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3 years ago

PLS HELP BRAINLIEST WILL BE GIVEN :D

Mathematics

1 answer:

disa [49]3 years ago

6 0

Answer:

Step-by-step explanation:

By tracing the lines on the tree diagram, we see the probability of both being red is 0.5 × 0.6 = 0.3.

The probability of both being blue is 0.5 × 0.4 = 0.2.

So we would expect to get both blue 2/3 of the times we get both red.

X = 2/3 (84)

X = 56

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On August 20, 1989, in Cologne, West Germany, Said Aouita of Morocco also established a world record when he ran the 3000. m run

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Answer:

Average speed of Aouita = 6.68 meter per second.

Step-by-step explanation:

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Average speed = $\frac{\text{Total distance covered}}{\text{Total time taken}}$

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3 years ago

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3 years ago

On a number line, suppose the coordinate of A is 0 and AR=21. What are the possible coordinates of the midpoint of AR?

Gnoma [55]

Answer:

The possible coordinates of the midpoint are -10.5 and 10.5

Step-by-step explanation:

The given parameters are;

The coordinate of A = 0

The distance from A to R which is the same as AR = 21

Given that R is on the number line, we have;

When R is on the left side of A, which is = 0 - 21 = -21, we have;

The coordinates of the midpoint, M from -21 to 0 is given as follows;

M = (A + R)/2 = (0 - 21)/2 = -10.5

When R is on the right side of A, which is = 21 - 0 = 21, we have;

The coordinates of the midpoint, M from 21 to 0 is given as follows;

M = (A + R)/2 = (0 + 21)/2 = 10.5

Therefore, the possible coordinates of the midpoint are -10.5 and 10.5.

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4 years ago