The sum of two terms are:
t₅, ₃ = 8t₁₁, ₂ = 13 t₁₅,₁₃ = 28.What is the sum about?The sum of two numbers is one that tells you to find the sum of two or more numbers, and as such, you have to add the numbers altogether.
t₅, ₃ = 5 + 3
= 8
t₁₁, ₂ = 11 + 2
= 13
t₁₅,₁₃ = 15 + 13
= 28.
Hence the correct sum of two terms are:
t₅, ₃ = 8t₁₁, ₂ = 13 t₁₅,₁₃ = 28.Learn more about sum from
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A distance runner is running an 18-mile race. so far, she has run 43% of the race.which would be the best way to estimate the number of miles the runner has run so far? best brainly
Estimation for the number of miles the runner has run so far is 7.74 mile
From the question, we have 2 infomation :
1. Total distance of running is 18 mile
2. Race completed so far is 43%
We can stated that 18 mile will be 100 %
0% ----------------------------------------------------------------------------------------> 100%
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
If she has run 43% of the race, it will be between 1 mile and 18 mile. We could simply multiply the total distance with total race completed to estimate total distance she has achieved.
So, the best way to estimate the total distance she has achieved is
Estimation = Total Distance x Total race completed
= 18 mile x 43%
= 7.74 mile
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What is the domain of the rational function f of x is equal to 3 x over the quantity 2 x cubed minus x squared minus 15 x end quantity (2 points)
x is an element of all real numbers such that x is not equal to 0 comma negative five halves comma 3
x is an element of all real numbers such that x is not equal to 0 comma five halves comma negative 3
x is an element of all real numbers such that x is not equal to negative five halves comma 3
x is an element of all real numbers such that x is not equal to 0
The domain of the given function would be all real numbers such that x is not equal to 0 comma negative five halves comma -3/2.
Option (A) is correct.
What is the domain of the function?
The domain of a function is the set of all input values (also known as the independent variable) for which the function produces a valid output (also known as the dependent variable). In other words, it is the set of all input values for which the function is defined.
The domain of the rational function f(x) = 3x/(2x^3 - x^2 - 15x) is all real numbers except for x = 0 and x = -3/2, -5/2 (the values that make the denominator equal to zero).
Hence, the domain of the given function would be all real numbers such that x is not equal to 0 comma negative five halves comma -3/2.
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Answer:
A
Step-by-step explanation:
2) An architect designed a house and must give more instructions to the builders. The rafters that
hold up the roof are equal in length. The rafters extend one foot beyond the supporting wall,
How long are the rafters (to the nearest inch)?
The value for the length of rafters is found using trigonometric function, and that is length = 43.38 inches.
What is trigonometric function?
Simply put, trigonometric functions also referred to as circular functions are the functions of a triangle's angle. This means that these trig functions provide the relationship between the angles and sides of a triangle.
The roof and the ceiling form two back-to-back right triangles .
It bisects the top angle so the top angle of the right triangle would be 35 degrees.
Half the width of 36 foot forms the lower side of the triangle - 36/2 = 18 inch.
The rafter (not counting the 1 foot overhang) is the hypotenuse, call it h.
We can use the sine trigonometric function to find the hypotenuse.
Sin θ = Opposite/Hypotenuse
Sin 35° = 18/h
0.573576 = 18/h
h = 18/0.573576
h = 31.38
Since, 1 foot = 12 inch rafter is extended then -
h = 31.38 + 12 = 32.38 foot
Therefore, the length of rafters is 43.38 inches.
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What is the difference between the absolute value of a real number and a complex number?
The absolute value of real number is 0 and the absolute value of complex number is z=a+bi.
So, the complete value of a complex number represents the distance between the starting and the point in the complex plane. On the other hand, the absolute value of a real number means only how far a number is from zero without all in all any direction.
A number system is a way of showing numbers by writing, which is a mathematical way of act for the numbers of a given set, by using the numbers or symbols in a mathematical means.
Both all the negative and positive integers, decimal and fractional numbers without imaginary numbers are called real numbers. Real numbers are act for by the “R” symbol.
