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
Tasya [4]
1 year ago
8

In 1986, the worst nuclear disaster occurred in Chernobyl, USSR, when an explosion at a nuclear power plant released 1000 kg of

radioactive cesium-137. The following model calculates the remaining amount of cesium-137 in the atmosphere x years after 1986.
f(x)=1000(0.5)^x/30
Find for the following:
Year x (years since 1986) f(x)
2006 20
2026 40
2046 60
2066 80
2086 100
2106 120
2126 140


If 100 kg or more of cesium-137 is considered unsafe for humans, when will this area be safe again (you may give an estimate based on your table of values above or find the exact value from a graphing utility)? What is the y-intercept for this function and what does it represent? Is this a growth or decay function?
Mathematics
1 answer:
max2010maxim [7]1 year ago
3 0

The time when the area will be  safe again in the year 2086

<h3>What is a nuclear power plant?</h3>

A nuclear power plant is a plant that produces energy by the use of nuclear energy. In a  nuclear plant we always have a nuclear fuel that is used in the plant. The fuel undergoes a fission reaction that enables the plant to be used for the production of electricity.

Now we know that a nuclear reaction is a case of exponential decay hence the  y-intercept for this function is the decay constant of the function.

The time when the area will be  safe again in the year 2086 because following the function;

f(x)=1000(0.5)^x/30 thus;

1000(0.5)^100/30

= 99.2 Kg

Learn more about nuclear decay:brainly.com/question/12224278

#SPJ1

You might be interested in
Brian completed 34 free throws and missed 16.
Molodets [167]
It is 46 if you divide 34 by 16 you get 2.125 then divide 100 by 2.125 and you get 47.05 the 0 means go down if you are rounding which brings it to 46

4 0
3 years ago
Read 2 more answers
Can someone help me please
laiz [17]

Area of trapezium= 1/2 × (a+b) × h

= 1/2 × (12 + 8) × 8

= 1/2 × 20 × 8

= 10 × 8

= 80 cm^3

Hope it helps you

3 0
2 years ago
Find A U B U C. A){2,3,5,6,7,8,9,11,12}B){2,3,5,6,7,8,9}C){2,3,5,7,8,9,12}D){3,5,6,7,8,11,12}
Triss [41]

Answer: {2,3,5,6,7,8,9,11,12}

4 0
3 years ago
If 2x - 3y = 24 and 3x + 4y = 2, what is the value of x - y ?
Reika [66]

Answer:

10

Step-by-step explanation:

2x - 3y = 24 ------ (1)

3x + 4y = 2 ------ (2)

(1) × 4,

8x - 12y = 96 ------ (3)

(2) × 3,

9x + 12y = 6 ------ (4)

(3) + (4)

17x = 96 + 6

= 102

x = 102 ÷ 17

= 6

Sub x = 6 into (2),

3(6) + 4y = 2

18 + 4y = 2

4y = 2 - 18

= -16

y = -16 ÷ 4

= -4

Therefore,

x - y = 6 - (-4)

= 6 + 4

= 10

<em>i</em><em> </em><em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em> </em><em>!</em><em>!</em>

7 0
2 years ago
HELPPPP
Shalnov [3]

y = 0.25x + 40

60 = 0.25x + 40

60 - 40 = 0.25x + 40 - 40

20 = 0.25x

\frac{20}{0.25}  =  \frac{0.25x}{0.25}

80 = x

She can buy a maximum of 80 cups.

5 0
3 years ago
Other questions:
  • 9. Which of the following integers cannot be expressed as the difference of two squares?
    15·1 answer
  • Law of sines: sin(A)/a=sin(B)/b=sin(C)/c How many distinct
    15·1 answer
  • 30,000+2,000+500+8
    5·1 answer
  • If someone makes $1000 every second, how much will they have in an hour?
    14·1 answer
  • A number is between -5 and -14. What is the least possible integer value of the number?
    10·1 answer
  • Is -2 more than -1? or is it the other way around
    13·2 answers
  • Dylan bought 3 identical shirts and a $20 pair of shorts from the store. His total cost was $56. How much did each shirt cost?
    12·1 answer
  • HELP ASAP<br> thanks you
    13·1 answer
  • The line plot (shown in the attached image) shows the prices of sunglasses at a department store.
    15·1 answer
  • First person who awnsers gets brainlist
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!