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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What is the length of segment AB

melomori [17]

Answer:

4/3

Step-by-step explanation:

7 0

3 years ago

How many different committees can be formed from 99 teachers and 3434 students if the committee consists of 33 teachers and 22

xenn [34]

There are 47,124 different committees you can select.

Explanation:
The number of combinations of 9 teachers taken 3 at a time is given by
 $_9C_3=\frac{9!}{3!6!}=84$ 

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 $_{34}C_2=\frac{34!}{2!32!}=561$ 

Together this makes 84*561 = 47124 combinations.

5 0

4 years ago

Read 2 more answers

HELP PLEASE!!What method can you use to find the area of the composite figure. Check ALL that apply.

GenaCL600 [577]

Answer:

Step-by-step explanation:

The reason we can use this method is because we are given a composite figure with a house shape with one triangle on top. We can use the guidance of the dotted lines to make out that a rectangle can be used to find the figure. We can see that apart from the figure, there are two congruent triangles. To find the area we would do -

First find the missing height of the smaller triangles. We would use the pythagorean theorem to find that the missing height is√5

We could do 8(4) = 32 to find the area of the rectangle.

Then, we could do 2√5/2 to find one missing triangle. We could then add the triangles to find the measures of the combined triangles as 2√5. Then, we could do 32 - 2√5 to find the area as 27.5.

Hope this helps :)

8 0

4 years ago

− 0.25(−8+12) PLS HELP I HAVE A TESTTTT

Semmy [17]

Answer: -1

Step-by-step explanation:

− 0.25(−8+12) = -0.25 x 4 =-1

3 0

3 years ago

MrMuchimi

Answer: