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
emmainna [20.7K]
3 years ago
6

The bird population on an island is declining at a rate of 2.2% per year. If the population was 3500 in the year 2009, which is

the best prediction of the population in the year 2014? 3500 in 2009
3500 (.022) = 77
3500 - 77 = 3423
3423 in 2010
3423 (.022) = 75.31
3423 - 75.31 = 3347.69
3347.69 in 2011
3347.69 (.022) = 73.65
3347.69 - 73.65 = 3274.04
3274.04 in 2012
3274.04 (.022) = 72.03
3274.04 - 72.03 = 3202.01
3202.01 in 2013
3202.01 (.022) = 70.44
3202.01 - 70.44 = 3131.57
3131.57 in 2014
Mathematics
2 answers:
Vinil7 [7]3 years ago
7 0
Given:
2009 : 3,500 population
decrease of 2.2% per year. 
100% - 2.2% = 97.8%

2014 - 2009 = 5 years

3,500 * (0.978)^5 = 3,500 * 0.89473 = 3131.57

The bird population in 2014 will be 3,131.57 or 3,132.
devlian [24]3 years ago
4 0

The answer to this is 3132 for 2014, and 3063 for 2016

You might be interested in
What is 20/36 reduced
likoan [24]
20/36 reduced is 5/9. hope this helped!  :)
7 0
3 years ago
Read 2 more answers
Evaluate the line integral, where c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)
Arada [10]

The value of line integral is, 73038 if the c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)

<h3>What is integration?</h3>

It is defined as the mathematical calculation by which we can sum up all the smaller parts into a unit.

The parametric equations for the line segment from (0, 0, 0) to (2, 3, 4)

x(t) = (1-t)0 + t×2 = 2t  

y(t) = (1-t)0 + t×3 = 3t

z(t) = (1-t)0 + t×4 = 4t

Finding its derivative;

x'(t) = 2

y'(t) = 3

z'(t) = 4

The line integral is given by:

\rm \int\limits_C {xe^{yz}} \, ds = \int\limits^1_0 {2te^{12t^2}} \, \sqrt{2^2+3^2+4^2} dt

 

\rm ds = \sqrt{2^2+3^2+4^2} dt

After solving the integration over the limit 0 to 1, we will get;

\rm \int\limits_C {xe^{yz}} \, ds = \dfrac{\sqrt{29}}{12}  (e^{12}-1)   or

= 73037.99 ≈ 73038

Thus, the value of line integral is, 73038 if the c is the given curve. C xeyz ds, c is the line segment from (0, 0, 0) to (2, 3, 4)

Learn more about integration here:

brainly.com/question/18125359

#SPJ4

7 0
2 years ago
10 Points + brainliest.<br> 7a + 50 = 247
Oliga [24]

Answer:

a = 28.14 (Estimated)

Step-by-step explanation:

7a + 50 = 247

=> 7a = 197

=> a = 28.1428571429 (Using Calculator)

=> a = 28.14 (Estimated)

Hoped this helped.

4 0
3 years ago
Read 2 more answers
What is 64 minutes as mixed number? (i'm pretty sure it might be
3241004551 [841]

Answer:

1 1/15

Step-by-step explanation:

64 minutes is the same thing as 64/60 minutes.

64 goes into 60 once. 64-60=4, so that would be your numerator. You would keep the denominator as 60, since it's still out of 60.

If you put those numbers together your fraction would be

1 and 4/60, if you want to simplify, 60/4=15, so 1 and 1/15 would be your fraction.

Hope this helped!

5 0
2 years ago
Michaela spent a total of 12 1/2 hours doing her online learning work this week. If she spent 5 3/4 of those hours working on Mo
g100num [7]
You Ask Alexa or Siri and I will tell you
6 0
3 years ago
Read 2 more answers
Other questions:
  • Consider this triangle. Which statements is true about the lengths of the sides?
    6·2 answers
  • The difference between two positive integers is 4. If the smaller is added to the square of the larger, the sum is 68. Find the
    10·1 answer
  • Solve.
    15·1 answer
  • Y’all help me with this please
    14·1 answer
  • What is the simplified form of (x2 + 5x − 6)(x − 2)?
    6·2 answers
  • What is 10.3% of 853.93km
    5·1 answer
  • Jim deposits $4000 into an account that pays simple interest at a rate of 3% per year. How much interest will he be paid in the
    15·2 answers
  • Solve √(2x-5) - √(x+6) = 0.
    15·1 answer
  • Petra jogs 3 miles in 30 minutes at this rate how long would it take a jog 10 miles​
    13·2 answers
  • A car is driving down a long Steep Hill the elevation above sea level in feet of the car when it is D miles from the top of the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!