The data in the stem-and-leaf plot (from least to greatest for easier organization) is:
75, 75, 84, 87, 96
(Stem and leaf plots are read from left to right, like tens place and then you add the number on the right to it. That is the one's place number.)
Number 1 asks for the median, and in this case, it has to be 85% or higher for you to answer "yes".
The median from this data set is the number "84".
Therefore, your answer will be "No."
Number 2 asks for the score that he should have on his last exam. That answer will be determined by doing as follows:
75+75+84+87+96+x (undetermined last quiz that we are finding.)
-------------------------- = 85 (the average that should be found.)
6
Now, in the start of this system or equation, you don't divide all of the numbers by 6. You add the numbers together (the numerator) and that should leave you with:
417+x = 85
---------
6
With this, you still won't divide in the fraction by 6. You'll multiply the denominator by 6 to cancel the denominator to make the equation easier to solve.
That will leave you with 417+x = 85.
Then, multiply the 85 by 6, since you did it to the denominator. That will give you 510.
Your equation should now be 417+x=510.
To solve, simply subtract 510-417, and you should get 93.
For number 2, your final answer should be a score of 93 to get 85 as an average.
The last answer would be set up like 75+75+84+87+96+90
------------------------------- = (the mean)
6
That is 84.5.
That means that he wont be reimbursed.
His average is 84.5.
If you need to, then round to the nearest tenth.
Hope I could help you ;)
The vertex angle is defined as the angle opposite the base. It can be calculated by formula, 180° - 2B = A where, B=base angle and A=vertex angle.
The two sides of an isosceles triangle are congruent, which means they are the same length. The third side of an isosceles triangle is larger than the other two and is known as the base.
Every triangle has three angles that add up to a total of 180°. The base angles are the two angles located along the base of isosceles triangles. In isosceles triangles, the base angles are always congruent, or equal.
The vertex angle is defined as the angle opposite the base. The vertex angle is always greater than the sum of the two base angles. The vertex angle is always calculated by subtracting the base angles from 180°, using the general formula: 180° - 2B = A, where B represents the base angle and A represents the vertex angle.
Thus, vertex angle is defined as the angle opposite the base.
To learn more about isosceles triangle refer here
brainly.com/question/18933031
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