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21
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If cap t is equal to the 2 by 2 matrix, row 1, column 1, 23 column 2, negative 38 row 2, column 1, 17 column 2, negative 6 , then what is negative 10 times cap t ?

A
the 2 by 2 matrix row 1, 230 380 row 2, 170 60
B
the 2 by 2 matrix, row 1, column 1, negative 230 column 2, 380 row 2, column 1, negative 170 column 2, 60
C
the 2 by 2 matrix, row 1, column 1, 33 column 2, negative 48 row 2, column 1, 27 column 2, negative 16
D
the 2 by 2 matrix, row 1, column 1, 13 column 2, negative 48 row 2, column 1, 7 column 2, negative 16
22
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Which expression is equivalent to log sub 5 times open paren x over 4 close paren squared ?

A
2 log sub 5 x minus the log base 5 of 4
B
2 log sub 5 x minus 2 log sub 5 4
C
2 log sub 5 x plus the log base 5 of 4
D
2 log sub 5 x plus the log base 5 of 16
23

Which of the following probabilities is the greatest for a standard normal distribution?

A
cap p times open paren 0 point 5 is less than or equal to z comma z is less than or equal to 1 point 5 close paren
B
cap p times open paren negative 1 point 5 is less than or equal to z comma z is less than or equal to negative 0 point 5 close paren
C
cap p times open paren negative 0 point 5 is less than or equal to z comma z is less than or equal to 0 point 5 close paren
D
cap p times open paren 1 point 5 is less than or equal to z comma z is less than or equal to 2 point 5 close paren
24

What is the difference? the fraction with numerator x plus 5 and denominator x plus 2 minus the fraction with numerator x plus 1 and denominator x squared plus 2 x

A
the fraction with numerator x squared plus 4 x minus 1 and denominator x times open paren x plus 2 close paren
B
the fraction with numerator x squared plus 4 x plus 1 and denominator x times open paren x plus 2 close paren
C
the fraction with numerator 4 and denominator negative 1 times open paren x squared plus x minus 2 close paren
D
the fraction with numerator x squared plus 6 x plus 1 and denominator x times open paren x plus 2 close paren
25

Which expression is equivalent to the fraction with numerator 4 A plus 4 and denominator 2 A times the fraction with numerator A squared and denominator A plus 1 ?

A
the fraction with numerator 6 A squared and denominator A plus 1
B
2 A
C
the fraction with numerator 2 times open paren A plus 1 close paren squared and denominator A cubed
D
6 A
27

Which graph represents the function f of x is equal to the fraction with numerator 5 minus 5 x squared and denominator x squared ?

A
Image with description A coordinate plane with a graph showing two branches. The branch on the left approaches y equals 5 as x approaches negative infinity from the right and approaches infinity as x approaches 0 from the left. The branch on the right approaches infinity as x approaches 0 from the right and approaches y equals 5 as x approaches infinity from the left.
B
Image with description A coordinate plane with a graph showing two branches. The branch on the left approaches the x-axis as x approaches negative infinity from the right and approaches negative infinity as x approaches negative 5 from the left. Its turning point is near (negative 7 comma negative 2). The branch on the right approaches infinity as x approaches negative 5 from the right and approaches the x-axis as x approaches infinity from the left. Its turning point is near (negative 3 comma 2).
C
Image with description A coordinate plane with a graph showing two branches. The branch on the left approaches y equals negative 5 as x approaches negative infinity from the right and approaches infinity as x approaches 0 from the left. The branch on the right approaches infinity as x approaches 0 from the right and approaches y equals negative 5 as x approaches infinity from the left.
D
Image with description A coordinate plane with a graph showing two branches. The branch on the left approaches the x-axis as x approaches negative infinity from the right and approaches negative infinity as x approaches 5 from the left. Its turning point is near (3 comma negative 2). The branch on the right approaches infinity as x approaches 5 from the right and approaches the x-axis as x approaches infinity from the left. Its turning point is near (7 comma 2).
28

What are the domain and range of f of x is equal to 2 times open paren 3 to the x th power close paren ?

A
domain: open paren 0 comma infinity close paren ; range: open paren negative infinity comma infinity close paren
B
domain: open paren negative infinity comma infinity close paren ; range: open paren 0 comma infinity close paren
C
domain: open paren 2 comma infinity close paren ; range: open paren negative infinity comma infinity close paren
D
domain: open paren negative infinity comma infinity close paren ; range: open paren 2 comma infinity close paren
30

What is the true solution to natural log 20 plus natural log 5 is equal to 2 ln x ?

A
x is equal to 50
B
x is equal to 100
C
x is equal to 5
D
x is equal to 10
31

Which of the following is the inverse of y is equal to 12 to the x th power ?

A
y is equal to log sub 12 1 over x
B
y is equal to the log base 1 over 12 of x
C
y is equal to the log base x of 12
D
y is equal to the log base 12 of x
35

Which graph represents y is equal to square root of x ?

A
Image with description On a coordinate plane x and y axes range from negative 9 to 9 in increments of 1. A graph of cubic function passes through points (negative 8 comma negative 2), (0 comma 0), and (8 comma 2). The curve has a point of inflection at the origin with coordinates (0 comma 0).
B
Image with description On a coordinate plane x and y axes range from negative 9 to 9 in increments of 1. A graph of cubic function passes through (negative 2 comma negative 8), (negative 1 comma negative 1), the origin, (1 comma 1), and (2 comma 8). The point of inflection is at the origin.
C
Image with description On a coordinate plane x and y axes range from negative 9 to 9 in increments of 1. The graph has a parabola opening upwards. Its vertex is (0 comma 0). It passes through (negative 2 comma 4) and (2 comma 4).
D
Image with description On a coordinate plane x and y axes range from negative 9 to 9 in increments of 1. The curve originates from the origin and passes through points (3 comma 3) and (8 comma 3) in the first quadrant.
38

Many delivery trucks feature a "How Am I Driving?” sticker on the rear bumper, along with a phone number. This sticker allows drivers to report erratic driving by the truck driver or offer a compliment if they like. A dispatcher at the trucking station accepts calls and records information from those who call the phone number. The dispatcher reports that in the past month, 218 calls were received. Of those calls, 178 reported negative driving behaviors by the truck drivers. How might this data-collection method produce bias in obtaining an estimate of all drivers who are satisfied with the company’s truck drivers?

A
This sample may lead to voluntary response bias because drivers can choose to call the phone number and register an opinion.
B
The sample may lead to response bias because some who call the phone number may not provide a truthful opinion.
C
This sample may lead to undercoverage bias because some drivers will be more likely to be included in the sample.
D
This sample may lead to nonresponse bias because many drivers may not call the phone number.
39

What is the product? the 1 by 3 row matrix column 1 negative 1 column 2 2 column 3 4 times the 3 by 3 matrix row 1, 3 6 1 row 2, 2 4 0 row 3, 0 6 2

A
the 1 by 3 row matrix 1 26 7
B
the 3 by 1 column matrix 1 26 7
C
the 3 by 1 column matrix 7 38 9
D
the 1 by 3 row matrix 7 38 9
40

Which function can be used to compute the approximate area, in square inches, of a stop sign if it has a side length of x inches?

A
f of x is equal to 4 point 8 to the x th power
B
f of x is equal to 4 point 8 x squared
C
f of x is equal to 4 to the x th power
D
f of x is equal to 4 x squared
41

Which equation is represented by the graph?

A
y is equal to 1 eighth e to the x th power
B
y is equal to 2 e to the x th power
C
y is equal to 1 half e to the x th power
D
y is equal to 8 e to the x th power

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