Factor out the greatest common factor with a negative coefficient.-30x + 10
A. -10(3x + 1)
B. -5(6x - 2)
C. -10(3x - 1)
D. -2(15x - 5)
Answer: C
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Solve by the elimination method.x + 4y = 157x + y = 16
A. 
B. 
C. 
D. 
Find the indicated term of the sequence.an = 2n - 3; a10
A. -10 B. 23 C. 20 D. 17
Solve the problem.The volume of a sphere is given by the formula V = 
?r3 where r is the radius. A tumor is approximately spherical in shape. Use V'(r) to estimate the increase in volume of the tumor if its radius increases from 
to 
. Round to the nearest 100 mm3.
A. 200 mm3 B. 2900 mm3 C. 1600 mm3 D. 2100 mm3
Determine whether the function is continuous at the given point c. If the function is not continuous, determine whether the discontinuity is removable or nonremovable. f(x) = tan x; c = 
A. Continuous
B. Discontinuous; removable define f
= 1
C. Discontinuous; removable define f
= 0
D. Discontinuous; nonremovable