Question 1 1 points Save

If 2 – 3x > -1 and x + 5 > 0, then x could equal each of the following except

-4

-2

0

-5

Question 2 1 points Save

Which of the following is a quadratic equation that has roots of ?

5×2 + 11x – 7 = 0

6×2 – 19x + 10 = 0

5×2 + 11x – 10 = 0

6×2 + 19x – 10 = 0

Question 3 1 points Save

The ideal surface area of a rubber ball shipped from the factory is 50.25 square inches. The company inspector insists that the balls shipped vary no more than 0.3 square inches of this total. To the nearest hundredth, what is the minimum value for the surface area of rubber balls shipped?

50.25

49.95

50.55

none of these

Question 4 1 points Save

The ideal surface area of a rubber ball shipped from the factory is 50.25 square inches. The company inspector insists that the balls shipped vary no more than 0.3 square inches of this total. To the nearest hundredth, what is the maximum value for the surface area of rubber balls shipped?

50.25

49.95

50.55

none of these

Question 5 1 points Save

What correlation exists between student grades and acceptance into college?

positive correlation

negative correlation

no correlation

none of these

Question 6 1 points Save

Which equation has a solution of x = -2?

3x – 9 = -4

2(x + 5) = -3x

7(x + 6) = -100

none of these

Question 7 1 points Save

What are the solutions for |x – 3| = 8?

11 and 0

10 and -5

-5 and 11

none of these

Question 8 1 points Save

Which number is not written in scientific notation?

15.5 x 104

2.567 x 10-5

6.7 x 10-3

none of these

Question 9 1 points Save

Simplify 50 – [3(7 + 4)].

-31

17

27

517

Question 10 1 points Save

Which of the following is a function?

{(-4,1), (1,8), (-4, -2)}

{(-4,1), (1,-8), (-2, -2)}

{(-4,1), (1,-8), (1, -2)}

none of these

Question 11 1 points Save

Find p(-2) if p(x) = 3×4 + 3×3 + 7x – 10.

-10

0

14

46

Question 12 1 points Save

State the possible number of imaginary zeros of f(x) = 10×3 – 4×2 + 2x – 6.

exactly 1

exactly 3

3 or 1

2 or 0

Question 13 1 points Save

What is the relationship between the lines y = 7x + 4 and 2y = 14x + 5?

parallel

perpendicular

neither

Question 14 1 points Save

y = 2×5 + 14 is a linear equation.

True

False

Question 15 1 points Save

Which system has infinitely many solutions?

y = 2x + 6

y – 8x = 21

4x – 4y = 4

x – y = 1

4x + 2y = 5

x – 2y = 9

none of these

Question 16 1 points Save

Which describes the number and type of roots of the equation x3 – 4×2 + 50x + 7= 0?

1 positive, 2 negative

2 positive, 1 negative

3 negative

3 positive

Question 17 1 points Save

For which of the following functions is f(-5) = 2?

f(x) = x + 7

f(x) = 2x – 6

f(x) = 3x + 5

none of these

Question 18 1 points Save

What is the relationship between the lines y = -8x + 5 and y = -3x – 7?

parallel

perpendicular

neither

Question 19 1 points Save

Evaluate i14.

i

-1

-i

1

Question 20 1 points Save

Compare the quantity in Column A with the quantity in Column B.

The quantity in Column A is greater.

The quantity in Column B is greater.

The two quantities are equal.

The relationship cannot be determined on the basis of the information supplied.

Question 21 1 points Save

What is the equation for the line that passes through the point (-3, 5) and has a slope of -3?

y = -3x – 4

y = -3x + 5

y = -3x – 3

none of these

Question 22 1 points Save

The formula for the perimeter of a rectangle is P = 2(l + w). If the width of a rectangle is half its length, how many times its length is its perimeter?

2

3

4

6

Question 23 1 points Save

Find the slope of 5y = 15x + 35.

3

5

15

35

Question 24 1 points Save

Is the statement true or false?

True

False

Question 25 1 points Save

Solve w4 + 2w2 – 24 = 0.

Question 26 1 points Save

What type of polynomial is 79×9?

monomial

binomial

trinomial

none of these

Question 27 1 points Save

What is the GCF of -60×3 + 120×2 + 36x?

6x

12x

-12×2

none of these

Question 28 1 points Save

What is the y-intercept of 3x + y = 7?

-3

1

3

7

Question 29 1 points Save

Write 3,010,000 in scientific notation.

3.01 x 106

3.01 x 105

3.01 x 104

none of these

Question 30 1 points Save

Compare the quantity in Column A with the quantity in Column B.

The quantity in Column A is greater.

The quantity in Column B is greater.

The two quantities are equal.

The relationship cannot be determined on the basis of the information supplied.

Question 31 1 points Save

What type of correlation would you expect between the number of minutes of a cell phone call and the strength of the cellular telephone battery?

positive

negative

relative

none

Question 32 1 points Save

Find the solution for the determinant.

