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mina [271]
4 years ago
14

Which set or sets does the number -21 belong to

Mathematics
2 answers:
omeli [17]4 years ago
8 0
Inerger rational and real
evablogger [386]4 years ago
4 0

it is a negative number


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A number cube has the numbers 1, 2, 5, 5, 6, and 6 on its faces. Match the probability with the outcome. 1. P(5 ∪ 6) 2. P(2 ∪ 5
Tems11 [23]

Answer:

1. P(5 U 6) =2/3

2. P(2 U 5 U 6) = 5/6

3. P(1 U 2) = 1/3

4. P(4) = 0

Step-by-step explanation:

As the number cube has 6 sides,

So,

Total outcomes = {1,2,5,5,6,6}

n(S) = 6

Now,

1. P(5U6) = P(5) + P(6)

P(5)=2/6=1/3

P(6)=2/6=1/3

P(5U6)= 1/3 + 1/3 = 2/3

2. P(2 U 5 U 6) = P(2) + P(5) + P(6)

P(2)=1/6

P(5)=2/6

P(6)=2/6

P(2 U 5 U 6) = 1/6 + 2/6 + 2/6

= 5/6

3. P(1 U 2) = P(1) + P(2)

P(1) = 1/6

P(2)= 1/6

P(1 U 2) = 1/6 + 1/6

= 2/6 = 1/3

4. P(4) = 0

As 4 is not in the outcomes, it's probability will be zero ..

5 0
4 years ago
Increase 30g by 80%
olya-2409 [2.1K]

Answer: 54

Step-by-step explanation: 30, percentage increased by 80% (percent) of its value = 54

6 0
3 years ago
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Airida [17]

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Step-by-step explanation:

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3 years ago
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last week, todd started a new job. he worked 35 hours over 5 workdays of equal length. he makes $9 an hour. how much did todd ma
galben [10]

Answer:

b) $63

Step-by-step explanation:

35 hours / 5 days = 7 hours per day

7 x $9 = $63 per day

4 0
3 years ago
Find the length of the height of the cone.
Natali [406]

Answer:

h = 15 cm.

Step-by-step explanation:

h^{2} =(17)^{2} -(8)^{2} =289-64=225

h=\sqrt{225} =15

Hope this helps

5 0
2 years ago
Read 2 more answers
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