The question is incomplete. Here is the complete question.
Three red square pieces of wood, four yellow square pieces, and five boue square pieces are put into a cloth bag. four re round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
What are the chances that the piece is red round or blue round piece?
a. Cannot be determined
b. 1 chance out of 3
c. 1 chance out of 21
d. 15 chances out of 21
e. 1 chance out of 2
Because:
a. 1 of the 2 shapes is round
b. 15 of the 21 pieces are red or blue
c. There is no way to tell which piece will be picked
d. Only 1 of the 21 pieces is picked out of the bag
e. 1 of every 3 pieces is a red or blue round pieces
Answer: b. 1 chance out of 3
e. 1 of every 3 pieces is a red or a blue round pieces
Explanation: Inside the bag, there will be:
Total of squares: 3 + 4 + 5 = 12Total of round: 4 + 2 + 3 = 9Total of pieces inside the bag: 12 + 9 = 21The question is asking for a round red piece. The probability of that happening is
P(r) = [tex]\frac{4}{21}[/tex]
And a blue round piece:
P(b) = [tex]\frac{3}{21}[/tex]
It is a "OR" probability, so:
P(r or b) = [tex]\frac{4}{21} +\frac{3}{21}[/tex]
P(r or b) = [tex]\frac{7}{21}[/tex] or [tex]\frac{1}{3}[/tex]
Which means 1 out 3 pieces taken out of the bag will be red or blue.
Which if these best describes a climax community? HELP IT'S FOR A TEST I DON'T HAVE MUCH TIME!!!
How do nutrients move through an environment? What drives the movement of nutrients?
Answer:
The nutrient cycle is a system where energy and matter are transferred between living organisms and nonliving parts of the environment. This occurs as animals and plants consume nutrients found in the soil, and these nutrients are then released back into the environment via death and decomposition.
The nutrient cycle is a system that transfers energy and matter between living organisms and non-living elements of the environment.
How do nutrients move?As the concentration of nutrients around the root system decreases, nutrients from higher concentration areas diffuse - or move - toward low concentration areas and the roots. They only move a short distance, however. Potassium (K) and phosphorus (P) primarily move via diffusion.The nutrient cycle is a system that transfers energy and matter between living organisms and non-living elements of the environment. This occurs when animals and plants consume soil nutrients, which are then released back into the environment through death and decomposition.The movement of nutrients to the root surface in response to a concentration gradient is referred to as diffusion. When nutrients are found in higher concentrations in one area than in another, there is a net movement to the low-concentration area, resulting in equilibrium.To learn more about : Diffusion.
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Question 6 of 20
You turn on a light in a room to read a book. Not all the energy from the
lightbulb becomes light energy. What happens to the rest of the energy from
the lightbulb?
A. It is transformed into chemical energy
B. It is transformed into magnetic energy
C. It is transformed into electrical energy
D. It is transformed into thermal energy
SUBMIT
Answer:The correct answer is D.It is transformed into thermal energy.
ExplanatioN:(Apex) Hope this helps !
Answer:
d. it is transformed into thermal energy
Explanation:
AP-EX
what does DNA use to store information
Answer:
DNA stores biological information in sequences of four bases of nucleic acid — adenine (A), thymine (T), cytosine (C) and guanine (G) — which are strung along ribbons of sugar- phosphate molecules in the shape of a double helix.
Explanation:
DNA uses the complimentary base pairs to store information in organisms.
The base pairs comprises of the nucleic acid include adenine (A), thymine
(T), cytosine (C) and guanine (G) .
The base pairs contain unique amino acid sequences which represent a
unique trait in organisms. Any alteration in this pair will lead to a different
result or mutation which is why it is very important and has to be rightly
paired .
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Mario and several friends spend a day at the beach. While watching the ocean waves crashing to shore, Mario wonders how much of the world's water is contained in different types of bodies of water such as oceans, lakes, and rivers. He decides to research the percentage of Earth's water found in different locations. Which does his research reveal? Multiple choice question. A) Less than 3 percent of Earth's water is freshwater containing no salt. B) The ice caps located at both poles contain 30 percent of Earth's water. C) Fifty percent of Earth's water is in oceans and the glaciers at the poles. D) Ninety percent of Earth's water is in lakes, rivers, and groundwater.
Answer:
A
Explanation:
The correct answer here would be that less than 3 percent of Earth's water is freshwater containing no salt.
Generally speaking, about 71 % of the earth is made up of water. Out of this percentage, approximately 97 % is found in the oceans with less than 3 % being freshwater. About 68.7 % of the freshwater is locked-up as glacier and ice, 30.1 % is groundwater, while the remaining 1.2 % represents surface and other forms of freshwaters which include ground ice and permafrost, lakes, atmosphere, rivers, swamps and marshes, soil moisture, and the freshwater in living organisms.