100

105

-105

-95

Question 33 1 points Save

The ____________measures the steepness of a line.

y-intercept

domain

slope

range

Question 34 1 points Save

Compare the quantity in Column A with the quantity in Column B.

The quantity in Column A is greater.

The quantity in Column B is greater.

The two quantities are equal.

The relationship cannot be determined on the basis of the information supplied.

Question 35 1 points Save

97 > 79

True

False

Question 36 1 points Save

What is the shape of the graph of any linear function?

line

bar

curve

oval

Question 37 1 points Save

What are the solutions for x in 2×2 + 3x – 9 = 0?

3b and -2

and -3

6 and -12

none of these

Question 38 1 points Save

Evaluate .

1

110

-110

-120

Question 39 1 points Save

Solve for x in

Question 40 1 points Save

Which of the following is a relation but not a function?

{(-10,1), (1,8), (-4, -2)}

{(-4,1), (1,1), (-2, -2)}

{(-5,1), (1,-7), (21, -2)}

none of these

Question 41 1 points Save

Find the solution for the determinant.

24

-56

56

-24

Question 42 1 points Save

Is the math statement true or false?

True

False

Question 43 1 points Save

What is the equation for the line that passes through the point (0, 9) and has a slope of -6?

y = 6x + 9

y = -6x + 1

y = -6x – 9

none of these

Question 44 1 points Save

What is the GCF of -26×5 + 4×3 + 2×2?

4×5

2x

2×3

none of these

Question 45 1 points Save

Which statement fits the data in the table?

hours worked = cars washed • .25

hours worked – 4 ÷ cars washed

hours worked = .25 ÷ cars washed

none of these

Question 46 1 points Save

The result of multiplying a 2×3 matrix and a 3×4 matrix is a 2×4 matrix.

True

False

Question 47 1 points Save

____________________ uses determinants to solve systems of equations.

elimination

substitution

graphing

Cramer’s Rule

Question 48 1 points Save

In order to _______ matrices, you must always have the same dimensions.

multiply

add

invert

none of these

Question 49 1 points Save

One poll reported that 48% of city residents were against building a new stadium. The polling service stated that the poll was accurate to within 3%. What is the minimum percent of city residents that oppose the stadium?

45%

46.5%

48%

49%

Question 50 1 points Save

Compare the quantity in Column A with the quantity in Column B.

The quantity in Column A is greater.

The quantity in Column B is greater.

The two quantities are equal.

The relationship cannot be determined on the basis of the information supplied.

Question 51 1 points Save

Write a function rule for the table shown

f(s) = 4s

f(s) = 2.05s

f(s) = 4.10s

none of these

Question 52 1 points Save

What is a solution for x in |3x – 3| = 5?

Question 53 1 points Save

Which equation models this statement: How many raisins (variable r) are left in a jar of 29 raisins after you have eaten some of them?

r = 29 + n

r = 29 – n

r = 29n

none of these

Question 54 1 points Save

Use Cramer’s Rule to solve the following system of equations.

7x + 5y = 3

3x – 2y = 22

(4, -5)

(1, -2)

(0, 4)

none of these

Question 55 1 points Save

It is not possible to multiply a 2×5 matrix and a 5×4 matrix.

True

False

Question 56 1 points Save

When using Cramer’s Rule to solve the system of equations containing

2x – y = 1

-4x + 3y = 0

the numerator for the y variable looks like which of these determinants?

none of these

Question 57 1 points Save

Compare the quantity in Column A with the quantity in Column B.

The quantity in Column A is greater.

The quantity in Column B is greater.

The two quantities are equal.

The relationship cannot be determined on the basis of the information supplied.

Question 58 1 points Save

The motion of a ball scooped by a field hockey player can be modeled by h = -16t2 + 40t, where t is the time in seconds and h is the height of the ball. Will the ball ever reach 25 feet in the air?

Yes

No

Cannot be determined by the information given.

Question 59 1 points Save

Solve by completing the square x2 – 6x – 4 = 0.

Question 60 1 points Save

When using Cramer’s Rule to solve the system of equations containing

5x – y = 5

-3x + y = -9

the denominator for the x and y variables looks like which of these determinants?

none of these

Question 61 1 points Save

If 3x – y = -3 and x + 5y = 15, what is the value of y?

