Answer:
Step-by-step explanation:
From the information on 60 students we write frequency distribution as
x 1 2 3 4 5 6 7 total
f 13 22 15 6 3 0 1 60
C 13 35 50 56 59 59 60
xf 13 44 45 24 15 0 7 148
x^2f 13 88 135 96 75 0 49 456
Mean = 2.67
Var = 445.92
Std dev = 21.21
I quartile = 2
III quartile = 3
20% have atmost 1
I am going to assume you meant 4 and one half hours. So you want to divide the distance by time. So 288 divided by 4.5 hours is 64. So Miley's average speed is 64 miles per hour.
To determine the length of the stones he will need to go around his patio, Lorenzo will need to find the perimeter of the patio.
To find the perimeter, you will need to know the length and the width of the rectangle.
The width us 12 feet, and the length is 14 feet (12 +2).
P = 2l +2w
2 x 14 + 2 x 12
P = 52 feet
Lorenzo will need at least 52 feet of stone to go around his patio.
Answer:
x= 12
Step-by-step explanation:
both degrees are the same since they are alternate exterior angles so 60 = 6x -12. and to solve : plus 12 in both side, 72=6x. then divide 72 by 6 to get x