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adoni [48]
2 years ago
13

What is the area of the polygon below in square units? 4 cm 12 cm 18 cm

Mathematics
1 answer:
stepan [7]2 years ago
8 0
There is no polygon there
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Ling wants to determine the average distance she travels each day in her car. She records the odometer reading, which measures t
erica [24]

Answer:

Mean = 10724.29\ mi

Step-by-step explanation:

Given

n = 7 --- days

See attachment for odometer readings

Required

The mean of the distance

Mean is calculated as:

Mean = \frac{\sum x}{n}

So, we have:

Mean = \frac{10150 + 10211 + 10424 + 10769 + 10884 + 11155 + 11477}{7}

Mean = \frac{75070}{7}

Mean = 10724.2857143

Approximate

Mean = 10724.29\ mi

5 0
2 years ago
When placed end to end, three red rods are 2 cm longer than than 2 blue rods. Three blue rods are 2 cm longer than four red rods
Oxana [17]

Answer:

Red = 10 cm, blue = 14 cm

Step-by-step explanation:

<em>Let the length of each red rod be </em><em>r </em><em>and each blue rod be </em><em>b</em>

<u>Then we have:</u>

  • 3r - 2b = 2
  • 3b - 4r = 2

<u>Multiply the first equation by 3 and the second one by 2:</u>

  • 9r - 6b = 6
  • 6b - 8r = 4

<u>Add the equations to eliminate one of variables:</u>

  • 9r - 8r = 6 + 4
  • r = 10 cm

<u>Find the value of b:</u>

  • 3*10 -2b = 2
  • 30 - 2 = 2b
  • 2b = 28
  • b = 14 cm

5 0
3 years ago
Which number is an irrational number
mixer [17]
The square root of 11 since it can’t be solved repeating the same every time like the others! Hope this helps ☺️
7 0
3 years ago
Read 2 more answers
Rachel and her friends are making necklaces out of beads and straws. They plan to use 12 beads and 5 straws for each necklace. T
bagirrra123 [75]

Answer:

225 necklaces.

Step-by-step explanation:

Assuming that they have the necessary amount of straws to match the beads then we can use the following simple equation to solve this problem.

t = b/12  ... where t is the total amount of necklaces and b is the number of beads you have

t = 2700 / 12

225 necklaces.

For 225 necklaces you would also need 1125 straws since each necklace requires 5 straws to be fully made. Therefore if you have this amount you should not run into any problems.

3 0
3 years ago
Kate sold a sailboat at a loss of 20%. If the selling price was $64, what was the original cost?
lapo4ka [179]

So she lost 20% of the original selling price.

$64 is 80% of the original price.

64/80=0.8

0.8·100=80 dollars. HOPE THIS HELPS!!!

8 0
2 years ago
Read 2 more answers
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