Answer:
Hank = 9
Step-by-step explanation:
Let Sam = S
Let Hank = H
S + H = 24
S/H = 5/3 Cross multiply
3S = 5H
S = 5/3 * H
S + H = 24
(5/3)*H + H = 24
(5/3)*H + 3/3*H = 24
8/3 * H = 24
8/3 * 3/8 * H = 3/8 * 24
H = 9
4/(m+9)+5/(m^2-81)=
4/ ( m+9) +5 / ( m-9)(m+9)=
4(m-9)/(m+9)(m-9)+ 5 / (m+9)(m-9)=
(4m-36+5)/(m+9)(m-9)=
4m-31/ (m+9)(m-9)
the answer is D
When 36 people are seated the room is 2/3 full.
So for 1/3 , 18 people are needed
It will be 3/3 full if 54 people are present
So there can be 54 people in total
Now for the room to be 1/2 full , people will be 1/2 x 54 = 27 people
Step-by-step explanation:
E = m/2g(v²-u²)
2g×E = 2g×m/2g(v²-u²)
2Eg = m(v²-u²)
2Eg = mv² - mu²
mu²= mv² -2Eg
mu²/m = mv² -2Eg /m
u²= v² -2Eg
u = √v²-√2Eg
Answer:




Step-by-step explanation:
Given: The above data
Solving (a): Mean of each group
Mean is calculated as:




Solving (b): The sample size of each group
This is the number of rows in each group.
Hence:

Solving (c): Standard deviation (s)
This is calculated as:

So, we have:




Solving (d): Square root of n


Solving (e): SEM
This is calculated as:



