Mathematics High School

Which of these is the standard form of the following function?

f(x) = -9(x + 5)2 + 4


f(x) = 9x2 − 90x − 221

f(x) = -9x2 − 90x − 221

f(x) = 9x2 − 180x + 221

f(x) = -9x2 − 180x − 221

Answers

Answer 1

Answer:

We conclude that the  standard form of the given function is:

[tex]f(x)=-9x^2-90x-221[/tex]

Hence, option B is correct.

Step-by-step explanation:

We know that the standard form of the quadratic function is of the form

[tex]f\left(x\right)\:=\:ax^2\:+\:bx\:+\:c[/tex]

Given the function

[tex]f(x)=-9\left(x\:+\:5\right)^2\:+\:4[/tex]

as (x+5)² = x² + 10x + 25

[tex]f(x)=-9\left(x^2+10x+25\right)+4[/tex]

Expanding  -9(x² + 10x + 25) = -9x² - 90x - 225

[tex]f\left(x\right)\:=-9x^2-90x-225+4[/tex]

simplifying

[tex]f(x)=-9x^2-90x-221[/tex]

Therefore, we conclude that the  standard form of the given function is:

[tex]f(x)=-9x^2-90x-221[/tex]

Hence, option B is correct.

Answer 2

Answer:

Hope this helps!

Step-by-step explanation:

Which Of These Is The Standard Form Of The Following Function?f(x) = -9(x + 5)2 + 4f(x) = 9x2 90x 221f(x)

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100 POINTS. HELP ASAP !!! PLEASE PLEASE

Answers

Answer:

task 1 answer is 14

HELP MEHHHH DUE TODAY!!!
1. Explain the difference between using the cosine ratio to solve for a missing angle in a right triangle versus using the secant ratio. You must use complete sentences and any evidence needed (such as an example) to prove your point of view. (10 points)

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Answer:

number 1 is 60 number 2 is 9750

Step-by-step explanation:

dont delete

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-3x -2y = 4

Answers

Answer:

(4, -8) or x=4 y=-8

Step-by-step explanation:

Answer: x=4 and y=−8

Step-by-step explanation: 7x+2y=12, −3x−2y=4

7x+2y+−2y=12+−2y

7x /7 = −2y+12 /7

x= −2 /7 y+ 12 /7

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Find the perimeter of an isosceles triangle. base edge = 23cm and vertex angle = 42°

Answers

I think answer should be 20 I think I’m not 100 percent sure so please give me brainlest let me know if it’s correct or not okay thanks bye bye

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Answers

I’m not sure but I hope yu get the right help

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Answers

a/7 + a/3 = 10
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Answer:

[tex] \frac{a}{7} + \frac{a}{3} = 10 \\ \frac{(3a + 7a)}{21} = 10 \\ \frac{10a}{21} = 10 \\ a = \frac{(10 \times 21)}{10} \\ \boxed{a = 21}[/tex]

a=21 is the right answer.

Sara and Fiona have played 53 tennis matches.

Sara has won 29 times.

Fiona won the rest.

a) Estimate the probability that Sara wins.

b) Estimate the probability that Fiona wins.

Answers

It is B I took the test

Answer: Sara = 29/53

Fiona = 24/53

Step-by-step explanation: because that amount is how much they have won and how much its out of so for example ‘i played 26 games i only won 17 and John won the rest’ the probability that i win is

17/26 and Johns would be 9/26

Y’all, lord have mercy
How am I in highschool, yet I don’t know how to solve this without a calculator

Answers

Answer:

4

Step-by-step explanation:

Answer:

Answer of this qn is. 4 hope it help s

a shipwreck lies 125 below sea level

Answers

Answer:

-125

Step-by-step explanation:

solve the following system by substitution y=5x-4 y=6x​

Answers

Answer:

Step-by-step explanation:

y = 5x - 4

y = 6x $\Rightarrow$ x = y/6

y = 5*y/6 - 4

y = 5y/6 - 4

6y = 5y - 24

y = -24.

So, x = -4

To find the quo 2/5 divided 1/4.

