Mathematics, 14.07.2019 10:30 jonathanjenkins701
Question 1 what is the solution set for x + 6 > 2? {x: x > -8} {x: x > -4} {x: x > 4} {x: x > 8} question 13 how many solutions does the system 9x+y=3 over 9x-y=7 have? infinitely many none one none of the above question 17 solve the system 2x+3y=5 over 3x+2y=0 by substitution. (2, 3) (3, 2) (3, -2) (-2, 3)
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Mathematics, 21.06.2019 21:50
Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
Answers: 1
Question 1 what is the solution set for x + 6 > 2? {x: x > -8} {x: x > -4} {x: x >...
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