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sveticcg [70]
3 years ago
5

The following are the temperatures of 10 days in winter in °C. -5, 1, -2, 7, -3, 9, 7, -5, -2, -5 Work out the mean temperature.

Mathematics
2 answers:
Citrus2011 [14]3 years ago
5 0

Answer:

probably 0.2 and sorry if wrong

mojhsa [17]3 years ago
5 0
0.2 because

mean = adding all numbers together then divide by the amount of numbers there is
so -5 + 1 + -2 +7+-3+9+7+-5+-2+-5 = 2 then divide by 10 (cause 10 numbers)
answer = 0.2
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<em>First.</em> Let us prove that the sum of three consecutive integers is divisible by 3.

Three consecutive integers can be written as k, k+1, k+2. Then, if we denote their sum as n:

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So, n can be written as 3 times another integer, thus n is divisible by 3.

<em>Second. </em>Let us prove that any number divisible by 3 can be written as the sum of three consecutive integers.

Assume that n is divisible by 3. The above proof suggest that we write it as

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Step-by-step explanation:

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3 years ago
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salantis [7]

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Step-by-step explanation:

Using the addition formula for tangent

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tan(60 - 45)°

= \frac{tan60-tan45}{1+tan60tan45}

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Rationalise the denominator by multiplying numerator/ denominator by the conjugate of the denominator.

The conjugate of 1 + \sqrt{3} is 1 - \sqrt{3}

= \frac{(\sqrt{3}-1)(1-\sqrt{3})  }{(1+\sqrt{3})(1-\sqrt{3})  } ← expand numerator/denominator using FOIL

= \frac{\sqrt{3}-3-1+\sqrt{3}  }{1-3}

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3 0
3 years ago
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Flauer [41]

Answer:

A. 19,70,91

Step-by-step explanation:

Interior angle =180

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6 0
3 years ago
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attashe74 [19]

Answer:

6

Step-by-step explanation:

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= 6

6 0
3 years ago
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