3 years ago

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

Mathematics

1 answer:

Strike441 [17]3 years ago

3 0

Answer:

Step-by-step explanation:

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Multiply 8-2x/5* 45x^3+90^2/10x^2-20x-80

lys-0071 [83]

Answer:

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

Let the number be x

2x - 8

I hope this was helpful, please mark as brainliest

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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)

9966 [12]

Answer:

jn8huuojgui

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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

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3 years ago