Determine if the graph of the function is concave up or concave down.y = x2 - 4x + 4
A. Concave down
B. Concave up
Answer: B
Mathematics
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Simplify.
3
A. 
B. 
C. 
D. 
Mathematics
Find the center of mass of the wire that lies along the curve r and has density ?.r(t) = (2 cos 3t)i +(2 sin 3t) j + 6tk, 0 ? t ? 2?; ?(x, y, z) = 3(1 + sin 3t cos 3t)
A. 
B. 
C. 
D. 
Mathematics
Express the number in scientific notation.0.0000000732016
A. 7.32016 × 10-9 B. 7.32016 × 10-7 C. 7.32016 × 10-8 D. 7.32016 × 108
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. x - 4
C. x + 4
D. 
Mathematics