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raketka [301]
2 years ago
11

Find the surface area of the solid figure

Mathematics
1 answer:
inessss [21]2 years ago
6 0

Answer: 998.9889956208

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The only contents of a container are 10 disks that are each numbered with a different positive integer from 1 through 10, inclus
allsm [11]

First we calculate for the total number of possibilities (permutation) to select 4 disks from the container:

Total number of possibilities = 10 * 9 * 8 * 7

Total number of possibilities = 5040

<span>
Now let us find the 4 disks that will result in a range of 7. </span>

Range = highest number – lowest number

The pair of highest and lowest number that will result in range of 7 is: (1 & 8), (2 & 9), (3 & 10)

 

As a basis of calculation, let us use the pair 1 & 8.

There are four possible ways to select 1 and three for 8.

Arrangements of maximum and minimum pair = 4 * 3

Arrangements of maximum and minimum pair=12

Now we need to calculate for the remaining 2 disk. There are 6 numbers between 1 & 8. The total possibilities for selecting 2 disk from the remaining 6 is:

Possibilities of selecting 2 disk from remaining 6 = 6 * 5

Possibilities of selecting 2 disk from remaining 6 = 30

Therefore, the total possibility to get a range of 7 from a pair of 1 & 8 is:

Total possibility for a pair = 12 * 30

Total possibility for a pair = 360

 

Since there are a total of three pairs (1 & 8), (2 & 9), (3 & 10):

Total possibilities of the 3 pairs = 360 * 3

Total possibilities of the 3 pairs = 1080

 

Therefore:

Probability = Total possibilities of the 3 pairs / Total number of possibilities

<span>Probability = 1080 / 5040 = 3 / 14                      (FINAL ANSWER)</span>

6 0
3 years ago
Is this right? plz help me
olga55 [171]

Answer:

no its the 3rd one

Step-by-step explanation:

thank me later

7 0
3 years ago
A pizza maker can make 8 pizzas in 12 minutes. What is the pizza maker's unit rate?
Mrrafil [7]
1 Pizza Every 1.5 Minutes
7 0
3 years ago
Read 2 more answers
The fraction in order form least to greatest 1/2 2/5 6/10
Over [174]
2/5,1/2,6/10 hope that helped!
8 0
3 years ago
Read 2 more answers
What is the percent of change if 30 is decreased to 25?
Luden [163]

Answer:

16.67%

Step-by-step explanation:

initial rate=30

final rate =25

decreased rate = 30 - 25= 5

Now,

Decreased % = (5 / 30) * 100%

= 16.67%

3 0
2 years ago
Read 2 more answers
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