Chapter 12.7, Problem 2MRE

To determine

To calculate: The solution of the below indicated variable, also need to state restrictions if any.

  $A=\frac{h\left(b+c\right)}{2};h$

Answer to Problem 2MRE

Solution for the indicated variable is $h=\frac{2A}{\left(b+c\right)}$

And the restriction for the indicated variable is at $\left(b+c\right)=0$ .

Explanation of Solution

Given information:

Equation $A=\frac{h\left(b+c\right)}{2}$

Indicated variable h

Now get h alone on one side from equation 1.

  $2A=h\left(b+c\right)$

  $\frac{2A}{\left(b+c\right)}=h$

The solution is meaningful if and only if $\left(b+c\right)\ne 0$ , so the restriction for the indicated variable is at $\left(b+c\right)=0$ .