Based on the first three (3) recordings, your average heart rate in beats per minute is approximately 84 bpm (mean). Calculating for the standard deviation of the samples, we get about 2.5 bpm. To give the possible heart rates on the fourth, we may solve for the range:
Upper Range = Mean + Standard Deviation = 84 + 2.5 = 86.5 bpm or 87 bpm
Lower Range = Mean - Standard Deviation = 84 - 2.5 = 81.5 bpm or 82 bpm
Therefore the fourth and final recording will likely to fall in the range of 82 - 87 beats per minute. You will win the fitness award!
<em>ANSWER: 82-87 beats per minute</em>
Answer:
h=8
Step-by-step explanation:
a²+b²=c²
a=A
b=12
c=13
therefore substitute
A²+(12)²=(13)²
A²=13²-12²
A²=25
A=5
h=3+A
h=3+5
h=8
Answer:
The bacterial culture loses 
of its size every 7 seconds.
Step-by-step explanation:
The relationship between the elapsed time t, in seconds, and the number of bacteria, N(t), in the petri dish is modeled by the function:
Since the growth factor is less than 1, it is a decay equation.
Observe that the time t is divided by 7.
This is the period.
We can therefore say that the bacterial culture loses of its size every 7 seconds.
Answer:
h(x)=1/4x
Step-by-step explanation:
Inverse function is when the domain and range of a function are swapped, or in other words the y and x values are swapped.
To do this you simply change x to y, and y to x in the equation
So we have the original equation
y = 4x
swap y and x
x = 4y
now solve for y by dividing by 4
y = x/4
which can also be expressed as h(x)=1/4x
Answer:
The mean of Martin's scores is 85.2
Step-by-step explanation:
In order to find the mean of a set of numbers, you will have to add up all of the numbers and divide the result by the total numbers in the set.
98 + 78 + 84 + 75 + 91 = 426
Since there are 5 numbers in total, we will do 426 divided by 5.
426 ÷ 5 = 85.2
So, the mean of Martin's scores is 85.2
