In a right triangle ABC, C is the right angle. What does cos A equal 1: cos(B)
2: both A and C
3: Cos(90-A)
4: sin(90-A)​

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b

Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?