Which statements are true about the parabola represented by the equation y=−3x^2+18x+23 Select all that apply. 1. The leading coefficient is positive, so the parabola opens up. 2. The leading coefficient is negative, so the parabola opens down. 3. The parabola has a maximum. 4. The parabola has a minimum.

2, 3

Step-by-step explanation:

2. The leading coefficient is -3. When the leading coefficient is negative, the parabola opens down.

3. When the parabola opens down, it has a maximum point, but no minimum point. (when the parabola opens up, it has a minimum, but no maximum)

I hope this helps :)

x = 8

Step-by-step explanation:

Since the 2 angles are complementary (they add up to 90° due to the perpendicular bisector), we add the 2 angles together to find x:

6x + 2 + 40 = 90

6x + 42 = 90

6x = 48

x = 8

The angle measure would be:

6(8) + 2

48 + 2

50°