30. The area of a rectangular fountain is (x^2 + 13x +22) ft.
The width is (x + 2) ft.

A.
Find the length of the fountain.

B.
A 2-foot walkway is built around the fountain making the width become X+ 6. Find the length of the
outside border of the walkway.

Length:

C.
Find the total area covered by the fountain and walkway.

b. 24 mm

step-by-step explanation:

use the pythagorean theorem.

a^2 + b^2 = c^2

a^2 + 7^2 = 25^2

a^2 + 49 = 625

a^2 = 576

a = 24

answer: b. 24 mm

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

(x) - (y) = (1 + 4i)