Answer:
The first one is right and the second one is A
Step-by-step explanation:
Answer:
s = [(4-6)^2 + (7-6)^2 + (4-6)^2 + (10-6)^2 + (5-6)^2] / 5
Step-by-step explanation:
Given the data:
Number of miles biked each day:
X = 4, 7, 4, 10, 5
The mean of data :
Mean(m) = (sum of X) / n
Where n is the number of observations or days
m = (4 + 7 + 4 + 10 +5) / 5
m = 30 / 5
m = 6
The variance of the data (s):
s = [Sum of (x - m)^2] / n
s = [(4-6)^2 + (7-6)^2 + (4-6)^2 + (10-6)^2 + (5-6)^2] / 5
Where s = variance, m = mean, x = data values
Since it's 10 to the 2nd power, you just move the decimal places 2 places to the right.
So the answer is 3460
The answer would be 15
30 divided by 2
if it’s wrong I’m so sorry.
Answer:
(A)Z(-3,-7)
Explanation:
The rotation of a point (x,y) by 180 degrees gives the point (-x,-y).
That is:
If the image point after rotation is (3,7), the coordinates of the pre-image will be:
The correct option is A.
