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
8

There are 20 parrots at the animal sanctuary. Their population is increasing at a rate of 15% per year. There are also 24 snakes

at the sanctuary. Each year 4 more snakes are bor
Mathematics
1 answer:
Alborosie3 years ago
3 0
What r u saying? is this a math question
You might be interested in
Please explain I really need help
velikii [3]

Answer:

1. 1343 years

2. 9 hours

3. 39 years

Step-by-step explanation:

1. Given, half-life of carbon = 5730 years.

∴ λ = 0.693/half-life of carbon = 0.693/5730 = 0.000121

If N₀ = 100 then N = 85

Formula:- N = N₀*e^(-λt)

∴ 85 = 100 * e^(-0.000121t)

∴㏑(-0.85)=-0.000121t

∴ t = 1343 years

2. Given half-life of aspirin = 12 hours

λ = 0.693/12 = 0.5775

Also N₀ = 100 then 70 will disintegrate and N = 30 will remain disintegrated.

∴ 70 = 100 *e^(-0.05775t)

0.70 = e^(-0.05775t)

㏑(0.70) = -0.05775t

∴ t = 9 hours

3.  The population of the birds as as A=A₀*e^(kt)

Given that the population of birds fell from 1400 from 1000, We are asked how much time it will take for the population to drop below 100, let that be x years.

The population is 1400 when f = 0, And it is 1000 when f = 5

We can write the following equation :

1400 = 1000e^(5t).

∴1400/1000 = e^(5k)

∴ k = ㏑(1.4)/5

We need to find x such that 1400/100 = e^(xk)

14 = e^(xk)

∴ x = 39 years

5 0
3 years ago
If you want to know the probability of spinning a spinner in a game that has 8 equal-sized
aleksandr82 [10.1K]

the answer is 1/8. Because you divide how many pieces there are by that same number.

7 0
3 years ago
Read 2 more answers
Which one of these show the multiplication property of equality? I know what is it I just don’t see it on here, 5 and 9 both loo
Fofino [41]

Answer:

5 is c 9 is f

8 0
3 years ago
Which of the following functions represents a cell phone bill if there is a monthly charge of 20 dollars plus 6 cents for each m
castortr0y [4]
It would be f(x) = 20 + 0.06x
7 0
3 years ago
Read 2 more answers
Can someone answers this question please master it correctly if it’s corect I will mark you brainliest
alukav5142 [94]

Answer: 1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which equation is not equivalent to the formula d = rt? A. r= t over d B. r= d over t C. t=d over r D. d=tr
    10·2 answers
  • Twenty students in Class A and 20 students in Class B were asked how many hours they took to prepare for and exam. The data sets
    5·1 answer
  • Please help me it would be much appreciated! I promise to mark brainlest!
    13·2 answers
  • For every 2 boys in the class, there are 3 girls.
    15·2 answers
  • The bill with the greatest value ever printed in the United States was worth 10 to the 5th power dollars which of the following
    7·1 answer
  • Help ASAP!!!!!!!! this is the only class that im doing bad in
    13·2 answers
  • Triangle PQR with area 32cm square and base QR is an enlargement of Triangle ABC with area 8 cm square and base BC=3cm , what is
    7·2 answers
  • Six less than the product of a number n and 1/5 is no more than 99
    13·1 answer
  • 49of students at a school are boys. If there are 2610 students at the school, how many are girls?
    9·1 answer
  • Find the solution for this system of equations. 12x 15y = 34 -6x 5y = 3 x = y =
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!