Question

This is standard form (9x10 to the power of -4) to the power of 2

Answer 1

9x10 to power of -8
Good luck

Answer 2

9×10 to the power of -8

Explanation:

Cause when we add power to the power we multiply them

For example
`(2^(2) )^2` , we multiply the power so , 2×2= 4 so
`(2^(2) )^2` =
`2^(4)`=16

Same here
`((9*10)^(-4) )^2` we multiply the powers so -4×2=-8

So
`((9*10)^(-4) )^2` =
`(9*10)^(-8)` = 2.323×
`10^(-16)`