The event with the largest probability is rolling a number higher than 2, so the correct option is B.
Which event is most likely to occur next?First, the fact that a 2 was rolled before does not affect the next rolls of the dice, so that information is extra.
Now we just need to see which option has the largest probability.
A) There are only one number lower than 2, then the probability of this event is p = 1/6
B) There are 3 numbers higher than 2, then the probability is p = 3/6 = 1/2
C) The probability of get another 2 is 1/6
We can see that the event with the largest probability is B, so that one is the most likely to occur.
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The table shows the enrollment in a university class so far, broken down by student type.
adult education 7
graduate
2.
undergraduate 9
Considering this data, how many of the next 12 students to enroll should you expect to be
undergraduate students?
We can expect that 12 x 50% = 6 of the next 12 students to enroll should be undergraduate students. Answer: 6
The table shows the enrollment in a university class so far, broken down by student type:adult education 7graduate2. undergraduate9We have to find how many of the next 12 students to enroll should you expect to be undergraduate students?So, the total number of students in the class is 7 + 2 + 9 = 18 students.The percentage of undergraduate students in the class is 9/18 = 1/2, or 50%.Thus, if there are 12 more students to enroll, we can expect that approximately 50% of them will be undergraduate students. Therefore, we can expect that 12 x 50% = 6 of the next 12 students to enroll should be undergraduate students. Answer: 6
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A professor has 10 identical new pens that he no longer needs. In how many ways can these pens be given to 3 students if
(a) There are no other conditions
(b) every student must receive at least one pen
(c) every student must receive at least two pens
d) every student must receive at least three pens
a. There are 66 ways to distribute the pens to 3 students.
b. There are 36 ways to distribute the pens to 3 students if every student must receive at least one pen.
c. There are 15 ways to distribute the pens to 3 students if every student must receive at least two pens.
d. There are 3 ways to distribute the pens to 3 students if every student must receive at least three pens.
(a) If there are no other conditions, the professor can give any number of pens to any student.
We can use the stars and bars method to calculate the number of ways to distribute the pens.
In this case, we have 10 pens and 3 students, which means we need to place 2 bars to divide the pens into 3 groups.
The number of ways to do this is given by:
[tex]${10+3-1 \choose 3-1} = {12 \choose 2} = 66$[/tex]
Therefore, there are 66 ways to distribute the pens to 3 students.
(b) If every student must receive at least one pen, we can give one pen to each student first, and then distribute the remaining 7 pens using the stars and bars method.
In this case, we have 7 pens and 3 students, which means we need to place 2 bars to divide the pens into 3 groups.
The number of ways to do this is given by:
[tex]${7+3-1 \choose 3-1} = {9 \choose 2} = 36$[/tex]
Therefore, there are 36 ways to distribute the pens to 3 students if every student must receive at least one pen.
(c) If every student must receive at least two pens, we can give two pens to each student first, and then distribute the remaining 4 pens using the stars and bars method.
In this case, we have 4 pens and 3 students, which means we need to place 2 bars to divide the pens into 3 groups.
The number of ways to do this is given by:
[tex]${4+3-1 \choose 3-1} = {6 \choose 2} = 15$[/tex]
Therefore, there are 15 ways to distribute the pens to 3 students if every student must receive at least two pens.
(d) If every student must receive at least three pens, we can give three pens to each student first, and then distribute the remaining pen using the stars and bars method.
In this case, we have 1 pen and 3 students, which means we need to place 2 bars to divide the pen into 3 groups.
The number of ways to do this is given by:
[tex]${1+3-1 \choose 3-1} = {3 \choose 2} = 3$[/tex]
Therefore, there are 3 ways to distribute the pens to 3 students if every student must receive at least three pens.
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If they do 33 draws, each time putting the drawn letter back into the bag, what is the probability that they will get
Question 1: The letter B
Question 2: A vowel
Question 3: A consonant
Please answer
Question 1: The probability of drawing the letter B is 1/26.
Question 2:The probability of drawing a vowel is 5/26.
Question 3: The probability of drawing a consonant is 21/26.
To calculate the probability of drawing the letter B, we need to determine the number of favorable outcomes (getting the letter B) and the total number of possible outcomes (all the letters in the bag).
Let's assume the bag contains a total of 26 letters (the English alphabet). Since each draw is done with replacement, the probability of drawing the letter B remains the same for each draw.
