I believe it is C because it I s bigger but not to big of a amount please tell me if I am wrong
After paying 4 tolls, Tony will have 4×$1.25 = $5.00 less change in his car. At that point, he will have $1 in change. The appropriate choice is
graph of line going through (0, 6) and (4,1)
Answer:
Expected time is 15 hours for him to get to safety.
Step-by-step explanation:
We define X as the time that this miner would get to safety.
We define Y as the door he chooses initially.
P(Y= 1) = P(Y=2)=P(Y=3) = 1/3
We have E[X|Y=1] = 3
E[X|Y] = 5 hours + E[X}
E[X|Y] = 7 hours + E[X]
Then we have
E[X] = 1/3(3 + 5 + E[X] + 7 + E[X])
We cross multiply
3*E[X] = (15 + 2E[x])
3E[X] - 2E[X] = 15
E[X] = 15
So the time it would take to get him to safety is 15 hours
Answer:
x/100 x 8 = 6
8x/100 = 6
x100 x100
8x = 600
Divide by 8 on both sides:
X = 75
Consider a percent out of 100. 'Of' meaning multiplication. 'is' meaning equal to that number.
(unknown number/percent)x/100 x 8(of 8) = 6(is 6)
Answer:
x^2 + 8x + 16
Step-by-step explanation:
Given length of square x + 4.
Area of square with side S is given by
.
Therefore are of square with side x + 4 is given by ![(x + 4)^2](https://tex.z-dn.net/?f=%28x%20%2B%204%29%5E2)
Area of square = ![(x + 4)^2\\=>(x + 4)*(x + 4)\\=> x(x + 4) + 4(x + 4)\\=> x^2 + 4x + 4x + 4*4\\=> x^2 + 8x + 16](https://tex.z-dn.net/?f=%28x%20%2B%204%29%5E2%5C%5C%3D%3E%28x%20%2B%204%29%2A%28x%20%2B%204%29%5C%5C%3D%3E%20x%28x%20%2B%204%29%20%2B%204%28x%20%2B%204%29%5C%5C%3D%3E%20x%5E2%20%2B%204x%20%2B%204x%20%2B%204%2A4%5C%5C%3D%3E%20%20x%5E2%20%2B%208x%20%2B%2016)
Thus, x2 + 8x + 16 expression represents the area of a fabric square.