If U = {a,b,c,d,e,f,g,h,i,j} A = {a,e,i} B = {b,c,d,e} Write the elements for the complement of (A u B)
Anit [1.1K]
Answer:
(f,g,h,i)
Step-by-step explanation:
(AuB)=(a,b,c,d,e,i)
(AuB) complement =(f,g,h,i)
Answer:
x^2 -81
Step-by-step explanation:
(x+9)(x-9)
FOIL
first x*x = x^2
outer -9x
inner 9x
last -9*9 = -81
Add them together
x^2 -9x+9x -81
Combine like terms
x^2 -81
Answer:
75
Step-by-step explanation:
Answer:
The t-score of 2.715 should be used
Step-by-step explanation:
Degrees of freedom ==> n - 1 ==> 38 - 1 ==> 37
to find 99% confidence interval, Hence,
Find t0.005 in front of 37 degrees of freedom,
Therefore the answer is, t-score = 2.715