Solve using the substitution method.x = 5 + -2yx + 2y = 6
A. (- 1, - 7)
B. No solution
C. (- 1, 7)
D. Infinitely many solutions
Answer: B
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Solve the problem.Find the centroid of the region bounded above by the sphere 
and below by the plane 
if the density is constant.
A. 
= 0, 
= 0, 
= 
B. 
= 0, 
= 0, 
= 12
C. 
= 0, 
= 0, 
= 
D. 
= 0, 
= 0, 
= 
Solve the problem. Round to the nearest dollar or tenth of a percent when necessary.A local dealer sells baseballs for $25.00 each. If this is a 13% markup on selling price, find the equivalent markup percent on cost.
A. 85.1% B. 14.9% C. 11.5% D. 13%
Provide an appropriate response.State whether the following situation represents direct variation, inverse variation, or neither: A runner's speed in a race and the time that it takes to run the raceGive a reason for your answer.
What will be an ideal response?
Use l'H
pital's rule to find the limit.
A. 1
B. 0
C. ?
D. 