Answer:
the rate of change is -4
Step-by-step explanation:
it's set up as y=mx+b
m is the rate of change
b is the y-intercept
m= -4
b=9
Answer:
Step-by-step explanation:
If 
exist, then we have that 
.
Therefore, in the case that 
, if we multiply both
terms in the equation by , then we have
and so the equation tells us that
.
I think the right one is 3.75
There will be 4 water stations.
Why?
3/4 = .75 as a decimal
Personally, I believe that it’s easier to use decimals, I can explain the way in fractions in the comments if you’d like, just ask.
Anyway, .75 • 4= 3
or 3 / .75 = 4 (division is easier with bigger numbers)
so, there will be 4 water stations, given that the one race is 3 miles long.
If this explanation seems unclear, I’d be happy to explain. Feel free to ask in the comments!! I’m happy to help.
Hope this helps!
(If you find this answer helpful, please consider marking me brainliest, Thanks!)
Answer:
Step-by-step explanation:
The volume V of the fountain is equal to:
V = L*W*h
Where L is the lenght of the fountain, W is the width of the fountain and h is the high of the fountain
We already know that h is equal to x. On the other hand, if we cut a square with side of length x, L and W are calculated as:
L = 18 - 2x
W = 12 - 2x
So, replacing L, W and h on the equation of the volume, we get:
V = (18-2x)*(12-2x)*x
Finally, simplifying the function we get:
