Multiply. Express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (t2 - 8)i + (2t - 2)j + 4k
A. T = 
i + 
j; N = 
i + 
j
B. T = 
i + 
j; N = 
i - 
j
C. T = 
i - 
j; N = - 
i - 
j
D. T = 
i + 
j; N = 
i - 
j
Mathematics
List the ordered pairs of the points on the grid. x
A. G = (3, 4), H = (-4, 4) B. G = (3, -4), H = (-6, 4) C. G = (-4, 22), H = (4, -6) D. G = (3, -4), H = (4, -6)
Mathematics
Divide.
A. 0.00167 B. 0.0167 C. 16.7 D. 1.67
Mathematics
Multiply or divide as indicated. Make sure that your answer is reasonable by estimating first. 139.6 × 0.56
A. 78.287 B. 78.176 C. 78.286 D. 78.276
Mathematics