Solve the problem.From a boat on the river below a dam, the angle of elevation to the top of the dam is 28°48'. If the dam is 1200 feet above the level of the river, how far is the boat from the base of the dam (to the nearest foot)?

A. 2173 feet
B. 2153 feet
C. 2163 feet
D. 2183 feet


Answer: D

Mathematics

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Solve the problem. Round your answer to the nearest tenth unless indicated otherwise.A label on a box shows that the box weighs 140 kg. How many pounds is that?

A. 355.6 lb B. 148.4 lb C. 63.6 lb D. 308 lb

Mathematics

Convert to a polar equation.x2 + 4y2 = 4

A. 4 cos2? + sin2? = 4r B. cos2? + 4 sin2? = 4r C. r2(4 cos2? + sin2?) = 4 D. r2(cos2? + 4 sin2?) = 4

Mathematics

Solve the system of equations using substitution.

A. (-2, -4) B. (2, -4) C. (-2, 4) D. (2, 4)

Mathematics

Indicate whether the expression is a polynomial. If the polynomial has a specific name - monomial, binomial, or trinomial - give that name.6y4 - 7y3 + 8

A. not a polynomial B. binomial C. trinomial

Mathematics