What question do you need help on?
Answer:
Every 30 years you'll have half left
After 30 years = 900 grams
after 60 years 450 grams
Step-by-step explanation:
The second option: 4x² - x + 1
All you have to do is add the like terms:
3x² + x² = 4x²
4x - 5x = -x
-2 + 3 = 1
Combine all the results and you will get your solution!
Answer:
x=-4.36
Step-by-step explanation:
Answer:
360
Step-by-step explanation:
The exterior angles always add up to 360 in a polygon because it's the sum of all the vertexes which would make a circle.
