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Levart [38]
3 years ago
5

Are the expression 8a^2-4b+7a^2 and 5(3a^2-2b)+6b equivalent

Mathematics
1 answer:
Alchen [17]3 years ago
7 0
8a² - 4b + 7a² and 5(3a² - 2b) + 6

First, simplify the expressions.

1) 8a² - 4b + 7a²

Add like terms.

15a² - 4b

2) 5(3a² - 2b) + 6

Distribute 5 by multiplying the number to each terms inside the parenthesis.

15a² - 10b + 6

15a² - 4b ≠ 15a² - 10b + 6

Solution: The expressions are not equivalent.
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Answer: The length is 13 inches and the width is 11 inches.

Step-by-step explanation:

Let L represent the length of the rectangle.

Let W represent the width of the rectangle.

The formula for determining the area of a rectangle is expressed as

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The area of the rectangle is 143 square inches. This means that

LW = 143 - - - - - - - - - - - - --1

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Substituting L = W + 2 into equation 1, it becomes

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3 years ago
Assume the 72-gon is a regular polygon. The measure of one interior angle is how many
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9514 1404 393

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