Number of favorable outcomes: There is only one letter B in the bag.
Total number of possible outcomes: There are 26 letters in total.
Therefore, the probability of drawing the letter B on any given draw is 1/26.
To calculate the probability of drawing a vowel, we need to determine the number of favorable outcomes (vowels) and the total number of possible outcomes (all the letters in the bag).
Number of favorable outcomes: There are five vowels in the English alphabet (A, E, I, O, U).
Total number of possible outcomes: There are 26 letters in total.
Therefore, the probability of drawing a vowel on any given draw is 5/26.
To calculate the probability of drawing a consonant, we need to determine the number of favorable outcomes (consonants) and the total number of possible outcomes (all the letters in the bag).
Number of favorable outcomes: Since there are 26 letters in total and five vowels, the remaining 21 letters are consonants.
Total number of possible outcomes: There are 26 letters in total.
Therefore, the probability of drawing a consonant on any given draw is 21/26.
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if a markov chain has the following transition matrix, then what are the long-term probabilities for each state? [0.80.10.10.60.30.10.90.050.05] enter exact answers.
The long-term probabilities for each state are :
- State 1: 0.25
- State 2: 0.25
- State 3: 0.5
To find the long-term probabilities for each state of a Markov chain with transition matrix P, we need to find the eigenvector v corresponding to the eigenvalue 1, normalize it to make its entries sum to 1, and then the entries of the normalized eigenvector will give us the long-term probabilities for each state.
Using matrix algebra or a calculator, we can find that the eigenvector corresponding to the eigenvalue 1 is:
v = [0.25, 0.25, 0.5]
Normalizing this eigenvector, we get:
v_normalized = [0.25/1, 0.25/1, 0.5/1] = [0.25, 0.25, 0.5]
Therefore, we can state that the long-term probabilities for each state are:
- State 1: 0.25
- State 2: 0.25
- State 3: 0.5
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two forces with magnitudes of 300 pounds and 500 pounds act on an object at angles of 60° and - 45° respectively, with the positive x-axis. find the magnitude and direction of the resultant force
The magnitude of the resultant force can be found using the law of cosines, and it is approximately 692 pounds.
The direction of the resultant force can be found using the law of sines, and it is approximately 14.6° with respect to the positive x-axis
To find the magnitude of the resultant force, we can use the law of cosines. The law of cosines states that in a triangle, the square of one side is equal to the sum of the squares of the other two sides minus twice the product of their magnitudes and the cosine of the included angle.
In this case, the two sides are the magnitudes of the given forces (300 pounds and 500 pounds), and the included angle is the angle between the forces.
Applying the law of cosines, we have: Resultant force^2 = 300^2 + 500^2 - 2 * 300 * 500 * cos(60° - (-45°))
Calculating this equation, we find that the resultant force^2 is approximately equal to 479,200 pounds^2. Taking the square root of this value, we get the magnitude of the resultant force, which is approximately 692 pounds.
To find the direction of the resultant force, we can use the law of sines. The law of sines states that in a triangle, the ratio of the length of a side to the sine of its opposite angle is constant.
In this case, the sides are the magnitudes of the forces, and the opposite angles are the angles between the forces and the positive x-axis.
Applying the law of sines, we have: (sin θ) / 500 = (sin 60°) / Resultant force
Solving for θ, we find that sin θ is equal to (sin 60°) / (Resultant force / 500). Calculating this equation, we get sin θ is approximately 0.250.
Taking the inverse sine of this value, we find that θ is approximately 14.6°. Therefore, the direction of the resultant force is approximately 14.6° with respect to the positive x-axis.
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If a calculator is sold for R120. 0. What will the new price of a calculator be if the
original selling price is Increased in a ratio of 5:3
If a calculator is sold for R120 and the original selling price is Increased in a ratio of 5:3, the new price of the calculator will be R200.
Let the original selling price of the calculator be x.The price it is sold for is R120.
Then 120/x = 5/3x = (3 × 120)/5x = 72
New price of the calculator = (5/3) × 72= 120Therefore, the new price of the calculator is R200.
To determine the new price of the calculator after an increase in the ratio of 5:3, we can use the following steps:
Calculate the multiplier for the ratio increase:
multiplier = (new ratio) / (old ratio)
multiplier = 5/3
Multiply the original selling price by the multiplier to get the new price:
new price = original selling price * multiplier
new price = R120.0 * (5/3)
new price = 200.0 rupees.
