Answer:
y= 12
Step-by-step explanation:
8y x 3(-3y x 2)
By multiplying 3 inside the bracket values
= 8y x -9y x 6
By multiplying the same polynomials co-coefficients
= -72y x 6
y x 6 =72
By Shifting the negative term to the other side
y = 72/6
By dividing
y= 12
Answer:
102
Step-by-step explanation:
We have the mean (m) 128.5 and the standard deviation (sd) 8.2, we must calculate the value of z for each one and determine whether or not it is an outlier:
z = (x - m) / sd
In the first case x = 148:
z = (148 - 128.5) /8.2
z = 2.37
In the second case x = 102:
z = (102 - 128.5) /8.2
z = -3.23
In the first case x = 152:
z = (152 - 128.5) /8.2
z = 2.86
The value of this is usually between -3 and 3, therefore when x is 102 it goes outside the range of the value of z, which means that this is the outlier.
Answer:
m=1
Step-by-step explanation:
2m+7=9
subtract 7 on both sides
2m=2
divide 2 on both sides
m=1
hope it helped
Answer:28
Step-by-step explanation:
Re-arrange either ascending or descending order
20,22,28,32,33
The middle one is 28
Let's Re-arrange in descending
33,32,28,22,20
Same thing as the first step 28
