A)
Let X be the food expenditure of a family.
Let the population mean of an expenditure of a family be.
Let the population standard deviation of an expenditure of a family be.
The proportion families spend more than $30 but less than $490 per month on food is,
Ok -13*-8 is 104.
-8*18q is 144q.
Combine an you get:
144q+104
Answer:
Step-by-step explanation:
A
Answer:
1,2,3,4,6,12
Step-by-step explanation:
F(x) = x^2 +5x + 3
= (x + 2.5)^2 - 6.25 + 3
= (x + 2.5)^2 - 3.25
That is vertex form. I am not sure what you mean by function form
