Answer: A
Step-by-step explanation:
2.46/6 = .41
Answer:
The standard deviation of the sample mean is
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
The sample size is 
Generally the standard deviation of the sample mean is mathematically represented as

substituting values


Answer: Equation: 0.5*30*b = 210
Base length: 14
Step-by-step explanation: The formula of the area of a triangle is 1/2*b*h, so we can use that and the information given to make a formula then solve.
Answer:
(x+10)/2
Step-by-step explanation:
interchange the variables x and y
x=2y-10
solve for y
y=x+10/2
Answer:
(x - 4, y + 3)
Step-by-step explanation:
This is because when you follow the movement of the individual points you can see that they have moved 3 spaces up which is shown as y + 3, and they have moved 4 spaces to the left which is shown as x - 4