AdoNice
29.10.2021 •
Mathematics
PLEASEEEEE I DON'T UNDERSTAND THISSSS!
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Ответ:
So, the area is 70 square yards.
Step-by-step explanation:
The area of a parallelogram is simple.
It's base times height ( b x h )
A = b x h
A = 14 x 5
A = 70 yd²
Ответ:
DE + EF = 4x+2
DE = x+7
EF = 7
Substitute these in
x + 7 + 7 = 4x + 2
x + 14 = 4x + 2
subtract x from both sides
14 = 3x + 2
subtract 2 from both sides
3x = 12
divide both sides by 3
x = 4
substitute this in to find the length of DE
DE = x + 7
(4) + 7 = 11
the answer is 11