A density curve is always on or above the horizontal axis. The area underneath a density curve is exactly 1. The area under a density curve and above any range of values is the relative frequency of all observations that fall in that range.
we are given
we can use PEMDAS rule
P: Parenthesis
E: Exponent
M: Multiplication
D: Division
A: Addition
S: Subtraction
Step-1: Firstly we simplify parenthesis
step-2: Solve exponent
Step-3: Divide
Step-4: Multiply
...........Answer
Multiplication!
your answer to that should be 3000h
I hope this helps!
if you have any further questions, please feel free to private message me!
Answer:
Step-by-step explanation:
b $84.00