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Darya [45]
3 years ago
7

A golf ball is selected at random from a golf bag. If the golf bag contains 8 type A balls, 6 type B balls and 7 type C balls, f

ind the probability that the golf ball is not a type A ball
SAT
1 answer:
blagie [28]3 years ago
6 0

the probability that the golf ball would not be A would be 13 out of 21

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Newton’s law of cooling states that for a cooling substance with initial temperature t0, the temperature t(t) after t minutes ca
antoniya [11.8K]

The cooling rate of the substance is approximately 0.0732.

According to the statement, the Newton's law of cooling is defined by the following formula:

T(t) = T_{s} + (T_{o}-T_{s})\cdot e^{-k\cdot t} (1)

Where:

  • T_{s} - Final temperature, in degrees Celsius.
  • T_{o} - Initial temperature, in degrees Celsius.
  • t - Time, in minutes.
  • k - Cooling rate, in \frac{1}{min}.
  • T(t) - Current temperature, in degrees Celsius.

Please notice that substance reaches thermal equilibrium when T(t) = T_{s}, that is when temperature of the substance is equal to the temperature of surrounding air.

If we know that T_{o} = 80\,^{\circ}C, t = 15\,min, T_{s} = 50\,^{\circ}C and T(15) = 60\,^{\circ}C, then the cooling rate of the substance is:

60 = 50 + (80 - 50)\cdot e^{-15\cdot k}

\frac{60-50}{80-50}= e^{-15\cdot k}

\frac{1}{3} = e^{-15\cdot k}

k = -\frac{1}{15}\cdot \ln \frac{1}{3}

k \approx 0.0732

The cooling rate of the substance is approximately 0.0732.

To learn more on Newton's law of cooling, we kindly invite to check this verified question: brainly.com/question/13748261

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Which of the following statements regarding the moon and earth is correct.
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Answer:

please the question is choice or what

7 0
3 years ago
the idea that the people have the right to abolish an abusive and unresponsive government was first formally expressed by americ
lawyer [7]

Americans formally stated in the Declaration of Independence that the people have the right to abolish an abusive and unresponsive government.

The Declaration's fundamental principle was that all "men are born and remain free and equal in rights" (Article 1), which were defined as the rights to liberty, private property, person inviolability, and resistance to oppression (Article 2).

The Declaration of Independence was written so that the thirteen colonies could declare their independence from Britain.The Declaration of Independence's introductory sentence states the Declaration's main purpose, which is to explain the colonists' right to revolution.  To put it another way, "to proclaim the reasons for their separation."

To know more about Declaration of Independence here-

brainly.com/question/14578050

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Which word from this excerpt could be used to argue that the narrator is unreliable? ""shaking"" suggests the narrator’s nervous
andriy [413]

Answer:

indefinite

Explanation:

ecause it unreliable

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Can a puddle of water erode soil yes or no ASAP.
Radda [10]

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Puddles of water seen after a rainstorm that are clouded with sediment suggest erosion is occurring whereas puddles of clear water are a sign of minimal erosion. Lighter colored soil seen overtime is also a sign of erosion but can be more difficult to identify.

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