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aisis21
10.12.2020 •
Mathematics
What is the explicit formula for the sequence: 18, 11, 4, -3?
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Ответ:
Step-by-step explanation:
c.d. d=11-18=4-11=-7
y=18+(n-1)(-7)
or y=18-7n+7
or y=25-7n
n=1,2,3, ...
Ответ:
-1.4 or -7/5
Step-by-step explanation:
Slope=y2-y1/x2-x1
Your two points are:
(-3,2) and (2,-5)
1) Plug in the values into the slope formula:
(-5-2)/(2--3)
2) Simplify:
-7/5
3) Write as decimal: - Optional
-1.4