The answer is 39.470 because 39.472 is far from 39.450 and it’s 2 numbers passed 39.470.
Answer:
The answer is below
Step-by-step explanation:
a) For a normal model the sample size has to be equal or greater than 30 so that it can be a normal distribution.
b) Given that:
μ = 11.2 minutes, σ = 4.8 minutes, n = 45
The z score determines how many standard deviations the raw score is above or below the mean. It is given by:
For x < 10 minutes
Therefore from the normal distribution table, P(x < 10) = P(z < -1.68) = 0.0465
Answer:
0.19
Step-by-step explanation:
12u->2.28
1u-> 2.28 /12
=0.19
Answer:
3.1 inches
Step-by-step explanation:
Area of the cookie =Pi r^2
Pi = 3.14
Diameter = 2inches
Radius r = diameter/2 = 2/2
= 1
Therefore
Area = 3.14 x 1^2
= 3.14 x 1 x 1
= 3.1 inches
Answer:
The expression provided by the area (square meters) is given by: .
Step-by-step explanation:
The area of the algae colony is a function of the radius r (meters), so .
The radius of the circle formed by the algae colony is a function of time t (in minutes), so . So,
[Substituting the expression for radius]
Then the expression provided by the area (square meters) is given by: .