Answer:
Step-by-step explanation:
The number of items sold that gives the max profit is found in the vertex of this quadratic, (h, k). Lucky for us we have a formula for k that will give us exactly what we are looking for, and nothing else.
where a = -.5, b = 50, and c = -300:

The max profit is $950 per week
I hope this helps you
x.6x+x.1-7.6x-7.1
6x^2+x-42x-7
6x^2-41x-7
Answer:
1st= 47/7 or 6.71
2nd= 48/7 or 6.857
Step-by-step explanation:
1st number =X and 2nd number = Y
According to question, X+7=2Y
20+Y=4X
X=2Y-7 (from 1st condition)
putting in it second
20+Y=4(2Y-7)
20+Y=8Y-28
20+28=8Y-Y
48=7Y
Y=48/7
so X=2(48/7)-7
=96-49/7
47/7
The answer is D. meter, second
You would want to measure the speed with distance/time, and D is the only answer with both a distance measurement and a time measurement
Answer:
meh
14fri
Step-by-step explanation: