X=20
measure of b is 92
measure of c is 40
Answer:
See below
Step-by-step explanation:
Calculate for the values of the terms by substituting 1 to n for 1991, 2 for 1992, 3 for 1993, and so on up to 9 for 1999.
We may opt to solve for the A for the 9 terms such as below.
n = 1.
A₁ = 0.17(1²) - 1.02(1) + 6.67 = 5.82
A₂ = 0.17(2²) - 1.02(2) + 6.67 = 5.31
A₃ = 0.17(3²) - 1.02(3) + 6.67 = 5.14
A₄ = 0.17(4²) - 1.02(4) + 6.67 = 5.31
A₅ = 0.17(5²) - 1.02(5) + 6.67 = 5.82
A₆ = 0.17(6²) - 1.02(6) + 6.67 = 6.67
A₇ = 0.17(7²) - 1.02(7) + 6.67 = 7.86
A₈ = 0.17(8²) - 1.02(8) + 6.67 = 9.39
A₉ = 0.17(9²) - 1.02(9) + 6.67 = 11.26
The sum of these values is $62.58. The answer is not among the choices.
Answer:
Step-by-step explanation:
The formula of a volume of a sphere:
R - radius
We have the volume V = 457.3 in³. Substitute:
Answer:
The significance level of difference in fhe two means is indeed 0.26.
Step-by-step explanation:
To obtain the significance level, just standardize the mean in 2012 with the new mean and standard deviation.
The standardized score (z) is the value (x) minus the mean (xbar) then divided by the standard deviation (σ)
z = (x - xbar)/σ = (49007 - 49800)/3100 = - 0.26
Therefore, the significance level of difference is indeed 0.26.