Use the given information to find the exact value.cos A = - ,   < A < ?; sin B = - , ? < B < Find tan (A + B).

A.
B.
C.
D.


Answer: C

Mathematics

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Compute the expected age ? of a British nurse in 1851. Assume that the table below shows the age distribution of nurses in Great Britain in 1851. Round your answer to nearest hundredth.  Age range (yr)20-29 30-39 40-49 50-59 60-69 70-79 80+ Midpoint (x)24.5 34.5 44.5 54.5 64.5 75.5 84.5 Percent of nurses5.8% 9.8% 19.4% 29.1% 25.1% 9.1% 1.7%

A. 54.50 B. 59.50 C. 53.76 D. 53.79 E. 43.79

Mathematics

Answer the question.Tell which of the following distributions would have the most variation.

A. The number of hours of light per day over a one-year period in Mexico City B. The number of hours of light per day over a one-year period at the North Pole C. The number of hours of light per day over a one-year period at the equator D. The number of hours of light per day over a one-year period in New York

Mathematics

Use an annuity table to find the periodic payment that will render the sum. Round to the nearest cent.S = $280,000, interest is 5% compounded semiannually, payments made at the end of each semiannual period for 8 years

A. $11,835.57 B. $29,322.10 C. $14,447.72 D. $32,050.86

Mathematics

Solve. = 

A.
B.
C.
D.

Mathematics