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Can a negative number be a base?
Answer: Yes it can construct a negative base.
Step-by-step explanation:
A negative base (or a negative radix) each position holds multiples of the appropriate power of the system's base.
i need help to answer this question step by step thank you
The steps to bisect the line segment are as detailed below.
How to bisect a line segment?The steps to bisect a line segment are as follows;
Step 1: Place the compass at one end of line segment.
Step 2: Adjust the compass to slightly longer than half the line segment length
Step 3: Draw arcs above and below the line.
Step 4: Keeping the same compass width, draw arcs from other end of line.
Step 5: Place ruler where the arcs cross, and draw the line segment.
Looking at the given image that was used to bisect a line segment, the steps above are the steps that were taken to bisect it.
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Determine the values of h and k in the equation of g(x). g(x) = rootindex 3 startroot x minus h endroot k h = k =
h and k cannot be determined without knowing a value of g(x). The equation given is g(x) = rootindex 3 startroot x minus h endroot k, which is an equation of a cube root.
The equation provided is g(x) = rootindex 3 startroot x minus h endroot k. To determine the values of h and k, we need to know the value of g(x). Since no value of g(x) is provided, we cannot determine the values of h and k.
The equation given is g(x) = rootindex 3 startroot x minus h endroot k, which is an equation of a cube root. To find the values of h and k, we need to know the value of g(x). Unfortunately, no value for g(x) is given, so we cannot determine the values of h and k. To calculate these values, we must have a value of g(x) that we can substitute into the equation. Without this value, we cannot find the values of h and k.
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Bianca deposits $3,000
in a savings account earning 4.25%
simple interest per year.
How much interest will Bianca earn for a period of 3
years?
Bianca will earn interest of $382.5 for a period of 3years.
What is simple interest?Simple interest is a method to calculate the amount of interest charged on a sum at a given rate and for a given period of time. In simple interest, the principal amount is always the same.
Simple interest is calculated with the following formula:
S.I. = P × R × T,
where P = Principal, R = Rate of Interest in % per annum, and T = Time
Given,
Principal P = $3000
Rate of interest R = 4.25% = 4.25/100 = 0.0425
Time T = 3 years
Simple interest S.I. = P × R × T
= 3000 × 0.0425 × 3
= 127.5 × 3
S.I. = $382.5
Hence, Interest Bianca will earn in 3 years = $382.5
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20. Kyle is making a dessert that calls for cup of crushed cookies.
cup, how much more does he
If he has already crushed
need?
If he already had enough crushed cookies, Then he doesn't need any more i.e. zero needed.
What is the importance of zero?When we recognise how crucial zero is to computation and how it enabled mathematicians in earlier eras to solve more challenging problems, we can see how significant zero is. They were then able to research the fundamental characteristics of numbers and advance mathematics.
As the additive identity of integers and real numbers, zero's necessity in mathematics is significant. Algebraic structures also depend heavily on zero. The place value system needs the digit zero as a stand-in.
Fractions also help us understand the significance of zero in math. If it weren't for zero, we wouldn't be taught fractions in school. The absorbing zero also produced a better way to define fractions.
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Observational data that contains a numerical value or amount is called: __________
Observational data that contains a numerical value or amount is called quantitative observation.
Quantitative observation is an objective data gathering that is primarily concerned with numbers and values and is "related to, of or expressed in terms of a quantity." The outcomes of a quantitative observation are derived using statistical and numerical analytic techniques. Thus, quantitative observation refers to observational data that includes a numerical value or amount.
An objective gathering of facts, quantitative observation refers to "related to, of or depicted in terms of a quantity" and is generally focused on numbers and values. Methods of statistical and numerical analysis are used to derive the results of quantitative observation.
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Use a trigonometric ratio to solve for c. Round to two decimal places as necessary!!
HELP, and can someone explain how to get the answer?
Ion like math no more it’s breaking my heart
One of the important theorems in the field of geometry that deals with the properties of triangles are called the Mid- Point Theorem.
