Tell whether the pair of ratios forms a proportion.
?
, 
?
A. yes
B. no
Answer: B
Mathematics
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Factor by any method.4x2 - 4x + 1 - y2
A. (2x - 1 + y)(2x - 1 - y) B. prime C. (2x + 1 + y)(2x + 1 - y) D. (2x - 1 + y)(2x + 1 - y)
Mathematics
Evaluate.
2
A. 100 B. 4 C. 9 D. 2
Mathematics
Solve each problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs 
for two opposite sides, and 
for the other two sides. Find the dimensions of the field of area 
that would be the cheapest to enclose.
A. 15.7 ft @ $7 by 54.9 ft @ $2 B. 8.4 ft @ $7 by 102.6 ft @ $2 C. 54.9 ft @ $7 by 15.7 ft @ $2 D. 102.6 ft @ $7 by 8.4 ft @ $2
Mathematics
Solve the problem.The table shows the total amount of precipitation (in inches) in a certain US city in 17 different years. Find the interquartile range.
A. 7.6 in. B. 7.9 in. C. 6.9 in. D. 7.2 in.
Mathematics