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8_murik_8 [283]
3 years ago
13

How much of the sphere do you have to paint red so that no matter ow you put a cube in it, some corner touches red?

Mathematics
1 answer:
Triss [41]3 years ago
4 0

Explanation:

To achive that you have to piant a ring in red, which will have its big diameter equal to the sphere diameter and its small diameter equal to the cube diagonal.

The diagonal of the cube can be calculated using Pithagoras:

D^2=L^2+L^2

Where D is the diagonal and L is the side of the cube

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How many possibilities are there if you are creating a 4-digit password using the digits 0 through 9? You may repeat numbers.
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7 0
3 years ago
What is (-5/8) x (2/3)?
frozen [14]
-5/12 would be the answer
3 0
2 years ago
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The inequality 10.45b + 56.50 &lt; 292.67 is used to find the number of boxes (b) that can be loaded on a truck without exceedin
PSYCHO15rus [73]
We solve the inequality by subtracting 56.50 from both sides of the equation,
                                10.45b + 56.50 - 56.50 < 292.67 - 56.50 
                                        10.45b < 236.17
Then, divide both sides of the inequality by 10.45
                                             b < 22.6
The solution suggests that the number of boxes than can be loaded on a truck without exceeding the weight limit of the truck should always be lesser than 22.6. Since we are talking about number of boxes, the maximum number of boxes that can be loaded should only be 22. 
6 0
3 years ago
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Find the length of the unknown side . round your answer to the nearest tenth
katovenus [111]

Answer:

20cm or A

Step-by-step explanation:

pythagorean theorem

25^2=15^2+b^2

625=225+b^2

b^2=400

b=20

3 0
3 years ago
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Adam put $100 in a savings account. After 10 years, he had $1649 in the account. What rate of interest did he earn? Use the form
Rina8888 [55]

Answer:

Step-by-step explanation: C. 28%

A = Pe^{rt}

1649 = 100 \cdot e^{10r}\\16.49 = e^{10r}\\\ln{16.49} = 10r\\r = \frac{\ln{16.49}}{10} = 0.28\\

7 0
2 years ago
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