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Two students, X and Y, forgot to put their names on their exam papers. The professor knows that these two students do well on the exam with probabilities 0.8 and 0.4, respectively. After grading, the professor notices that X and Y forgot to put their names on their exams. One of their exams was done well and the other was done poorly. Given this information, and assuming that students worked independently of each other, what is the probability that the good exam belongs to student X
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A "scale" is constructed with a 4-ft-long cord and the 10-lb block D. The cord is fixed to a pin at A and passes over two small pulleys at B and C. Determine the weight of the suspended block E if the system is in equilibrium when s= 1.5 ft.
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A car is initially traveling west at 25 mph, and makes a turn north. As the car finishes the turn, its velocity is 20 mph north. It takes 3.5 seconds to complete the turn. What is the average acceleration of the car while it is turning, in mph/s?a. 0 -7.11+5.7.b. 7.1-5.73.c. 571-7.13.d. -5.7i+71.
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I NEED HELP FAST PLEASE WILL GIVE BRAINIEST Gavin deposited money into his savings account that is compounded annually at an interest rate of 9%. Gavinthought the equivalent quarterly interest rate would be 2.25%. Is Gavin correct? If he is, explain why. If he isnot correct, state what the equivalent quarterly interest rate is and show how you got your answer.
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Advanced question!I need smart people
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6. Which of the following does NOT identify a rhetoricaldevice used in the speech?Henry relies on exaggeration, especially of diction andtone, to make his points about the British and the stateof affairs the colonies face.OB Henry uses repetition throughout the speech toemphasize his points and show the Virginia House ofBurgesses how repeated actions for peace have gottenthem nowhere.O C Henry appeals to emotion (i.e. pathos) by reminding hisaudience of the injustices they have experienced and ofthe fearful future they face in shackles.OD Henry asks a number of rhetorical questions in order toget his audience thinking and to lead them to what heconsiders are the corrortanciare
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Vector A is 3.00 units in length and points along the positive x-axis. Vector B is 4.00 units in length and points along the negative y-axis. Use graphical methods to find the magnitude and direction of the following vectors:
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Use the table to determine the charge of phosphate in K3PO4.
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Lisa is investigating a chemical reaction involving carbon compounds. Which of these results could NOT occur, according to scientific lawsabout chemical reactions, matter, and energy?AThe reaction releases energy to the environment.B. The reaction absorbs energy from the environment.OC. The mass of carbon in the products is greater than the mass of carbon in the reactants.D. The mass of carbon in the products is equal to the mass of carbon in the reactants.E. The reaction occurs faster in the presence of a certain protein.Review progressQuestion 4of 10BackNext
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The receivers of the communication must accommodate their perceived multiple meanings and personal agendas and then negotiate a meaning or interpretation of the ad according to their individual life experiences and value systems.A. TrueB. False
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Select a transaction that effects the accounting equation as follows:________Effects A. The company pays cash toward an account payable. B. The company purchases equipment on credit. C. The owner invests cash in the business in exchange for its common stock. D. The company pays cash dividends to shareholders. E. The company purchases supplies for cash. F. The company provides services for cash. Transaction Decreases an asset and decreases a liability. Decreases an asset and decreases equity. Increases an asset and decreases an asset. Increases an asset and increases a liability. Increases an asset and increases equity.
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If you have 120. mL of a 0.100 M TES buffer at pH 7.55 and you add 3.00 mL of 1.00 M HCl, what will be the new pH? (The pKa of TES is 7.55.)
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"________ is a person's judgment about whether he or she can successfully learn new knowledge and skills."
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Alisha and Greg both work full time outside the home. As a woman, Alisha earns less than Greg and is responsible for a greater share of the housework and child care in order to "make up" the difference. __________ might argue that this arrangement is rational and mutually beneficial.
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An older adult client expresses concern about straining to pass stools that are small and hard. What term will the health care provider use to document this in this client's chart?
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What mass of a material with density rho is required to make a hollow spherical shell having inner radius r1 and outer radius r2? (Use any variable or symbol stated above as necessary.)
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Which of the following best defines scientific management? Group of answer choices It is the behavior that conforms to a society's accepted principles of right and wrong. It is maintaining planning flexibility by making small, simultaneous investments in many alternative plans. It is the set of moral principles or values that defines right and wrong for a person or a group. It is the thorough studying and testing of different work methods to identify the best, most efficient way to complete a job.
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Calculate the infant mortality rate (per 1,000 live births) from the following data: a. Number of infant deaths under 1 year in the United States during 1991 = 36,766 b. Number of live births during 1991 = 4,111,000
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452 multiplied by 36
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An enzyme-linked immunosorbent assay requires: A) a radioactive substrate. B) a radioactive standard for binding to the antibody. C) aromatic amino acids. D) a catalytic antibody. E) an antibody that binds the protein of interest.
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how to solve y-x=0 and 7x-9y=8 by substitution
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Beth won 86 pieces of gum playing hoops at her schools game night. Later, she gave three to each of her friends. She only has 2 remaining. How many friends does she have.
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Oral bacteria and dietary sugars are two of the three parts of the "Etiology Triad" of Early Childhood Caries. What is the third part of the triad?
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