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USPshnik [31]
2 years ago
8

Which statement is not correct?

Mathematics
2 answers:
pogonyaev2 years ago
7 0

Step-by-step explanation:

A. A 185° angle is an obtuse angle

..................

qaws [65]2 years ago
6 0

Answer:

A 185° angle is an obtuse angle

Step-by-step explanation:

An obtuse angle is any angle that is greater than 90° and less than 180°

Therefore, a 185° angle is not obtuse

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Please answer There is a bag filled with 3 blue and 5 red marbles. A marble is taken at random from the bag, the colour is noted
Misha Larkins [42]

Answer:

\frac{15}{28}  is the required probability.

Step-by-step explanation:

Total number of Marbles = Blue + Red = 3 + 5 = 8

Probability of getting blue = \frac{3}{8}

Probability of not getting a blue =\frac{5}{8}

To get exactly one blue in two draws, we either get a blue, not blue, or a not blue, blue.

<u>First Draw Blue, Second Draw Not Blue:</u>

1st Draw: P(Blue) = \frac{3}{8}

2nd Draw: P(Not\:Blue)=\frac{5}{7}  (since we did not replace the first marble)

To get the probability of the event, since each draw is independent, we multiply both probabilities.

P(Event)=\frac{3}{8}\cdot \frac{5}{7}=\frac{15}{56}

<u>First Draw Not Blue, Second Draw Not Blue:</u>

1st Draw: P(Not\:Blue)=\frac{5}{8}

2nd Draw: P(Not\:Blue)=\frac{3}{7}  (since we did not replace the first marble)

To get the probability of the event, since each draw is independent, we multiply both probabilities.

P(Event)=\frac{5}{8}\cdot \frac{3}{7}=\frac{15}{56}

To get the probability of exactly one blue, we add both of the events:

\frac{15}{56}+\frac{15}{56}=\frac{15}{28}

4 0
2 years ago
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Answer:100000000000000000000000000000 quint zillion

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Which statement below is correct​
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