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cupoosta [38]
3 years ago
13

Which of the undefined terms is used to define the term parallel lines

Mathematics
1 answer:
scoundrel [369]3 years ago
6 0
<span>x.line is the correct answer</span>
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80 is 40% of what number?
Artist 52 [7]
x-number\\\\40\%x=80\\\\40\%=\frac{40}{100}=0,4\\\\0,4x=80\ \ |:0,4\\\\x=\frac{80}{0,4}=200\\\\ 80\ is\ 40\% \ of\ 200.
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3 years ago
How to write a story context that would be represented by the ratio 1:4
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3 years ago
Solve x4 - 11x2 + 18 = 0.
lara31 [8.8K]

Answer:

x=√2, x=-√2, x= 3 and x=-3

Step-by-step explanation:

We need to solve the equation x^4 - 11x^2+18=0  

We can replace x^4 = u^2 and x^2 = u

So, the equation will become

u^2 -11u+18 = 0

Factorizing the above equation:

u^2 -9u-2u+18 =0

u(u-9)-2(u-9)=0

(u-2)(u-9)=0

u=2, u=9

As, u = x^2, Putting back the value:

x^2 =2 , x^2 =9  

taking square roots:

√x^2 =√2 ,√x^2=√9  

x=±√2 , x = ±3

so, x=√2, x=-√2, x= 3 and x=-3

6 0
2 years ago
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If your born August, 15, 2001 Then how old would you be now?
spin [16.1K]

Answer:

18 years old you would be

3 0
3 years ago
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To join the game club, you must pay $7 a month plus
ivanzaharov [21]

Answer: Total cost/month = 7 + 3x

Step-by-step explanation:

This is only the total cost per month that is why it is only 7 and 3x since the number of downloaded games is not given.

I'm not sure about my answer but I hope that it helps.

8 0
1 year ago
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