Answer:
[tex]5[/tex]
Explanation:
[tex]-3x^{2} -5x+7[/tex]
→ Substitute in x = -2
[tex]-3(-2)^{2} -5(-2)+7[/tex]
→ Simplify
[tex]-12 +10+7[/tex]
→ Simplify further
[tex]5[/tex]
In the following equation, how many atoms of Oxygen (O) are present in the products
1
2
3
6
Answer:
3
Explanation:
jkljkl;jkl;jkl;jkl;jkl;klj;jkl;jkl;jkl;jkl;jkl;jkl;jl;j;
How is the cell membrane like a mixture?
Answer:
There are many components that make-up a cell membrane including a mixture of lipid, proteins, molecules, and carbohydrates,
If the atom had one less electron it would be a
Answer:
If it has fewer electrons than protons it has a net positive charge and is known as a cation. The ionic state may be denoted as a following superscript (e.g. O2-, Fe2+). The common ionic states of a atom are known as its valences.
Explanation:
Try it
12ty
(-1.5, 10.4)
For which values is the graph decreasing? Check all
that apply.
8
between x = -3 and x = -1.5
between x = -1.5 and x = 0
O between x = 0 and x = 1.5
.x
between x = 1.5 and x = 3
-2
2.
4
-4
-8
(1.5, -10.4)
-12
Answer:
B and C
I just took the test
HELP ASAP PLEASE
Which of the following mechanical waves have the same energy?
Car battery
Compressed spring
Glowing incandescent lightbulb
Nucleus of uranium atom
Answer:
Car battery is the answer
Describe how the Sun is able to release the right amount of heat and energy for the right amount of time to support the existence of life on Earth. Record notes on star life cycles and what makes Earth habitable below:
Answer:
The sun produces a lot of heat but it also really works on how far away the earth is to.If the earth was any closer the earth would be MUCH HOTTER.
Explanation:
what is the structure and function of the mitochondria be sure to relate them
How is growth different from development?
Answer: Growth is the increase in size and development is a process in transformation.
Explanation:
The area where two or more plates meet is called a: a.fault b.plate edge c.plate boundary d.ring of fire explain for every answer PLEASE I NEED THIS NOW IT IS DUE TODAY!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I think the answer is C. Plate Boundary
Explanation:
I need help please kdjndnd
Answer:
It's B
Explanation:
It houses the genes for the cell
27 AL 3+
13 how many protons, electrons and neutrons
True or False (Circle the correct answer choice) Scientists propose explanations that are testable
Answer:
True
Explanation:
Diatoms are one of the most common types of phytoplankton in marine habitats. Like plants, diatoms contain chlorophyll and produce glucose from which of the following?
CO2 and O2
CO2 and H2O
O2 and ATP
ATP and H2O
Answer:CO2 and H2O
Explanation:
Diatoms produce glucose from CO2 and H2O.
The sun is the only source of energy in the ecosystem. Plants can trap this energy from the sun through the process of photosynthesis. Photosynthesis is the process by which green plants use energy from the sun to combine carbon dioxide and water to form glucose.
Hence, like plants, diatoms contain chlorophyll and produce glucose from from CO2 and H2O.
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. A snail travels 20 cm in 20 minutes. How fast was the snail traveling in cm/min?*
HELP ME PLZZZZZZZZ SUPER STRUGGLIN
Identify the characteristics of life. Check all that apply.
Answer:
* Having cells
* Use energy
* Reproduce
* Respond to the environment
* grow and develop Cells
Explanation:
Answer:
-Has one cell or more
-Use energy
-Reproduce
-Grow and develop
-Respond to the environment
In general, what is photosynthesis?
Answer:
Photosynthesis is when plants use the sun to create sugars, which are like food to the plant.
Explanation:
What is a gene and why are they important?
Answer: A gene is a basic unit of heredity in a living organism. Genes come from our parents. We may inherit our physical traits and the likelihood of getting certain diseases and conditions from a parent. Genes contain the data needed to build and maintain cells and pass genetic information to offspring.
Explanation: Its the answer.
Explanation:
genes are basic units of inheritance which occupy specific positions in chromosomes.
genes determine the specific characters of an organism
What element is the most abundant in photosynthesis
Answer:
It would most likely be oxygen
Ill give brainless if correct
Answer:
B
Explanation: The mass, volume, and density would stay the same
Compare and contrast animal fats and plant and fish oils
Explanation:
On the other hand, lipids with unsaturated fatty acids (unsaturated fat) tend to be liquid at room temperature and thus they are called 'oils '. Lipids are present in all living organisms including Archaebacteria. ... Fats of animal origin are called as 'animal fat ' and those of plants are called 'plant fats'.
List the 6 characteristics of living things
Answer:
Explanation:
6 characteristics of living things are:
It responds to the environment.
It grows and develops.
It produces offspring.
It maintains homeostasis.
It has complex chemistry.
It consists of cells.
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1
When placed in water, oil does not dissolve and stays separate. This means oil is_____ and ____.
Answer:
when placed in water, oil does not dissolve and stays separate. this means oil is immiscible and inorganic
Explanation:
When placed in water, oil does not dissolve and stays separate. This means oil is a non-polar and hydrophobic substance.
What are oils?Oils are organic compounds. They are nonpolar chemical substances that are made up of hydrocarbons. They're flammable, and they're extracted from vegetables plants, and animals.
