Solve the problem.If two sound sources at the same volume are equidistant from a microphone, the pressure on the microphone is given by p = a cos ?1t + a cos ?2twhere a, ?1, ?2 are constants and t is time. Write p as a product of cosine functions.
What will be an ideal response?
p = 2a cos (
t) cos (
t)
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Divide. Express the quotient in lowest terms.
÷ 
A. 3
B. - 3
C. - 
D. - 
Using the Divergence Theorem, find the outward flux of F across the boundary of the region D.F = 27xz8i + 10yj - 3z9k; D: the solid wedge cut from the first quadrant by the plane 
and the elliptic cylinder x2 + 64y2 = 196
A. 
B. 
C. 
D. 
Provide an appropriate response.How many students carried less than 15 credit hours?
A. 20 students B. 9 students C. 11 students D. 8 students
Solve for the amount of discount and amount due.Invoice amt: $342.43Invoice date: Nov 15Terms: 2/9 ROGGoods rec'd: Dec 8Date paid: Dec 15
A. Amount of discount: $6.65; amount due: $331.43 B. Amount of discount: $30.82; amount due: $311.61 C. Amount of discount: $6.85; amount due: $335.58 D. Amount of discount: $0; amount due: $342.43