Surely you know that the area under a curve f(x) between two points a and b can be calculated using , where F(x) is an antiderivative of f(x)...
I have two questions here.
1. Find area of region that lies under curve y=(3x+4)^{1/2 }over 0<x<4
(Those are less than or equal to signs)
2. It is estimated that t days from now a farmers crop will be increasing at the rate of .3t^{2}+.6t+1 bushels per day. By how much will the value of the crop increase during the next 5 days if the market price remains fixed at $3 a bushel?
If you can do step by step, I really don't understand this.