Find the curvature ? for the given function.r(t) = -3i + (10 + 2t)j + (t2 + 4)k
A. ? = - 
B. ? = 
C. ? = 
D. ? = 
Answer: B
Mathematics
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Find the median of the set of numbers.Number of steaks served: 1, 46, 10, 31, 37, 8, 29,
A. 10 steaks B. 29 steaks C. 31 steaks D. 23 steaks
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Subtract.-32 - 49
A. 17 B. 81 C. -81 D. -17
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Perform the indicated operation. Write the answer without exponents.(8.4 × 103) × (6.6 × 10-2)
A. 55.44 B. 55.44 × 101 C. 55.44 × 10-6 D. 554.4
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, sin ? > 0Find cos 
.
A. - 
B. 
C. - 
D. 
Mathematics