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Elodia [21]
3 years ago
7

What is the difference when 3x2 - 4x + 2 is subtracted from 7x2 + 5x – 1?

Mathematics
2 answers:
DochEvi [55]3 years ago
6 0

Answer:

Step-by-step explanation:

7x^2 + 5x - 1 - 3x^2 + 4x - 2

4x^2 + 9x - 3

Otrada [13]3 years ago
5 0
I think the difference is 4x^2+x+1

Hope this helps
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10 POINTS Math unit 5.11! PLEASE HELP
agasfer [191]

To write the function to show the weekly growth rate of population , we first find the weekly growth rate by dividing yearly growth rate by 52 ( as there are 52 weeks in an year)

Given function is ,

P=120(1.016)^t

or

P=120(1+0.016)^t

To convert in weekly growth rate , divide 0.016 by 52

So formula for weekly growth rate of population is

P=120(1+ \frac{0.016}{52})^{52t}

or

P=120(1+ \frac{1}{3250})^{52t}

And the weekly growth rate = \frac{1}{3250}

7 0
3 years ago
Question 18 Item 18 The distribution of the number of moths captured per night by a certain moth trap is approximately normal wi
juin [17]

Answer:

Standard deviation 46.3

Step-by-step explanation:

A 28% of the distribution is equivalent to a z score of -0.5828, you can use a z table to find that.

Z score is calculated as follows:

z = \frac{x-\mu}{\sigma}

x is the number being evaluated

μ is the mean

σ is the standard deviation

And it is used to calculate how many standard deviations you are from the mean of the sample.

Replacing with the known information you can calculate the standard deviation:

\sigma=\frac{x-\mu}{z} =\frac{76-103}{-0.5828}= 46.3

4 0
3 years ago
Change 21 out of 71 to a percentage. Give your answer to 1 decimal place
melisa1 [442]
1. 29.6%
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3 0
3 years ago
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Students are selling chocolate bars for a school fundraiser. They collect $17 for every 10 chocolate bars they sell. Suppose M i
Paul [167]

Answer:

i think the answer is

17m+10c=x

Step-by-step explanation:

4 0
2 years ago
Whoever answers the problem correctly gets brainliest, 5 stars ✨, and 10 points.
liubo4ka [24]
The answer is 880 yards.

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I hope this helps! :D
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3 years ago
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