The length of a rectangle is 6 centimeters more than its width. the area is 216 square centimeters. what are the dimensions?

l = 6 + w

A = l × w = 216 cm²

(6 + w)·w = 216

6w + w² = 216

w² + 6w - 216 = 0

w² + 18w - 12w = 0

w(w + 18) - 12(w + 18) = 0

(w - 12)(w + 18) = 0

w - 12 = 0 => w = 12 cm

w + 8 = 0 => w = - 18 ∉ N

w = 12 cm

l = 12 cm + 6cm

l = 18 cm

pla·gia·rism

/ˈplājəˌrizəm/

learn to pronounce

noun

the practice of taking someone else's work or ideas and passing them off as one's own.

step-by-step explanation:

the answer is 15.50 for one mile

b) is slope: 0   y- intercept 15.5