So all you need to do if find the min of the function:
f(x)=0.04x^3-4x^2-176x
f'(x)=0.12x^2-8x-176
The only zero for this is x=84.105 <---first
Plug this into f(x) to get f(84.105)=-19300 <---second
Simplify both to 1/2 because both numerators are half of their denominators. Then multiply straight across to 1/4.
I’m guessing you subtract 78-52 then divide by original which was 52.. so July is 50% warmer.
Step-by-step explanation:
From the figure it is clear that:
x+110°=180
x=180-110
x=70
For y:
the left exterior angle of line q is also70.
By the definition of alternate exterior angle:
y=70
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