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Basic Algebra

Rearranging Equations

I have two equations from my physics textbook that I use to solve problems. Now some problems that I face require me to use algebra to manipulate the equation. This is where i have the problem. I've taking algebra before, but i'm having a hard time with this. On the attachment, please show me step by step on how to solve

Radicals (25 Problems)

Please see the attached file for the fully formatted problems. MAT 107 Week 6 Chapter 9 Cumulative Test 1. Determine whether is rational or irrational or both or none of the choices. A) Irrational B) Rational C) Both A and B D) None of the choices 2. Simplify. Assume all variables represent positi

Writing Equations from Formulas

An equation derived from an a.c. bridge circuit is given by Components R3,R4,C1 and C4 have known values. Determine expressions for Rx and Cx in terms of the known components. keywords: formulae

Absolute

Discuss your understanding of absolute value inequalities with examples, one each for <= and >= inequalities.

Solve: The Value for X

Please complete the following: Solve for X. Write your answer as a fraction in the simplest form. 4/5X + 4/5 = 6X + 1/3

Algebra 1

2. Subtract the matrices: [-1 7] [-6 -9] [11 6] [-3 4] 3. Find the product: (-6) (-1) (7) (-11) 4. What is the correct way to read "-x" aloud? 5. Solve for b: D=abc 6. Solve for r: 20q+2r=4 7. 5-4(x-5) =9 9. Solve: 4(x-5) =4x-20 Solve for p: 5.5pr=3x-7pr=11q2+10pr In 19

4 questions

(See attached file for full problem description) --- 1. Simplify the following expression and express the answer so that all exponents are positive 4x^-2 (y z)^-1 2^3 x^4 y 2. Show that the product of the roots of a quadratic equation ( A x^2 + Bx + C = 0 ) is C A 3. Solve the followi

Proof the equation in logarithm

I have this problem need to proof, but it does not give the logarithm base. Hope you can help on it. Please see attached file.

Numbers

Are there any cases when you simplify an expression, you end up with just numbers? Could you give examples please?

A town of population size 100,000 has 3 newspapers...

A town of population size 100,000 has 3 newspapers: A, B, and C. The proportion of people who read these people are as follows; Newspaper A: 25% Newspaper B: 27% Newspaper C: 33% Newspaper A and B: 12% Newspaper A and C: 8% Newspaper B and C: 10% Newspaper A and B and C: 5% (a) find the number of peopl

A system is composed of 5 components...

A system is composed of 5 components, each of which is either working or failed. Consider an experiment that consists of observing the status of each component, and let the outcome of the experiment be given by the vector: (x_1, x_2, x_3, x_4, x_5) where x_i (note, the subscript is the letter " i ", not 1)

Algebra questions

(See attached file for full problem description) --- 5y -7 + y=7y + 21 -5y Clear fractions or decimals first. x - + x = + x 0.96y - 0.79 = 0.21y + 0.46 5(t + 3) + 9 = 3(t-2) + 6 13 - (2c + 2) = 2(c + 2) + 3c 46. 112 Ax + By = c, for y The number of calories K need

Algebra questions

(See attached file for full problem description with proper symbols) 75. Jennifer's calculator gives a decimal approximation for and that approximation is promptly squared, the result is 2. Yet, when that same approximation is entered by hand and then squared, the result is not exactly 2. Why do you suppose this happens?

Answer the following questions/provide detailed answers and show work

Mathematics, Algebra Year 2 Please see attachment for additional questionaires. Please ask DR> SHARMA to handle this. Thanks! -------------------------------------------------------------------------------- Q # 4. The loudness of sound is based on intensity level measured in decibels using a logarithmic scale and is rel

Advantage of rational exponents over the radical sign.

Q # 1. While the radical symbol is widely used, converting to rational exponents has advantages. Explain an advantage of rational exponents over the radical sign. Include in your answer an example of an equation easier to solve as a rational exponent rather then a radical sign. See attached for Q # 2: Using the quadratic

Sharpness of a Bound

Why is the sharpness of the bound in (a) [(n-1)/2]'=1/2.? What does this mean: sharpness?

Graph Theory : Connected Graphs and Disconnected Graphs

Using the theorems from Graph and Digraphs 4ed by G. Chartrand and L. Lesniak: 1 - (a) Let G a graph of order n such that deg v greater than or equal to (n-1)/2 for every v element of V(G). Prove that G is connected. (b) Examine the sharpness of the bound in (a). 2 - Prove the every graph G has a path of length sigma