Answer:c
Step-by-step explanation:
Answer:
144
Step-by-step explanation:
Multiply each option together 9X4X4=144
The mean height of the basketball players is 80.3 inches
For given question,
we have been given the list of heights, in inches, for a sample of college basketball players.
We need to find the mean height of the basketball players.
We know that, for given sample of data
mean = sum of all observations ÷ total number of observation
First we find the sum of given heights.
78 + 83 + 82 + 78 + 78 + 80+ 81 +79+ 79 +83+ 77 +78+ 84+ 82+ 80+ 80 +82+ 84+78+ 80 = 1606
Total number of observations = 20
Using the formula of mean,
⇒ mean height = 1606/20
⇒ mean height = 80.3 inches
Therefore, the mean height of the basketball players is 80.3 inches
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Answer:

Step-by-step explanation:
The equation of the line in Slope-Intercept form is:

Where "m" is the slope and "c" is the y-intercept.
By definition:
1. If the lines of the System of equations are parallel (whrn they have the same slope), the system has No solutions.
2. If the they are the same exact line, the System of equations has Infinite solutions.
(A) Let's solve for "y" from the first equation:

You can notice that:

In order make that the System has No solutions, the slopes must be the same, but the y-intercept must not. Then, the values of "a" and "b" can be:

Substituting those values into the second equation and solving for "y", you get:

You can idenfity that:

Therefore, they are parallel.
(B) In order make that the System has Infinite solutions, the slopes and the y-intercepts of both equations must be the same. Then, the values of "a" and "b" can be:

If you substitute those values into the second equation and then you solve for "y", you get:

You can identify that:

Therefore, they are the same line.