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malfutka [58]
3 years ago
5

Can the set of numbers 8,12,4 make a triangle? And if it can, does it make a right triangle

Mathematics
1 answer:
bagirrra123 [75]3 years ago
4 0

Answer:

  No

Step-by-step explanation:

The sum of the shorter two lengths is exactly equal to the longer length. The "triangle" made by these segments will look like a line segment of length 12. It will have zero area.

Many authors would tell you this is <em>not a triangle</em>. (Others will tell you it is a triangle—a degenerate case.)

_____

These numbers are an arithmetic sequence. The ratio of lengths is 1 : 2 : 3. The only arithmetic sequence of side lengths that makes a right triangle are those in the ratio 3 : 4 : 5.

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HELP 20 POINTS!
Butoxors [25]
For the first blank where it asks for the perimeter, the perimeter is all the outside sides of a shape added up. So, 6 + 1 + 2 + 4 + 4 + 5 = 22.

For the second blank, you just multiply the entire perimeter by 5, so, 22 times 5=110.

For the third blank, it is basically the same as the previous question. The answer is 5.

For the fourth blank, it is the same perimeter as the first blank, but instead of centimeters, it is in k. So, 22k.

Hope this helped! :)
4 0
3 years ago
Read 2 more answers
Three numbers have a mean of 64. When a fourth number is included the mean is doubled. What is the fourth number?
astra-53 [7]
The mean is calculated by adding up all of the given numbers and dividing by the number of numbers.

Lets, for ease of understanding, say that the first three number were 64...

Mean=(64+64+64)/3=192/3=64

Now, lets solve for the mean where 'x' is the unknown fourth number and 128 is the mean. (since, the answer said that when the fourth number was added the mean, 64, was doubled '64*2=128')

128=(64+64+64+x)/4
128=(192+x)/4
Multiply both sides by 4
512=192+x
subtract 192 from both sides
320=x

The missing number is 320..


Now lets double check our work.

Mean=(64+64+64+320)/4=512/4=128

Answer=320
8 0
3 years ago
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The vertex of ∠WON is? what one is the vertex? A) W. B) O. C) N
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We are given the angle WON. The letters W, O and N represents points included in the angle. One of these points is the vertex of the angle. It is the point which an angle is measured. For this case, the vertex is point O. Therefore, the correct answer is option B.
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3 years ago
What is the percent of decrease from 10 to 3?<br>Write your answer using a percent sign (%).<br>​
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Answer:

Convert the decimal to a percentage by multiplying the decimal by  

100 .

Step-by-step explanation:

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3 years ago
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Scrat [10]

Answer:

Sorry if this doesn't help:

Step-by-step explanation:

1, Order the data from least to greatest.

2, Find the median.

3, Calculate the median of both the lower and upper half of the data.

4, The IQR is the difference between the upper and lower medians.

Good luck!

3 0
3 years ago
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