Homework answers and tutorials

Waiting for answer Can an absolute value equation ever have and infinite amount...
Yes, it can; for example, ##x=x## has the solution set ##[0,infty)##, which contains infinitely many solutions. I hope that this was helpful.
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Waiting for answer How many yard in marine mile?
International Nautical mile is 2025 yards. 2025 yards.
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Waiting for answer What does S configuration mean?
R and S are used to describe the configuration of a chirality center. Chirality center meaning that there are 4 different groups attached to one carbon. To determine whether the chirality center is R or S you have to first prioritize all four groups connected to the chirality center. Then, rotate th...
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Waiting for answer How many light minutes is the Earth away from the Sun?
is 8 light minutes away from Earth. Because the Sun is eight light minutes away from the Earth, that means that it takes light eight minutes to get from the Sun to the Earth, where...
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Waiting for answer Why water is considered as pure substance whereas air is con...
Water is considered pure because it only consists of one type of molecule which is ##H_2O## whereas air is a mixture of Nitrogen and Oxygen and many other which is why its impure. H...
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Waiting for answer How do you verify the identity ##(2tanx)/(1+tan^2x) =sin2x##...
Use the fact that: ##tanx=sinx/cosx## and ##sin2x=2sinxcosx## So: ##2sinx/cosx*1/(1+sin^x/cos^2x)=2sinxcosx## ##2sinx/cosx*cos^2x/(cos^2x+sin^2x)=2sinxcosx## ##2sinx/cancel(cosx)*cos^cancel(2)x/(cos^2x+sin^2x)=2sinxcosx## But ##sin^2x+cos^2x=1## So: ##2sinxcosx=2sinxcosx##
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Waiting for answer What hydrogen bonds join cytosine to guanine?
There are three between cytosine and guanine. One between the NH₂ group of cytosine and the C=O group in guanine One between the pyridine N atom in cytosine and the NH group in guanine One between the C=O group of cytosine and the NH₂ group of guanine Note: The GC connections in DNA are st...
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Waiting for answer What is the definition of complete subject and complete pred...
Subject is the one who the verb refers to. Predicate is what is told about the subject. The children are very hungry. The children is the subject because the verb is related to it. T...
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Waiting for answer How do you convert gallons to milliliters?
You convert gallons to litres and then to millilitres. I will use Imperial gallons. (The conversion factor for US gallons is 1 US gal = 3.785 L). EXAMPLE: Convert 10.0 gallons to millilitres. 10.0 gal × ##(4.546 L)/(1 gal)## = 45.5 L 45.5 L × ##(1000 mL)/(1 L)## = 45 500 mL = 4.55 × 10⁴ mL Not...
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Waiting for answer How do you find the area of circle using integrals in calcul...
By using polar coordinates, the area of a circle centered at the origin with radius ##R## can be expressed: ##A=int_0^{2pi}int_0^R rdrd theta=piR^2## Let us evaluate the integral, ##A=int_0^{2pi}int_0^R rdrd theta## by evaluating the inner integral, ##=int_0^{2pi}[{r^2}/2]_0^R d theta=int_0^{2pi}R^...
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Waiting for answer What must happen for a protostar to become a star?
for a proto star to be star it needs to gain enough mass in order to have enough pressure to undergo nuclear fusion . mass is a great factor in the stability of a star. if this state...
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Waiting for answer How does the respiratory system work with the muscular syste...
The and the are codependent. The respiratory system would not work without the muscular system. The term respiration is characterized by gas exchange. Gas exchange first occurs at...
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Waiting for answer In what way is a taste aversion different from other example...
A taste aversion can develop after a single exposure while most other examples of classical conditioning require many exposures. Classical conditioning involves the pairing of a prev...
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Waiting for answer What are example of archae?
Archeabacteria is called ancient Examples : Methanogens which lives in rumen gut of cows, buffaloes in order to digest the cellulosic materials in what they where ate.
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Waiting for answer HCN toxixity is:? 1 change osmotic pressure inside the cel...
HCN toxicity is caused by covalent bonding to heme iron. A hydrogen cyanide concentration of 300 mg/m³ in air will kill a human within 10–60 min. The toxicity is caused by the cyanide ion, which binds irreversibly to the iron atoms in the heme subunit of cytochrome c oxidase. This is an electron t...
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Waiting for answer Where was the Confederate capital located?
Richmond, Virginia Montgomery, Alabama was capital for a short time until Richmond was agreed upon.
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Waiting for answer The density of gold is ##19.3 g####/####cm^3##. What is the...
The volume is ##"37.0 cm"^3 "Au"##. Each side is ##root(3)(37.0"cm"^3)~~"3.332 cm"^3"## Given/Known ##=####"19.3 g/cm"^3"## Mass##=####0.715cancel"kg"xx(1000"g")/(1cancel"kg")="71...
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Waiting for answer The sum of the interior angles of a polygon is 4860 degrees....
The polygon has 29 sides. The sum of the interior angles of a polygon with n sides is 180*(n2). Therefore, 180*(n2) = 4860 n2 = 27 n=29
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Waiting for answer What is the difference between a reciprocal of a number and...
The product of a number and its reciprocal is always ##1##. Let ##a## be any number. Assume that ##x##is the reciprocal of ##a##. From definition, ##a####xx####x=1## So, ##x=1/a## Hence, the reciprocal of ##a## is ##1/a##. The reciprocal of ##5## is ##1/5##. The reciprocal of ##2## is ##1/...
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Waiting for answer How does a polar covalent bond differ from an nonpolar?
In a polar covalent bond (for example water), the electrons shared by the atoms spend a greater amount of time, on the average, closer to the Oxygen nucleus than the Hydrogen nucleus and nonpolar covalent bonds are a type of bond that occurs when two atoms share a pair of electrons with each other....
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