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3 years ago

What is the median of the data set? 9, 3, 10, 12, 4, 5, 12, 2

Mathematics

2 answers:

svetoff [14.1K]3 years ago

5 0

Answer:

The median is 7.

Step-by-step explanation:

Temka [501]3 years ago

3 0

Median is 7. The median is the middle number in a set of data. First put the numbers in numerical order. 2 3 4 5 9 10 12 12, because the data set is even the two middle numbers are 5 and 9. 7 is in between 5 and 8 so the median would be 7.

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Express each rational number as a fraction or<br> mixed number in simplest form.<br> 25

Sloan [31]

25 expressed as a mixed number is just 25

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3 years ago

What time is four past eight at night

Juli2301 [7.4K]

Answer:

8:04 pm

Step-by-step explanation:

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2 years ago

Read 2 more answers

If -1 and 2 are the two zeros of the polynomial x3-4x2-7x+10 find the third zero

rewona [7]

note that the zeroes should be x = 1 and x = - 2 not x = - 1 and x = 2

the factors are then ( x - 1 ) and (x + 2)

and x³ - 4x² - 7x + 10 = (x - 1 )(x + 2) = x² + x - 2

thus x² + x - 2 is a factor

dividing x³ - 4x² - 7x + 10 by x² + x - 2 gives x - 5

the third zero is x = 5

check : (5)³ -4(5)² - 7(5) + 10 = 125 - 100 - 35 + 10 = 0

5 0

3 years ago

Ignore my writing <br> Solve the inequality

Reil [10]

Answer:

x=1

Step-by-step explanation:

-5 - (15x-1) = 2(7x-16) -x

Distribute the negative sign

-5-15x+1 = 2(7x-16)-x

Distribute the 2

-5-15x+1 = 14x -32-x

Combine like terms

-4-15x = 13x-32

Add 15x to each side

-4-15x+15x = 13x+15x-32

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Add 32 to each side

-4+32 = 28x-32+32

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Divide each side by 28

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6 0

3 years ago

The table below represents a function. Which of the following equations could be its function rule?

worty [1.4K]

Answer:

$y=2x-2$ is the required equation.

Therefore, the second option is true.

Step-by-step explanation:

We know that the slope-intercept form of the line equation of a linear function is given by

$y=mx+b$

where m is the slope and b is the y-intercept

Taking two points (0, -2) and (1, 0) from the table to determine the slope using the formula

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(0,\:-2\right),\:\left(x_2,\:y_2\right)=\left(1,\:0\right)$

$m=\frac{0-\left(-2\right)}{1-0}$

$m=2$

substituting the point (0, -2) and the slope m=2 in the slope-intercept form to determine the y-intercept i.e. 'b'.

$y=mx+b$

$-2 = 2(0)+b$

$-2=0+b$

$b=-2$

Now, substituting the values of m=2 and b=-2 in the slope-intercept form to determine the equation of a linear function

$y=mx+b$

$y=2x+(-2)$

$y=2x-2$

Thus, $y=2x-2$ is the required equation.

Therefore, the second option is true.

3 0

3 years ago