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Flura [38]
3 years ago
14

Can someone please explain how to do this to me?

Mathematics
1 answer:
Bess [88]3 years ago
7 0
\bf 7\times 1+6\times \cfrac{1}{100}\implies \impliedby recall~\mathbb{PEMDAS}
\\\\\\
7+\cfrac{6}{100}\implies 7+0.06\implies \boxed{7.06}
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An inverted pyramid is being filled with water at a constant rate of 25 cubic centimeters per second. The pyramid, at the top, h
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Answer:

\frac{225}{16} cm/s

Step-by-step explanation:

We are given that

\frac{dV}{dt}=25cm^3/s

Side of base=4 cm

l=w=4 cm

Height,h=12 cm

We have to find the rate at which the water level rising when the water level is 4 cm.

Volume of pyramid=\frac{1}{3}lwh=\frac{1}{3}l^2h

\frac{l}{h}=\frac{4}{12}=\frac{1}{3}

l=\frac{1}{3}h

Substitute the value

V=\frac{1}{27}h^3

Differentiate w.r.t t

\frac{dV}{dt}=\frac{3}{27}h^2\frac{dh}{dt}

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25=\frac{1}{9}(4^2)\frac{dh}{dt}

\frac{dh}{dt}=\frac{25\times 9}{16}=\frac{225}{16} cm/s

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3 years ago
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Answer:

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Luba_88 [7]

Answer: you need to show the rest because i dont know. four times what?

Step-by-step explanation:

...

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GaryK [48]

Answer:

C. 6.25

Step-by-step explanation:

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