Evaluate the following expression using a unit circle.sin 
A. 
B. - 
C. - 
D. 
Answer: A
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Find the derivative.s = t7 tan t - 
A. 
= 7t6 sec2 t - 
B. 
= t7 sec2 t + 7t6 tan t - 
C. 
= t7 sec t tan t + 7t6 tan t - 
D. 
= - t7 sec2 t + 7t6 tan t + 
Round the decimal to the given place value.3.32 (nearest tenth)
A. 3.4 B. 3.2 C. 3.3
Provide an appropriate response.Suppose a machine costing $12,000 is to be replaced at the end of 7 years, at which time it will have a salvage value of $6000. In order to provide money at that time for a new machine costing $15,000, a sinking fund is set up into which equal payments are placed at the end of every quarter. If the fund earns 5.6% compounded quarterly, what should each payment be?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.How long must $4100 be in a bank at 5% compounded annually to become $8117.72? (Round to the nearest year.)
A. 14 yr B. 13 yr C. 15 yr D. 16 yr