Statements Reason
1.
Given
2.
Division property of equality
" Division property of equality states that if we divide both sides of an equation by the same nonzero number, the equation remains equal".
3.
Simplifying
4.
Addition property of equality
"Addition property of equality states that if the same number is added to both sides of an equation, then the equality is still true".
5.
Simplifying
Therefore, the solution to the equation
is x = -3.
Answer:
X = -11
Step-by-step explanation:
-2 (x+3) +5x = -39
3x -6= -39
3x = -33
3x/3 = -33/3
X = -11
Answer:
Step-by-step explanation:
I'm stuck and this is hard
F(x) = -3x² + 6x - 2
First, we make the coefficient of x² equal to 1
f(x) = -3(x² + 2x - 2/3)
Now, we must make the form a² + 2ab + b²
b = 2x/2x
b = 1
f(x) = -3(x² + 2x + 1² - 1² - 2/3)
f(x) = -3(x² + 2x + 1 - 5/3)
f(x) = -3(x + 1)² - 5
The vertex is (-1 , -5)
And this is the maximum point because the coefficient of the squared term is negative.
The percent of the mark down would be 10%. If you subtract 81 from 90, you get 9. Then divide 90 by 9 and you get 10. Hope this helps!