Answer:
A
Step-by-step explanation:
6.6 repeating is rational because all repeating numbers are rational. Hope this helps and have a great day.
Scatterplots are used to analyze patterns of the relationship between two sets of continuous data.
Answer:
-6 and 10
Step-by-step explanation:
i did this before. np kiddo
A^2 + b^2 = c^2
12^2 + 17^2 = 485
so c^2=485
so c=22.0 inches
determinant: 
(a) 
D<0 means there are no real roots. there are two complex roots with imaginary components.
(b) D=16+20=36>0
D>0 means there are two real roots
(c) D = 20^2-4*4*25 = 0
D=0 means there is one real root with multiplicity 2