Write the system of equations that corresponds to the augmented matrix.
A. 
B. 
C. 
D. 
Answer: D
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Write the statement using symbols.The difference 10 less 2 equals 8.
A. 
= 5
B. 10 + 2 = 12
C. 10 - 2 = 8
D. 10 ? 2 = 20
The reliability of a new model of CD player can be described by the exponential function 
where the reliability R is the probability (as a decimal) that the CD player is still working t years after it is manufactured. Round the answer to the nearest hundredth. Then write your answer as a percent.What is the probability that the CD player will still work 4 years after it is manufactured?
A. 9% B. 2% C. 92% D. 27%
Find any excluded values.
A. 5 B. -2, ±5 C. -2, 5 D. ±5
Solve the problem.A carousel has a radius of 20 feet and takes 29 seconds to make one complete revolution. What is the linear speed of the carousel at its outside edge? If necessary, round the answer to two decimal places.
A. 0.69 ft/sec B. 9.11 ft/sec C. 125.66 ft/sec D. 4.33 ft/sec