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Alex777 [14]
3 years ago
10

The average heart pumps about 80ml of Blood each contraction. if your heart rate was 70 beats per minute, calculate the volume o

f Blood your heart pumps in one minute when you are resting. show your calculation.
at this rate how much blood would your heart pump in one hour? show your calculation.
Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
5 0
The heart beat rate is 70beats/minute with 80ml of blood pumped every beat. Then, the <span>volume of blood your heart pumps in one minute would be:

volume of blood per minute= volume per beat * beat per minute
</span>volume of blood per minute= 80ml/beat * 70beat/minute= 560ml/ minute<span>

</span>volume of blood per hour would be: 560ml/minute * 60 minute/hour= 33.600 ml/hour
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We have been given some examples of functions and we are asked to classify which of the given functions are linear and exponential.

Since we know that values of a linear function changes at a constant rate, while rate of change of an exponential function is always proportional to the value of function.

Let us see our given function choices one by one.

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We can see from our function that rate of change for this function is constant as every year same number of cars cross the Golden Gate Bridge, therefore, our function represented by first option is a linear function.

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3. The number of visitors to the Eiffel Tower in Paris increases by 1.5% each year.  

We can see from this function that rate of change is not constant as every next year the number of visitors is 1.5% more than last year, therefore, the function represented in 3rd option is exponential function.

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3 years ago
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a line is perpendicular to y=-2x+5 and intersects the point (-4,2). what is the equation of this perpendicular line?
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