4 questions 1,2,3,6

1. [0/1 Points] DETAILS PREVIOUS ANSWERS SCALCET9 6.1.002. MY NOTES ASK YOUR TEACHER Set up an integral for the area of the shaded region. Evaluate the integral to find the area of the shaded region. (1, e) y = ex (1, 1) y = x 2 3 -1 e - 46 e 3 X Submit Answer 2. [-/1 Points] DETAILS SCALCET9 6.1.005. MY NOTES ASK YOUR TEACHER Find the area of the shaded region. y = x - 15 x 20 10- y = X (4, 4) -6 2 (-4, -4) - 10/ -20 A = Submit Answer 3. [1/3 Points] DETAILS PREVIOUS ANSWERS SCALCET9 6.2.011. MY NOTES ASK YOUR TEACHER Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y = x + 1, y = 0, x = 0, x = 4; about the x-axis V = 6. [0/1 Points] DETAILS PREVIOUS ANSWERS SCALCET9 6.4.007.MI. MY NOTES ASK YOUR TEACHER A force of 20 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching it from its natural length to 6 in. beyond its natural length? W = 15/4 X ft- lb