I think the answer is the second one
Answer:
$6 an hour.
Step-by-step explanation:
$81 divided by 13.5 hours. (to find the rate of dollars per hour)
81 ÷ 13.5 = 6
Answer:
Step-by-step explanation:
Write the sum of the terms in descending order.
Answer:
= - 3n
Step-by-step explanation:
There is a common difference between consecutive terms, that is
- 6 - (- 3) = - 9 - (- 6) = - 12 - (- 9) = - 3
This indicate the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 3 and d = - 3 , thus
= - 3 - 3(n - 1) = - 3 - 3n + 3 = - 3n
The n th term is - 3n
The answer for this question when grouping:
(x+2)(3x^2+1)