Need ! the second side of a triangular deck is 5 feet longer than the shortest side. the third side of the deck is 5 feet shorter than twice the length of the shortest side. if the perimeter of the deck is 72 feet, what are the lengths of the three sides?

Let s represent the length of the shortest side in feet. Then the second side is repreesented by s+5, and the third side by 2s-5. The perimeter is the sum of these side lengths:

... 72 = (s) + (s+5) + (2s-5)

... 72 = 4s . . . . . . to find s, we must divide this by 4

... 18 = s . . . . length in feet of the shortest side

The second side is ...

... s+5 = 18+5 = 23 . . . . feet

The third side is ...

... 2s-5 = 2·18 -5 = 31 . . . . feet

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.

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step-by-step explanation:

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