A geometric sequence is given. Find the common ratio and write out the first four terms.{tn} = 
A. r = 
n; t1 = 
, t2 = 
, t3 = 
, t4 = 
B. r = 
n; t1 = 
, t2 = 
, t3 = 
, t4 = 
C. r = 
; t1 = 
, t2 = 
, t3 = 
, t4 = 
D. r = 
; t1 = 
, t2 = 
, t3 = 
, t4 = 
Answer: C
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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 
of a year after it is manufactured?
A. 85% B. 52% C. 18% D. 72%
x? = x ? xy , y? = ?0.6y + 0.2xy
What will be an ideal response?
Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 150 m. The hypotenuse is 50 m longer than the length of the longer leg. How long is the longer leg?
A. 250 m B. 300 m C. 200 m D. 150 m
Perform the operation and write the result in the standard form.(-4 - 6i) - (6 - i)
A. -10 + 5i B. 10 + 5i C. -10 - 5i D. -10 - 6i