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Gbecky122
12.12.2020 •
Mathematics
The expression s2 is used
to calculate the area of a
square, where s is the side
length of the square. What
does the expression (8x)2
represent? The area of a
square with side length __.
A. 8 C. 4x
B. 16 D. 8x
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Ответ:
expression 4x the area is 16
Step-by-step explanation:
coz the expression one must devide (8x)2 to get 4x and to find the area one must multiplely 4x*4 to get 16
Ответ:
B
Step-by-step explanation:
Consecutive angles are supplementary, thus
30 + 5x + 15 + 10x = 180 , that is
15x + 45 = 180 ( subtract 45 from both sides )
15x = 135 ( divide both sides by 15 )
x = 9 → B