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3 years ago

Pls help my stupid risen brain

Mathematics

2 answers:

STatiana [176]3 years ago

6 0

Answer:

I'll help. First of all, you aren't stupid, second of all believe in yourself and you can do anything.

P.S

Sorry if I sound like a school counselor.

lol :)

Alisiya [41]3 years ago

3 0

Unfortunately I can not help you

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What are the length(s) of the sides labeled a and b in the triangle below?

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4. A horizontal ellipse, centered at the origin has a major axis of 10 units and minor axis of 8 units. Write the

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Answer:

$\frac{x^2}{25} +\frac{y^2}{16} =1$

Step-by-step explanation:

For ellipses, the length of the major axis is represents as:

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where $a$ is called the semi-major axis.

In this case since the major axis is equal to 10 units:

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solving for the semi-major axis $a$ :

$a=10/2\\a=5$

and also the minor axis of an ellipse is represented as:

Minor axis = $2b$

where $b$ is called the semi-minor axis.

Since the minor axis has a length of 8 units:

$8=2b$

solving for b:

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$\frac{x^2}{a^2} +\frac{y^2}{b^2} =1$

and substituting the values for $a$ and $b$ :

$\frac{x^2}{5^2} +\frac{y^2}{4^2} =1$

and finall we simplify the expression to get the equation of the ellipse:

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2 years ago

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