If the area of Bianca’s rectangular backyard patio is represented by the expression x2 – 18x + 81, and the length of the patio is represented by the expression x − 9

:

1. what is the expression for the width of the patio? Explain and show all work.

2. what special rectangular shape is the patio? (can be determined by side lengths). Explain and show all work.

9, square

Step-by-step explanation:

1) factor x^2-18x+81 to get answer

x^2-9x-9x+81

x(x-9) -9(x-9)

(x-9) (x-9)=0

x-9=0

x=9

the width is 9

since both the length and width is 9, this is a square

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

answer: 12x^2+6x

step-by-step explanation:

6x does not equal 24x. hope it works!