If i wake at 5:15a. m. and my sister wakes 40 minutes before me. What time does my sister wakes?

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

One of the complementary angles is 4 degrees mor than the other. find the angles (recall that complementary angles are angles whose sum is 90 degrees.) which of the following can not be used to solve the problem if x represents one of the angles? a. 2x-4=90 b. 2x+4=90 c. x+4=90

Quadrilateral abcd is a parallelogram with diagonals that intersect at point e. which of the following statements is true?