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Fiesta28 [93]
3 years ago
6

Find the area of a rectangle with a width of x3 + 5x - 9 and a length of x2 + 8.

Mathematics
1 answer:
Drupady [299]3 years ago
4 0

Answer:

A = x⁵ + 13x³ - 9x² + 40x - 72  

Step-by-step explanation:

The formula for the area of a rectangle is length X width, or A = lw.

Substitute the equations for the sides into the formula:

A = lw

A = (x² + 8)(x³ + 5x - 9)      <= use the distributive property

A = x⁵ + 5x³ -9x² + 8x³ + 40x - 72   <= collect like terms

A = x⁵ + 13x³ - 9x² + 40x - 72

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1 year ago
Please please use explanation with answer
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Answer:

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Step-by-step explanation:

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5 0
3 years ago
Alex wrote checks on Tuesday for $30 and $40. He also made a deposit in his
Ksivusya [100]

Alex finally had $(x+110) amount of money in his account i.e. He had $100 more then before!

<u>Step-by-step explanation:</u>

Alex wrote checks on Tuesday for $30 and $40. He also made a deposit in his checking account of $180. Let's solve it step by step :

<u>Alex wrote checks on Tuesday for $30 and $40:</u>

Let's suppose Alex initially had x amount of money out of which $30 & $40 is deducted! so left amount of money is $(x-70) .

<u>He also made a deposit in his checking account of $180:</u>

Out of left money $(x-70) , Alex deposited $180 in account so new money = $(x-70) + $180 = $(x+110)

Therefore, Alex finally had $(x+110) amount of money in his account i.e. He had $100 more then before!

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3 years ago
Someone please help me with this question I need the answer plsss
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Answer:

6

Step-by-step explanation:

The slope is: \frac{y_{2} -y_{1} }{x_{2} -x_{1} }. In this case, for the numerator you get 30. For the denominator you get 5. Divide 30/5 to get 6 as your final slope.

Hope it helps!

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2 years ago
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I think it is the first one -2
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2 years ago
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