Find the exact value of the expression.cos 
cos 
- sin 
sin 
A. -1
B. 
C. 0
D. 1
Answer: C
You might also like to view...
Solve the problem.A nuclear scientist has a sample of 
of a radioactive material which has a half-life in hours. She monitors the amount of radioactive material over a period of a day and obtains the following data. Use a graphing utility to fit an exponential function to the data. Predict the amount of material remaining at 40 hours.
.
A. y = 100e-0.077x, 6.7 mg B. y = 100e-0.077x, 4.6 mg C. y = 86e-0.071x, 5.0 mg D. y = 92e-0.0686x, 5.9 mg
Let x be a number. Translate the English phrase or sentence into a mathematical expression. A number decreased by six
A. 6 - x
B. x - 6
C. 
D. x + 6
Perform the indicated operation.
? 
A. 
B. - 
C. - 
D. 
Solve the problem.A company has fixed costs of $800 and the linear cost function is 
Which do you think is larger, the average cost per item of producing n items or the marginal cost given that n items have been produced? Explain your thinking. Under what conditions would the marginal cost and the average cost per item be the same?
What will be an ideal response?