A negative number * another negative number gives a positive value

A positive number * another positive number also gives a positive value

The solutions are -4, 4

Hope this helps :)

3 0

1 year ago

he dot plot shows the number of words students spelled correctly on a pre-test. A number line going from 2 to 11. 0 dots are abo

Klio2033 [76]

<h3>Answer: B. Graph is nearly symmetrical</h3>

Explanation:

Given information:

A number line going from 2 to 11.
0 dots are above 2.
0 dots are above 3.
1 dot is above 4.
2 dots are above 5.
4 dots are above 6.
4 dots are above 7.
3 dots are above 8.
2 dots are above 9.
2 dots are above 10.
0 dots are above 11.

From that we can see the data set is {4,5,5,6,6,6,6,7,7,7,7,8,8,8,9,9,10,10} which produces the dot plot you see in the image attachment below.

It's a bit tricky to see, but the graph is nearly symmetrical. If we were to remove the blue points in the dot plot I provided, then we'll get a perfectly symmetrical distribution. Symmetrical means one half is a mirror copy of the the other half. The center line of a symmetrical distribution is both the mean and median.