Provide an appropriate response.Under what conditions must the inequality symbol be reversed when solving an inequality?
What will be an ideal response?
When multiplying or dividing by a negative number.
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Evaluate the line integral of f(x,y) along the curve C.f(x, y) = x2 + y2, C: y = -3x - 3, 0 ? x ? 3
A. 198
B. 66
C. 378
D. 198
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable.x + 3y - 2z - w = 104x + y + z + 2w = 10-3x - y - 3z - 2w = -7 x - y - 3z - 2w = -3
A. {(0, 5, -5, 4)} B. {(1 + w, 3 - 2w, -1 + 2w, w)} C. {(10, 10, -7, -3)} D. {(1, 3, -1, 2)}
Provide an appropriate response.A manufacturer produces two products, A and B. For each unit of A sold the profit is $8. For each unit of B sold the profit is $11. From past experience it has been found that 25 percent more of A can be sold than of B. Next year the manufacturer desires a total profit of $42,000. How many units of each product must be sold?
What will be an ideal response?
Solve the problem.A gas station sells 4820 gallons of regular unleaded gasoline on a day when they charge $1.35 per gallon, whereas they sell 3893 gallons on a day that they charge $1.40 per gallon. Find a linear equation for gallons sold (y) at a price x.
A. y = -18,540x + 29,832.8 B. y = -18,540x + 29,865 C. y = -18,540x + 29,827.2 D. y = -18,540x + 29,849