For the first questions it is x = -2 then the second one is x = 12 the third is x = 15
Answer:
x=0.2
Step-by-step explanation:
given 200 : 2 :: 20 : x
=
100=
x=
x=0.2 answer
The correct answer would be 3 +/-
In order to solve for this you must first get the equation equal to 0.
x^2 + 6x + 9 - 6 ----> simplify like terms
x^2 + 6x + 3
Now knowing this we can use the coefficients of each one in descending order of power as a, b and c.
a = 1 (because it is the coefficient to x^2)
b = 6 (because it is the coefficient to x)
c = 3 (because it is the end number)
Now we can plug these values into the quadratic equation.
3 +/-
And those would be your two answers.
Well, negative slope has the word negative in it right? So, it will be the negative number. Answer: -5 (negative 5)