Homework answers and tutorials

Waiting for answer What is the difference between the graph of a exponential gr...
is increasing Here's ##y=2^x## : graph{y=2^x [20.27, 20.28, 10.13, 10.14]} is decreasing Here's ##y=(1/2)^x## which is also ##y=2^(x)##: graph{y=2^x [32.47, 32.48, 16.23, 16.24]}
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Waiting for answer How does an outlier affect the value of the standard deviati...
Outliers increase the standard deviation. Mean is most affected by outliers, since all values in a sample are given the same weight when calculating mean. A value that is far removed...
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Waiting for answer What prompted the Boston Massacre and the Boston Tea Party?
The various taxes imposed upon the colonies by Britain. Due to various acts (such as the Townshend Act ), tensions were high in the Colonies to begin with. The Boston Tea Party w...
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Waiting for answer How do you solve ## cos^2x = 3/4##?
Solve ##cos^2 x = 3/4## Ans: ##+ pi/6## and ##+ (5pi)/6## ##cos^2 x = 3/4##  ##cos x = + sqrt3/2## ##a. cos x = sqrt3/2 ## arc ## x = + pi/6## ##b. cos x =  sqrt3/2## ...
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Waiting for answer Why is the rate determining step slow?
I think you meant, "why is a slow step ratedetermining?", and I think it's more productive to answer that instead. Ratedetermining steps are slow because of how the mechanism works, which is just another way of saying "it is what it is", and isn't much of an answer. WHAT DOES IT MEAN IF A MECHAN...
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Waiting for answer What is the covalent compound formula for Nitric Acid?
It would be ##NO_2OH## Imagine the ##N## with 5 valencies, in the centre. Four of those are taken by two doublebonded ##O##, and the fifth is taken by an ##OH## In a watery environ...
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Waiting for answer Who was an example of a muckraker?
Upton Sinclair Is one of the most famous muckraker. Upton Sinclair is know for his novel, the jungle. The Jungle is a story about Americans meat packing industry. Sinclair is know a...
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Waiting for answer What is the empirical formula of caffeine?
##"C"_4"H"_5"N"_2"O"## To find the empirical formula for caffeine we begin with the Molecular (true) Formula ##C_8H_10N_4O_2## We can then reduce the Molecular Formula to the Em...
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Waiting for answer How do you create an exponential function y=ab^x given (21,...
##y=1*1.00014871^x## ##23.392=a*b^21200## There are two variables, so I'll assign 1 to a ##23.392=1*b^21200 ## ##23.392^(1/21200)=(b^21200)^(1/21200) ## ##1.00014871=b## So the equ...
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Waiting for answer What is the constant of variation in the circumference formu...
How does the formula for circumference relate to the formula for constant of variation: ##y=kx##? The constant of variation (k) for the circumference formula is: ##k=2pi## hope tha...
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Waiting for answer What is the difference between a collective noun and a compo...
Collective noun  a noun that refers to a collection of things. Compound noun  a noun made of two or more words. Collective : the word "group" is a collective noun, and can refer to...
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Waiting for answer Why do geologists know so little about Precambrian history?
Geologist do not know about the Precambrian Era because a lot of the evidence was destroyed a long time ago. The reason we don't know about the Precambrian era is because the earth w...
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Waiting for answer Marsha, Josh, and Tyler are comparing how fast they can type...
Marsha, Tyler, Josh. In order to compare them, we need to change all the of typing into the same unit. Words per minute means divide the number of words by the number of minutes....
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Waiting for answer How many electrons does hydrogen have?
It has 1 Hydrogen is the first element on the periodic tale, with an of 1. The one means that it has 1 proton, and the number of protons and electrons is the same, so it has 1 elect...
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Waiting for answer Struggling with this question on finding the surface area of...
I got ##75pi## The area of a sphere is ##4pir^2## so half of it is ##4/2pir^2=2pir^2## and we need to evaluate the radius ##r##; The volume of the entire sphere is ##V=4/3pir^3##....
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Waiting for answer How can I convert Newman projection for the staggered and ec...
Here are the six Newman projections for the staggered and eclipsed conformations of 2methylpentane. I doesn't matter which one we choose, so let's start with Structure A. Note that there is a carbon atom at the centre of the "Y" in the middle of the circle, and there is also a "hidden" carbon be...
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Waiting for answer When CH3CHCH2 is passing through by HBr in the presence of o...
Bromo propane in the presence of peroxide anti markovnikovs rule is followed that is the negative part of reagent is added to more number of hydrogens containing double bond carbon...
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Waiting for answer What is the rock's age? A rock contains onefourth of its or...
The rock's age is approximately ##"2.6 billion"## years. There are essentially two ways of solving problems. One way is by applying the halflife formula, which is ##A(t) = A_0(t) * (1/2)^(t/t_(1/2))## , where ##A(t)##  the quantity that remains and has not yet decayed after a time t; ##A_0(t...
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Waiting for answer How do you find the decimal notation of a percent?
Divide the percentage by ##100## When you divide the percentage by ##100##, you get the decimal notation. e.g. ##100/100####=####1## or ##1.0## ##75/100####=####.75## ##50/100...
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