Answer:
$2.56
Step-by-step explanation:
P(7 or 11) = 8/36 = 2/9
P(winning 20-2 = 18) = 2/9
P(2 or 12) = 2/36 = 1/18
P(winning 2-2 = 0) = 1/18
P(others) = 26/36 = 13/18
P(winning 0-2 = -2) = 13/18
Expected win
= 18(2/9) + 0(1/18) - 2(13/18)
= $23/9 or $2.56
1.12 divided by 12 times three. In that order.
Answer:
15.01
Step-by-step explanation:
7×tan65=15.01 hopefully this help
9in,12in,13in
Step-by-step explanation:
9in,12in,13in
Step-by-step explanation:
This equations are quadratic equations, which is on standard form,
![{ax}^{2} + bx + c](https://tex.z-dn.net/?f=%20%7Bax%7D%5E%7B2%7D%20%20%2B%20bx%20%2B%20c)
where a is the leading coefficient, b is the second coefficient, and c is the constant.
Both a and b are in quadratic equation so we need to find the constant separately.
Both sides are equal to zero so we can just subtract the terms not containing a or b in them to the opposite side.
![{x}^{2} - 4 x + a = 0](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-%204%20x%20%2B%20a%20%3D%200)
![{x}^{2} + a = 4x](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%20a%20%3D%204x)
![a = - {x}^{2} + 4x](https://tex.z-dn.net/?f=a%20%3D%20%20-%20%20%7Bx%7D%5E%7B2%7D%20%20%2B%204x)
For b,
![2 {x}^{2} - 6x + b + 7 = 0](https://tex.z-dn.net/?f=2%20%7Bx%7D%5E%7B2%7D%20%20-%206x%20%2B%20b%20%2B%207%20%3D%200)
![- 6x + b + 7 = - 2 {x}^{2}](https://tex.z-dn.net/?f=%20-%206x%20%2B%20b%20%2B%207%20%3D%20%20-%202%20%7Bx%7D%5E%7B2%7D%20)
![b + 7 = - 2 {x}^{2} + 6x](https://tex.z-dn.net/?f=b%20%2B%207%20%3D%20%20-%202%20%7Bx%7D%5E%7B2%7D%20%20%20%2B%206x)
![b = - 2 {x}^{2} + 6x - 7](https://tex.z-dn.net/?f=b%20%3D%20%20-%202%20%7Bx%7D%5E%7B2%7D%20%20%2B%206x%20-%207)