Answer:
Step-by-step explanation:
X^2 + 7x + 7x + 49 = x*(x+7) + 7*(x+7) = (x+7)(x+7) = (x+7)^2
Answer:
y=2/3x-4
Step-by-step explanation:
(Refer to image)
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Answer:
5632
Step-by-step explanation:
its not that hard just use ur brain
1,600/1,000 = $1.60
An equation:
1,000c = 1600
First term: -9
Common difference: 7
a(n) = -9 + 7(n-1), for n = {1, 2, 3, ... }
Check: what is the first term? let n=1. Then a(1) = -9 + 7(1-1) = -9.
This is correct.