Divide. Use bar notation to write repeating decimals. 31.1/4
A. 7.775
B. 77.75
C. 0.07775
D. 0.7775
Answer: A
Mathematics
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Find the indicated sum. Find the sum of the first 8 terms of the geometric sequence: 
, 
, 
, 
, 
, . . .
A. 
B. 
C. 
D. 
Mathematics
Prove that the equation is an identity.
= - cos12k cot 2k
What will be an ideal response?
Mathematics
Factor by grouping.x4 - 2x3 - 6x2 + 12x
A. x(x2 - 2)(x - 6) B. x(x2 - 6)(x - 2) C. x(x2 + 6)(x - 2) D. (x3 - 6)(x + 2)
Mathematics
Answer the question asked. When necessary, round to the nearest hundredth.A boat moves 6 kilometers upstream in the same amount of time it moves 20 kilometers downstream. If the rate of the current is 6 kilometers per hour, find the rate of the boat in still water.
A. 6 km/hr
B. 11
km/hr
C. 8
km/hr
D. 2
km/hr
Mathematics