The zeros of a quadratic function are -7 and 3. Which of the following could be the function? Select all that apply.
A. F(x)=2x^2-8x-42
B. F(x)=5x^2+20x-105
C. F(x)=x^2+4x-21
D. F(x)=x^2-4x-21

Answers

Answer 1

Answer:

B and C

Step-by-step explanation:


Related Questions

17 cm
17 cm
8 cm
3 What is the surface area of the triangular
prism shown?
A 1,430 cm?
B 2,360 cm?
35 cm
C 2,480 cm?
D 4,200 cm
I

Answers

D ststjdkgdgk dhdgkdlydky

Find the area of this shape

Answers

Answer:

433 m²

Step-by-step explanation:

Find the side length of the square first.

Apply Pythagoras Theorem on 1 of the triangles on the right, to find its remaining side.

[tex] \sqrt{ {12}^{2} - {9.6}^{2} } [/tex]

=[tex] \sqrt{51.84} [/tex]

= 7.2 m

Therefore the side of the square is

7.2 ×2

= 14.4 m

The area of the square

= 14.4²

= 207.36 m²

You are able to find the area if of the 2 triangles.

(7.2 × 9.6)÷2 ×2

= 69.12 m²

The height of the pentagon

= 25.4 - 7.2

= 18.2 m

The area of the pentagon

= (10+7.2) × 18.2 ÷ 2

= 156.52 m²

Add up the areas of the 3 polygons.

The area of the shape

= 207.36 + 69.12 + 156.52

= 433 m²

4(x+15) = 2(2x+25) has how many solutions?

Answers

Answer: There are no solutions.

Step-by-step explanation: Hope this help :D

3. A big league pitching coach tries to limit his pitchers to 110 pitches per game. If the pitcher has
already thrown 52 pitches, write and solve an inequality to find how many more pitches he can
throw before reaching the limit. *
Type your inequality AND your answer as a sentence.

Answers

110 minus 52 is 58 so the answer would be 58 more pitches

analia wants to know which school has higher athletic achievement relative to the budget per student

Answers

Answer:

SAT average divided by budget per student

Graduation rate divided by budget per student

No. The definitions have opposite results.

Step-by-step explanation:

DID IT ON KHAN and

The key understanding here is that there isn't a single way to define "academic achievement." Graduation rate can be a good measure of that. Average SAT is also a good measure. The rate of students who are accepted into college can also be a good measure, but we are not given information about that.

Now let's go over the options and see which of them might be used to describe "academic achievements relative to the budget per student."

Hint #22 / 4

Definition Analysis Appropriate?

SAT average divided by budget per student "SAT average" is a measure of academic achievement. Dividing this by the budget per student gives us a good definition.

Yes

Yesstart color #1fab54, start text, Y, e, s, end text, end color #1fab54

Graduation rate divided by budget per student "Graduation rate" is a measure of academic achievement. Dividing this by the budget per student gives us a good definition.

Yes

Yesstart color #1fab54, start text, Y, e, s, end text, end color #1fab54

Number of sports medals won divided by budget per student "Number of sports medals won" isn't a measure of academic achievement.

No

Nostart color #e84d39, start text, N, o, end text, end color #e84d39

Graduation rate divided by number of sports medals won "Graduation rate" is a measure of academic achievement, but it's divided by the number of sports medals won, and not by the budget per student.

