Answer:
hi i need points and i dont know what to write i hope you have a great day or night :)
Step-by-step explanation:
Multiply both sides by two to get how many cents oranges cost per kilogram. If 50 cents = 1 kg of oranges, then 400 cents = 8 kg of oranges.
So it's really easy to do this
4 times 2 is 12 and then time 10 degree
=12 times 10 degree
=120 degree
As long any understand that you don't have to change or do anything with the degree and just multiply the numbers .
I hope it helped u
Answer: 30g
Step-by-step explanation:
In this question (t½) of isotope is 40 days, which means that after 40 days half of the sample would have decayed and half would be left as it is.
After 40 days ( first half life) 240 /2 = 120 g decays and 120 g remains left.
After another 40 days ( two half lives or 80 days) 120 /2 = 60 g decays and 60 g remains left .
after three half lives or 120 days, 60/2 = 30g decay and 30 g of the isotope will be left.
7a)
If n is the amount of sides then there's 38 sides in a polygon with 665 diagonals
7b)
We do the same as 7a) but with 406. We get that 
and 
. A polygon cant have 30.04 sides
