Hence the maximum possible area is 2500 square meteres
Given the area of the rectangular garden expressed as;
The maximum area occurs when dA(x)/dx = 0
Next is to get the maximum area possible. Substitute x = 50 into the original function as shown;
Hence the maximum possible area is 2500 square meters
Answer:
x+-15?
Step-by-step explanation:
Answer:
PR = 7.99 cm (2 dp)
Step-by-step explanation:
Pythagoras' Theorem: a² + b² = c²
(where a and b are the legs, and c is the hypotenuse, of a right triangle)
From inspection of the triangle:
- a = PR
- b = PQ = 12.1 cm
- c = RQ = 14.5 cm
Substituting the given values into the formula;:
⇒ a² + b² = c²
⇒ PR² + 12.1² = 14.5²
⇒ PR² + 146.41 = 210.25
⇒ PR² = 210.25 - 146.41
⇒ PR² = 63.84
⇒ PR = ±√(63.84)
⇒ PR = ±7.99 (2 dp)
As distance is positive, PR = 7.99 cm (2 dp) only
Change the 12 m into 1200 cm. Then do a cross multiply.
