8,869 + 3,742 = 12,411. Rounded it's C., 12,400. Hope that helps!
Sorry don't know explane the question
Step-by-step explanation:
For the quadratic equation to have 1 repeated real solution, the discriminant b² - 4ac must be zero.
=> (-z)² - 4(z - 5)(5) = 0
=> z² - 20(z - 5) = 0
=> z² - 20z + 100 = 0
=> (z - 10)² = 0
Therefore z = 10.
There ya go! The answer is 8 rows. Added a picture to show you my work :)
