Find the reciprocal of each expression. Write your answers with positive exponents

E1.     1/x^5

E2. not totally sure how to use positive exponents here

E3.    x^4/y^2

E4.    x^2/2

Step-by-step explanation:

remember if there is a negative exponent in the numerator, moving it to the denominator makes it positive. vice versa for the denominator to numerator

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.