The correct option is A.
What is the difference between velocity and acceleration?
A. Acceleration only occurs when speed changes.
B. Velocity is speed in a certain direction. Acceleration is a change in velocity.
C. Velocity tells the amount of acceleration an object is experiencing.
D.Velocity is a change in acceleration. Acceleration is velocity in a certain direction.
Answer:
B
Explanation:
discuss how temperature and amount of precipitation can affect the type of plants and animals found in the tundra biome.
Which statement describes transform boundaries?
Rift valleys are formed.
Mountains are created.
Faults form in the lithosphere.
Plates move toward each other.
The statement that describes transform boundaries is "Faults form in the lithosphere," which is the third option, as transform boundaries occur where two tectonic plates slide past each other in opposite directions.
What are transform boundaries?
Transform boundaries are a type of plate boundary where two tectonic plates move past each other horizontally without being destroyed or created. They occur when two plates slide past each other. This sliding motion results in the formation of cracks or fractures in the lithosphere, which can cause earthquakes. The movement along transform boundaries is typically smooth but can be interrupted by sudden motions that release large amounts of energy and cause earthquakes.
Hence, the statement that describes transform boundaries is "Faults form in the lithosphere," which is the third option.
Learn more about the transformed boundaries here.
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Explain what happens to the energy that is not transferred from one organism to another.
What moon phase will the moon be in on Halloween 2020?
Answer:
The full moon that will be visible on Oct. 31 is called the blue moon because it's the second full moon of the same month -- following the harvest moon of Oct. 1 through Oct. 3.
Explanation:
Which of the following statements are true?
Carrying capacity is what ultimately determines the size of a population.
Disease can spread through populations with a low density better than ones with a high density.
When predators in the area increase in population so does the number of prey.
The size of a population will continue to grow exponentially if there are no limiting factors impacting its
growth.
1 pts
Answer:
Density-independent Regulation and Interaction with Density-dependent Factors. Many factors that are typically physical in nature cause mortality of a population regardless of its density. These factors include weather, natural disasters, and pollution. {so true}
Explanation:
HELP PLEASE! WILL GIVE BRAINLY! Describes a weak, electromagnetic bond between polar molecules. A. Adhesion b. Hydrogen bond. C. Polar covalent bond. D.Ionic bond
Option C, polar covalent bond
It's between polar compounds
The weak, electromagnetic bond between polar molecules is polar covalent bond. Thus, option C is correct.
What is covalent bond?A covalent bond is defined as a chemical bond that includes the sharing of electron pair between atoms.
The pair of electrons are know as bonding pairs and the stable balance of attractive and repulsive forces between atoms.
The properties of covalent bond are mentioned below:
The covalent compounds have low melting points and boiling points.
The covalent compounds do not contain electricity.The covalent compounds are having lower enthalpies of vaporization and fusion.
The covalent compounds are easily catches fire and are more flammable than ionic compounds.The covalent compounds are very soft and flexible.
The physical properties of covalent compounds are that they have lower melting points and electrical conductivity.
Therefore, the weak, electromagnetic bond between polar molecules is polar covalent bond. Thus, option C is correct.
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What is the reason cloth diapers are not a perfect solution?
Answer: It does not absorb better than disposable diaper
Explanation: I use disposable diapers on my six month year old bother. We love pampers.
Check Some flatworms reproduce through fragmentation. What is a disadvantage of this method?
1.) It is a very slow process relative to sexual reproduction.
2.) It is a process that leads to lower genetic diversity than sexual reproduction
3.) It is a process that does not result in many offspring relative to sexual reproduction
4.)It is a much more complex process than sexual reproduction.
Answer:
it is a process that leads to lower genetic diversity than sexual reproduction
Following are the disadvantages of this method:
It is a very slow process relative to sexual reproduction.It is a process that leads to lower genetic diversity than sexual reproduction.Fragmentation is a method of reproduction that occurs when an organism breaks into smaller pieces, which then grow into new individuals. While this process can be efficient in certain circumstances, it has several disadvantages compared to sexual reproduction. One disadvantage is that it is a very slow process relative to sexual reproduction. This is because it takes time for the fragments to grow and develop into new individuals, and there may be many steps involved in this process.
Additionally, fragmentation leads to lower genetic diversity than sexual reproduction, because the offspring are identical to the parent organism, rather than being the result of a mixing of genetic material from two different parents. These factors may make fragmentation a less effective method of reproduction in some circumstances.
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there are a lot of mosquitos in my house what should I do to get rid of them best answer gets brainlyist
Answer:
Kill mosquitoes inside your home. Use an indoor insect fogger or indoor insect spray to kill mosquitoes and treat areas where they rest, also Mosquitoes rest in dark, humid places like under the sink, in closets, under furniture, or in the laundry room.
