Question

1

Answer 1

-2^-2 = -1/4

Answer 2

steps are
1) get rid of the negative exponent
\[-2^{-2}=-\frac{1}{2^2}\]

Answer 3

2) square to get
\[-\frac{1}{4}\]

Answer 4

i assume the second one is
\[\frac{3}{x^{-1}y^{-2}}\]

Answer 5

since both variables are raised to a negative power, take the reciprocal. which since they are in the denominator of the fraction means to bring them to the numerator with positive exponents

Answer 6

so there is really only one step here
\[\frac{3}{x^{-1}y^{-2}}=3xy^2\]