If y is 21 and x is 6 what is the direct variation equation

Mathematics

1 answer:

balu736 [363]3 years ago

7 0

Answer:

6/24

Step-by-step explanation:

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Step-by-step explanation:

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Given y= 2x squared - 10x find all the real values of x for which y = -3

Thepotemich [5.8K]

$y=2 x^{2} -10x \\ -3=2 x^{2} -10x \\ 2 x^{2} -10x+3=0 \\ x=\frac{-b \pm \sqrt{ b^{2} -4ac} }{2a}, \ where \ a=2, \ b=-10, \ c=3$
Therefore,
$x=\frac{-(-10) \pm \sqrt{ (-10)^{2} -(4 \times 2 \times 3)} }{2 
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3 years ago

The length of a field is three times its width. If the perimeter is 64 m, what is the width of the field? A. 8 m B. 16 m

Masja [62]

A 8

If width is x, then length is 3x
x+x+3x+3x = 8x= 64, then x=8 m

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If zero bus stops is an option, then it would be whole numbers. If the number of stops is greater than zero, it would be natural numbers.

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