Question

simplify:( 3^-1 x 5^2/ 3^2 x 5^-4)^1/3 x (3^-1x5^-1/ 3^3x5^-5) ^-1/2

Answer 1

3 is the answer
Solve the answer by applying Law of indices as I did in the below attachment.

Answer 2

Answer:

Step-by-step explanation:Area of cross section of river= 2 x 45 = 90 m²

so, water flowing into the sea= area of cross section x rate of flowing water

= 90 x 3000

= 270000 m³

there water flowing per minute= 270000 / 60 = 4500 m³