3 years ago

Help please, I really need to get this test passed

Mathematics

1 answer:

ad-work [718]3 years ago

3 0

Answer:

the secound ansewr

Step-by-step explanation:ik

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A line contains the points (4,2) and (0,-1). What is the equation of the line?

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Find the sum of this infinite geometric series where a1=0.3 and r=0.1

ratelena [41]

Answer:

1/3

Step-by-step explanation:

The formula for computing the sum of an infinite geometric series is

$S=\frac{a_1}{1-r}$ where r is between -1 and 1 and $r$ is the common ratio, and $a_1$ is the first term of the series.

So let's plug in:

$S=\frac{0.3}{1-0.1}$

$S=\frac{0.3}{0.9}$

$S=\frac{3}{9}$ I multiplied bottom and top by 10.

$S=\frac{1}{3}$ I divided top and bottom by 3.

The sum is 1/3.

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