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lakkis [162]
3 years ago
9

A rectangle has an area of 10x^2-29x-21 square units. Which of the following could represent the primeter of the rectangle in te

rms of x?
a. 2x-7
b. 5x+3
c. 7x-4
d. 14x-8
Mathematics
1 answer:
nata0808 [166]3 years ago
5 0
Area=LW
<span>10x^2-29x-21=area
factor and those are the lengh and width
(2x-7)(5x+3)
perimiter=2(L+W)
P=2(2x-7+5x+3)
P=2(7x-4)
P=14x-8

answer is D
</span>

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Find the missing value when given the modulus.
kolbaska11 [484]

Solving the complex number, we get the value of the missing value that is ‘a’ = -6

We  have been given the expression as

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    z = x + iy

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To find the modulus value, the formula is given by,

  |z| = |x + iy|

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According to the question, |z| = √37         (2)

Equating equation (1) and (2), we get

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Now value of a can be 6 or -6. We have been given that the modulus is in third quadrant.

Hence the value will be negative. Therefore, the missing value will be -6.

Learn more about complex number here : brainly.com/question/5564133

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The domain is the corresponding value of x

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