S = n(a1 + an)/2
2S = n(a1 + an)
2S = na1 + nan
nan = 2S - na1
an = (2S - n a1)/n
1. Distribute
5(2n-4)
10n-20
9(n+2)
9n+18
10n-20=9n+18
2. Combine like terms
combine the terms with “n”, and then combine the other numbers.
Hope this helps!
Answer: Only Statement 1 is True.
Step-by-step explanation:
A box is essentially a rectangular prism, which has 8 corners. Tubes, pipes, and cans are cylinders because the corss-section of them are circular and the connection between the bases are parallel.
