06-01-2020
Mathematics

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Rearrange to make x the subject

Rearrange to make x the subject class=

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josshyaby josshyaby

06-01-2020

Answer:

Step-by-step explanation:

(10 - x^2)/b = b/2

Cross multiply

2(10 - x^2) = b^2

20 - 2x^2 = b^2

2x^2 = 20 - b^2

Dividing through by 2

x^2 = (20 - b^2)/2

√x^2 = √(20 - b^2)/2

x = √(20 - b^2)/2

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