1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oxana [17]
3 years ago
5

Radium-226 has a half life of 1622 years. If you start off with a 200

Mathematics
1 answer:
sweet [91]3 years ago
3 0

Answer:

≈23.6 kg left.

Step-by-step explanation:

For determining this, we can simply use an exponential decay equation representing this scenario:

y= a(0.5)^{\frac{t}{h} }

a: the initial amount

t: the amount of time

h: the half life

Now, substitute the numbers into the equation:

y=200(0.5)^{\frac{5000}{1622} }

Now, solve this equation:

y=220(0.5)^{3.08}

Use a calculator to solve for y:

y= 200(0.118)

y≈23.6 kg left.

You might be interested in
Can someone help please
Sophie [7]

Answer:

33

Step-by-step explanation:

7 0
3 years ago
(10 points/I really need help) Tomas needs exactly 6 potatoes to make 12 potato pancakes?? Which of the following statements are
kirill115 [55]

The answers are A, B, and D.

The given information is that Tomas needs 6 potatoes to make 12 potato pancakes. Thus, we can assume it takes 1 potato to make 2 potato pancakes.

An answer choice must have two times more pancakes than potatoes. Only A, B, and D satisfy this. The others can be confusing if the multiplication is not executed properly.

3 0
3 years ago
Read 2 more answers
Hhiycycucucicuvuvuvu​
suter [353]

Answer:

isjsuzizwjskzkzuziziss

6 0
2 years ago
Read 2 more answers
What is the image of (−5,9) after a reflection over the y-axis?
ioda

Answer:

(5, 9 )

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

(- 5, 9 ) → (5, 9 )

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=26%20-%202%2810%20-%201%29%20%2B%20%283%20%2B%204%20%5Ctimes%2011%29" id="TexFormula1" title="
goldfiish [28.3K]

26-2\left(10-1\right)+\left(3+4\cdot 11\right)

26-(2)(9)+3+(4)(11)

26-18+3+(4)(11)

8+3+(4)(11)

8+3+44

8+47

55

"55 is correct answer".

Hope this helps!

Thanks!

-Charlie

5 0
3 years ago
Other questions:
  • 60x-5=15 <br><br> Solve for x will mark you
    12·2 answers
  • What is 1/20 in a fraction?
    5·2 answers
  • Simply 3x+8/5+4x+10/5 completely
    7·1 answer
  • Tyler has $11.25. How many tickets can he buy if the ride tickets cost $1.25 each?
    7·2 answers
  • 1. What is the equation of the line in slope-intercept form? Enter your answer in the boxes. ( First Image)
    7·1 answer
  • In a party, there are 10 pairs arriving, each consisting of a boy and a girl. Then, there is a dance, where each boy dances with
    15·1 answer
  • Tony bought a case of notebooks for his classroom priced at $8.50. If sales tax is 6%, what is the total cost after tax?
    13·1 answer
  • Hi what is the answerr??
    9·1 answer
  • A spinner has 25 congruent sections. There are 12 orange, 4 red, 6 blue, and 3 purple sections on the spinner. Which decimal rep
    13·1 answer
  • 5 - ( m - 4 ) = 2m + 3 ( m -1 )
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!