Grand Canyon University Natural Numbers & Positive Whole Values Exercises

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Classify each real number as one or more of the following: natural number, whole number,
integer, rational number, or irrational number.
.
3
1
6
„V2,0.29,6
7′
What are the natural numbers in this list? Select all that apply.
U
Α. π
]
B. 3
1
OC. V2
D. 0.29
E.
6
F. There are no natural numbers in this list.
7
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The table shown below lists the CPI for a particular country for selected years from 1970 to 2015. A CPI of 40 indicates that a typical sample of consumer goods costing $100 in 1982-1984 would have cost $40 in 1970. Calculate the percent
change in the CPI for the time period from 1985 to 1990.
Year
CPI
1970
40
1975
69
1980
83
1985
108
1990
131
1995
152
2000
177
2005 | 2010
195 216
2015
241
The percent change for the time period 1985 to 1990 is approximately %.
(Round to the nearest tenth as needed.)
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A 1-inch-high stack of $100 bills contains about 400 bills. In 2010, the gross federal debt was approximately 21.6 trillion dollars.
(a) If the entire federal debt were converted into a stack of $100 bills, how many feet high would it be?
(b) The distance between city A and city B is approximately 3500 miles. Could this stack of $100 bills reach between these two cities?
feet high.
(a) For the entire federal debt, the stack of $100 bills would be
(Type a whole number.)
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At 9:00 A.M. car A is traveling north at 70 miles per hour and is located 70 miles south of car B. Car B is traveling west at
40 miles per hour.
North
100
50
(a) Let (0,0) be the initial coordinates of car B in the xy-plane, where units are in miles. Plot the locations of each car at
9:00 A.M. and at 11:00 A.M.
(b) Find the distance d between the cars at 11:00 A.M.
East
West
A
-100
-50
50
100
-50-
-100-
South
(a) Plot the position of car B at 9:00 A.M.
Plot the position of car A at 9:00 A.M.
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6-
© Ó
Use the graph to find the standard equation of the circle.
-6
6
-6-
Write the equation of the circle in standard form.
(Type your answer in standard form. Simplify your answer.)
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