Which of the following are true? Select all that apply. A. tan(theta)= cos(theta)/sin(theta)
B. cot(theta)= cos(theta)/sin(theta)
C. sec(theta)= 1/sin(theta)
D. csc(theta)= 1/cos(theta)
E. sec(theta)= tan(theta)/sin(theta)

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. what is the area of the paper that is left ? use 3.14 for pi

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)

Which equation can be solved to find one of the missing side lengths in the triangle? cos(60o) = cos(60o) = cos(60o) = cos(60o) = mark this and return