Answer:
-6x+6+4x^2
Step-by-step explanation:
Distribute the -3
-3(x-2)= -3x+6
Combine like terms
<u>-3x</u>+6<u>-2x</u>+4x^2
-6x+6+4x^2
Answer: All real numbers
Step-by-step explanation:
It depends on if the horizontal line goes on infinitely but I'd assume it does. It should be all real numbers.

So... none of your answers are correct. The correct answer is
21/2.
The area of the triangle below is 7.5 units
Answer: r = 7
Step-by-step explanation:
Subtract 12 from both sides to isolate the r variable. You have -42 = -6r. Divide both sides by -6 to get r by itself and you get r = 7. Verify by substituting 7 as the r value and solving the equation.