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
german
3 years ago
8

A common inhabitant of human intestines is the bacterium Escherichia coli. A cell of this bacterium in a nutrient-broth medium d

ivides into two cells every 20 minutes. The initial population of a culture is 58 cells. (a) Find the relative growth rate. (Assume t is measured in hours.) k = Correct: Your answer is correct. (b) Find an expression for the number of cells after t hours. P(t) = Correct: Your answer is correct. (c) Find the number of cells after 8 hours. 973078528 Correct: Your answer is correct. cells (d) Find the rate of growth after 8 hours. (Round your answer to three decimal places.) billion cells per hour (e) When will the population reach 20,000 cells? (Round your answer to two decimal places.) 2.81 Correct: Your answer is correct. hr
Mathematics
1 answer:
kozerog [31]3 years ago
5 0

Answer:

The E. Coli will grow at a rate of approximately 800% an hour.

You might be interested in
20 Points! Please Help!
ivolga24 [154]

To solve this problem yo need to have the "x", the "y", and the radius. To find the radius since it is not given we use the formula.

sq rt(-3^2+1^2)

sq rt(9+1)

sq rt(10) would be the length of the radius in this case.

Then we use the sine cosine and tangent fractions

sin:y/r

cos:x/r

tan:y/x

With the values plugged in the equations are

SIN:1/sqrt(10) Since there can´t be a sq rt in hte denominator we change it to 1(sq rt(10))/10

COS:-3/sqrt(10) Since there can´t be a sq rt in the denominator we change it to -3(sq rt(10))/10

TAN:1/-3 This one can stay the same.

This would be the measures of SIN, COS, and TAN.

3 0
2 years ago
Sam spends 12.5% of his day doing homework. There are 24 total hours in one day. Which proportion could be used to calculate the
otez555 [7]
Homework =  12.5% of 24 hours  = 0.125 x 24  = 3 hours

Sam spent <u>3 hours</u> on homework.

Proportion of the time spent on homework = 3/24 = 1/8

Answer: Same spent 1/8 of his day on homework.
6 0
2 years ago
Read 2 more answers
Find the area of a circle with radius, <br> r<br> = 6.43m.<br> Give your answer rounded to 2 DP.
Vesna [10]

Answer:

129.89 m²

Step-by-step explanation:

Area of a circle of radius r is A = πr².

If r = 6.43 m, then A = π(6.43 m)²  =  129.89 m²

5 0
2 years ago
A local hamburger shop sold a combined total of 754 hamburgers and cheeseburgers on Saturday. There was 54 more cheeseburgers so
DochEvi [55]
Answer: 323 hamburgers

754/2=377
377 ham 377 cheese
54 more cheese than ham
377 ham - 54 = 323 hamburgers total sold on Saturday
7 0
2 years ago
What is the surface area of this right rectangular prism?
vagabundo [1.1K]

Answer:

A≈32\frac{3}{10}ft²

--

To find the surface area of a right rectangular prism you must use this formula A=2(wl+hl+hw)

Then plug in your variebles

A=2( 1.33*1.5+5+1.5+5+1.33)

This comes out to be A≈32 \frac{3}{10}

4 0
2 years ago
Other questions:
  • What is the equation of the quadratic graph with a focus of (3,4) and a drirectrix of y =8
    11·1 answer
  • 42000+18000-48000+49000-42000
    6·2 answers
  • Which is the grapth of f (x)=5 (2)^x
    14·1 answer
  • What is the value of y? 6(5 + 3) = 6 • 5 + 6 • y 
    8·1 answer
  • allison has 3 containers with 25 crayons in each. she also has 4 boxes of markers with 12 markers in each box. She gives 10 cray
    14·2 answers
  • A building that is 100 ft tall casts a shadow that makes a 30 degree angle with the ground. Approximately how long, in feet, is
    13·1 answer
  • Help please asap. i’ll mark brainliest
    6·1 answer
  • Which expression is equivalent to h??
    9·1 answer
  • Determine what type of transformation is represented. A. translation B. reflection C. none of these D. rotation
    13·1 answer
  • The total cost of 3 bikes is 480 000 . One bike costs twice as much as the smallest and another 3 times as much a the smallest ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!