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BARSIC [14]
3 years ago
11

Find the error in the solution, and then solve correctly 9x+18+3x=1 9x+18=-2 9x=20 x=-20/9

Mathematics
1 answer:
PIT_PIT [208]3 years ago
8 0
9x+18+3x=1
The second should be:
12x + 18=1, as you cannot combine -3x and 1 to get -2
To continue:
12x = -17
x = -17/12
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Binomial Coefficients (30pts) 1. Write (a + b)^2 as a polynomial in standard form. Show work (FOIL/distributive property).
Darina [25.2K]

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a^2 + 2ab + b^2

Step-by-step explanation:

Given

(a + b)^2

Required

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(a + b)^2

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(a + b)(a + b)

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fredd [130]
<h3>Answer: Choice B</h3>

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======================================================

Work Shown:

(angle 1) + 33 = 180

angle 1 = 180-33

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---------------

Focus on the left most triangle that has angles 33 and 47 as interior angles. The missing angle is 180-33-47 = 100 degrees

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We have enough info to conclude the answer must be choice B.

---------------

Let's keep going to find angle 3

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5 0
3 years ago
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