Questions

The current population of a threatened animal species is 1 4 million but it is declining with a half life of 25 years How many animals will be left in 35 years years The population after 35 years will be animals Round to the nearest whole number as needed

From the definition 6 lim h

if x 1 f x 2 if 1 x 4 x if x 4 23

What is the sign of the slope of the line shown 5 4 3 2 1 4 a 1 7 1 3 4 5 1 2 The slope of the line is O negative O zero O positive O undefined G 4 5 a

Evaluate the limit lim s 0 1 2 5 s S 1 25

The current population of a threatened animal species is 1 5 million but it is declining with a half life of 20 years How many animals will be left in 40 years in 75 years animals The population after 40 years will be Round to the nearest whole number as needed

Two cyclists leave towns 64 miles apart at the same time and travel toward each other One cyclist travels 10 what is the rate of each cyclist Note that the ALEKS graphing calculator can be used to make computations easier Rate of the slower cyclist 7 h mi DO X G slower than the other If they meet in 2 hours

In tax year 1 an electronics packaging firm had a gross income of 32 000 000 8 000 000 in salaries 7 000 000 in wages 1 100 000 in depreciation expenses a loan principal payment of 250 000 and a loan interest payment 200 000 Determine the net income of the company in tax year 1 The corporate tax rate is 21 The net income of the company in tax year 1 is Round to the nearest dollar

A corporation has the following financial information for a typical operating year Click on the following icon in order to copy its contents into a spreadsheet Gross revenue Cost of goods sold Operating costs Federal taxes State taxes 7 800 000 3 650 000 780 000 667 870 189 660 a On the basis of this financial information determine both federal and state marginal tax rates The marginal state tax rate is Round to two decimal places

The current population of a threatened animal species is 1 5 million but it is declining with a half life of 20 years How many animals will be left in 40 years years animals The population after 40 years will be Round to the nearest whole number as needed

Determine the relative phase relationship of the two waves u1 t 10 cos 377t 43 V u2 t 10 cos 377t 117 V Notes on entering solution Enter your solution with respect to u2 t leads u1 t by Enter your solution in degree Do not include units in your answer ex 5 is entered as 5

Calculate current across the capacitor shown in Fig P8 6 if the voltage input is v1 t 30 cos 262t 25 V v t Figure P8 6 i t ex 5 is entered as 5 C 1 F For a current i t C cos wt P enter the value of the phase angle P be sure that your answer is between 180deg to 180deg Notes on entering solution Enter your solution in degrees Have your current in cosine format Do not include units in your answer

Given i t 5 cos 430t 120 A determine the period of the current Notes on entering solution Enter your solution in seconds s Enter your solution to the nearest ten thousandth of a second Do not include units in your answer ex 5s is entered as 5 0000

Evaluate the definite integral In 12 S 0 In 12 tanh x dx one

Evaluate the following integral S 2dx 2dx 144 X 12

Evaluate the definite integral 1 1 0 cosh 3x sinh 3x dx cosh 33x sinh 3x dx Type an exact answer

The Burgess Shale preserves fossil organisms from which type of environment O floodplain O seafloor O beach

The Cambrian explosion occurred during the early mid Cambrian late Archean late Paleozoic

Which choice best describes the Cambrian explosion oxygenation of the earth s atmosphere diversification of Ediacaran organisms a burst of Metazoan diversity Odiversification of microbial diversity in the Archean

The half life of a radioactive substance is 50 years If you start with some amount of this substance what fraction will remain in 150 years What fraction will remain in 200 years The fraction that will remain in in 150 years is the following Simplify your answer

Based on what you have read how can you motivate yourself Utilize at least 5 concepts from lecture or text to explain your answer Be specific in applying concepts to yourself

A Write an example of collecting data using 1 Simple Random Sampling 2 Systematic Random Sampling 3 Stratified RandomSampling 4 Cluster Sampling B Tell whether the following questions are biased or fair Rewrite biased questions as fair questions 1 Do you think bike helmets should be mandatory for all bike riders 2 Do you prefer the natural beauty of hardwood floors in your home 3 Do you exercise regularly 4 Do you eat at least the recommended number of servings of fruits and vegetables to ensure a healthy and long life 5 Do you prefer the look and feel of thick lush carpeting in your living room 6 Do you take a daily multiple vitamin to supplement your diet 7 Do you read the newspaper to be informed about world events 8 Do you feel that the TV news is a sensational portrayal of life s problems

