Write and solve the appropriate exponential equation:
228 = 16(r)^4, where r is the change per hour in the number of bacteria:
228
------ = r^4 = 14.25.
16
Taking the fourth root of both sides, we get: r = 1.94 (answer)
Answer: 20
Step-by-step explanation:
Formula to find the sample size : 
Given : Significance level : 
Critical value : 
Margin of error : 
Standard deviation: 
Then, we have

Hence, the minimum sample size must be 20.
Answer:
True
Step-by-step explanation:
We actually can use Sine, Cos, or Tangent to solve for the angles, which would give the angle, but graphing it came up with an Obtuse Scalene triangle.