Answer:
Kelly did more math problems.
Step-by-step explanation:
Andrew - 22/13= 1.69
Kelly - 24/12= 2
Answer:X= 41
Step-by-step explanation:
Answer:
{ - 2, 10 }
Step-by-step explanation:
Given
x² - 8x = 20
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 4)x + 16 = 20 + 16, that is
(x - 4)² = 36 ( take the square root of both sides )
x - 4 = ±
= ± 6 ( add 4 to both sides )
x = 4 ± 6
Thus
x = 4 - 6 = - 2
x = 4 + 6 = 10
Answer:The third box
Step-by-step explanation:
You dont have to write the steps