The temperature increased 17 degrees.
to add the difference of a negative and positive number, i added the absolute value of -4 (4) to the larger number (13) and got 17
Answer:
Third one: 2(2a-3b+c)+c
Step-by-step explanation:
Hope this helped:)
First lets rearrange the formula to solve for half-life.
The half-life is the time it takes for half of the element to decay.
So now we need to find "r" which is the rate of decay.
If we rearrange formula to solve for r:
Substituting this into equation for half-life, you get: