Answer:
The cave painting on the image is representing the animals, or rather the environment that was seen by the artists of the painting in their surroundings. We can see that there are wild horses depicted on it, but also a rhino. The wild horses were probably a prey animal, while the rhino was a respected animal and feared one, thus they were avoiding it. The artists that painted it were the Cro-Magnons, early Homo-sapiens in Europe, in what is now France. The reason why it was painted is probably because the artist wanted to depict the environment, but also maybe for teaching the youngsters about the animals from early age, so that they know which ones are to be hunted, and which ones to be avoided.
Our school starts at 10 o'clock change into when question
Which of the following observations would provide the strongest evidence that two plants belong to different biological species?
Answer:They produce viable but sterile offspring.
Explanation:
Nucleophilicity is a kinetic property. A higher nucleophilicity indicates that the nucleophile will easily donate its electrons to the electrophile and that the reaction will occur at the faster rate. The reaction rate also depends on the nature of the electrophile and solvent. Rank the following reactions from fastest to slowest based on the nucleophilicity of the nucleophile
From the fastest to the slowest based on the nucleophilicity of the nucleophiles, the order is represented as:
[tex]\mathbf{(CH_3)_2N^- +CH_3 -Br \to (CH_3)_2NCH_3+Br^- \ }\\ \\ \\ \mathbf{CH_3NH^- +CH_3 -Br \to CH_3NHCH_3+Br^- \ } \\ \\ \\ \mathbf{H_3N^- +CH_3 -Br \to CH_3NH_2 + Br^- \ }[/tex]
What are Nucleophilic functional groups?Nucleophilic functional groups include electron-rich atoms capable of donating an electron pair in order to establish a new chemical covalent bond. The most frequent nucleophilic functional groups are:
Water, Alcohols, Phenols, Amines, Thiols, etcThe protonation state of these functional groups has an effect on their nucleophilicity. Also, the trend of nucleophilicity goes from:
Tertiary,Secondary, PrimaryThe following reactions that we are supposed to find their order is given as follows:
[tex]\mathbf{CH_3NH^- +CH_3 -Br \to CH_3NHCH_3+Br^-} \\ \\ \\ \mathbf{(CH_3)_2N^- +CH_3 -Br \to (CH_3)_2NCH_3+Br^-} \\ \\ \\ \mathbf{H_3N^- +CH_3 -Br \to CH_3NH_2 + Br^-}[/tex]
From the fastest trend of the nucleophilicity of the nucleophile to the slowest, the correct arrangement is as follows:
[tex]\mathbf{(CH_3)_2N^- +CH_3 -Br \to (CH_3)_2NCH_3+Br^- \ \ \ ---(2'' \ ^0) \ \\}\\ \\ \\ \mathbf{CH_3NH^- +CH_3 -Br \to CH_3NHCH_3+Br^- \ \ \ \ ---(1^0) } \\ \\ \\ \mathbf{H_3N^- +CH_3 -Br \to CH_3NH_2 + Br^- \ \ \ --- \ \ \ \ (1^0)}[/tex]
The first reaction has two functional groups of methyl (-CH_3) attached to it which increases its nucleophilicity to the second one which has one methyl functional group attached to it.
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Which factor has brought peace and stability to many southern african countries?
Answer:
Because of Democratic government !
Explanation:
Hope its helps you ! :)The writer is considering adding the following sentence after sentence 14 to strengthen the case that basic income should be more widely accepted. some news outlets suggest that since the trend is growing, it is only a matter of time before bi becomes a reality. should the writer add this sentence after sentence 14 ?
The writer should not add this sentence after sentence 14 because the absence of specific sources or statements from those sources makes the claim of the sentence seems unsupported.
What does strengthening implies?The term strengthen connote to make a thing or an action to be stronger.
Note that the sentence above will not fit into sentence 14 because the absence of specific sources or statements from those sources makes the claim of the sentence seems unsupported.
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peripheral used in a sentence
Answer:
They hadn't traveled far down the trail before she got a peripheral view of the building.
Explanation:
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The object will have a minimum gravitational potential energy at point
Why does the speaker in "the tropics in new york" weep at the end of the poem? question 1 options: he is hungry and cannot buy fruit to eat. He has lost his belief in religion. He is overwhelmed with nostalgia for the home of his past. He has lost his vision and cannot see clearly
The speaker in "the tropics in New York" weep at the end of the poem because He is overwhelmed with nostalgia for the home of his past.
Why does the speaker in the tropics in New York weep?In "The Tropics in New York," is known to be a poem that tells about the memories of the speaker.
The reason why I think the speaker weeps is that The poet is trying to remembering her homeland and as such, he weeps because she misses it.
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Answer:
HE IS OVERWHELMED WITH NOSTALGIA FOR THE HOME OF HIS PAST
Explanation:
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A food worker needs to thaw a package of chicken wings
Answer:
When the frozen chicken is thawed, it should be placed in the refrigerator. The frosted chicken should be placed in a zip-lock bag
The frozen chicken is thawed, it needs to be kept in a refrigerator and the frosted chicken should be placed into a ziplock bag.
