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3 years ago

A = bh/2 solve for b

Mathematics

1 answer:

rjkz [21]3 years ago

8 0

$A = \dfrac{bh}{2}$

Cross multiply:
$2A = bh$

Divide by h on both sides:
$b = \dfrac{2A}{h}$

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katlin is selling t shirts. she sold 2 for $13.00 and 4 for $25.00 what will katlin charge for 7 t shirts if she keeps selling t

Mila [183]

$42.

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3 years ago

Find the distance between points (-3,-4) and (1,-2)

Ludmilka [50]

Answer:

√20 or 4.47 ish

Step-by-step explanation:

√(1--3)²+(-2--4)²

√(1+3)²+(-2+4)²

√(4)²+(2)²

√16+4

√20

4.47 ish

(Hopefully this is correct, have a nice day!)

6 0

2 years ago

How does one find the inverse function of f(x)= <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3x-1%7D" id="TexFormula1" tit

lisabon 2012 [21]

Answer:

$\displaystyle f^{-1}(x)=\frac{1+x}{3x}$

Step-by-step explanation:

<u>The Inverse of a Function</u>

The procedure to find the inverse of the function is:

* Write the function as a two-variable equation:

$\displaystyle y=\frac{1}{3x-1}$

* Solve the equation for x.

Multiply by 3x-1

$y(3x-1)=1$

Divide by y:

$\displaystyle 3x-1=\frac{1}{y}$

Sum 1:

$\displaystyle 3x=\frac{1}{y}+1$

Operate the right side:

$\displaystyle 3x=\frac{1+y}{y}$

Divide by 3:

$\displaystyle x=\frac{1+y}{3y}$

* Swap the variables:

$\displaystyle y=\frac{1+x}{3x}$

Write back into function form:

$\boxed{\displaystyle f^{-1}(x)=\frac{1+x}{3x}}$

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3 years ago

Explain how you can find the opposite of the opposite of any number without using a number line

liberstina [14]

Just make that number negative to find the opposite but the opposite of the negative number is going to be the original number again.

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3 years ago

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

Read 2 more answers