Choose the best answer.The area of a baseball infield is about
A. 913 dm2
B. 913 m2
C. 913 cm2
D. 913 km2
Answer: B
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Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.z = x2 + y2; 0 ? x ? 1, 0 ? y ? 1
A. 
B. 
C. 
D. 
Find the volume of the shaded solid. Round your answer to 2 decimal places if necessary. Use ? = 3.14 when necessary.
A. 125,600 ft3 B. 510,250 ft3 C. 31,400 ft3 D. 628 ft3
If the number in the statement is written in scientific notation, write it without exponents. If it is written without exponents, write it in scientific notation.It has been estimated that the average American watches 58,240 hours of television in a lifetime.
A. 5.824 × 104 hours B. 5.824 × 103 hours C. 5.824 × 105 hours D. 58.24 × 103 hours
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 93 db?
A. 9.3 × 10-10 watts per square meter B. 1.09 × 1016 watts per square meter C. 2 × 10-3 watts per square meter D. 2 × 10-2 watts per square meter