What are the solutions to the equation x2 + 4x + 5 = 0?
Answers
Answer:
-1, -4
Explanation:
\(x^2+4x+5=0\)
Factoring, you get:
\((x+4)(x+1)=0\)
To find what x can be, you need to realize what could make this equation true. To set the left side equal to 0, either one of the terms in parentheses must be equal to 0. To do that, x must be the negative of the other term, so that they can cancel each other out. Therefore, x is -4 and -1. Hope this helps!
Answer:
-1,-4
Explanation:
Related Questions
What does n equal for one shell ...... Hiiiiiiiiiiiiiiiiii
A. 2
B.8
C.14
Answers
Answer:
B
Explanation:
the equal of the shell is b
The three cyclists shown below are all traveling at a speed of 13 m/s, but only one cyclist has a changing velocity. The orange cyclist is on the curve, and the green and blue cyclist are on the straight away. Select the rider that has a changing velocity.
(btw the extra tab is to cover my info)
Answers
Speed is distance/time
Distance=length of path travelled not taking into account direction.
For example if you walk North 5 meters and walk south 6 meters
Then your change in position(displacement) is 1 meter south but your distance travelled is 11meters.
I know this is a terrible explanation and if you can't understand I can try to expand on it further.
The orange one is changing direction while the rest cyclists are increasing displacement.
What is Velocity?Velocity is defined as the directional motion of an object as an indication of the rate of change of position as observed from a particular frame of reference which is measured by a particular standard of time. Velocity is the vector quantity as it has both direction as well as direction.
Velocity is explained as the displacement/time where the displacement being the change in position. In the above given example, the orange color cyclist's position is not changing as he is changing direction.
Thus, the orange one is changing direction while the rest cyclists are increasing displacement.
Learn more about Velocity, here:
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What is most likely to occur during a chemical reaction?
a Molecules of the original substance are lost. b New atoms are created. c The original substance maintains its properties. d Mass is conserved.
Answers
During a chemical reaction, the most likely occurring is mass conservation. According to law of conservation of mass, total mass in a reaction is conserved.
What is law of conservation of mass?According to the law of conservation of mass, the total mass in a chemical reaction or in a physical change is conserved. Simply, mass is neither created nor destroyed.
When a chemical reaction takes place, no new atoms are created and the properties of the reactant species cannot be maintained after reaction.
Molecules of any reactant is not lost during a reaction. The total mass in the reactant side of a balanced reaction will be equal to the total mass in product side.
Therefore, the mass conservation is likely to occur during a chemical reaction. Thus, option d is correct.
To know more, about law of conservation of mass, refer the link below:
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What is an ellipse please help)
Answers
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.
Maybe they might use that math thing for Science.
How to work out the relative mass of potassium? What is the calculation? ( explained very easily )
Answers
Answer:
39
Explanation:
Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.
———————————
(1/12)th Mass of one C12 atom
PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS AND A THANKS!!
What is the relationship between "freezing point" and "melting point"?
**Explain your thinking below using quotes from the text.**
~You will get reported if you answer with something else~
Answers
Answer:
The freezing point of a substance is the same as that substance's melting point. At this particular temperature, the substance can exist as either a solid or a liquid. At temperatures below the freezing/ melting point, the substance is a solid.
Explanation:
edge 2021
Answer: The relationship between freezing point and melting point is that freezing point is at the temperature of when a liquid freezes and melting point is at the temperature when a solid melts which are both at the same temperature
Some quotes from the text to support this is that: "Freezing point is the temperature at which a liquid freezes and melting point is the temperature at which a solid melts.
PLS HELP (science)
Match the following molecules with the number of atoms they contain.
1. 2Fe
seven
2. 2Al 3O 2
eight
3. 4O 2
two
4. 5C
five
5. H 2SO 4
ten
Answers
Answer:
hello I will answer ur question if u answer mine
Explanation:
2. Ten
3. Eight
4. Five
5. Seven
Just count the number number of substances, the subscript(number at the bottom) tells you how many of it there is. Then you check if there is a coefficient(number in front of all the substances) and if there is a number you multiply you previous answer by it. The coefficient tells you how many molecules there is. Your final answer is the number of atoms!
