A varies inversely as the square of b. If a is 1 when b is 4, find a when b is 4.
with solution

4

a=k/b squared when a=1,b=4 k=16

When b=4 a=1

hello 0xxbadwolfxx0,

2.6 x 10^9 is 2,600,000,000.

1.3 x 10^2 is 130

multiplying 130 and 2,600,000,000 would simply give you 200,000,000,000.

therefore, the answer would be d. 2.0 × 10^11.

i hope i ! warm regards, mae.