Homework answers and tutorials

Waiting for answer What is the difference between epithelium and epidermis?
The Epidermis is a type of epithelium tissue. Epithelium a type of tissue (the others being Muscle, Connective and Nervous) that lines internal and external surfaces. They are typica...
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Waiting for answer How is gold formed in the earth?
It isn't Gold is formed in the heart of supernovae as part of the life cycle of a star. A star's life can be divided roughly into three stages; 1 Pre Main sequence, this is when a...
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Waiting for answer In what anatomical position of the body is the heart located...
The heart is located behind and slightly left of the sternum, between the two lungs, and enclosed in a sac called the pericardium. In the human being the heart lies just behind and...
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Waiting for answer What is the difference between (fo(goh)(x) and ((fog)oh)(x)?
is associative, that is ##(f@(g@h))(x) = ((f@g)@h)(x)## There is no difference in the result, though the steps may be expressed differently. ##(f@(g@h))(x) = f(g(h(x))) = ((f@g...
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Waiting for answer What is vsepr theory based on?
The theory is based on the idea that electrons repel each other and try to get as far apart from each other as possible. You can read an excellent summary of the theory at http://www.nyu.edu/classes/tuckerman/adv.chem/lectures/lecture_11/node9.html Once you have drawn the Lewis structure for a...
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Waiting for answer Is your appendix on the left side or right side of your body...
Right Side Here is a diagram showing the position of the appendix in body : As we can see from the diagram, the appendix is located in right lower part of our abdomen.
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Waiting for answer What are the advantages of relative dating over absolute dat...
Since relative dating can easily be verified by superposition (the younger bed over the older one), intrusion (the intrusive being younger than the intrusive rock), and use of index fossils (younger fossils in a rock layer make that layer younger than another containing older fossils), relative dati...
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Waiting for answer How do astronomers describe the scale of the universe?
If you're asking about the astronomical unit used for measurement, Kiloparsecs are usually used. The term parsec is derived from PARallax and arcSECond. A parsec is the distance at w...
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Waiting for answer How do you evaluate ##csc^1(1)## without a calculator?
##csc^1 (1)=pi/2##. Recall the Defn. of ##csc^1## function : ##csc^1 x=theta, x ge 1 iff csc theta=x, theta in [pi/2,pi/2]{0}##. We have, ##csc(pi/2)=1", where, "pi/2 i...
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Waiting for answer What is the reference angle for ##(7pi)/9##?
##pi/2 (7pi)/9 pi## So the reference angle for ##(7pi)/9## is ##pi  (7pi)/9## ##=(2pi)/9##
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Waiting for answer An italian sausage is 9 inches. The chef needs to cut it int...
##13 ##pieces can be cut. If the question sounds a bit confusing at first, make one similar to it, but with easy numbers. A sausage is 10 inches long and needs to be cut into pieces...
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Waiting for answer What were Kublai Khan's strengths, weaknesses, and failures?
Fighting, winning, ruling, and losing, His strengths were winning wars by using all kinds of tactics and keeping roads safe and organizing great armies. His weaknesses were with act...
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Waiting for answer How do metaphors and extended metaphors differ?
Metaphors will often only involve one or two comparisons, while extended metaphors can cover pages or even entire stories. Metaphors are simple comparisons. They only compare a few t...
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Waiting for answer Calculate the equivalent resistance of the combination of th...
The total resistance is 1ohm When resistors are arranged in series the total resistance can be calculated as the sum of all the resistors in the series. When the resistors are arrang...
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Waiting for answer Why does the anode carry the negative charge in galvanic cel...
Electrons flow into the anode in a galvanic cell and out of the anode in an electrolytic cell First, understand that the anode is defined as the electrode at which oxidation occurs a...
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Waiting for answer How do you convert 0.6 (6 being repeated) to a fraction?
##0.bar(6) = 2/3## Multiply by ##10## to shift one place to the left and subtract the starting number to cancel out the repeating decimal. To do this multiply by ##(101)##: ##(10...
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Waiting for answer The mandible and cervical vertebrae are examples of what typ...
I would say both are examples of IRREGULAR bone. Such bones are made of spongy bony tissue.
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Waiting for answer How Do I form IF5 in the Lewis Theorie to develop it with th...
There are several steps that help us find the lewis structure of iodine pentafluoride. 1)Count the . ##I=(1*7)=7## I ##F_5=(5*7)=35## valence electrons F 7+35=42 total valence electrons 2)Form the skeletal structure and add only a single bond (2 electrons) between the central and non central at...
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Waiting for answer How do I solve 2x+5y=7 (solve for y)?
##y=(2x+7)/5## ##2x+5y=7## isolate 5y by adding 2x to both sides: ##= 5y=2x+7## divide both sides by 5: ##y=(2x+7)/5##
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Waiting for answer Nate made a model of the USS Massachusetts Battleship that i...
Nate used a scale of ##3## feet:##681## feet which is: ##3/168 = 1/56## or a scale of 1:56
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