Answer:
4xy+13x
Step-by-step explanation:
5xy+7x+6x-xy
5xy-xy=4xy
7x+6x=13x
5xy+7x+6x-xy=4xy+13x
Answer:
3. Hardness
4. Streak
5. Density
6. Crystal
Step-by-step explanation:
big brain
Answer:
-7/4.
Step-by-step explanation:
This is the difference in the y coordinates / corresponding difference in the x coordinates.
here it is (16 - 9) / (-3-1)
= 7 / -4
= -7/4.
Answer:
-22
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required
Determine the average rate of change
Average rate is calculated as thus;

<em>In this case; b = 12 and a = 6</em>
Calculating f(12)



Calculating f(6)



Substitute 12 for b and 6 for a in 

Substitute values for f(6) and f(12)


