Algebraic expression means Letter Can stand for numbers. Ex: 2y+5 and Y=10
Answer:
6 hours.
Step-by-step explanation:
since the boat house charges 7 dollars we can subtract that from 43
43-7=36
since we have 36 left and the fee per hour is 6 we can devide
36÷6=6
Answer: 0.92
Step-by-step explanation: cos a = side adj / hypotenuse
Cos a = 12/13 ~ 0.92307
Answer:
The advertisement should use 16 minutes.
Step-by-step explanation:
Exponential distribution:
The exponential probability distribution, with mean m, is described by the following equation:

In which
is the decay parameter.
The probability that x is lower or equal to a is given by:

Which has the following solution:

The probability of finding a value higher than x is:

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.
This means that 
What number of minutes should the advertisement use?
The values of x for which:

So






Rounding to the nearest number, the advertisement should use 16 minutes.