Set up an integral for the length of the curve.y = 4 cos x, 0 ? x ? ?
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine whether the graph represents a function.
A. A function B. Not a function
Mathematics
Solve the problem.The level of a sound in decibels (db) is determined by the formula 
where I is the intensity of the sound in watts per square meter. What is the intensity of a noise measured at 53 db? Express the answer in scientific notation, rounded to two decimal places.
A. 2.00 × 10-7 watt/m2 B. 2.00 × 1014 watt/m2 C. 5.30 × 10-10 watt/m2 D. 2.00 × 10-6 watt/m2
Mathematics
Multiply the monomials.(7y)3(y3)4
A. 343y36 B. 49y13 C. 343y15 D. 7y15
Mathematics
Convert the angle from radian measure to degree measure. Round to the nearest hundredth of a degree when appropriate.- 
?
A. -9.25° B. -1060?° C. -265° D. -530°
Mathematics