An incoming mba student took placement exams in economics and mathematics. in economics, she scored 8080 and in math 9090. the overall results on the economics exam had a mean of 7373 and a standard deviation of 66, while the mean math score was 6767, with a standard deviation of 1313. on which exam did she do better compared with the other students? since she scored nothing standard deviations ▼ above below the mean in economics and nothing standard deviations ▼ below above the mean in mathematics, she did better on the ▼ economics mathematics exam.

idk sry

step-by-step explanation:

c is the correct answer

step-by-step explanation:

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.