Answer: 895 phones
Step-by-step explanation:
Given that :
The function : y = 1.28e^1.31x ; is used to model the number of camera phones shipped since 1997
y = number of camera phones ; x = number of years since 1997
The number of camera phones shipped in the year 2002 can be obtained thus ;
x = 2002 - 1997 = 5 years
y = 1.28e^(1.31 * 5)
y = 1.28e^6.55
y = 1.28(699.24417)
y = 895.03254
y = 895 phones
She should purchase 120ft of material to cover the rectangular room.
12ft x 10ft = 120ft
<span>10^log 23 = 23 .
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You can set up a ratio of side lengths as follows:
Now we just solve for x (by cross-multiplying):
So,
x = 75 units.
