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
Mila [183]
3 years ago
12

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 210 grams of a
radioactive isotope, how much will be left after 6 half-lives?
Round your answer to the nearest gram
Mathematics
1 answer:
TiliK225 [7]3 years ago
7 0

Answer:

3 grams will be left after 6 half-lives

Step-by-step explanation:

Half-live:

Time it takes for the substance to be reduced by hall.

After n half lives:

The amount remaing is:

A(n) = A(0)(0.5)^{n}

In which A(0) is the initial amount and n is the number of half-lives.

Starting with 210 grams of a radioactive isotope, how much will be left after 6 half-lives?

This is A(6) when A(0) = 210. So

A(n) = A(0)(0.5)^{n}

A(6) = 210(0.5)^{6} = 3.3

Rounding to the nearest gram

3 grams will be left after 6 half-lives

You might be interested in
The flight path of a plane is a straight line from city J J to city K K. The roads from city J J to city K K take the long way a
Vika [28.1K]

Answer:

58.1 degrees

Step-by-step explanation:

Given the following

JK = 9.4miles (towards south) negative y axis

If the move 15.1 miles towards east (that will be towards the positive x axis)

Using the SOH CAH TOA identity

opposite= 15.1 miles(side facing m<J)

adjacent= JK = 9.4miles

tan theta = opposite/adjacent

tan m<J = 15.1/9.4

tan m<J = 1.6063

m<J = arctan (1.6063)

m<J = 58.09 degrees

Hence the measure of m<J to the nearest tenth is 58.1 degrees

4 0
3 years ago
Which equation is non linear y=3x y=3x^2 y=3^2 y=x
aleksandr82 [10.1K]

Answer:

y=x

Step-by-step explanation:

one type of coordinate cant = another

4 0
3 years ago
Write two equivalent ratios 3to5??
vesna_86 [32]

Answer:

3 : 5

6 : 10

9 : 15

12 : 20

15 : 25

7 0
3 years ago
Please solve the problem below. Which is the correct answer?
Ivanshal [37]
I’m guessing A? Sorry if it’s wrong!
7 0
3 years ago
Find the equation (in terms of x ) of the line through the points (-2,5) and (3,4)<br> y=
Alja [10]

Answer:

y = (-1/5)x + 23/5

Step-by-step explanation:

Given:

Two points;

(-2,5) and (3,4)

Find:

Equation of slope

Computation:

y = mx + b

5 = m(-2) + b

5 = -2m + b .......... Eq1

4 = m(3) + b

4 = 3m + b .......... Eq2

Eq2 - Eq1

-1 = 5m

m = -1/5

5 = -2m + b

5 = -2(-1/5) + b

5 = 2/5 + b

b = 23/5

y = mx + b

y = (-1/5)x + 23/5

3 0
3 years ago
Other questions:
  • Emily recorded the test scores of the students in her class in the dot plot below. Which measure of center would be best to use
    5·2 answers
  • I never learned this. I tried I just don’t understand. Can anyone help
    15·1 answer
  • The power P (in watts) generated by a windmill that has efficiency E is given by the formula P = 0.31ED^2V^3, where D is the dia
    8·1 answer
  • An asset has a cost of 50,000, with a residual value of 10,000. It has a life of 5 years and was purchased on January 1. Under d
    11·1 answer
  • A line has a rise of 3 and a run of 12. find the slope of the line. type a numerical answer in the space provided. if necessary,
    6·1 answer
  • 05.02)One triangle on a graph has a vertical side of 7 and a horizontal side of 12. Another triangle on a graph has a vertical s
    12·1 answer
  • six years from now, mark we'll be four times his age today. what is correct equation in terms of Marc's present age A.x+6=4×B.x=
    11·1 answer
  • 1) On a road map, the distance from Louisville to St. Louis is 12 cm. If the map has
    13·2 answers
  • The function, f(x), is plotted below.
    5·2 answers
  • 74% of 19 year old males are atleast 172 pounds , what percent of the males are not atleast 172 pounds?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!