Garry is playing with billiard balls. He wants to design a glass plane for playing so that he can roll the billiard balls down the plane.
The plane has a vertical height of 2 feet and a slant length of 10 feet. What is the angle the glass plane will make with the ground?
A. 0.1154
B. 1.154
c. 11.54
D. 10.54

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

false

inverse variation is not exponential