2 years ago

Calculate the slope of the line that contains the points (5,-2) and (-3,-7).

Mathematics

1 answer:

photoshop1234 [79]2 years ago

4 0

Answer:

slope = 5/8

Step-by-step explanation:

y2 - y1 / x2 - x1

-7 - (-2) / -3 - 5

-5 / -8

= 5/8

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What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?

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$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
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S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
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