The median is the middle number when you arrange the data in ascending order. The mean is all the data added up and divided by the number of data points, which is 8. The mean was 13.25, but rounded to the nearest 10th is 13.3.

5 0

3 years ago

First to answer correctly gets brainleist! please i need this asap :)

mina [271]

Answer:

slope = -3; y-intercept = 1/2

Step-by-step explanation:

A way to solve this problem would be to write equations based off of the answer choices on the right, plug the x and y values from the chart into those equations, and see if they are true.

Let's look at the third option choice. Given that the slope = -3 and the y-intercept is 1/2, we can write an equation using the slope-intercept format, y= mx + b, where m is the slope and b is the y-intercept. So, the equation for that would be y= -3x + 1/2.

Let's try plugging in some x and y values and testing if they are true. Let's take the point $(-1, 3\frac{1}{2} )$ from the chart for example:

$(3\frac{1}{2}) = -3(-1) + \frac{1}{2} \\(3\frac{1}{2}) = 3 + \frac{1}{2} \\3\frac{1}{2}= 3\frac{1}{2}$

So, since $3\frac{1}{2}$ does equal to $3\frac{1}{2}$ , it is true, making that the correct answer. You could plug in any other point from the chart to check, too - it's good to check multiple, but for the sake of brevity, I just put that as one example.

7 0

3 years ago

Use scientific notation to find the product of 4.59 · 10 -5 and 30. Include all of your calculations in your final answer.

Anarel [89]

6 0

3 years ago