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Mila [183]
3 years ago
12

Parallelogram Property: opposite angles are congruent Solve for x

Mathematics
1 answer:
Anna11 [10]3 years ago
5 0

Answer:

Step-by-step explanation:

Equate the two opposite Angles

7x - 31 = 5x + 13                Subtract 5x from both sides

7x - 5x - 31 = 13                 Combine

2x - 31 = 13                        Add 31 to both sides

2x = 13 + 31                       Combine the right

2x = 44                             Divide by 2

x = 44/2

x = 22

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Answer:

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Step-by-step explanation:

(x+3)(x+3)

distribute the x to both three and x.

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add like terms.

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7 0
3 years ago
Which are solutions of the equation x^2- 16 = 0? Check all that apply
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Answer:

x= -4

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Step-by-step explanation:

This is a quadratic equation, and can be solved very quickly since it only has two terms, the square one and the free term.

Hence the solutions is obtained following the steps from below:

x2-16=0

Lets sum to both side 16

x2-16=0+16

x2=16

Now, lets apply square root to whole equation:

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x=|4|

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9 0
3 years ago
Which of the following expressions is equal to -3x^2-12??!!! please help him
Andreyy89

Answer:

-3 ( x+2i) (x-2i)

Step-by-step explanation:

-3x^2-12

Factor out a -3

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3 years ago
Read 2 more answers
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