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zhenek [66]
3 years ago
11

Determine whether the given lengths form a right triangle.21 cm, 28 cm, 35 cm

Mathematics
1 answer:
lord [1]3 years ago
5 0
U have to add them all together
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Find the dimensions of the rectangle with area 289 square inches that has minimum perimeter, and then find the minimum perimeter
nalin [4]
 <span>To minimize the perimeter you should always have a square. 
sqrt(289) = 17 
The dimensions should be 17 X 17 

To see , try starting at length 1, and gradually increase the length. 
The height decreases at a faster rate than the length increases, up until you reach a square. 

Or if you want to use algebra, Say the width is 17-x 
Then the length is 289/(17-x) 

Now, this is bigger than 17+x, as shown here: 
289/(17-x) > 17+x 
289 > 289 - x^2 
which is true. 
so the perimeter would be bigger than 2 * (17- x + 17 + x) = 2 * (2 * 17) = 4 * 17 

Again, the dimensions should be a square. 17 X 17.</span>
4 0
3 years ago
If angle 4 is 52.7, what are the measures of angles 1,2, and 3? ​
shusha [124]

Answer:

  1. 127.3
  2. 52.7
  3. 127.3
  4. 52.7

Step-by-step explanation:

Since we know the angle measure of angle 4, we already know that angle 2 will have the same measure according to do the vertical angle theorem. Now to find angles 1 and 3, we can make an equation and solve for x (supplementary angles).

52.7 + x = 180

x = 127.3

Best of Luck!

6 0
2 years ago
Ana has at most 20 tokens to use for 4 games of darts and 5 games of bowling. Chris has at most 30 tokens to play 5 games of dar
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You could be able to use 5 tokens per game with equals to 20 tokens 
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2 years ago
What does 805 tens=
olga_2 [115]
8050 is the answer to "what does 805 tens="
6 0
3 years ago
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Divide. Round your answer to the nearest thousandth.<br> 2,891.3030 - 0.728=
ira [324]

Answer:

3971.570

Step-by-step explanation:

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2 years ago
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