Answer:
Step-by-step explanation:
Note that if you combine the two equations in this SYSTEM, you get the (true) equation 0 = 0. Thus, there are infinitely many solutions.
Answer:
41.92%
Step-by-step explanation:
In table attached standard normal distribution curve is shown.
Data
mean, µ = 4.3 minutes
standard deviation, σ = 0.5 minutes
desired point, x = 5 minutes
x-axis, Z = (x - µ)/σ
The probability that calls last between 4.3 and 5.0 minutes is equivalent to find the area below the curve between Z = 0 and Z = (5 - 4.3)/0.5 = 1.4, which is 0.4192, or 41.92%
Answer:
First i tough 8.5, but then realized the 2's
would go for 17
1+4x because the product of 4 and the number x is 4x and u just add that to one