<u>Answer:</u>
2x²+6x-9=0
<u>Step-by-step explanation:</u>
2x(3+x)=9
6x+2x²=9
2x²+6x-9=0
26, 37. Add by odds like 1,3,5,7,9,11
Answer: 27
Step-by-step explanation:
use the formula for the area of circle and solve for r: A=pi r^2
2290.221=pir^2 <---divide by pi
729=r^2 <--- square root both sides
27=r
Look at the graphic I posted.Then go to this link:
Source:
https://astronomy.stackexchange.com/questions/19322/stellar-parallax