Solve the problem.A wooden block sitting at rest on a flat, level board will just begin to slide when the board is tilted up to a critical angle of inclination, ?s . An experiment that determines this critical angle can be used to find the coefficient of static friction, ?s , for the block on the board by using the relation 
Rewrite this relation using a quotient identity.
A. ?s = tan2 ?s
B. ?s = cot ?s
C. ?s = sec ?s
D. ?s = tan ?s
Answer: D
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Use inductive reasoning to find the next equation in the pattern.1 + 1 = 21 + 1 + 2 = 41 + 1 + 2 + 3 = 71 + 1 + 2 + 3 + 5 = 12
A. 1 + 1 + 2 + 3 + 5 + 8 + 13 = 20 B. 1 + 1 + 2 + 3 + 5 + 8 + 13 = 33 C. 1 + 1 + 2 + 3 + 5 + 8 = 20 D. 1 + 2 + 3 + 5 + 8 = 20
Provide an appropriate response.Find the amount of increase if 48 is increased by 25%.
A. 58 B. 60 C. 12 D. 10
Solve the problem.A loan worth $4500 collects simple interest each year for 12 years. At the end of that time, a total of $7605 is paid back. Determine the APR for this loan.
A. 5.5% B. 4.5% C. 5.75% D. 5% E. 4.25%
State whether the event is impossible or certain and then give its probability.Choosing a green marble from a bag that contains only green marbles.
A. Impossible; 0 B. Certain; 1