No

Nostart color #e84d39, start text, N, o, end text, end color #e84d39

Hint #33 / 4

We are left with two definitions for academic achievements relative to the budget per student:

SAT average divided by budget per student

Graduation rate divided by budget per student

Let's calculate the academic achievements relative to the budget per student for each school according to each definition:

School Definition #1 Definition #2

A

0.114

student points

dollar

≈0.114

dollar

student points

approximately equals, 0, point, 114, start fraction, start text, s, t, u, d, e, n, t, space, p, o, i, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

0.0082

student percents

dollar

≈0.0082

dollar

student percents

approximately equals, 0, point, 0082, start fraction, start text, s, t, u, d, e, n, t, space, p, e, r, c, e, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

B

0.105

student points

dollar

0.105

dollar

student points

0, point, 105, start fraction, start text, s, t, u, d, e, n, t, space, p, o, i, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

0.009

student percents

dollar

0.009

dollar

student percents

0, point, 009, start fraction, start text, s, t, u, d, e, n, t, space, p, e, r, c, e, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

Which school has higher academic achievements relative to the budget per student? School A School B

[Show me the calculations used for this table.]

Hint #44 / 4

In conclusion:

1) These are the two definitions Analia came up with to define the quantity:

SAT average divided by budget per student

Graduation rate divided by budget per student

2) The definitions have opposite results.

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True or False? When finding the average rate of change if an exponential function, the interval [3, 5] means we want to use the points when x = 3 and when y = 5.

Answers

Answer:

yes

Step-by-step explanation:

What are two partial products you would add to find 21 x 509?​

Answers

45 and 63.9 I believe

The mean age of 5 people in a room is 33 years. A person enters the room. The mean age is now 37. What is the age of the person who entered the room?

Answers

Mean is the average,

The total ages with 5 people would be 5 x 33 = 165

the total ages with the 6th person is 6 x 37 = 222

The age of the 6th person is 222 - 165 = 57 years old.

Which answer choice shows that the commutative property does not hold for matrix multiplication?

Answers

Given:

The matrix statements in the options.

To find:

The answer choice that show the commutative property does not hold for matrix multiplication.

Solution:

We known that matrix multiplication is not commutative. if A and B are two non-zero matrices, then

[tex]AB\neq BA[/tex]

Let us assume,

[tex]A=\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}\text{ and }B=\begin{bmatrix}1&3\\8&5\end{bmatrix}[/tex]

According to the above property of the matrix, we get

[tex]\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}\begin{bmatrix}1&3\\8&5\end{bmatrix}\neq \begin{bmatrix}1&3\\8&5\end{bmatrix}\begin{bmatrix}-1&-8\\-3&-5\end{bmatrix}[/tex]

Therefore, the correct option is B.

this is your correct answer

After taxes, Olive brings home $2800 per month. She has decided that she would like to set aside 15% of her income for savings. How much will Olive save each month?

Answers

Answer:

420

Step-by-step explanation:

15%= 0.15

2800*0.15= 420

Help pleas I need help

Answers

Answer:

3.05

Step-by-step explanation:

Answer:

3 3/4 inches

Step-by-step explanation:

Peyton is going to invest $71,000 and leave it in an account for 18 years. Assuming the interest is compounded continuously, what interest rate, to the nearest hundredth of a percent, would be required in order for Peyton to end up with $106,000?

Answers

Answer:

2.23

Step-by-step explanation:

what is the correct form of the partial fraction decomposition for: start fraction 35-27x over 4xsquared+28x endfraction

Answers

Answer: The answer is A

Step-by-step explanation:

A/4x+B/x+7

The correct form of the partial fraction decomposition for the given expression is Option A

What is Partial Fraction Decomposition ?

Partial Fraction Decomposition is the method of simplifying rational expressions.

The expression given is

[tex]\rm \dfrac{ 35-27x} { 4x^2+28x}[/tex]

Applying Partial Decomposition

[tex]\rm \rm \dfrac{ 35-27x} { 4x(x+7)}\\\\\\\dfrac{35}{4x(x+7)} - \dfrac{27x}{4x(x+7)}\\\\\\Taking \;A = 35/ x+7\\\\Taking \; B = -27/4\\\\[/tex]

It can be written as

[tex]\rm \dfrac{A}{4x} + \dfrac{B}{x+7}[/tex]

Therefore Option A is the answer.

To know more about Partial Factor Decomposition

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The height of a penny t seconds after being dropped down a well is given by the product
of (10 - 3t) and (10+ 31). Find the product and simplify.

