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Salsk061 [2.6K]
2 years ago
8

If f(x) = 4x + 5, which of these is the inverse of f(x)?

Mathematics
1 answer:
Vilka [71]2 years ago
7 0

i dont know sorry

Step-by-step explanation:

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4 is in the tenths place. 9 is in the ones. 5 is in the hundredths. 3 is in the thousandths.

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Can anyone help with expanding this?
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Step-by-step explanation:

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20. The H.M. between 2 and 8 is<br>(1 marks )​
e-lub [12.9K]

Answer as an improper fraction = 16/5

Answer as a mixed number = 3 & 1/5

Answer in decimal form = 3.2

All of those values represent the same thing, but written in a different way.

=============================================================

Explanation:

I'm assuming HM stands for Harmonic Mean in this case.

If so, then we apply the reciprocal operation to each value to get 1/2 and 1/8 (from 2 and 8 respectively).

Add up those fractions:

1/2 + 1/8 = 4/8 + 1/8 = 5/8

Now we'll divide n = 2 over that result. The n = 2 refers to the number of items in the original set.

n divide over (5/8) = 2*(8/5) = 16/5 which is the answer as an improper fraction

-----------

To convert to a mixed number, we can do the following:

16/5 = (15+1)/5

16/5 = 15/5 + 1/5

16/5 = 3 + 1/5

16/5 = 3 & 1/5

Or if you need the answer in decimal form, then using a calculator would get you 16/5 = 3.2

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3 years ago
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Answer:

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Step-by-step explanation:

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The temperature was 8°C then the temperature feel 9°C what was the temperature after it fell?
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Answer:

-1°C

Step-by-step explanation:

8°C - 9°C = -1°C

Hope it helps

4 0
3 years ago
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