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solniwko [45]
3 years ago
5

Find x in this equation

Mathematics
1 answer:
Lady_Fox [76]3 years ago
6 0

Answer:


Step-by-step explanation:

9.

Sum of angles in triangle:

90 + 3x + 11 + 25 = 180

Add like terms:

126 + 3x = 180

Subtract 126 on both sides:

3x = 54

Divide:

x = 18


11.

Supplementary angles:

45 + 3x = 180

Subtract 45:

3x = 135

Divide 3:

x = 45


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3 years ago
How can you write (x-3)(x+4)-18 as a product of two binomials? Please show work please help
ANEK [815]

Answer:

OPTION C: (x - 5)(x + 6)

Step-by-step explanation:

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3 years ago
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4 years ago
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