Answer:
Step by step explanation
E[y]=∑yp(y)=4(0.176)+(−1)(0.824) =−.12 dollar, so In one play the player is expected to lose 12% of a dollar.
Answer:
- 6x / 5
Explanation:
Multiplicative inverse is the negative reciprocal of a fraction.
In order for two lines to be perpendicular, their gradients must multiply together to get -1
7*b=-1
7b=-1
Divide both sides by 7
So, the gradient of line b is -1/7
Answer:

Step-by-step explanation:
3 hours is equivalent to 180 minutes (found by multiplying the number of hours, 3, by the number of minutes in an hour, 60).
Therefore, the fraction of 3 hours that 25 minutes represents is
, which can further be simplified to
.