Surface Area is 6s², but that is even given in the question. So this is either a very trivial question, or I'm missing something.
They're independent because she put the quarter back in her pocket. if she didn't it would be dependent
Answer:
Adult required in the case of “a” 28 and in the case of “b” the adult requirement is 19.
Step-by-step explanation:
(a) The percentage of adult that support the change is 20 percent.
Now calculate the number of adult required.
Given p = 0.20
Use the below condition:
![np(1 – p) \geq 10 \\n \times 0.20 (1 – 0.20) = 10 \\n = 63 round off](https://tex.z-dn.net/?f=np%281%20%E2%80%93%20p%29%20%5Cgeq%2010%20%5C%5Cn%20%5Ctimes%200.20%20%281%20%E2%80%93%200.20%29%20%3D%2010%20%5C%5Cn%20%3D%2063%20round%20off)
Since 35 adults are already there so required adults are 63 -35 = 28
(b) The percentage of adult that support the change is 25 percent.
Now calculate the number of adult required.
Given p = 0.25
Use the below condition:
![np(1 – p) \geq 10 \\n \times 0.25 (1 – 0.25) = 10 \\n = 54 (round off)](https://tex.z-dn.net/?f=np%281%20%E2%80%93%20p%29%20%5Cgeq%2010%20%5C%5Cn%20%5Ctimes%200.25%20%281%20%E2%80%93%200.25%29%20%3D%2010%20%5C%5Cn%20%3D%2054%20%28round%20off%29)
Since 35 adults are already there so required adults are 54 -35 = 19
.
Answer:
19+8=27
27*11=297
297+4=301
Step-by-step explanation:
BODMAS
you can split the figure in multiple parts to make it easier:
area rect. 1;
9m×4m= 36m²
area rect 2:
7m×3m= 21m²
area tri.:
18m× (4m+7m+4m-5m)
=18m× 10m
=180m²
total area:
36m²+21m²+180m²= 237m²