Find fraction notation for the infinite sum. 6.87878787 . . .
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Graph the function.y = - 
csc (?x)
A. 
B. 
C. 
D. 
Mathematics
Find the indicated probability. A bag contains 15 balls numbered 1 through 15. What is the probability that a randomly selected ball has a number less than 20?
A. 1
B. 
C. 0
D. 
Mathematics
Find the unit vector having the same direction as v.v = 7i
A. u = i
B. u = 7i
C. u = 
i
D. u = 49i
Mathematics
Find the exact value. Do not use a calculator.cos 30°
A. 
B. 
C.
D. 
Mathematics