What does defrost means ?The deforst or thaw is a piece of snow or ice that is used by the food worker for making and keeping the food items intact and for this they need to be kept in a refrigerator for some time so that they can be processed and hence are stored at certain temperatures. Thus later on moved into a zip bag.
Find out more information out the thaw.
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By applying the strategy of containment, the united states hoped to prevent the
By applying the containment strategy, the United States' objective was to prevent the expansion of the Soviet Union's influence in the world.
What is the containment strategy?It can be understood as a foreign policy strategy to prevent the spread of the communist system, being the policy that guided the Cold war, which took place between the USA and the USSR after the end of the second world war.
Therefore, the containment strategy is a foreign policy that aimed to influence the allies to prevent the strengthening of communism.
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What property justifies the statement ""any real number is always equal to itself.""?
The property that justifies the statement "any real number is always equal to itself." is; Reflexive Property
What is reflexive property?In algebra, the reflexive property of equality is a property of algebra which states that a number is always equal to itself. Thus, if x is a number, then. x = x.
Reflexive properties are also used even in congruency theorems and similarity theorems of triangles.
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Trait theorists are generally more interested in __________ rather than __________. please select the best answer from the choices provided assessing abnormal behavior. . . explaining why behavior occurs explaining why behavior occurs . . . predicting behavioral patterns assessing abnormal behavior . . . describing patterns of behavior describing patterns of behavior . . . explaining why behavior occurs
Trait theorists are generally more interested in explaining why behavior occurs rather than predicting behavioral patterns.
What is Trait theorists?Trait theorists serves as one that focus on the behavior as well as how the behavioroccurred.
Therefore it is more on behavioral patterns which focus on the attitude of individuals.
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Answer:
explaining why behavior occurs.... . predicting behavioral patterns
Explanation:
yea
Big ideas math: record and practice journal (blue) answers
A conditional statement, symbolized by p → q, can be written as an “if-then
statement” in which p is the hypothesis and q is the conclusion. Here is an example.
hypothesis, conclusion,
If a polygon is a triangle, then the sum of its angle measures is 180 .
p q
°
The half life of a radioactive substance is 15 years
Micah is 1 of 28 students in a class. Micah's teacher is going to randomly select 3 students from their class to
visit a classroom of younger students.
What is the probability Micah is included in the group of students chosen?
Answer:
10.71%
The probability of her getting picked is unlikely :)
Explanation:
3/28 = 10.71%
The probability of her getting picked is unlikely
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Note that the probability that Micah is included in the group of students chosen is approximately 0.000305, or about 0.03%.
How to compute the above probabilityMicah's probability of being included in the group of students chosen can be calculated using combinations. There are a total of 28 students in the class, and the teacher is selecting 3 students.
The probability of Micah being chosen can be calculated as:
Probability = (Number of favorable outcomes) / (Total number of possible outcomes)
Number of favorable outcomes = 1 (Micah being selected)
Total number of possible outcomes = Number of ways to choose 3 students out of 28 = C(28, 3) = 3276
Probability = 1 / 3276
≈ 0.000305
So, the probability that Micah is included in the group of students chosen is approximately 0.000305, or about 0.03%.
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The upper limit of the zone of saturation is known as
Max (mass = 15 kg) is hanging from one end of a 13-m long bungee cord that has its other end fixed to a bridge above. The bungee cord has a circular cross section with a diameter of 2. 5 cm, and a young’s modulus of 17 mpa. What is the stress in the bungee cord due to max’s weight?
The stress experimented by the bungee cord due to Max's weight is approximately 299.680 kilopascals.
How to find the stress experimented by the bungee cord
Let suppose that the stress ([tex]\sigma[/tex]), in pascals, experimented by the bungee cord is entirely elastic and uniform. By Newton's Laws we know that the tension ([tex]T[/tex]), in newtons, experimented by the cord equals Max's weight. The stress on the bungee cord is axial and is described by following formula:
[tex]\sigma = \frac{m\cdot g}{\frac{\pi\cdot D^{2}}{4} }[/tex] (1)
Where:
[tex]m[/tex] - Max's mass, in kilograms[tex]g[/tex] - Gravitational acceleration, in meters per square second[tex]D[/tex] - Diameter of the circular cross section, in metersIf we know that [tex]m = 15\,kg[/tex], [tex]g = 9.807\,\frac{m}{s^{2}}[/tex] and [tex]D = 0.025\,m[/tex], then the stress experimented by the bungee cord is:
[tex]\sigma = \frac{(15\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)}{\frac{\pi}{4}\cdot (0.025\,m)^{2} }[/tex]
[tex]\sigma \approx 299679.845\,Pa\, (299.680\,kPa)[/tex]
The stress experimented by the bungee cord due to Max's weight is approximately 299.680 kilopascals. [tex]\blacksquare[/tex]
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The explicit rule for a sequence is given. An=12(43)n−1 enter the recursive rule for the geometric sequence
Answer:
a1=1/2 an=4/3 x an−1
Explanation:
According to the article how are true friends identified
Answer:
True friends can also be your best friends they are identified by being there for you and tell ya every thang
Which term refers to president kennedy's programs for civil rights, women's rights, and aid to the poor?
