Answer:
130
Step-by-step explanation:
Answer:
there's nothing here to answer
Answer: 64 25% of 256 is 64
Step-by-step explanation:
Couldnt you just do the X's together and the Y's and your answer after you divide by each??
Answer:
<h3>
![\bold{a_{13}=52}](https://tex.z-dn.net/?f=%5Cbold%7Ba_%7B13%7D%3D52%7D)
</h3>
Step-by-step explanation:
![d=a_4-a_3=a_3-a_2\\\\a_3-a_2=a_4-a_3\\\\2a_3=a_2+a_4\\\\2a_3=13+7\\\\2a_3=20\\\\a_3=10\\\\d=10-13=-3\\\\\\a_2=a_1+d\quad\implies\quad a_1=a_2-d=13-(-3)=16\\\\a_n=a_1+d(n-1)\\\\a_{13}=16+(-3)(13-1)=16+36=52](https://tex.z-dn.net/?f=d%3Da_4-a_3%3Da_3-a_2%5C%5C%5C%5Ca_3-a_2%3Da_4-a_3%5C%5C%5C%5C2a_3%3Da_2%2Ba_4%5C%5C%5C%5C2a_3%3D13%2B7%5C%5C%5C%5C2a_3%3D20%5C%5C%5C%5Ca_3%3D10%5C%5C%5C%5Cd%3D10-13%3D-3%5C%5C%5C%5C%5C%5Ca_2%3Da_1%2Bd%5Cquad%5Cimplies%5Cquad%20a_1%3Da_2-d%3D13-%28-3%29%3D16%5C%5C%5C%5Ca_n%3Da_1%2Bd%28n-1%29%5C%5C%5C%5Ca_%7B13%7D%3D16%2B%28-3%29%2813-1%29%3D16%2B36%3D52)