Solve the system of linear equations using the Gaussian elimination method. If there is no solution, state so; if there are infinitely many solutions, find two of them.
What will be an ideal response?
z = any value, x = -4z - 5, y = -3z -2;
two possible solutions: x = -5, y = -2, z = 0 and x = -9, y = -5, z = 1
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Graph the equation using a graphing utility. Use a graphing utility to approximate the intercepts rounded to two decimal places, if necessary. Use the TABLE feature to help establish the viewing window.y = 3x2 - 19
A. (0, -19), (2.52, 0) B. (0, 19), (-2.52, 0), (2.52, 0) C. (0, -19), (-2.52, 0), (2.52, 0) D. (0, -19), (-2.51, 0), (2.51, 0)
Ace Hardware's economic ordering quantity (EOQ) is 1,000 widgets, its total demand is 20,000 units per period, its carrying costs per unit are 20 percent of the inventory value, each inventory item costs $4 to purchase, and it costs $20 each time inventory is order. What is Ace's total inventory costs if it orders the EOQ amount?
A. $1,200 B. $1,000 C. $16,400 D. $8,400 E. $800
Write the following as an equation, using x for the unknown number. Then solve.Four times a number added to 9 times the number equals 52. Find the number.
A. 4(x + 9) = 52x; 0.8 B. 4x - 9x = 52; -5.8 C. 4x + 9x = 52; 4 D. 4x(9 + x) = 52; 5.8
Subtract.
A. 164 B. 260 C. 264 D. 1,028