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andreyandreev [35.5K]
2 years ago
9

-3n + 1 = -20 Help me please

Mathematics
2 answers:
tankabanditka [31]2 years ago
8 0

The answer ➪ n = 7

Explanation:

-3n + 1 = -20

-3n = -20 - 1

-3n = -21

n = 7

<h3>I hope I have helped <3</h3>
Sav [38]2 years ago
3 0
N=-7

n x 3 = -21+1=-20
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A 12 foot board is cut so that one piece is 5 times as long as the other. Find the length of each piece.
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Answer:

2 and 10

Step-by-step explanation:

Let x be length of the small piece and y the length of the big one.

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Since the big piece is 5 times longer than the short one.

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3 years ago
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Brian correctly use a method of completing the square to solve the equation X a 2nd plus 7X -11 equals zero Brian‘s first step w
ArbitrLikvidat [17]

Answer:

(\frac{7}{2})^{2}

Step-by-step explanation:

Brain correctly use a method of completing the square to solve the equation:

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The Next Step Would be to:

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It is this number (\frac{7}{2})^{2} that is added to both sides in the manner below:

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6 0
3 years ago
How do I solve this?
Serhud [2]

Answer:

44.94

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Use trigonometric ratios to find the unknown side.

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Please mark as Brainliest! :)

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