To find the critical points, first we derivate the function:
dy/dx has roots x = 0 and x = -5/6.
When x < -5/6, we can check that dy/dx is negative. When -5/6 < x < 0, we can check that dy/dx is positive. And, when x > 0, we can check that dy/dx is also positive.
Therefore, y is increasing when x > -5/6 and decrasing when x < -5/6. y has inflection points at x = -5/6 and x = 0
Answer:
r = 0.05 or 5%
Step-by-step explanation:
3450 = 3000 + (3000 · r · 3)
450 = 9000 · r
450/9000 = r
r = 0.05 or 5%
Answer:
8n
Step-by-step explanation:
The product of n and 8 means you will multiply n and 8. So, n x 8 is 8n.
You are to calculate the # of students, based upon the starting volume of juice and the amount each student receives.
22 1/2 cups
This # of students is equal to ------------------------------
[1 1/4 cup / student ]
and this could be found easily by dividing 22.5 by 1.25: 18. There are 18 students.
