Given that sin0= 2/5 and 0 < 0<90 , what is the exact value of csc0

Which property is illustrated by the statement given below? raj raj.

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels