Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 1.79x - 1.86
B. y = 1.79x + 0.43
C. y = -1.86x + 1.79
D. y = 0.43x + 1.79
Answer: D
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Identify the fraction represented by the shaded region.
A. 
B. 
C. 
D. 
Solve.The radius of a sphere with surface area S is given by the expression 
.a) Simplify the expression.b) Find the radius of a beach ball if its surface area is 288 in.2. Express the answer in radical form.
A. a) 
; b) 
in.
B. a) 
; b) 
in.
C. a) 
; b) 
in.
D. a) 
; b) 
in.
Solve the problem.The Mathematics Department is holding an election for department chair. Each member ranks the candidates from first to third. The preference table below shows the results of the ballots with candidates Clark (C), Jones (J), and Smith (S). 
Determine the winner using the plurality with elimination method and if the winner received a majority of first place votes.
A. Jones; Yes B. Smith; No C. Smith, Yes D. Jones; No
Find an equation for the graph.
A. y = -5 sin (2x)
B. y = -5 sin 
C. y = -5 cos 
D. y = -5 cos (2x)