Distribute and combine like-terms!
-4x + 12x - 2x - 2
6x - 2
The maximum positive value that the correlation coefficient can have is 1.
Thus, 0.88 is pretty close, indicating a positive slope for the regression line and points lying close to that line.
440 x 10 = 4,400. Yes 4,400 is 10 times as much as 440
Answer : 7.5 ft
Step-by-step explanation:
when the length of the shadow is 8ft, the actual height of the man = 5ft
8:5
let the giraffe be 'x' ft tall.
if the length of the shadow is 12ft, actual height = x ft
12:x
8:5 x 12:x
× 
x=
x=7.5 ft
Therefore, the giraffe is 7.5ft tall.