A single tree produces about 2.6 × 10² pounds of oxygen each year. The Amazon rainforest has about 3.9×1011 trees. About how many pounds of oxygen are produced in the Amazon rainforest per day?

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pounds per day

나는 그녀의 얼굴을 알고 있지만 그녀의 이름을 모른다

Step-by-step explanation:

전정국 씨가 말했다.

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.