Solve.The pitch of a screw is the distance between threads. With each complete rotation of the screw, it goes in or out a distance equal to its pitch. How far will a screw with a pitch of 
in. go into a piece of wood when it is turned 10 complete rotations clockwise?
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Answer: C
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Perform the indicated operation.(3a + 10c)(3a - 10c)
A. 3a2 - 10c2 B. 9a2 - 100c2 C. 9a2 + 60ac - 100c2 D. 9a2 - 60ac - 100c2
A certain country's income distribution is described by the function
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Sketch the Lorentz curve for this function.
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Compute 
and interpret your results.
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A. 
The lowest 60 percent of the people receive 37.3 percent of the total income.
The lowest 80 percent of the people receive 64.9 percent of the total income.
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B.
The lowest 80 percent of the people receive 37.3 percent of the total income.
The lowest 60 percent of the people receive 64.9 percent of the total income.
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C.
The lowest 60 percent of the people receive 37.3 percent of the total income.
The lowest 80 percent of the people receive 64.9 percent of the total income.
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Find the vertex form for the quadratic function. Then find each of the following:(A) Intercepts(B) Vertex(C) Maximum or minimum(D) Rangen(x) = -x2 + 8x - 7
A. Standard form: n(x) = -(x + 4)2 + 9 (A) x-intercepts: -7, - 1; y-intercept: -7 (B) Vertex (4, 9) (C) Maximum: 9 (D) y ? 9 B. Standard form: n(x) = -(x - 4)2 + 9 (A) x-intercepts: 1, 7; y-intercept: -7 (B) Vertex (4, 9) (C) Maximum: 9 (D) y ? 9 C. Standard form: n(x) = -(x - 4)2 + 9 (A) x-intercepts: 1, 7; y-intercept: -7 (B) Vertex (-4, -9) (C) Maximum: 9 (D) y ? 9 D. Standard form: n(x) = -(x + 4)2 + 9 (A) x-intercepts: 1, 7; y-intercept: -7 (B) Vertex (4, 9) (C) Minimum: 9 (D) y ? 9
Show that B is the inverse of A. Show all your work.
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What will be an ideal response?