Answer:
25
Step-by-step explanation:
Answer:
Step-by-step explanation: x^2-10x+21=0
(x-7)(x-3)
x = 3,7
Answer:
$16.80
Step-by-step explanation:
This is because $21 times .20 is $4.2.
$21-$4.2= $16.80.
Answer:
Multiply the top equation by two because both y value will become opposites and will eliminate.
Please give Brainliest! I never got one! :)
Answer:
Mean = 7
Step-by-step explanation:
Given the following data;
Number of games = 8
Scores = 5, 11, 9, 9, 4, 5, 6, 7
We would sum all the scores together to get a total score.
Total scores = 5 + 11 + 9 + 9 + 4 + 5 + 6 + 7 = 56
Now, to find the mean;

Mean = 56/8
Mean = 7