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andre [41]
3 years ago
14

PLEASE HELP ME I NEED THIS IN 15 MINUTES!!!

Mathematics
1 answer:
masha68 [24]3 years ago
6 0
You know what I think that other guy is really foul so I will answer your question for da brainliest

Step 1: (( 18 * (x^3)) + 5x^2) - 2x

Step 2: what you need to do is figure out what this equation really means but here I will tell you

The real step 1 is multiply the coefficient of the first term by the constant 18 times negative 2= negative 36

Step 2: find two factors of negative 36 whose sum is equals the coefficient of the middle term, which is 5.

-36 + 1 = -35

-18 + 2 = -16

-12 + 3 = -9

-9 + 4 = -5

-6 + 6 = 0

-4 + 9 = 5 that’s it

So your answer will be x times (9x - 2) times ( 2x + 1)
That is your answer
Hope this helped
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Melissa buys 1 calculator at £4.38 1 ruler at 45p 2 pencils at 29p each She pays with a £10 note. Work out how much change Melis
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Answer:

£4.59

Step-by-step explanation:

<em>4.38 + 0.45 + 0.58 (0.29 + 0.29) = 5.41</em>

£10.00 - 5.41 = £4.59

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3 years ago
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The answer is one.

Step-by-step explanation:

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Drag the numbers to order them from least to greatest
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Standard deviation 12,16,22,23,34,44,46,47,48,64,67,73,83,89, round to nearest tenth
RideAnS [48]

Answer: 23.9


Step-by-step explanation:

1. First, you must calculate the mean, as following:

\frac{12+16+22+23+34+44+46+47+48+64+67+73+83+89}{14}=47.71

2. Now, you should substract the means obtained to every single number of the set and then square it. Add all of them:

(12-47.71)^{2}+(16-47.71)^{2}+(22-47.71)^{2}+(23-47.71)^{2}+(34-47.71)^{2}+(44-47.71)^{2}+(46-47.71)^{2}+(47-47.71)^{2}+(48-47.71)^{2}+(64-47.71)^{2}+(67-47.71)^{2}+(73-47.71)^{2}+(83-47.71)^{2}+(89-47.71)^{2}=7984.86

3. The mean of this is:

\frac{7984.8574}{14}=570.35

4. The square root of this result is:

\sqrt{2.52}=23.88

5. To the nearest tenth, the result is: 23.9


5 0
3 years ago
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