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jackie0833
03.07.2019 •
Mathematics
Which of the following relations is not a function? a. {(7, 8), (8, 9), (9, 10), (7, 6)} b. {(7, 8), (8, 9), (9, 10), (10, 11)} c. {(7, 8), (8, 9), (9, 8), (10, 9)} d. {(7, 8), (8, 8), (9, 8), (10, 8)} pls
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Ответ:
A.{(7, 8), (8, 9), (9, 10), (7, 6)}
Step-by-step explanation:
when graphing do the straight line test on the x axis with a pencil or something and if the pencil touches more than one dot than it is not a function.
another way is to just look at the numbers for the x axis and if any of the numbers are the same for example (4,6), (4,9) then it is not a function. an example of a function would be (8,9), (2,6).
Ответ:
This value is approximate.
Work Shown:
area = 0.5*side1*side2*sin(included angle)
area = 0.5*AB*AC*sin(A)
area = 0.5*11*18*sin(55)
area = 81.0960523846101
area = 81.1 cm^2
The cm^2 refers to "square cm".
Notice that the angle must be between the two sides, hence the "included".