The answer is 7 - 7.5
you multiply 5 and 3 and get 15 then divide by 2
.................................................
10 5's go into 55 and
1 10 goes into 11
The answers I gave are only if you want them in 10's
The mean is 35/5=7
The variance is the average of the sum of squared differences of each element from the mean:
v=((7-7)^2+(5-7)^2+(11-7)^2+(1-7)^2+(11-7)^2)/5
v=(0+4+16+36+16)/5
v=14.4
Step-by-step explanation:
Since sides AD and BC are parallel,
Angle BAD + Angle ADC = 180° (co-interior angles)
Therefore Angle ADC = 180° - 115° = 65°.
