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ki77a [65]
3 years ago
12

A jewel case contains 7 white gems, 5 green gems and 3 blue gems. gems are selected at random. explain why the events picking a

blue gem and then another blue gem without replacement are dependent. then, identify the probability.
Mathematics
1 answer:
dangina [55]3 years ago
4 0

Dependent event is an event that is affected by previous events. If you select the first blue gem from three, then the number of blue gems becomes 1 less and when choosing the second blue gem you have to select it from 2 blue gems. So, according to definition these events are dependent.

You have 7 white gems, 5 green gems and 3 blue gems that is 15 in total. Probability to choose first gem blue from jewel case is 3/15=1/5. Then there left 7 white gems, 5 green gems and 2 blue gems that is 14 in total. Probability to choose second gem blue from jewel case is 2/14=1/7.

Use the product rule to count the whole probability: 1/5·1/7=1/35.

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7 0
3 years ago
2 questions in the 2 pictures and then im done thank you
Tamiku [17]

Answer:

Hey there!

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3 0
3 years ago
PLEASE HELP ME QUICK!!!Can you form a triangle with angle measurements of 50°, 50° and 100° explain why or why not.
alex41 [277]

Answer:

No, you can't form a triangle because angles in a triangle add up to 180 degrees.

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7 0
3 years ago
Can someone pls help me with this?
lara [203]

Answer:

14 is A

15 is B

Step-by-step explanation:

14 . the answer is a because first off the slope is negative so we can immediately eliminate B and D second of all the slope is 1/2 so we can eliminate D and get that the answer has to be a

15. answer is B for this one because first of all the slope is negative so we can immediately eliminate A and c and second of all the y-intercept would be 120 because 90 is what x=1 so we would have to add 30 to get what y would equal when x=0 if that makes sense

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Can someone help me match these up? i know the given is number one I need help with the rest.
EleoNora [17]
C-1\\E-2\\B-3\\D-4\\A-5
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Read 2 more answers
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