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Tems11 [23]
3 years ago
8

If two marbles are randomly selected from the bag without replacement, what is the probability that the first marble is blue?

Mathematics
1 answer:
joja [24]3 years ago
8 0

Answer:1,0.5, or 0 it depends

Explanation:

The probability that one event occurred depends on the total of random event, being 1 the most of the probabilities

If the two marbles are blue the probability to select a marble blue is 1

If one of the marbles is blue and the other marble is of any color the probability to select the blue marbles is:

P=1 - 1/2=1/2

Being 1/2 or 0.5 the answer

If any of the marbles are blue then the probabilities are 0

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Answer:

D'(-2, 2); C''(3, -1); A'''(4, -2); and B''(4, 2)

Step-by-step explanation:

See attachment for the figure.

<u>For D'</u>, rotating the point (2, 2) 90° counterclockwise. This maps each point (x, y)→(-y, x); it takes (2, 2)→(-2, 2).  

For C'', rotating the point (1, 3) 90° clockwise.  This maps each point (x, y)→(y, -x); it takes (1, 3)→(3, -1).

For A''', rotating the point (-4, 2) 180° clockwise.  This maps every point (x, y)→(-x, -y); it takes (-4, 2)→(4, -2).

For B'', rotating the point (-2, 4) 270° counterclockwise.  This is the similar as rotating the point 90° clockwise.  This maps every point (x, y)→(y, -x); it takes (-2, 4)→(4, 2).

8 0
3 years ago
Find the ordered pairs for x and y intercepts of the equation 3x - 2y =18
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Wherever the line crosses the
x-axis, y=0.                                         3x        = 18
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The x-intercept is                                    (6, 0)  .


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Wherever the line crosses the
y-axis,  x=0.                                            - 2y = 18
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The y-intercept is                                        (0, -9)  .

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The answer above is correct.

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