Solve the problem.From the edge of a 1000-foot cliff, the angles of depression to two cars in the valley below are 21° and 28°. How far apart are the cars? Round your answers to the nearest 0.1 ft.
A. 714.4 ft
B. 713.4 ft
C. 724.4 ft
D. 724.5 ft
Answer: C
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The figure shows the percentage of the U.S. population, f(x), made up of teachersas a function of time, x, where x is the number of years after 1900. Use the graph to solve the problem. 
Use the graph to estimate f(60).
A. 1% B. 3% C. 60% D. 2%
Use a product-to-sum identity to rewrite the expression.cos 34° cos 19°
A. 0.5(cos (15°) - cos(53°)) B. 0.5(sin (15°) + sin(53°)) C. 0.5(cos (15°) + cos(53°)) D. 0.5(sin(53°) - sin (15°))
Write the value as the sum of an infinite geometric series. Express the answer as a simplified fraction.1.4040404 . . .
A. 
B. 
C. 
D. 
Reduce the fraction by finding a common factor in the numerator and in the denominator and dividing by the common factor.
A. 
B. 
C. 
D. 