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
10x + 5x – 3 = 2(2x – 1)
DiKsa [7]

Answer:

The answer is x = 1/11

Step-by-step explanation:

hope this helps

10x + 5x – 3 = 2(2x – 1)

10x+5x-3=4x-2

15x-4x=-2+3

11x=1

To find x divide both sides by 11

11x/11=1/11

x= 1/11

8 0
3 years ago
Read 2 more answers
You are locked out of your villa in Dubai and the only open window is on the second floor to get inside. You need to borrow a la
vova2212 [387]

Answer:

You are locked out of your villa in Dubai and the only open window is on the second floor to get inside. You need to borrow a ladder from your neighbour. So you will have to propped up ladder against villa, since there is a bush along the edge of the house find the interior angles of the triangle formed to reach window and exterior angles on the ground. Justify your answer.

pls answer pls pls

7 0
3 years ago
What is the gradient of the blue line????<br> help please
Maru [420]

Answer:

-5

Step-by-step explanation:

gradient = change in y ÷ change in x

gradient = -5 ÷ 1 = -5

8 0
2 years ago
I Need Help With This One
Arisa [49]

Answer:

x = -6  x= -3

Step-by-step explanation:

f(x) = x^2+9x+18

Set equal to 0 to find the zeros

0 = x^2+9x+18

Factor, what numbers multiply to 18 and add to 9

6*3 =18

6+3=9

0= (x+6) (x+3)

Using the zero product property

x+6 =0   x+3 =0

x = -6  x= -3

7 0
3 years ago
Which of the following is not a solution for finding the perimeter of the square?
kenny6666 [7]

Answer:

y

Step-by-step explanation:

y needs to provide a number

7 0
3 years ago
Other questions:
  • Plz help me fast I really need help
    7·1 answer
  • A store charges $32 to print 80 greeting cards and $0.33 for each additional greeting card
    13·2 answers
  • Equivalent ???????????hh
    9·2 answers
  • Find the circumference and the area of a circle with radius 7 yd . Use the value 3.14 for π , and do not round your answers. Be
    7·1 answer
  • How do you solve this equation?
    6·1 answer
  • To which set of numbers does the number sqr rt-16 belong? Select all that apply
    12·1 answer
  • Using five different digits, form a 5-digit number
    5·1 answer
  • May someone please show full work. How do I do this?
    11·1 answer
  • What is the fraction shown above?
    13·2 answers
  • 13. Three friends equally share 12 of a pizza. How much of the pizza does each friend get?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!