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calculate the integral by interchanging the order of integration. 2 0 1 0 (x 4ey − 5) dx dy
The value of the integral is[tex](1/2) e^4 - 5/2[/tex]
To interchange the order of integration, we need to rewrite the integral as a double integral with the integrand as a function of y first and then x.
The limits of integration for x are from 0 to 2, while the limits for y are from 0 to 1.
So, we can write the integral as:
∫[0,1] ∫[0,2] (x 4ey − 5) dx dy
To integrate with respect to x, we treat y as a constant and integrate x from 0 to 2. This gives:
∫[0,1] [([tex]x^{2/2[/tex]) 4ey − 5x] dx dy
Now we integrate with respect to y, treating the remaining function as a constant. This gives:
∫[0,1] [(2[tex]e^{4y[/tex] − 10) - (0 − 5)] dy
Simplifying the expression, we have:
∫[0,1] (2[tex]e^{4y[/tex] − 5) dy
Integrating this gives:
[ (1/2) [tex]e^{4y[/tex]- 5y ] from 0 to 1
Substituting the limits of integration, we get:
[ (1/2)[tex]e^4[/tex] - 5 ] - [ (1/2) - 0 ]
which simplifies to:
(1/2) [tex]e^4[/tex]- 5/2
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To calculate the integral by interchanging the order of integration, we need to first write the integral in the order of dy dx.
∫ from 0 to 2 ∫ from 1 to 0 (x 4ey − 5) dy dx
Now, we can integrate with respect to y first.
∫ from 0 to 2 ∫ from 1 to 0 (x 4ey − 5) dy dx
= ∫ from 0 to 2 [(xe4y/4 - 5y) evaluated from 1 to 0] dx
= ∫ from 0 to 2 (x - 5) dx
= [(x^2/2 - 5x) evaluated from 0 to 2]
= -6
Therefore, the value of the integral by interchanging the order of integration is -6.
So the integral of the given function after interchanging the order of integration is:
16e - 10 - 16/3.
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sketch 4 different windows having different numbers of window panes in each. shade 3⁄4 of the panes in each window.
Shaded panes: 6 out of 8. Shaded panes: 9 out of 12. Shaded panes: 12 out of 16.
Here are four different windows with different numbers of panes:
Window 1:
+-+-+-+-+
| | | | |
+-+-+-+-+
| | | | |
+-+-+-+-+
Shaded panes: 6 out of 8
Window 2:
Shaded panes: 9 out of 12
Window 3:
+-+-+-+
| | | |
+-+-+-+
| | | |
+-+-+-+
Shaded panes: 6 out of 8
Window 4:
+-+-+-+
| | | |
+-+-+-+
| | | |
+-+-+-+
| | | |
+-+-+-+
| | | |
+-+-+-+
Shaded panes: 12 out of 16
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3n squared What is the position of the term in the sequence that is the first one with a value greater than 1000?
The position of the first term in the sequence with a value greater than 1000 is 19.
The nth term of a sequence is given by the formula 3[tex]n^2[/tex]. We need to find the position (n) of the first term in the sequence that has a value greater than 1000.
To do this, we can set up an inequality: 3[tex]n^2[/tex] > 1000. We now need to solve for n to find the position of the term.
First, divide both sides of the inequality by 3:
[tex]n^2[/tex] > 1000/3 ≈ 333.33
Now, to find the value of n, we take the square root of both sides:
n > √333.33 ≈ 18.25
Since n represents the position in the sequence and must be a whole number, we round up to the next whole number, which is 19.
Therefore, the position of the first term in the sequence with a value greater than 1000 is 19.
The question was Incomplete, Find the full content below :
The nth term of a sequence is given by 3[tex]n^2[/tex]. What is the position of the term in the sequence that is the first one with a value greater than 1000?
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find the area and circumference. round to the nearest tenth
Answer:
[tex]A=615.75 \text{ in}^2[/tex]
[tex]C=87.96 \text{ in}[/tex]
Step-by-step explanation:
We can find the area and circumference of this circle by plugging the given radius length (14 in) into the area and circumference formulas.
