Check Point 4 Use matrices to solve the system:

Want to see the full answer?
Check out a sample textbook solution
Chapter 8 Solutions
PRECALCULUS CUSTOM W/MYMTHLAB >IC<
- Let f(x)=4excosxf'(x)=arrow_forwardThe graph of the function f in the figure below consists of line segments and a quarter of a circle. Let g be the function given by x g(x) = __ f (t)dt. Determine all values of a, if any, where g has a point of inflection on the open interval (-9, 9). 8 y 7 76 LO 5 4 3 2 1 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 ♡. -1 -2 3 -4 56 -5 -6 -7 -8 Graph of f 4 5 16 7 8 9 10arrow_forwardThe areas of the regions bounded by the graph of the function f and the x-axis are labeled in the figure below. Let the function g be C defined by the equation g(x) = [* f(t)dt. What is the maximum value of the function g on the closed interval [-7, 8]? 17 y Graph of f 00 8 76 5 4 3 2 1 -10 -9 -8 -7 -6 -5 -4 -3-2-1 -2 702 4 1 21 3 4 568 -4 -5 --6 -7 -8 x 5 6 7 8 9 10 17arrow_forward
- A tank holds a 135 gal solution of water and salt. Initially, the solution contains 21 lb of salt. A salt solution with a concentration of 3 lb of salt per gal begins flowing into the tank at the rate of 3 gal per minute. The solution in the tank also begins flowing out at a rate of 3 gal per minute. Let y be the amount of salt present in the tank at time t. (a) Find an expression for the amount of salt in the tank at any time. (b) How much salt is present after 51 minutes? (c) As time increases, what happens to the salt concentration?arrow_forwardSolve please and thanks!arrow_forwardSolve please and thanks!arrow_forward
- The graph of the function f in the figure below consists of line segments and a semicircle. Let g be the function given by x 9(x) = * f(t)dt. Determine all values of r, if any, where g has a relative minimum on the open interval (-9, 9). y 8 7 6 5 4 32 1 Graph of f x -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 8 9 10 -1 -2 -3 -4 -5 -6 678 -7 -8arrow_forwardSolve pleasearrow_forwardA particle moves along the x-axis for 0 < t < 18 such that its velocity is given by the graph shown below. Find the total distance traveled by the particle during the time interval 4 ≤ t ≤ 8. 8 y 7 6 5 4 32 1 6 7 -1 1 2 3 4 5 -1 -2 -3 -4 56 -6 -8 8 00 Graph of v(t) x 9 10 11 12 13 14 15 16 17 18 19arrow_forward
- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage LearningElementary Linear Algebra (MindTap Course List)AlgebraISBN:9781305658004Author:Ron LarsonPublisher:Cengage Learning
- Algebra for College StudentsAlgebraISBN:9781285195780Author:Jerome E. Kaufmann, Karen L. SchwittersPublisher:Cengage Learning





