A package is pushed across a floor for a distance of 60 feet by exerting a force of 45 pounds downward at an angle of 
with the horizontal. How much work is done?
?
A. 
B. 
C. 
D. 
E. 
Answer: D
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Determine if the number is prime, composite, or neither.1
A. Prime B. Composite C. Neither
Solve the problem.A church steeple casts a shadow 113 ft long, and at the same time a 8.0-ft post casts a shadow 7.0 ft long. How high is the steeple? Round to the nearest unit.
A. 99 ft B. 114 ft C. 8 ft D. 129 ft
Solve the equation for the specified variable.A = 
h(B + b) for b
A. b = 2A - Bh
B. b = 
C. b = 
D. b = 
Solve the problem.Assume the price per unit of a certain commodity rose sharply and then came back down between 1975 and 1990. The cost of one unit of the commodity can be approximated by the function 
where P is the price of one unit of the commodity (not adjusted for inflation) and t is the number of years after 1975.(a) What was the price per unit of the commodity in 1975?(b) How many years, to the nearest tenth, after 1975 did the price reach its maximum?(c) What was the highest price per unit during this time?(c) Find the price per unit of the commodity in 1979.
A. (a) $3.32 (b) 12.4 yr (c) $47.90 (d) $33.30 B. (a) $3.32 (b) 11.3 yr (c) $47.90 (d) $29.32 C. (a) $3.32 (b) 11.3 yr (c) $51.01 (d) $33.30 D. (a) $3.32 (b) 12.4 yr (c) $51.01 (d) $29.32