Find the prime factorization of the given composite number.679
A. 7 ? 95
B. 7 ? 97
C. 7 ? 7
D. 7 ? 7 ? 97
Answer: B
Mathematics
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Which fraction is in simplest form for the fraction: ?
?
A.
?
B.
?
C.
?
D.
?
E.
?
Mathematics
Find the unit tangent vector T and the principal unit normal vector N. r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 2tk
A. T = 
i - 
j + 
k; N = 
i + 
j
B. T = 
i + 
j + 
k; N = 
i + 
j
C. T = 
i - 
j + 
k; N = 
i + 
j
D. T = 4
i - 4
j + 2k; N = 3
i + 3
j
Mathematics
Find a rectangular-coordinate equation for the curve by eliminating the parameter.  figure 1.png)
 figure 2.png)
Mathematics
Use the root test to determine if the series converges or diverges.
A. Diverges B. Converges
Mathematics