Find the cosine of
TU = 5

TS = sqrt(57)

US = x

Please help, I had a hard time understanding in class

And employees salary increase by $4500 which represents a 15% raise what is the employees new salary

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

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?