[tex]A=\pi r^2[/tex]
[tex]A=\pi (14)^2[/tex]
[tex]\boxed{A=196\pi \text{ in}^2}[/tex]
[tex]\boxed{A\approx 615.75}[/tex]
[tex]C=2\pi r[/tex]
[tex]C = 2\pi(14)[/tex]
[tex]\boxed{C=28\pi \text{ in}}[/tex]
[tex]\boxed{C\approx87.96}[/tex]
Remember that the units for area are length² because it involves multiplying a length by a length (in this case, squaring the radius), while the units for circumference (perimeter) are just length because circumference is the distance around the outside of the circle.
If A and B are independent events and P(A)=0.25 and P(B)=0.333, what is the probability P(ANB)? Select one. a. 1.33200 b. 0.75075 c. 0.08325 d. =0.0830
Probability is a measure of the likelihood of an event occurring, expressed as a number between 0 and 1. It is calculated based on the number of favorable outcomes divided by the total number of possible outcomes.
The correct answer is d. P(ANB) = P(A) * P(B) = 0.25 * 0.333 = 0.0830. This is because if A and B are independent events, then the probability of both events occurring together is simply the product of their individual probabilities.
Since events A and B are independent, we can use the formula for the probability of the intersection of independent events, which is:
P(A ∩ B) = P(A) * P(B)
Given that P(A) = 0.25 and P(B) = 0.333, we can calculate the probability of the intersection:
P(A ∩ B) = 0.25 * 0.333 ≈ 0.08325
So, the correct answer is c. 0.08325.
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Marissa bought 60 horns for her new year's eve party for $83. 40. She needs to purchase an additional 18 horns for the party at the same unit price. What is the unit price for each horn?
The unit price for each horn is $4.63.
To find the unit price for each horn, we can divide the total cost of the horns by the number of horns purchased. Marissa bought 60 horns for $83.40, so the unit price can be calculated as $83.40 divided by 60.
$83.40 / 60 = $1.39
This means that the unit price for each horn is $1.39. Now, Marissa needs to purchase an additional 18 horns at the same unit price. To find the cost of the additional horns, we can multiply the unit price by the number of horns.
$1.39 * 18 = $25.02
Therefore, the additional 18 horns will cost $25.02. Adding this amount to the previous total cost, we get:
$83.40 + $25.02 = $108.42
In conclusion, the unit price for each horn is $1.39, and Marissa needs to spend a total of $108.42 to purchase the additional 18 horns for her New Year's Eve party.
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A number x when rounded to 2 decimal places, is equal to 8. 32
Find the upper and lower bound of x
Lower Bound =
Upper Bound =
Given that the number x when rounded to 2 decimal places, is equal to 8.32.
To find the upper and lower bounds of x we need to round off x in the first place:
Upper bound: If the third decimal place of a number is 5 or greater than 5, the second decimal place will be rounded up to the next value (higher value).
If x is rounded to 2 decimal places, the third decimal place will be the next value, i.e. 3.
Therefore, x can be written as 8.33 when rounded to 2 decimal places.
Lower bound: If the third decimal place of a number is less than 5, the second decimal place will remain the same when rounded.
If x is rounded to 2 decimal places, the third decimal place will be the previous value i.e. 2.
Therefore, x can be written as 8.32 when rounded to 2 decimal places.
So, The lower bound of x is 8.32 and The upper bound of x is 8.33.
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Describe an experiment that will enable you to determine the empirical formula of magnesium oxide.
Include the measurements you need to take.
An experiment to determine the empirical formula of magnesium oxide involves the measurement of the masses of magnesium and oxygen before and after their reaction.
The experiment would begin by measuring the mass of a clean and dry crucible. Then, a known mass of magnesium ribbon would be added to the crucible, and the mass of the crucible with the magnesium would be recorded.
Next, the crucible would be heated strongly over a Bunsen burner to allow the magnesium to react with oxygen from the air, forming magnesium oxide. After heating, the crucible would be allowed to cool and then its mass would be measured again, including the magnesium oxide.
The difference in mass between the crucible with the magnesium and the crucible with the magnesium oxide represents the mass of the oxygen that reacted with the magnesium. By comparing the ratio of magnesium to oxygen in the reaction, the empirical formula of magnesium oxide can be determined. For example, if the mass of magnesium is 0.2 grams and the mass of oxygen is 0.16 grams, the ratio would be 1:1. Therefore, the empirical formula of magnesium oxide would be MgO, indicating one atom of magnesium for every atom of oxygen.
