Solve the problem.The period of a pendulum, in seconds, is given by the formula 2? 
, where L is the length of the pendulum. Rewrite the formula, by rationalizing the denominator.
A. P = 
B. P = 
C. P = 2? 
D. P = 
Answer: A
Mathematics
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Find the inverse of the function.f(x) = 7x3 + 6
A. f-1(x) = 
B. f-1(x) = 
- 6
C. Not a one-to-one function
D. f-1(x) = 
Mathematics
What is PO in dBm when PO = 4.2 W.
a. 1.7 dBm b. 3.6 dBm c. 4.2 dBm d. 20.9 dBm e. 36.2 dBm
Mathematics
Write the statement in symbolic form.The number 
is not a rational number.
A. 
? R
B. 
? Q
C. 
? I
D. 
? R
Mathematics
Graph the equation by hand.y = -2x - 1
A. 
B. 
C. 
D. 
Mathematics