Answer:
It will take 5 hours until it reaches its maximum concentration.
Step-by-step explanation:
The maximum concentration will happen in t hours. t is found when

In this problem

Applying the quotient derivative formula



A fraction is equal to zero when the numerator is 0. So





We use only positive value.
It will take 5 hours until it reaches its maximum concentration.
Answer:
x = 54
Step-by-step explanation:
x/3 = x-36
x= 3x-36.3
2x= 36.3
x = 18.3
x = 54
Answer:

Step-by-step explanation:

Answer:
6
chaperones will be needed.
Step-by-step explanation:
1 to 25 students require (at least) 2 chaperones.
26 to 50 students require (at least) 4 chaperones.
51 to 75 students require (at least) 6 chaperones.
This is an example of use of the ceiling function.
The ceiling of a value
x
(sometimes written as
⌈
x
⌉
) is defined as the smallest integer greater than or equal to
x
.
In the given example we are asked for
XXX
2
×
⌈
53
25
⌉
XXXXXXXXX
which is
6
Answer:
A
Step-by-step explanation:
Since x is along the entire parallelogram we will use cosine to figure out it's length.
First we do cos(40) and get cos(40)=.7660
This .7660 is equal to
or 
So we do .7660*4 and get 3.064 in for x
A is the only option with x=3.06 so it is the correct answer