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Basic Algebra

Sample Point Of Intersection Calculation: Quadratic With Line

Find the points of intersection algebraically of the graphs of the equations y=x^2-3x+4, and 2x-2y= -8 need to see the algebra got a bit lost as to how to get from Solve equations: Take y=x^2-3x+4 into 2x-2y=-8, we got: Here x-x^2+3x-4=-4 to here We got: x1=0,

Slope-intercept form

Write the slope-intercept form of the equation of the line that passes though point (6,-9) and is perpendicular to the line y+3x=9

Solving a Quadratic Equation

When I work the problem square root of 4x^2 + 15 - 2x = 0, by using the quadratic equation, my answer is a real number because I end up with the square root of 256 which is 16. Should I square both sides 1st or how do I solve the equation?

Solving Rational Expressions

I'm having a difficult time figuring out some of these! For some reason the -1 in this problem is throwing me off - I think! Here's what I came up with last time, I keep getting a different answer each time I work it. 3/(y+5) -1 = (4-y)/(2y+10) 3/(y+5)-1 = (4-y)/2(y+5) y is not equal to -5 LCD is 2(y+5) 2(y+5)*3/(y+5) =

10 Algebra Problems : Solve Equations and Quadratics

Please see the attached file for the fully formatted problems. #1 Solve a2 - 9a = -14 #2 Solve 2e(e +1) = 12 #3 Solve #4 Solve #5 Solve for z #6 Solve the equation and check for extraneous solutions. #7 Solve #8 Solve by completing the square. s2 + 8s -

Logarithm Proofs Components

Verify log(z1/z2) = log z1 - log z2 by a) using the fact that arg(z1/z2) = arg z1 - arg z2 b) showing that log(1/z) = -log z... Please see the attached file for the fully formatted problems.

Complex Logarithms

Please see the attached file for full problem description. --- 3. Show that (a) Log (1 + i)2 = 2 Log (1 + i) (b) Log (-1 + i)2 ≠ 2 Log (-1 + i).

Cauchy-Riemann Equations in Polar Form

Please see the attached file for the fully formatted problems. 8. Let a function f (z) = u + i v be differentiable at a nonzero point z0 = r0 e(iθ0). Use the expressions for ux and vx found in Exercise 7, together with the polar form (6) of Cauchy-Riemann equations, to rewrite the expression f ΄(z0) = ux + i vx

Exponential and Logarithmic Functions : Capacitance

If a capacitor with a capacitance of 0.000005 farads is wired in a circuit with a total resistance of 5000 ohms (the standard unit of electrical resistance), how long must the capacitor be wired to a source voltage to reach 50% of its maximum charge? (The Hint was: Begin by expressing q as 0.5Q)

Prove Bonferroni's Inequality

21. If P(E) = 0.9 and P(F) = 0.8, show that P(EF) ≥ 0.7. In general, prove Bonferroni's inequality, namely, P(EF) ≥ P(E) + P(F) - 1.

Inequalities, Graphs and Maximizing Profit

Please see the attached file for the fully formatted problems. Solve each inequality state the solution set using interval notation and graph the solution. Solve rational inequality state and graph the solution set. A chain store manager has been told by the main office that daily profit P is related to the number of

Logarithm Simplification

Write the following in terms of simpler forms: 3^(p*log_3(q)) (Here a^b denotes "a to the power b" and log_b denotes "logarithm in base b".)

Exponentials: simplifying and solving equations

(In this problem, the notation b^x stands for "b to the power x"; for example, b^2 stands for "b squared".) (A) Simplify the expression: 10^(3x-1)10^(4-x). (B) Solve the following equation for x: 5^(3x)=5^(4x-2). (C) Solve the following equation for x: (1-x)^5=(2x-1)^5.

Algebraic Properties 8b

Given the algebra <S;f,g,a>, where f and g are unary operations and a is a constant of S, suppose that f(f(x)) = g(x) and g(g(x)) = x for all x &#949; S. Show that f(f(f(f(x)))) = x for all x &#949; S.

Crytic math questions

Cryptic Math p Q R S T U V W X 1. Each letter stands for one of the numbers 1 - 9. 2. S + Q = V and S is smaller than Q. 3. P = R + U. 4. In one of the diagonals, all 3 numbers are perfect squares. 5. In one of the two diagonals, (P, T, X or R, T, V) the 3 numbers are in ascending orde