Chapter 13.4, Problem 43E

Use the definite integral to find the area between the x-axis and f(x) over the indicated interval. Check first to see if the graph crosses the x-axis in the given interval. f(x)=8-2x²: [0,4] Set up the integral (or integrals) needed to compute this area. Use the smallest possible number of integrals. Select the correct choice below and fill in the answer boxes to ○ A. dx B. 2 S 8-2x² dx+ 4 S 2 8-2x2 dx C. dx + S dx For the interval [0,4], the area between the x-axis and f(x) is (Type an integer or a simplified fraction.)

Pollution from a factory is entering a lake. The rate of concentration of the pollutant at time t is 5 given by P'(t) = 126t², where t is the number of years since the factory started introducing pollutants into the lake. Ecologists estimate that the lake can accept a total level of pollution of 600 units before all the fish life in the lake ends. Can the factory operate for 2 years without killing all the fish in the lake? Set up the integral that would determine the pollution level after 2 years. 2 5 126t 2 dt Can the factory operate for 2 years without killing all the fish in the lake? Thee factory can operate for 2 years without killing all the fish in the lake because the value of the integral is , which is less than 600. (Round to the nearest integer as needed.)

Use the definite integral to find the area between the x-axis and f(x) over the indicated interval. Check first to see if the graph crosses the x-axis in the given interval. f(x)=4x-12; [2,6] The area between the x-axis and f(x) is (Type an integer or a simplified fraction.)

Evaluate the definite integral. 70 √5√2-6 3 dz 70 S 5√2-6 dz= 7 江 (Type an integer or decimal rounded to two decimal places as needed.)

Find the area between the following curves. 2 y=x³-x²+x+4; y=5x² -7x+4 The area between the curves is (Simplify your answer.) ...

Find the area of the shaded region. 3- -1 -3- Q The total area of the shaded regions is (Simplify your answer.) y=9-x² Q 1 3 5 X

Find the area of the region bounded by the graphs of the given equations. y=17x, y=x² ... The area is (Type an integer or a simplified fraction.)

Find the area between the curves. y=x-26, y=9-2x ... The area between the curves is (Type an integer or decimal rounded to the nearest tenth as needed.)

You are constructing a box out of cardboard with the dimensions 5 m by 6 m. You then cut equal-size squares from each corner so you may fold the edges. Let x be the side length of each square. Find that maximizes the volume of the box. Answer exactly. 8 x x H x ४ x ४ ४ m