Match the vector equation with the correct graph.
r(t) = 2 cos ti + sin tk; 0 ? t ? ?
A. Figure 7
B. Figure 2
C. Figure 4
D. Figure 6
Answer: C
Mathematics
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Find the intersection.8x - 4y - 6z = 6, -6x - 4y + 3z = 7
A. x = -36t - 
, y = 12t - 
, z = -56t
B. x = 2016t - 4, y = -672t - 92, z = 56t
C. x = 36t + 4, y = -12t + 92, z = 56t
D. x = -36t - 4, y = 12t + 92, z = 56t
Mathematics
Express in scientific notation.490,000
A. 4.9 × 104 B. 4.9 × 10-5 C. 4.9 × 105 D. 4.9 × 10-4
Mathematics
Determine the integral by making an appropriate substitution.
dx
[Hint: 
csc x = -cot x csc x] Enter your answer with any coefficients in front as integers or reduced fractions of form 
. No parentheses around arguments of functions.
What will be an ideal response?
Mathematics
Multiply. 
Mathematics