Simplify the expression. Assume all variables represent positive real numbers.(
+ 
)(
- 
)
A. 4
B. 20
C. 12 - 8
D. 12 + 2
Answer: A
Mathematics
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A. 1350 ft B. 282.6 ft C. 141.3 ft D. 139.3 ft
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If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.III, 
A. Positive B. Negative
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Solve using the addition principle.- 
+ y = - 
A. 
B. 
C. 
D. 
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