PLEASE ANSWER QUICK!! in ms. renault's classroom, 3/5 of the students play chess. of the students who play chess, 5/6 also play checkers. if there are 30 students in her class, how many play chess and checkers?

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints