Answer:
Option c) 0.898
Step-by-step explanation:
Given :
Total variation = 20.711
Explained variation = 18.592
unexplained variation = 2.119
we know that coefficient of determination r² = 
= 
= 0.897687 ≈ 0.898
Option c, 0.898 is the answer.
Answer: x = 1 and x = -7
Explanation:
x^2 + 6x - 7 = 0
x^2 + 6x + 3^2 = 7 + 3^2
(x + 3)^2 = 16
x + 3 = +-4 (square both sides)
x + 3 = 4
x = 1
x + 3 = -4
x = -7
It will be 89 because it increases by 4 each time
Answer:
The percentage lost is 5.3%