Answer:
7x^2+9x
Step-by-step explanation:
Hope this helps...
7x^2+(5x+4x)=
7x^2=9x
the real square root of 0.0009 is 0.03
Answer:

Step-by-step explanation:
The gradient = change in y / change in x
When the x value increases by 1, the y value decreases by 2 so -2 / 1 = -2
The y intercept is 4, so it is +4
Answer:

Step-by-step explanation:
Given

Required
Solve

The expression can be split to:





So, we have:


Rewrite as:



An educated guess or a estimation