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3 years ago

Question num1 can i get am answer

Mathematics

1 answer:

Firlakuza [10]3 years ago

5 0

Answer: 8 or 2

Step-by-step explanation:

(x-5)^2=9

First square both sides to get rid of the power

(X-5)=3

Now add 5 to 3

X=8

Rearranging

(5-x)=3

Subtract 5 from 3=-2

-x=-2

X=2

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Step-by-step explanation:

3 0

2 years ago

Use f(x) = 1 2 x and f -1(x) = 2x to solve the problems.

AVprozaik [17]

Answer:

The answer to your question is below

Step-by-step explanation:

Functions

f(x) = 12x f⁻¹(x) = 2x

a) f⁻¹(-2) = 2(-2)

f⁻¹(-2) = -4

b) f(-4) = 12x

f(-4) = 12(-4)

f(-4) = -48

c) f(f⁻¹(-2)) =

f(f⁻¹(x)) = 12(2x) = 24x

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I think your functions are wrong they must be f(x) = 1/2x f⁻¹(x) = 2x

a) f⁻¹(-2) = 2(-2)

= -4

b) f(-4) = 1/2(-4)

= -2

c) f(f⁻¹(x)) = 1/2(2x)

= x

f(f⁻¹(-2)) = -2

4 0

3 years ago

17+36=z-37 what is z

Roman55 [17]

Answer:

Its 90

Step-by-step explanation:

5 0

2 years ago

Write each equation in standard form. identify A,B,C.

aleksley [76]

Write in y=ax²+bx+c form
solve for y

given
$\frac{x+5}{3}=-2y+4$
solve for y

easy
minus 4 both sides
$\frac{x+5}{3}-4=-2y$
times -1/2 to both sides
$\frac{x+5}{-6}+2=y$
$y=\frac{x+5}{-6}+2$
$y=\frac{-x}{6}-\frac{6}{5}+2$
2=10/5
$y=\frac{-1}{6}x-\frac{6}{5}+\frac{10}{5}$
$y=\frac{-1}{6}x+\frac{4}{5}$
y=ax²+bx+c
$y=0x^2+\frac{-1}{6}x+\frac{4}{5}$

a=0
b= $\frac{-1}{6}$
c= $\frac{4}{5}$

3 0

3 years ago

Hi can you match these for me :(

podryga [215]

Answer:1c . 3a . 4b . 5d . 2e

Step-by-step explanation:sorry if wrong not super good

4 0

3 years ago