84(1/7)+9(1/3)
The 84 is divided by the 1/7th and the 9 is divided by the 1/3. They are then added.
Draw out a number line with the values 0, 5, 10, 15, 20, 25, 30, etc (basically multiples of 5)
Then plot a point at 25
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Or you can draw out a number line with the multiples of 10, so with the values 0, 10, 20, 30, ...
Then plot a point at the exact midway point between 20 and 30 to represent the value 25
Answer:
option (b) df = 1, 24
Step-by-step explanation:
Data provided in the question:
levels of factor A, a = 2
levels of factor B, b = 3
Subjects in each Sample, s = 5
n = 5 × 3 × 2 = 30
Now
df for Factor A = a - 1
= 2 - 1
= 1
df for Factor B = b - 1
= 3 - 1
= 2
df for Interaction AB = ( a - 1 ) × ( b - 1 )
= 1 × 2
= 2
df for Total = n - 1
= 30 - 1
= 29
df for error = 29 - 5
= 24
Hence,
df values for the F-ratio evaluating the main effect of factor A is 1, 24
The correct answer is option (b) df = 1, 24
Option D:
The length of LJ = 3.5
Solution:
In the triangle LJK,
LK = 9, ∠K = 23°, ∠J = 89°
To find the length of LJ:
<u>Law of sine: </u>
A, B, C are the angles of the triangle and
a, b, c are the sides of the triangle.
Here for ΔLJK,
The side opposite to angle L is <em>l</em>.
The side opposite to angle J is <em>j</em>.
The side opposite to angle K is <em>k</em>.
Take only two sides.
LJ = 3.5 (approximately)
Option D is the correct answer.
The length of LJ = 3.5.