What is the midpoint theorem?The theory of midpoint theorem is used in coordinate geometry, stating that the midpoint of the line segment is an average of the endpoints. The ‘x’ and the ‘y’ coordinates must be known for solving an equation using this theorem. The Mid- Point Theorem is also useful in the fields of calculus and algebra.
Mid-Point Theorem Statement
The midpoint theorem states that “The line segment in a triangle joining the midpoint of any two sides of the triangle is said to be parallel to its third side and is also half of the length of the third side.”
Mid-Point Theorem Proof
If a line segment adjoins the mid-point of any two sides of a triangle, then the line segment is said to be parallel to the remaining third side and its measure will be half of the third side.
Consider the triangle ABC, as shown in the above figure,
Let E and D be the midpoints of the sides AC and AB. Then the line DE is said to be parallel to the side BC, whereas the side DE is half of the side BC; i.e., DE || BC
DE = (1/2 * BC).
Mid-Point Theorem Formula
In Coordinate Geometry, the midpoint theorem refers to the midpoint of the line segment. It defines the coordinate points of the midpoint of the line segment and can be found by taking the average of the coordinates of the given endpoints. The midpoint formula is used to determine the midpoint between the two given points.
If P1(x1, y1) and P2(x2, y2) are the coordinates of two given endpoints, then the midpoint formula is given as:
Midpoint = [(x1 + x2)/2, (y1 + y2)/2]
The converse of Mid-Point Theorem
The converse of the midpoint theorem states that ” if a line is drawn through the midpoint of one side of a triangle, and parallel to the other side, it bisects the third side”
Formula to Find the Midpoint
The Midpoint Formula is given as,
(x, y) = [(x1 + x2)/2, (y1 + y2)/2]
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What is a straight line called?
A straight line is a boundless one-dimensional figure that has no breadth. It is a combination of boundless points joined on both sides of a point. A straight line does not have any loop in it. If we draw an angle between any two points on a straight line, we always get 180°.
A straight line can be formed between two points but both ends extend to infinity. A straight line is a figure created when two points A ([tex]x_{1} , y_{1}[/tex]) and B ([tex]x_{2} , y_{2}[/tex],) are connected with the shortest distance between them, and the line ends are extended to infinity.
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Question 9
Hailey has $42 to spend on souvenirs for her friends. She would like to buy each of her friends a keychain that costs $6. The inequality
6k 42 represents the number of keychains k she could buy. What is the greatest number of keychains Hailey can buy?
keychains
Answer:
7
Step-by-step explanation:
42$ total ÷ 6$ per keychain = 7
7 is the most amount of keychains Hailey can buy.
After A leaves, B works alone. How many more days will B take to complete the work?
So B requires 8 more days to complete the work.
Lets assume total unit of work to be= 30units
A can finish the work in= 15 days
B can finish the work in= 10 days
A work efficiency can be calculated by formula
Efficiency= Total work/ Number of days
A efficiency= 30/15
30 divided by 15
A= 2
Similarly for B we can calculate its work efficiency
B efficiency= 30/10
30 divided by 10.
B= 3
A work for 3 days and leaves
work done by A = 2*3 = 6 unit
2 is A work Efficiency and we multiply by 3 that is number of days A worked on.
work done formula = Efficiency* Number of days
Now we calculate the remaining work
We subtract the total work by the work done by A
Remaining work= 30-6= 24 unit
so the days required by B is = Work Left divided by B efficiency
B days= 24/ 3 = 8
So B requires 8 more days to complete the work
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A can do a piece of work in 15 days and B alone can do it in 10 days. A works at it for 3 days and then leaves. After A leaves, B works alone. How many more days will B take to complete the work?
I NEED THIS ANSWER ASAP PLEASEEEEEE HALP MAH
Answer:
Step-by-step explanation:
Point O and N are midpoint of the ide of triangle DEF. What i DM? 22 cm 30 cm 38 cm 76 cm
The length of DM is 38 cm.
We know that,
Triangles DEF and OEN are similar by the AAA Similarity Postulate.
