Answer:
The average is 85
Step-by-step explanation:
In order to find the average, you add all the number and divide with the number of numbers:
76+85+97+82= 340
340/4= 85
Yes because you have to show if the slope is positive or negative
You can solve by using Pythagoras theorem.
Let the longest side be c.
a^2 + b^2 = c^2
If this holds, it is a right angle.
But, 3.5^2 + 4.5^2 is not equal to 5.5^2.
