Answer:
11 and 7
Step-by-step explanation:
Let these two numbers be x and y where x is greater than y.
We can write two equations from the given information:
x - y = 4
and
x + y = 18
If we add them together, the y's cancel out:
x - y = 4
x + y = 18
2x = 22
x = 11
y is 4 less than x, meaning it is 7.
The two numbers are 11 and 7
Answer:
477.1
Step-by-step explanation:
Answer:
A) 34x²
Step-by-step explanation:
6x * 7x = 42x²
2x * 4x = 8x²
42x - 8 x = 34x²
X/2 + 5 = -10
x/2 = -10 - 5
x/2 = -15
x = -15(2)
x = -30
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