A) What is the value of cos 60° as a fraction in its simplest form? b)
60°
8 cm
5 cm
b
Show that b = 7

Ared balloon starts at 7.3 meters off the ground and rises at 2.6 meters per second. a blue balloon starts at 12.4 meters off the ground and rises at 1.5 meters per second. when will the balloons be at the same height?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.