Answer:
A.) The temperature fell in the last minute, but less than it fell in the minute before.
Step-by-step explanation:
Given that for three minutes the temperature of a feverish person has had negative first derivative and positive second derivative.
i.e. it temperature is represented by T, temperature is variable with
first derivative T' <0 and second derivative T">0
i.e. rate of change of temperature is negative or temperature is falling down in 3 minutes.
But the rate of rate of change of temperature was positive i.e. the rate of change of temperature is increasing as time increases.
So correct option would be option A
A.) The temperature fell in the last minute, but less than it fell in the minute before.
Answer:
y = 4
Step-by-step explanation:
6y + 30 = 54
subtract 30 from each side
6y = 24
divide each side by 6
y = 4
Answer:
A≈78.54m²
Step-by-step explanation:
Before we do anything, we need to find out how fast we are going in the first place.
We know we are going 1.5 miles per minute and that there are 60 minutes in an hour, so we can find our speed in mph. All we have to do is multiply 60 and 1.5.
That gives us 90 mph.
Next, the problem says that we reduce our speed by 15 mph, so you would subtract 15 from 90.
That gives us 75 mph.
The last thing the problem says is that we reduce our speed by one third, so first we need to know what one third of 75 is. We can find that by dividing 75 by 3.
That gives us 25
But we aren't finished yet! We still need to subtract 25 from 75 to get our current speed. When we do this we get our final answer of...
50 mph
If you need any further explanation, just let me know!
