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
Talja [164]
3 years ago
7

The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass

. Starting with 195 grams of a radioactive isotope, how much will be left after 6 half-lives?
Use the calculator provided and round your answer to the nearest gram.
Mathematics
1 answer:
Shkiper50 [21]3 years ago
5 0

Half of the starting amount remains after 1 half-life. So after 6 half-lives, the starting amount is halved 6 times, meaning that a 195 g sample would decay down to

(195 g)/2^6 = 195/64 g ≈ 3 g

You might be interested in
The first step in the process for facturing the trinonmial x2-5x-36 is to
kakasveta [241]
Set up your parentheses, and put x in the front of both because x is squared. It should look like this: (x     )(x     ). Next, you find notice that one sign must be positive, and one must be negative. Then, you find the factors of 36. 6 and 6, 3 and 12, 1 and 36, 18 and 2, and 9 and 4. You then guess and check with the different signs and factors what will get you back to the trinomial using the FOIL method. When you do this, you should get (x-9)(x+4).
7 0
3 years ago
PLEASE HELP. I WILL MARK BRAINLIEAST!!
emmainna [20.7K]
There’s technically two answers, you could put Angles 3 and 6, or Angles 7 and 2
3 0
3 years ago
Read 2 more answers
Solve the linear equation.
Nataliya [291]

7x+10=\dfrac{1}{3}(12x-3)+14x\qquad\text{use distributive property}\\\\7x+10=\dfrac{1}{3}\cdot12x-\dfrac{1}{3}\cdot3+14x\\\\7x+10=4x-1+14x\\\\7x+10=18x-1\qquad\text{substitute 10 from both sides}\\\\7x=18x-11\qquad\text{subtract 18x from both sides}\\\\-11x=-11\qquad\text{divide both sides by (-11)}\\\\\boxed{x=1}

8 0
3 years ago
They are offering a selection from 5 appetizers, 6 entrees, and 3 desserts. How many combinations of 1 of each are possible?
Katarina [22]

Answer:

90

Step-by-step explanation:

By Fundamental Counting Principle, there are 5*6*3 = 90 combinations possible.

6 0
3 years ago
find the mean of the following group of numbers: 6.1, 5.9, 4.2, 5.9, and 10.7. round your answer to the nearest tenth. responses
dalvyx [7]

The mean of the given set of group numbers is 6.6

Given,

In the question:

The Group of numbers are as follows:

6.1, 5.9, 4.2, 5.9 and 10.7

To find the mean of the given set of group of numbers.

Now, According to the question:

Given is the following data:

6.1, 5.9, 4.2, 5.9 and 10.7

We can find the mean of the given set of data using the formula-

Mean (M) = Σ a[i]/n = (Sum of all the elements)/(total number of elements)

Now, n = 5

and Σ a[i] = 6.1 + 5.9 + 4.2+ 5.9 + 10.7 = 32.8

Putting the values in the formula, we get:

M = 32.8/5 = 6.56 = 6.6

Hence, The mean of the given set of group numbers is 6.6

Learn more about Mean at:

brainly.com/question/1537458

#SPJ4

8 0
1 year ago
Other questions:
  • The length of a recycling cart is 1.5 yard.
    5·1 answer
  • The manager of music is giving away 255 music downloads at its grand opening event.
    5·1 answer
  • On a coordinate plane, a curved line crosses the x-axis at (negative 1, 0) and the y-axis at (0, 2).
    9·2 answers
  • What is $281.875 rounded to the nearest tenth?
    14·2 answers
  • A local diner uses 4 2/3 pounds of meat to make five hamburgers. How much meat is used to make one hamburger?
    9·1 answer
  • I NEED HELP BEFORE 12:00 I’ll do anything
    13·1 answer
  • Help please I NEED TO PASS :(((((
    11·1 answer
  • A rope is 225 centimeters long.
    9·1 answer
  • Please help! I dont know this question.
    8·2 answers
  • Help geometry hw will give brainliest
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!