Answer:
i think it is b but not sure
Step-by-step explanation:
Step-by-step explanation:
The area of a rectangle is 171 m²
Let l is the length and b is the width of the rectangle
It width is 10 m less than the length. So,
b = l-10 ...(1)
Area of a rectangle is given by :
![A=l\times b\\\\171=l(l-10)\\\\l^2-10l=171\\\\l^2-10l-171=0\\\\l^2-19l+9l-171=0\\\\\text{taking common together}\\\\l(l-19)+9(l-19)=0\\\\(l-9)(l-19)=0](https://tex.z-dn.net/?f=A%3Dl%5Ctimes%20b%5C%5C%5C%5C171%3Dl%28l-10%29%5C%5C%5C%5Cl%5E2-10l%3D171%5C%5C%5C%5Cl%5E2-10l-171%3D0%5C%5C%5C%5Cl%5E2-19l%2B9l-171%3D0%5C%5C%5C%5C%5Ctext%7Btaking%20common%20together%7D%5C%5C%5C%5Cl%28l-19%29%2B9%28l-19%29%3D0%5C%5C%5C%5C%28l-9%29%28l-19%29%3D0)
or
l = 9 m or l = 19 m
If l = 9 m,
b = 9-10 = -1 m (can't be possible)
If l = 19 m
b = 19-10 = 9 m
So, the length an the breadth of the rectangle is 19 m and 9 m respectively.
Answer:
The expectation is ![E(1 )= -\$ 1](https://tex.z-dn.net/?f=E%281%20%29%3D%20-%5C%24%201)
Step-by-step explanation:
From the question we are told that
The first offer is ![x_1 = \$ 8000](https://tex.z-dn.net/?f=x_1%20%3D%20%20%5C%24%208000)
The second offer is ![x_2 = \$ 4000](https://tex.z-dn.net/?f=x_2%20%3D%20%20%5C%24%204000)
The third offer is ![\$ 1600](https://tex.z-dn.net/?f=%5C%24%201600)
The number of tickets is ![n = 5000](https://tex.z-dn.net/?f=n%20%20%3D%20%205000)
The price of each ticket is ![p= \$ 5](https://tex.z-dn.net/?f=p%3D%20%5C%24%205)
Generally expectation is mathematically represented as
![E(x)=\sum x * P(X = x )](https://tex.z-dn.net/?f=E%28x%29%3D%5Csum%20%20x%20%2A%20%20P%28X%20%3D%20x%20%29)
given that they just offer one
Now
given that they just offer one
Now
given that they offer five
Hence the expectation is evaluated as
![E(x)=8000 * 0.0002 + 4000 * 0.0002 + 1600 * 0.001](https://tex.z-dn.net/?f=E%28x%29%3D8000%20%2A%20%200.0002%20%2B%204000%20%2A%20%200.0002%20%2B%201600%20%2A%200.001)
![E(x)=\$ 4](https://tex.z-dn.net/?f=E%28x%29%3D%5C%24%204)
Now given that the price for a ticket is ![\$ 5](https://tex.z-dn.net/?f=%5C%24%205)
The actual expectation when price of ticket has been removed is
![E(1 )= 4- 5](https://tex.z-dn.net/?f=E%281%20%29%3D%204-%205)
![E(1 )= -\$ 1](https://tex.z-dn.net/?f=E%281%20%29%3D%20-%5C%24%201)
Answer:
3.4296913278%
Step-by-step explanation:
1200-204.10 =996.9
7
204.1
x 100% = 3.4296913278% Theres probably another way to do this and im pretty sure this is correct
<span>1. 0.5 is greater, 2. A + 13c is greater, 3. the expressions are equal, 4. there is not enough information available — it depends how much greater a is than b, 5. The expressions are equal.</span>