Question

PLEASE ANSWER this question. This is very urgent!! Due tomorrow!!! SHOW ALL WORK!!!

Answer 1

Explanation:

(a) Perimeter = 2[3x + 5 + 4x - 5] = 14x m

(b) Given perimeter = 42m

14 x = 42

x = 3m

Length = 3x + 5 = 14m

Width = 4x - 5 = 7m

(c) Area = (3x+5)(4x-5) = 12
`x^(2)` + 5x - 25

when x = 4; area = 12*16 + 20*4 - 25

Area = 192 - 80 -25 = 159
`m^(2)`