The back to back stem and leaf plot below show exam scores from two different two different math classes. Which class has a grea
ter mean score ? Which class has a greater median score?
Class A Class B
12 4 2
168 5 4
5779 6 16
66789 7 2566
12 8 00489
1 9 3567
2 answers:
Answer:
B. greater mean = class B greater median = class B
Step-by-step explanation:
Answer:
what
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c d
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(6x–1)(6x+1) - 4x(9x+2) = −1
Simplify the left side:
36x^2-1 -36x^2-8x = -1
Combine like terms:
-1 -8x = -1
Add 1 to both sides:
-8x = 0
Divide both sides by -8:
x = 0 / -8
x = 0
The root is 0
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