Answer:
20 degrees
Step-by-step explanation:
Triangles= 180 degrees total
the tangeant line makes 90 degrees
then you add the seventy degrees
180-90-70=20
Step-by-step explanation:
The formula for point slope form is
y - y1 = m( x - x1)
Hope it will help :)
Total marbles in the bag = 15
Red marbles in the bag = 5
Probability of picking a red marble the first time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble the second time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble the third time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble the fourth time = 5/15 .
If you put it back, then everything goes back to the beginning.
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Probability of picking a red marble the 20th time = 5/15 .
If you put it back, then everything goes back to the beginning.
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Probability of picking a red marble the ' Nth ' time = 5/15 .
If you put it back, then everything goes back to the beginning.
Probability of picking a red marble ' N ' times in a row = (5/15)^N.
Probability of picking a red marble 3 times in a row = (5/15) (5/15) (5/15).
Probability of picking a red marble 2 times in a row = (5/15) x (5/15)
= (25/225) = 1/9
= 11.1% (rounded).