Find the exact value by using a half-angle identity.cos 
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Let D be the region bounded below by the cone 
and above by the sphere 
. Set up the triple integral in cylindrical coordinates that gives the volume of using the order of integration 
.
A. 
B. 
C. 
D. 
Use an identity to write the expression as a single trigonometric function or as a single number. cos2
- sin2
A. 
B. 
C. - 
D. - 
Write the whole number in standard form.Andy collected eighty-two thousand dollars for his campaign.
A. 80,002 B. 802,000 C. 8200 D. 82,000
Solve the problem.In a certain city, the cost of a taxi ride is computed as follows: There is a fixed charge of $2.40 as soon as you get in the taxi, to which a charge of $1.90 per mile is added. Find an equation that can be used to determine the cost, C(x), of an x-mile taxi ride.
A. C(x) = 2.40 + 1.90x B. C(x) = 2.80x C. C(x) = 4.30x D. C(x) = 1.90 + 2.40x