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3 years ago

13

Two marbles are drawn without replacement from a box with 3 white, 2 green, 2 red, and 1 blue marble. Find the probability that

the second marble is blue when given that the first marble is red.

1 answer:

Likurg_2 [28]3 years ago

7 0

White 3/8
Green 2/8
Red 2/8
Blue 1/8

Blue 1/7

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Naddika [18.5K]

Answer:

a. 4r² b. 2r c. 6 cm

Step-by-step explanation:

The surface area A of the cube is A = 24r². We know that the surface area, A of a cube also equals A = 6L² where L is the length of its side.

Now, equating both expressions, 6L² = 24r²

dividing both sides by 6, we have

6L²/6 = 24r²/6

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b. Since L² = 4r² the rea of one face of the cube, taking square roots of both sides, we have

√L² = √4r²

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So, the polynomial that represents the length of an edge of the cube is L = 2r

c. The length of an edge of the cube is L = 2r. When r = 3 cm.

L = 2r = 2 × 3 cm = 6 cm

So, the length of an edge of the cube is 6 cm.

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Answer:

$1 \frac{5}{8} > 1.6$

Step-by-step explanation:

$1 \frac{5}{8} \: ... \: 1.6$

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$\frac{8 + 5}{8} \: ... \: 1.6$

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$\frac{13}{8} \: ... \: \frac{16}{10}$

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$\frac{65}{40} \: ... \: \frac{64}{40}$

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