the heart of a newborn baby can beat up to 130 times per minute. At this rate, how many seconds would it take to beat 26 times?
1 answer:
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Answer:
D
Step-by-step explanation:
The radius r is the distance from the centre to a point on the circle.
Calculate r using the distance formula
r = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 5, - 12)
r =
=
=
=
= 13 → D