Decide whether the given number is a solution of the given equation.Is 12 a solution of k - 9 = 3 ?
A. Yes
B. No
Answer: A
Mathematics
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Let U = {all soda pops}, A = {all diet soda pops},B = {all cola soda pops}, C = {all soda pops in cans},and D = {all caffeine-free soda pops}. Describe theset in words.A ? B ? D
A. All diet and all cola and all caffeine-free soda pops B. All diet, caffeine-free cola soda pops C. All diet, caffeine-free cola pops in cans D. All soda pops not in cans
Mathematics
Solve the problem.Find the mass of the solid in the first octant between the spheres 
and 
if the density at any point is inversely proportional to its distance from the origin.
A. 
k?
B. 40k?
C. 
k?
D. 5k?
Mathematics
Find the derivative.r = 
- 
A. 
- 
B. - 
+ 
C. 
- 
D. - 
+ 
Mathematics
Determine whether the proportion is true or false.
= 
A. True B. False
Mathematics