Answer:
B. 1/56
Explanation:
There are 8 different marbles. In the first draw, you have a one out of 8 chance of getting the red. In the second draw, there are 7 marbles remaining, so a one out of 7 chance of drawing a white marble. To find the total probability of drawing the red and then white marble, we multiply the probabilities if each draw.
(1/8)*(1/7)=1/56
The values for y are as follows
4.5, 4, 3.5, 3, 2.5, 2
Answer:
The minimum value of C is 20
Step-by-step explanation:
we have
----> constraint 1
----> constraint 2
----> constraint 3
----> constraint 4
using a graphing tool
The solution is the shaded area
see the attached figure
To find the minimum value of C evaluate the vertices (9,2) and (12,0) of the solution area in the objective function 
so
For x=9, y=2 ---> 
For x=12, y=0 ---> 
therefore
The minimum value of C is 20
The average rate of change between two input values is the total change of the function values (output values) divided by the change in the input values.