Answer:
96
Step-by-step explanation:
Total area is 12*8=96 square feet
Each tile is 1 square foot
The required tiles are therefore 96/1=96
Yep that’s fine I don’t have a problem with that but it’s not which is 6 minutes
ANSWER
![a_ {10} = \frac{25}{32}](https://tex.z-dn.net/?f=a_%20%7B10%7D%20%3D%20%5Cfrac%7B25%7D%7B32%7D%20)
EXPLANATION
The given geometric sequence is
400, 200, 100...
The first term is
![a_1=400](https://tex.z-dn.net/?f=a_1%3D400)
The common ratio is
![r = \frac{200}{400} = \frac{1}{2}](https://tex.z-dn.net/?f=r%20%3D%20%20%5Cfrac%7B200%7D%7B400%7D%20%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20)
The nth term is
![a_n=a_1( {r}^{n - 1} )](https://tex.z-dn.net/?f=a_n%3Da_1%28%20%7Br%7D%5E%7Bn%20-%201%7D%20%29)
We substitute the known values to get;
![a_n=400( \frac{1}{2} )^{n - 1}](https://tex.z-dn.net/?f=a_n%3D400%28%20%20%5Cfrac%7B1%7D%7B2%7D%20%29%5E%7Bn%20-%201%7D%20)
![a_ {10} =400( \frac{1}{2} )^{10 - 1}](https://tex.z-dn.net/?f=a_%20%7B10%7D%20%3D400%28%20%20%5Cfrac%7B1%7D%7B2%7D%20%29%5E%7B10%20-%201%7D%20)
![a_ {10} =400( \frac{1}{2} )^{9}](https://tex.z-dn.net/?f=a_%20%7B10%7D%20%3D400%28%20%20%5Cfrac%7B1%7D%7B2%7D%20%29%5E%7B9%7D%20)
![a_ {10} = \frac{25}{32}](https://tex.z-dn.net/?f=a_%20%7B10%7D%20%3D%20%5Cfrac%7B25%7D%7B32%7D%20)
Answer:
89/500
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
The angle between the tangent and AC is right, that is 90°, thus
x = 180° - (90 + 22)° = 180° - 112° = 68° → C