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hjlf
3 years ago
8

According to Newton’s third law, for every action, there is an equal and opposite

Mathematics
2 answers:
Furkat [3]3 years ago
5 0
True? I dont know what you're trying to ask. if you're asking whether or not it's true, it is.
CaHeK987 [17]3 years ago
3 0

True. IDK if it's right but I think it's true.

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liberstina [14]
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3 years ago
Johnny is given 18 bottles of beer and he drinks 6 of them. How much beer does Johnny have left?
Gennadij [26K]

Answer: 12 bottles left

Step-by-step explanation:

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8 0
2 years ago
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Refer previous problem. Suppose that you wish to estimate the difference between the mean acidity for rainfalls at two different
aivan3 [116]

Answer:

Hence,we need at least 136 rainfall PH values in the sample i.e

n ≥ 136

Step-by-step explanation:

We are given that:

(σ1)^2 = (σ2)^2 = Population variance = 0.25

So, E < 0.1

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For confidence level, 1 - α = 0.9,we'll determine Z (α /2) = Z 0.05 by looking up 0.005 using the normal probability table which i have attached.

So, Z (α /2) = 1.645

The margin of error E is given as;

E = Z (α /2)√[(σ1)^2)/n1] + [(σ2)^2)/n2]

= Z (α /2)√({(σ1)^2 + (σ2)^2}/n) < 0.1

Multiply both sides by √n to get;

Z (α /2)√(σ1)^2 + (σ2)^2} < 0.1√n

Divide both sides by 0.1;

{Z (α /2)√(σ1)^2 + (σ2)^2}}/0.1 <√n

When we square each side, we get

{Z (α /2)√(σ1)^2 + (σ2)^2}}/0.1} ^2 < n

We'll now fill in the known values and solve;

n > ( 1.645 x √{(0.25 + 0.25)/0.1}^2

n > 135.3 or approximately n > 136

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7 0
3 years ago
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iren2701 [21]

Answer:

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Step-by-step explanation:

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madreJ [45]
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3 years ago
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