Answer:
d.
Please give me brainliest, if you need an explanation I'll give
Step-by-step explanation:
Answer:
Step-by-step explanation:
(12-3)/2 = 9/2
(-5-3)/2= -8/2= -4
(9/2, -4)
First we find the mean (average)
(7 + 8 + 9 + 9 + 10 + 11)/6 = 54/6 = 9
now we subtract the mean from every data number....and square it
7 - 9 = -2...-2^2 = 4
8 - 9 = -1...-1^2 = 1
9 - 9 = 0....0^2 = 0
9 - 9 = 0...0^2 = 0
10 - 9 = 1....1^2 = 1
11 - 9 = 2....2^2 = 4
now we find the mean (average) for those numbers
(4 + 1 + 0 + 0 + 1 + 4) / 6 = 10/6 = 1.67...this is the variance
to find the standard deviation, take the sqrt of the variance
sqrt 1.67 = 1.29 <== ur answer
Option 2: ∠K, ∠L is the correct answer
Step-by-step explanation:
In triangles, the relationship between angles and sides is as follows
- The side in opposite to the largest angle in triangle is the largest.
- The side opposite to smallest angle in triangle is the smallest.
In the given triangle the longest side is 10 so the angle in front of this side ∠K will be the largest.
The smallest side is 6 so the angle opposite to it ∠L will be the smallest.
Hence,
Option 2: ∠K, ∠L is the correct answer
Keywords: Triangle, angles
Learn more about triangles at:
#LearnwithBrainly
