If the sin 90â° = 1, then the cos 0â° = a. 0, because the angles are complementary b. 1 over 2, because the angles are complementary c. square root 3 over 2, because the angles are complementary d. 1, because the angles are complementary

Sawsan recorded the favorite sport of students at her school. she surveyed 200 students. how many students chose tennis?

Which of the following values have 3 significant figures? check all that apply. a. 10.1 b. 100.05 c. 120 d. 129

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)