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Daniel [21]
4 years ago
8

Please help!! Tell whether the lines for the pair of equations are parallel, perpendicular, or neither.

Mathematics
2 answers:
PilotLPTM [1.2K]4 years ago
6 0
I got parallel
tell me if i get it right
VikaD [51]4 years ago
5 0
If paralell, slopes are same
perpencular, sloes mutiply to -1

neither is neither

the slopes
y=mx+b
m=slope

ax+by=c
-a/b=sloe

given

y=-2/3x+1
slope=-2/3

2x-3y=-3
slope=-2/-3=2/3

-2/3 and 2/3 aren't equal nor do they multipy to -1

neither
C
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Ilia_Sergeevich [38]

2 \times 10^{19} times more stars are there in universe compared to human eye can see

<h3><u>Solution:</u></h3>

Given that, conservative estimate of the number of stars in the universe is 6 \times 10^{22}

The average human can see about 3,000 stars at night with only their eyes

To find: Number of times more stars are there in the universe, compared to the stars a human can see

Let "x" be the number of times more stars are there in the universe, compared to the stars a human can see

Then from given statement,

\text{Stars in universe} = x \times \text{ number of stars human can see}

<em><u>Substituting given values we get,</u></em>

6 \times 10^{22} = x \times 3000\\\\x = \frac{6 \times 10^{22}}{3000}\\\\x = \frac{6 \times 10^{22}}{3 \times 10^3}\\\\x = 2 \times 10^{22-3}\\\\x = 2 \times 10^{19}

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Tell me if I'm wrong :)

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