The pulse rates of randomly selected adult males vary from a low of bpm to a high of bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want % confidence that the sample mean is within bpm of the population mean. Complete parts (a) through (c) below.

answer: i'm not sure

step-by-step explanation:

what graph

step-by-step explanation:

a

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.