Find the x-intercept of the graph of the equation 
.
?
A. (0, -6)
B. (0, 6)
C. (6, 0)
D. (-6, 0)
E. (0, -18)
Answer: C
Mathematics
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Solve the problem.Find the centroid of the first-octant portion of a solid ball of radius 1 centered at the origin.
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Mathematics
Determine if the parabola whose equation is given opens upward or downward.y = 2x2 - 2x - 6
A. downward B. upward
Mathematics
Convert between English and Metric System of Units.
0.5 lb = 
oz
A. 12 B. 10 C. 6 D. 8
Mathematics
Solve the problem.It costs $400 to start up a business of selling hot dogs. Each hot dog costs 
to produce. Find the cost function C(x) = mx + b whose input is the number of hot dogs and whose output is the total cost.
A. C(x) = 55x + 400 B. C(x) = 400x + 0.55 C. C(x) = 0.55x + 400 D. C(x) = 0.55x - 400
Mathematics