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
3241004551 [841]
3 years ago
10

The half-life of a radium isotope is 1,600 years. after 4,800 years, approximately how much of an original 10.0kg sample of this

isotope will remain
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
6 0
1/2 * 10 = 5 kg is left after 1600 years

after 2 more periods of 1600 years  amount left = 5 * 1/2 * 1/2  =  5/4 kgs

Answer:-    after 4800 years there is 1.25 kgs left 
You might be interested in
Given f(x) = -2 and g(x) = 5x - 6, find h(x) = f(x) ⋅ g(x)<br><br> h(x) = _____ x _____ _____
kherson [118]

Answer:

10x+12 is the answer in my calculation.

8 0
3 years ago
Maria y juan deben realizar el mapamundi en medio pliego de cartulina para la tarea de sociales pero cada uno tiene un cuarto de
kondor19780726 [428]

Answer:

Cuando María afirma que si unen sus dos cuartos de cartulina obtendrán el medio pliego que necesitan, esto es:

  • <u>Verdadero</u>.

Step-by-step explanation:

Para entender mejor el ejercicio vamos a utilizar números cada vez que se habla de cantidades de cartulina, por lo tanto, María y Juan tienen 1/4 de cartulina cada uno, es decir, 1/4 * 2, y necesitan 1/2 pliego para poder realizar su tarea, por lo tanto, con la afirmación de María sobre unir los dos cuartos de cartulina, en caso de que sea verdadero, ocurrirá que la suma de los dos cuartos dará el medio pliego, como se muestra a continuación:

  • Total de cartulina de María y Juan = \frac{1}{4}+\frac{1}{4}
  • Total de cartulina de María y Juan = \frac{4+4}{16}
  • Total de cartulina de María y Juan = \frac{8}{16}

Procedemos a simplificar el fraccionario obtenido, sacando mitad tanto en el numerador como en el denominador:

  • Total de cartulina de María y Juan = \frac{4}{8}
  • Total de cartulina de María y Juan = \frac{2}{4}
  • <u><em>Total de cartulina de María y Juan = </em></u>\frac{1}{2}<u><em /></u>

Como puedes ver al final, <u>la cantidad de cartulina de ambos, al ser sumada, da como resultado el 1/2 (medio) pliego que necesitan para su tarea de sociales, por lo cual la afirmación de María es correcta</u>.

3 0
3 years ago
A conveyor belt carries supplies from the first floor to the second floor, which is 26 feet higher. The belt makes a 60° angle w
tamaranim1 [39]
<h3>Answer:</h3>

30 ft; 0.4 min

<h3>Step-by-step explanation:</h3>

The mnemonic SOH CAH TOA reminds you ...

... Sin = Opposite/Hypotenuse

Here, the angle of elevation is opposite the triangle side representing the distance between floors. The hypotenuse is the length of the conveyor belt. Rearranging the formula (by muliplying by Hypotenuse/Sin), we get ...

... Hypotenuse = Opposite/Sin

Filling in the values from this problem, we have ...

... length of conveyor = (26 ft)/sin(60°) ≈ 30 ft

The time it takes to travel that distance is given by ...

... time = distance/speed

... time = (30 ft)/(75 ft/min) = 2/5 min = 0.4 min

3 0
3 years ago
Which relationships describe angles 1 and 2?
coldgirl [10]
Supplementary angles because because angle 1 + angle 2 = 180° so they form a line
6 0
3 years ago
Noah is making grilled cheese sandwiches for friends. He has 24 ounces of cheese. He plans to split the cheese evenly between 6
allsm [11]

Answer:

4

Step-by-step explanation:

it is 4 because if you divide 24 by 6 it will equal 4.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Delia worked 45 minutes on her oil painting.She took a break at 10:35 a.m.At what time did Delia start working on her painting
    12·2 answers
  • The difference in the x-coordinates of two points is 3, and the difference in the y-coordinates of the two points is 6. What is
    13·2 answers
  • What is the volume of a triangular prism that has a base of 8.4 inches, and a height of 4.8 inches?
    8·1 answer
  • Determinati numarul b astfel incat : (4x8)^15 : 4^5:2^6=2^b si 3^4x3^5x3^17=3^b
    9·2 answers
  • Hey guys how r u ? easy question
    10·1 answer
  • Consider a sampling distribution with p equals 0.12 and samples of size n each. Using the appropriate​ formulas, find the mean a
    14·1 answer
  • If KM is drawn on this quadrilateral, what will be its length?
    11·1 answer
  • 3.
    7·1 answer
  • Plzz help me to solve this qns please
    13·1 answer
  • A random sample of 5 weeks showed that a course agency received the fill numbers of weekly special to the Caribbean
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!