Answers

Answer:

A. Multiply 2/5 by 4

Step-by-step explanation:

Because when you dividend fraction

1,write the reciprocal of the second fraction number and multiply with the first fraction number

2,multiply the numerators and denominators of both fraction..

the reciprocal of 1/4 is 4/1 =4so the answer is 2/4 by4

Answer:

Step-by-step explanation:

Ghhhhhjhhbhhhhu

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Answers

Answer:

honestly I think its QT

Step-by-step explanation:

hope it helps

Mr. Worthington thinks that 3 + 5 is a binomial. What
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I

Answers

Answer:

3 + 5 = 8 which is a monomial

Step-by-step explanation:

a binomial has 2 terms; example, 3y + 5

I need help pls I’m taking a test and I don’t know what to do.

Answers

B I think this needs to be longer answer but b

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Answers

Answer:

(2x + 5) (x-4)=0

Step-by-step explanation:

PLEASE ASAP! Answer the questions to compare the mean number of deliveries for the three companies.
1. How many drivers did company C use in its sample?
2. What is the MAD for company C's data? Show your work.
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Answers

Answer:

1 is 20 or 10 2 is 2 3 is b 4 is 2

Step-by-step explanation:

Answer:

1 is 20 or 10 2 is 2 3 is b 4 is 2

Step-by-step explanation:

Plzzzzzxxzxz hellppppp meeeeeee

Answers

Answer:

[tex]\frac{1}{64}[/tex]

Step-by-step explanation:

(1/8)^2 is actually just (1/8)*(1/8)

We multiple the numerators, 1*1, to get 1,

And the denominators, 8*8, to get 64

So the anwser is (1/64)

Simplify the expression (6 + 2^2) - 4 x 3

Answers

Answer:

-2

Step-by-step explanation:

(6 + 2^2) - 4 x 3

6 + 2 * 2 - 4 x 3

6 + 4 - 12

10 - 12

-2

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Answers

----------------5

that's how it should look

Step-by-step explanation:

5 is more than x so x goes behind the 5

Answer/Step-by-step explanation:

                         X is any variable less than 5

<------------------------------------------------------o

I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I---I

-10 -9 -8 -7 -6 -5 -4 -3 -2 -1   0  1   2  3  4  5  6  7  8  9 10

Decide which item is the better purchase in the scenario below.
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Answers

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yes
no


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Answers

Answer:

No

Step-by-step explanation:

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I hope this helps, and have a great day! :D

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Answers

Answer:

y+3=-5(x-4)

Add 20 characters to explain the point

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Answers

Answer:

B: x = -12

Step-by-step explanation:

12 - (3 × 2)^2 + 4 × 3

Use PEMDAS, meaning solve what's in the parentheses first (P stands for parentheses)

12 - (6)^2 + 4 × 3

We get 6 because 3 × 2 = 6

Next step is solve any exponents (E for exponents)

12 - 36 + 4 × 3

We get 36 because 6 × 6 = 36 (the exponent was 2 meaning multiply the same number, 6, twice: 6 × 6)

Now we move on to multiplication and division (M for multiplication and D for division)

These are interchangable in that either can go first depending on its location in the equation

However, since there is no division in this problem we automatically skip to multiplication

12 - 36 + 12

We answered 12 because 4 × 3 = 12

Our last steps in PEMDAS are addition and subtraction (A for addition and S for subtraction)

These are also interchangable, but both are apparent in this problem

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-24 + 12

Now we add -24 + 12

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Answers

Answer:

b

Step-by-step explanation:

x = 2 in this situation, so plug in 2 for x.

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f(2) = (2 + 1)2

f(2) = (3)2

f(2) = 6

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Answers

Answer:

1/12

Step-by-step explanation:

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Answers

Answer:

Charles's reasoning is wrong.

Step-by-step explanation:

Lupita has 7 pounds for 16.8 and Charles has 5 pounds for 16.8.

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Answers

3x _> 3.0 - 2.4
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Answer:

A

Step-by-step explanation:

3x  ≥3.0 - 2.4

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Answers

Answer: it is called the base

Step-by-step explanation:

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Answers

Answer:

x = 8.0

Step-by-step explanation:

55/100 = 4.400/x x = 8.0

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Twelve students have bikes. 1/2 are black, 1/6 are silver, and the Rest of the bikes are other colors

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Silver?

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Answers

Answer:

Black: 1/2 * 12 = 6

Silver: 12 * 1/6 = 2

Other: 12 - 6 - 2 = 4

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