3 years ago

Quiz: Writing an Equation given Attributes (focus, directrix, vertex, or p-value)

Mathematics

1 answer:

mash [69]3 years ago

5 0

E plus c equal G then smoke that zara

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Fifteen times the square of a non-zero number is equal to 20 times number.What is the number? Its not 4/3

e-lub [12.9K]

The number is (2√3) / 3

To find the missing number, convert what it says in words to an equation:
$15 {x}^{2} = 20x$
Divide both sides by 15:
${x}^{2} = \frac{20}{15} \\ \\ {x}^{2} = \frac{4}{3}$
Take the square root:
$x = \sqrt{ \frac{4}{3} } \\ \\ x = \frac{2}{ \sqrt{3} } \\ \\ x = \frac{2 \sqrt{3} }{3}$

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3 years ago

Find an equation for the line below

spayn [35]

The equation of the line is: y=2/-5x + 3 3/5