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becca3539
10.11.2020 •
Mathematics
Connor has hired two painters to paint his house. The first painter charges $12 an hour and the second painter charges $11 an hour. It will take 15 hours of labor to paint the house. A. Wrote a polynomial to represent the total cost of the job if the first painter does x hours of work. B. Write a polynomial to represent the total cost of the job if the second painter does y hours of labor.
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Ответ:
Cost = cost of first painter + cost of second painter
= $12/hr * hours worked + $11 * hours worked
where x is the hours the first painter works
C(x) = 12 x + 11 ( 15 - x)
= 12 x + 165 - 11x
= x + 165
C(x,y) = 12 x + 11 y
where y = 15 - x because the total hours is 15
Step-by-step explanation:
Lmk if I need to explain
Ответ:
-1 and -0.5 cannot represent probabilities because a probability cannot be negative. 4.2 cannot represent a probability because it is greater than one. 0.6, 0.888, 0, and 0.39 can represent probabilities because they are between zero and one, inclusive.
Step-by-step explanation: