1. if $2,500 is invested into an account that pays 4% interest compounded monthly how long will it take for the investment to double? 2. find the average rate of change of f(x)= x^2 +2x+1 evaluated at x=1+a and x=1

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Solve -.016x= -16. need solving this

1.based of the diagrams what is the the value of x? 2.how would you verify your answer for x