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
Nutka1998 [239]
2 years ago
10

Solve the problem. The half-life of plutonium-234 is 9 hours. If 50 milligrams is present now, how much will be present in 6 day

s? (Round your answer to three decimal places.) 1) 31.497 2) 16.494 0 3) 0.492 4) 0.001
Mathematics
1 answer:
MaRussiya [10]2 years ago
3 0

Answer:

  4)  0.001

Step-by-step explanation:

The amount (a) present in h hours is ...

  a(h) = (initial value)×(1/2)^(h/(half-life))

6 days is 6×24 hours, so the amount remaining is ...

  a(6×24) = 50×(1/2)^(6×24/9) = 50/2^16 ≈ 0.001 . . . . milligrams

You might be interested in
The domain of both f(x) = x - 6 and g(x) = x + 6 is all real numbers. What is the domain of h(x) = ?
dolphi86 [110]
The denominator of a fraction cannot be zero.Therefore in h(x) = f(x)/g(x), g(x) cannot equal zero, x + 6 cannot equal zero, x cannot equal -6. The domain of h(x) is ℜ - {-6}.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
4 0
3 years ago
Can some help me out with this EXTRA POINTS!!
Butoxors [25]

Answer: ≈ 185.73009

Step-by-step explanation:

area of square: length^{2}

area of circle: \frac{radius^{2} * \pi }{y}

length: 15

radius = diameter/2

radius: 5

area of square - area of circle =  area between square and circle:

15^{2} - \frac{5^{2} * \pi }{2} = 225 - \frac{25\pi}{2} ≈ 185.73009

hope it helps!

Please mark as brainliest.

8 0
2 years ago
Stacy earned $129.55 last week. Dave earned $127.95 last week. Carlos earned $127.05
noname [10]

Answer:

The total earnings is $384.55

The least earnings is

$127.05

$127.95

$129.55

5 0
3 years ago
Simplify 8i^6+6i^5-5i^3-3i^2-7i-9<br><br> A) -14+4i B) -4+4i C) -10i D) -14-18i
kipiarov [429]
The answer is A) -14 + 4i. God bless!
7 0
3 years ago
Read 2 more answers
Which of the following is an even function? A.f(x) =(x-1)^2 b. F(x)=8x c.f(x) =x^2-x d.f(x)=7
pentagon [3]

Answer:

Step-by-step explanation:

A.f(x) =(x-1)^2  is even because of that even exponent, 2.

b. F(x)=8x  is odd because x has the exponent 1.

c.f(x) =x^2-x   is neither even nor odd

d.f(x)=7    is even because the exponent is even:  7^0

4 0
2 years ago
Other questions:
  • The perimeter of the rectangular shaped building is 960 feet. The shortest side of the building is 150 feet. What is the length
    13·1 answer
  • I will give brainliest to the best answer to this question: Each year, the Department of Water Works measures the chloride conce
    13·2 answers
  • the number of baseball games bernie won this year was 25% less than the number of games he won last year. If Bernie won 24 baseb
    12·1 answer
  • Colby wants to set square tiles on the top of the wooden box the top of the box is a rectangle 7 1/2 inches long and 5 1/2 inche
    6·1 answer
  • An investment of $5000 earns $6000 simple interest in 12 years. Calculate the interest rate.
    14·1 answer
  • Translate into Algebra.
    15·1 answer
  • Hello, I need some help with this. I hate this SSS, SAS, AAS, stuff.
    13·1 answer
  • What is a falafel ?????
    11·1 answer
  • Which table represents an exponential function?
    12·1 answer
  • What is the equation for the axis of symmetry of your quadratic ? <br> Y=x^2-4x
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!