Find the exact value under the given conditions.sin ? = , 0 < ? < ; cos ? = , 0 < ? < Find tan (? + ?).

A. - 
B. - 
C.
D.

Answer: A

Mathematics

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Decide whether the statement is true or false.There are infinitely many negative fractions greater than negative one.

A. True B. False

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Convert the radian measure to degrees. Give answer using decimal degrees to the nearest hundredth. Use 3.1416 for ?.5

A. 572.66° B. 572.96° C. 286.78° D. 286.48°

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Determine whether the improper integral converges or diverges.

A. Converges B. Diverges

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Solve the problem.The surface area of a balloon is given by S(r) = 4?r2, where r is the radius of the balloon. If the radius is increasing with time t, as the balloon is being blown up, according to the formula   find the surface area S as a function of the time t.

A. S(r(t)) = ?t6
B. S(r(t)) = ?t9
C. S(r(t)) = ?t6
D. S(r(t)) = ?t3

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Mathematics