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Leona [35]
2 years ago
13

What is 66 tens - 30 tens

Mathematics
1 answer:
jek_recluse [69]2 years ago
4 0

Answer:

66

-30

___

36

Step-by-step explanation:

The answer is 36 do 66 minus 36.

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Consider randomly selecting a student at a large university, and let A be the event that the selected student has a Visa card an
ziro4ka [17]

Answer:

1) is not possible

2) P(A∪B) = 0.7

3) 1- P(A∪B) =0.3

4) a) C=A∩B' and P(C)= 0.3

b)  P(D)= 0.4

Step-by-step explanation:

1) since the intersection of 2 events cannot be bigger than the smaller event then is not possible that P(A∩B)=0.5 since P(B)=0.4  . Thus the maximum possible value of P(A∩B) is 0.4

2) denoting A= getting Visa card , B= getting MasterCard the probability of getting one of the types of cards is given by

P(A∪B)= P(A)+P(B) - P(A∩B) = 0.6+0.4-0.3 = 0.7

P(A∪B) = 0.7

3) the probability that a student has neither type of card is 1- P(A∪B) = 1-0.7 = 0.3

4) the event C that the selected student has a visa card but not a MasterCard is given by  C=A∩B'  , where B' is the complement of B. Then

P(C)= P(A∩B') = P(A) - P(A∩B) = 0.6 - 0.3 = 0.3

the probability for the event D=a student has exactly one of the cards is

P(D)= P(A∩B') + P(A'∩B) = P(A∪B) - P(A∩B) = 0.7 - 0.3 = 0.4

3 0
3 years ago
Which expression is equivalent to (3a)–2?
Naddika [18.5K]
3a-2 is equivalent to (3a)-2

Hope my answer helped:)
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18 1/2 -17 3/4
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The 4th selection is appropriate.
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Is 3x = 2y a linear equation?​
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yes

Step-by-step explanation:

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Step-by-step explanation:

Look at sizes and comparisons between the sizes and all together should add to 1

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