Oils are not soluble in water because they are hydrophobic in nature, doubt a layer of oils is made of made up of a hydrophobic chain that is insoluble in water.
Substances are nonpolar substances are those substances which are insoluble in water. Oil is one of them. Polar substances are dissolved in water because they have hydrophilic ends.
Thus, oil does not dissolve in water and remains separate. Oil is a non-polar, hydrophobic substance, according to this.
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Which of the following events can result in inheritable genetic variations in organisms?
mutation of DNA by environmental factors
genetic recombination during meiosis
occurrence of viable errors during DNA replication
translation errors during protein synthesis
Answer:
Its A
Explanation:
Answer:
its D bc u got to look at it nd its not A or C so its B or D u pick B or D
Explanation:
i hope its help u
Patrick loves bubble gum and would like to be able to blow bigger bubbles than anyone else
in Bikini Bottom. To prepare for the Bikini Bottom Big Bubble Contest, he bought five different brands of
bubble gum and needs your help to find the brand that creates the biggest bubbles. Write an experiment to
test the bubble power of the bubble gum brands and help Patrick win the contest.
Answer:
Abstract:
The purpose of the experiment was to determine which brand of bubble gum could inflate the most under a given set of controls.
5 brands were tested under controlled circumstances such as:
- Zero wind space
- Consideration was given for the bubble gum that could achieve the highest size given the maximum chew of 40 times.
- to ensure that a reasonable average was given for each brand, the test was repeated thrice per brand the size per bubble gum was recorded and the time and the average computed.
Introduction:
In this experiment, the brand of bubble gum with the ability to inflate to the biggest size was tested
Hypothesis
The bubble gum with the biggest average size is the best bubble gum to enter the competition with. It guarantees that Patrick's chance of winning under very stringent circumstances is guaranteed.
Procedure
First, Patrick must create a table with 6 columns and 3 rows.
the first column will be the Serial number sectionThe topmost row of each of the five columns will be labelled with one brand of gumPatrick will need an assistant who will help to measure the sizes of each bubble and also act as a time-keeper. For each brand of gum, Patrick will chew for at least 40 times before he starts to inflate them.The timekeeper will, with the help of a stopwatch, measure how long it took to inflate a brand of gum. Each brand will be inflated at 3 times. Each result will be recorded in the rows under the column for that brand.In order to further ensure that there is control, after each inflation, Patrick must chew each gum for 20 timesThe experiment must be carried out in a room that is not windyMaterials
StopwatchElectronic or Manual SpreadsheetIf Manual Spreadsheet then a writing material will be requiredAssistant for observing and recording the time and size of each inflationA mirror this is optional given that there is an assistanta well-lit room void of fan or windA calculator if a manual spreadsheet is used.
Conclusion
Here Patrick will indicate the result of the experiment and calculations.
Cheers
An engineer is developing a new prosthetic leg to help patients who have lost limbs to walk. The engineer is focused on making the best device possible to address this medical need. The current device design will cost $I0,000 to manufacture, but the cost ofthe item cannot exceed $8,000. How should the engineer approach this problem using the engineering design process?
Answer:
the engineer needs to consider alternatives for all of the areas of the design process that are considered costs
Explanation:
In order to accomplish this, the engineer needs to consider alternatives for all of the areas of the design process that are considered costs. This includes materials, marketing, manufacturing, etc. Many times the material that is being used alone can skyrocket the cost of making a specific product. Therefore changing to a new material may lack some of the wanted benefits but will reduce the overall cost. Manufacturing techniques can also drastically reduce costs by simplifying the process you save on electricity costs and worker wages, while still outputting the same amount of product, which in term reduces the overall costs of the item.
As you are exposed to high amounts of CO over a period of time your available hemoglobin becomes unable to bind to O2 because it is bound to CO explain what would happen to cellular respiration and what overall effect this would have on the organism
Answer:
high enough quantities of CO would cause Cell respiration to stop and eventually cause the organism to die
Which of the following are the large molecules that are broken down into smaller molecules during digestion?
Answer:
Mechanical digestion can only break up the food particles into smaller pieces. A chemical digestion process called enzymatic hydrolysis can break the bonds holding the molecular 'building blocks' within the food together. For example, proteins are broken down into their 'building block' amino acids.
Explanation:
Fats, proteins, and carbohydrates are macromolecules that are broken down into smaller molecules during digestion.
What is digestion?The term "digestion" describes the process by which food is broken down into smaller pieces that can be absorbed into the bloodstream.
The breakdown of food into smaller bits, known as mechanical digestion, takes place in the mouth. Chemical digestion, on the other hand, takes place in the gastrointestinal tract when the meal is broken down into small molecules by digestive enzymes. Digestion begins from the buccal cavity.
Macromolecules such as fats, carbohydrates, and proteins, are broken down into their monomeric form. Thus, this four are the large molecules broken down into smaller molecules during digestion.
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Which of these structures would be found
in a plant cell, but not in an animal cell?
A) Cytoplasm
B) Nucleus
C) Mitochondria
D) Cell wall
Answer:
Cell wall
Explanation:
Answer:
D) Cell Wall
Explanation:
Cell walls provide plant cells with stength and protection against mechanicat and osmotic stress.
Do streams have high or low biodiversity
Answer:
High
Explanation: