The heart rate reserve is equal to the difference between maximum heart rate and resting heart rate. Maximum heart rate is usually calculated by:
Hmax = 220 - age
Hmax = 220 - 40 = 180
HRR = Hmax - Hrest
HRR = 180 - 75
= 105
The answer is B
The Greek goddess of love is Aphrodite and the Roman goddess of love is Venus, which is where the planet Venus gets it’s name from.
The stressor for the Dad and mom is Increase in financial obligations due to birth of the child.
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What is a Stressor?</h3>
This is defined as a situation which generates stress in individuals and are of various types.
The children also have stressors such as starting school and being exposed to a new environment
Read more about Stressor here brainly.com/question/11819849
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In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.