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posledela
3 years ago
5

N to the first power divided by (n - r) to the first power

Mathematics
1 answer:
Andreyy893 years ago
4 0
\dfrac{n^1}{(n-r)^1}=\dfrac{n}{n-r}
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Answer:

D. 6

Step-by-step explanation:

the similarity theorem:

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Which of the following is a true statement about the symmetry of this figure?
katovenus [111]
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Which equation is a solution to (x-3)(x+9)=27?
Shtirlitz [24]

Answer:

x = ± 3\sqrt{7} - 3

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I'm assuming you want the solutions to that equation, so here goes! (If not, please comment.)

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x^2 +   9x    -    3x    -  27

(first+ inner + outer + last)

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Combine like terms, and add 27 to both sides.

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Let's complete the square, because factoring doesn't work, and because it's good practice.

x^2 + 6x + ___ = 54 + ____

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Now we've got a perfect square factor:

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7 0
3 years ago
Contains the origin and is parallel to the line 3x-2y=12
scoray [572]
Two parallel lines have the same slope.
the slope of the given line is: -2y=-3x+12
y=3/2x -6
so the slope is 3/2
the new line passes (0,0), so the equation is simply: y= \frac{3}{2} x
6 0
3 years ago
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