Substitute the given values into the formula, and solve for the unknown variable.
A=1/2h(B+b); A=21, B=2, b=5 h= ?

Step-by-step explanation:

Given:

We have to find the value of  'h'

So, putting the given values in the equation to find the value of 'h'.

Implementing the given values in the given equations:

So, the value of 'h' is

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.