1. what are the roots of the equation? x2+3x−18=0 enter your answers in the boxes. x = and x = 2. what are the roots of the equation? x2+24=14x enter your answers in the boxes. x1= x2=

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

the height of the surface increases from the center out to the sides of the road

it is c!