Find the exact value of the trigonometric expression without the use of a calculator.cos 
sin 
- cos 
sin 
A. 
B. 1
C. 
D. 
Answer: D
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Solve the problem.In order to measure the distance across a pond (from A to B), Yuko made some measurements, which are given below the drawing. What is the distance (to the nearest unit)? src="https://sciemce.com/media/4/ppg__ttt0611191524__f1q304g6.jpg" alt="" style="vertical-align: -4.0px;" /> 
A. 125 yd
B. 173 yd
C. 157 yd
D. 138 yd
Find the slope and y intercept of the graph of the equation.y = - 
x + 
A. Slope = 
; y intercept = 
B. Slope = - 
; y intercept = 
C. Slope = 
; y intercept = 
D. Slope = 
; y intercept = 
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
If f is one-to-one, find an equation for its inverse.f(x) = 
A. Not a one-to-one function
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 