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 = sec ?s
B. ?s = tan2 ?s
C. ?s = tan ?s
D. ?s = cot ?s
Answer: C
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Approximate the volume of the solid using 3.14 for ?. If necessary, round to the nearest thousandth.
A. 20,347.2 ft3 B. 5086.8 ft3 C. 1130.4 ft3 D. 565.2 ft3
Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.xy = -5
A. Origin only B. y-axis only C. x-axis, y-axis, origin D. x-axis only
Use a proportion to solve the problem.On a map of the Thunderbird Country Club golf course, 2.5 inches represent 30 yards. How long is the 17th hole if the map shows 13.5 inches?
A. 405 yards B. 162 yards C. 1012.5 yards D. 5.6 yards
Graph the level curves in the first octant at heights of 
and 
for the given equation.5x + 3y + z = 30 
A. 
B. 
C. 
D. 