I believe the problem ask for s which is the standard
deviation. We must recall that the formula for z statistic is stated as:
z = (x – x over bar) / s
Where,
z = z statistic = 2.5
x = sample value or sample score = 102
x over bar = the sample mean or sample average = 100
s = standard deviation = unknown
Rewriting the equation in terms of s:
s = (x – x over bar) / z
Substituting the given values into the equation:
s = (102 – 100) / 2.5
s = 0.8
Therefore the standard deviation s is 0.8
Supplements add up to 180°
so just subtract 164 from 180
180
<u>-164
</u> 16
Answer:
y = 9
Step-by-step explanation:
The triangle is a 45-45-90 triangle. The legs are congruent, therefore y = 9
Perpendicular means that you will flip and change sign in this case we have -3 when we flip it and change sign we will get 1/3
So,
First we have to find b:
2=1/3(3)+b
2=1+b
1=b
Second you just write your equation:
Y= 1/3x + 1
Hope it help sweetheart!!