According to the Angle-Angle-Angle (AAA) criteria, "if in two triangles, corresponding angles are equal, then their corresponding sides are in the same ratio (or proportion), and hence the two triangles are identical."
If two triangles are similar, then the ratio of its corresponding sides is proportional,
Hence,
DE/OE = DF/ON
Substituting the values given,
44/22 = DF /38
DF = 2*38 = 74 cm
Since, DF = 2DM
76 = 2 DM
DM = 38 cm
Therefore, The length of DM is 38 cm.
(Refer to the image attached for the diagram of the triangle)
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HELP!
im having trouble
[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{(3^3)^2}[/tex]
[tex]\mathsf{= (3 \times 3 \times 3)^2}[/tex]
[tex]\mathsf{= (9 \times 3)^2}[/tex]
[tex]\mathsf{= (27)^2}[/tex]
[tex]\mathsf{= 27^2}[/tex]
[tex]\mathsf{= 27 \times 27}[/tex]
[tex]\mathsf{= 729}[/tex]
[tex]\huge\text{Therefore, your answer should be: }[/tex]
[tex]\huge\boxed{\mathsf{729}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
when carli kicked the soccer ball, it traveled a horizontal distance of 80 feet, and reached 30 feet at its highest point. write an equation to model the path of the soccer ball.
Answer:
The path of the soccer ball can be modeled by a parabolic equation, which can be represented as y = ax^2 + bx + c.
In this equation, y represents the height of the soccer ball, x represents the horizontal distance traveled, a represents the parabolic shape of the path, b represents the horizontal direction and c represents the initial position.
To find the equation that models the path of the soccer ball, you would need to know the values of a, b, and c. These values can be found using the information given in the problem, which is the horizontal distance traveled (80 feet) and the highest point reached (30 feet).
It can be represented as y = -(1/240)x^2 + (1/2)x + 30
In this equation, -(1/240) is the value of a, (1/2) is the value of b and 30 is the value of c.
Step-by-step explanation:
Noah and his friends are going on to an amusement park.The total cost of admission for 8 students is $100, and all students share the cost equally.Noah brought $13 for his ticket.Did he bring enough money to get into the park
Answer:
Yes, Noah brings enough money to get into the park
Step-by-step explanation:
First, we have to find how much each student pay by taking
$100 / 8 = $12.50 each student
We know Noah brought $13
$13 > $12.50
So, Noah brings enough money to get into the park.
What is the symbol of ordered pair?
The symbol for an ordered pair is a set of round or parentheses ( ) and it is written as (x,y), where x and y are the coordinates.
If x-5 3 = 2 then the value of x=
Answer:
X - 53=2
Or, x=2+53
Or, x=55
PLEASE! I NEED HELP WITH MY HOMEWORK!!!!
(GEOMETRY)
The right triangle in question 3 have the value of m = 10√2 and n = 10 using the trigonometric ratio of sine and cosine of the angle 45°.
What are trigonometric ratiosThe trigonometric ratios involves the relationship of an angle of a right-angled triangle to ratios of two side lengths. Basic trigonometric ratios includes; sine cosine and tangent.
Considering the angle 45° for the right triangle, recall that sin 45° and cos 45° are both equal to √2/2
sin 45° = 10/m {opposite/hypotenuse}
√2/2 = 10/m
m = 20/√2 {cross multiplication}
m = 20/√2 × √2/√2 {rationalize}
m = 20√2/2
m = 10√2
cos 45° = n/m {adjacent/hypotenuse}
√2/2 = n/10√2
n = 10(√2)²/2
n = 10 × 2/2
n = 10
Therefore, the value of m is equal to 10√2 and that of n is equal to 10, using the trigonometric ratio of sine and cosine of the angle 45° for the right triangle.
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Choose the best description of a joint probability.
The panels in a joint probability table include the kind of probabilities, with the exception of the cells on the table's margins, which carry marginal probabilities instead of joint probabilities.
