Answer:
See Below
Step-by-step explanation:
The question is asking:
After how many years, 20,000 will become 500,000 at an annual interest of 11.5%?
So, we need compound growth formula shown below to solve this:

F is future value
P is present amount
r is rate of interest
t is the time of year
Given,
F = 500,000
P = 20,000
r = 11.5% = 11.5/100 = 0.115
t is what we want to find

Now, we take natural log of both sides and solve for t:

Its is going to take about 29.57 years, rounding, 30 years
Check the picture below.
so, notice, the composite is just a 4x6 rectangle, and a triangle whose base is 6 and altitude is 2. So, we can simply get the area of each figure and sum them up.
Answer:
Yes
Step-by-step explanation:
To be able to make a right triangle, it needs to follow the Pythagorean theorem
Thus, 16^2+30^2=34^2 needs to be true
256+900=1156
and sqrt1156=34
so yes
I am going to assume this is for calculus. You would need to find the derivative of each because derivative represents rate of change.
The derivates are:
y'=1
y'=3
y'=4
y'=2
Therefore the answer it the third choice because it has the largest derivative<span />