40.7..........................
34:2 or 34 to 2
Hope this helps!❣️
Answer:
8+7
Step-by-step explanation:
Absolute value is when you calculate how far away the number is from zero.
Since 8 is 8 spaces away from zero, then the absolute value of 8 is 8.
Since -7 is 7 spaces away from zero, then the absolute value of -7 is 7.
So, in conclusion, an equivalent expression can be 8+7
Solution :
Given data :
20.1 33.5 21.7 58.4 23.2 110.8 30.9
24.0 74.8 60.0
n = 10
Range : Arranging from lowest to highest.
20.1, 21.7, 23.2, 24.0, 30.9, 33.5, 58.4, 60.0, 74.8, 110.8
Range = low highest value - lowest value
= 110.8 - 20.1
= 90.7
Mean = 



Sample standard deviation :





S = 29.8644
Variance = 

= 891.8823
Answer:
Perpendicular (A)
Step-by-step explanation:
First find the gradient of the first line:
Change in y/ Change in x = -7-(-2)/ -9-(-12) = -5/3
Now find the gradient of the second line:
9-6/1-6 = -3/-5 = 3/5
When we multiply the gradient of two perpendicular lines we will get:
m1 x m2 = -1
If we multiply 3/5 and -5/3 we will get -1
Therefore it is perpendicular!