Solve 1,2 ,3 ,4 and 5 in 20 minutes as soon as possible

Exercise 1: Awater tank has the shape of an inverted circular cone with base radius of 4 m and height 8 m. If water is being pumped into the tank at a rate of 3 cubic meters per minute, find the rate at which the water level is rising when the water is 4 m deep. Exercise 2: Using the guidelines of curve sketching, sketch the graph of f(x) = 1 Exercise 3: Find f 1 4x3x5dx. Exercise 4: Evaluate the integral 4 tan Tdm. 4 Exercise 5: Find the area enclosed by the curve y = 5 c and the curve y 3.