Choose the expression with exactly the same value as the given expression.cos(176°)
A. cos(66°)
B. sin(86°)
C. cos(4°)
D. -sin(86°)
Answer: D
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Use rational equations to solve the problems.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane in still air.
A. 435 mph B. 605 mph C. 525 mph D. 550 mph
To compete more fully and offer better value to their customers, Dow and Monsanto are working together to develop and produce new corn seed. Each partner will contribute four genetic traits for each new seed that will overcome some problems with pests and ward off weeds. This is an example of a ____ alliance
A. horizontal B. vertical C. network D. symbiotic
Find the area of the region enclosed by these graphs and the vertical lines 
and 
.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Solve the problem.In a recent survey in Canada, 88.8% of men shave with a razor blade, which is 1.5 times the percentage of men in Canada who shave with an electric razor. What is the percentage of men in Canada who shave with an electric razor?
A. 29.6% B. 44.4% C. 59.2% D. 88.8%