Simplify.?20?
A. -20
B. 40
C. 0
D. 20
Answer: D
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Solve the problem.Assume the function f computes the number y in millions of people using the internet in year x. f = {(1996, 1.2), (1998, 4.3), (2000, 9.8) Evaluate f(2000) and give the domain and range of f
A. f(2000) = 4.3; D: {1.2, 4.3, 9.8}, R: {1996, 1998, 2000} B. f(2000) = 9.8; D: {1.2, 4.3, 9.8}, R: {1996, 1998, 2000} C. f(2000) = 1.2; D: {1996, 1998, 2000}, R: {1.2, 4.3, 9.8} D. f(2000) = 9.8; D: {1996, 1998, 2000}, R: {1.2, 4.3, 9.8}
Find the equation of a line with the given slope and y-intercept.Slope 
, y-intercept (0, -5)
A. y = - 
x - 5
B. y = 
x + 5
C. y = - 
x + 5
D. y = 
x - 5
Determine which property of absolute value justifies the statement.
= 
A. Property 2: the absolute value of a number and its opposite are equal. B. Property 2: the opposite of the absolute value of a number is equal to the absolute value of the number. C. Property 5: the triangle inequality D. Property 1: the opposite of a number is equal to the absolute value of the number .
Solve.1.4 + x = 21.2
A. 22.1 B. 19.3 C. 19.8 D. 22.6