Answers

t equals 3.3333 repeating

A bank charge 5.25672% annual percentage rate on a home mortgage . What is this number rounded to the nearest tenth ?

A.5.1
B.5.25
C.5.3
D.6

Answers

Answer:

C. 5.3

step by step explanation:

Answer:

C. 5.3

Step-by-step explanation:

Calculating permutations can be used in all of following except _____.

seating arrangements at a wedding
survey results
assisting computer programmers
placing items into a display

Answers

Answer:

Option C,  

Calculating permutations can be used in all of following except assisting computer programmers

Step-by-step explanation:

Permutations is basically used in cases where there is some sort of patterning involved in it.

In case of seating arrangements at a wedding, survey and placing items into a display some kind of pattern will be followed.

Hence, option C

Answer:

survey results

Step-by-step explanation:

I got it right

What is the probability that you will roll a dice and get 3, then get an ace from a deck, then (without replacing the other card) draw a black 2?

Answers

Answer:

que pasa parsero deja de esta mostrando el manda aquí vale

A broker charges 70 per square foot to install windows how much does it cost to install the windows shown

Answers

XjsikJvenrmbrvr d vetch tmtvtntbrxctvy ft rvrnhwksixucjmevectvtggt

Shen paid $14.98 for a 7.26 KG bag of dog food. A few weeks later he paid $17.54 or 7.94 kg bag. Find the unit price for each bag.

Answers

Answer:

1. Shen payed around $2.06 for the first bag of dog food.

2. Shen payed around $2.21 for the second bag of dog food.

Step-by-step explanation:

First, you have to do 14.98/7.26 to get around 2.06

Then, you do 17.54/7.94 to get around 2.21

Hope this helps!

Jamie wants to make an 80, or B, test average in her class. She scored 75 and 82 on her last 2 tests. What is the lowest grade she can make on her last test to finish with an 80 test average?

Answers

Answer:

Its probably too late now but the answer is 83

Step-by-step explanation:

83 is the lowest grade she can make on her last test to finish with an 80 test average.

What is Probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Given that Jamie wants to make an 80, or B, test average in her class.

She scored 75 and 82 on her last 2 tests.

we need to find the  lowest grade she can make on her last test to finish with an 80 test average

Let x be the e  lowest grade she can make on her last test to finish with an 80 test average

75+82+x/3=80

157+x=240

Subtract 157 from both sides

x=83

Hence, 83 is the  lowest grade she can make on her last test to finish with an 80 test average.

To learn more on probability click:

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explain how urea is formed in the body​

Answers

Step-by-step explanation:

the nitrogen in the amino acid become converted to ammonia and this is further converted by the live into urea,which is less toxic than ammonia to the body.The kidneys will then filter theuera from the circulation,send it to the bladder along with water and excrete it form of urine.

2. The fabric wall hanging has an area of
112 square feet. The width is 8 feet.
What is the length?

Answers

Answer:

length = 14 feet

Step-by-step explanation:

112/8 = 14 feet

Answer:

14

Step-by-step explanation:

well we already can tell the no number under 10 will be eligible

so lets keep going

11, no it would only make 88,

12=96

13=104

14=112

the answer is 14

A peanut butter cookie recipe calls for 3 1/2 cups of flour to make 6 dozen cookies. How many cups of flour must be used to make 20

Answers

Complete Question

A peanut butter cookie recipe calls for 3 1/2 cups of flour to make 6 dozen cookies. How many cups of flour must be used to make 20 dozen?

Answer:

11 2/3 cups of flour

Step-by-step explanation:

From the above question:

6 dozen = 3 1/2 cups of flour

20 dozen = x

Cross Multiply

6 dozen × x = 20 dozen × 3 1/2 cups of flour

x = 20 dozen × 3 1/2 cups of flour/6 dozen

x = 20 × 7/2 /6

x = 140/2 ÷ 6

x = 140/2 × 1/6

x = 140/12 cups of flour

x = 11 8/12

= 11 2/3 cups of flour

Therefore, 11 2/3 cups of flour must be used to make 20 dozen.

