The length of a rectangle is x feet. Its width is (x-7) feet. Draw and label a rectangle to represent this situation. Then write three different expressions you could use to find its perimeter.

Perimeter of rectangle:

Step-by-step explanation:

We are given the following in the question:

Length of rectangle:

Width of rectangle:

Perimeter of rectangle:

Expressions to calculate perimeter

The attached image shows the image of the rectangle.

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

christopher is 272,195 year old

step-by-step explanation: