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katrin2010 [14]

3 years ago

14

I need help I don't understand this

2 answers:

Stella [2.4K]3 years ago

5 0

You plug in the numbers to the equation A2+B2=C2

borishaifa [10]3 years ago

3 0

It's so simple though.

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Using long division to find the quotient, what changes do you first

lora16 [44]

Answer:

$\frac{125x^3 - 8}{5x - 2} = 25x^2 + 10x +4$

Step-by-step explanation:

Given

$Dividend = 125x^3 - 8$

$Divisor = 5x - 2$

Required

Determine the quotient

See attachment for complete process.

First, divide 125x^3 by 5x

$\frac{125x^3}{5x} =25x^2$

Write $25x^2$ at the top

Multiply $5x - 2$ by $25x^2$

$= 125x^3 - 50x^2$

Subtract from 125x^3 - 8

i.e.

$125x^3 - 8 - (125x^3 - 50x^2) = 50x^2 - 8$

Step 2:

Divide 50x^2 by 5x

$\frac{50x^2}{5x} = 10x$

Write $10x$ at the top

Multiply $5x - 2$ by $10x$

$= 50x^2 - 20x$

Subtract from 50x^2 - 8

i.e.

$50x^2 - 8 - (50x^2 - 20x) = 20x - 8$

Step 3:

Divide 20x by 5x

$\frac{20x}{5x} = 4$

Write $4$ at the top

Multiply $5x - 2$ by $4$

$= 20x - 8$

Subtract from 20x - 8

i.e.

$20x - 8 - (20x - 8) = 0$

Hence:

$\frac{125x^3 - 8}{5x - 2} = 25x^2 + 10x +4$

8 0

3 years ago

The circumference of a circle is 37.68 meters. What is the area of the circle?

german

The area of the circle is <span>112.98 m squared</span>

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3 years ago

Which of the following is equal to 5⁄7? <br> A. 45⁄63<br> B. 54⁄63<br> C. 35⁄63<br> D. 42⁄63

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$\bf \cfrac{45}{63}\implies \cfrac{9\cdot 5}{9\cdot 7}\implies \cfrac{9}{9}\cdot \cfrac{5}{7}\implies 1\cdot \cfrac{5}{7}\implies \cfrac{5}{7}$

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Plz help theses are exponents

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For number 30 its 3
10

for 34 its 2
1/3

3 0

3 years ago

Victor needs to calculate the number of miles per gallon his car averages. His car's gas tanks holds 15 gallons of gas. Write an

krek1111 [17]

Since you're looking for the unit rate, you can start do this:
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y=\frac{x}{15}$
And yes, $15y=x$ is also correct, it's just switching around the 15

8 0

3 years ago

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