Match these items.
1. imprint of plant or animal
original-remains fossil
2. undecayed plant or animal part
carbonized fossil
3. replaced by a mineral
petrified fossil
4. only carbon remains
cleavage
5. mountain
geology
6. from magma
metamorphic
7. from physical and chemical changes
igneous
8. sandstone
print fossil
9. helps identify rocks
landform
10. science of Earth
sedimentary
Answers
1. print fossil
2. carbonized fossil
3. petrified fossil
4. cleavage
5. landform
6. igneous
7. metamorphic
8. print fossil
9. geology
10. sedimentary
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The print fossil, original-remains fossil, petrified fossil, carbonized fossil, landform, igneous, metamorphic, sedimentary, cleavage, and geology are the respective matches as given in the question.
Print fossil is imprint of plant or animal and basically known as fossil impression. Original-remains fossil comprises of the original tissues and parts of organism and undecayed plant or animal part. Petrified fossil is replaced by a mineral. Carbonized fossil is only carbon remains. Landform is a mountain. Igneous is from magma.
Metamorphic is from physical and chemical changes. Sedimentary rocks are sandstone. Cleavage helps to identify rocks. Geology is the study of science of earth.
Learn more about rocks and fossils:
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Please draw a diagram of how a magnetic field works around a magnet. Please label.
Answers
Mark me Brainly
Ruby has observed that plants in her garden vary in height. She wants to investigate whether a plant species (species A) grows faster than the other garden species (species B, C, and D). Select the statement that describes Ruby gathering enough evidence to support a scientific explanation concerning plant growth rates.
Note: Consider reviewing how Ruby developed her conclusion on page 8 of this lesson to select the best answer.
(1 point)
Responses
Ruby measures the heights of several species A, B, C, and D plants for a week under different conditions and finds a journal article that describes the growth rate of species A.
Ruby measures the heights of several species A, B, C, and D plants for a week under different conditions and finds a journal article that describes the growth rate of species A.
Ruby measures the height of a species A plant for a week and finds an anonymous gardening blog that describes the growth rate of species A.
Ruby measures the height of a species A plant for a week and finds an anonymous gardening blog that describes the growth rate of species A.
Ruby measures the heights of several species A, B, C, and D plants, each species for one week at a time for four consecutive weeks.
Ruby measures the heights of several species A, B, C, and D plants, each species for one week at a time for four consecutive weeks.
Ruby measures the heights of several species A, B, C, and D plants for a week under the same conditions and finds journal articles that describe the growth rates of each species. Brainliest
Answers
Answer: Tens place.
Step-by-step explanation: hmm wait one moment
Hope this helped!
George Washington Carver received _____ from God during early morning walks in the woods.?
1. Guidance
2. Inspiration
3. Finances
4. Solutions
(There more than one answer.)
Answers
Answer:
1. Guidance
2. Inspiration
I think this is right hope it helps
please help
I've finished all my other questions but I'm really stuck on these two
Answers
Answer: 66.66 / 66.67 / 66 2/3 hydrogen 33.33 / 33 1/3 oxogen
for question e
in grams of course
hydrogen: 33.33/33 1/3 oxogen
1. the rate of change in an object's position over time is called what
2. the type of energy that is the sum of kinetic and potential energy at any given time is what
3. A push Or pull that can change the motion of an object (examples: magnetic force, frictional force. Please Help me this is due tomorrow
Answers
Answer: 1 . velocity 2. total mechanical energy. 3. magnetic force
Answer:
1. Rise over run, slope, or velocity
2. Mechanical Energy
3. Temperature
It is a broad question
What are all the breeds of dogs and how many breeds of dogs are there?
Answers
Answer:
In the United States alone, the AKC's dog breed list currently includes 190 dog breeds. Worldwide, the FCI lists 360 officially recognized breeds.
Explanation:
There are approximately 400 separate breeds of purebred dogs worldwide. A purebred dog is considered to be one whose genealogy is traceable for three generations within the same breed
There are currently more than 340 different breeds of dogs recognised throughout the world.
