Mr. Roy is scheduled to work less than 18 hours this week. He all ready work 7 hours. If x is the remaining number of hours Mr. Roy could work this week, which inequalities represent the number of remaining hours Mr. Roy could be scheduled to work this week ? Select all that apply A. x+7>18
B. x+7 <18
C. x+18>7
D X>11
E x <11

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit