A) the quadratic x^2-4x-21 can be written in the form (x+a)^2+b find the values of and and b
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Answer:
We have to put the data for purchased item in a frequency table.
Step-by-step explanation:
The diagram is attached below.
Firstly we have to see that how many customers fall under range .
Then .
Then .
Finally
.
If we go through the items purchased by customers we can see that item ranges from have
customers.
Item purchased range from have
customers.
Item purchased range from have
customers.
Item purchased range from have
customers.
Total number of customers =
As we have total number of customers and they have varied quantity of items purchased.
