What is the iqr of 11,11.5,10.5,17,14.5,18,17,19

6.25

Step-by-step explanation:

10.5, 11, 11.5, 14.5, 17, 17, 18, 19

Median: 15.75

Lower quartile: 11.25

Upper quartile: 17.5

Interquartile range: 17.5 - 11.25 = 6.25

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation:

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )