The n subject of m = n² + 3 is 
How is n made the subject of m = n² + 3 ?
m = n² + 3
n² = m- 3

What does making n the subject mean?
- To make n the subject of the formula or equation, we must rearrange the variables in the formula or equation to have a single variable n that is equivalent to the other variables in the formula.
- The equation is then rearranged such that each term containing n is placed on the same side of the equation.
- If n appears in several words, factorization might be necessary.
- Just one n needs to be displayed at the conclusion to make it the subject.
- The result of square rooting a number or variable as an inverse operation may be positive or negative.
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Answer:
The answer to your math eqaution is 7/8
Apply the standard equation of a circle:
(x-h)²+(y-k)²=R²
== (x-3)²+(y+2)²=25
You would have to use this equation : y2-y1/x2-x1 = slope
So it would be -13 +3/6-2= -10/4
Simplify it and you get : -5/2
Slope is -5/2
3,800
because the rectangle area is 40x70 plus the triangle area is 40x50 divided by 2