Cos Ø = 4/5 and sin Ø <0. Identify the quadrant of the terminal side of Ø and find sin Ø. Please help!!

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Identify the parent function that can be used to graph the function f(x)=3(x-9)2