Given \tan A=\frac{60}{11}tanA= 11 60 and that angle AA is in Quadrant I, find the exact value of \cos AcosA in simplest radical form using a rational denominator.

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Write the rational number in lowest terms 99/-15