Answer:
spray your house
Explanation:
Why are topographic maps useful? Give an example of how one might be used.
PLEASE HELP!!!!!!!!!!!!!
Answer:
If you are using them for navigation, they can show you where easier paths might be.
They show us natural water features that we can use to find our way. Water features are in blue. Direction of stream travel can be determined by how the stream encounters the contour lines; the contour lines point upstream. In the example below, the stream runs from east (right) to west (left). The green arrow points at the head of the stream.
Hope this helps
Help me pleaseeee I’ll be thankfulll
Ethan filled 10 cups of the same size with equal amounts of water. He divided the cups into five groups of two cups each. The groups were placed in five different locations around his house. After two weeks, he measured the remaining water to determine how much had evaporated, by measuring how much water remained in each cup.
Answer:
See the answer below
Explanation:
Ethan filled 10 cups of the same size with equal amounts of water. He divided the cups into five groups of two cups each. The groups were placed in five different locations around his house. After two weeks, he measured the remaining water to determine how much had evaporated, by measuring how much water remained in each cup.
What is the dependent (data) variable?
A. Location of cups
B. Amount of time they were left in locations
C. Amount of evaporated water
D. Size of cups
The dependent variable is the variable whose value is dependent on other variables, particularly the independent variable, in the course of experiments. As the independent variable becomes varied during the experiment, the value of the dependent variable also varies along.
Hence, in this particular scenario, the dependent variable would be the amount of evaporated water. This amount would be dependent on the location of the cups around the house which, in this case, would be the independent variable.
The correct option is C.
what is environment
Explanation:
the natural environment
or condition u live for example the land, air, plants , animals.
Special nerve cells in your brain sense a slight increase in the salt concentration of your blood. They send a signal to another part of your brain. Your brain then stimulates you to do something that will return the salt concentration of your blood to normal. What does your brain do?
A.
cause you to eat
B.
cause you to sweat
C.
cause you to drink
D.
cause you to shiver
Answer:
a
Explanation:
Answer:
Explanation:
ITs cause u to drink the first one is wrong
Please help me I do not know what is the answer
Answer:both a and b
Explanation:
cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy and form molecules of ATP which is energy.
How is does the property of cohesion make farming possible?
This biome is near the equator.
A Rainforest
B Temperate Forest
C Grasslands
D Desert
Answer:
The Desert.
Explanation:
since it is in the equator the earths tilt is more shown to the sun.
Answer:
bru it's rainforest
Explanation:
Study the image above. Which of the following should you place on the line labeled "A"?
Answer:
Made up of the House and Senate
Explanation:
A cell is most likely to be a plant cell if it contains: O A. chloroplasts and a cell wall. B. RER and SER. O C. mitochondria and amino acids. OD. DNA and RNA.
A
Explanation:
Only plants cells have chloroplast and a cell wall.
Hope this helps! :)
How are photosynthesis and cellular respiration related?
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
I hope that helps determine your answer.
The product of photosynthesis are the reactants of cellular respiration.
What is cellular respiration?Cellular respiration is the process by which cells convert the energy stored in food molecules into a form of energy that can be used by the cells.
This process takes place in the mitochondria of the cell and involves the oxidation of glucose (sugar) to produce ATP (adenosine triphosphate), which is the main energy source for cellular processes. Cellular respiration has several stages, including glycolysis, the citric acid cycle, and the electron transport chain, each of which contributes to the generation of ATP. The end product of cellular respiration is carbon dioxide and water.
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identify earths neighbors in the solar system by choosing the correct answer
Answer:
Mars and venus
Explanation:
Answer:
The planets are bodies of rock or gas that are named for ancient gods.
Asteroids and meteoroids are made of rock or metal, which often collide with Earth.
The terrestrial planets are most similar to Earth.
The Juno probe is exploring the planet Jupiter.
The energy conversion in cells is called ___.
Answer: cellular respiration
Explanation:
I need help idk if it’s a or c please??
If you construct a model that places a cell with an internal salt concentration of 0.02 M in an
aqueous solution that has a salt concentration of 0.015 M, how could the cell lower internal
pressure? (3 points)
Active transport of water against the gradient
Diffusion of water with the pressure gradient
Osmosis of water flowing from where the solute is least concentrated
Passive transport of water with the gradient
Answer:
As shown
Explanation:
A
Answer:
A
Explanation:
I took the quiz
Giving Brainest! HELP ASAP!
Using personal feelings to explain or describe is being __________________________ .
Group of answer choices
influential
objective
factual
subjective
Answer:
subjective
Explanation:
subjective means opinion
or what you feel about something.
pls mark me brainlest
