6. Solve the equation by completing the square. Round to the nearest hundredth if necessary. 3x2 – 6x – 24 = 0

A. 7.58, –1.58
B. 2.65, 3
C. 4, –2
D. –30, 36

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

125 yards

step-by-step explanation:

i take 75 plus 50.

it would rotate about 180 degrees.

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)