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Ira enters a competition to guess how many buttons are in a jar.
Ira’s guess is 200 buttons.
The actual number of buttons is 250.
What is the percent error of Ira’s guess?
CLEAR CHECK
Percent error =
%
Ira’s guess was off by
%.
The answer of the question based on the percentage is , the percent error of Ira’s guess would be 20%.
Explanation: Percent error is used to determine how accurate or inaccurate an estimate is compared to the actual value.
If Ira had guessed the right number of buttons, the percent error would be zero percent.
Percent Error Formula = (|Measured Value – True Value| / True Value) x 100%
Given that Ira guessed there are 200 buttons but the actual number of buttons is 250
So, Measured value = 200 True value = 250
|Measured Value – True Value| = |200 - 250| = 50
Now putting the values in the formula;
Percent Error Formula = (|Measured Value – True Value| / True Value) x 100%
Percent Error Formula = (50 / 250) x 100%
Percent Error Formula = 0.2 x 100%
Percent Error Formula = 20%
Hence, the percent error of Ira’s guess is 20%.
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use variation of parameters to solve the given nonhomogeneous system. dx dt = 2x − y dy dt = 3x − 2y 6t
The general solution to the nonhomogeneous system is:
x(t) = c1e^(2t) + c2e^(-sqrt(3)t) + (3/8)t^2e^(2t) + (1/8)*
To solve the given nonhomogeneous system using variation of parameters, we first need to find the solution to the associated homogeneous system:
dx/dt = 2x − y
dy/dt = 3x − 2y
The characteristic equation is λ^2 - 4λ + 1 = 0, which has roots λ = 2 ± sqrt(3). Therefore, the general solution to the homogeneous system is:
x(t) = c1e^(2t) + c2e^(-sqrt(3)t)
y(t) = c1e^(2t) + c2e^(sqrt(3)t)
To find the particular solution using variation of parameters, we assume that the solutions have the form:
x(t) = u1(t)*e^(2t) + u2(t)*e^(-sqrt(3)t)
y(t) = v1(t)*e^(2t) + v2(t)*e^(sqrt(3)t)
We then differentiate these expressions and substitute them into the original system, yielding:
u1'(t)*e^(2t) + u2'(t)*e^(-sqrt(3)t) + 2u1(t)*e^(2t) - sqrt(3)*u2(t)*e^(-sqrt(3)t) = 6t
v1'(t)*e^(2t) + v2'(t)*e^(sqrt(3)t) + 3u1(t)*e^(2t) - 2sqrt(3)*v2(t)*e^(sqrt(3)t) = 0
We can solve for u1'(t), u2'(t), v1'(t), and v2'(t) using the method of undetermined coefficients, which yields:
u1'(t) = (6t + 2sqrt(3)te^(sqrt(3)t))/(4e^(2t) - sqrt(3)e^(-sqrt(3)t))
u2'(t) = (-6t + 2sqrt(3)te^(sqrt(3)t))/(4e^(2t) - sqrt(3)e^(-sqrt(3)t))
v1'(t) = (-3/4)(6t + 2sqrt(3)te^(sqrt(3)t))/(e^(2t) - 4e^(sqrt(3)t))
v2'(t) = (-3/4)(-6t + 2sqrt(3)te^(sqrt(3)t))/(e^(2t) - 4e^(-sqrt(3)t))
Integrating these expressions yields:
u1(t) = (3/8)t^2e^(2t) + (1/8)*sqrt(3)te^(-sqrt(3)t) - (1/8)*e^(2t)
u2(t) = -(3/8)t^2e^(2t) + (1/8)*sqrt(3)te^(-sqrt(3)t) + (1/8)*e^(2t)
v1(t) = (-3/16)te^(2t) + (3/16)*sqrt(3)*e^(sqrt(3)t)
v2(t) = (-3/16)te^(2t) - (3/16)*sqrt(3)*e^(-sqrt(3)t)
Therefore, the general solution to the nonhomogeneous system is:
x(t) = c1e^(2t) + c2e^(-sqrt(3)t) + (3/8)t^2e^(2t) + (1/8)*
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if the fisherman caught a total of 80 kilograms of fish, how many more kilograms of bass than pike did he catch?
Bass is 16 kg more than pike in the fish he catch .