The likelihood that two separate occurrences will occur simultaneously is referred to as a joint probability when there are two or more random variables. A joint probability is the likelihood that event Y will occur at the same time as event X. It is a statistical metric that determines the likelihood of two occurrences occurring simultaneously and at the same moment in time. When two or more random variables are represented as a joint probability distribution in a table, the link between the variables is demonstrated (it uses variables or conditions instead of events). The probabilities included in the cells of the joint probability table are joint probabilities, but the probabilities on the margins are marginal probabilities.
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Warm-Up
Identifying Shaded Regions
Analyze the linear inequalities and determine if the solution set is the shaded region above or below the boundary
line.
y> -1.4x+7
y> 3x-2
y<19-5x
y>-x-42
y<3x
y<-3.5x+2.8
(Solution Set Shaded Above)
(Solution Set Shaded Below)
The borderline if the linear inequality's symbol is > (greater than) or (greater than or equal to).
what is inequality ?In mathematics, an inequality is a connection that does not have an equal sign between two expressions or values. Inequality follows imbalance, therefore. When two numerical values are not equal, an inequality establishes a connection between them. Difference between equality and inequality Use the not equal symbol, which is most often used, when two values are not equal (). No matter how little or huge the values, various inequalities are employed to contrast them. The two sides can be changed until the variables are all that is left in order to solve several basic inequalities. Unevenness is caused by a number of factors, including: The sum or division of negative values on both sides. The left and right are exchanged.
given
inequality for y
5x – 2y ≤ 10
– 2y ≤ – 5x + 10
y ≥ 5/2x - 5
When dividing by a negative number, remember to switch the inequality sign.
In a linear inequality, you will shade below the boundary line if the sign is (less than) or (less than or equal to). The borderline if the linear inequality's symbol is > (greater than) or (greater than or equal to).
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2x+7y=1
y=4x−8
Is (4,8)(4,8)left parenthesis, 4, comma, 8, right parenthesis a solution of the system?
Choose 1 answer:
Answer:
(1,9;(-0,4))
Step-by-step explanation:
7(4x-8)+2x=1
28x-56+2x=1
28x+2x=1+56
30x=57|:30
x=1,9
y=4×1,9-8
y=-0,4
A mathematics teacher wanted to see the correlation between test scores and homework. The homework grade (x) and test grade (y) are given in the accompanying table. Write the linear regression equation that represents this set of data, rounding all coefficients to the nearest hundredth. Using this equation, estimate the homework grade, to the nearest integer, for a student with a test grade of 50.
The linear regression equation models is y = 1.20x - 14.32
The homework grade for a student with a test grade of 50 is 54.
What is regression line?An estimate of the line that depicts the actual, but unidentified, linear relationship between the two variables is called a regression line. When the value of the explanatory variable is known, the regression line's equation is used to predict (or estimate) the value of the response variable.
As, linear regression calculator which gives the linear equation in the form :
y = bx + c
y = 1.20x - 14.32
where y = Test grade and x = homework grade
Also, Slope, b = 1.20, intercept, c = - 14.32
So, Using the model equation we have Test grade, y =
y = 1.20x - 14.32
50 = 1.20x - 14.32
50 + 14.32 = 1.20x
64.32 = 1.20x
x = (64.32 ÷ 1.20)
x = 53.6
Hence, the estimated homework grade for a test score of 50 is 54.
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I need help with this problem please and thank you
Answer:
x=25
Step-by-step explanation:
Vertical angles are congruent
37+45=82
180-82=98
Liner pairs=180
82+123=155
180-155=25
x=25
What is the domain of the function y=³√x-1?
Answer:
x - 1 is inside a cubic root.
The cubic root of a positive number is positive.
The cubic root of zero is zero.
The cubic root of a negative number is negative.
That means that the cubic root of any real number is also a real number.
The domain is all real numbers.
The side length of a cube
can be represented
by the expression 2x5. If the side length is
doubled, write an
expression to represent the
new volume of the cube.
Answer: 2x5=10 if it was doubled its 20 but wouldnt this be a measure of size and not of volume we would have to see all measurments for this, put 20 down and see if that works.
Step-by-step explanation: i have f's in all of my classes so dont trust me. lol