Your picture has several issues.
- x is not defined. It appears to be the number of apartments rented.
- R(x) is defined two different ways. The first way, it looks like it is the revenue from a single apartment. The second way, it looks like it is the revenue from the entire apartment complex.
- The derivative is in error. It should be -20x +2000. In any event, this is not the derivative you want. You're not trying to maximize revenue; you're trying to maximize profit.
- It might be useful to write an equation for profit: P(x) = R(x) -200x = -10x² +1800x. Then when you go to maximize it, your derivative will be P'(x) = 0 = -20x +1800 ⇒ x = 90.
Your answer is correct, but the path you followed to get there has a few potholes.
These are the steps:
1. Find area of the two triangles.
2. Find area of the rectangle.
3. Add them up.
<u>Step 1: Find area of the two triangles:</u>
Formula : Area of triangle = 1/2 x base x height
Both triangles are identical.
Height = 5m
Base = 6 + 6 + 12 = 24
Area = 1/2 x 24 x 5 = 60 m²
<u>Step 2: Find the area of the rectangle:</u>
Formula : Area = Length x Width
Area = 12 x 7 = 84 m²
<u>Step 3: Find the total area:</u>
60 + 84 = 144 m²
Answer: 144 m²
Hey here is the answer to ur question...
5x^2-2xy+y^2
=>5*(-2)^2-2*-2*3+(3)^2
=>5*4+12+9
=>20+12+9
=>41
Hope this helps u....!!!
Find the LCM between the denominators.
The LCM is 36
Divide he LCM for the denominators, then multiply the result for the numerator.
You get 25/36 and you can't simplify it
125m-75m+43,875=45,450-175m
We simplify the equation to the form, which is simple to understand
125m-75m+43,875=45,450-175m
We move all terms containing m to the left and all other terms to the right.
+125m-75m+175m=+45.45-43.875
We simplify left and right side of the equation.
+225m=+1.575
We divide both sides of the equation by 225 to get m.
m=0.007
(I’m sorry if I’m wrong I tried)
