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Lady_Fox [76]
3 years ago
9

Simplify -4+8-2 and 8-(-3)-5

Mathematics
1 answer:
bagirrra123 [75]3 years ago
3 0

Answer:

-2 and 6

Step-by-step explanation:

- 4 + 8 - 2

- 6 + 8

= - 2

○●○●○●○●○●○●○●○●○●○●○●○●○●○

8 - ( - 3) - 5

8 + 3 - 5

= 6

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Answer: E=1

Step-by-step explanation:

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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:

10=2a

solving for the semi-major axis a :

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

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where b  is called the semi-minor axis.

Since the minor axis has a length of 8 units:

8=2b

solving for b:

b=8/2\\b=4

Now we can use the equation for an ellipse centered at the origin (0,0):

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

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

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

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Hope this helps! :)

~Zane


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