The perimeter of a triangle is:
P = a + b + c
We are given that:
b = a + 3
c = 2 a – 3
Therefore:
68 = a + a + 3 + 2 a – 3
68 = 4 a
a = 17
and,
b = a + 3 = 20
<span>c = 2a – 3 = 31</span>
A function with zeros -3 and 2 could be:
(x + 3)(x - 2) or x² + x - 6
Keep in mind that there are an unlimited number of functions that have these zeros, such as:
2(x + 3)(x - 2) or 2x² + 2x - 12
(x + 3)(x - 2)(x + 5) or x³ + 6x² - x - 30
Generally, the function just has to include the factors (x + 3) and (x - 2) to have the zeros -3 and 2.
t = 9 + s is the expression for number of pages in terry's essay
<em><u>Solution:</u></em>
Given that, Terry's essay has 9 more pages than stacey's essay
Let "s" be the number of pages in Stacey essay
Let "t" be the number of pages in terry essay
To find: Expression for the number of pages in terry's essay
From given statement,
Terry's essay has 9 more pages than stacey's essay
Which means, number of pages in terry essay is 9 more than number of pages in Stacey essay
Therefore,
Number of pages in terry essay = 9 + number of pages in Stacey essay

Thus the expression for number of pages in terry's essay is found