Answer/Step-by-step explanation:
An equation that describes the relationship can be written as
.
Using the two sets of coordinates, (2, 140) and (4, 280), calculate the slope (m) as shown below:

Substitute m = 70 into 
The equation would be:

This equation can be interpreted as follows:
The heart's resting rate is 70 beats each minute.
Answer: D) 10
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Explanation:
I'm assuming points M and N are midpoints of segments FD and FE respectively. If that's the case, then segment DE is twice as long compared to segment MN. We consider MN to be a midsegment.
So,
DE = 2*(MN)
3x-2 = 2*(x+4)
3x-2 = 2x+8
3x-2x = 8+2
x = 10
Answer:

Step-by-step explanation:
The formula of an area of a elipse:

We have:

Substitute:

The answer should be t=-24
Answer:
4 horses maybe
Step-by-step explanation:
you might subtract the 4 horses from the left to get 8 horses in the right but that's equal to 2 elephants so divide 8 by 2 to get the 1 elephant so 4 maybe