It’s A
As it says in the answer, you usually add / subtract the exponents when needed.
Answer:
y=-1
Step-by-step explanation:
- Since we see an overlap, the line must cross through the original image.
- We can solve the equation of the line of reflection by realizing there is no slope because the reflection is parallel to the x-axis.
Answer:
x= 22.5
Step-by-step explanation:
Answer:
34
Step-by-step explanation:
1. if to guess the Caleb's age is 'x' years and Linda's age is 'y' years now, then
2. according to the 'sum of the ages of Caleb and Linda is 55 years' it may be written: x+y=55 - the first equation of the system;
3. according to the condition '8 years ago, Caleb's age was 2 times Linda's age' it may be written: (x-8)(y-8)=2 - the second equation of the system;
4. if to make up the system of two equation and calculate the values of 'x' and 'y':
5. if x=34, then Caleb is 34 old now.
