Email: bbcnoun@gmail.com Whatsapp: 08131667008 ECO255 Question: Base eight number system can also be called ? Answer: [A] Octal number Question: How many solutions does the quadratic equation 12x2 + 9x + 17 = 0. Have ? Answer: [D] Zero Question: Solve for log72401 + log7343 – log749. Answer: [B] 5 Question: Solve for x in 2log(2x+1)2x + 4 – log(2x+1)4 = 2. Answer: [D] x = 1 or x = -1. Question: Convert 1001012 to a number in base 10 Answer: [A] 37 Question: ______ is the branch of mathematics that deals with the findings and properties of derivatives and integrals of functions by methods originally based on the summation of infinitesimal differences Answer: [C] Calculus Question: _______ is the process while derivatives are the outcome of the process Answer: [C] Differentiation Question: Differentiate y = (x + 5)^4. Answer: [A] 4(x + 5)^3 Question: If X = {3, 9, 14}, Y = {1, 2, 3}. Find X – Y Answer: [B] {9, 14} Question: Evaluate ʃx5 + x-4dx. Email: bbcnoun@gmail.com Whatsapp: 08131667008 Answer: [A] 1/6x6 – 1/3x-3 + c.