Answer:
28cm
Step-by-step explanation:
138-110=28
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)
Answer:
Step-by-step explanation:
The perimeter of the right angled triangle should be 36cm, hope this helps:)
One-eighth represents one part of a whole that consists of eight units, but one-twelfth represents one part of a whole that consists of 12 units. Fractions are made up of numerators and denominators. Numerators are the top numbers and denominators are the bottom numbers. The numerator is the number that represents the part of a whole. The denominator is the total number of parts.