2xy, -xy, and 1/2xy because they contain the same variables
Answer:
We can see that as the endpoints of the intervals increase, the average rate of change for a square root function decrease
Step-by-step explanation:
Take for example the following intervals:
- interval: 0 - 1, average rate of change: √1 - √0 = 1
- interval: 1 - 2, average rate of change: √2 - 1 = 0.414
- interval: 2 - 3, average rate of change: √3 - √2 = 0.317
- interval: 3 - 4, average rate of change: 2 - √3 = 0.267
There has to be a table of some sort, but if not I would say go with the largest can, because usually the bigger the item, the lower the unit rate is.
Let us start with the unknown. Let us give one of the base angles the
value of x. The other base angle is also x since both the base angles in
an isosceles triangle will be equal. The remaining angle is 40 more
than three times one of the base angles.It is 3x + 40. Here we get the
equation
x+x+3x+40=180
5x + 40 = 180
5x = 180 - 40 = 140
Therefore x = 140/5 = 28
So the angles are 28, 28 and 124.
The third angle is 3 times 28 + 40 = 84 + 40 = 124.
