Find the exact value by using a half-angle identity.cos 75°
A. - 
B. 
C. 
D. - 
Answer: B
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Find the area enclosed by the given curves.Find the area of the region in the first quadrant bounded on the left by the y-axis, below by the line 
above left by y = x + 4, and above right by y = - x2 + 10.
A. 
B. 
C. 15
D. 
Multiply.
A. 1,539,660 B. 1,600,940 C. 2,152,460 D. 2,221,400
A survey of 100 bank customers revealed that 58 of them have a savings account, 63 of them have a checking account, 22 of them have a savings account and a loan, 16 of them have a checking account and a loan, 27 of them have only a checking account, 12 have a savings account and a checking account and a loan. Assume that every customer has at least one of the services. Determine the number of customers who have a checking account but no savings account.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.Calculate the rent of an annuity at 4% compounded semiannually if payments are made every half year and the future value after 12 years is $30,000.
Fill in the blank(s) with the appropriate word(s).