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4 years ago

10

Toni can carry up to 18 pounds in her backpack her lunch where is 1 pound her gym clothes way to pounds in a box weighed 3 pound

s each how many bags because you carry in her backpack

1 answer:

Volgvan4 years ago

8 0

5 books. 5x3lbs= 15lb +2lb +1lb = 18lbs

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Sophie [7]

Answer:

Step-by-step explanation:

Given that:

$T(x,y) = \dfrac{100}{1+x^2+y^2}$

This implies that the level curves of a function(f) of two variables relates with the curves with equation f(x,y) = c

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$c = \dfrac{100}{1+x^2+2y^2} \ \ \--- (1)$

By cross multiply

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Now,

$\dfrac{(x)^2}{\dfrac{100}{c}-1 } + \dfrac{(y)^2}{\dfrac{50}{c}-\dfrac{1}{2} }=1$

This is the equation for the family of the eclipses centred at (0,0) is :

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Therefore; the level of the curves are all the eclipses with the major axis:

$a = \sqrt{\dfrac{100 }{c}-1}$ and a minor axis $b = \sqrt{\dfrac{50 }{c}-\dfrac{1}{2}}$ which satisfies the values for which 0< c < 100.

The sketch of the level curves can be see in the attached image below.

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