Math questions

Question 1 of 20

5.0 Points

Solve the following linear inequality:

-3

=

2x + 5

3

<

6

A. [-7, 13/2)

B. [-12, 7/2)

C. [-3, 8/3)

D. [3, 6/5)

Question 2 of 20

5.0 Points

The graph of an equation in two variables is:

A. one method for graphing such equations.

B. a solution of an equation in two variables.

C. the set of all points whose coordinates satisfy the equation.

D. are ordered pairs of real numbers which denote distance and direction along the x axis.

Question 3 of 20

5.0 Points

Solve the following quadratic equation:

(3x – 1)2 = 75

A.

{1-5v3}

3

,

{1+5v3}

3

B.

{1-6v3}

2

,

{1+6v3}

2

C.

{1-4v7}

4

,

{1+2v3}

4

D.

{1-3v2}

3

,

{1+3v2}

3

Question 4 of 20

5.0 Points

Solve. Write the solution in interval notation.

|x + 4| = 6

A. (–8, –10) ? (2, 8)

B. (–8, –10] ? [2, 8)

C. (–10, 2)

D. [–10, 2]

Question 5 of 20

5.0 Points

Solve the following quadratic equation:

6×2 + 3x – 30 = 0

A. {1/2,2}

B. {1/2,7/5}

C. {3,-5/2}

D. {-1/3,5}

Question 6 of 20

5.0 Points

Solve:

9x + 8 = 2x + 8

A. –1

B. 0

C. 1

D. 2

Question 7 of 20

5.0 Points

Solve the system of linear inequalities by graphing.

3x + 4y = 12

x + 3y = 6

x = 0

y = 0

A is the top one , B is the next.. A is next to B

A.

B.

C.

D.

Question 8 of 20

5.0 Points

Solve the following linear equation:

7(x – 2) = 4(x + 1) – 21

A. x = 0

B. x = -1

C. x = -3

D. x = 3

Question 9 of 20

5.0 Points

Solve the system of linear inequalities by graphing.

x + 2y = 3

2x – 3y = 6

A.

B.

C.

D.

Question 10 of 20

5.0 Points

Which statement is FALSE?

A. d ? {a, b, c}

B. Ø ? {a, b, c}

C. Ø ? {a, b, c}

D. a ? {a, b, c}

Question 11 of 20

5.0 Points

Solve the following linear inequality:

x/6 + 1/8 = x/2 – 3/4

A. [21/8, 8)

B. [12/3, -8)

C. [4,-8)

D. (-8, 8)

Question 12 of 20

5.0 Points

Solve:

5

y + 4

+

11

y2 + y – 12

=

7

y – 3

A. 16

B. -16

C. 2

D. -2

Question 13 of 20

5.0 Points

Solve the following formula for the speciï¬ed variable:

V = 1/3 lwh for h

A. h = 3V/lw

B. h = 5V/lw

C. h = 2V/ w

D. h = 7V/lw

Question 14 of 20

5.0 Points

Choose the graph of the interval (–3, 8) on a real number line.

A.

B.

C.

D.

Question 15 of 20

5.0 Points

The x coordinate of a y coordinate point where a graph crosses the y axis is:

A. This answer cannot be determined.

B. -1.

C. X2.

D. 0.

Question 16 of 20

5.0 Points

Solve the following linear equation:

-10 – 3(2x + 1) – 8x – 1 = 0

A. x = -2

B. x = 4

C. x = -1

D. x = -2

Question 17 of 20

5.0 Points

Solve the following equation that has two radicals:

vx+4 + vx-1 = 5

A. {4}

B. {6}

C. {2}

D. {3}

Question 18 of 20

5.0 Points

Solve the system of linear inequalities by graphing.

3x + 4y = 12

x = 3

A.

B.

C.

D.

Question 19 of 20

5.0 Points

The y coordinate of a point where a graph crosses the y axis is called a/an:

A. 1st quadrant.

B. X axis.

C. Y intercept.

D. X intercept.

Question 20 of 20

5.0 Points

In the rectangular coordinate system, the point of intersection of the horizontal axis and vertical axis is called which of the following?

A. Point plotting

B. Quadrants

C. Viewing window

D. Origin