## babygirl809 one year ago What is the value of the expression 1/3-5 ? A. 243 B. 15 C. 1/15 D. 1/243

1. babygirl809

@imqwerty

2. MrNood

you need to calrify the equation a bit use brackets or use ^ to represent "power of"

3. anonymous

what do you think

4. babygirl809

b

5. MrNood

why?

6. babygirl809

idk im guessing

7. anonymous

well its not b

8. babygirl809

c

9. MrNood

this is maths - guessing doesn't work don't 'TRY again' - work it out can you write 3^-5 in another way

10. babygirl809

a

11. MrNood

$3^{-a} =\frac{ 1 }{ 3^{a} }$ so can oyu write that using 5 for a

12. MrNood

@mathman101 please read you own posts and see if they are contributing anything....

13. triciaal

to get the symbol for exponent shift the number 6 key

14. triciaal

|dw:1444324113224:dw|

15. triciaal

|dw:1444324369652:dw|

16. anonymous

do you now understand it or do you still need help

17. babygirl809

i still need a little hepl