5/2 = 8/x
5x = 16
x = 16/5
x = 3.2 or 3 1/5 fish
Answer:
Step-by-step explanation:
3 / 1½ = 2 cups of flour per teaspoon
2x = 5
divide both sides by 2 to isolate x
x = 2.5
You need 2.5 teaspoons of vanilla for 5 cups of flour.
y = -3(x<span> - 2)^2 + 1 </span>x<span>-coordinate of vertex: </span>x<span> = -b/(2a) = -12/-6 = 2 y-coordintae of vertex: y(2) = -12 + 24 - 11 = 1 </span>Vertex form: y = -3(x<span> - 2)^2 + 1 Check. Develop y to get back to standard form: y = -3(</span>x^2 - 4x + 4) + 1 = -3x<span>^2 + </span>12x<span> - </span>11<span>. </span>
