Solve.A generator produces an alternating current according to the equation 
, where t is time in seconds and I is the current in amperes. What is the smallest time t such that I = 36?
A. 
sec
B. 
sec
C. 
sec
D. 
sec
Answer: C
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Find the domain of the rational function.f(x) = 
A. {x|x ? 0, x ? 25} B. {x|x ? -5, x ? 5} C. all real numbers D. {x|x ? -5, x ? 5, x ? -4}
Solve the problem.An election is held among six candidates (A, B, C, D, E, and F). Using the method of pairwise comparisons, A gets 4 points; B gets 3
points; C gets 2
points; D gets 1 point, and E and F tie. How many points does E get?
A. 1
B. 
C. 2
D. 
E. none of these
Write the function in terms of its cofunction. Assume that any angle in which an unknown appears is an acute angle.sec 29.7°
A. cos 150.3° B. csc 60.3° C. cos 60.3° D. csc 29.7°
Solve the problem.A boat is 84 feet from the base of cliff. If the distance from the top of the cliff to the boat is 21 less than twice the height of the cliff to the water. Find the height of the cliff. Round to the nearest tenth of a foot if necessary.
A. 105 ft B. 63 ft C. 49 ft D. 35 ft