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2 years ago

I asked more than 10 times Still no steps to a solution

Mathematics

1 answer:

Alisiya [41]2 years ago

8 0

Answer:

C 200

Step-by-step explanation:

It does not appear to be LINEAR so

Start with :

pulse rate = y = 73e^kx

sub in x = .7 when y = 155

155 = 73 e^(.7 * k)

ln ( 155/73) = .7k

.75296567 = .7k

k = 1.07567

for x = 0.9 :

pulse rate = y = 73 e^(1.07567 * .9) = ~ 192 so I expect answer is 200

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