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Basic Algebra

An open box with a square base...

An open box with a square base is required to have a volume of 27 cubic feet. Express the amount A of material that is needed to make such a box as a function of the length x of a side of the square base. I have A(27/x^2) +x^3....i have no clue to if this is correct.

Differentiation : Find Local Extrema of a Function on an Interval

Locate the absolute extrema of the function on the closed interval. f(x) = -x^2 + 3x [0,3] [Answer is minimum at (0,0) and (3,0) and max at (3/2), 9/4) Locate the absolute extrema of the function on the closed interval. g(t) = t^2/t^+ 3 [-1,1] Answer Min (0,0) Max (-1, 1/4) (1, 1/4) Locate the absolute extre

Logarithmic Equations, Inverse Proportion 'Together and Alone'

1. If log3 12 = log4 x, then x = 2. If 6e^(n/3) = 5, then what is the value of n? 3. What is the definition of inversely proportion? I understand that in directly proportional problems you can set a ratio: x:12 = 34:32, but for inversely proportional what do I have to do? 4. Jules can make m muffins in s minutes. Alice can m

Pressure Distribution, Bernoulli's Theorem and Flow Patterns

Consider the flow past a circular cylinder... Plot the pressure coefficient Cp along the surface of the cylinder versus θ for O≤θ≤ pi i What is the value of Cp at θ=5O° ii At what point around the cylinder's surface will the static pressure equal the freestream pressure. iii If one combines a so

Number Theory. 400 level. Introductory Course in Undergraduate.

Topics usually include the Euclidean algorithm, primes and unique factorization, congruences, Chinese Remainder Theorem, Hensel's Lemma, Diophantine equations, arithmetic in polynomial rings, primitive roots, quadratic reciprocity and quadratic fields. (See attached file for full problem description)

Number Theory. 400 level. Introductory Course in Undergraduate.

Topics usually include the Euclidean algorithm, primes and unique factorization, congruences, Chinese Remainder Theorem, Hensel's Lemma, Diophantine equations, arithmetic in polynomial rings, primitive roots, quadratic reciprocity and quadratic fields. (See attached file for full problem description)

Setting up an equation and an inequality

Suppose wheat and sugar are two basic ingredients necessary to bake two items: a loaf of bread and a muffin. A baker has 25 pounds of wheat and 5 pounds of sugar. To bake each loaf of bread, the baker needs to use 1.3 pounds of wheat and 0.5 pound of sugar. To bake each muffin, the baker need needs 0.4 pound of wheat and 0.16

Graphing and word problems

Problem 19 Find the correct graph. Problem 20 Problem 29 Problem 30 Problem 42 Problem 47 Different interest rates. Mrs. Brighton invested $30,000 and received a total of 2,300 in interested. If she invested part of the money at 10% and the remainder at 5%, then how much did she invest at each rate?

Lines Given Point and Slope and Writing in Standard Form

(See attached file for full problem description with symbols and equations) --- Find the slope of the line that goes thru each pair of points Draw line through with slope 1 and line through with slope 1 Draw L through and . What is the slope of any line perpendicular to . Draw through the origin so t

Require assistance with homework

(a) How many check bits are needed if the Hamming error correction code is used to detect single bit error in a 5602-bit data word? Show procedures to support your answer. (b) In a system bus, data lines, address lines, and control lines are separated. Why? (c) How many base-3 digits does it take to obtain as many combi

Writing Equations from Word Problems and Inequalities

Page 211 & 212 Write a formula that describes the function for each of the following. # 8 A developer price condominiums in Florida at $ 20,000 plus $ 40 per square foot of Living area. Express the cost C as a function of the number of square feet of living area S. # 10 With a GM Master card 5 % of the amount char

Questions on Polynomials, slope, finding the equation of the line

1. Find slope given the following points: (-1,-3) and (3,5) 2. Which quadrant are the following points located in: a. (-3,4) b. (2,-5) 3. Given the point (0,-3) and slope 2, find the equation of the line. Given the points (2,-5) and (-1, 4), find the following: 4. Slope and Y-intercept 5. Equation

Solving Systems of Equations, Simplifying Expression

Perform the indicated operation: 1) 2) 3) 4) 5) Simplify: 6) -6x + 3x 7) (-7r)(-5r 8) 2a(a + 4) -5(3a - 2) 9) 7a - 5(a + 2) - 3 - a 10) Find the value given a = 4, b =3 and c =2: c Solve each equation 11) + 5 = 14 12) -4y = -4 + 6y 13) 14) 5y - 5(2y + 2) = 0 Solve for y: 18) 5x

Plot nine inequalities.

28. y < 1 38. y>x, y<-x 39. x+y<5 x-y>-1 34. 3x+2y<2 -x-2y>4 25. y>2x-4 y<2x+1 16.y>2x-1 y<-x-4 17. x+y>5 x-y<3 27. y>x x>3 37. y>3x+2 y<3x+3 32. y<2 2x+3y<6

Quadratic Equation Application Word Problem : Maximizing Rectangular Area

Anne decides to start a vegetable garden and buys 100m of wire netting to fence off a rectangular area from the rabbits.Assume that Anne uses an existing fence as one side of the rectangle, and the 100m netting for the other three sides. - If x is the width of the rectangular garden, write an expression for the length of the

Quadratic Equation : Maximizing Profit

A movie theatre sells tickets for $8.50 each. The manager is considering raising the prices but knows that for every 50 cent the price is raised, 20 fewer people go to the movies. The equation is R= -40c to the power (exponent) of 2 + 84c describes the relationship between the cost of the tickets, c dollars, and the amount of

25 Questions - Algebra 2, College level.

(See attached file for full problem description with equations) --- 1. The diameter of the Milky Way disc is approximately 9 &#61620; 1020 meters. How long does it take light, traveling at 1016 m/year to travel across the diameter of the Milky Way? Time = distance/speed = 9 &#61620; 1020 m/1016 m/year = 9*104 years

Need help with Algebra

Page 17 & 18 10. 7 ? -- = -- 2 8 18. 5 ? -- = --- 7 98 30. 34 102 31. 70 -- 102 40. 5 12 -- . -

25 Questions - Algebra 2, College level.

(See attached file for full problem description with complete equations) --- 1. The diameter of the Milky Way disc is approximately 9 &#61620; 1020 meters. How long does it take light, traveling at 1016 m/year to travel across the diameter of the Milky Way? 2. Divide. 3. Multiply. Write the answer in

Group of algebra problems

Algebra problems: Page 24 55. - 0.03 - 5 56. 0.7 - (-0.3) 71. - 161 - 161 72. - 19 - 88 94. Net worth. Melanie has a $ 125,000 house with a $ 78,422 mortgage. She has $ 21,236 in a savings account and has $ 9,477 in credit card debt. She owes $ 6,131 to the credit union and figures that her

Various Quadratic Problems

See the attached file. 1. Find the axis of symmetry. y = x2 + 5x - 7 2. Solve. 5(x - 2)2 = 3 3. Solve by completing the square. x2 + 2x - 8 = 0 4. Find the x-intercepts. y = x2 + 5x + 2 5. Is the following trinomial a perfect square? Why? x2 + 18x + 81 6. The demand and supply equations for a cert