Step-by-step explanation:
The slopes of perpindicular lines must be negative reciprocals of each other -- while -4 and 4 are negative to each other, the negative recipricocal for -4 is 1/4 and -1/4 for 4.
The slopes of parallel lines must be the same, so these are not parallel.
Answer:
D
Step-by-step explanation:
Δ CBA and Δ SAR are similar
Thus the ratios of corresponding sides are equal, that is
=
, substituting values gives
=
( cross- multiply )
10x = 20 ( divide both sides by 10 )
x = 2
Thus
AS = x = 2
128pi in. cubed.
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