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Anton [14]
2 years ago
13

A bag contains 11 red chips and 12 blue chips. Two chips are selected randomly without replacement from the bag. What is the pro

bability that the two chips are the same​ color? Round your answer to three decimal places as needed.
Mathematics
1 answer:
Elena-2011 [213]2 years ago
4 0

Answer:

11/23 or 0.478

Step-by-step explanation:

1. Find the probability of selecting 2 red chips:

11/23 * 10/22 = 5/23

2. Find the probability of selecting 2 blue chips:

12/23 * 11/22 = 6/23

3. Add the two probabilities:

5/23 + 6/23 = 11/23 = 0.478 (rounded to 3 decimal places)

hope this helps! <3

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An equilateral triangle has three 60 degree angles and three sides of equal lengths. One equilateral triangle has sides measures
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Find all real solutions of the equation by completing the square. (Enter your answers as a comma-separated list.) x2 − 4x − 8 =
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Answer:

After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

Step-by-step explanation:

We need to complete the square:

x^2 − 4x − 8 = 0

x^2 -2(x)(2)+(2)^2 -8 -4 =0

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Now, finding the value of x

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(x-2)^2 = 12

taking square root on both sides

\sqrt{(x-2)^2}= \sqrt{12} \\(x-2) = \pm\sqrt{12} \\x = \pm\sqrt{12} +2\\x = \sqrt{12}+2 \,\,and\,\,x=-\sqrt{12}+2\\x= 3.46+2 \,\,and\,\,x=-3.46+2\\x =5.46\,\,and\,\,x=-1.46

So, After completing the square the expression is (x-2)^2 -12 =0 and real solution are x = 5.46 and x = -1.46

5 0
3 years ago
What is 44.6825 rounded to the nearest hundredth
iren [92.7K]

Answer:

44.68

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

44.6825 rounded to the nearest hundredths place is 44.68

(っ◔◡◔)っ ♥ Hope this helped, have a great day! ♥

˜”*°•.˜”*°• ~Star •°*”˜.•°*”˜

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Could someone please help me with this problem and possibly explain if you can? (Will give up brainiest answer if correct, if po
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e=positive or negative 0.6
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3 years ago
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