Answer:
rotation
Step-by-step explanation:
Answer:
f(x)=-3x+14
Step-by-step explanation:
we have
y+1=-3(x-5)
Isolate the variable y
Distributed right side
y+1=-3x+15
Subtract 1 both sides
y=-3x+15-1
Combine like terms
y=-3x+14
Convert to function notation
Let
f(x)=y
f(x)=-3x+14
If something is to the power of 1/2, it is the same as the square root of that number. So, what's the square root of 49?
Answer:
20.92
Step-by-step explanation:
Given the data:
X : 170, 160, 130, 165, 125
Standard deviation (s) :
s = √Σ((X - m)² / n)
m = mean
n = sample size
Mean , m = Σx/n
m = (170 + 160 + 130 + 165 + 125) / 5
m = 750/5
m = 150
((X - m)² / n - 1)
[(170-150)^2 + (160-150)^2 + (130-150)^2 + (165-150)^2 + (125-150)^2] / (5-1)
= 1750 / 4
= 437.5
s = √437.5
s = 20.9165
s = 20.92
