Answer: 
+ 
+ 
+ 2
Step-by-step explanation:
f(x) = 
- 4x + 2
g(x) = 
+ 2
To find fg(x) , we have
fg(x) = f( + 2 )
The next thing is that , we will substitute + 2 for the value of x in f(x) , so we have:
- 4( + 2) + 2
which will give
+ + + 2
Therefore :
fg(x) = + + + 2
so
also, if A or B happens but not both, you add the chances and subtract the chance that both are happening.
Answer:
C
Step-by-step explanation:
Given y = amount of money spend for the long distance plan per month
and x = minutes used each month
Note these 2 plans are in per month basis.
Plan A: Flat $5 + $0.99 Per min used (variable cost)
transform into an equation:
y = 0.99x + 5
Plan B: Flat $10 + $0.79 per min used (variable cost)
transform into equation:
y = 0.79x + 10
Put these 2 equations together, will give you the answer as C.
If the lines are parallel that means the slopes are the same, therefore the slope of the line that is parallel to y=-2/5x + 4/5 is
m=-2/5
Ok so you already have the formula so basically plug in the numbers (6,7,8,9) into the equation till you find the one that makes a true statement.
2*6+2(2*6+3)= 42
do the same for the rest and you will find that 9 is the width
2*9+2(2*9+3)=60
