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Ainat [17]
3 years ago
7

Please help:(

Mathematics
1 answer:
Vladimir [108]3 years ago
7 0

Answer  c would be the answer hope it helps

Step-by-step ex planation:

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In a group of a hundred and fifty students attending a youth workshop in mombasa, 125 of them are fluent in kiswahili, 135 in en
jek_recluse [69]

Answer:

The probability that a student chosen at random is fluent in English or Swahili.

P(S∪E) = 1.1

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given total number of students n(T) = 150

Given 125 of them are fluent in Swahili

Let 'S' be the event of fluent in  Swahili language

n(S) = 125

The probability that the fluent in  Swahili language

P(S) = \frac{n(S)}{n(T)} = \frac{125}{150} = 0.8333

Let 'E' be the event of fluent in English language

n(E) = 135

The probability that the fluent in  English language

P(E) = \frac{n(E)}{n(T)} = \frac{135}{150} = 0.9

n(E∩S) = 95

The probability that the fluent in  English and Swahili

P(SnE) = \frac{n(SnE)}{n(T)} = \frac{95}{150} = 0.633

<u><em>Step(ii):</em></u>-

The probability that a student chosen at random is fluent in English or Swahili.

P(S∪E) = P(S) + P(E) - P(S∩E)

           = 0.833+0.9-0.633

           = 1.1

<u><em>Final answer:-</em></u>

The probability that a student chosen at random is fluent in English or Swahili.

P(S∪E) = 1.1

8 0
2 years ago
Twice the difference of a number and seven
levacccp [35]

The difference of a number and seven is x - 7. So twice that, would be:

2(x - 7)

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Solve 7x − 2(x + 1) = 6x + 14. (5 points)<br><br> −12<br><br> 12<br><br> −16<br><br> 16
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Answer:

C

X=-16

Step-by-step explanation:

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A guitar string has a number of frequencies at which it will naturally vibrate when it is plucked. These natural frequencies are
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Answer:

Step-by-step explanation:

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Abdul purchased n notebooks. They were 4 dollars each. Write an equation to represent the total cost c that Abdul paid.
Marysya12 [62]
This is the equation. Try it for yourself and see if it works.

C= n x 4
8 0
3 years ago
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