What two numbers have a product of -22 and a sum of -9?
2 answers:
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Answer:
1)
2)
3)
Step-by-step explanation:
Given : A certain economy's consumption function is given by the equation
where, C(x) is the personal consumption expenditure in billions of dollars, and x is the disposable personal income in billions of dollars.
To find :
1) C(0)
Put x=0 in the given equation,
2) C(50)
Put x=50 in the given equation,
3) C(100)
Put x=100 in the given equation,
Let 
be the length of the rectangle and 
be the width. In the problem it is given that 
. It is also given that the area 
. Substituting in the length in terms of width, we have 
. Using the zero product property, 
. Solving these we get the width 
. However, it doesn't make sense for the width to be negative, so the width must be 
. From that we can tell the length 
.