What is the y-intercept for y = 4x + 7
Answers
Answer: -7 is the y intercept
Step-by-step explanation:
Related Questions
Line m : y=4x+10
What would be the slope of a parallel line?
Answers
The slope of parallel lines is the same. The slope of both lines is 4 if somehow the path y = 4x - 10 is perpendicular to it.
In arithmetic, what is a slope?A line's angle of incidence might well be determined by looking at its slope. Slope is computed mathematically as "rise under flow" (change in y divided by change in x). A bridge's slope usually indicates the slopes and direction of the line. By calculating the change between both the measurements of the two locations, (x1,y1) and (x2,y2), it is simple to estimate the slopes of a horizontal path between them. The letters "m" is sometimes used this to represent slope.
In the point slope form, replace m = 1 with to create the equation (1,13).
y - y₁ = m(x - x₁)
y - 13 = 4 (x-1)
y - 13 = 4x - 4
y = 4x + 9
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The complete question is-
What is an equation of the line that is parallel to y=4x-10 and passes through (1,13)?
For the following two numbers, find two factors of the first number such that their product is the first number and their sum is the second number.
36,13
Answers
The two factors of the first number 36 which their sum is equal to 13 are 4 and 9.
What is factor of a numberFactor is a number that divides another number without a remainder. That is if multiplying two whole numbers gives us a product, then the numbers we are multiplying are factors of the product.
The first number 36 have the following factors:
1, 2, 3, 4, 6, 9, 12, 18, and 36.
the factors 4 and 9 will be the factors in question because;
4 × 9 = 36
4 + 9 = 13
Therefore, 4 and 9 are the two factors of 36 that their product is the first number 36 and their sum is the second number 13.
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What is the measure of each angle inside the figure (the value of x)?
(Hint-This equals 360° divided by the number of sides of the figure.)
Answers
Answer:
60
Step-by-step explanation:
360 degrees divided by 6 sides equal 60 degrees
Compute the lower Riemann sum for the given function f(x) = x^2 over the interval x E [-1,1] with respect to the partition P = [-1, -1/4, 1/2, 3/4, 1]
Answers
Answer:
[tex]\dfrac{1}{4}=0.25[/tex]
Step-by-step explanation:
The Riemann sum is a method by which we can approximate the area under a curve using a series of rectangles.
The Lower Riemann Sum uses the minimum height of the rectangle on each subinterval.
As the Lower Riemann Sum is entirely below the curve, it is an underestimation of the area under the curve.
The number of partitions is the number of rectangles used.
Partitions can be of equal length or not of equal length.
Given:
Function: f(x) = x²Interval: [-1, 1]Partition, P = [-1, -1/4, 1/2, 3/4, 1]The given partition divides the interval [-1, 1] into 4 subintervals:
[-1, -1/4], [-1/4, 1/2], [1/2, 3/4] and [3/4, 1]To calculate the areas of the rectangles, multiply the width of each rectangle by its height.
The width is the difference between the x-values of each subinterval.
The height is the minimum value of the function across the subinterval.
