12^2 +b^2 = 20^2 because of the Pythagorean theorem
144 + b^2 =400
B^2 =256
B=16
240 days is 4 times the half-life, which means that a sample of 1000 mg will decay to

after 240 days.
Answer:
z = 18
Step-by-step explanation:
Given: ⅔z + 1 = 13
Subtract one from both sides: ⅔z = 12
Multiply both sides by the inverse of 2/3, which is 3/2: z = 18
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Answer: m=-3
Step-by-step explanation: I know okie i jast want points
Answer:
6 divided by 4=6/4 (bottom left)
Step-by-step explanation:
You're dividing a 6 meter area into 4 parts, so you're dividing 6 by 4 (6/4 m)