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Helen [10]
3 years ago
5

What Is the sum of the measures in degrees of the interior angles of a 30-gon

Mathematics
1 answer:
Mazyrski [523]3 years ago
7 0
The answer is 5040 degrees.
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-4x – 2y=-12<br> 4x + 8y=-24<br> Solve each system by elimination
kirza4 [7]

Answer:

x = 6 and y = - 6

Step-by-step explanation:

- 4 x - 2 y = -12.......equ No 1

 4 x +  8y = - 24.......equ No 2

Adding equ No 1 and equ No 2

6 y = - 36

∴ y = - 6

substitute y = - 6 in equ No 2

4 x + 8 y = -24

4 x + 8 ×( -6) = - 24

4 x - 48 = -24

4 x = -24 + 48

4 x = 24

∴ x = 6

x = 6 and y = - 6

7 0
3 years ago
What is the estimate difference between 2.97 1 2/11​
zheka24 [161]

Answer:

2

Step-by-step explanation:

Estimate 1 2/11 to 1.

Estimate 2.97 to 3.

3 - 1 = 2

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3 years ago
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Ugo [173]
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3 years ago
Write the number in expanded form: 3.15 x 10^3<br> please explain step by step
vivado [14]

Answer:

3150.0

Step-by-step explanation:

You move the decimal point 3 places to the right because the exponent is a positive 3.

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W+16&lt;4 what is the answer
Hatshy [7]
W<-14
Hope this helps
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