This means the sum of the measure of these two angles will be 55+x=90
so x=90-55=35
The volume of a cone is V = (1/3)*pi*h*r^2
V = (1/3)*3.14*8*12^2 = 1206 cu.cm
0.5 + a = 3.2
3.2 - 0.5 = 2.7
when you subtract a negative number from any platitude number the equation changes to addition so you would add the value of the negative number to 1.
Answer:
x = 0, Need the steps?
STEPS:
9x - 7 = -7 (Original Problem)
9x = 0 (Add 7 to both sides)
x = 0 (Divide both sides by 9)