Answer:
1 / 5
Step-by-step explanation:
Given that:
Number of white marbles = 5
Number of blue marbles = 3
Number of green marbles = 7
Required is the approximate probability of drawing 2 green marbles, Note that drawing is done without replacement :
Probability = required outcome / Total possible outcomes
Total possible outcomes = sum of all marbles = (5 + 3 + 7) = 15 marbles
First draw:
P(Green) = 7 / 15
Second draw:
Required outcome = 7 - 1 = 6
Possible outcomes = 15 - 1 = 14
P(green) = 6 / 14
Probability of drawing out two green marbles :
(7/15 * 6/14) = 42 / 210 = 1 / 5
In fraction form it would be 5/2
Answer:
x = 2 + 4 i or x = 2 - 4 i
Step-by-step explanation:
Solve for x:
(x - 2)^2 = -16
Hint: | Eliminate the exponent on the left hand side.
Take the square root of both sides:
x - 2 = 4 i or x - 2 = -4 i
Hint: | Look at the first equation: Solve for x.
Add 2 to both sides:
x = 2 + 4 i or x - 2 = -4 i
Hint: | Look at the second equation: Solve for x.
Add 2 to both sides:
Answer: x = 2 + 4 i or x = 2 - 4 i
4 mins = 153 copies
1 min = 153 ÷ 4 = 38.25 copies
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Answer: 38.25 copies/min