Find the regression line for the given data. Round to two decimal places, if necessary.
A. y = 0.95x - 11.8
B. y = 0.95x + 11.8
C. y = 1.05x + 11.8
D. y = 1.05x - 11.8
Answer: D
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Solve the problem.The formula for the volume of a wire is ?r2h, where r is the radius of the wire and h is the length. Find the volume of a wire if 
units and 
units.
A. 30,000 units3 B. 29,800 units3 C. 129 units3 D. 130 units3
Solve the problem.A bookstore is having a sale. All books included in the sale have a colored sticker on them to indicate the sale price. There are green stickers, red stickers, and orange stickers. Bob, Sue, and Fred each make purchases of books that are on sale. Each row of the table gives information about the numbers of book purchases and the total cost of the purchase (before taxes).
Use this information to set up a matrix equation of the form 
which can be solved to determine the price for each type of sale book. Solve this matrix equation to find the price of a
book with an orange sticker.Use the fact that for A = 
, A-1 = 
.
A. $5.21
B. $5.32
C. $4.96
D. $5.79
Graph the solution set of the inequality in the rectangular coordinate plane.?y + 3? < 2
A. 
B. 
C. 
D. 
Graph the given functions on the same rectangular coordinate system. Describe how the graph of g is related to the graph of f.f(x) = x, g(x) = x + 1
A. g shifts the graph of f vertically up 1 unit
B. g shifts the graph of f vertically up 1 unit
C. g shifts the graph of f vertically down 1 unit
D. g shifts the graph of f vertically down 1 unit