Inktown4life0
18.03.2021 •
Mathematics
A rectangle has a length that is 4 times the width, w. If the perimeter of the rectangle has a perimeter of 40 feet, what is the length of the rectangle?
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Ответ:
16cm
Step-by-step explanation:
l = 4w
2l + 2w = p
2(4w) + 2w = 40
8w + 2w = 40
10w = 40
w = 4 cm
l = 4w = 4(4) = 16cm
Ответ:
(x-6)(x+2) D
Step-by-step explanation:
first you need to see which two numbers add up to -4 and multiply to -12 which is -6 and 2