Answer:
The first one perimeter is 111
Step-by-step explanation:
How to find the perimeter is too add all the numbers you see
Answer:
x + 3y
Step-by-step explanation:
- x + x + x + y x y x y
-x + 2x + 3y
x + 3y
Answer:
(4, -3) reflected over the X axis is (4,3)
Step-by-step explanation:
6. D
<span>"7n + 18"
7. A
</span><span>"{4, 5, 6, 8}"
</span><span>8. C<span>
"Positive Numbers"</span></span>
Answer:
= - 3n - 3
Step-by-step explanation:
The nth term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 6 and d = a₂ - a₁ = - 9 - (- 6) = - 9 + 6 = - 3 , then
= - 6 - 3(n - 1) = - 6 - 3n + 3 = - 3n - 3