when coin is flipped 5 times probability is 1/2
so coin heads comes out to be 2.5
This is a binomial distribution with a probability of success = 0.5 (fair coin).
n=10
so
mean = E[x] = np =10*0.5 =5
The formula of an area of a trapezoid:
![A=\dfrac{a+b}{2}\cdot h](https://tex.z-dn.net/?f=A%3D%5Cdfrac%7Ba%2Bb%7D%7B2%7D%5Ccdot%20h)
a,b - a baseh - a height
We have:
![a=7\dfrac{1}{2}m=7.5m\\\\b=5.5m\\\\h=5.5m](https://tex.z-dn.net/?f=a%3D7%5Cdfrac%7B1%7D%7B2%7Dm%3D7.5m%5C%5C%5C%5Cb%3D5.5m%5C%5C%5C%5Ch%3D5.5m)
substitute
Answer:
![-\frac{1}{28}](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B28%7D)
Step-by-step explanation:
-1/2 ÷ 2(9+3)-4 - 3/4(8)
-0.5 ÷ 2(12)-4 - 3/4(8)
-0.5 ÷ 2(12)-4 - 6
-0.5 ÷ 24-4 - 6
-0.5 ÷ 14 = ![-\frac{1}{28}](https://tex.z-dn.net/?f=-%5Cfrac%7B1%7D%7B28%7D)
Answer:
price of oranges is 6.63
Step-by-step explanation:
1)59.53-6.49=53.04
2) 53.04/8=6.63
Answer: (-3,7)
Step-by-step explanation:
Flip the signs