Hi
ab - c =9
Solve for c
-c = 9 - ab
Divide both sides by -1
-c/-1 = 9-ab/-1
c = -9 + ab
Good luck !
4x−5=7+4y
subtract 7 from both side
4x - 5 -7 = 4y
4x -12 = 4y
divide by 4
4x/4 -12/4 = 4y/4
x-3=y
Answer: chi square test goodness of fit
Step-by-step explanation:
Is used to investigate whether or not there is a significant difference between a distribution generated from a sample and a hypothesize population distribution
Remark
Not many per square mile. Sounds like an ideal place to live.
Step One
Find the number of Square Miles.
Area = Height * Width
Area = 380 * 200
Area = 76,000 square miles.
Step Two
Find the Density
<u>Formula</u>
Density = Population / Square Miles
Population = 814,000 people
Square miles = 76000
Solve
Density = 814000/76000 = 10.7 people per square mile.
Remark
Isn't that incredible. It means if all the Area of South Dakota were given to the people living there, each family of 4 would get roughly 1/2 a square mile.
A. yes...the data is a function because for every x value, there is only one y value.
B. f(x) = 3x - 10...when x = 8
f(8) = 3(8) - 10
f(8) = 24 - 10
f(8) = 14
the table : wen x = 8, y = 4
f(x) = 3x - 10 has a greater value
C. 80 = 3x - 10
80 + 10 = 3x
90 = 3x
90/3 = x
30 = x