Sarah bikes 4/5 km in 2 min. what is the unit rate and what does it mean?

The unit rate is km per minute. It means sarah bikes km in 1 minute or the speed of sarah is km per minute.

Step-by-step explanation:

It is given that Sarah bikes km in 2 min. It means Sarah covers km in 2 min.

The units rate is defined as

Therefore the unit rate is km per minute. It means sarah bikes km in 1 minute or the speed of sarah is km per minute.

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a

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.