Given tan A=-√5 and cos A >0, find sin A.
PLEASE HURRY AND SHOW WORK

sinA = -

Step-by-step explanation:

Given

tanA = - =

This is a right triangle with opposite = , adjacent = 1 and

hypotenuse h² = ( )² + 1² = 5 + 1 = 6 ⇒ h =

Since tanA < 0 and cosA > 0 then A is in the 4th quadrant where sinA < 0

Then

sinA = - = -

blue marble is 15 times out of 50 = 15/50 reduces to 3/10

landing on tails is 24 out of 50 = 24/50 reduces to 12/25

to find the probability of both multiply together:

3/10 x 12/25 = 3 x 12 / 10 x 25 = 36/250

if you multiplied the numerator and denominator by 10 you get 360/2500.

the answer is 360/2500