Solve each equation by completing the square

^2- 14m - 42 - 0

Based on the information given the height of the rectangle in inches is 6.5 inches.

Using this formula

Area of a rectangle  = Length× Width

Where:

Area = 45.5 in²

Length = 7 inches

Hence,

Let solve for Length

45.5 = 7h

Divide both sides by 7

h=45.5 / 7  

h = 6.5 inches

Inconclusion the height of the rectangle in inches is 6.5 inches.

Learn more about Area of a rectangle here:link