Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
Answer: C
Mathematics
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Determine whether the given events are disjoint.Being a male and being a nurse
A. Yes B. No
Mathematics
Find the equation of the hyperbola satisfying the given conditions.Foci: (±13, 0); the length of the transverse axis is 24
A. 
+ 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics
Solve the problem.An exam contains 5 multiple-choice questions, each having 4 possible answers. In how many different ways can the exam be completed?
A. 54 B. C(5, 4) C. 45 D. 5 ? 4 ? 3 ? 2 E. none of these
Mathematics
Write the decimal in numbers.Three thousand and eighty five ten-thousandths
A. 3000.085 B. 3085.0000 C. 30,085 D. 3000.0085
Mathematics