3 years ago

Find the Area and Perimeter!

Mathematics

1 answer:

olga_2 [115]3 years ago

7 0

Area of a triangle is 1/2 x base x height.

base = 12

Height = x+6

Area = 1/2 * 12 * x+6

Area = 1/2 * 12x * 72

Area = 6x + 36

Perimeter is the sum of the 3 sides:

x-7 + 12 + 2x+5

3x -2 + 12

3x+10

The last choice is the correct answer.

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Next step :

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Identify the maximum value of the function y = −4x2 − 24x + −36.

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$y = -4x^2 - 24x + -36$

$y = -4(x^2 + 6x) -36$

$y = -4(x^2 + 6x + (6/2)^2) + 4(3)^2 -36$

$y = -4(x + 3)^2$

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3 years ago

The length of a rectangle is three more than twice its width. The perimeter is 36 inches. Find the length and width

Mandarinka [93]

Your answers are:

W= 5
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Good luck!

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4 years ago