The union of sets P = {5, 6, 7, 8, 9} Q = {1, 2, 3, 4, 5} is given by which of the following? {1, 2, 3, 4, 5, 6, 7, 8, 9} {1, 2,
vaieri [72.5K]
Answer: First option.
Step-by-step explanation:
Given two sets <em>A</em> and <em>B, </em>the union (<em>A</em>∪B) will be the set of elements which belong to either <em>A</em> or to <em>B</em> or to both.
Inf this case you have these two sets:
{
} and 
{
}
To find the union of these sets, put together the elements of the set <em>P</em> and the elements of the set <em>Q</em> (you need to remember that no element must be repeated).
Then, you get that the union of sets <em>P </em>and <em>Q</em> is:
∪{
}
This matches with the first option.
First we set up our equation. We know she has $9,215, and she gets paid $45 an hour. So our variable would be the hours she has to work.
45n=9,215
Since we don't have any like terms to combine, we just divide both sides by 45, to isolate the variable.
n=204.8 Hope this helped!
-TTL
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21 -
There are 1000 m in 1 km.
441.96/1000 = 0.44196
0.44196 km
22 -
There are 1000 mg in 1 g.
5700/1000 = 5.7
5.7 g
23 -
There are 1000 mL in 1 L.
0.946 * 1000 = 946
946 mL
24 -
There are 10 mm in 1 cm.
60(10)=600
600/50=12
12 beads
25 -
There are 1000 mL in 1 L.
1500(2)=3000
3000/1000=3
3 L
26 -
There are 100 cm in 1 m.
110(100)=11000
11000-8=10992
10992 cm
Answer:
<u>1/8910720</u>
Step-by-step explanation:
Number of ways they can be chosen :
⇒ 17 × 16 × 15 × 14 × 13 × 12
⇒ 272 × 15 × 14 × 13 × 12
⇒ 4080 × 14 × 13 × 12
⇒ 57120 × 13 × 12
⇒ 742560 × 12
⇒ <u>8910720</u>
Hence, the probability will be :
⇒ P = 1 / number of ways
⇒ P = <u>1/8910720</u>
