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alexira [117]
4 years ago
12

Por Favor! Alguém me ajuda.

Mathematics
1 answer:
Nutka1998 [239]4 years ago
8 0

Answer:

The answer is A.

Step-by-step explanation:

You have to apply :

{(a  -  b)}^{2} ⇒ {a}^{2}   -  2ab +  {b}^{2}

So for this question :

{(3a - b)}^{2}

=  {(3a)}^{2}  - 2(3a)(b) +  {(b)}^{2}

= 9 {a}^{2}  - 6ab +  {b}^{2}

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aalyn [17]

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4 years ago
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Answer:

17.

Step-by-step explanation:

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Hope this helps!

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3 years ago
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Given a point on a line and the equation of a parallel or perpendicular line, write the equation of the line in point-slope form
Arlecino [84]

Answer: y - 5 = 0(x - 1)

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

Explanation:

Recall that point slope form in general is written as such

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y - 5 = 0(x - 1)

which is the final answer

note: the equation in bold can be rearranged and simplified to get y = 5; however your teacher seems to want the answer in point-slope form, so we leave it as such.

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