The tables below show four sets of data:

set a
x
1
2
3
4
5
6
7
8
9
y
10
9
8
7
6
5
4
3
2
set b
x
1
2
3
4
5
6
7
8
9
y
3
4
5
6
7
8
9
10
11

set c
x
1
2
3
4
5
6
7
8
9
y
8
6
5
4
3.5
3
2.5
2
2
set d
x
1
2
3
4
5
6
7
8
9
y
1
2.5
2.5
3
4
5
6
8
9

for which set of data will the scatter plot represent a positive linear association between x and y?

set a
set b
set c
set d

Set A

Step-by-step explanation:

Because both x and y have to have a even number.

Example: (1,2) (2,4)...ect

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

this is answer of 144 cubic meters