Solve the problem.The path of a projectile fired at an inclination ? to the horizontal with an initial speed vo is a parabola. The range R of the projectile, the horizontal distance that the projectile travels, is found by the formula  where  feet per second per second or  meters per second per second. Find the range of a projectile fired with an initial velocity of 187 feet per second at an angle of 

src="https://sciemce.com/media/4/ppg__tttt0522191253__f1q119g4.jpg" alt="" style="vertical-align: -4.0px;" /> to the horizontal. Round your answer to two decimal places.

A. 986.06 ft
B. 493.03 ft
C. 878.49 ft
D. 878.59 ft

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Answer: D

Mathematics

Solve the problem.In one U.S. town the annual consumption, b, of beef (in kg per person) can be estimated by  where t is the number of years since 1975. Estimate the beef consumption in the year 1985.

A. About 12 kg per person B. About 15 kg per person C. About 18 kg per person D. About 24 kg per person

Solve.Elissa wants to set up a rectangular dog run in her backyard. She has 32 feet of fencing to work with and wants to use it all. If the dog run is to be x feet long, express the area of the dog run as a function of x.

A. A(x) = 16x - x2 B. A(x) = 15x - x2 C. A(x) = 18x2 - x D. A(x) = 17x - x2

Solve the system algebraically.y = 5x + 35y = 3x + 19

A. (-8, -5) B. (5, 8) C. no solution D. (8, -5)

Perform the indicated operation(s), whenever possible.Let A =  and B = . Find A + B.

A.

B.

C.

D.