Simplify.

A. - 
B.
C.
D. - 


Answer: A

Mathematics

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Solve.In the study of alternating electric current, capacitive voltage is given by , where f is the number of cycles per second, i is the maximum current, and t is the time in seconds. Solve the equation for t.

A. t = 2?f cos 
B. t =  arccos 
C. t = 2?f arccos 
D. t =  arccos 

Mathematics

Solve the equation and check your solution. = 

A. t = 4, t = 6
B. t = 0, t = 
C. t = 0
D. t = 0, t = 36

Mathematics

Find the equation of the following:

(a) Graph:
(b)
c) Find f (1) .
(d) Is f continuous at 1 ?

Mathematics

Solve for the specified letter.P = 2l + 2w, for w

A. w =  - 2l
B. w = 
C. w = P - 2l - 2
D. w = 

Mathematics