Answer:
Option 3 is correct that is all integers where n ≥ 1
Step-by-step explanation:
We have been given the arithmetic sequence
Here, domain are the values that n can take
Therefore, option 3 is correct.
Option 1 is incorrect because arithmetic series will start from 1
Option 2 is incorrect because it is not considering the positive values except 1
Option 4 is incorrect because if it will be real number range may be a fraction which should not be in an arithmetic sequence.
Given:
The perimeter of a rectangular building is 1200 feet.
The width of the building is 2 feet less than three times the length.
To find:
Width of the building.
Solution:
Let length of the building be x.
Then, width = 3x-2
We know that,
Add 4 on both sides
Divide both sides by 8.
Now,
Therefore, the width of the building is 449.5 feet.
<u>Step</u><u> </u><u>1</u>
given
<u>Step</u><u> </u><u>2</u>
<u>Step</u><u> </u><u>3</u>
Reason: Reflexive property
<u>Step</u><u> </u><u>4</u>
ASA