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4 years ago

How to calculate minimum size ratio for coordination numbers?

Mathematics

1 answer:

Thepotemich [5.8K]4 years ago

7 0

<span>current ratio = current assets / current liablities</span>

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A scientist begins with 250 grams of a radioactive substance. After 250 minutes, the sample has decayed to 32 grams. Rounding to

s2008m [1.1K]

Answer:

Part 1 : $A=250 e^{-0.008223t}$

Part 2 : Half life is 84 minutes ( approx )

Step-by-step explanation:

Part 1 : Suppose the function that shows the amount( in grams ) of the substance after t minutes,

$A=A_0 e^{kt}$

If t = 0 min, A = 250 grams,

$250=A_0 e^{0}$

$\implies A_0 = 250$

If t = 250, A = 32 grams,

$32 = A_0 e^{250k}$

$32 = 250 e^{250k}$

$0.128 = e^{250k}$

Taking ln both sides,

$\ln(0.128) = 250k$

$\implies k =\frac{\ln(0.128)}{250}=-0.008223$

Hence, the equation that shows this situation,

$A=250 e^{-0.008223t}$

Part 2 : If A = 250/2 = 125,

$125 = 250 e^{-0.008223t}$

$0.5 = e^{-0.008223t}$

Taking ln both sides,

$\ln(0.5) = -0.008223t$

$\implies t =\frac{\ln(0.5)}{-0.008223}\approx 84$

Therefore, the half life of the substance would be 84 minutes.

8 0

4 years ago

Good night everyone

murzikaleks [220]

Answer:

Step-by-step explanation:

8 hours of sleep is healthy

4 0

4 years ago

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What is 25 +1023 (234 +98) -23

Grace [21]

That would be approximately 339638

7 0

3 years ago

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Write an equation in slope-intercept form for the line that passes through the given points.

Pachacha [2.7K]

First find the slope using (y1-y2)/(x1-x2)

(-2-4)/(5+16) = -6/21 or -2/7

Then plug in one of the points into y-y=m(x-x)

y + 2 = (-2/7)(x - 5)

Distribute the slope.

y + 2 = -2x/7 + 10/7

Subtract 2

y = -2x/7 - 4/7

So the answer is A.

3 0

3 years ago

Mr. Gardner is making 6 treat bags. He has 185 chocolate-covered raisins to share evenly among the treat bags.

Degger [83]

To find out the answer, we need to divide 185 by 6.

185÷6=30 with a remainder of 5.

There are going to be 30 <span>chocolate-covered raisins in each bag, with 5 of them left over.

I hope this helps.</span>

7 0

3 years ago

Read 2 more answers