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GenaCL600 [577]
3 years ago
14

A bag contains 2 red marbles 7 blue marbles 5 green marbles. If two marbles are drawn out of the bag, what is the exact probabil

ity that both marbles will be blue
Mathematics
1 answer:
uranmaximum [27]3 years ago
7 0

Answer:2/14

Step-by-step explanation:

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B) Parallel

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The lines have the same slope of \frac{4}{3}. This makes the lines parallel.

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4 years ago
Which expression is equivalent to -Assume
Elden [556K]
Remember
(abc)/(def)=(a/d)/(b/e)(c/f)
and
(x^m)/(x^n)=x^(m-n)
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3 years ago
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Hello I need help with some math homework. PLEASE HELP!!! I'll send an attachment.
soldier1979 [14.2K]
PART 1.
Going westward:
Distance: 2400 miles
Rate (this is speed): (450-wind_speed) mph
Time: distance / speed = 2400 / (450-wind speed)

Going eastward:
Distance: 2400 miles
Rate (this is speed): (450+wind_speed) mph
Time: distance / speed = 2400 / (450+wind speed)


PART 2
Formula for speed:
speed = distance / time
Now we solve this for time:
time = distance / speed
11h = 2400 / (450+-wind_speed)

+- sign is put because in one case wind increases speed of plane and in other case it decreases speed.

PART 3
To solve for wind_speed we start by rearranging formula so that we have wind_speed on left side:
(450+-wind_speed) = 2400 / 11
(450+-wind_speed) = 218mph
To fly this distance in 11h speed of plane must be 218mph.
The only way to get this solution is if we substract wind speed:
450-wind_speed = 218
wind_speed = 450-218 = 232mph
5 0
3 years ago
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