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3 years ago

7

Hi plz halp me I don’t understand and plz do step by step

1 answer:

miv72 [106K]3 years ago

7 0

First multiply (4x5)
Then find 2 cubed = 2x2x2= 8
Then divide 20 by 2= 20/2=10
Then 10-8= 2

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For the equation -4y = 8x , what is the constant of variation?

Inga [223]

-4y = 8x

Divide both sides by -4

y = -2x

This is in the form of y = kx, where k is the constant of variation.
y = kx is the direct

That means, k = -2.

The constant of variation is B. -2.

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3 years ago

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The diameter is 12 inches. What is the area? What do I do to solve it please help!

SashulF [63]

Answer:

113.04 sq. in.

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-Dominant- [34]

Answer:

$\dfrac{2m -1}{5}$

Step-by-step explanation:

Since we have common denominators inside the parentheses, we can combine the denominators. Then, we get the following expression:

$2\huge\text{(}\dfrac{1}{5} m - \dfrac{2}{5} \huge\text{)} + \dfrac{3}{5}$

$2\huge\text{(}\dfrac{m - 2}{5} \huge\text{)} + \dfrac{3}{5}$

Now, we can multiply the expression inside the parentheses by 2.

$\huge\text{(}\dfrac{2m - 4}{5} \huge\text{)} + \dfrac{3}{5}$

Since the expression inside the parentheses cannot be <u>simplified further</u>, we can open the parentheses and simplify the expression.

$\dfrac{2m - 4}{5} + \dfrac{3}{5}$

We can combine the denominators as the denominators are the same.

$\dfrac{2m - 4 + 3}{5}$

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$\dfrac{2m -1}{5}$

Therefore, the simplified expression is (2m - 1)/5.

Learn more about combining like terms: brainly.com/question/13080103

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1 year ago

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3 years ago

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kolezko [41]

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