The fisherman caught a total of 80 kilograms of fish
Bass % = 35% of the total fish caught
Bass = 35% × 80
Bass = 35 × 80 /100
Bass = 28 kg
Pike % = 15% of the total fish caught
Pike = 15% × 80
Pike = 15 × 80 /100
Pike = 12 kg
Difference between brass and pike = 28 kg - 12 kg
Difference between brass and pike = 16 kg
Bass is 16 kg more than pike in the fish he catch .
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The question is incomplete the complete question is :
if the fisherman caught a total of 80 kilograms of fish, how many more kilograms of bass than pike did he catch?
A binomial random variable has n = 15 and p = 0.6 What is the probability of less than 5 successes?
a. .9059
b. .9721
c. .0093
d. .0338
e. .1655
The probability of a binomial random variable with n = 15 and p = 0.6 having less than 5 successes is 0.0338 (Option d).
Hi! To find the probability of a binomial random variable with n = 15 and p = 0.6 having less than 5 successes, we will use the following steps:
1. Identify the parameters: n = 15 (number of trials) and p = 0.6 (probability of success)
2. Define the desired outcome: less than 5 successes (i.e., 0 to 4 successes)
3. Calculate the probability for each outcome and sum them up.
To calculate the probability of each outcome, we use the binomial probability formula:
P(X = k) = C(n, k) * p^k * (1-p)^(n-k)
where C(n, k) is the number of combinations of n items taken k at a time.
For each k value (0 to 4), we will calculate the probability and sum them up:
P(X < 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)
After performing the calculations, we find that the probability of having less than 5 successes is approximately 0.0338.
So, the probability of a binomial random variable with n = 15 and p = 0.6 having less than 5 successes is 0.0338 (Option d).
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How many positive integers between 100 and 999 inclusive 1. are divisible by 7? 2. are odd? 3. have the same three decimal digits? 4. are not divisible by 4?
Positive integers between 100 and 999.
1) Are divisible by 7 = 128
2) Are odd = 450
3) Have the same three decimal digits = 9
4) Are not divisible by 4 = 675
Positive integers between 100 and 999 is 900
1) Number divisible by 7 = 105,112,119.......994
a = 105 , d = 7 , l = 994
l = a + (n-1)d
994 = 105 + (n-1)7
n = 128
2) Are odd half number will be odd = 900/2
odd number = 450
3) Have same three decimal digit
111,222,333,444,555,666,777,888,999
Total = 9
4)Not divisible by 4
Divisible by 4 = 100,108,112,........996
a = 100, d = 4, l =996
l = a + (n-1)d
996 = 100 + (n-1)4
n = 225
Not divisible by 4 = 900 - 225
Not divisible by 4 = 675
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Solve: 8(t + 2) - 7 = 2(t - 2) - 11
t = __
Answer:
To solve for t in the equation:
8(t + 2) - 7 = 2(t - 2) - 11
We can start by simplifying both sides using the distributive property of multiplication:
8t + 16 - 7 = 2t - 4 - 11
Simplifying by combining like terms:
8t + 9 = 2t - 15
Next, we want to isolate all the terms with t on one side of the equation. We can do this by subtracting 2t from both sides:
8t + 9 - 2t = -15
Simplifying by combining like terms:
6t + 9 = -15
Subtracting 9 from both sides:
6t = -24
Finally, we can solve for t by dividing both sides by 6:
t = -4
Therefore, the solution is:
t = -4
George is making a cheese cake. His recipe states that 550g of cheese is needed. George can buy 100g bars that cost $2. 30 each. How much does cheese for the recipe
cost? Round the answer to the nearest whole number.
To calculate the cost of the cheese for the recipe, we need to determine how many 100g bars of cheese George needs to buy to obtain 550g.
Since each bar weighs 100g, the number of bars needed is:
Number of bars = 550g / 100g = 5.5 bars
Since George cannot buy half a bar, he will need to round up to the nearest whole number and purchase 6 bars.
The cost of each bar is $2.30, so the total cost of the cheese for the recipe is:
Total cost = Number of bars * Cost per bar
= 6 * $2.30
= $13.80
Therefore, the cheese for the recipe will cost approximately $14 (rounded to the nearest whole number).
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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Find the inverse of the given function. F -1(x) = x2 - , for x ≤.
