radium has a half life of 1660 years. If the initial amount of radium is 200 grams, how much will remain in 500 years?
Answers
Amount remaining = (200) x (2)^-(500/1660)
= (200) x (2)^-(0.3012)
= (200) x (0.8116) = 162.3 grams (rounded)
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According to the Rational Root Theorem, what are all the potential rational roots of f(x) = 9x4 – 2x2 – 3x + 4?
Gender: Grade 9 Grade 10 Grade 11 Grade 12Male: 53 19 27 37 Female: 31 42 50 61 What percentage of females are in grades 11 and 12? Round to the nearest percent. 27% 35% 60% 67%
Answers
Answer:
3:4
Step-by-step explanation:
18:24
=
3:4
Answers
Answers
Answer:
whats the question?
Step-by-step explanation:
Answer:
n=4
Step-by-step explanation:
To write this equation, we know that five more than n equals 5. The word "more" implies we are adding. So we can write n+5=9 as our equation. We need to isolate the variable, so we get only n on one side. So we subtract 5 from each side to isolate. 9-5=4. So our new equation is n=4. This is also our answer!
I hope this has helped you!
Answers
Answer:
The required inequality is x > 3.9
Step-by-step explanation:
Consider the provided information.
The closed circle means that the set contain that extreme.
For closed circle we use the inequality "≤" or "≥"
The open circle means that the set does not contain that extreme.
For open circle we use the inequality "<" or ">"
Here, it is given that the graph has an open circle, therefore the required inequality should be "<" or ">"
If the ray moves right, in the usual notation, the real numbers increase to the right, if it moves to left the real numbers decreases.
It is given that the ray moves to right that means the set of numbers bigger than 3.9, that does not contain the number 3.9
Hence, the required inequality is x > 3.9
Where x is any number greater than 3.9.
A. 50 miles
B. 90 miles
C. 100 miles
D. 120 miles
Answers
stars cost is 35+price for driving
price for driving=cost per mile times number oof miles
starts=35+0.25x
express is 17+0.4x
when will prices be equal?
set eaqual to each other
35+0.25x=17+0.4x
subtract 0.25x from both sides
35=17+0.15x
subtract 17 from both sides
18=0.15x
divide both sides by 0.15
120=x
answer is 120 miles
answer is D
Answer:
the answer is "D"
Answers
SE = sqrt ( x(n-x)/n^3 )
Substituting the given values:
SE = sqrt ( 78(100-78)/100^3)) = 0.04
the answer is A on plato