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Ready4 <p>If a company sold 20,000 units, and if the cost of the units was $100,000 plus 5 percent of the revenue obtained from sale of the units, did the company make a profit on the sale of the units?p>
  1. The company's total revenue was greater than $112,000.
  2. The revenue obtained from the sale of each unit was $6.
OG18 OG19 OG20 OG2022 In the xy-plane, the origin O is the midpoint of line segment PQ. If the coordinates of P are (r,s), what are the coordinates of Q ?
181215 In the xy coordinate system, what is the coordinate of the point that is symmetric with respect to the line y=x relative to point P(-1, -2)?
C13 <p class="ng-scope">     When Venezuelan-born political leader Simón Bolívar arrived in Europe to pursue his military education when he was a teenager, he arrived at a fortuitous time in world history. What made the time exceptional was Napoleon's 1804 coronation as emperor of France and the wars throughout Europe still ongoing in the wake of the French Revolution, which made the environment ripe for someone determined to achieve freedom, self-determination, and independence from European colonial overlords for the peoples of Latin America.p> <p class="ng-scope">     Hoping to emulate the revolutionary successes of other colonial societies, many of the countries administered by Spain watched the radical political changes occurring in Europe and North America with longing, even as they continued to be ruled from abroad by foreign elites. The people of Latin America saw their incipient nations exploited for the profit of Madrid, just as they had been for centuries. Summarizing modern historical scholarship, most academics with knowledge of the period argue that the period of revolution in early nineteenth-century Latin America was an inevitable consequence of the dissemination of Enlightenment ideals: a mature society conscious of the prospect of self-rule will almost invariably attempt to bring about that eventuality, by armed means or otherwise.p> <p class="ng-scope">     Some historians maintain that Bolívar is responsible for the revolutionary circumstances from which he manufactured, in the early years of the nineteenth century, the most momentous set of political changes in Latin American history. But such a narrative only obfuscates the historical trends that had already imbued most Latin American polities with a revolutionary spirit. This spirit did not originate with Bolívar; instead, he served as its focal point and primary agent in world affairs.p>
Ready4 <p>By far the most common cause of hair loss in men is androgenetic alopecia, also referred to as “male pattern” or “common” baldness. It is caused by the effects of the male hormone dihydrotestosterone (DHT) on genetically susceptible scalp hair follicles. This sensitivity to DHT is present mainly in hair follicles that reside in the front, top, and crown of the scalp (rather than the back and sides), producing a characteristic and easily identifiable pattern. p><p>It is frequently stated that “hair loss comes from the mother's side of the family.” The truth is that baldness can be inherited from either parent. However, recent research suggests that the reasons for hair loss and balding may be a bit more complex than originally thought. Factors on the X-chromosome have been shown to influence hair loss, making the inheritance from the maternal side of the family slightly more important than the paternal one. The identification of an androgen receptor gene (AR) on the X-chromosome helps to explain why the hair loss pattern of a man resembles his maternal grandfather more often than his father. However, this is clearly not the whole story since a direct inheritance of baldness from the father is observed as well. An autosomal (non-sex) linked gene would explain this type of transmission — but this gene has not yet been found. p><p>DHT is formed by the action of the enzyme 5-alpha reductase on testosterone, the hormone that causes sex characteristics in men. DHT causes male hair loss by shortening the growth, or the anagen, phase of the hair cycle, causing miniaturization of the follicles, and producing progressively shorter, finer hairs. Eventually these hairs totally disappear.p>
Ready4 <p class="ng-scope">     When Venezuelan-born political leader Simón Bolívar arrived in Europe to pursue his military education when he was a teenager, he arrived at a fortuitous time in world history. What made the time exceptional was Napoleon's 1804 coronation as emperor of France and the wars throughout Europe still ongoing in the wake of the French Revolution, which made the environment ripe for someone determined to achieve freedom, self-determination, and independence from European colonial overlords for the peoples of Latin America.p> <p class="ng-scope">     Hoping to emulate the revolutionary successes of other colonial societies, many of the countries administered by Spain watched the radical political changes occurring in Europe and North America with longing, even as they continued to be ruled from abroad by foreign elites. The people of Latin America saw their incipient nations exploited for the profit of Madrid, just as they had been for centuries. Summarizing modern historical scholarship, most academics with knowledge of the period argue that the period of revolution in early nineteenth-century Latin America was an inevitable consequence of the dissemination of Enlightenment ideals: a mature society conscious of the prospect of self-rule will almost invariably attempt to bring about that eventuality, by armed means or otherwise.p> <p class="ng-scope">     Some historians maintain that Bolívar is responsible for the revolutionary circumstances from which he manufactured, in the early years of the nineteenth century, the most momentous set of political changes in Latin American history. But such a narrative only obfuscates the historical trends that had already imbued most Latin American polities with a revolutionary spirit. This spirit did not originate with Bolívar; instead, he served as its focal point and primary agent in world affairs.p>