Question 11
2, 10, 50, ...

plz help me out! ​

Answers

Answer:

250

Step-by-step explanation:

Every number is multiplied by 5

2 x 5 = 10

10 x 5 = 50

50 x 5 = 250

Please help! I need this aS-0

Answers

Answer:

6.

18+18 = 36

hence

x = 16

7.

x = 7 × 2

x = 14

in the figure below, <1 measures (3x+20) and <2 measures x. what is the measure of <4?

Answers

Answer:

D. 140

Step-by-step explanation:

∠ 1 + ∠ 2 = 180

So:

(3x + 20) + x = 180

4x + 20 = 180

4x = 180 - 20

4x = 160

x = 160 / 4

x = 40

∠ 1 = ∠ 4

∠ 2 = ∠ 3

If ∠ 1 is equal to ∠ 4, just plug in for x and solve.

3x + 20 = 3(40) + 20 = 120 + 20 = 140

Eric knows that 5 out of every 75 children in his school have red hair. There are 525 children in Eric's school. How many children in Eric's school have red hair?​

Answers

Answer:

35

Step-by-step explanation:

525/75=7x5=35

The ratio remains constant, then the number of children in Eric's school who has red hair in color will be 35.

What are ratio and proportion?

A ratio is an ordered couple of numbers a and b, written as a/b where b can not equal 0. A proportion is an equation in which two ratios are set equal to each other.

Eric knows that 5 out of every 75 children in his school have red hair. There are 525 children in Eric's school.

Then the number of the children in Eric's school who has red hair will be

Let x be the number of the children. Then we have

[tex]\rm \dfrac{x}{525} = \dfrac{5}{75}\\\\x \ \ \ = \dfrac{525 \times 5}{75}\\\\x \ \ \ = 35[/tex]

More about the ratio and the proportion link is given below.

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What is the volume of the prisim?
This prism measures 3 units by 4 units by 2 units.

Answers

Answer:

24

Step-by-step explanation:

3*4*2=24

The answer is 24
3*4*2=24

Find the value of x. Round your answer to the nearest tenth.
15
27

Answers

The value of the perpendicular x will be 7.64 units.

What is trigonometry?

The connection between the lengths and angles of a triangular shape is the subject of trigonometry.

Then the tangent of an angle is the ratio of the perpendicular and the base of the right-angle triangle.

tan θ = P / B

Then we have

tan 27° = x / 15

         x = 7.64 units

More about the trigonometry link is given below.

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A company that sells yoga mats estimates its annual profit using the equation below, where x represents the wholesale price in dollars of 1 yoga mat, and P = annual profit in thousands of dollars.
P = 10x? - 280x + 1,600 When the expression on the right side of this equation is factored completely, which best describes the meaning of the factors?
The annual profit is zero at a wholesale price of $80 and zero at a wholesale price of $200.
The annual profit is zero at a wholesale price of $8 and maximized at a wholesale price of $20.
The annual profit is zero at a wholesale price of $80 and maximized at a wholesale price of $200.
The annual profit is zero at a wholesale price of $8 and zero at a wholesale price of $20.

Answers

Answer: (d)

Step-by-step explanation:

Given

Annual profit is given by

[tex]P=10x^2-280x+1600[/tex]

When it is factored then,

[tex]\Rightarrow 10x^2-280x+1600=0\\\Rightarrow 10\left( x^2-28x+160\right)=0\\\Rightarrow x^2-20x-8x+160=0\\\Rightarrow x(x-20)-8(x-20)=0\\\Rightarrow (x-8)(x-20)=0\\\Rightarrow x=8,20[/tex]

On factorization, we get that annual profit is zero at a whole prize of $8 and $20.

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