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EXPONENTS AND POWER CLASS 7

Authored by Amit Tripathi

Mathematics

7th Grade

Used 21+ times

EXPONENTS AND POWER CLASS 7
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45 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 1000+200+50100^0+20^0+5^0  

 is equal to

125

25

1/125

3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If  (3)m+1 × (3)5=(3)7(–3)^{m+1}\ ×\ (–3)^5=(–3)^7  , then the value of m is:

5

7

1

3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The multiplicative inverse of  727^{-2}   is:

 727^2  

7

1/ 727^2  

1/7

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (25)3 ×(25)6 =(25)2p1\left(\frac{2}{5}\right)^3\ \times\left(\frac{2}{5}\right)^{-6}\ =\left(\frac{2}{5}\right)^{2p-1^{ }}  

Find the value of p

-1

1

-2

2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 [(1/2)1+(2/3)2(3/4)0]2[(1/2)^{-1}+(2/3)^2-(3/4)^0]^{-2}  

 is equal to:

81/484

81/169

169/81

16/81

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 If (xy) = (32)2 ÷ (37)0If\ \left(\frac{x}{y}\right)\ =\ \left(\frac{3}{2}\right)^2\ \div\ \left(\frac{3}{7}\right)^0  

 Find the value of (xy)3Find\ the\ value\ of\ \left(\frac{x}{y}\right)^{-3}  

4/9

64/729

729/64

9/4

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 Simplify:Simplify:   (2)3 × (2)73 × 46\frac{\left(-2\right)^3\ \times\ \left(-2\right)^7}{3\ \times\ 4^6}  

6

1/6

12

1/12

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