10. A 11. D 12. A (wasn’t too sure about question 12)
Radius of 1 button = r = 3x
Fabric required to cover 1 button = Area of the circle
= 
= 
= 
Total number of buttons = x
Fabric required to cover 1 button =
Fabric required to cover x buttons = 
Hence, fabric required to cover x buttons
sq. units
Answer: 0.0023
Step-by-step explanation:
Let X be the binomial variable that represents the number of receipts will show that the above three food items were ordered.
probability of success p = 32% = 0.32
Sample size : n= 10
Binomial probability function :
Now, the probability that eight receipts will show that the above three food items were ordered :

hence, the required probability = 0.0023
Answer:
0.5, 3/5, 0.78
Step-by-step explanation:
Answer:
The slope is 1/3
Step-by-step explanation:
The equation is written in slope-intercept form. This is shown as y=mx+b where m is the slope and b is the y-intercept.
m is 1/3 because of this
Hope this made sense!