Step-by-step explanation:
a,b) you can place all 17 in the middle and both circle will have 17 each. then remove 2 and place one each on separate sides. you can do this 8 times so that at the you'll end up with 1 in the middle and 8 each on separate sides.
the ways to do is then 9.
Answer:
6.25 grams
Step-by-step explanation:
Since we need to find the number of half-lives in 26.3 years, we simply divide 26.3 yrs by 5.26 yrs which yields 5 half-lives. This means that in 26.3 yrs the 200 grams of cobalt-60 will undergo 5 half-lives.
To obtain the remaining amount we simplify the expression;
A = 200*(1-0.5)^(26.3/5.26)
= 200*(0.5)^(5)
= 6.25 grams.
Therefore, the amount of a 200 g sample of colbalt-60 that will remain after 26.3 years is 6.25 grams
Answer:
The correct answer is y=-0.004x^2+0.415x-0.546
Step-by-step explanation:
Fiddling on Desmos Graphing Calculator got me the answer.
Answer: 30 more servings
Explanation:
They had 90 tablespoons, but half are gone. 90/2 = 45
Each serving is 1.5 tablespoons.
45/1.5 = 30 more servings