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
Brilliant_brown [7]
3 years ago
5

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 190 grams of a radioactive isotope, how much will be left after 4 half-lives?
Mathematics
1 answer:
Semmy [17]3 years ago
5 0
190*(1/2)^4 = 190/16 = 11.875 . . . grams
You might be interested in
I don't know the answer pls help fast I don't get it 25 points pls answer quick
romanna [79]

V = 1/3 x B x H

Solve for B:

Multiply both sides by 3:

3v = B x H

Divide both sides by H

B = 3V/H

The answer is C

8 0
3 years ago
Which relation is a function?
tresset_1 [31]

Answer: It is the top right one.

Step-by-step explanation: That one passes the vertical line test. A function can't have any points that have the same x-coordinate.

7 0
2 years ago
2/9 h = 8<br><br> h=<br><br> Pls tell me what h = !
Wewaii [24]

Answer:

h=36

.......................

3 0
3 years ago
The value of cosine is undefined at pi and 2pi radians.<br> TRUE<br> FALSE
Naddika [18.5K]

Answer: False

Step-by-step explanation:

False, the value of cosine at pi and 2pi is equal to -1 and 1 respectively. You can test this by using the pi circle or a calculator. Let pi = 180 degrees. Cosine is always defined and alternates between 1 and -1.

4 0
3 years ago
Is Anyone know the answer????
Alinara [238K]

Answer:

Angle 1 = 40

Step-by-step explanation:

Angle 1 and Angle 2 are alternate angles. So,

2x + 20 = 3x + 10

3x - 2x = 20 - 10

x = 10

Angle 1 = 2x + 20 = 2 x 10 + 20 = 40

4 0
3 years ago
Read 2 more answers
Other questions:
  • The radius of a circle is 4 miles. What is the circle's area 3.14 for ​.
    13·1 answer
  • 7. The length of a rectangle is 12 in. and the perimeter is 56 in. Find the width of the rectangle. A. 22 in. B. 16 in. C. 32 in
    7·1 answer
  • Find any real solutions for the following equations<br><br> x3 = - 64
    7·1 answer
  • A tire on Tom's car weighs 21 2/3 pounds. All 4 tires have the same weight. Which is the total weight of the 4 tires on Tom's ca
    12·2 answers
  • 12 week as a percent of 1 year ​
    11·2 answers
  • Pls answer with equation
    13·2 answers
  • This pattern is made from yellow and blue
    13·1 answer
  • 10. Create an example of an irrational value<br> between 2 and 3.
    13·1 answer
  • Math problem need help if do 5 stars
    10·1 answer
  • Lois jumped 270 times in 6 hours. At that rate, how many times would she jump in 4 minutes?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!