Find the volume of the pyramid. If necessary, round to the nearest hundredth.
A. 810 ft3
B. 405 ft3
C. 270 ft3
D. 847.8 ft3
Answer: C
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Find the unit tangent vector of the given curve.r(t) = 4t3i - 3t3j + 12t3k
A. T(t) = 
i - 
j - 
k
B. T(t) = 
i - 
j + 
k
C. T(t) = 
i + 
j + 
k
D. T(t) = 
i - 
j + 
k
For the given function, find the domain and range of both f(x) and f-1(x).
A.
| f: | domain: {x| x ? -2} |
f-1: domain: {x| x ? 0}
range: {y| y ? -2}
B.
| f: | domain: {x| x ? -2} |
f-1: domain: {x| x ? -2}
range: {y| y ? 0}
C.
| f: | domain: {x| x ? 0} |
f-1: domain: {x| x ? -2}
range: {y| y ? 0}
D.
| f: | domain: {x| x ? 0} |
f-1: domain: {x| x ? 0}
range: {y| y ? -2}
Give the contrapositive of the statement, “If it is warm, then the car will start.”
What will be an ideal response?
Solve the problem.A thermometer reading 
is placed inside a cold storage room with a constant temperature of 
If the thermometer reads 
in 6 minutes, how long before it reaches 
Assume the cooling follows Newton's Law of Cooling: U = T + (Uo - T)ekt.(Round your answer to the nearest whole minute.)
A. 36 minutes B. -12 minutes C. 13 minutes D. 2 minutes