As a measure of your participation you will write 200 word minimum responses to the readings as well as responding to at least one other post In these posts I want to see concrete examples where you critically reflect on the readings This can include citing specific photographs and photographers theoretical connections between different readings ideas themes and or the author s own argument Please refer to my separate guide on discussion posts for full details Posts are due by Sunday 6pm almost every week There will not be an opportunity to post after the deadline so make sure you enter the due dates into your calendar now so that you don t miss them Keep in mind that our reading assignments will cover similar but not identical material to the weekly lectures I have scheduled the readings so they foreshadow the content we cover in lecture that day so it is essential you do the readings prior to the lecture this form of assessment is designed to get you ready to engage with lecture content in a meaningful way Weekly readings are listed on the course schedule for the weeks they are due Search entries or author Unread UNKNOWN PHOTOGRAPHER Portrait of a Laundress 1848 50 5 5 16 x 3 5 16 inches Daguerreotype with applied color Photography democratized portraiture by making it economically feasible for or dinary working people to have their likeness memorialized Here a laundress ap nearing out of an ethereal setting and staring directly into the camera grips a bar

Discussion Board Posts 25 total As a measure of your participation you will write 200 word minimum responses to the readings as well as responding to at least one other post In these posts I want to see concrete examples where you critically reflect on the readings This can include citing specific photographs and photographers theoretical connections between different readings ideas themes and or the author s own argument Please refer to my separate guide on discussion posts for full details Posts are due by Sunday 6pm almost every week There will not be an opportunity to post after the deadline so make sure you enter the due dates into your calendar now so that you don t miss them Keep in mind that our reading assignments will cover similar but not identical material to the weekly lectures I have scheduled the readings so they foreshadow the content we cover in lecture that day so it is essential you do the readings prior to the lecture this form of assessment is designed to get you ready to engage with lecture content in a meaningful way Weekly readings are listed on the course schedule for the weeks they are due Search ontries or author Unread WHAT IS A DAGUERREOTYPE In the winter of 1838 1839 American painter and inventor Samuel F B Morse 1791 1872 was in Paris to demonstrate his electric telegraph and he arranged a meeting with Daguerre After seeing Daguerre s process Morse wrote to his brother that daguerreotypes resemble aquatint engraving for they are in simple chiarooscuro sic and not in colors but the exquisite minuteness of the delineation cannot be con ceived No painting or engraving ever approached it The impressions of in terior views are Rembrandt perfected The daguerreotype is a physical container of information having the properties of both a two dimensional image and a three dimensional object The daguerreo type does not look or feel like a contemporary paper photograph nor is it made like one Its image rests on the highly polished silvered surface of a copper plate whose mirror like brilliance provides unparalleled visual depth but also makes viewing the picture problematic A daguerreotype must be viewed from a specific angle or its image will appear as a negative that is tonally reversed Above all the daguerreotype process produced a singular unique image unable to be print ed multiple times The daguerreotype s greatest technical advantage is its ability to render incredible detail Its shimmering surface is a physically luxurious one that can beautify an ordinary subject by anointing it with a sense of visual splen dor At its best the image can seem to rise from the surface giving a sense of a dimensionality The daguerreotype s subtle perfection and

Divide 0 925 3 7

The graph of the function has one relative extreme point Plot this point and check the concavity there Using only this information sketch the graph f x x 8x 7 The relative extreme point on the graph is Type an ordered pair

The graph of the following function has one relative maximum point and one relative minimum point Find these points using the first derivative test f x x3 9x 15x 1 The relative maximum is Type an ordered pair

The graph of the function has one relative maximum and one relative minimum point Plot these two points and check the concavity there Using only this information sketch the graph f x C 1 x3 3x2 8x 12 3 The relative minimum point on the graph is Simplify your answer Type an ordered pair Use integers or fractions for any numbers in the expression

a If g x is the first derivative of f x what is the nature of f x when x 2 below b If g x is the second derivative of f x what is the nature of f x when x 4 Ay 2 S 6 y g x 6 X 8 10 a If g x is the first derivative of f x what is the nature of f x when x 2 OA f x has a local minimum at x 2 OB f x has a local maximum at x 2 OC f x is decreasing at x 2 OD f x is increasing at x 2

The graph of the function has one relative maximum and one relative minimum point Plot these two points and check the concavity there Using only this information sketch the graph f x x 6x The relative minimum point on the graph is Type an ordered pair

Sketch the following curve indicating all relative extreme points and inflection points y 8 3x x3 The relative extreme points are Type an ordered pair Use a comma to separate answers as needed 30

Use the approximate doubling time formula for the case described below Discuss whether the formula is valid for the case described An economic indicator is increasing at the rate of 4 per year What is its doubling time By what factor will the indicator increase in 5 years Use the approximate doubling time formula What is its doubling time 17 5 years Type an integer or decimal rounded to the nearest tenth as needed Use the approximate doubling time formula By what factor will the indicator increase in 5 years 1 21 Type an integer or decimal rounded to the nearest hundredth as needed Is this formula valid in the case described Yes No

The Burgess Shale preserves fossil organisms from which type of environment Oseafloor O floodplain lakebed O beach

The Cambrian explosion resulted in many different metazoan body plans These groups all still have living members True O False

The Cambrian explosion is best known from the Burgess Shale a fossil locality in O Minnesota USA O Warrawoona Australia O Yucatan Mexico British Columbia

Describe two reasons why the fossils from the Burgess Shale are so well preserved Why isn t this type of preservation common

40 Find the area of the top view of the piece shown Dimensions are in inches Round the answer to 1 decimal place 298 5 2 095 shaded

S The scientific method II Complete each of the following statements to describe the parts of the scientific method Then place the sentences in the correct order in which the scientific method tends to flow 1 The scientific method begins with a or an Click to select of a natural event 2 Scientists use reasoning to combine observations into a tentative explanation or Click to select 3 Scientists develop a good experimental design that contains both a test group in which the experimental variable is altered and Click to select group in which the experimental variable is not altered a 4 Analysis of the data reveals how the manipulated variable also known as the Click to select variable affects the measured variable the Click to select variable 5 The results of an experiment are called data and must be properly analyzed in order for a Click to select to be reached

ces Which one of the four recorded motor unit action potentials MUAPs corresponds to the smallest number of muscle fibers contracting 1 2 Multiple Choice O O 3 4

Where is the black electrode placed in the electromyograph EMG lab Multiple Choice O O O lateral wrist over the bicep medial wrist anterior elbow

ces When sodium flows through open voltage gated channels the membrane Multiple Choice O hyperpolarizes repolarizes reaches resting potential

y x5 5x 4x a Find the zeros algebraically Enter your answers as a comma separated list If there are no real zeros enter DNE X b Use a graphing utility to graph the function y O 4 4 4 2 y A 2 4 X 4 y M 4 2

Use the approximate doubling time formula for the case described below Discuss whether the formula is valid for the case described An economic indicator is increasing at the rate of 3 per year What is its doubling time By what factor will the indicator increase in 5 years Use the approximate doubling time formula What is its doubling time years Type an integer or decimal rounded to the nearest tenth as needed

Solve the inequality X 6 X 5 VI

Complete the following paragraph 1 Skeletal muscles are composed of many individual cells or Click to select Click to select 2 The motor neuron and all the myofibers it innervates is referred to as a Click to select sends a nerve impulse to a skeletal muscle fiber the muscle fiber will Click to select 3 The number of motor units activated determines how much Click to select number of motor units activated the Click to select Click to select sensory neuron more motor neuron be stimulated to contract muscle fibers motor unit force greater the force lesser the force relax 4 Each muscle fiber is innervated by a Every time a motor neuron is generated by the muscle The greater the Therefore lifting a heavy object would require motor units than lifting a light object would require

ces When measuring force by looking at the blue plot in the EMG lab simulator each square corresponds to Multiple Choice 2 kg 5 kg 10 kg 1 ka

In 2013 the estimated world population was 7 1 billion Use a doubling time of 54 years to predict the population in 2021 2059 and 2108 What will the population be in 2021 The population will be 7 9 billion Round to one decimal place as needed What will the population be in 2059 The population will be 12 8 billion Round to one decimal place as needed What will the population be in 2108 The population will be billion Round to one decimal place as needed

events which theorist Karl Marx or Max Weber offered the most realistic interpretation of capitalism In other words whose ideas about capitalism were the most correct Karl Marx or Max Weber What do these theorists say about capitalism In your opinion what do these two theorists get right In your opinion what do these two theorists get wrong Correctly discuss Karl Marx s and Max Weber s ideas about capitalism and bureaucracy Your paper should discuss and correctly summarize the ideas of Marx and Weber The argument of the paper should discuss whose perspective you see as offering the most correct ideas about capitalism Do not include quotes in the paper Instead

To make a muscle contract more strongly the nervous system can activate more motor units This process is cal Multiple Choice summation twitch motor unit recruitment incomplete tetanus

While the presence of calcium ions inside the sarcoplasm is necessary for contraction it is not sufficient Once calcium has been released and enables actin myosin crossbridges to form is needed for the muscle contraction Multiple Choice ATP another action potential acetylcholine sodium