Find the requested fraction.
= 
A. 
B. 
C. 
D. 
Answer: C
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Graph the function.Graph five periods of the function f(x) = tan 4x.
A. 
B. 
C. 
D. 
Solve the problem using Gaussian elimination.Three machines together produce 170 parts each hour. Twice the production of the second machine is 
more than the sum of the production of the other two machines. If the first machine operates for 
and the others operate for 9 hours, 
are produced. Find the production rate of each machine.
A. 60 parts/h, 30 parts/h, 80 parts/h B. 60 parts/h, 80 parts/h, 30 parts/h C. 80 parts/h, 60 parts/h, 30 parts/h D. 30 parts/h, 60 parts/h, 80 parts/h
Solve the problem.The value (in thousands of dollars) of a certain car is given by the function V = 
, where t is measured in years. Find a general expression for the instantaneous rate of change of V with respect to t.
A. 
B. - 
C. - 
D. - 
Find the derivative.y = 
+ 
A. y ' = 10 cos x - csc2 x B. y ' = -10 csc x cot x + sec2 x C. y ' = 10 csc x cot x - sec2 x D. y ' = 10 csc x cot x - csc2 x