Joe is 21 years old and wants to start a workout program. He talked to his doctor first to get clearance to begin. His program consist of phases to increase his Fitness level at a good pace. Phase 1 Joe wants to work out at 65% of his max heart-rate Phase 2 Joe wants to work out at 75% Phase 3 Joe wants to work out at 80% 1. What is Joe's max heart rate? 2. What is Joe's heart rate goal in beats at each phase 1 2 3

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Step-by-step explanation:

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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.