Respuesta :
The expression that correctly represents the height of the prism is;
height = 5x + 3
We are given;
Volume of prism base; V = 10x³ + 46x² - 21x - 27 Â
Area of prism base; A = 2x² + 8x - 9 Â
Now, formula for Volume of Prism is;
V = Ah
Where h is height of prism
Thus;
h = V/A
h =  (10x³ + 46x² - 21x - 27)/(2x² + 8x - 9)
Using long division method to divide gives; Â
          ___5x + 3___________-
 2x² + 8x - 9| 10x³ + 46x² - 21x - 27
          - 10x³ + 40x² - 45x
                  6x² + 24x - 27
                 - 6x² + 24x - 27
                         0
Read more about long division method of polynomials division at; https://brainly.com/question/25289437