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Luden [163]
3 years ago
11

Find an approximate equation y=ab^x with the coordinates (0, 4) (3, 95)

Mathematics
1 answer:
bogdanovich [222]3 years ago
7 0
We have y=ab^{x}

Plug in (0, 4):
4=ab^{0}⇒4=a
So we now have a

Plug in (3, 95):
95=4b^{3}
⇒b^{3}=\frac{95}{4}
⇒b=\sqrt[3]{\frac{95}{4}}
which is approximately 2.874

So we get
y=4(\sqrt[3]{\frac{95}{4}})^{x}
or, in decimal form,
y=4*2.874^{x}
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3 tables = 4.5 m

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Just on entering by the right the length = 20/21×30 m

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