In exercises 19-22, determine the value(s) of h such that the matrix is the augmented matrix of a consistent linear system. h -3 1 4 20 19 6 8 -2 4

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.