3 years ago

Collect like terms —7x2 – 2xcº

Mathematics

1 answer:

dsp733 years ago

4 0

-7x^2-2x^2 = -9x^2 yea yea yea

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Washington is 44 miles south of Lawrence. and midland is 63 miles east of Lawrence. how far apart are Washington and midland?

gregori [183]

The answer is 21 miles

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3 years ago

What is the equation of a hyperbola with a = 5 and c = 15? Assume that the transverse axis is horizontal.

gogolik [260]

Answer:

$\frac{x^2}{25} -\frac{y^2}{200} =1$

Step-by-step explanation:

Recall that the equation of hyperbola centered at the origin with transverse horizontal axis has the general form:

$\frac{x^2}{a^2} -\frac{y^2}{b^2} =1\\and\,\,\,\, with\\c=\sqrt{a^2+b^2}$

since we know that a = 5 ,and c = 15,we can solve for b:

$15=\sqrt{5^2+b^2} \\15^2=25+b^2\\b^2=200\\$

then the equation of the hyperbola becomes:

$\frac{x^2}{5^2} -\frac{y^2}{200} =1\\\frac{x^2}{25} -\frac{y^2}{200} =1$

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3 years ago

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Evgesh-ka [11]

Answer:

1/8

Step-by-step explanation:

Llyod used 1/4 chocolates to make 2/3 gallons of chocolate pudding

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Therefore the number of pounds needed to make 1/3 of the recipe can be calculated as follows.

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3 years ago

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Step-by-step explanation:

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3 years ago

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