It's A. If U=16, 6+10=16
and if you plug in the numbers for the second equation it's 36=2(10)+16
Answer: X=9
x^2 −2(x) (9)+9^2 =0
(X-9)^2=0
X-9=0
X=9
Answer:
You are correct, it is C.
3/5 + 5/7 = 1 11/35 - 1/5 = 1 4/35 which is your final answer.
Hey There!
If i got this down right,
An = A1 + (n - 1)d
Sn = A1 + A2 + A3 + ... + An
A1 is given by
Sn = n (A1 + An) / 2
For Example
An = A1 + (n - 1)d
= 6 + 3 (n - 1)
= 3 n + 3
n = 50
Hope This Helps!!!