Answer:
$621
Step-by-step explanation:
-Profit is the net amount after deducting the total expenses from the sales revenue realized.
-Wally's expenses are:
-Wally's sales revenue is:
The profit made is therefore calculated as:
Hence, Wally's profit last year was $621
Answer:
Step-by-step explanation:
Let x be the random variable representing the number of miles that each person walked each day for 6 months. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
For Rueben,
µ = 5
σ = 1.1
the probability that Rueben walked more than 6.1 miles is expressed as
P(x > 6.1) = 1 - P( x ≤ 6.1)
For x = 6.1,
z = (4 - 6.1)/1.1 = - 1.91
Looking at the normal distribution table, the probability corresponding to the z score is 0.02807
P(x > 6.1) = 1 - 0.02807 = 0.97193
P(x > 6.1) = 0.97 × 100 = 97%
For Victor,
µ = 4.4
σ = 1.4
the probability that Victor walked less than 5.8 miless is expressed as
P(x < 5.8)
For x = 5.8,
z = (5.8 - 4.4)/1.4 = 1
Looking at the normal distribution table, the probability corresponding to the z score is 0.8413
P(x < 5.8) = 0.84 = 84%
Answer:
tax
Step-by-step explanation:
Answer:
Yes that is the right answer
Answer:
The family of directions of the given vector is represented by , .
Step-by-step explanation:
According to the given information, vector stands in the 4th Quadrant (, ) and direction of the vector () in sexagesimal degrees, is determined by following definition:
,
Please notice that angle represents a function with a periodicity of 360°.
If we know that and , then the direction of the vector is:
The family of directions of the given vector is represented by , .