Set up a pair of proportional ratios...
a/(2πr)=α/360
a=(πrα)/180, we are given that r=12 and α=36° so
a=432π/180 in
a=12π/5 in
a=2.4π in
a≈7.54 in (to nearest one-hundredth of an inch)
Answer:
There are six terms in the series
Step-by-step explanation:
We can see that n starts from 0, and ends at 5. There are therefore 6 terms in this series - as 0 is included. Therefore there will be 6 terms in this series, not 5.
There are six terms in the given series.
Yay you are right for both Question
Answer:
For each choice of the first two digits you have 10 choices for the third digit. Thus you have 10x10x10 = 1000 choices for the first three digits. Finally you have 10 choices for the fourth digit and thus there are 10x10x10x10 = 10 000 possible 4 digit combinations from 0-9.
I hope that helps! :)