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muminat
2 years ago
9

Identify the inverse of f(x)=x^2-9

Mathematics
1 answer:
Reika [66]2 years ago
7 0
A
x=y^2-9
x+9=y^2
square root both sides
+-sqrt(x+9)
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If AABC is reflected across the yaxis, what are the coordinates of A?
Airida [17]

Answer:

A lies on (1,3) a reflection across the y-axis is (x,y) to (-x,y). The x turns the opposite and y stays the same so...

(-1,3)

5 0
3 years ago
Triangle abc is similar to triangle qrs. what is the length of rq
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3 years ago
Madison created two functions.
Degger [83]
Madison created two functions.For Function A, the value of y is two less than four times the value of x. 

The table below represents Function B.
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1,-1
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A.

Function A and Function B have the same rate of change.
B.

Function A has a greater rate of change than Function B has.
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3 0
3 years ago
Read 2 more answers
HELP MATH GRAPHS AND RULE SOMETHING LIKE THAT
Bess [88]
I dont know math well but try to look it up
4 0
3 years ago
Marvin used the money he received from
Kay [80]

Answer:

<em>Correct choice: C. $320</em>

Step-by-step explanation:

<u>Simple Interest</u>

Definition: Interest calculated on the original principal only of a loan or on the balance of an account.

Unlike compound interest where the interest earned in the compounding periods is added to the new principal, simple interest only considers the principal to calculate the interest.

The interest earned is calculated as follows:

I=P.r.t

Where:

I = Interest

P = initial principal balance

r = interest rate

t = time

Marving is saving money in a savings account with a simple interest rate of r=7.5%=0.075. It's known that after t=12 years, the account had earned $288 interest. Substituting in the formula:

288 = P*0.075*12

Calculating:

288 = 0.9P

Dividing by 0.9:

P = $320

Correct choice: C. $320

7 0
3 years ago
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