The steps to derive the quadratic formula are shown below:
step 1 ax? + bx + c = 0
step 2 ax? + bx = -
step 3 x2 + x=-
step 7 (x+ - + pomac -- vozac
step 8 x= -b
/b2 - 4ac
2a +
2a
step 9 x= -btvb2-4ac
2a
which of the following is the first incorrect step?

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?