Domain : everything
Range : -3
I see this as the difference in their current years is 12, and the difference between the number of years they both age in human years is 3, so after 4 human years they become the same age.
Answer:
~THIS IS DEFINITELY INCORRECT~
This may be incorrect, I tried solving the sum.
All done on the calculator with cleared variables.
2sin(8x) = 0
cos(5x) = 1
|f(a)| , the vertical lines mean absolute value. Absolute value is the positive value of the answer whether it is actually negative or positive.
F(a) is given as -5, so the absolute answer would be 5
The answer is 5
Sam was at the mall for about 4 hours 25 minutes
