Find the matrix product AB, if it is defined.A = 
, B = 
.
A. 
B. 
C. AB is undefined.
D. 
Answer: D
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Provide an appropriate response.Between 1998 and 2002, the average rate of inflation for a particular country was about 4% per year. If a cart of groceries cost $83 in 1998, what did it cost in 2002?
A. $112.92 B. $100.98 C. $97.10 D. $93.36
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) ? C'
A. All cola soda pops not in cans B. All diet and all cola soda pops not in cans C. All non-diet, non-cola soda pops not in cans D. All diet cola soda pops not in cans
Solve. Use interval notation to express the range.Parts for an automobile repair cost $200. The mechanic charges $25 per hour. If you receive an estimate for at least $350 and at most $450 for fixing the car, what is the time interval that the mechanic will be working on the job?
A. [1, 6] B. [1, 10] C. [6, 10] D. [14, 18]
Solve the inequality and draw a number line graph of the solution.
< 
A. x < 
 |
B. x >
 |
C. x <
 |
D. x >
 |