The seating arrangement varies based on whether n is odd or even. Step-by-step explanation: Each subsequent row has two fewer seats than the row before. In an arithmetic progression, the formula for the sum of n terms is used, where a denotes the first term, d is the common difference, n signifies the total terms, and l represents the last term. When n is odd, the sequence can be represented by n, n-2, n-4,..., culminating in 1. Conversely, if n is even, the sequence begins at n, running down to 2. The total seating for both cases can then be calculated based on their respective sequences.
To convert £280 at the post office exchange rate of £1=€1.17, you calculate: 1£: 1.17€ = 280£: x. Thus, x = 1.17 * 280, giving us x = 327.6 €. Verification shows this calculation is sound.
To tackle this issue, we need to utilize the t statistic. This requires calculating the t score first and then consulting standard distribution tables to find the corresponding p value based on the obtained t score.
The formula for calculating the t score is:
t = (x – μ) / (σ / sqrt(n))
Where,
x = sample mean = 40
n = number of sample subjects = 16
s = standard deviation = 20
μ = Population Mean = 30
Plugging in the known values:
t = (40 – 30) / (20 / sqrt 16)
t = 10 / 5
t = 2
Utilizing the standard distribution tables and calculating the degrees of freedom, which is n – 1 = 15, we then find:
p = 0.032
1. 200% =2
5000 multiplied by 2 equals 10000
2.50% = 0.5
10000 multiplied by 0.5 equals 5000
Option D is indeed correct, as it ensures that the post's point is equidistant from the ground, maintaining a perpendicular angle at two points on the surface.
