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Ira Lisetskai [31]
3 years ago
6

What are the solutions 3x²- x + 4 = 0?

Mathematics
1 answer:
Strike441 [17]3 years ago
3 0

Answer:

69

Step-by-step explanation:

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Multiply 8-2x/5* 45x^3+90^2/10x^2-20x-80
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excuse me can you speak english

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3 years ago
Eight is less than twice its number
Anni [7]

Answer:

2x-8

Step-by-step explanation:

From the question the meaning of the expression is

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2x - 8

I hope this was helpful, please mark as brainliest

3 0
3 years ago
What is the range of the relation?<br> (-3,-2,0,2)<br> (-3,3)<br> (-4,-2,1,2)<br> (-4,-3,-2,1,0,2)
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jn8huuojgui

Step-by-s

3 0
3 years ago
The average and standard deviation of a measurement is 15.0 ± 5.0. if 100 students measured the value, how many would you expect
AURORKA [14]

Solution: We are given:

\mu=15, \sigma=5

Using the empirical rule, we have:

\mu \pm \sigma covers 68% of data.

Also the percentage of values below mean = Percentage of values above mean = 50%

Now, let's find the z score for x=20

z=\frac{20-15}{5}=1

Therefore, the percentage of values greater than 1 standard deviation above mean 50\% - \frac{68\%}{2} =50\%-34\%=16%

Expected number of students = 16% of 100 = 16


4 0
4 years ago
Julia is opening a clothing store. She plans to start by selling sweatshirts. if it costs her $9.50 for each sweatshirt, $5 for
Lilit [14]
B is definatly the correct answer, Add all of the prices, and that is what it costs per sweatshirt
7 0
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