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marshall27 [118]
3 years ago
10

A pentagon has interior angles of 104°,

Mathematics
1 answer:
Elodia [21]3 years ago
7 0

Answer:

108

Step-by-step explanation:

Interior angles in a pentagon add up to 540 degrees. So we first need to find the total sum of all the known angles. We do this by calculating 104+108+112=324.

Now we need to find the total sum of the unknown angles, and we do this buy calculating 540-324=216.

The final step is to find the size of one of the 2 remaining angles, and since we know they are equal, we just have to divide by 2. So, 216/2=108. This is our final answer.

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3 years ago
Check please :D <br> 12345678901234567890
bagirrra123 [75]

Answer: All but one was right

1. 0 (correct)

2. 34 (correct)

3. 398 (correct)

4. -350 (correct)

5. 20 (correct)

6. 200 (wrong)

7. 48 (correct)

8. -1000(correct)

9. 150 (correct)

10. -55 (correct)

Step-by-step explanation:

(2x5)x(9÷3)+4=10x3+4=30+4=34

4(25x8÷2)+3-5=4(200÷2)+3-5=4x100+3-5=400+3-5=403-5=398

-10x20-30(5)=-200-150=-350

5x10-30=50-30=20

4(50-20÷4)+20=4(50-5)+20=4x45+20=180+20=200

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20x5+70-20=100+70-20=170-20=150

-5+10x(-5)==5+-50=-55

6 0
2 years ago
Read 2 more answers
Can someone please solve this and save my life
dexar [7]

Answer:

As follows,

Step-by-step explanation:

Find the attachment.

Distance of PQ=√13

Distance of QR=√13

Distance of PR=√26

Thus, PQR is an isosceles triangle.

Distance of MN=√(16+(a-2)^2)

16=16+a^2-4a+4

a^2-4a+4=0

a=2

Distance of RS=√(9+(b+1)^2)

25=9+b^2+2b+1

b=3 or -5

Distance of RS=√(9+(-1-c)^2)

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c=-4,2

7 0
3 years ago
In the following proportion, what does y equal?
tatyana61 [14]

Answer:

C

Step-by-step explanation:

y / 4 = 39 / 30

y / 4 = 1.3

y / 4 * 4 = 1.3 * 4              (What you do to on side you also do to the other)

y = 5.2

So, your answer should be C, 5.2

5 0
3 years ago
A) If it takes 125 chinchillas to make a coat and he needs to make 10 coats, how many chinchillas must Barton have by the end of
IrinaK [193]
A) 125 * 10 = 1250 chinchillas in a year;
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b) y = x + 433, where 433 = 933 - 500;

c) 933 + 433 = 1366 chinchillas they have <span>at the end of two years;</span>
7 0
3 years ago
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