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leva [86]
3 years ago
11

I really don't understand this please help me numbers : 49, 51, 53, 57.

Mathematics
1 answer:
yarga [219]3 years ago
3 0
The direction of x-axis is left to right

and the direction of y-axis is up and down.

on number 53. you have to divide it

so...18/3 = 6

so your answer on number 53. y=6

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Answer:

Step-by-step explanation:

Answer:

Data

Equation               25x² + 64y² = 1600

Process

1.- Divide all the equation by 1600

                            25x²/1600 + 64y²/ 1600 = 1600/1600

-Simplify

                             x²/64 + y²/ 25 = 1

2.- Equation of a horizontal ellipse

                            

3.- Find a, b and c

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-Solve for c

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-Substitution

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-Simplification

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                 c² = 39

-Result

                 c = √13

4.- Find the center

         C = (0, 0)

5.- Find the vertices

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6.- Find the foci

         F1 = (-√13, 0)   F2 = (√13, 0)

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