Solve the equation.-8x - 16 + 9x = -9
A. 25
B. -25
C. -7
D. 7
Answer: D
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Write a formula to express the relationship. Use k as the constant of variation.The force of attraction between an object of fixed mass and a second object of mass m varies directly as m and inversely as the square of the distance d between the two objects.
A. F = 
B. F = kmd2
C. F = 
D. F = 
Solve the problem.Alan is building a garden shaped like a rectangle with a semicircle attached to one short side along its diameter. The diameter of the semicircle is equal to the width of the short side of the rectangle. If he has 20 feet of fencing to go around the garden, what dimensions will give him the maximum area in the garden?
A. width = 
? 2.8, length = 5.6
B. width = 
? 3.6, length = 5.4
C. width = 
? 5.6, length = 7.2
D. width = 
? 5.6, length = 2.8
Determine whether or not the function is one-to-one.f(x) = 3x2 + x
A. No B. Yes
Write a numerical expression for the phrase and simplify it.9 subtracted from the product of -9.8 and 8.4
A. [9 + (-9.8)](8.4); -6.72 B. 9 - (-9.8)(8.4); 91.32 C. (9)(-9.8)(8.4); -740.88 D. (-9.8)(8.4) - 9; -91.32