Math Test Set 11 - My Career Tools

Uncategorized

1. Jane has a collection of marbles, consisting of 3 red, 4 green, 4 blue, and 3 orange marbles. She has offered two of her friends, David and Malcolm, that they may take one marble each. What is the probability that Malcolm chooses a red marble, given that David has already chosen a red marble?

A.\(\frac{1}{7}\)

B.\(\frac{2}{13}\)

C.\(\frac{3}{14}\)

D.\(\frac{1}{4}\)

Question 1 of 10

2. Factor the expression. \(9x^{2} + 24x + 16\)

A.\((x + 4)(9x − 1)\)

B.\((3x + 16)(3x + 1)\)

C.\((3x + 4)^{2}\)

D.\((3x + 8)^{2}\)

Question 2 of 10

3. \(\frac{x^{2}+3}{x(x+5)}\)

Find the values that make this rational expression undefined.

A.x = 0 or −5

B.x = 0 or 7

C.x = 0 or 5

D.x = 2 or 4

Question 3 of 10

Math-Word problems

4. Eight more than two times an unknown number is 0. Find the unknown number.

A.-4

B.4

C.-2

D.2

Question 4 of 10

Math-Evaluate expression

5. Simplify the given expression.

−52 − 8(−8)

A.12

B.13

C.46

D.-12

Question 5 of 10

6. \(-2x^{2} + 2y^{2}\) at \(x = 1\) and \(y = -2\)

A.6

B.-6

C.8

D.-3

Question 6 of 10

Math-Inequalities

7. Solve the given inequality.

−10x − 4 ≤ 18

A.\(-\frac{11}{5}\)

B.\(-\frac{5}{11}\)

C.\(1\frac{5}{6}\)

D.\(-1\frac{5}{6}\)

Question 7 of 10

Math-Solution of equations

8. Use the substitution method to solve each of the following systems.

x + 6y = −49
−3x + 4y = −7

A.(-7,-7)

B.-(7,-7)

C.49

D.(7,-7)

Question 8 of 10

Math-Percent to decimal

9. Convert the given decimal to a percent.

0.85

A.85%

B.8.5%

C.0.85%

D.0.085%

Question 9 of 10

Math- Equations

10. Solve the given equation for x.

7x + 15 = −55

A.-10

B.11

C.-12

D.10

Question 10 of 10