9 times 43 is 387 split 9 and 43 and put It in the area model and then add them up
The missing number in the given data that has a mean of 79 is: 60.
<h3>How to Find the mean of a Data?</h3>
The mean of a data set is simply the average, that is, it is the sum of all data values divided by the number of data values.
Let x represent the missing number in the data. If the mean is 79, we would have the following:
(89 + 74 + 92 + 80 + x)/5 = 79
(335 + x)/5 = 79
335 + x = 5(79)
335 + x = 395
x = 395 - 335
x = 60
Missing number is: 60.
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4, 2, and 6 are all exterior angles. The triangle angles are adjacent (next to) to exterior angles. The angles that are not inside the triangle or vertical angles are exterior angles.
Hopes this helps:
Answer: x = -12
How I know I use this app called Cymath.