Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Answer: C
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Provide an appropriate response.The function 
models the median, or average, age, y, at which U.S. men were first married x years after 1900. In which year was this average age at a minimum? (Round to the nearest year.) What was the average age at first marriage for that year? (Round to the nearest tenth.)Median Age at Which U.S. Men First Married
A. 1957, 23.1 years old B. 1957, 50.5 years old C. 1954, 36 years old D. 1936, 50.5 years old
Solve the problem.Hi-Tech UnWater begins a cable TV advertising campaign in Miami to market a new water. The percentage of the target market that buys water is estimated by the function 
t represents the number of days of the campaign. After how long will 90% of the target market have bought the water?
A. 120 days B. 90 days C. 115 days D. 3 days
Graph the solution set of the system of inequalities.y > -2x ? -3
A. 
B. 
C. 
D. 
Multiply.7.76 × 0.1
A. 0.0776 B. 0.00776 C. 0.776 D. 77.6