Half the x-coefficient is -3, so the equation needs to be rearranged into a form that looks like
x² -6x +(-3)² + [something]
You can get there by adding and subtracting 9 from the original equation.
y = x² -6x +9 +7 -9 . . . . . 9 added and subtracted
y = (x² -6x +9) -2
The quantity in parentheses is a perfect square, so we can write the equation in the desired form as ...
y = (x -3)² -2
Answer:
Step-by-step explanation:
B
She would be wrong no class is worth paying attention to
Answer:
1) m∠ZAY = 130°
2) m∠ZXY = 65°
3) m∠SVY = 35°
Step-by-step explanation:
1) the arc angle is the measure of the central angle which intercepts it so 130°
2)measure of the inscribed angle is 1/2measure of intercepted Arc so 1/2 of 130° is 65°
3) In this case two chords intersect inside a circle and four angles are formed
Angle Formed by Two Chords is 1/2*(Sum of Intercepted Arcs) so
m∠SVY = 1/2( m arc RX + m arc YS) = 1/2( 15+55) =1/2 * 70 =35°
The answer is the second one.
The one that shows 5 square root of 2.