First rectangle [-1, -1/4]:
[tex]\begin{aligned}\implies \left(-\dfrac{1}{4}-(-1)\right) \cdot f\left(-\dfrac{1}{4}\right)&=\dfrac{3}{4} \cdot \left(-\dfrac{1}{4}\right)^2\\\\&=\dfrac{3}{4} \cdot \dfrac{1}{16}\\\\&=\dfrac{3}{64}\end{aligned}[/tex]
Second rectangle [-1/4, 1/2]:
[tex]\begin{aligned}\implies \left(\dfrac{1}{2}+\dfrac{1}{4}\right) \cdot f\left(0\right)&=\dfrac{3}{4} \cdot (0)^2\\\\&=\dfrac{3}{4} \cdot 0\\\\&=0\end{aligned}[/tex]
Third rectangle [1/2, 3/4]:
[tex]\begin{aligned}\implies \left(\dfrac{3}{4}-\dfrac{1}{2}\right) \cdot f\left(\dfrac{1}{2}\right)&=\dfrac{1}{4} \cdot \left(\dfrac{1}{2}\right)^2\\\\&=\dfrac{1}{4} \cdot \dfrac{1}{4}\\\\&=\dfrac{1}{16}\end{aligned}[/tex]
Fourth rectangle [3/4, 1]:
[tex]\begin{aligned}\implies \left(1-\dfrac{3}{4}\right) \cdot f\left(\dfrac{3}{4}\right)&=\dfrac{1}{4} \cdot \left(\dfrac{3}{4}\right)^2\\\\&=\dfrac{1}{4} \cdot \dfrac{9}{16}\\\\&=\dfrac{9}{64}\end{aligned}[/tex]
Therefore, the Lower Reimann Sum for the given function over the given interval and partitions is the sum of the area of the rectangles:
[tex]\implies \dfrac{3}{64}+0+\dfrac{1}{16}+\dfrac{9}{64}=\dfrac{1}{4}=0.25[/tex]
1/2(x-5)=9 what is the value of x
Answers
Answer:
23
Step-by-step explanation:
1/2-2.5=9
1/2x=9+2.5
x=11.5/0.5
x=23
For each value below, enter the number correct to four decimal places.
Suppose an arrow is shot upward on the moon with a velocity of 28 m/s, then its height in meters after t seconds is given by h(t) = 28t − 0.83t^2. Find the average velocity over the given time intervals.
A. [10, 11]:
B. [10, 10.5]:
C. [10, 10.1]:
D. [10, 10.01]:
E. [10, 10.001]:
Answers
The average velocity over the given time intervals [10, 11], [10, 10.5], [10, 10.1], [10, 10.01], and [10, 10.001] are -2.1425 m/s, -4.7475 m/s, -9.1260 m/s, -98.4300 m/s, and -984.3000 m/s, respectively.
A. [10, 11]: -2.1425 m/s
The average velocity over the given time interval is given by:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 11.
Therefore,
v_avg = (h(11)-h(10))/(11-10)
= (28×11 - 0.83×11² - (28×10 - 0.83×10²))/(11-10)
= (-2.83)/1
= -2.83 m/s
Rounding to four decimal places, we get the answer as -2.1425 m/s.
B. [10, 10.5]: -4.7475 m/s
The average velocity over the given time interval is given by:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.5.
Therefore,
v_avg = (h(10.5)-h(10))/(10.5-10)
= (28×10.5 - 0.83×10.5² - (28×10 - 0.83×10²))/(10.5-10)
= (-4.83)/0.5
= -9.66 m/s
Rounding to four decimal places, we get the answer as -4.7475 m/s.
C. [10, 10.1]: -9.1260 m/s
The average velocity over the given time interval is given by:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.1.
Therefore,
v_avg = (h(10.1)-h(10))/(10.1-10)
= (28×10.1 - 0.83×10.1² - (28×10 - 0.83×10²))/(10.1-10)
= (-9.843)/0.1
= -98.43 m/s
Rounding to four decimal places, we get the answer as -9.1260 m/s.
D. [10, 10.01]: -98.4300 m/s
The average velocity over the given time interval is given by:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.01.
Therefore,
v_avg = (h(10.01)-h(10))/(10.01-10)
= (28×10.01 - 0.83×10.01² - (28×10 - 0.83×10²))/(10.01-10)
= (-9.843)/0.01
= -984.3 m/s
Rounding to four decimal places, we get the answer as -98.4300 m/s.
E. [10, 10.001]: -984.3000 m/s
The average velocity over the given time interval is given by:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.001.
Therefore,
v_avg = (h(10.001)-h(10))/(10.001-10)
= (28×10.001 - 0.83×10.001² - (28×10 - 0.83×10²))/(10.001-10)
= (-9.843)/0.001
= -9843 m/s
Rounding to four decimal places, we get the answer as -984.3000 m/s.
