3 years ago

Can a right triangle have a leg that is 10 meters long and a hypotenuse that is 10 meters long? Explain.

1 answer:

Sloan [31]3 years ago

3 0

No. Both legs can be 10, but the hypotenuse has to equal $\sqrt{a^2+b^2}$

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It is equal to 21/2 which is a rational number

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sammy [17]

The sum of the first five terms is 11/2

<h3>How to determine the sum?</h3>

The series is given as:

1/2, -1,2,-4…

Calculate the common ratio of the series using

r = -4/2

Evaluate

r = -2

The sum is then calculated as:

$S_n = a\frac{1 - r^n}{1 - r}$

This gives

$S_n = \frac{1}{2} * \frac{(1 - (-2)^5}{1 + 2}$

Evaluate

$S_n = \frac{1}{2} * \frac{33)}{3}$

Evaluate

$S_n =\frac{11}{2}$

Hence, the sum of the first five terms is 11/2