1.) An elephant's heart beats 75 times in 3 minutes. It will beat 325 times in how many minutes?
I

13 minutes

Step-by-step explanation: common sence every minute the heart beats 25 times so 25 times 3 equals 75 so if that s true then 25 times 13 equals 325 ;)

Step-by-step explanation:

It is 12.99 - 13 min. because 325 divided by 75

equals 4.33 and so on. If you times 4.33 by 3

you get 12.99, if your teacher said to round it

then do 13 Min. Hope this helps! <3

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.