Solve. Use ? ? 3.14 when necessary.Find the volume of a cone with radius 4 centimeters and height 7 centimeters.
A. 59 cm3
B. 176 cm3
C. 117 cm3
D. 234 cm3
Answer: C
Mathematics
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Perform the operation.
?
?
A.
B.
C.
D.
E.
none of these
Mathematics
Find the particular solution to the given differential equation that satisfies the given conditions.D2y + 2 Dy + 10y = 0; y = 0 when x = 0 and y = e-?/6 when x = 
A. y = ex sin 3x B. y = e-x cos 3x C. y = e-x(c1 sin 3x + c2 cos 3x) D. y = e-x sin 3x
Mathematics
Solve the inequality.16 - x2 ? 0
A. x ? 4 B. x ? -4 C. x ? -4 or x ? 4 D. -4 < x < 4
Mathematics
Round the decimal to the given place value.83.2, nearest ten
A. 79 B. 81 C. 80 D. 83.2
Mathematics