Round the number as indicated.1627 to the nearest thousand
A. 3000
B. 1890
C. 2000
D. 2100
Answer: C
Mathematics
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Rewrite the following fraction in two equivalent forms.
A. 
, 
B. 
, - 
C. 
, - 
D. 
, - 
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
Factor the special products.y2 - u2
A. (y2 - u)(y2 + u) B. (y - u)(y + u) C. (y - u)(y - u) D. prime
Mathematics
Convert the angle in radians to degrees.
A. 495° B. 164° C. 990° D. 65?°
Mathematics