Ready4 <p>p> <p>In quadrilateral ABCD above, CD is parallel to and is longer than AB. What is the area of ABCD?p>
  1. EC=75 meters
  2. BC=3010 meters
<p> p>
Ready4 <p>Dinosaurs have fascinated and baffled paleontologists and evolutionary biologists for decades. How such gigantic animals, some of which weighed over ten tons and stood over 50 feet tall, could be so agile and energetic and how exactly did these creatures regulate their body temperature are some of the questions that remain under debate to this day. p><p>Current studies of dinosaur fossils suggest that they were warm-blooded. While their leathery skin, skull shape, and counter-balancing tails are reptilian, their overall anatomy, suggests that they evolved from cold-blooded ancestors into a warm-blooded species. Unlike cold-blooded reptiles, whose legs are generally sprawled outwards, dinosaurs had legs that extended straight below the pelvis. They also had four-chambered hearts, a characteristic feature of warm-blooded animals that is almost never seen in modern reptilians. p><p>The dinosaurs resembled both reptiles and mammals in their physiology. In fact, dinosaurs are often seen as the link between reptilian and mammalian species. Both mammals and dinosaurs have numerous tiny holes called “nutrient foramina” in their femoral bones. These foramina supply blood and nutrients to the living bone cells within. This is a feature of warm-blooded animals with a high metabolic rate and an active lifestyle. In dinosaurs, these foramina were found to be much larger and more numerous than those found in mammals, suggesting that dinosaurs were actually much more agile and active than mammals. p><p>Several paleontologists also argue that dinosaurs must have been warm-blooded because standing erect requires the body to generate enough of its own heat and not rely on the ground for warmth (as lizards, snakes and alligators do). Moreover, a predator as large as some dinosaurs would have to be unusually nimble and quick in its movements. Such activity would require a high metabolic rate, which in turn suggests that dinosaurs were, indeed, warm-blooded. p><p>Many have attempted to explain how dinosaurs became extinct. Some speculate that they were unable to adapt to the withdrawal of the second ice-age, some say they were wiped out by a meteorite, a few even argue that the extremely steep growth curve of dinosaurs might somehow have contributed to the end of this magnificent species. Each theory has its own shortcomings. The first one does not take into account the fact that dinosaurs had withstood the climatic changes brought about by the first ice age. The second theory seems unlikely because several contemporary species survived while the dinosaurs became extinct. The third one assumes that all types of dinosaurs grew at the same rate. Smaller dinosaurs, some of which grew only to a height of six inches, would have had a much slower rate of growth. Their extinction cannot be explained by this theory alone.p>
Ready4 <p>Over the past few years there has been a lot of discussion about the animation bubble in Canada, and the booms and busts the industry seems to go through every 7 years or so. This last boom, it could be argued, lasted well over a decade. However , such growth is not without substantial risks. The industry has long argued that one reason why the local animation industry has lagged behind its counterparts across the globe is its inability to compete against low cost animation from Asia. The government, in a bid to address this disparity, has enacted a law requiring broadcasters in Canada to acquire 50 percent of their animation content from local animation studios. p><p>The response appears to have been substantial. According to figures, the total animation content procured from local studios rose from $10 million in 2001 to $180 million in 2011, with no letup anticipated in the next decade. The software tools available today, mostly Flash, allow smaller companies to produce animation at a rate that was not conceivable even 15 years ago. Because of this major shift, entire productions, TV series, and features are being produced almost entirely in house using a crew that is almost entirely Canadian — a smart thing to do because it allows the broadcasters to take advantage of the lucrative Canadian and provincial tax credits available for just this kind of production. As promising as this is for local studios, this increased patronage poses dangers for them, too. p><p>First, local studios risk expanding too fast and overextending themselves financially, since most are small concerns unlike their Asian counterparts. They often need to make substantial capital investment in building technology capability in order to handle the larger volume of work. If, thereafter, the content fails to work with the audience and further episodes get cancelled, such firms can face potentially crippling losses. p><p>A second risk is that these studios will end up creating work that is too specific to local audiences. Given the increased dependency on local broadcasters, the studios run the risk of creating content tailor made for local audiences rather than remaining culture neutral. This substantially reduces the ability of their products to sell beyond local boundaries. p><p>Third, a local studio that secures the contract from one large broadcaster often runs the danger of becoming — and remaining — dependent on that single broadcaster. Even in the best of circumstances, fierce competition from Asian studios makes it difficult for small studios to broaden their customer base internationally: When such firms have nearly guaranteed orders from a single local benefactor, complacency from their current success may arise.p>
Ready4 <p class="ng-scope">     A reliable, noninvasive test for mild traumatic brain injury (TBI) has long proved elusive. In a recent experiment, however, we have shown that processing and identification of speech sound frequencies is measurably impaired in concussion victims and that neural responses to speech-frequency sounds can be sufficiently tracked using electrodes to warrant a clinical assessment of an injury.p> <p class="ng-scope">     Investigations into the neurological effects of closed head trauma have previously determined that the auditory system is negatively impacted by physiological changes such as demyelination, or damage to nerve coverings, and reduced levels of neurotransmitters, chemicals that transmit neural signals. However, the incidence of these impacts among patients with less severe trauma may be difficult to detect, making most auditory neurological measures unreliable as indicators of mild TBI. Our decision to test the neural response to speech-frequency sounds was based on the complexity of the brain activity involved: the demyelination, axonal injury, and tauopathy potentially resulting from brain injury would affect speech-frequency auditory responses even if they presented as very mild. Moreover, lags in speech-frequency sound processing as low as a fraction of a millisecond have been shown to be indicative of abnormality.p> <p class="ng-scope">     We measured the neural responses of a group of people diagnosed with mild TBI to speech-frequency sounds amid background noise and those of a control group of healthy people. As we expected, the injured brains exhibited both smaller and slower neural responses to speech-frequency sounds than the brains of the control group.p> <p class="ng-scope">     Importantly, moreover, a second test performed after an interval of a few weeks revealed that the neural processing of speech-frequency sounds improved for all of the injured subjects. Since all of these subjects reported diminished symptom loads at the time of the retest, it is reasonable to believe that the test could serve as a reliable indicator not only for initial diagnoses of brain injury but for tracking recovery and offering prognoses. It is likely that complex auditory processing could improve proportionately to the degree to which brain physiology has returned to normal.p> <p class="ng-scope">     The more severe a brain injury is, the more likely it is that a victim will exhibit diminished neural processing due to demyelination and diminished levels of the neurotransmitter glutamate, both of which are primary contributors to the functioning of the auditory midbrain. Thus the more severe a brain injury, the less aptly the brain can execute complex sound-processing functions.p>
Ready4 <p>What were the total wages of a person who worked last week for 40 hours, some of which were compensated at a normal hourly rate and the remainder of which were compensated at an overtime rate?p>
  1. The number of hours worked at the normal rate was 3 4 of the total number of hours the employee worked.
  2. The overtime rate was $25 per hour.
Ready4 <p>In a game, blue chips are worth a certain amount of points each, and red chips are worth a certain amount of points each. What is the total point value of 5 red chips and 3 blue chips in the game?p>
  1. The point value of 15 red chips and 9 blue chips is 732.
  2. The point value of a red chip is 12 less than the point value of a blue chip.
Ready4 <p>At a company's awards ceremony, 3 5 of the attendees were company employees and the remaining attendees were staff hired for the event. If 1 5 of the employees were managers, what was the number of employees who were not managers?p>
  1. There were 125 attendees.
  2. There were 50 staff hired for the event.
Ready4 <p>Last year, if a company spent a total of $1,200,000 on marketing, salaries, and administrative costs, how much did it spend on salaries?p>
  1. Last year, the total amount that the company spent on salaries and administrative costs was 50 percent of the amount that it spent on marketing.
  2. Last year, the amount that the company spent on salaries was 25 percent of the total amount it spent on marketing and administrative costs.
Ready4 <p>p><p>In the figure above, what is the value of ?p> <p>(1) p> <p>(2) and are both isosceles and p>
Manhattan According to the passage, when an electron falls into a hole at the junction between n-type and p-type semiconductor layers in an LED,
PREP07 Test 1 For each customer, a bakery charges p dollars for the first loaf of bread bought by the customer and charges q dollars for each additional loaf bought by the customer. What is the value of p ?(1) A customer who buys 2 loaves is charged 10 percent less per loaf than a customer who buys a single loaf. (2) A customer who buys 6 loaves of bread is charged 10 dollars.
Ready4 <p class="ng-scope">If v and w are integers, is v>w?p>
  1. v+w>0
  2. w v <0
Ready4 <p>p> <p>If the tick marks shown on the line above are equally spaced, what is the value of m?p>
  1. k=1311
  2. (k+m)3+133=1
Ready4 <p>If c = 0.00465 and \ddot c is the decimal obtained by rounding c to the nearest thousandth, what is the value of c - \ddot c?p>