Answer:
Function is decreasing on (-8,infinity)
Step-by-step explanation:
The given function is 
The first derivative is given by
For the function to be decreasing, we have
Divide both sides by -2. Since, we are dividing by a negative number hence, the inequality sign will change.
Subtract 8 to both sides
Therefore, the function is decreasing on (-8,infinity)
First option is correct.
Answer:
3)
Step-by-step explanation:
I am one of the maths and they are called BODMAS
Answer:
i think it's c
Step-by-step explanation:
ok so i think i get it, volume is width*length*depth so dividing the known volume by its width gives you the length*depth.
after that set up a porportion:
(L*W)of known/92 = x/46
solve for x gives you the length*depth of the unknown volume, times that but the 46 width.. i got 60
i think that's right but im not a teacher or anything
Answer:
120 cans
Step-by-step explanation:
1 carton = 24 cans
therefore, 5 * 24 = 120
Answer: 450 Minutes
Step-by step explanation:
135-x)/5 = hours connie runs
x/7 = hours Bonnie runs
(135-x)/5 + x/7 = 24
135-x + 5x/7 = 120
945-7x+5x = 840
-2x = -105
x = 52.5 miles = distance of Bonnie
52.5 miles / 7 m/hr = 7.5 hours = 450 minutes
