The rotation of the triangle is 270 degrees clockwise, or 90 degrees counterclockwise. Most commonly, clockwise measurements are used when it comes to rotations.
I hope this helped. Let me know if I was correct please.
Answer: (d)
Step-by-step explanation:
Given
It takes 14 hours with 40 mph to reach the theatre
so, the distance traveled is given by
![\Rightarrow d_1=40\times 14\\\Rightarrow d_1=560\ \text{miles}](https://tex.z-dn.net/?f=%5CRightarrow%20d_1%3D40%5Ctimes%2014%5C%5C%5CRightarrow%20d_1%3D560%5C%20%5Ctext%7Bmiles%7D)
It is given that d is the distance from theatre to friend's house
So, d must be less than
i.e.
![d](https://tex.z-dn.net/?f=d%3Cd_1)
So, the most appropriate option out of the given is option (d) as d must be less than 560 and it is possible that it maybe less than 160.
Answer:
bean
Step-by-step explanation:
An arithmetic sequence takes the form
![a_n=a_{n-1}+d](https://tex.z-dn.net/?f=a_n%3Da_%7Bn-1%7D%2Bd)
where
![d](https://tex.z-dn.net/?f=d)
is the common difference between terms. You can solve for
![a_n](https://tex.z-dn.net/?f=a_n)
in terms of any of the previous terms of the sequence:
![a_n=a_{n-1}+d\implies~a_n=a_{n-2}+2d\implies~a_n=a_{n-3}+3d\implies\cdots\implies~a_n=a_{n-k}+kd](https://tex.z-dn.net/?f=a_n%3Da_%7Bn-1%7D%2Bd%5Cimplies~a_n%3Da_%7Bn-2%7D%2B2d%5Cimplies~a_n%3Da_%7Bn-3%7D%2B3d%5Cimplies%5Ccdots%5Cimplies~a_n%3Da_%7Bn-k%7D%2Bkd)
for some integer
![1\le k\le n-1](https://tex.z-dn.net/?f=1%5Cle%20k%5Cle%20n-1)
Continuing in this way, you know that the sequence can be defined explicitly in terms of the first term
![a_1](https://tex.z-dn.net/?f=a_1)
![a_n=a_1+(n-1)d](https://tex.z-dn.net/?f=a_n%3Da_1%2B%28n-1%29d)
Given that the 4th term is
![a_4=-6](https://tex.z-dn.net/?f=a_4%3D-6)
and the 11th term is
![a_{11}=-34](https://tex.z-dn.net/?f=a_%7B11%7D%3D-34)
, you have the following system of equations.
![\begin{cases}-6=a_1+(4-1)d\\-34=a_1+(11-1)d\end{cases}](https://tex.z-dn.net/?f=%5Cbegin%7Bcases%7D-6%3Da_1%2B%284-1%29d%5C%5C-34%3Da_1%2B%2811-1%29d%5Cend%7Bcases%7D)
Solving this system for the two unknowns yields
![a_1=6](https://tex.z-dn.net/?f=a_1%3D6)
and
![d=-4](https://tex.z-dn.net/?f=d%3D-4)
.
So, the sequence is given explicitly by