Legit way is vertex form
easy way is this
x value of vertex in form
f(x)=ax^2+bx+c is -b/2a
the y value is f(x value of vertex)
so
p(x)=-0.5x^2+40x-300
x value of vertex is -40/(2*-0.5)=-40/-1=40
max profit selling 40 per week
profit would be 500
Answer:
-8
Step-by-step explanation:
2/3(-7)+2/3(-5) = -8
Answer:
1161 ft
Step-by-step explanation:
36 ft with the triangles, 900 ft with the squares, 225 ft for the bottom square, so total is 1161 ft.
12/2, 18/3, 36/6 that is 3 equal fractions. just multiply both parts of the fraction by the same #
