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3 years ago

15

Cydney built a display stand out of two cubes. The larger cube is 8 inches on each side. The smaller cube is 4 inches on each si

de. She painted the display stand after she put the two cubes together. She did not paint the bottom of the display stand. What was the total area she painted? Please show me how you figured this problem out. Thank You!

1 answer:

aivan3 [116]3 years ago

5 0

The total area painted was 480 inches. 4 cubed is 64, 8 cubed 512. 512 +64= 576. Then you subtract two sides of the 4 inch square because the bottom is not painted and one side is pushed against the 8 inch cube. That means 576-32= 544. Then you subtract the bottom of the 8 inch cube, which means 544-64= 480.

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3 years ago

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3 years ago

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dsp73

Answer:

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Step-by-step explanation:

Given (Omitted from the question)

$Red = 7$

$White = 9$

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Solving (a): $P(First\ White\ and\ Second\ Blue)$

This is calculated using:

$P(First\ White\ and\ Second\ Blue) = P(White) * P(Blue)$

$P(First\ White\ and\ Second\ Blue) = \frac{n(White)}{Total} * \frac{n(Blue)}{Total - 1}$

<em>We used Total - 1 because it is a probability without replacement</em>

So, we have:

$P(First\ White\ and\ Second\ Blue) = \frac{9}{21} * \frac{5}{21 - 1}$

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This is calculated as:

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