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kkurt [141]
3 years ago
15

What is equivalent expression 1/x3=? A. (-x)3 B. X 1/3 C. X-3

Mathematics
1 answer:
frosja888 [35]3 years ago
3 0

Answer:

C) x^{-3}

Step-by-step explanation:

x^{-3}\\=\frac{1}{x^3}

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Let A = { all odd numbers) and B = {1,3,5,7). Is B a subset of A?
Alchen [17]

Answer:

Step-by-step explanation:

Yes

{1,3,5,7} contains the first 4 odd numbers.

{1,2,3,5,7} would not be a subset.

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Point Q sry if wrong

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Alex73 [517]

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2 years ago
3x + y - z= -6<br> 2x - y + 2z = 8<br> 4x + y - 3z = -21
Flauer [41]

Answer:

x=-1

y=4

z=7

Step-by-step explanation:

3x + y - z= -6(1)

2x - y + 2z = 8(2)

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(2)+(3): 6x-z=-13(5)

(4)+(5): 11x=-11

x=-1

so z=2-5x=7

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8 0
3 years ago
In triangle ABC , m angle A=(3x)^ , m angle B=(3x+10)^ , and m angle C=(4x-30)^ Find m m angle C
sweet-ann [11.9K]

Answer:

B

Step-by-step explanation:

Interior angles of a triangle = 180°

3x°+3x+10°+4x-30°=180°

10x°-20°=180°

10x°=180°+20°

10x°= 200°

10x°/10=200°/10

x°=20°

6 0
3 years ago
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