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arsen [322]
3 years ago
12

In the equation below, what is the value of b? 4(x-2)^2-7=ax^2+bx+c

Mathematics
1 answer:
Finger [1]3 years ago
4 0
We have 4(x^2 - 2x + 4) - 7 = 4x^2 - 8x + 16 - 7 = 4x^2 - 8x + 9;
So, 4x^2 - 8x + 9 = <span>ax^2+bx+c ;
The value of b is -8.</span>
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3 years ago
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If lines L and M are parallel, find x, y, and z. Explain your reasoning.
Katyanochek1 [597]

Answer:

The answer to your question is:

                                                     x = 43°, y = 137° and z= 43°

Step-by-step explanation:

-If lines L and M are parallel, that means that 43° and z are corresponding angles and they measure the same.

                                           z = 43°

- y and 43° are supplementary angles , so

                                          y + 43 = 180

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                                          y = 137°

- x and z are vertical angles, so they measure the same

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8 0
3 years ago
Which statement is true
AlladinOne [14]
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3 years ago
Y=6x 2x+3y=20 solving equation using substitution
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Answer:

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Step-by-step explanation:

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Help me with this please!
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