Factor the expression 5x^2-18x+9

(5x−3)(x−3)

Step-by-step explanation:

For a polynomial of the form

ax2+bx+c, rewrite the middle term as a sum of two terms whose product is

a⋅c=5⋅9=45 and whose sum is b=−18.

5x2−3x−15x+9

Factor out the greatest common factor from each group.

x(5x−3)−3(5x−3)

Factor the polynomial by factoring out the greatest common factor, 5x−3.

(5x−3)(x−3)

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

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