This would be communicative property cause when solve the left side then the right they both come up to being 30=30.
Answer:
Step-by-step explanation:
Point where two sides meet 2
adjoing or next to 6
angle on inside of polygon 3
angle formed on the outside of 4
having all angles equal 5
adding to 180 1
Answer:
Step-by-step explanation:
Answer:
Below.
Step-by-step explanation:
To find the number of students in each grade you multiply the marks by the frequency density. The number of students is given by the area under the rectangles.
So to find the number of students with grade U (< 160) it is:
120 * 0.2 + 40*0.5
= 24 + 20
= 44.
The number for Grade E
= (200 - 160) * 0.5
= 40 * 0.5
= 20.
The others can be found in the same way.
