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Why is it difficult to create national unity in West African nations?Most Africans dont feel part of a nation that is ruled by Europeans.National unity violates Africans cultural beliefs.People feel more loyalty to their ethnic group than to their nation.People dont believe governments do anything to help them. During the Depression, what was the relationship between African Americans health and African Americans standard of living? Select the best answer from the choices provided. A. Black people's health decreased with the black family's standard of living. B. Black people's health increased with the black family's standard of living. C. No correlation existed between the two. D. Neither of the two shifted much during the Great Depression. Expert systems are used when: predictions for the future are required. patterns of consumer behavior need to be investigated. Big data needs to be analyzed. expertise is in short supply and needs to be captured. senior managers need reports on overall business performance. Stocks and bonds Use letters in alphabetical order to select options A are examples of stores of value, but not units of account nor medium of exchange. B are examples of stores of value and units of account, but do not function as medium of exchange. C are forms of money, according to economists. D have all the same functions as money, but are not considered money by economists. What is the correct amino acid sequence for the mRNA code AUGCCAGUAUG?(a) Tyr-Gly-Arg-His(b) Met-Pro-Ala-Val(c) Tyr-Gly-His(d) Met-Pro-Val Are the following two matrices inverses of oneanother? (Urgent please help)A=[ 4 2] B= [ -4 -2] [-11 -6] [ 11 7]a)Yes, because they are opposites.b)Yes, because their product is equal to theidentity matrixc)No, because they are not opposites.d)No because their product is not equal to the matrix The Campbell Company is considering adding a robotic paint sprayer to its production line. The sprayer's base price is $970,000, and it would cost another $19,500 to install it. The machine falls into the MACRS 3-year class (the applicable MACRS depreciation rates are 33.33%, 44.45%, 14.81%, and 7.41%), and it would be sold after 3 years for $617,000. The machine would require an increase in net working capital (inventory) of $15,000. The sprayer would not change revenues, but it is expected to save the firm $473,000 per year in before-tax operating costs, mainly labor. Campbell's marginal tax rate is 35%. Cash outflows, if any, should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to the nearest dollar. What is the Year-0 net cash flow WILL MARK U AS BRAINLIEST PLZ HELP Calculate the number in the middle of 8.6 and 21.3 I dont even know where to start Composite figures Find the volume In the expression shown below, q represents a fraction 6qWhich statement is true?A. if q is 2/3, the value of the expression will equal a number less than 6B. if q is 2/3, the value of the expression will equal a number greater than 6C. if q is 3/2, the value of the expression will equal a number less than 6 D. if q is 3/3, the value of the expression will equal a number greater than 6i really really need help with this question really fast please help!!!!!!! BEING TIMEDHow many craters does the Masaya volcano have?4532 An electron is moving at a speed of 2.20 104 m/s in a circular path of radius of 4.3 cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electron's path. The solenoid has 25 turns per centimeter.(a) Find the strength of the magnetic fieldinside the solenoid.(b) Find the current in the solenoid. markup = percent markup x costmarkdown = percent markdown x original priceAndie bought a tablet computer whose original price was $149. It was marked down 35%.What was the sale price of the computer? Does the government pay for murder suspects defense lawyer the amount of calcium hydroxide needed to react completely with a 100.0 g of nitric acid The amount of money A, accrued at the end of n years when a certain amount, P is invested at a compound annual rate, r, is given by A=P(1+r)n. If a person invests $150 in a account that pays 10% interest compounded annually, find the balance after 5 years . "Individuals who participate in coaching programs that provide information on interviews and tips on successful interviewing tend to have higher interview scores than those who do not"The effects of coaching on interviews evaluations PLEASE HELP MEEEE!!!!!A. Identify ONE type of boundary data shown on the map.B. Identify the region of the United States where most dairy farms are located.C. Identify ONE spatial pattern shown on the map.D. Describe the characteristic land use associated with the spatial pattern shown on the map.E. Describe TWO geographic features not shown on the map that would help explain the patterns of dairy farming shown on the map. A _____ is a written statement describing which assets to protect and why they are being protected, who is responsible for that protection, and which behaviors are acceptable and which are not:A. cypher text B. security policy C. digital signature D. plain text