Answer:
12950 feet or about 2.45 miles
Answer:
option A) that is 20a^3 b^3
Step-by-step explanation:
Given in the question the equation,
(a+b)^6
Formula for binomial expansion up to 4th term of (a+b)^6)
1st term 2nd term 3rd term 4th term
6C0 (a)^6(b)^0 + 6C1 (a)^5(b)^1 + 6C2 (a)^4(b)^2 + 6C3 (a)^3(b)^3 + ....
Hence, the 4th term in the binomial expansion of (a+b)^6 = 6C3 (a)^3(b)^3
= 20 (a)^3(b)^3
Answer:
a) X has a mean of 25 and a variance of 8.
b) The probability that the total weight X is between 22 and 28 oz is 0.711.
Step-by-step explanation:
We have to calculate the mean and variance of a sum of random normal variables.
We can apply the rule for mean and variance for sum of independent variables:

Then, the mean and variance of X is:

We can calculate the probability that X is between 22 and 28 as:

100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150,...
Answer:
Part A = 64 feet
Part B = 79 feet
Step-by-step explanation:
Part A
10 × 2 = 20 = Diameter
Formula is C = π × diameter
20 × π = 62.8318530718 feet = 64 feet
Part B
25 × 2 = 50
Same formula
50 × π = 157.079632679 feet
157.079632679 ÷ 2 = 78.5398163395 feet = 79 feet
divide by 2 because it is a semi circle
Hope his helped :)