Question

Math solve pls no links

Answer 1

Answer:

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

Answer 2

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