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steposvetlana [31]
2 years ago
7

a bag contains 1 red beads 2 yellow beads 2 green beads and 1 blue bead a bean is choose and at random what is the probability t

hat is green​
Mathematics
1 answer:
Kisachek [45]2 years ago
4 0

Answer:

Step-by-step explanation:

Add all the beads together to get your total amount of beads (This will be your denominator)

1+2+2+1=6 beads in total

You only want to focus on the amount of green beads. (Which is 2 and that will be you numerator)

\frac{Numerator}{Demonator}=\frac{green beads}{Total amount of beads}

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ololo11 [35]

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Step-by-step explanation:

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3 years ago
How do you work out a percentile rank of a score of 57
arlik [135]
To do that you'll need the mean and standard deviation of all the scores.  Can you provide this info?

For example:  Supposing that the mean of these scores were 52 and the standard deviation 3.  You'd need to find the "z-score" of 57 in this case.
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It is  z = ------------ , or z = 5/3, or z = 1.67.
                     3

Find the area to the left of z = 1.67.  Multiply that area by 100% to find the percentile rank of the score 57.
8 0
3 years ago
Alicia and 3 of her friends entered a robotics competition. The rules
natima [27]

Answer:

A. x/4 = 12

Step-by-step explanation:

Alicia and 3 of her friends are 4 people in total. To find what they spent, you do 4 • 12 = x, which is the same as x/4 = 12

4 0
3 years ago
Find the missing height of the cone. Volume= 118π ft3 Diameter= 2/3
grin007 [14]

Answer:

11 ft

Step-by-step explanation:

The equation for the volume of a cone is:

V = 1/3(3.14)r^2h

V = 414.48

r = 6

Plug in those values and solve for h:

414.48 = 1/3(3.14)(6)^2h

414.48 = 37.68h ; divide both sides by 37.68

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The missing height is 11ft.

6 0
3 years ago
Whitney has a sprinkler than covers a circular area with diameter 24 feet. What is the area of lawn that the sprinkler covers? (
grin007 [14]
Answer:
I think the answer is 7.64331210191

Explanation:
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3 years ago
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