What do you need help with
The total area of the blades is the area of a triangle multiplied by 4.
We have then:

Where,
b: base of the blades
h: height of the blades
Substituting values we have:

Doing the calculation we have that the area of the blades is given by:

Answer:
The total area of the blades is:

Answer:
The slope is -2 because, for every value past on the x-coordinate, the line goes 2 values down.
Step-by-step explanation:
I hope that this helps! :)
Step-by-step explanation:
p<5 that's the answer for the question
I think you are referring to the (square root of b^2 - 4ac) in the quadratic formula.
When b^2 - 4ac is less than zero, the solutions to the quadratic equation will be complex (iamginary).