Answer:
x = 4
Step-by-step explanation:
5x - 4 = 4x
- Subtract 5x from both sides of the equation.
-4 = -1x
- Divide -1 to isolate the x variable
x = 4
Answer:
109 (remainder = 2)
Step-by-step explanation:
I calculated it.
Brainliest for first correct answer?
Answer:
1. Has been answered below
2. Degree of freedom is 4
Step-by-step explanation:
Row 1: 12+10+18 = 40
Row 2: 14+18+13 = 45
Row 3: 66+142+210 = 418
Grand total = 40+45+418 = 503
Column 1 : 12+14+66 = 92
Column 2: 10+18+142 = 170
Column 3: 18+13+210 = 241
Total = 92+170+241 = 503
Expected frequencies of diseased workers
92x40/503 = 7.316
170x40/503 = 13.52
241 x 40/503 = 19.165
Expected frequencies of sensitized workers
92x45/503 = 8.23
170x45/503 = 15.20
241x 45/503 = 21.56
2.
Degree of freedom
= (Number of row -1)(number of column - 1)
= 3-1 * 3-1
= 2x2
= 4
The first and last choices are true.
C is your answer
slope is 3.5
x = 0, y = 0
x = 1, y = 3.5
x = 2, y = 7
x = 4, y = 10