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1 year ago

A drawer contains loose socks. there are 2 blue and 4 black socks in the drawers. what is the probability that you choose a sock

without looking, then choose a second sock (keeping the first in your hand) without looking and end up with a pair of black socks?

Mathematics

1 answer:

otez555 [7]1 year ago

4 0

$|\Omega|=6\cdot5=30\\|A|=4\cdot3=13\\\\P(A)=\dfrac{12}{30}=\dfrac{2}{5}=40\%$

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ycow [4]

Answer:

area is equal to 198 cm^2

Step-by-step explanation:

the height h of the left triangle can be obtained by

Pytagoras theorem:

$5^2+h^2=13^2\\25+h^2=169\\h^2=169-25\\h^2=144\\h=\sqrt{144} \\h=12$

the, the area of the left triangle is

$A_1=\frac{5*12}{2} \\A_1=5*6\\A_1=30$

the area of the right triangle is

$A_2=\frac{2*12}{2} \\A_2=12$

and the area of the rectangle in the middle is

$A_3=(13)(12)\\A_3=156$

Por tanto, el area total sera

$A=A_1+A_2+A_3\\A=30+12+156\\A=198$

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

The distance from Palo Alto, CA and Columbus, OH is 2,470 miles. Due to the winds it takes 4 hours and 20 minutes to fly to Ohio

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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irakobra [83]

answer is attached below

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3 years ago