Forums › ACCA Forums › ACCA PM Performance Management Forums › Actual learning curve on scientific calculator
- This topic has 5 replies, 2 voices, and was last updated 3 years ago by John Moffat.
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- May 11, 2021 at 10:43 pm #620342
Good evening,
Does any one know how to do the actual learning curve on the calculator??
For example:9000/16×1,500=r4
Is supposed to be r=0.78 or 78%I am not getting this figure..
May 12, 2021 at 8:02 am #620369It is not equal to r4, it is equal to r^4 (r to the power 4).
r is therefore the fourth root so either use the n’th root button on your calculator, or take the square root twice.
May 12, 2021 at 3:53 pm #620407Apologies but I’m still not getting that…
9000/16×1,500=0.375
I am putting 4 ?0.375 = 0.75 not 0.78
Even when I use the square root twice I’m not getting this figure..May 12, 2021 at 4:14 pm #620411The answer is certainly 0.78.
A problem is that different calculators need calculations in putting in a different order.
On my calculator, you enter as follows:
“4” “2nd” “x^y” “0.375” “=” (obviously ignoring the ” ,s)
Alternatively, to take the square root twice:
“sq root button” “(” “sq root button” “0.375” “)” “=”
If those do not work on your calculator then you need to look in the manual for it. If you have lost the manual then type the model number into Google and you will find it 🙂
May 12, 2021 at 5:46 pm #620423Thank you so much for your help sir!
I’ve figured it out now… ??
May 13, 2021 at 8:55 am #620476You are welcome 🙂
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