Find the required quantity given the wire that lies along the curve r and has density ?.Moment of inertia Iy about the y-axis, where r(t) = 
i + 3tj, 0 ? t ? 1; 
A. Iy = - 
B. Iy = 
C. Iy = - 
D. Iy = 
Answer: D
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Use the following definitions to determine if the statement is true or false. N = {x : x is a natural number}I = {x : x is an integer}R = {x : x is a real number}W = {x : x is a whole number}Q = {x : x is a rational number}I is a proper subset of N, W, Q, and R.
A. True B. False
Use symbols to write the expression and then evaluate it.Three squared plus nine
A. 32 - 9; 18 B. 92 - 3; 78 C. 92 + 3; 84 D. 32 + 9; 18
Find the center and radius of the circle with the given equation. (x + 5)2 + (y - 10)2 = 144
A. Center (-5, 10), r = 144 B. Center (10, -5), r = 144 C. Center (-5, 10), r = 12 D. Center (10, -5), r = 12
Find the range of the given function.f(x) = 3x2 + 24x + 46
A. [-4, ?) B. (-?, 4] C. [-2, ?) D. (-?, 2]