Convert the following equation to slope-intercept form: 12x + 12y = 36
2 answers:
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bearing in mind that the average rate of change = slope, and for that we can simply use two points off the table.
Answer:
S₉ = 255.5
Step-by-step explanation:
the sum to n terms of a geometric sequence is
=
where a₁ is the first term and r the common ratio
here a₁ = 0.5 and r = =
= 2 , then
S₉ =
=
= 0.5(511)
= 255.5