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ddd [48]
3 years ago
15

It's number nine/ what equation is it plz help

Mathematics
2 answers:
sasho [114]3 years ago
6 0
I think the answer is C
klio [65]3 years ago
3 0
I think the answer is B sorry if it's wrong
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8³=512 indique a base
EleoNora [17]

Answer:

8

Step-by-step explanation:

8^3 = 8*8*8 = 512

la base = base = 8

5 0
3 years ago
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:

\frac{dT}{dt} =\frac{d\frac{PV}{nR}}{dt}=\frac{1}{nR}\frac{d(PV)}{dt}

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:

\frac{dT}{dt}=\frac{P\frac{dV}{dt}+V\frac{dP}{dt}}{nR}=\frac{(8atm)(0.16L/min)+(13L)(0.14atm/min)}{(10mol)(0.0821Latm/mol^{\circ}K)}

And then just calculate:

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

6 0
3 years ago
HELP PLEASE!!<br> what is the solution of the system ? y=-8x-2 and y=-6x+4
Illusion [34]

Answer: -3

Since the both equal the same value we can combine the into -8x-2=-6x+4.

From there you can solve from whatever side you want, and the answer is -3.

5 0
3 years ago
on monday the bookstore sold 75 books. on tuesday the bookstore sold 125 books. the bookstore must sell 500 book by friday how m
Serhud [2]
There were 200 books sold. so, they need to sell 300 more to have 500 total books sold.
5 0
3 years ago
Read 2 more answers
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horrorfan [7]

do you sell genius brain

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2 years ago
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