## anonymous one year ago I'll fan and medal to whoever explains! What is the value of the expression 3^–4? A) -81 b) -12 c) -1/81 d) 1/81

1. anonymous

2. anonymous

it's D

3. anonymous

4. anonymous

Well , it's difficult to explain . Just use calculator . It will be easier

D

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7. anonymous

Thanks for the help guys! I have 4 more, would you mind helping me with them?

8. anonymous

It won't take long, I promise!

9. anonymous

sure . :)

10. anonymous

What is the value of the expression 1/5^-5 A) 1/3125 B) 1/25 C) 25 D) 3125

11. anonymous

|dw:1442949494909:dw| So , it's B .

12. anonymous

What is the value of the expression 3/3^-2 ? A) 27 B) 18 C) 1/2 D) 1/3

13. anonymous

now , I think you should solve it by yourself . and post your answer . I will check that . The all questions are same .

14. anonymous

Is it D?

15. anonymous

yes ! it's D . you r correct . :)

16. anonymous

What value of w solves the equation? W^-3 = 1/64 W=?

17. anonymous

|dw:1442950089806:dw|

18. anonymous

Okay, last one What value of c solves the equation? 4^c =1/16

19. anonymous

@SyedMohammed98 @imqwerty I am getting little difficulties to solve it .

20. imqwerty

$a^\left( -b \right)=\frac{ 1 }{ a^b }$

21. imqwerty

try solving it now :)

22. imqwerty

$3^\left( -4 \right)=\frac{ 1 }{ 3^4 }=\frac{ 1 }{ 81}$

23. anonymous

@Learner11 I got my score back, and they were all wrong except for the first one