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What is the result of isolating [tex]y^2[/tex] in the equation below?

[tex]4x^2 + 25y^2 = 100[/tex]

A. [tex]y^2 = 4 - \frac{4}{25}x^2[/tex]
B. [tex]y^2 = 100 - \frac{4}{25}x^2[/tex]
C. [tex]y^2 = 25 - \frac{4}{25}x^2[/tex]
D. [tex]y^2 = 100 - 4x^2[/tex]

Answer :

Let's solve the problem step by step to isolate [tex]\( y^2 \)[/tex] in the given equation.

The original equation is:
[tex]\[ 4x^2 + 25y^2 = 100 \][/tex]

Step 1: Move the [tex]\( 4x^2 \)[/tex] term to the right side of the equation.

We do this by subtracting [tex]\( 4x^2 \)[/tex] from both sides:
[tex]\[ 25y^2 = 100 - 4x^2 \][/tex]

Step 2: Solve for [tex]\( y^2 \)[/tex] by dividing everything by 25.

To isolate [tex]\( y^2 \)[/tex], divide each term of the equation by 25:
[tex]\[ y^2 = \frac{100}{25} - \frac{4x^2}{25} \][/tex]

Simplify the fractions:
[tex]\[ y^2 = 4 - \frac{4}{25}x^2 \][/tex]

The correct answer is:
A. [tex]\( y^2 = 4 - \frac{4}{25}x^2 \)[/tex]

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