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
IrinaVladis [17]
3 years ago
8

A culture started with 6,000 bacteria. After 5 hours, it grew to 7,800 bacteria. Predict how many bacteria will be present after

13 hours. Round your answer to the nearest whole number.
Mathematics
1 answer:
AleksandrR [38]3 years ago
4 0

Answer:

After 5 hours, the amount of bacteria increased: 7800-6000=1800

After 1 hours, the amount of bacteria increased: 1800/5=360

After 18 hours,  the amount of bacteria increased: 360*18 = 6480

=> Total amount of bacteria after 13 hours: 6000+6480 =12480

You might be interested in
Michael made 9/12 of his free throws at practice. What is 9/12 in simplest form?
riadik2000 [5.3K]
It would be 0.75 as a decimal or 3/4
4 0
3 years ago
Read 2 more answers
In a random sample of students who took the SAT test, 427 had paid for coaching courses and the remaining 2733 had not. Calculat
Dvinal [7]

Answer:

The 95% confidence interval for the proportion of students who get coaching on the SAT is (0.1232, 0.147).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

427 had paid for coaching courses and the remaining 2733 had not.

This means that n = 427 + 2733 = 3160, \pi = \frac{427}{3160} = 0.1351

95% confidence level

So \alpha = 0.05, z is the value of Z that has a p-value of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1351 - 1.96\sqrt{\frac{0.1351*0.8649}{3160}} = 0.1232

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.1351 + 1.96\sqrt{\frac{0.1351*0.8649}{3160}} = 0.147

The 95% confidence interval for the proportion of students who get coaching on the SAT is (0.1232, 0.147).

8 0
3 years ago
The perimeter of a rectangular pool is 288 m.
jolli1 [7]

Answer: 86

Step-by-step explanation:

8 0
2 years ago
2x+6=3x+6 help me plz​
jolli1 [7]
The answer would be, X=0
7 0
2 years ago
Read 2 more answers
Pls help ill give brainliest :)
Tatiana [17]

Answer:

380.

Just add the two numbers together and it'll work :)

3 0
2 years ago
Other questions:
  • A circle is divided into 18 equal parts. How many degrees is the angle for 5 parts? Explain
    6·2 answers
  • 30 friends are coming to my house for a cookout. 16 of them want hot dogs, 16 of them want burgers, and 11 of them want salad. 5
    15·2 answers
  • Find the area of the shape.
    11·2 answers
  • In the coordinate plane, what is the length of the line segment that connects points at 0, -1 and. -7, -2
    8·1 answer
  • Show all steps to solve:<br> 3( 1/6+2/9) + (-2)
    8·1 answer
  • Half the product of a and 2?
    7·2 answers
  • What is the equivalent of 2/6
    11·1 answer
  • CAN YOU ANSWER THIS QUESTION
    5·1 answer
  • Evaluate a1 (r)^n-1 for a1 = 2, r= 3, and n = 4.<br> A. 216<br> B. 18<br> C. 32<br> D. 54
    7·1 answer
  • Factorization<br>x² - 4y²-c²-4cy ​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!