The annual expenditure for cell phones and cellular service varies in part by the age of an individual. The average annual expenditure E a in $ for individuals of age a (in yr) is given in the table. a. Use regression to find a quadratic function to model the data. b. At what age is the yearly expenditure for cell phones and cellular service the greatest? Round to the nearest year. c. What is the maximum yearly expenditure? Round to the nearest dollar.
The annual expenditure for cell phones and cellular service varies in part by the age of an individual. The average annual expenditure E a in $ for individuals of age a (in yr) is given in the table. a. Use regression to find a quadratic function to model the data. b. At what age is the yearly expenditure for cell phones and cellular service the greatest? Round to the nearest year. c. What is the maximum yearly expenditure? Round to the nearest dollar.
Solution Summary: The author calculates the quadratic function by using regression. The average annual expenditure of individuals of various ages is given in the table.
The annual expenditure for cell phones and cellular service varies in part by the age of an individual. The average annual expenditure
E
a
in $
for individuals of age a (in yr) is given in the table.
a. Use regression to find a quadratic function to model the data.
b. At what age is the yearly expenditure for cell phones and cellular service the greatest? Round to the nearest year.
c. What is the maximum yearly expenditure? Round to the nearest dollar.
For the system consisting of the lines:
and
71 = (-8,5,6) + t(4, −5,3)
72 = (0, −24,9) + u(−1, 6, −3)
a) State whether the two lines are parallel or not and justify your answer.
b) Find the point of intersection, if possible, and classify the system based on the
number of points of intersection and how the lines are related. Show a complete
solution process.
3. [-/2 Points]
DETAILS
MY NOTES
SESSCALCET2 7.4.013.
Find the exact length of the curve.
y = In(sec x), 0 ≤ x ≤ π/4
H.w
WI
M
Wz
A
Sindax
Sind dy max
Утах
at 0.75m from A
w=6KN/M L=2
W2=9 KN/m
P= 10 KN
B
Make the solution handwritten and not
artificial intelligence because I will
give a bad rating if you solve it with
artificial intelligence
Elementary Statistics: Picturing the World (7th Edition)
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