**IF YOU WANT TO KNOW WHAT THE DIFFERENCE IS BETWEEN 80% AND 60%
80% - 60 % is the same as 80 - 60.
80 - 60 = 20
So 20% is the answer.
Answer:
x = - 6 or x = 2
Step-by-step explanation:
The absolute value function always returns a positive value. However, the expression inside can be positive or negative.
Given
| 2x + 4 | - 1 = 7 ( add 1 to both sides )
| 2x + 4 | = 8, thus
2x + 4 = 8 ( subtract 4 from both sides )
2x = 4 ( divide both sides by 2 )
x = 2
OR
-(2x + 4) = 8
- 2x - 4 = 8 ( add 4 to both sides )
- 2x = 12 ( divide both sides by - 2 )
x = - 6
As a check
Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.
x = 2 → | 4 + 4 | - 1 = | 8 | - 1 = 8 - 1 = 7 ← True
x = - 6 → | - 12 + 4 | - 1 = | - 8 | - 1 = 8 - 1 = 7 ← True
Hence the solutions are x = - 6 or x = 2
Answer:D
Step-by-step explanation:
Answer:
f(-5)=2, f(-2)=4
Step-by-step explanation:
-5<-4, so you use the first function in the piece wise function. You plug in -5 for x in 2^x+6, which gives you 2^1=2
-4<-2=2, so you use the second equation in the piecewise function. You plug in -2 for x, which gives you 2(-2+3)^2 +2, or 2(1)^2 +2 = 2 + 2 = 4