Hence,
A. -2.1425 m/s
B. -4.7475 m/s
C. -9.1260 m/s
D. -98.4300 m/s
E. -984.3000 m/s
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The average velocity over the given time intervals [10, 11] will be -2.83 m/s, [10, 10.5] will be -9.66 m/s, [10, 10.1] will be -98.43 m/s, [10, 10.01] will be -984.3 m/s, and [10, 10.001] will be -9843 m/s
A. The given time interval is: [10, 11]
The average velocity throughout the specified time span may be calculated as follows:
[tex]v_avg = (h(b)-h(a))/(b-a)[/tex]
where a is the initial time and b is the final time.
In this case, a = 10 and b = 11.
Therefore, the value of the average velocity will be
v_avg = (h(11)-h(10))/(11-10)
= (28×11 - 0.83×11² - (28×10 - 0.83×10²))/(11-10)
= (-2.83)/1= -2.83 m/s
B. The given time interval is: [10, 10.5]
The average velocity throughout the specified time span may be calculated as follows:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.5.
Therefore,
v_avg = (h(10.5)-h(10))/(10.5-10)
= (28×10.5 - 0.83×10.5² - (28×10 - 0.83×10²))/(10.5-10)
= (-4.83)/0.5
= -9.66 m/s
C. The given time interval is: [10, 10.1]
The average velocity throughout the specified time span may be calculated as follows:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.1.
Therefore,
v_avg = (h(10.1)-h(10))/(10.1-10)
= (28×10.1 - 0.83×10.1² - (28×10 - 0.83×10²))/(10.1-10)
= (-9.843)/0.1= -98.43 m/s
D. The given time interval is: [10, 10.01]
The average velocity throughout the specified time span may be calculated as follows:
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.01.
Therefore,
v_avg = (h(10.01)-h(10))/(10.01-10)
= (28×10.01 - 0.83×10.01² - (28×10 - 0.83×10²))/(10.01-10)
= (-9.843)/0.01 = -984.3 m/s
E. The given time interval is: [10, 10.001]
The average velocity throughout the specified time span may be calculated as follows:
v_avg = (h(b)-h(a))/(b-a)
where a is the initial time and b is the final time.
In this case, a = 10 and b = 10.001.
Therefore,
v_avg = (h(10.001)-h(10))/(10.001-10)
= (28×10.001 - 0.83×10.001² - (28×10 - 0.83×10²))/(10.001-10)
= (-9.843)/0.001= -9843 m/s
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X^5 = -5 complex numbers using square roots
Answers
Poopy man is my husband uwu
anyways ur answer is 3^x
There is a jury of 12 people, 5 men and 7 women.
If we randomly select two people, how likely is it that they are both women?
Answers
what is the midpoint between (-7,-9) and (-0.5,-3)
Answers
The midpoint between (-7,-9) and (-0.5,-3) is (-3.75,-6)
The midpoint between two points in a Cartesian plane is the point that is equidistant from both points and is located exactly in the middle of the line segment connecting the two points. To find the midpoint, we need to average the x-coordinates and the y-coordinates of the two given points.
Given the points (-7,-9) and (-0.5,-3), the midpoint can be found by:
averaging the x-coordinates (-7 + -0.5) / 2 = -3.75
averaging the y-coordinates (-9 + -3) / 2 = -6
So, the midpoint between (-7,-9) and (-0.5,-3) is (-3.75,-6)
Alternatively, the midpoint formula is:
(x1+x2)/2 , (y1+y2)/2
So for the given points,
(x1,y1)= (-7,-9) and (x2,y2)= (-0.5,-3)
Midpoint (x,y) = (-7+(-0.5))/2 ,(-9+(-3))/2
= (-3.75,-6)
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Determine the distance between the points (-2,3) and (5,-3):
Answers
The distance between the given 2 points (-2, 3) and (5, -3) is 9.21 units.
What is the distance?The length of the line segment bridging two points on a plane is known as the distance between the points. d=((x2 - x1)2 + (y2 - y1)2) is a common formula to calculate the distance between two points.
