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andreyandreev [35.5K]

3 years ago

9

The elevations, in feet, of three cities are marked on the number line shown below.

2 answers:

jeyben [28]3 years ago

8 0

Answer:

my bad if its wrong but its D

Dmitriy789 [7]3 years ago

7 0

I think the answer it C

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What is the unit rate per year?<br>

Darina [25.2K]

Answer:

3.6

Step-by-step explanation:

divide 36 by 10 be sure it's the easiest part

7 0

3 years ago

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For 1-3 write an equivalent expression <br> 1.) -3(7+5g) <br> 2.) (x+7)+3y <br> 3.) 2/9-1/5*x

alukav5142 [94]

$\huge \bf༆ Answer ༄$

The equivalent expressions are ~

<h3>Question : 1 </h3>

$\sf \: - 3(7 + 5g)$

$\sf - 21 - 15g$

$\sf- 15g - 21$

<h3>Question : 2</h3>

$\sf \:( x + 7) + 3y$

$\sf \: x + 7 + 3y$

$\sf \: x + 3y + 7$

<h3>Question : 3 </h3>

$\sf \dfrac{2}{9} - \dfrac{1}{5x}$

$\sf \dfrac{10x - 9}{45x}$

7 0

2 years ago

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Need with these thank you if you help

Aleks [24]

A. p^4/p^7 = p^-3 = 1/p^3
b. 4^3/4^3 = 1
c. 11^2/11^4 = 11^-2 = 1/11^2
d. 6^4/6 = 6^3

3 0

3 years ago

Given f(x)=3x+12, find f(f^-1(0))

mamaluj [8]

Answer:

<h2>0</h2>

Step-by-step explanation:

METHOD 1.

We know:

$f\bigg(f^{-1}(x)\bigg)=x$

Therefore

$f\bigg(f^{-1}(0)\bigg)=0$

METHOD 2.

$\text{Find}\ f^{-1}(x)$

$f(x)=3x+12\to y=3x+12$

exchange x to y and vice versa:

$x=3y+12$

solve for y:

$3y+12=x$ <em> subtract 12 from both sides</em>

$3y=x-12$ <em>divide both sides by 3</em>

$y=\dfrac{x-12}{3}\to f^{-1}(x)=\dfrac{x-12}{3}$

$f\bigg(f^{-1}(x)\bigg)\to$ replace x in f(x) with the expression $\dfrac{x-12}{3}$

$f\bigg(f^{-1}(x)\bigg)=3\cdot\dfrac{x-12}{3}+12=x-12+12=x$

$f\bigg(f^{-1}(0)\bigg)\to$ put x = 0 to $f\bigg(f^{-1}(x)\bigg)=x$

$f\bigg(f^{-1}(0)\bigg)=0$

METHOD 3.

$\text{Find}\ f^{-1}(x)$

$f^{-1}(x)=\dfrac{x-12}{3}$

Calculate the value of <em>f</em> ⁻¹(x) for x = 0:

$f^{-1}(0)=\dfrac{0-12}{3}=\dfrac{-12}{3}=-4$

Calculate the value of <em>f(x)</em> for x = -4:

$f(4)=3(-4)+12=-12+12=0$

6 0

3 years ago

12 = x/3<br>x=3<br>x=4<br>x=12<br>x=36

NARA [144]

Answer:

D) 36

Step-by-step explanation:

x/3 = 12

x = 12*3

x = 36

4 0

3 years ago

Read 2 more answers