5 - 7 = - 2 ;
- 2 - 7 = - 9 ;
-9 - 7 = -16 ;
"common difference" d is - 7 ;
The n-th term of an arithmetic sequence is of the form <span>an = a1 + (n – 1)d ;
</span>a50 = 5 + 49 × ( - 7 ) = 5 - 343 = - 338;
The answer is the letter A
Answer:
10^-99, 10^-17, 10^-5, 10^5, 10^14, 10^30
Step-by-step explanation:
Each root adds a exponent behind the initial one. The negatives add a decimal point and zeros in front
Sorry, I wish I could help but I don’t understand this.
