Solve the problem.The formula for the period of a pendulum on the moon is T = 
, where T is the period in seconds, and ? is its length in feet. Find the period of a pendulum whose length is 10 feet. (Round to the nearest hundredth.)
A. 2.72 sec
B. 8.60 sec
C. 4.97 sec
D. 2.74 sec
Answer: B
Mathematics
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Provide an appropriate response. Factor completely: 4x2 - 81y2
A. (4x + 9y)(4x - 9y) B. (2x - 9y)2 C. 4(x + 9y)(x - 9y) D. (2x + 9y)(2x - 9y)
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Simplify.(n + 5)2
A. n2 + 10n + 25 B. 25n2 + 10n + 25 C. n + 25 D. n2 + 25
Mathematics
Solve.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 6 volts are applied, the current is 2 amperes. What is the current when 24 volts are applied?
A. 3 amp B. 8 amp C. 72 amp D. 32 amp
Mathematics