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Illusion [34]
3 years ago
9

5 + 7n=-23 A) (5) B) (-4 C) (-5) D) (11)

Mathematics
1 answer:
erica [24]3 years ago
6 0

Answer:

B) -4

Step-by-step explanation:

We start off by subtracting 5 from both sides, giving us

7n=-28

Next, we divide both sides by seven.

\frac{7n}{7} =\frac{-28}{7}

Which brings us to

n=-4

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\bf \measuredangle x = cos^{-1}(0)\implies \measuredangle x = &#10;\begin{cases}&#10;\frac{\pi }{2}\\\\&#10;\frac{3\pi }{2}&#10;\end{cases}&#10;\\\\\\&#10;\measuredangle x=sin^{-1}(1)\implies \measuredangle x=\frac{\pi }{2}

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