Given that
![a_1 = 3, d = 4](https://tex.z-dn.net/?f=a_1%20%3D%203%2C%20d%20%3D%204)
<u>Find the nth term:
</u>
![a_n = 3 + 4(n - 1)](https://tex.z-dn.net/?f=a_n%20%3D%203%20%2B%204%28n%20-%201%29)
![a_n = 3 + 4n - 4](https://tex.z-dn.net/?f=a_n%20%3D%203%20%2B%204n%20-%204)
![a_n = 4n - 1](https://tex.z-dn.net/?f=a_n%20%3D%20%204n%20-%201)
<u>Find the 100th term:</u>
![a_{100} = 4(100) - 1 = 399](https://tex.z-dn.net/?f=a_%7B100%7D%20%3D%204%28100%29%20-%201%20%3D%20399)
<u>Find the Sum:</u>
Answer:
5.6
Step-by-step explanation:
D 1/7 because only one chair is sort. Out of 7 only one person will have the short chair. 1/7 is the answer. trust me
Answer:
Distance of ladder top from ground = 9.2 meter (Approx.)
Step-by-step explanation:
Given:
Angle of elevation between ground and ladder = 43°
Length of ladder = 13.5 meter
Find:
Distance of ladder top from ground
Computation:
Length of ladder = Hypotenuse
Distance of ladder top from ground = Perpendicular
Sinθ = Perpendicular / Hypotenuse
Sin 43 = Distance of ladder top from ground / Length of ladder
0.6819 = Distance of ladder top from ground / 13.5
Distance of ladder top from ground = 9.20565
Distance of ladder top from ground = 9.2 meter (Approx.)