Find the value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.
Find sin ?.
A. 
B. 
C. 
D. 
Answer: A
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Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Rewrite the given expression without exponents.
A. 
? r ? r ? r ? y ? y
B. 
? r + r + y + y + y
C. 
? r + r + r + y + y
D. 
? r ? r ? y ? y ? y
Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.cos 39°4'
A. 0.2882066 B. 0.3882066 C. 0.7764132 D. 0.9764132