Hope that helps!
<em>ps. I attached a sheet of trigonometry identities</em>
The answer to this question is 5.49
This corresponds to a sinusoidal graph, we have:
Radius= 20 feet, that corresponds to the amplitud (A)
One revolution takes 24 seconds, that corresponds to the period
Min= 3 feet
k=360/24=15
D= bottom distance+ amplitud=3+20=23 feet
Then, let x be the time, in seconds:
a) To determine Reid's height after 1 minute= 60 seconds, substitute x=60
b) To determine when Reid's height will first reach 18 feet, we have to substitute y=18 feet, and isolate x:
6*3
9*2
18*1
Cant you look this stuff up?
Answer:
13525
Step-by-step explanation:
Given the equation :
y=25,450(0.81)^t
where (t) is the number of years since the truck was new ;
The value of y when t = 3 ;
Replace, t with 3 in the equation. And simplify
y=25,450(0.81)^3
Y = 25450 * 0.531441
y = 13525.17345
Worth after 3 years = 13525