Answer:
Step-by-step explanation:
40080 x 10
= 400800
Answer:
x=-5
Step-by-step explanation:
Answer: 1 Real Root
Step by Step Explanation:
The discriminant uses the formula b^2-4ac. (^ means an exponent, b squared up above)
a=1, b =4, c=4 sub in those values into the formula.
(4)^2-4(1)(4) = 0
Since the answer is 0, the equation will have 1 real root.
Answer:
2a^2
Step-by-step explanation:
Answer:
A The mean would increase.
Step-by-step explanation:
mean = sum of numbers ÷ how many numbers there are
the mean with the outlier 11:
(11 + 85 + 87 + 88 + 91 + 91 + 92 + 93 + 95) ÷ 9 = 81.4
the mean when removing the outlier 11:
(85 + 87 + 88 + 91 + 91 + 92 + 93 + 95) ÷ 8 = 90.25
the mean has now increased