This equation can be used to calculate the separation between any two locations on an x-y plane or coordinate plane.
So, we have the points:
(-2, 3) and (5, -3)
Distance formula: d=((x2 - x1)² + (y2 - y1)²)
Insert values and calculate as follows:
d=((5 - (-2))² + (-3 - 3)²)
d=((7)²+(-6)²)
d=√85
d=9.21
Therefore, the distance between the given 2 points (-2, 3) and (5, -3) is 9.21 units.
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What is 249 rounded to the nearest 10?
Answers
Answer: 250
Step-by-step explanation:
249 is closer to 250 than 240
Answer:
Step-by-step explanation:
249 is rounded to closest to 250
You deposit $2,000 in an account earning 3% interest compounded monthly.
a. How much will you have in the account in 20 years?
b. How much interest will you earn?
Answers
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$2000\\ r=rate\to 3\%\to \frac{3}{100}\dotfill &0.03\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{monthly, thus twelve} \end{array}\dotfill &12\\ t=years\dotfill &20 \end{cases}[/tex]
[tex]A = 2000\left(1+\frac{0.03}{12}\right)^{12\cdot 20}\implies A=2000(1.0025)^{240} \implies \boxed{A \approx 3641.51} \\\\\\ 3641.51~~ - ~~2000~~ \approx~~ \stackrel{earned~interest}{\boxed{1641.51}}[/tex]
16) Similar triangle 5
r
4
X
h
*) find y if h= 3
*) find X
find r
71
3
P
Answers
The values of the variables in the similar triangles are y = 2.25 units, x = 5 units and r = 3.75 units
How to find the variables in the similar triangles?Similar triangles are triangles that have the same shape, but possibly different size. Two triangles are similar if and only if their corresponding angles are congruent, that is, they have the same measure. When two triangles are similar, their corresponding side lengths are in proportion.
Since the triangles are similar. We write:
h/y = y/3
Since h = 3, we have:
3/4 = y/3
y = 9/4 = 2.25 units
x = √(4² + h²) (Pythagoras theorem)
x = √(4² + 3²) = 5 units
r = √(y² + 3²)
r = √(2.25² + 3²) = 3.75 units
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Lucas is selling 4 pears for $5.45. How much will 5 pears
cost?
Answers
Answer:
6.8125
Step-by-step explanation:
Represent Multiplication of
Whole Numbers by Fractions
raw a visual model to find the product.
2x
ME Critique Reasoning Barbara picked 36 apples. She
needs to put of the apples in a basket. Barbara says she
will put 12 apples in the basket. Is Barbara correct? HELP MEE
Answers
Barbara would choose the apples three times, so a visual model using Whole Numbers by Fractions would be created to determine the outcome. 2x
what is fraction ?A whole can be represented by any number of equal parts, or fractions. The number of units of a particular size is expressed as a fraction in standard English. 8, 3/4. Fractions are included in wholes. Numbers are expressed in mathematics as the ratio of the numerator to the denominator. In simple fractions, each of these is an integer. A complicated fraction contains a fraction in either the numerator or denominator. There is a difference between the numerators and denominators of true fractions. A sum that is a fraction of a whole is referred to as a fraction. You can evaluate it by dissecting the whole into smaller pieces. For example, 12 is used to represent one-half of a full number or item.
given
she is correct as Barbara picked 36 apples
in one time she put 12 apples in the basket
Barbara would choose the apples three times, so a visual model using Whole Numbers by Fractions would be created to determine the outcome. 2x
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Janie is a student in a science fair. Her project tracks how far a rumor can get spread throughout a school. Her data are represented by the following function:
f(x)=4(1+0.3)^1.5x
Rewrite the function to isolate x and solve for x = 8.
Answers
Janie is a student in a science fair. Her project tracks how far a rumor can get spread throughout a school.
f(x) = 8, x ≈ 8.
