Find the volume of the pyramid. If necessary, round to the nearest hundredth.
A. 1120.1 mi3
B. 356.72 mi3
C. 535.08 mi3
D. 1070.16 mi3
Answer: B
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Solve the problem.Evaluate 
at (x, y, z) = (3, 4, 1) for the function u(p, q, r) = p2 - q2 - r; p = xy, q = y2, r = xz.
A. 25 B. 23 C. 97 D. 95
One of the values r (radius), d (diameter), V (volume), or S(surface area) is given for a particular sphere. Find the indicated value. Leave ? in your answer.V = 
? ft3; S = ?
A. 196? ft2
B. 14? ft2
C. 196 ft2
D. 
? ft2
Solve the problem.A construction company buys a truck for $39,000. The truck is expected to last 16 years, at which time it will be worth $3800. Write a function v(x) that describes the value of the truck at any time during its lifetime. Be sure to state the domain of the function.
A. v(x) = 39 ,000 - 2300t, with domain 0 ? t ? 16 B. v(x) = 39 ,000 - 2200t, with domain 0 ? t ? 16 C. v(x) = 39 ,000 - 2500t, with domain 0 ? t ? 16 D. v(x) = 39 ,000 + 2200t, with domain 0 ? t ? 16
Solve the problem.Sue buys a house for $254,000. What is the value of the house 1 year later, if it depreciates by 4.5% in the first year after she buys it?
A. $242,570 B. $11,430 C. $139,700 D. $114,300