Evaluate each of the following expressions by using special right triangles and the unit circle (give exact values), a. sin(4pi/3)
b. cos(11pi/3)
c. sin ( -5pi/6 )
d. cos (-2pi/3)

What is the value of x? enter your answer in the box. photo attached.

The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?