Determine which property of absolute value justifies the statement.
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A. Property 4: the sum of two numbers is less than or equal to the absolute value of the sum of the numbers.
B. Property 4: the absolute value of the sum of the numbers is less than or equal to the sum of the two numbers.
C. Property 5: the absolute value of the sum of two numbers is less than or equal to the sum of their absolute values (the triangle inequality).
D. Property 5: the sum of the absolute values of two numbers is less than or equal to the absolute value of their sum (the triangle inequality).
Answer: C
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Solve the problem.For children aged 5 to 15 years, the number of hours watching cartoons per week can be estimated by the function 
where s is the age of the child. Find the domain of the function.
A. (-?, ?) B. [0.5, 16] C. [11, 16] D. [5, 15]
Find the area of the shaded region. Round results to the nearest unit.
A. 28 m2 B. 14 m2 C. 7 m2 D. Not enough information given
Multiply: 10-3 ð 10-3
a. 106 b. 103 c. 100 d. 10-3 e. 10-6
Write the function f as a set of ordered pairs. Give the domain and range of f.f(13) = 13, f(-2) = -6, f(2) = 8
A. f = {(-2, -6), (8, 2), (13, 13)}; D = {-2, 8, 13}; R = {-6, 2, 13} B. f = {(13, 13), (-2, -6), (2, 8)}; D = {-2, 2, 13}; R = {-6, 8, 13} C. f = {(-6, -2), (8, 2), (13, 13)}; D = {-6, 8, 13}; R = {-2, 2, 13} D. f = {(13, 13), (-2, -6), (2, 8)}; D = {-2, 2, 13}; R = {-6, 8}