Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sin ? = - 
, 
< ? < 2?Find cos (2?).
A. 
B. 
C. - 
D. - 
Answer: C
Mathematics
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Solve the problem. Round to the nearest hundredth, if necessary.A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 210 and a standard deviation of 50. If an applicant is randomly selected, find the percentage of applicants with a rating that is between 165 and 220.
A. 39.52% B. 57.93% C. 21.11% D. 18.41%
Mathematics
Determine if the type of relation is linear, nonlinear, or none.
A. nonlinear B. none C. linear
Mathematics
Simplify. Assume all variables represent positive real numbers.
A. 
B. 
C. 
D. 2
Mathematics
Find the term that should be added to the expression to form a perfect square trinomial. Write the resulting perfect square trinomial in factored form.x2 - 
x +
A. 49; 
2
B. 
; 
2
C. - 
x; 
2
D. 
; 
2
Mathematics