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schepotkina [342]
4 years ago
13

I only have a couple minutes pls help meee!!

Mathematics
1 answer:
Arlecino [84]4 years ago
4 0

Answer:

-108

Step-by-step explanation:

4xy^3

Let x =-1 and y = 3

4*(-1) * 3^3

PEMDAS says exponents first

4 *(-1) * 27

Then multiply

-108

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The gas law for an ideal gas at absolute temperature T (in kelvins), pressure P (in atmospheres), and volume V (in liters) is PV
JulijaS [17]

Answer:

\frac{dT}{dt}=3.78^{\circ}K/min

Step-by-step explanation:

We have to calculate the time derivative of T=PV/nR with P and V variable and n and R constants. This is:

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What we have to do is the derivative of a product:

\frac{d(PV)}{dt}=P\frac{dV}{dt}+V\frac{dP}{dt}

Substituting, we have:

\frac{dT}{dt} =\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}

where all these values are given since the time derivatives of P and V are their variation rate, using minutes.

We then substitute everything, noticing that already everything is in the same system of units so they cancel out:

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And then just calculate:

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