Answer:
The answer is the option B, which is: 46 degrees.
The explanation for this problem is shown below:
1. According to the Law of reflection, the angle of incidence is equal to the angle of reflection.
2. Therefore, if Ф1 is the angle of incidence and Ф2 is the angle of reflection, you have:
Ф1 = 46 degrees
Ф1 = Ф2
Ф2 = 46 degrees
So, the answer is the option mentioned before.
Answer:
Step-by-step explanation:
The system would be:
And I attached the graph. The system will have 2 solution (The 2 intercepts between the curves)
Answer:
The interpretation is that we are 90% sure that the true average salary of the district is in this interval.
Step-by-step explanation:
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
In this question:
The 90% confidence interval for the average salary of the district is [41500,49750].
This means that we are 90% sure that the true average salary of the district is in this interval.
Answer:
1/4
Step-by-step explanation:
8/8=1
6/8=3/4
4/8=2/4
2/8=1/4
Step-by-step explanation:
it's 22 due to the sum all the 2 smallest sides bigger than the biggest
