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
Gekata [30.6K]
3 years ago
6

If you flip a penny 99 times and each time it came up heads then the chance of the penny coming up heads is ___

Biology
1 answer:
Helga [31]3 years ago
5 0
The chances of heads as a result when flipping a penny will always be 50%. Although heads came up 99 times in a row, the events that occurred before will not affect the probability of the current event in terms of a coin flip.

There are 1 out of 2 chances of it occurring or 1/2. Divide that and multiply it by 100% to get the probability in percent. So the answer will be 50%.

The answer is B.
You might be interested in
22)
Maslowich

Answer:

D

Explanation:

7 0
3 years ago
What are the two ways macrophages are able to respond to invading germs?
Marysya12 [62]
<h2>Function of  Macrophages</h2>

Explanation:

  • <em>Macrophages are effector cells of the</em> <em>innate immune system</em> that phagocytose microscopic organisms and emit both expert incendiary and antimicrobial middle people
  • The <em>macrophages </em>assume a significant role in wiping out <em>unhealthy and harmed cells through their customized cell death </em>
  • <em>Macrophages </em>are produced through the separation of <em>monocytes</em>, which transform into <em>macrophages when they leave the blood</em>
  • There are two kinds of tissue macrophages such as <em>macrophages that live inside explicit organs/tissue (free macrophages and fixed macrophages) and macrophages</em> got from monocytes in response to inflammatory stimuli
3 0
3 years ago
the type and age of rocks found in this mountain range are also found on another continent. what might this mean?
ki77a [65]
It means a continental drift occurred
6 0
3 years ago
There are initially 1000 bacteria in a culture. The number of bacteria doubles each hour. The number of bacteria N present after
polet [3.4K]
There are several information's of immense importance already given in the question. Based on those information's the answer can be easily deduced. 
Initial number of bacteria in the culture = 1000
Number of bacteria after t hours = 1000 (2)^t
Then
1000 (2)^t = 50000
2 ^t = 50
t = 5.6

I hope the procedure is clear enough for you to understand.
3 0
3 years ago
Why do living things store energy in lipids instead of in carbohydrates?
Burka [1]
Because carbohydrates can be converted into energy but can not store energy.
7 0
3 years ago
Other questions:
  • Why does secondary succession occur faster than primary succession?
    10·1 answer
  • The experimental results could be made more valid by... 1) increasing the number of students. 2) using a plastic clothespin. 3)
    11·1 answer
  • Biology is the study of life. compare a dog to a donut, explain why one is living and the other is not
    7·1 answer
  • While on an archaeology expedition, you unearth a skeleton with the following characteristics: four long, slender finger bones a
    8·1 answer
  • You are given two true-breeding groups of gerbils. The gerbils in the first group have black fur and curly tails; the gerbils in
    8·1 answer
  • Which statement about the cells of organisms is accurate?
    9·1 answer
  • PLEASE HELP ME!
    12·2 answers
  • If each parent is a purebred, brown-eyed person, what is the probability of having a brown-eyed child.
    5·2 answers
  • Why is a genetically diverse population more likely to survive a change to the
    14·1 answer
  • Slugs are mostly made of water, and CELLS. Every living thing is made of TONS and TONS of cells. Cells of a slug hold its water.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!