Translate the equation into a sentence by using the phrase "varies directly" or "varies inversely". w = 
A. v varies inversely as w.
B. w varies directly as v.
C. v varies directly as w.
D. w varies inversely as v.
Answer: D
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Write the objective function that describes the problem.An office manager needs to buy new filing cabinets. Cabinet A costs $5, takes up 5 square feet of floor space, and holds 7 cubic feet of files. Cabinet B costs $8, takes up 8 square feet, and holds 13 cubic feet. He has only $74 to spend and the office has room for no more than 74 square feet of cabinets. Let x equal the number of cabinet A's bought and y equal the number of cabinet B's bought.
A. z = 10x + 3y B. z = 3x + 10y C. z = 13x + 7y D. z = 7x + 13y
Add or subtract.7
- 4
+ 9
+ 2
A. 16
- 2
B. 16
- 2
C. 14
D. 16
- 2
Identify the property illustrated by the statement. Assume all variables represent real numbers.(9 + 4) + 7 = (4 + 9) + 7
A. Distributive B. Closure C. Associative D. Commutative
Find an equation for the parabola described.Vertex at (1, 6); focus at (1, 5)
A. y = - 
(x - 1)2 + 6
B. y = 
(x - 6)2 + 1
C. y = 
(x - 1)2 + 6
D. y = - 
(x - 6)2 + 1