Step-by-step explanation:
Im confused with the second one but it matched with the option.
Step-by-step explanation:
1. Length = 3x^2 +6x-10
Width = 3x+5
Area = ?
Area = Length×Breadth
2.
0.872
Step-by-step explanation:
The line is increasing. This means the correlation coefficient will be positive.
This is a fairly good fit; this means we want the larger of the two positive numbers, or 0.872.