Solution :
Group Before After
Mean 693.75 743.75
Sd 155.37 143.92
SEM 54.93 50.88
n 8 8
Null hypothesis : The preparation course not effective.
Alternative hypothesis : The preparation course is effective in improving the exam scores.
(after - before)
The diagonals are perpendicular is not true.
Answer:
Exact Form-9+√69÷6
Decimal form-2.88443731
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
y = (2x - 2) / 4 Interchange x and y
x = (2y - 2) / 4 Multiply both sides by 4
4x = 2y - 2 Add 2 to both sides.
4x + 2 = 2y Divide both sides by 2
4x/2 + 2/2 = 2y / 2
2x + 1 = y
Now put 3 in wherever you see an x
2*3 + 1 = y
6 + 1 = y
7 = y
Answer:
Its 100
Step-by-step explanation:
I think <3 trust me on this shawty but not if its wrong