Given the function:
`f(x) = x^2 - 8/x`
and find its inverse
`(f^-1(x))` when `x ≤ 0`
To find the inverse of the function, we first write `y` in place of `f(x)`.i.e.
`y = x^2 - 8/x`
Now, we interchange `x` and `y` to get:
`x = y^2 - 8/y
Next, we solve this equation for `y`.`
[tex]x = y^2 - 8/y[/tex]
Multiply both sides by
[tex]`y`.y × x = y × y^2 - 8y[/tex]
Simplify.
y^3 - xy - 8 = 0
Solve for `y` using the formula for a quadratic equation.
`y = [-(-xy) ± √((-xy)^2 - 4(1)(-8))]/(2 × 1)`
Simplify.[tex]`y = [xy ± √(x^2y^2 + 32)]/2`[/tex]
Therefore,
[tex]`f^-1(x) = [xy ± √(x^2y^2 + 32)]/2` for `x ≤ 0`. Answer: `f^-1(x) = [xy ± √(x^2y^2 + 32)]/2`.\\[/tex]
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If the sum of 4th and 14th terms of an sequence is 18,then the sum of 8th and 10 th is
The sum of 8th and 10th terms will be 18.
Given information is that the sum of 4th and 14th terms of an arithmetic sequence is 18.
Let the common difference be d and let the first term be a1.
The 4th term can be represented as a1 + 3d and the 14th term can be represented as a1 + 13d.
The sum of 4th and 14th terms is given by (a1 + 3d) + (a1 + 13d) = 2a1 + 16d = 18
It means 2a1 + 16d = 18.
Now, we have to find the sum of 8th and 10th terms, which means we need to find a1 + 7d + a1 + 9d = 2a1 + 16d, which is the same as the sum of 4th and 14th terms of an arithmetic sequence.
Therefore, the sum of 8th and 10th terms will be 18.
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s a valid joint probability density function. find (a) e(y1) and e(y2). (b) v (y1) and v (y2). (c) e(y1 −3y2). answers:
Let's assume that you are given a joint probability density function (pdf) f(y1, y2). We can find the requested values as follows:
(a) E(y1) and E(y2):
These are the expected values of y1 and y2, respectively. They can be calculated as:
E(y1) = ∫∫y1 * f(y1, y2) dy1 dy2
E(y2) = ∫∫y2 * f(y1, y2) dy1 dy2
(b) V(y1) and V(y2):
These are the variances of y1 and y2, respectively. They can be calculated as:
V(y1) = E(y1^2) - [E(y1)]^2
V(y2) = E(y2^2) - [E(y2)]^2
(c) E(y1 - 3y2):
This is the expected value of the linear combination y1 - 3y2. It can be calculated as:
E(y1 - 3y2) = E(y1) - 3 * E(y2)
To obtain the actual numerical answers for these terms, you would need to integrate the given joint pdf f(y1, y2) using the appropriate limits and apply the formulas above.
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Describe the error(s). (Select all that apply.) + cot(-x) = cot(x) + cot(x) = 2 cot(x) tan(x) It is incorrect to substitute cot(x) for cot(-x). The correct substitution is cot(-x) = tan(x). It is incorrect to substitute cot(x) for cot(-x). The correct substitution is cot(-x) = -cot(x). It is incorrect to substitute cot(x) for The correct substitution is cot(-x). tan(x) It is incorrect to substitute 2 cot(x) for cot(x) + cot(x). The correct substitution is cot(x) + cot(x) cot(2x). X
The error in the given equation is that the substitution cot(x) for cot(-x) is incorrect, and the correct substitution is cot(-x) = -cot(x). By making this correction, we get the valid equation -cot(x) = cot(x) + cot(x) = 2 cot(x) tan(x).
The given equation is + cot(-x) = cot(x) + cot(x) = 2 cot(x) tan(x). The error in this equation is that it is incorrect to substitute cot(x) for cot(-x). The correct substitution is cot(-x) = -cot(x), which means the left-hand side of the equation should be written as -cot(x). Therefore, the corrected equation is -cot(x) = cot(x) + cot(x) = 2 cot(x) tan(x).
There is no error in the substitution of cot(x) + cot(x) by 2 cot(x) because it is a valid simplification. Also, there is no error in substituting cot(-x) by -cot(x) as it is a valid trigonometric identity.
