Answer: x = 4 and x =1
Step-by-step explanation: by factorization method, use factor 4 and 0. i.e (x-4)(x-0)=0
x=4 and x=0
The answer to the first is 4/15x and the second is x+5
Answer:
The area of the bedroom is 453.75 sq ft.
Step-by-step explanation:
Answer: V≈1642 cm³.
Step-by-step explanation:
D=20 cm d=12 cm h=8 cm V=?
Answer:
number of units for cost to be minimum=150
Step-by-step explanation:
y=2x^2-600 x+49000
dy/dx=4x-600
dy/dx=0 gives 4x-600=0
4x=600
x=150
d^2y/dx^2=4x
at x=150,d^2y/dx^2=4*150=600>0
so y is minimum at x=150