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2 years ago

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A sock drawer has 17 folded pairs of socks, with 5 pairs of white, 8 pairs of black and 4 pairs of blue. What is the probability

, without looking in the drawer, that you will first select and remove a black pair, then select either a blue or a white pair?

1 answer:

jolli1 [7]2 years ago

8 0

Answer:

26.4%

Step-by-step explanation:

PLS GIVE BRAINLIEST

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if j is 21 inches, k is 12 inches, and angle M measures 62 degrees, then find m using the Law is Cosines. round your answer to t

AURORKA [14]

Answer:

18.7

Step-by-step explanation:

The Law of Cosines is $c^2=a^2+b^2-2ab cos(C)$ , where c is the unknown side length of a triangle, a and b are the remaining two side lengths, and C is the angle opposite to side c. To answer this question just plug in the known values:

$m^2=21^2+12^2-2(21)(12) cos(62)$

Simplify:

$m^2=441+144-504 cos(62)$

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Answer:

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$x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}$

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$\frac{-7+\sqrt{301}}{2\left(-7\right)}$

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$\frac{-7-\sqrt{301}}{2\left(-7\right)}$

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$answer=\frac{7+\sqrt{301}}{14}$

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