This should help you here are the steps of your problem :)
2*(1/2)*r+2*r+1 = 9*(1/10) // - 9*(1/10)
2*(1/2)*r+2*r-(9*(1/10))+1 = 0
2*(1/2)*r+2*r-9/10+1 = 0
3*r+1/10 = 0 // - 1/10
3*r = -1/10 // : 3
r = -1/10/3
r = -1/30
r = -1/30
So your answer would be 1/30
1.79(4.05 + 2.78) is the answer i had this question and this is the right answer I hope it helps
Answer:
1080 in^2
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
If you think about it, 
is 17×17
Hope this helps!
56 is a decimal part of 70. 56 = 4/5 = .8
