Find the exact value of the expression.cos 
cos 
- sin 
sin 
A. 0
B. 
C. -1
D. 1
Answer: A
Mathematics
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Find the area of the part of the sphere x² + y² + z² = 36z that lies inside the paraboloid z = x² + y.²
Select the correct answer. a. 6? b. 36? c. 12.5? d. 16? e. 10.5?
Mathematics
Write in terms of i.
A. 5
B. -5
C. 5i
D. -5i
Mathematics
Make a line graph using the given frequencies.A medical research team studied the ages of patients who had strokes caused by stress. The results of 34 patients are as follows: 
?
A. 
B. 
C. 
D. None of the above
Mathematics
Answer the question.In how many ways can you answer the questions on an exam that consists of 13 multiple choice questions, each of which has 4 answer choices?
A. 67,108,634 B. 67,109,704 C. 28,561 D. 67,108,864
Mathematics