Rewrite the inequality using interval notation. Then graph the inequality.0 ? x ? 4
A. [0, 4]
B. (0, 4]
C. (0, 4)
D. [0, 4)
Answer: A
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Perform the indicated operations.A current of 2.64 e-1.48j amperes flows in a given circuit. Express this current in polar form.
A. -1.48 (cos 2.64° + j sin 2.64° ) B. -1.48 (cos 151.3° + j sin 151.3° ) C. 2.64 (cos (-1.48°) + j sin (-1.48° )) D. 2.64 (cos (-84.8°) + j sin (-84.8° ))
Find the LCD of the given rational expressions.
; 8
A. 7x + 4 B. 24 C. 7x D. 56x + 32
Find the system of equations to model the problem. DO NOT SOLVE THIS SYSTEM.In producing three types of bricks: face bricks, common bricks, and refractory bricks, a factory incurs labor, material, and utility costs. To produce one pallet of face bricks, the labor, material, and utility costs are $50, $75, and $35, respectively. To produce one pallet of common bricks, the labor, material, and utility costs are $50, $60, and $30, respectively, while the corresponding costs for refractory bricks are $75, $100, and $45. In a certain month the company has allocated $12,000 for labor costs, $14,500 for material costs and $6,000 for utility costs. How many pallets of each type of brick should be produced in that month to exactly utilize these allocations? Set up a system of linear equations,
letting x, y, and z be the number of pallets of face, common, and refractory bricks, respectively, that must be produced in that month. What will be an ideal response?
Add or subtract as indicated.13 - (-17) + (-5)
A. -9 B. 25 C. -1 D. 1