Use estimation to select the best response. Do not calculate.
?
The probability of correctly guessing a telephone number is about
?

A. 1 out of 100
B. 1 out of 10
C. 1 out of 1,000,000
D. 1 out of 10,000
E. 1 out of 1,000

Answer: C

Mathematics

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The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r(1 - 2 cos ?) = 1

A.  = 2 + x
B.  = 1 + 2x
C. x2 + y2 = 2 + x
D. x2 + y2 = 1 + 2x

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Mathematics

Factor the trinomial completely.3x3 + 12x2 - 36x

A. 3x(x - 6)(x + 2) B. 3x(x + 6)(x + 2) C. 3x(x - 6)(x - 2) D. 3x(x + 6)(x - 2)

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Mathematics

Write the best-fit linear model for the data.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs. Find a linear function that approximates a student's current GPA as a function of his or her entering GPA.Entering GPACurrent GPA   

A. y = 2.51 + 0.329x B. y = 5.81 + 0.497x C. y = 4.91 + 0.0212x D. y = 3.67 + 0.0313x

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Mathematics

Graph the line through the given point with the given slope.(0, -4) , m = 

A.

B.

C.

D.

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Mathematics