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harina [27]
3 years ago
11

Find the area of this irregular polygon.

Mathematics
2 answers:
docker41 [41]3 years ago
3 0

Answer:

970 m²

Step-by-step explanation:

square area= 20×20=400m²

Triangle area=38×30/2=1140/2=570m²

total area=400m²+570m²=970m²

rewona [7]3 years ago
3 0

Answer:

Step-by-step explanation:

OK 20 by 20 is 40 so then 38 by 30 is 1140 then divide by 2 which is 570 then add 400 so the answer is 970 (im pretty sure this is wrong)

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A

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Step-by-step explanation:

(x+8)^2 -x^2 = 12^2

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Double check:

\sqrt{12^2 + 5^2} = (5+8)\\\sqrt{12^2 + 5^2} = 13\\13 = 13

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Step-by-step explanation:

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3 years ago
Three times as many children as adults attended a concert on Saturday. An adult ticket cost $7 and a child’s ticket cost $3. The
Ierofanga [76]

For this case we propose a system of equations:

x: Let the variable representing the number of children in the concert

y: Let the variable representing the number of adults at the concert

According to the assistance we have:

x = 3y

According to the cost we have:

3x + 7y = 6000

Substituting the first in the second equation we have:

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On the other hand we have:

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The concert was 1500 people

3 0
3 years ago
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