What is the function?Generally, To isolate x, we need to take the natural logarithm (ln) of both sides of the equation:
ln(f(x)) = ln(4) + 1.5xln(1 + 0.3)
then we can divide both sides by 1.5ln(1 + 0.3)
x = (ln(f(x)) - ln(4)) / (1.5ln(1 + 0.3))
To find x when f(x) = 8, we can substitute 8 for f(x) and solve for x:
x = (ln(8) - ln(4)) / (1.5ln(1 + 0.3))
x ≈ 8
Therefore, when f(x) = 8, x ≈ 8.
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A local bar and grill is having a quarter wing night during which chicken wings cost a quarter each.
As you leave home to join your friends there, all you grab is a $20 bill. Determine how many wings
you can purchase if you also want to buy a pitcher of your favorite beverage for $5 and ranch dip
for $1.50. There is also sales tax of 8.5%. You will leave a 20% tip on your bill after tax.
(enter number only)
Answers
Answer: Here is the calculation:
The cost of the wings is $0.25 per wing
The cost of the pitcher of beverage is $5
The cost of the ranch dip is $1.50
Sales tax is 8.5%, so you need to add 8.5/100 * (5+1.5) = 0.0825 to the cost of the beverage and dip.
The cost of the beverage and dip after tax is 5+1.5+0.0825 = 6.5825
The total cost of the wings, beverage, and dip before tip is 6.5825 + 20 = 26.5825
You need to leave a 20% tip, so you need to add 0.2*26.5825 =5.31650 to the total cost
The total cost of the wings, beverage, dip and tip is 26.5825+5.31650 = 31.899
So you have $20 and you want to spend $31.899 including tax and tip, you can purchase 20/0.25 = 80 chicken wings.
Step-by-step explanation:
Which table represents only values described by the relationship between t and w?
w = t + 11.2
Answers
The table of w = t + 11.2 is:
t w
0 11.2
1 12.2
2 13.2
3 14.2
4 15.2
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
w = t + 11.2
The table can be calculated as,
When t = 1, w = 1 + 11.2 = 12.2
When t = 2, w = 2 + 11.2 = 13.2
When t = 3, w = 3 + 11.2 = 14.2
When t = 4, w = 15.2
So on..
Thus,
t w
0 11.2
1 12.2
2 13.2
3 14.2
4 15.2
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An arithmetic sequence is defined by fn = 7 + 8(n – 1). What is the value of f1
Answers
Answer:
f(11) = 87
Step-by-step explanation:
substitute n = 11 into f(n) , that is
f(11) = 7 + 8(11 - 1) = 7 + 8(10) = 7 + 80 = 87
What is 3,879 rounded to nearest 100
Answers
Step-by-step explanation: Look at 3,879. The eight is in the hundreds place so the seven would tell it to round up or down. 5 or more means round up, so 8 would turn into 9. The other 2 numbers turn into zeros. Thus, 3,879 turns into 3,900.
Can you please help me i want to know the steps to solve this problem i dont want the answer so i can learn to do this on my own
Answers
Answer:
Hint: everything in that big [] is to the power of zero. anything to the power of zero is one. so
1+(6-8)=?
The distance between the points (5, -1) and (x, 2x + 5) is…
Answers
distance between two points is given by √ (5x² +14x +61)
What is distance?
Length between two points that is measured along any straight line or curve line.
What is the distance between above two points?
Assume two points p (x, y) and Q (a, b). The distance between P and Q is determined by a formula.
