Question

Answer this question pls​

Answer 1

Step-by-step explanation:

( 8^-1 -9^-1)^-1 ÷ (4^-1 - 9^-1)^-1

= {( 1 )/( 8^-1 -9^-1)} ÷ {( 1 )/(4^-1 - 9^-1)}

= We can write to ( 8^-1 -9^-1) as 1/8 -1/9 and to (4^-1 - 9^-1) as 1/4 - 1/9

So,

( 8^-1 -9^-1) = 1/8 -1/9=( 1/72 )

(4^-1 - 9^-1) = 1/4 - 1/9 = ( 5/36 )

= {(1)/1/72)÷(1)/5/36)}

= {(1)/(1)/1/72)÷(1)/(1)/5/36)}

Now,

= ( 72/1) ÷ ( 36/5)

= ( 72/1) ×( 5/36)

= 10 Answer

Answer 2

Answer:

answer -10

Step-by-step explanation:

my answer is right