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
masya89 [10]
3 years ago
15

A population of insects doubles every month. this particular population started out with 20 insects

Mathematics
1 answer:
Minchanka [31]3 years ago
8 0
<span>Start with 20
After 1 month, 20 * 2 = 20 * 2^1
After 2 months, (20 * 2) * 2 = 20 * 2^2
 After 3 months, (20 * 2^2) * 2 = 20 * 2^3
After x months: 20 * 2^x
</span>
2x+20, x being a month<span>

</span>
You might be interested in
What number is a common multiple of 5 and 9?
Yakvenalex [24]
45 is the answer. It is the least common multiple of 5 and 9. Multiples of 5: 5, 10,15,20,25, 30, 35, 40, 45 and multiples of 9: 9, 18, 27, 36, 45
6 0
3 years ago
PLEASE HELP ASAP, WILL GIVE BRAINLIEST!
mojhsa [17]

Answer:6

Step-by-step explanation:

since it is A half circle it is the hhalf Value of the area of the full circle

3 0
2 years ago
Read 2 more answers
In a random sample of 5 residents of the state of Texas, the mean waste recycled per person per day was 1.9 pounds with a standa
sammy [17]
<h2>Answer with explanation:</h2><h2 />

The confidence interval for population mean is given by :-

\overline{x} \pm\ t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 5, since n<30 , so the test we use here is t-test.

Sample mean : \overline{x}=1.9\text{ pounds}

Standard deviation: \sigma=0.89\text{ pounds}

Significance level : 1-\alpha:1-0.99=0.01

By using the standard normal distribution table , the critical value corresponds to the given significance level will be :-

t_{n-1,\alpha/2}=t_{5-1,0.01/2}=t_{4,0.005}=4.604

Now, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas will be :-

1.9\pm\ (4.604)\dfrac{0.89}{\sqrt{5}}\\\\\approx1.9\pm1.832\\\\=(1.9-1.832,1.9+1.832)=(0.068,\ 3.732)

Hence, the 99% confidence interval for the mean waste recycled per person per day for the population of Texas  = (0.068, 3.732)

5 0
3 years ago
I need help working this out
Leona [35]

I think in this situation the best method would be a guess and check. You know that there are 8 dimes more than there are nickels. So just keep increasing each number by one until you reach $1.40. If there were 9 dimes and 1 nickels it would add up to $0.95. If there were 10 dimes and 2 nickels, it would add up to $1.10. If there were 11 dimes and 3 nickels, it would add up to $1.25. If there were 12 dimes and 4 nickels, it would add up to $1.40. So your answer is 12 dimes and 4 nickels.

I hope this helped!

8 0
3 years ago
Read 2 more answers
PLEASE HELP ASAPPPPP Find the value of x for mAB= 27° and mCD= 49°. The figure is not drawn to scale
Minchanka [31]

Answer: the answer is B

Step-by-step explanation:

51.5

6 0
3 years ago
Read 2 more answers
Other questions:
  • 8 cm equals how many millimeters
    8·1 answer
  • I need help asap please show work
    5·1 answer
  • Julie has 5 cherry lollipops,1 lime lollipops, and 2 grape lollipops in a bag. She is going to select one lollipop, replace the
    6·1 answer
  • Hello there!
    8·1 answer
  • Explain 657 divide by 3 using partial quotient
    15·1 answer
  • A photo booth’s profit as a function of users is represented in the table. The function is quadratic.
    13·1 answer
  • A swimming pool in the shape of a right rectangular prism measures 24 feet by 16 feet and is 4.5 feet deep across the entire poo
    12·2 answers
  • Pls help if I don’t finish today mom will hurt me
    6·1 answer
  • 2.
    15·1 answer
  • What is the range of the function y= √x+5
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!