Solve.A certain element is so light that 1 cubic foot (ft3) of it weighs only 0.07733 pound. Round this weight to the nearest hundredth of a pound.
A. 0.00 lb
B. 1.00 lb
C. 0.07 lb
D. 0.08 lb
Answer: D
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Solve the problem.For a simply supported beam with a load that increases uniformly from left to right, the bending moment M (in ft?lb) at a distance of x (in ft) from the left end is given by M = 
(wl2x - wx3). Determine the location of the maximum bending moment. In the formula, w is the rate of load increase (in 
) and l is the length (in ft) of the beam.
A. x = 
B. x = 
C. x = l
D. x = 
Convert to percent.0.9
A. 90% B. 0.09% C. 900% D. 0.9%
Write the expression as a product of a whole number and a power of 10. Use an exponent to represent the power of 10.0.00000003
A. 3 × 10-6 B. 3 × 10-8 C. 3 × 10-9 D. 3 × 10-7
Solve the problem.A light 20 feet above a warehouse floor produces a cone of light. If the angle shown in the figure is 
what is the diameter of the circle of light on the floor? Round your answer to the nearest tenth of a foot when necessary. 
A. 25 ft B. 12.5 ft C. 11.5 ft D. 5.7 ft