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Mathematics

9th - 10th Grade

CCSS covered

3NA Negative & Fractional Indices
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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is incorrect?

a2×a6=a12a^2\times a^6=a^{12}

a8÷a3=a5a^8\div a^3=a^5

a6×a3=a9a^6\times a^3=a^9

(2a)2=(4a2)\left(\frac{2}{a}\right)^2=\left(\frac{4}{a^2}\right)

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is equivalent to the expression  12x7\frac{1}{2x^7}  ?

 (2x)−7\left(2x\right)^{-7}  

 12x7\frac{1}{2}x^7  

 12x−7\frac{1}{2}x^{-7}  

 2x−72x^{-7}  

Tags

CCSS.8.EE.A.1

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Simplify (42)3

642

49

45

46

Tags

CCSS.8.EE.A.1

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

 (718)−1\left(\frac{7}{18}\right)^{-1}  is equal to ...

 −718-\frac{7}{18}  

 −187-\frac{18}{7}  

 187\frac{18}{7}  

 718\frac{7}{18}  

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 −92-9^2  = _____

81

 −81-81  

 181\frac{1}{81}  

 −181-\frac{1}{81}  

 −18-18  

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 −9−2-9^{-2}  = ___

 8181  

 −81-81  

 181\frac{1}{81}  

 −181-\frac{1}{81}  

 −18-18  

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

 9−129^{-\frac{1}{2}}  = _______

 −3-3  

 −4.5-4.5  

 19\frac{1}{9}  

 13\frac{1}{3}  

 −13-\frac{1}{3}  

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