Simplify the expression use only positive exponents: 1. 8x^2y^-2/x^-2y * (4xy^2)^-1/x^2y

2. 5^-4*5^-5/5^-6

PLZ HELP

it should be a and d. lmk if i'm wrong xd

i think the answer is true

step-by-step explanation:

answer: can you give the

step-by-step explanation:

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm