Gary used landscape timbers to create a boarder around a garden shaped like a right triangle. the longest two timbers he used are 12 feet and 15 feet long. which is closest to the length, in feet, of the shortest timber?
a. 5.2
b. 3
c. 7.3
d. 9

The answer to your question is letter D

Step-by-step explanation:

Data

hypotenuse = h = 15 ft

adjacent leg = a = 12 ft

opposite leg = b = ?

Formula

We must use the Pythagorean theorem to solve this problem

                      h² = a² + b²

Substitution

Solve for b

                     b² = h² - a²

                     b² = 15² - 12²

                     b² = 225 - 144

                     b² = 81

Result

                     b = 9 ft                    

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option