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3 years ago

6

consider the point (x,y) lying on the graph of y=(x+3)^1/2. let L be the distance between the points (x,y) and (4,0). write l as

a function of y

1 answer:

olga_2 [115]3 years ago

6 0

$L=\sqrt{ (x-4)^2 + y^2 }$
and
$y=\sqrt{x+3} \Rightarrow x = y^2-3$

$L=\sqrt{ (x-4)^2 + y^2 }=\sqrt{ (y^2 - 3-4)^2 + y^2 }=\sqrt{ (y^2-7)^2 + y^2 }$

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3 years ago

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Answer:

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Question : 1

weight of microbe in a test tube is 0.001 g,

weight of 456 such test tubes :

$456 \times 0.001$

$456 \times \dfrac{1}{1000}$

$\dfrac{456}{1000}$

$0.456$

weight of microbes in 456 such test tubes is :

456 g

Question : 2

One crate weights 32.5 kg

the, 100 crates weight :

$32.5 \times 100$

$3250 \: kg$

Question : 3

3. Push ups in one day - 53

push ups in 10 days :

$53 \times 10$

$530 \: \: push \: \: ups$

Question : 4

1 metal ball weights 5727 kg,

so, 100 metal balls weight :

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$572700 \: \: kg$

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2 years ago