Find the curvature of the space curve.r(t) = -3i + (10 + 2t)j + (t2 + 1)k
A. ? = 
B. ? = 
C. ? = 
D. ? = - 
Answer: B
Mathematics
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Find the exact value of the real number y.y = arctan 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.If one pulley is 8 inches bigger in diameter than another and they are connected by a belt, how big are the pulleys if the smaller pulley turns at 120 rpm and the larger turns at 40 rpm?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Answer the question.A positive number multiplied by two negative numbers and then divided by a negative number is .
Fill in the blank(s) with the appropriate word(s).
Mathematics
Simplify the expression.(x + 8)(x - 8)(4x + 2)
A. 4x3 + 2x2 + 256x + 128 B. 4x3 + 66x2 + 288x + 128 C. 4x3 - 62x2 + 224x + 128 D. 4x3 + 2x2 - 256x - 128
Mathematics