Solve the problem.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 2 sec when the length is 16 inches, what is the period when L = 4 inches?
A. 3 sec
B. 1 sec
C. 2.5 sec
D. 2.75 sec
Answer: B
Mathematics
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Combine like terms when possible. 7st2 - 4st2
A. 3s2t4 B. -3st2 C. 3st2 D. Cannot be simplified
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Solve the problem.Find (i) the exact volume, and (ii) the approximate volume, using 3.14 for ?, of the circular cone with base radius 11 inches and height 3 yards. Express the answers in cubic inches. Round the approximate answer to the nearest tenth.
A. (i) 13,068? in.3; (ii) 41,033.5 in.3 B. (i) 4356? in.3; (ii) 13,677.8 in.3 C. (i) 1452? in.3; (ii) 4559.3 in.3 D. (i) 121? in.3; (ii) 379.9 in.3
Mathematics
Simplify the expression involving rational exponents.161/4
A. 8 B. 2 C. 16 D. 32
Mathematics