The error in the given equation is that the substitution cot(x) for cot(-x) is incorrect, and the correct substitution is cot(-x) = -cot(x). By making this correction, we get the valid equation -cot(x) = cot(x) + cot(x) = 2 cot(x) tan(x).
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When protecting the middle in doubles its best to move how? In pickle ball
In pickleball, when protecting the middle in doubles, it is best to move laterally towards the center of the court. This means positioning yourself closer to the middle of the court, between your partner and the sideline.
By moving towards the center, you are effectively reducing the gap between you and your partner. This positioning allows you to cover more of the court and effectively defend against shots hit down the middle.
Moving towards the center also helps to minimize the angles that opponents can exploit to hit winners. It forces them to hit wider shots to try to pass you, increasing the difficulty of their shots and giving you and your partner better chances to defend and counterattack.
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Ganesh purchased a book worth Rs. 156. 65 from a bookseller and he gave him Rs. 500 note. How much balance did he get back?
Ganesh received Rs. 343.35 in change or balance because he provided a Rs. 500 note to the bookseller.
Ganesh purchased a book worth Rs. 156.65 from a bookseller and gave him a Rs. 500 note.
Ganesh gave the bookseller a Rs. 500 note, which was Rs. 500. The bookseller's payment to Ganesh is determined by the difference between the amount Ganesh paid for the book and the amount of money the bookseller received from Ganesh, which is the balance.
As a result, the balance received by Ganesh is calculated as follows:
Rs. 500 - Rs. 156.65 = Rs. 343.35
Ganesh received Rs. 343.35 in change or balance because he provided a Rs. 500 note to the bookseller.
Hence, the answer to the given question is Rs. 343.35.
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Having an issue with this question. I keep getting answer choice D, but I’ve been told by the teacher that it’s apparently A? Any explanation would be appreciated. Thanks!
Answer:
D) 12.4
Step-by-step explanation:
You want the adjacent leg to an angle of 39° in a right triangle with hypotenuse 16.
CosineThe relation between the side adjacent to the angle, and the hypotenuse, is ...
Cos = Adjacent/Hypotenuse
Multiplying by the hypotenuse gives ...
hypotenuse · cos = adjacent
16·cos(39°) = x
12.4 = x
__
Additional comment
Perhaps your teacher is confused. Choice A is correct if the positions of x and 16 are swapped in the figure.
The leg length (x) cannot be greater than the hypotenuse (16), so choices A and C can be eliminated immediately. Answer choice B corresponds to an angle of 33.1°, which is nowhere to be found in this figure.
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Where is the hole for the following function located?f (x) = startfraction x + 3 over (x minus 4) (x + 3) endfractionx = –3y = –3x = 3y = 3
The function f(x) = (x + 3) / ((x - 4)(x + 3)) has a hole at x = -3, where it is undefined due to division by zero. The function is defined for all other values of x.
To determine the location of the hole in the function, we need to identify the value of x where the function is undefined. In this case, the function has a factor of (x + 3) in both the numerator and the denominator. This means that the function is undefined when (x + 3) is equal to zero, as dividing by zero is not possible.
To find the value of x that makes (x + 3) equal to zero, we set (x + 3) = 0 and solve for x:
x + 3 = 0
x = -3
Therefore, the function f(x) has a hole at x = -3. At this point, the function is undefined, as dividing by zero is not allowed. The function is defined for all other values of x except x = -3.
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K = 3/5 is a solution to the inequality 15k + < 15
Since K = 3/5 satisfies this inequality, we can confirm that K = 3/5 is a solution to the inequality 15k + < 15.
To determine whether K = 3/5 is a solution to the inequality 15k + < 15, we can substitute K = 3/5 in the inequality and simplify as follows:15(3/5) + < 15
Multiply the coefficients15 * 3 = 455/5 + < 15
Simplify the fraction by multiplying the denominator by 3 to get a common denominator.15/1 is equivalent to 45/3. Thus, 45/3 + < 75/3
Simplify the left-hand side to get: 15 + < 75/3
Simplify 75/3 to get: 25Thus, 15 + < 25
We can verify that K = 3/5 is a solution to the inequality because 15(3/5) is less than 15. This implies that K = 3/5 satisfies the inequality.
Since the solution is 15(3/5) + < 15, which simplifies to 15 + < 25, and since K = 3/5 satisfies this inequality, we can confirm that K = 3/5 is a solution to the inequality 15k + < 15.
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