Answer:
The number of customer in 2009 is 6.15% the number of customer in 2008
Step-by-step explanation:
Given as :
Let the number of customers ordered coffee in 2008 = x
So, 5% of customers ordered coffee in 2008 = 5% of x =
Again The number of customer 2009 increased to 23% from 2008
So, The number of customer in 2009 = + 23% of
I.e The number of customer in 2009 = (
∴ The number of customer in 2009 = 1.23 ×
Or, The number of customer in 2009 = 0.0615 x
Hence The number of customer in 2009 is 6.15% the number of customer in 2008 Answer
Answer: The Z value for 95% confidence is Z=1.96.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer:
4 7/15 miles
Step-by-step explanation:
1 2/3 + 2 4/5
Make alike denominators by multiplying 1 2/3 by 5 and 2 4/5 by 3
1 10/15 + 2 12/15 = 3 22/15
4 7/15 miles altogether that was walked
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Answer:
Step-by-step explanation:
The directrix is a vertical line, so the parabola is horizontal. The focus lies to the left of the directrix, so the parabola opens to the left.
For a left-opening parabola:
x = a(y-k)²+h,
a < 0,
vertex (h,k)
focal length p = 1/|4a|
focus (h-p, k)
directrix: x=h+p
Apply your data
focus (1,-4)
directrix x=2
vertex (1.5,-4).
focal length p = 0.5
a = -1/|4p| = -½
x = -½(y-2)²+ ½