<span>To find the union of the two sets simply write all of the elements together into one big set. Remove any duplicate entries (if there are any).</span>

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The intersection of the two sets A and B is the set of elements that are in BOTH sets. In this case, there is no overlap so we have

which is a way of saying "the empty set"
Answer:
34°
Step-by-step explanation:
The measure of vertical angles formed by two chords is equal to one half the sum the measures of the arcs.
In other words, x is the average:
x = (23° + 45°) / 2
x = 34°
Answer:
(8, 8200)
Step-by-step explanation:
It looks like you got it right, the point (8, 8200) is that of a collectors item car, that has not changed much its original price of about £10,000 (at year zero), having a value of £8,200 8 years later.
Answer:
x = 4 , y = 1
Step-by-step explanation:
3x + 2y = 14 → (1)
x + y = 5 → (2)
Multiplying (2) by - 2 and adding to (1) will eliminate the y- term
- 2x - 2y = - 10 → (3)
Add (1) and (3) term by term to eliminate y
x = 4
Substitute x = 4 into (2) and evaluate for y
4 + y = 5 ( subtract 4 from both sides )
y = 1