This simplified is 126x so that is equivalent to this expression
Answer:
434
Step-by-step explanation:
Looking at this sequence, we can immediately tell that it is <em>arithmetic</em>, because the terms keep adding up by 9.
Now that we know it is arithmetic, we can use the formula:
Where tn represents the nth number, t1 represents the first term, and d represents the increasing change.
Plugging in the given values, we have:
A. 7,8,9. creates a perfect triangle
Answer:
it's the step by step proceedure you use when solving an equation. Parentethese (do this first)
Exponents (take care of that after parentheses)
Multiplication
Division
Addition
subtraction (always the last step in the problem)
Step-by-step explanation: