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Mathematics 13 Online
OpenStudy (bangtankawaii):

Help please? c:

OpenStudy (bangtankawaii):

A box has 8 beads of the same size, but all are different colors. Tamy draws a bead randomly from the box, notes its color, and then puts the bead back in the box. She repeats this 3 times. What is the probability that Tamy would pick a red bead on the first draw, then a white bead, and finally a red bead again?

OpenStudy (bangtankawaii):

oops wrong one

OpenStudy (bangtankawaii):

Mehek (mehek14):

First we have to find the surface area of the box

OpenStudy (bangtankawaii):

Oki

Mehek (mehek14):

\(11*8*2+11*7*2+8*7*2\)

OpenStudy (bangtankawaii):

176 + 154 + 112 = 442 inches squared

OpenStudy (bangtankawaii):

?

Mehek (mehek14):

Correct

OpenStudy (bangtankawaii):

Thanks.

Mehek (mehek14):

Now we need to multiply by 0.07

Mehek (mehek14):

Because it's 7c

OpenStudy (bangtankawaii):

$30.94?

Mehek (mehek14):

Yes :)

OpenStudy (bangtankawaii):

Thanks so much, man.

Mehek (mehek14):

You're welcome

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