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Mathematics, 20.06.2019 18:04
Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!
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Mathematics, 21.06.2019 16:50
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
Answers: 3
Mathematics, 21.06.2019 17:00
Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have
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Mathematics, 21.06.2019 19:00
What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2
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History, 23.11.2019 23:31
Mathematics, 23.11.2019 23:31
Physics, 23.11.2019 23:31
Mathematics, 23.11.2019 23:31