Practice 4 1. Given the graph below, use 5 rectangles to find an estimate for the area under the graph from x = 0 to x = 10. Find lower and upper estimates for the area. 10 61 2 2 3 6 8 9 10 x 2. Find the area of the region bounded by the curves y = x +x and y = 2x2 +2x. 3. Determine whether each integral is convergent or divergent. Evaluate those that are convergent. 1 * ( Inx ) dx 4. Evaluate the definite integral. P ( 5 + 4 + 2)du a. 11 + In3 b . 5 C. 3 d. 32 3 + In 3 e. 5. The way Professor Waner drives, he burns gas at the rate of 1 -e gallons each hour, t hours after a fill-up. Find the number of gallons of gas he burns in the first 13 hours after a fill-up. Please round the answer to the nearest gallon. 14 gallons b. 17 gallons C, 13 gallons d. 11 gallons e . 16 gallons