Evaluate the sum using the given information.x1 = 3, x2 = 2, x3 = 1, x4 = 4, and x5 = -2
A. 32
B. 45
C. 31
D. 24
Answer: D
Mathematics
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Find the arc length parameter along the curve from the point where t = 0 by evaluating 
r(t) = (1 + 2t)i + (1 + 7t)j + (4 - 4t)k
A. 
t
B. 
t
C. 2
t
D. 
t
Mathematics
Use a calculator to find an approximation to the nearest ten-thousandth.10-1.0443
A. 0.0090 B. 0.0903 C. 0.9030 D. 87.3025
Mathematics
Multiply.(0.5)(0.9)
A. 0.045 B. 0.45 C. 4.5 D. 0.0045
Mathematics
Multiply. Write the answer as a mixed number as needed.5
? 
A. 1
B. 5
C. 
D. 1
Mathematics