anonymous
  • anonymous
(Fan and medal, going to attach a picture) Which value is equivalent to..
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
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anonymous
  • anonymous
a. 10 over 9 b. 20 over 3 c. 100 over 9 d. 700 over 3
anonymous
  • anonymous
Ok. So first you simplify whats inside the brackets

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anonymous
  • anonymous
So, 70 over 21 for the first one?
anonymous
  • anonymous
Yes! And the second one..
anonymous
  • anonymous
When you have anything to the power of zero the answer is 1
anonymous
  • anonymous
(just in case you didnt know)
anonymous
  • anonymous
Yeah, I know that the top becomes 1 but I'm not sure what to do with the negative exponent.
anonymous
  • anonymous
are you allowed to use a calculator? Because then its easy
anonymous
  • anonymous
Nvm found it out, 0.125.
anonymous
  • anonymous
Ok, perfect! So now all the brackets are gone you can start applying the exponents that were outside
anonymous
  • anonymous
Right now we are still keeping the terms seperated
anonymous
  • anonymous
So what would the next step be? Do I do 70^2?
anonymous
  • anonymous
no you multiply the whole fraction by itself for 70/21
anonymous
  • anonymous
since its to the power of 2
anonymous
  • anonymous
So 70/21 times 70/21
anonymous
  • anonymous
Oh okay. I got 11.1111.. when putting it in a calculator
anonymous
  • anonymous
right. this is the same as the fraction 11 1/9 by the way.
anonymous
  • anonymous
So now you do the same with the next one
anonymous
  • anonymous
Only of course, to the power of 3 this time
anonymous
  • anonymous
512
anonymous
  • anonymous
yes!
anonymous
  • anonymous
Then the last ones fairly simple. just simplify
anonymous
  • anonymous
Yeah, 0.001953125
anonymous
  • anonymous
At this stage you should have this: \[11 \frac{ 1 }{ 9 } \times 512 \times \frac{ 1 }{ 512}\] 1/512 is the same as what you got, just put into a fraction to make it easier to write out
anonymous
  • anonymous
so now you just multiply. Again a calculator makes this quick if you are allowed one
anonymous
  • anonymous
I got 11 over 9
anonymous
  • anonymous
11 over 9?
anonymous
  • anonymous
when I do it I get 11 and 1 over 9
anonymous
  • anonymous
Can you explain what you did to get your answer?
anonymous
  • anonymous
I just put 11 and 1 over 9 * 512 * 1 over 512 into the calculator and that's what it gave me
anonymous
  • anonymous
try making 11 and 1 over 9 into an improper fraction
anonymous
  • anonymous
this time it just came out as 100 over 9
anonymous
  • anonymous
Right! Isn't that one of the answers?
anonymous
  • anonymous
Oh yeah! Thank you
anonymous
  • anonymous
You are welcome!

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