0

1

2

3

Question 62 1 points Save

What kind of solutions does ax2 – bx + c = 0 have if b2 – 4ac < 0?
two real solutions
two complex solutions
one complex solution
one real solutions
Question 63 1 points Save
Factor x2 + 18x + 80 completely.
(x + 10) (x - 8)
( x - 10) (x - 8)
(x - 10)(x + 8)
none of these
Question 64 1 points Save
What is the relationship between the lines y = 2x - 7 and ?
parallel
perpendicular
neither
Question 65 1 points Save
8y = 3x + 24 is a linear equation.
True
False
Question 66 1 points Save
If a system of linear equations has one solution, the graph of the lines will be parallel.
True
False
Question 67 1 points Save
What is the equation for the line that passes through the point (5, -4) and has a slope of -1?
y = x + 5
y = -x + 1
y = -x - 4
none of these
Question 68 1 points Save
Evaluate 3x2 + 2x - 1 when x = -3.
-34
20
21
32
Question 69 1 points Save
What type of polynomial is -25x4 - 21?
monomial
binomial
trinomial
none of these
Question 70 1 points Save
Use synthetic substitution to find f(-2) for f(x) = x4 - 4x3 - 4x + 6
22
56
62
32
Question 71 1 points Save
Evaluate .
2,100
5,200
41,600
54,080
Question 72 1 points Save
Factor x2 + 6x - 27completely.
(x - 9) (x - 3)
( x + 9) (x - 3)
(x + 9)(x + 3)
none of these
Question 73 1 points Save
It is possible to multiply a 3x4 matrix and a 2x2 matrix.
True
False
Question 74 1 points Save
When using Cramer's Rule to solve the system of equations containing
3x - 6y = 9
4x + 2y = -6
the numerator for the x variable looks like which of these determinants?
none of these
Question 75 1 points Save
What is the relationship between the lines and y = 4x - 17?
parallel
perpendicular
neither
Question 76 1 points Save
Write a function rule for the table shown.
f(d) = 200 - 50d
f(d) = 50 - d
f(d) = 50d
none of these
Question 77 1 points Save
65 < 56
True
False
Question 78 1 points Save
What is the solution to the system containing these equations?
x + y = -8
-3x + 2y = 9
(-5, -3)
(0, 0)
(2, 6)
no solution
Question 79 1 points Save
Solve by completing the square x2 - 2x - 5 = 0.
Question 80 1 points Save
If y = 4x + 14, what is the value of y ÷ -4?
-x - 14
-x + 14
none of these
Question 81 1 points Save
What is the solution to the system containing these equations?
y = x + 5
x + y = 9
(-5, 0)
(2, 7)
(4, 5)
no solution
Question 82 1 points Save
It is not possible to add a 2x4 matrix and a 4x2 matrix.
True
False
Question 83 1 points Save
Simplify the polynomial [(6x - 8) - 2x] - [(12x - 7) - (4x - 5)]
12x - 7
8 - 2x
-4x - 6
4x - 8
Question 84 1 points Save
Solve by completing the square 3x2 - 8x - 6 = 0.
Question 85 1 points Save
What is the solution to the system containing these equations?
2x + 6y = 2
3x + 2y = 10
(3, 2)
(9, 0)
(-1, 7)
none of these
Question 86 1 points Save
A bookstore offers a 15% discount to its employees. Suppose an employee has a coupon worth $5 off any item and wants to buy a book that costs $45. What is the final cost of the book if the employee discount is taken first and then the coupon is subtracted?
$6.75
$25.00
$33.25
$34.00
Question 87 1 points Save
Simplify (d4)(d5)3.
d27
d19
d23
d12
Question 88 1 points Save
Solve the quadratic equation x2 + 8x + 12 = 0.
x = 6 and x = 2
x = -6 and x = 2
x = 6 and x = -2
x = -6 and x = -2
Question 89 1 points Save
The sum of three numbers is twenty. The second number is 4 times the first and the sum of the first and third is eight. What are the three numbers?
10, 2, and 8
9, 5, and 6
3, 12, and 5
none of these
Question 90 1 points Save
If x + 3y = 12 and - y = 5, what is the value of x?
-3
1
3
9
Question 91 1 points Save
What is the solution to the system containing these equations?
-7x + 6y = 42
-3x + 4y = 28
(-2, -3)
(0, 7)
(2, -6)
no solution
Question 92 1 points Save
One factor of x3 - 3x2 - 4x + 12 is x + 2. Find the remaining factors.
x + 2, x - 3
x + 2, x + 3
x - 3, x - 2
x + 3, x - 2
Question 93 1 points Save
What is the solution for the determinant?
-2
2
0
-3
Question 94 1 points Save
What type of polynomial is 5x2 - 11x + 2?
monomial
binomial
trinomial
none of these
Question 95 1 points Save
At what point do the two lines with the equations 7x - 3y = 13 and y = 2x - 3 intersect?
(-4, -11)
(4, 11)
(4, 5)
none of these
Question 96 1 points Save
What is the slope of the line between the points (15, 7) and (6, 4)?
none of these
Question 97 1 points Save
What is the solution to the system containing these equations?
-6x + 3y = 33
-4x + y = 16
(-2, -3)
(1, 0)
none of these
Question 98 1 points Save
Let f(x) = x2 - 4x + 5 and g(x) = 3x2.
Compare the quantity in Column A with the quantity in Column B.
The quantity in Column A is greater.
The quantity in Column B is greater.
The two quantities are equal.
The relationship cannot be determined on the basis of the information supplied.
Question 99 1 points Save
Which value is the sum of the solutions to x2 - 3x - 18 = 0?
-6
3
-3
none of these
Question 100 1 points Save
Solve the following system using substitution:
y = x + 2
y = 3x
(1, 3)
(0, 0)
(3, 1)
(1/3, 1)