Answer:
Exact form: √
29
Decimal form: 5.38516480
Step-by-step explanation:
Answer:

Or

Step-by-step explanation:
We want to find the angle which forms a y-coordinate of 
on the unit circle.
The y-coordinate on the unit circle is given by
.
This implies that 



Or

-It should be cultural diffusion .
C.
You can simplify 12:21 to 4:7 by dividing 12 by 3 to get 4 and by dividing 21 by 3 to get 7. Because dividing both those numbers in the one ratio by 3 gives you the other ratio, they are a proportion.
Answer:(5-1)(7-1)
Step-by-step explanation: