Solve the problem.In one week, Sunil worked 33.5 hours washing windows and earned $259.50, including tips. How much did Sunil earn per hour? Round to the nearest cent if necessary.
A. $7.73
B. $7.77
C. $7.75
D. $7.85
Answer: C
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A. 5cosh4x sinh x5 B. 5x4 sinh x5 C. -5x4 sinh x5 D. sinh x5
Use mathematical induction to prove the following.12 + 42 + 72 + . . . + (3n - 2)2 = 
What will be an ideal response?
Find dy/dt.y = cos(
)
A. 
sin(
)
B. - 
sin(
)
C. -sin(
)
D. -sin
New telephone lines must be installed to connect 9 cities (A, B, C, D, E, F, G, H and J). Due to government regulations, the only possible connections that are allowed are shown by the edges on the network below. The numbers on the edges indicate the cost (in millions of dollars) of each possible connection. The telephone company wishes to connect the cities in the cheapest possible way.
In an optimal solution to this problem there will not be a direct connection between
A. E and F. B. B and C. C. E and H. D. C and J. E. all of these will be directly connected.