Answer:
A. This conclusion was drawn using the law of detachment
Step-by-step explanation:
Definition:
Law of Detachment
If p equals q and p is also true. Then q is true.
if a number is a whole number, then it is an integer.
3 is a whole number (true statement) , so it 3 is an integer. (must be true)
Answer:
Mean = 30.68
Standard deviation = 6.095
Two standard deviations above the mean = 42.87
Step-by-step explanation:
Given the following data :
21; 21; 22; 23; 24; 24; 25; 25; 28; 29; 29; 31; 32; 33; 33; 34; 35; 36; 36; 36; 36; 38; 38; 38; 40
Mean = Σ(x) / n
n = 25
Σ (X) = 767
Mean (m) = 767 / 25
Mean (m) = 30.68
Standard deviation : sqrt[Σ(x - m) / n]
Using a calculator :
Standard deviation = 6.095 ( 2 decimal places)
2 standard deviations above the mean :
Mean + 2(standard deviation)
Mean + 2(6.095)
30.68 + 12.19
30.68 + 12.19
= 42.87
Answer:
1.
B swap the order of equation
2. yes, they are equivalent and yes, they give same solution
Step-by-step explanation:
Use inverse to solve this problem. Cos-1(2/5)=66.421=66.
