Triangle ABC is a right triangle with sides of lengths a, b, and c and a right angle at C. Find the indicated trigonometric function value of A. Rationalize denominators containing radicals.a = 7, b = 2; find sec A.

A.
B.
C.
D.


Answer: C

Mathematics

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Solve the problem.Find the length of the curve y = ln(csc x), ?/3 ? x ? ?/2

A. 1 - ln()
B. ln()
C. ln(2)
D. ln( + 1)

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Identify the equation as either linear or nonlinear by trying to write it in the form 5x2- 2.3x = x2 - 2

A. Nonlinear B. Linear

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The pair of figures is similar. Find the missing side n. Round to the nearest tenth when necessary.

A. n = 0.8 yd B. n = 10.7 yd C. n = 6 yd D. n = 1.5 yd

Mathematics

Solve the problem.During July in Jacksonville, Florida, it is not uncommon to have afternoon thunderstorms. On average, 10.1 days have afternoon thunderstorms. What is the probability that a randomly selected day in July will not have a thunderstorm? Round to two decimal places, if necessary.

A. 0.67 B. 0.9 C. 0.33 D. 0.66

Mathematics