Answer:
Step-by-step explanation:
4, 6, 7, 9, 10, 4, 6, 5, 4
First we will order them least to greatest.
4,4,4,5,6,6,7,9,10
Now we will add them all up.
We get 55.
Now we will divide 55 by the amount of numbers there are (9).
55/9= 6.11111
SO 4.9 and 6 are both less than the mean of the data set.
4x=80 and 5x=100
4x+5x=180
9x=180
1/9 (9x)=1/9 (180)
x=20
4(20)=80
5(20)=100
Check attachment for solution
multiply 5 and 2 then that with 23.
5x2=10 23x10=230
APC is 90 degrees
When lines intersect and are perpendicular. that means the angle of intersection is 90 degrees.