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Norma-Jean [14]

3 years ago

6

Alexis says she is thinking about a number whose absolute value is 19. What are the possible numbers she could be thinking of?(

on a number line - 30 to 30)

1 answer:

Tasya [4]3 years ago

3 0

Answer:

jhzbsbsbbsgsbsb

Step-by-step explanation:

uy3hsbbzgauajdbgaushsbs

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2.<br> Which of the functions below is an inverse of the quadratic function f(x) = x2 - 3 ?

mezya [45]

Answer:

the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

Step-by-step explanation:

We need to find inverse of the quadratic function $f(x) = x^2 - 3$

Let

$y=x^2-3$

Replace x and y

$x=y^2-3$

Now, we will solve for y

Adding 3 on both sides

$x+3=y^2-3+3$

$x+3=y^2$

Taking square root on both sides

$\sqrt{y^2}=\sqrt{x+3}\\y=\pm \sqrt{x+3}$

Now replace y with $f^{-1}(x)$

$f^{-1}(x)=\pm \sqrt{x+3}$

So, the inverse of the quadratic function $f(x) = x^2 - 3$ is $\mathbf{f^{-1}(x)=\pm \sqrt{x+3}}$

3 0

3 years ago

Charlie wants a new pair of shoes that cost $40 his mom paid 75% of the cost and Charlie pays 25% how much did each pay

swat32

His mom paid 30 and he paid 10 I did 40÷4 the got 10 then times by how many 25% each had

8 0

3 years ago

4+2×1+3? How do u solve this please?

Bad White [126]

Answer:

7

Step-by-step explanation:

PEMDAS multiply 2 times 1 then add 4 and 3

7 0

3 years ago

Read 2 more answers

Hello friends, I'm from brainly Indonesia. Here I just want to walk :v

borishaifa [10]

Answer:

7⁴ IS 28

I HOPE IT IS HELPFUL

5 0

3 years ago

Read 2 more answers

What is 23+90-12+13x80

lbvjy [14]

Answer:

1141

Step-by-step explanation:

The order of operations requires multiplication to be done before addition or subtraction, so we calculate 13x80 first (1040). then, we can add 23 to 90 to get 113, subtract 12 to get 101, and finally add 101 to 1040 to get 1141.

4 0

3 years ago

Read 2 more answers