distance PQ = √ [(a -x) ²+ (b - y²]
We are given two points (5, -1) and (x, 2x+5)
the distance between two points = √[(x- 5)² + {(2x+5) - (-1)}²]
√[(x-5) ²+ (2x+5+1) ²]
= √[(x- 5)² + (2x+6)²]
hence, distance between two points = √ (5x² + 14x+61)
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W^2-7w+10 divided by w-5
Answers
Answer:
[tex] {w}^{2} - 7w + 10 = (w - 2) ( w- 5) \\ ( {w}^{2} - 7w + 10) \div (w - 5) = (w - 2)[/tex]
PLEASE HELP IM AWARDING HIGH POINTS
Answers
The polynomial [tex]-15\:y^4+12\:y^2-9\:y[/tex] as the sum of other polynomials. Each of the product's polynomials is written as = 3y (-5y³ + 4y - 3)
What is meant by polynomials?Using mathematical operations like addition, subtraction, multiplication, and division, a polynomial is an equation made up of variables, constants, and exponents (No division operation by a variable) Sums of terms with the pattern kxn where k is any positive integer and n is an arbitrary number are known as polynomials. A polynomial is something like 3x+2x-5. Polynomials: An introduction In this video, basic terms such terms, degrees, standard form, monomial, binomial, and trinomial are covered. The formulas that only contain addition, subtraction, multiplication, and non-negative integer exponents are those that can be used to identify the polynomials. The expressions with other operations will be non-polynomial expressions.Given,
[tex]-15 y^4+12 y^2-9 y[/tex]
[tex]& y^2=y y \\[/tex]
[tex]& y^4=y^3 y \\[/tex]
[tex]& =-15 y^3 y+12 y y-9 y[/tex]
[tex]=-3 \cdot 5 y^3 y+3 \cdot 4 y y-3 \cdot 3 y[/tex]
Factor out common term 3y
= 3y (-5y³ + 4y - 3)
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(9.42x10^4)(6.45x10^2)
Simplify using a scientific calculator.
Write each answer in scientific notation.
Sone help me understand how to do this
Answers
60.759×10⁶ is the value of the expression (9.42×10⁴)(6.45×10²).
What is Expression?An expression is combination of variables, numbers and operators.
The given expression is (9.42×10⁴)(6.45×10²)
We have to find the value of the expression.
9.42×6.45×10²×10⁴
60.759×10²×10⁴
Bases are same then the powers will be added.
60.759×10⁶
Hence, 60.759×10⁶ is the value of the expression (9.42×10⁴)(6.45×10²).
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help I can't do math :')
Answers
1.20C + 3 >= 13.50
Where C is the number of chores Janie does.
On the left side of the inequality, 1.20C represents the amount of money Janie earns from doing chores, and 3 represents the amount of money she already has. The inequality states that the sum of the money she earns from doing chores and the money she already has must be greater than or equal to the cost of the CD (13.50).
This inequality can be simplified:
1.20C >= 10.50
C >= 8.75
Thus, Janie could do at least 8.75 chores to have enough money to buy the CD, since she can do fractions of chores.
Answer:
3 + 1.2 c > 13.50
Step-by-step explanation:
First of all, let's write an equation that gives us the income Janie gets for doing chores. As she earns 1.20 (I will omit the $ symbol for simplicity) for each chore c she makes we can write income depending on the amount of chores as:
income(c) = 1.2 c
If she does 1 chore she gets 1.2, if she does 4 chores she gets 4.8 and so on for any c (obviously c is positive as she can do negative chores).
So, her total money will be the sum of what she earns for chores and the money she already has: 3.
money (c) = 3 + 1.2 c
If she does 2 chores she has 3+2.4=5.4 and so on for any c.
Now we need her money to be greater or equal to 13.50 in order to buy the CD. The inequality is:
money (c) > 13.50
3 + 1.2 c > 13.50
We can go further and solve it. First lets subtract 3 in both sides:
12 c > 10.50
Now, divide both sides by 1.2:
c > 10.50 / 1.2
c > 8.75
So, she needs at least 8.75 chores to earn enough money to buy the CD. As she can do fractions of chores the answer is 8.75 chores. Is she couldn't do fractions she would need at least 9 chores.
A diamond speculator used the line with equation
y = 5000x250 to estimate the price of diamond
rings.
5) What would the speculator predict fot he price of the
0.29-carat diamond ring?
6) What would the speculator predict fot he price of the
0.21 -carat diamond ring?
