Solve the problem.Use the formula L = 10 ? log 
, where the loudness of a sound in decibels is determined by I, the number of watts per square meter produced by the sound wave, and 
What is the intensity of a noise measured at 56 db?
A. 3.98 × 10-6 watts per square meter
B. 5.6 × 10-10 watts per square meter
C. 3.98 × 10-7 watts per square meter
D. 2.7 × 1014 watts per square meter
Answer: C
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Solve the problem.Evaluate 
, a > 0by integrating 
A. 
B. 
C. 
D. 
Solve the problem.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the radius of the hemisphere is 10 feet and the height of the silo is h feet, express the volume of the silo as a function of h.
A. V(h) = 100 ?h + 
?h2
B. V(h) = 100 ?(h2 - 10) + 
?
C. V(h) = 100 ?(h - 10) + 
?
D. V(h) = 4100 ?(h - 10) + 
?
Solve.Find the measure of an angle whose supplement is 6 times the measure of its complement.
A. 30° B. 15° C. 72° D. 36°
Solve the problem.The diagonal of the floor of a rectangular office cubicle is 2 ft longer than the length of the cubicle and 5 ft longer than twice the width. Find the dimensions of the cubicle. Round to the nearest tenth, if necessary.
A. width = 2 ft, length = 9 ft B. width = 4 ft, length = 11 ft C. width = 9.7 ft, length = 22.4 ft D. width = 3.9 ft, length = 9.7 ft