Solve for x.21x = 1
A. x = 
B. x = 1
C. x = 0
D. ?
Answer: C
Mathematics
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Provide an appropriate response. How many cubic feet of pea gravel are in a conical pile of gravel that has a height of 45 feet and a diameter of 30 feet.
A. 10,602.9 ft3 B. 5,301.4 ft3 C. 21,205.8 ft3 D. 42,411 ft3
Mathematics
Find the perimeter of the shape when x=2.5.
Mathematics
For the function, find the interval(s) for which f'(x) is positive.f(x) = 
x3 - 2x2 - 5x + 7
A. (-?, -1) and (5, ?) B. (-5, ?) C. (-1, ?) D. (-?, 1) and (5, ?)
Mathematics
Determine whether or not the number is written in scientific notation.0.0005
A. Yes B. No
Mathematics