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:
m∡P = 80°
Step-by-step explanation:
Because ABC = MPN, m∡B = m∡P. Therefore, m∡P = 80°.
Meal cost $ 21.62
plus 9% tax = $21.62 * 1.09 = $ 23.57
meal & tax = $ 23.57 plus17% tip = $ 23.57 * 1.17 = $ 27.58
Total cost $ 27.58
Answer:
Step-by-step explanation:
hair growth is the bottom one y + 3x
total area is the top one y = 3x²
bacteria is the middle one y = 3ˣ
The coordinates of the second point are (2, 4).
The midpoint formula is:

Substituting our information, we have:

This means that

Multiply both sides of both equations by 2 to cancel it:

This gives us our coordinates (2, 4)