Question

Algebra 2B Review of Trig/Statistics

I really need help

Answer 1

`\sin B` is the ratio of the length of the leg opposite angle B to the length of the hypotenuse:

`\sin B=(21)/(29)`

It will be the same as
`\cos A`, which is the ratio of the length of the leg adjacent to angle A to the lenght of the hypotenuse.