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Rzqust [24]
3 years ago
10

Math solve pls no links

Mathematics
2 answers:
Margaret [11]3 years ago
4 0

Answer:

1) {b}^{ - 4}  \div  {b}^{9}  \\  =  {b}^{ - 4}  \times  {b}^{ - 9}  =  {b}^{ - 13} =1/b^13\\ 2)  \frac{ {4}^{ 5}  \times  {4}^{ - 8} }{ { {4}^{3} }^{2} }  \\  =  \frac{ {4}^{ - 3} }{ {4}^{6} }  \\  =  {4}^{ - 3}  \times  {4}^{ - 6}  \\  =  {4}^{ - 9}  \\ hank \: you

Gnesinka [82]3 years ago
4 0

Question 10.

  • \dfrac{b {}^{ - 4} }{b {}^{9} }

  • \dfrac{1}{b {}^{9}  \times b {}^{4} }

  • \dfrac{1}{ {b}^{13} }

correct option is A

Question 20.

  • \dfrac{4 {}^{5} (4 {}^{ - 8}) }{(4 {}^{3} ) {}^{2} }  {}^{}

  • \dfrac{(4 ){}^{5 - 8} }{ {4}^{6} }

  • 4 {}^{ - 3}  \times 4 {}^{ - 6}

  • 4 {}^{ - 9}

therefore, D is the correct option

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