Answer:
5 yes or good i'm not good morning guys
Answer:
A)

B)

C)

Step-by-step explanation:
We are given the function:

A)
Given that h(1) = 20, we want to find <em>k</em>.
h(1) = 20 means that <em>h</em>(x) = 20 when <em>x</em> = 1. Substitute:

Simplify:

Anything raised to zero (except for zero) is one. Therefore:

B)
Given that h(1) = 40, we want to find 2<em>k</em> + 1.
Likewise, this means that <em>h</em>(x) = 40 when <em>x</em> = 1. Substitute:

Simplify:

We can take the natural log of both sides:

By definition, ln(e) = 1. Hence:

Therefore:

C)
Given that h(1) = 10, we want to find <em>k</em> - 3.
Again, this meas that <em>h</em>(x) = 10 when <em>x</em> = 1. Substitute:

Simplfy:

Take the natural log of both sides:

Therefore:

Therefore:

Answer:

Step-by-step explanation:
We are given that
Volume,V=250 L
Mass of salt=m=40 g
Brine containing 1 g per liter
Pumped into the tank at the rate=5 L/min
We have to find the number A(t) of grams of salt in the tank at time t.
Rate of change of salt in the tank
Rate in-Rate out
Rate in=5 L/min
Rate out=
L/min



Using the formula

A=40 and t=0


Substitute the value









Answer: A. XZ is longer than XY
Step-by-step explanation: quiz A-P-E-X