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Dvinal [7]
3 years ago
7

Need help anyone help plz im struggling

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0

Answer:

Step-by-step explanation:

1

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In ΔBCD, \overline{BD}
Alex787 [66]

Answer:

30degrees

Step-by-step explanation:

Given

Exterior angle m<CDE = 7x - 19 degrees

interior angles are

m<BCD = 2x - 1

m<DBC = x+10

Since the sum of the interior angles is equal to the exterior, hence;

2x - 1 + x+10 = 7x - 19

3x + 9 = 7x - 19

3x - 7x = -19 - 9

-4x = -28

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Get m<CDE

m<CDE = 7x - 19

m<CDE = 7(7) - 19

m<CDE = 49 - 19

m<CDE = 30degrees

4 0
2 years ago
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The answer is 4x(x+2).
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3 years ago
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SCORPION-xisa [38]

Answer:

<u>0 is the answer </u>

Step-by-step explanation:

4 0
3 years ago
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Find the solution to the system 9x−4y=−13 and 9x−2y=−20
BaLLatris [955]

Answer:

x = -3, y = -3.5.  As an ordered pair it is (-3, -3.5).

Step-by-step explanation:

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9x − 2y =  -20

Subtract:-

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y = -3.5.

Substitute for y in the first equation:

9x - 4(-3.5) = -13

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3 years ago
A coat that usually cost $123 is marked 1/3 off. what is the sale price of the coat
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Well if it is marked 1/3 off, then you're actually paying 2/3 of it. 2/3 of 123. " of " means multiply 2/3 * 123 = 246/3 = 82 So it now costs $ 82
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3 years ago
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