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
Sergeu [11.5K]
3 years ago
7

A certain bacteria population increases continuously at a rate proportional to its current number. The initial population of the

bacteria is 70. The population increases to 360 bacteria in 4 hours. Approximately how many bacteria are there in 7 hours? Round your answer to the nearest whole number.

Mathematics
2 answers:
masha68 [24]3 years ago
8 0

Answer:

C

Step-by-step explanation:

B = 70 × r^t

360 = 70 × r⁴

r⁴ = 36/7

4lnr = ln(36/7)

lnr = 0.4094021974

r = e^0.4094021974

r = 1.505917275

At t = 7,

B = 70 × (1.505917275)⁷

B = 1229.435775

Approximately 1229

luda_lava [24]3 years ago
3 0

Answer: C

Step-by-step explanation:

This describes an expotential function

At t = 0, P = 70

Therefore, C = 70

P = 70 e^kt

Solve for k by plugging in (4,360)

k = 0.4094

plug in t(7 hours)

70 e^(0.4094*7)

The answer roughly equals C

You might be interested in
Rational numbers that are not integers
gogolik [260]
A rational number that is not an integer can be expressed in decimal form with a non-zero digit after the decimal
7 0
3 years ago
Complete the rule:<br> positive + negative -
aivan3 [116]

Answer: If you have a positive and a negative, there is one dash left over, and the answer is negative.

7 0
3 years ago
Read 2 more answers
What is the point of intersection of the x-axis and the y-axis called
tester [92]

That is called the Origin , where the number 0 is.

6 0
3 years ago
Read 2 more answers
If someone tells you your body temperature is 98.6°, what scale is being used? How do you know?
Alla [95]

Answer:

Fahrenheit

Step-by-step explanation:

When I am getting my temperature checked, it is usually checked in Fahrenheit, and my temperature is around 98.6 degrees.

6 0
3 years ago
35
Roman55 [17]

\neq  \lim_{n \to \infty} a_n \pi x_{123} \alphaAnswer:

Step-by-step explanation:

There are 3 boxes. The formula for volume is lxhxw, (length x height x width)

6 0
2 years ago
Other questions:
  • For a circle of radius 9 feet, find the arc length s cut off by a central angle of 6°
    6·1 answer
  • Cole’s age is 3 years less than his sister Tina’s age, t. If Cole is 18, which equation represents this situation, and how old i
    14·2 answers
  • Which property is shown by 6+9=9+6?
    11·2 answers
  • Infants who weigh less than 2,500 grams (5 1/2 pounds) at birth are called
    8·1 answer
  • Pick the expression that matches this description:
    13·1 answer
  • THE SUM OF THREE CONSECUTIVE ODD NUMBERS IS 153 WHAT IS THE SMALLEST OF THREE NUMBERS?
    8·1 answer
  • Please help, thanks in advance :)
    10·1 answer
  • A pair shoes is worth $50 but it’s markdown for 12% what’s the price
    15·1 answer
  • The functions fand g are defined as follows:
    10·1 answer
  • PLEASE HELP WITH THIS. WILL GIVE BRAINLEIST FOR AN ACTUAL ANSWER
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!