Answer:
P U Q = {2, 3, 4, 5, 6, 7, 8, 9, 10}
P ∩ Q = {4, 6, 8}
Step-by-step explanation:
P = {2x, for 1 <= x <= 5}
P = {2, 4, 6, 8, 10}
Q = {x + 1, for 2 <= x <= 8}
Q = {3, 4, 5, 6, 7, 8, 9}
(A)3x+2
(D)2(x+1)+x
Given the expression: x+x+x+2
x+x+x+2=3x+2
Option A is 3x+2 which is equivalent.
In Option D
2(x+1)+x=2x+2+x=3x+2
Therefore, <u>Options A and D</u> are equivalent to the given expression.
18
because 20% of 90 is 18
23
First find the mean. 20 + 12 + 23 + 8 + 17 + 16 = 96 / 6 = 16
Take the highest number and subtract the mean 23 - 16 = 7
Do the same with the lowest 13 - 8 = 5
23 has a distance of 7 from the mean so it will have the greatest absolute deviation.
2:5
The structure of a ratio is x:y.
So all you have to do is place the former as the first digit and the latter as the second and separate them by a colon.
