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MrMuchimi
3 years ago
10

PLEASE HELP MATHS PROBLEM!!!

Mathematics
2 answers:
UkoKoshka [18]3 years ago
5 0

Step-by-step explanation:

\frac{5}{1 -  \sqrt{7} }  \\  multiply \: both \: by \: (1 +  \sqrt{7) }  \\  \frac{5(1 +  \sqrt{7)} }{(1 -  \sqrt{7})(1 +  \sqrt{7)}  }  \\ =   \frac{5(1 +  \sqrt{7)}}{1 -  { \sqrt{7} }^{2} }   \\  =  \frac{5(1 +  \sqrt{7)} }{1 - 7}  \\  =  \frac{5(1 +  \sqrt{7)} }{ - 6}  \\  =  \frac { - 5}{ \:  6} \frac{(1 +  \sqrt{7}) }{}

adoni [48]3 years ago
4 0

Just ask google ot will halp you better but i think its -48

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Arisa [49]
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7 0
3 years ago
Solve the equation x2 + 64 = 100
anyanavicka [17]

Answer:

x = ± 6

Step-by-step explanation:

Given

x² + 64 = 100 ( subtract 64 from both sides )

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x = ± \sqrt{36} = ± 6

7 0
3 years ago
Percent that equals 7/8
Galina-37 [17]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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What is the domain and range pls help ASAP thank you
Pachacha [2.7K]
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5 0
3 years ago
Solve for x.<br><br> 2/3(x−7)=−2
zaharov [31]
2/3x - 14/3 = -2
3(2/3x - 14/3) = -2(3)
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hope this helps :)



5 0
3 years ago
Read 2 more answers
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