I think the answers are 1/4, 1/4, and 1/2
Answer:
20 grams will be left.
Step-by-step explanation:
Half-life is 11 days
This means that in each 11 days, you lose 50% of the amount.
33 days
33/11 = 3 half-lifes.
You start with 160 grams
After 11 days: 160/2 = 80 grams
After 22 days: 80/2 = 40 grams
After 33 days: 40/2 = 20 grams.
20 grams will be left.
Answer:
positive linear association
Step-by-step explanation:
Answer:
1. (2x^2+x-1)
Step-by-step explanation:
expanding (2x^2-1)^2. multiplying (x-2) (1-2x)
= 4x^2-4x+1. = x-2x^2-2+4x
= -2x^2+5x-2
(4x^2-4x+1-2x^2+5x-2)
=2x^2+x-1
answer:
a = 15
b = 84
c = 81
steps
a+b+c=180
b=3a+39
c=a+66
a+3a+39+a+66=180
5a + 105 = 180
5a = 75
a = 15
b=3a+39
b=3(15)+39
b=45+39
b=84
c=15+66
c=81
https://www.wyzant.com/resources/answers/292883/i_don_39_t_get_how_to_put_it_into_a_formula