Find the volume of the sphere or the cylinder. Use ? = 3.14 when needed. Round to the nearest thousandth if necessary.
A. 346.97 yd3
B. 11,796.98 yd3
C. 2949.245 yd3
D. 693.94 yd3
Answer: C
Mathematics
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The vector r(t) is the position vector of a particle at time t. Find the angle between the velocity and the acceleration vectors at time t = 0.r(t) = sin-1(3t)i + ln(5t2 + 1)j + 
k
A. 
B. 0
C. 
D. 
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Perform the indicated operation.
A. -13
B. -23
C. 13
D. - 
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The student wants to read a book of ##pages## pages. How many pages should he read per day to finish the book in a week?
a. ##inc1## b. ##inc2## c. ##a## d. ##inc3##
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Solve and check your solution(s). If the equation has no real solution, so state.
- 7 = 0
A. 7
B. 49
C. 
D. 
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