3 years ago

Simplify. If x = 4, evaluate -x A: -8 B: 4 C: 0 D: -4

Mathematics

2 answers:

Blizzard [7]3 years ago

6 0

D obviously because -4 is -x

natulia [17]3 years ago

3 0

-4 is the correct answer

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The rectangle below has an area of x^2+8x+15x

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Step-by-step explanation:

Given : The rectangle below has an area of $x^2+8x+15$ square meter and a width of $x+3$ meter.

To find : What expression represents the length of the rectangle?

Solution :

The area of the rectangle is given by,

$\text{Area}=\text{Length}\times \text{Breadth}$

$\text{Area}=x^2+8x+15$

$\text{Breadth}=x+3$

$x^2+8x+15=\text{Length}\times(x+3)$

$\text{Length}=\frac{x^2+8x+15}{x+3}$

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$\text{Length}=x+5$

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