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3 years ago

Units. Find the other

Mathematics

1 answer:

Tcecarenko [31]3 years ago

6 0

Answer:

L = 12

Step-by-step explanation:

I didn't really know how to do it I just looked it up lol

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Write an equation of the line in slope-intercept form.<br><br> f(3)=-2, f(0)=1

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Step-by-step explanation:

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3 years ago

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A 200-liter tank initially full of water develops a leak at the bottom. Given that 20% of the water leaks out in the first 5 min

Leya [2.2K]

Answer:

127.53 liters left after 10 minutes

Step-by-step explanation:

Let

$A \to Amount$

$t \to time$

Given

$A(0) = 200$ --- initial

$A(5) = 200 * (1 - 20\%) = 160$ --- the amount left, after 5 minutes

Required

$A(10)$ --- amount left after 5 minutes

To do this, we make use of:

$A(t) = A(0) * e^{kt}$

$A(5) = 160$ implies that:

$160 = 200 * e^{k*5}$

Divide both sides by 200

$0.80 = e^{k*5}$

Take natural logarithm of both sides

$\ln(0.80) = \ln(e^{k*5})$

$\ln(0.80) = \ln(e^{5k})$

$\ln(0.80) = 5k\ln(e)$

So, we have:

$-0.223 = 5k$

Divide by 5

$k = -0.045$

So, the function is:

$A(t) = A(0) * e^{kt}$

$A(t) = 200 * e^{-0.045t}$

The amount after 10 minutes is:

$A(10) = 200 * e^{-0.045*10}$

$A(10) = 200 * e^{-0.45}$

$A(10) = 127.53$

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3 years ago

An E. coli bacterium has a diameter of about 5×10^-7 meter. Write this measurement as a decimal in standard notation. Explain .

Archy [21]

5<span>×</span>10^-7 = 0.0000005
When 10 is to a negative power, you move the decimal to the left because the number is less than positive 1. Here 10 is to the power of -7, so you move the decimal (which is after/behind 5) to the left 7 times.

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lesya [120]

there are 62000 millilitres in 62 liters

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Please help me giving brainliest

Gemiola [76]

Answer:

42cm^2

3x2=6x7=42

Step-by-step explanation:

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