Answer:
8 years
Step-by-step explanation:
Compound interest formula

A(t) is the final amount 55000
A_0= 40000, r= 4% = 0.04, for quarterly n=4

divide both sides by 40000


Take ln on both sides

divide both sides by ln(1.01)

Divide both sides by 4
t=8.00108
So it takes 8 years
The most important thing that you have to know is that all angles in a triangle equals 180°
Answer:
Answer
Step-by-step explanation:
7. f(x)=0.2x
8. f(x)=3x+5
9. f(x)=-2x-2
I can see it goes through the point (2, 2)
b = 6 then
solved it the lazy way, graphically with desmos and a slider for b, see screenshot