You get a $60,000 loan for a new dump truck. With the truck, you can generate $500 more business each week at 80% margin. Your interest rate on the loan is 8. 6%. Does the additional margin generated cover the interest payments?
Assuming your interest rate on the loan is 8. 6%. The additional margin generated will cover the interest payments.
Additional margin
Let determine the weekly interest
Weekly interest= 8.6% /12 x 60,000
Weekly interest= $99.23
Let calculate the amount left since the business generates $500 at a margin of 80
Amount left= 500 x 80%
Amount left= $400
Based on the above calculation we can see that the amount of $400 is sufficient enough to cover the $99.23 payments.
Inconclusion the additional margin generated cover the interest payments.
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Dani sells roses in a competitive market where the price of a rose is $8. Use this information to fill out the revenue columns in the table below
Filling the total revenue, average revenue, and marginal revenue table for Dani is as follows:
Quantity Total revenue ($) Average revenue Marginal revenue
of roses
1 $8.00 $8.00 $8.00
2 $16.00 $8.00 $8.00
3 $24.00 $8.00 $8.00
4 $32.00 $8.00 $8.00
5 $40.00 $8.00 $8.00
How to calculate the different revenues?Total revenue = Quantity x Sales PriceAverage revenue = Total revenue/QuantityMarginal revenue = Difference between Initial Revenue and Current RevenueData and Calculations:Quantity Total revenue ($) Average revenue Marginal revenue
of roses
1
2
3
4
5
Price per rose = $8
Thus, when Dani sells 5 units of roses, he will get a total revenue of $40, though the marginal and average revenues remain at $8, respectively.
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In which one of the following situations will there be an increase in kinetic energy?
The situation that will result to an increase in kinetic energy is when a ball starts from rest and freely rolls downhill.
What is a kinetic energy?A kinetic energy refers to an energy generated by an object as a result of the its motion.
When a ball starts from rest and freely rolls downhill, its generates an energy from its free motion.
Therefore, the Option B is correct.
Missing options "A) A projectile approaches its maximum height, B) A ball starts from rest and freely rolls downhill, C) A box is pulled across a rough floor at constant speed, D) A satellite travels in a circular orbit around the earth at fixed altitude, E) A stone at the end of a string is whirled in a horizontal circle at constant speed."
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Which one of these might appear in an evalution of a poem
Write down an expression for the range of k consecutive integers
What is the length of line segment mn? 4 units 6 units 18 units 24 units
A line segment is regarded as a portion of a line that has two endpoints. The length of line segment MN is 18 units.
What are line segments?A line is known to be kind of uni-dimensional shape that is said to range from both directions that is said to never ends. A line segment is said to be a portion of the line and it is said to be the smallest distance between the two points that are said to be measured.
Note that if 2 chords intersect in a circle, what is gotten of their segments are said to be equal.
Therefore 9 * (x +1) = 15 * (x -1)
9x +9 = 15x -15
24 = 6x
x = 4
Therefore:
Line AD = 9 + x + 1
Line AD = 14
Line MN = 15 + x -1
Line MN = 18
So the correct option is 18 units.
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Answer:
18
Explanation:
Which monomials are perfect squares? select three options
Answer:
what are the options
Explanation:
what are the options
What was one of the tests that lavoisier performed to prove the law of conservation of mass?
Answer:
Lavoisier carefully checked that the mass of reacted water (the mass loss of the retort subtracted from the mass increase of the collecting bottle) equaled the total mass of hydrogen collected in the bell jar and oxygen calculated from iron weight increase.
Explanation:
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Find the volume of the triangular pyramid to the nearest whole number. a) 72 units3 b) 96 units3 c) 144 units3 d) 288 units3
Answer:
the answer is 96 units
Explanation:
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Message left on voicemail: "hi nikki! just landed at the airport. How about dinner this evening if you're available. Call me!" which of the following characteristics of useful information is absent in the situation described above?
Answer:
Option C
Explanation:
Options:
A) relevant
B) reliable
C) complete
D) timely
E) understandable
F) verifiable
G) accessible
Your answer is option C or "complete." The person who is messaging Nikki did not complete the voicemail. She didn't tell Nikki where to meet for dinner or at what time she just said this evening which gives Nikki no information on when and where to meet this person for dinner. This is a incomplete voicemail which means one of the important characteristics of useful information missing from this voicemail is the complete voicemail for Nikki.
Hope this helps.