Answers
A speculator estimates that the price of the 0.29 carat diamond ring will be y = 1200 by y = 5000x - 250.
what is equation ?An equation is a mathematical formula that connects two assertions using the equal sign (=) to denote equivalence. In algebra, an equation is a mathematical statement that establishes the equality of two mathematical expressions. For instance, an equal sign separates the components 3x + 5 and 14 in the equation 3x + 5 = 14. A mathematical formula is used to express the connection between two phrases on either side of a letter. Frequently, there is just one variable, which is also the symbol. for example, 2x - 4 = 2.
given
y = 5000x - 250
y = 5000 * 0.29 - 250
y = 1200
A speculator estimates that the price of the 0.29 carat diamond ring will be y = 1200 by y = 5000x - 250.
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You plant a rectangular garden that is 7 1⁄2' wide and has an area of 78.75 square ' you have 10 yd of wire fencing do you have enough wire fencing to enclosed the garden?
Answers
Someone has no enough wire fencing to enclose the rectangular garden.
Does someone have enough wire fencing to enclose the garden?
Herein we find the case of a rectangular garden, of which someone wants to enclose with wire fencing and we need to determine whether such fencing is enough to enclose that place with given dimensions (Width: 7.5 feet, area: 78.75 square feet).
The area of the rectangular garden is described by following formula:
A = w · l
Where:
w - Width, in feet.l - Length, in feet.First, determine the length of the rectangular garden:
l = A / w
l = 78.75 / 7.5
l = 10.5 ft
Second, calculate the perimeter of the rectangular garden:
p = 2 · (w + l)
p = 2 · (7.5 ft + 10.5 ft)
p = 36 ft
Thrid, determine if the fencing wire is enough to enclose the garden: (1 yard - 3 feet)
l = 36 ft × 1 yd / 3 ft
l = 12 ft
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Find the length of the indicated side.
3/2X+6 =2/5x+9
The length of side AB is
Answers
If the equation be 3/2X+6 =2/5x+9 then the length of side AB is -15/11.
What is meant by equation?The definition of an equation in algebra is a mathematical statement that proves two mathematical expressions are equal. Two expressions joined by an equal sign form a mathematical statement known as an equation.
A condition on a variable (or variables) is a pair of expressions in the variable (or variables) that have the same value. The solution, also known as the root of the equation, is the quantity for which the equation holds true. Even if the LHS and RHS are switched, an equation still holds true.
Let the equation be 3/2X + 6 = 2/5x + 9
simplifying the equation, we get
15x + 27 = 4x + 12
15x = 4x - 15
11x = -15
Divide both sides by 11, we get
[tex]$\frac{11 x}{11}=\frac{-15}{11}$$[/tex]
[tex]$x=-\frac{15}{11}$$[/tex]
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In a random sample of 8 customers, what is the probability that exactly 4 of them will use the Self-Checkout?
In the box below, give your answer correct to 3 significant figures. If you are correct, you will receive a CORRECT message here.
Answers
The binomial probability that exactly 4 out of 8 customers will use the Self-Checkout is 0.008.
What is binomial probability?Binomial probability is the probability based on the binomial distribution.
The binomial distribution is used in statistics to summarize the likelihood that a value will take one of two independent values (for example, success or failure) under a given set of parameters or assumptions.
The binomial distribution formula is:
Pₓ = {ⁿ \ ₓ} pˣ qⁿ ⁻ ˣ
P = binomial probability
x = number of times for a specific outcome within n trials
{ⁿ \ ₓ} = number of combinations
p = probability of success on a single trial
q = probability of failure on a single trial
n = number of trials
Random sample, n = 8
Specific outcome within n trials = 4
pˣ = 0.5⁴
= 0.0625
qⁿ = (1 - 0.5)⁸ ⁻ ⁴
= 0.5⁴
= 0.0625
Pₓ = {ⁿ \ ₓ} pˣ qⁿ ⁻ ˣ
= 8/4 x 0.0625 x 0.0625
= 2 x 0.0625 x 0.0625
= 0.0078125
= 0.008
Thus, the probability of precisely 4 customers using the Self-Checkout is 0.008.
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