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
dem82 [27]
2 years ago
12

Because of a virus introduced into a bacterial culture, the population of the bacteria decreasedfrom 3000 to 1000 in 50 minutes.

Assuming exponential decay, determine how many bacteriawill remain after 2 hours from the beginning of the experiment.(Note: First give an exactanswer, then round it to the nearest integer.)
Mathematics
1 answer:
Mamont248 [21]2 years ago
8 0

Answer:

208

Step-by-step explanation:

Given that;

Given that;

y= a(1 - b)^t

Where;

wherein y is the final amount, a is the original amount, b is the decay factor, and x is the amount of time that has passed.

To obtain the constant b,

y= ae^-bt

Substituting values;

1000 = 3000 e^-b(50)

1000/3000 = e^b(50)

0.33 = e^b-(50)

ln (0.33) = ln(e^b(-50))

-1.1 = -50b

b= 1.1/50

b= 0.022

After two hours or 120 minutes;

y= 3000(1 - 0.022)^120

y= 207.8661772

y= 208

You might be interested in
Need help !!!!!!!!!!!<br><br> !!!!!!
luda_lava [24]

Answer: B

Step-by-step explanation:

6 0
2 years ago
&lt;ABD has a measure of 36 degrees. a)find the compliment of the angle b)find the supplement of that angle
victus00 [196]
A) The complement of an angle is the other angle that can be added to the original to add up to 90 degrees. The complement of <ABD would be 90-36=54

b) The supplement of an angle is whatever number can be added to the original to add up to 180 degrees. The supplement of <ABD would be 180-36=144
6 0
3 years ago
Answer plz need ASAP
nekit [7.7K]

Answer:

Instead of wasting hours of your life doing that, just use Desmos (website)

Step-by-step explanation:

5 0
3 years ago
Find the value of x. <br> A. x= 1 <br> B. x=5 <br> C. x=19 <br> D. x=37
Strike441 [17]
Triangle WYZ and triangle TWY are congruent, therefore WZ = TW
WZ = TW
3x - 5 = 2x
3x - 2x = 5
x = 5

The value of x is 5
6 0
3 years ago
Read 2 more answers
Find the slant height of a cone with surface area 282.74 ft2 and diameter 10 ft.
ELEN [110]

The formula for the surface area of cone is:

Surface Area of Cone = π * r * l + π * r^2               , where l = slant height

Substituting the given values:

282.74 ft^2 = 3.14 * 5 ft * l + 3.14 * (5 ft)^2

<span>l = 13 ft</span>

5 0
3 years ago
Other questions:
  • A football coach recorded his team's game scores over a football seasons. The scores are 21,45,21,14,21,28,24,14,24,28. A) Find
    13·1 answer
  • Solve for the equation. 4x - 13 = 2x + 9
    11·2 answers
  • T or F When drawing a line of best fit, it is possible that the line touches no points.​
    10·2 answers
  • Will bought 4 slices of pizza for $6.00.
    10·1 answer
  • What’s the area? Please help
    10·1 answer
  • Lisa decided to start exercising. The first day he jogged 0.5 miles. The next day she plans to jog 0.1 more than the previous da
    8·2 answers
  • 9y - 3 (if y = 10)..
    10·2 answers
  • Find the surface area of this rectangular solid.
    12·2 answers
  • Jon and Keith save money at the end of each month and begin saving money at the same time . Jon's savings after m months are mod
    11·1 answer
  • If f(x)=x-3/4 and h(x)=3x-4 find f(h(-1))
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!