bearing in mind, "t" is in years, 6months is just 1/2 year
solve for "r", you'd get a decimal amount, multiply times 100, to get the percentage form
Answer:
a>-2
Step-by-step explanation:
B
Because 2 sqrt5 is = to sqrt 20.
4^2=16, 6^2=36
He would need to exercise for approximately 14 minutes to get to 120 bpm