dsuarez1
24.09.2020 •
Mathematics
Select the correct answer.
The length of a rectangle is (x - 8) units, and its width is (+ 11) units. Which expression can represent the area of the rectangle?
A 12 +31 + 88
B. 12 - 3.1 + 88
C. 12 - 31 - 88
D. 12 + 3.1 - 88
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Ответ:
D.
Step-by-step explanation:
Area of rectangle =
Length of rectangle = (x - 8)
Width = (x + 11)
Area of rectangle =
Expand the expression
Combine like terms
Expression for the area of the rectangle =
Ответ:
√(9x+7) + √(2x)=7
the solution in the attached figure
the answer is
x=2