In 1990, the northern spotted owl was listed as endangered. Because of this, millions of acres of forests in the Pacific
Northwest became protected habitat. This stopped the timber industry from being able to cut down trees there. Which
of these was MOST LIKELY responsible for this?
A)
Clean Air Act
Eliminate
B)
Species Survival Plan
C)
Endangered Species Act
D)
Resources Conservation and Recovery Act
Answers
Answer:
the endangered spices act
Explanation: The US Endangered Species Act (ESA) is our nation's most effective law to protect at-risk species from extinction, with a stellar success rate: 99% of species listed on it have avoided extinction.
Answer:
C
Explanation:
The speed at which a nitrogen molecule’s particles are moving increases. What will happen to the thermal energy of this molecule?
A) The thermal energy of the molecule will increase.
B) The thermal energy of the molecule will not change, but its mass will change.
C) The thermal energy of the molecule will not change, and its mass will remain the same.
D) The thermal energy of the molecule will decrease.
Answers
Answer
The thermal energy of the molecule will increase.
Explanation:
Increasing the speed at which the particles are moving cause atoms and molecules to move faster and collide with each other. This increases the thermal energy.
What is the property that allows the oil and vinegar to appear separated in this salad dressing and to each go to the top/bottom of the bottle. Is this a chemical or physical property?
Answers
Answer:
physical
Explanation:
How does being able to understand the interactions of natural systems, such as weather, benefit society? How are the scientific practices of analyzing data and observation helpful in understanding how natural systems work? Record your evidence.
PLS HELP ME I'LL GIVE U BRAINLIES IT U DO JUST PLS HELP & A THANKS & A % STAR REVIEW-
Answers
Answer:
we can work together to create less deaths from extreme weather. gives us a better understanding of how they happen, around when they can happen.
Explanation:
can praseodymium conduct electricity
Answers
Answer:
praseodymium can conduct electricity as it is one of it's conductivities
I am an element that has no luster, brittle, and is a poor conductor of electricity. What element can I be?
Answers
Answer: Oxygen
Explanation:
Oxygen is not a good conductor, it is brittle, and has no luster.
Is there only one way to conduct a scientific experiment? Explain why or why not.
Answers
Answer:
no
Explanation:
because to conduct an experiment you would have to go through the process more than once to compare them to find the best soulution or get the best results
There are multiple types of experiments, one of the few things that they have in common is that they all provide the scientist with data. For a specific experiment, or question, the most reliable answer is one that has been tested multiple times. Meaning that a test needs to be conducted more than 2 times to be completely finished.
What was one was one important impact of Supreme Court's ruling in Bush v. Gore
Answers
Answer: the answer is b or c
Explanation:
I took it
Do you think rayon when burnt will stick to the body like other synthetic fibers?
Answers
please help me!!!!! fill in the blanks
Answers
Answer:
i also wish i was able to help
Explanation:
but i reallly need sum points
Metaphase
2 chromatids
Anaphase
Telophase
2 new nuclei
Still dividing
pls i need answers to the 1st, 2nd, and 3rd question
Answers
I believe number one has 2 valance electrons
number 2 has 1 valance electron
and number 3 has 8 valance electrons
valance electrons are the electrons on the outermost ring
Help I don’t know what I should choose heelppp
Answers
Answer:
It is either c or d. Hope this helps. Please tell me if I was right or wrong.
Explanation:
Answer:
it would be air, oil, water so non of the above is my answer
Why is it necessary to ensure that unreacted chlorine gas is passed into a fume cupboard when reacting with alumnium?
Answers
WHOEVER ANSWERS FIRST GETS BRAINLIST
Answers
Which ecological relationship is best represented by this graph?
Note: Species A's population slightly decreases and Species B's population significantly increases over time.
1: Mutualism
2: Commensalism
3: Parasitism
Answers
3
Explanation:
Number 1 and 2, Are good things.
if one is decreasing and the other is benefiting. Otherwise, Here as number 3.
What is the name given to this group of elements?
a.
halogens
c.
transition metals
b.
alkali metals
d.
noble gases
Answers
Answer: The answer is A. Halogens
Explanation:
I hope this helps you :)