Answer:
Sorted Data Set: 2, 10, 12, 13, 14, 15, 17, 18, 18, 20, 21
Mean (Average) 14.545454545455
Median 15
Range 19
Mode 18, appeared 2 times
Geometric Mean 12.803503609558
Largest 21
Smallest 2
Sum 160
Count 11
First Quartile Q1 = 12
Second Quartile Q2 = 15
Third Quartile Q3 = 18
Interquartile Range IQR = 6
Answer:
Step-by-step explanation:
you need more information bu the stem-leaf is meant to split the number
-10(-12+30)
-10 multiplied by 18
-180
Answer:
x^2+2
Step-by-step explanation:
since (x^2+2x+1) is negative from the subtraction symbol in front, the entire thing turns negative. The equation turns into 2x^2+2x+3-x^2-2x-1=...
if you solve this equation you will get x^2+2 by adding the like terms together
Answer: 900
0.8 * x =720
x= 900
