Question

here- find algebraic form (Xn) of algebraic sequence -7, -5, -3​
also please answer the 2 questions above
​

Answer 1

Step-by-step explanation:

C) . a= -7 ,d= 2

a23= a+22d

put a and d values

a23= -7 +22×2

a23= -308

D) a=3 ,d =1÷2

a16= a+15d

a16= 3+15×1÷2

a16= 21÷2 answer

• a16=10.5