2 years ago

Solve the formula d = rt for r. A. r = d - t B. r = t/d C. r = d/t D. r = dt

Mathematics

1 answer:

PIT_PIT [208]2 years ago

8 0

The answer is C. r=d/t

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Step-by-step explanation:

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3 years ago

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agasfer [191]

Answer:

The value of x any y are "-5.29 and 0.79" and "3.79 and -2.29"

Step-by-step explanation:

Given values:

$2xy =6.....(a)\\\\x-y= 3.....(b)\\\\$

After solve equation (a) we get

$\ equation: \\\\2xy= 6\\\\xy =\frac{6}{2} \\\\xy = 3.....(x)\\\\$

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put the value of x in to equation (x)

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$y^2+3y-3=0\\\\\ compare \ the \ value \ with \ ay^2+by+c=0\\a= 1\\b=3\\c=-3\\\ Formula: \\y= \frac{-b\pm\sqrt{b^2-4ac}}{2a}\\y= \frac{-3\pm \sqrt{9+12}}{2}\\y= \frac{-3\pm \sqrt{21}}{2}\\$

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2 years ago