A sequence is shown below. –1.5, –1.25, –1, –0.75, . . . Which explicit expression can be used to determine the value of the nth number in the sequence?
a. an = 0.25n – 1.75
b. an= n + 0.25
c. an= n – 2.5
d. an = –1.5n

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Which set of side lengths form a right side? a) 3ft,6ft,5ft b)50 in,48in,14in c)53m,48m,24m d)8cm,17cm,14cm

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)