Answer:
12,10,-6,-9
Step-by-step explanation:
Answer:
a. x=69.188 +18 =87.188" (mean)
69.5+18=87.5" (median)
b. Standard deviation=3.20, IQR: 3.25
There's no change because your adding a value to all the data points.
Answer:
$8
Step-by-step explanation:
20% is 1/5, so you can basically divide $40 by 5, which is $8.
= (5a²)³ - 4³
you can apply the cubic factorisation rule
(a³ - b³) = (a - b)(a² - ab + b²)
= [5a² - 4][ (5a²)² - 20a² + 16]
= [5a² - 4][25a⁴ - 20a² +16]
I think this is it.
hope it helps.
:)