Find the length of the missing side for the given pair of similar figures. 
A. 20 in.
B. 12 in.
C. 25 in.
D. 19 in.
Answer: A
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Use the inverse trig functions to express the angle in terms of the indicated unknown side. 
Express angle A in terms of b. Use one of the inverse trig functions tan-1, sin-1, or cos-1.
A. A = tan-1 
B. A = sin-1 
C. A = sin-1 
D. A = cos-1 
Solve the problem. Round amounts of money to the nearest cent.A 19-kilometer roadway under construction is being completed at a pace of one-tenth of its length per week. After 3 weeks, how many meters remain to be completed?
A. 13.3 m B. 13,300 m C. 133 m D. 1330 m
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.0.2x = 3; multiplied
A. - 
B. 3
C. 0.2
D. 5
Solve the problem.Find the average rate of change.
Minutes Cellular Phone is Used
A. $0.53 per min B. $4.75 per min C. $1.09 per min D. $0.92 per min