Answer:
7/4
Step-by-step explanation:
Answer:
x = 3 and x = -3 (aka. x = ±3)
Step-by-step explanation:
2x² - 18 = 0
x² - 9 = 0
x² = 9
x = ±3
Therefore, x = 3 and x = -3
The mean is the average of the numbers, so if x = all 11 numbers added together, then you have the equation:
x / 11 = 7, so x = 77 (this is all of the numbers added together)
if the number 13 is removed, the equation becomes:
(77 - 13) / 10 = M (M is the new mean)
so the new mean is 6.4
Ok I did, do you need me to tell you the answers for the missing ones? Let me know, I can just do it in the calculator haha
Answer:
64.96 inches
Step-by-step explanation:
this is because calculations excuse length value by dividing by 2.54