Mathematics

What is 1/3 modular 2

How do you express a fraction like this using modular numbers?Help!-There are only two elements in Z2: 0 and 1.Of these, 0 has no inverse and 1 is its own inverse. Since 3 = 1 (mod 2), it follows tha

Algebra II: Factoring (ax^2 + bx + c)

I missed a day of school but have the homework and need a little help figuring it out.How do I factor this: 3y^2 - 20y + 12 Please break this problem down step by step.-3y^2 - 20y + 12 3y^2 - 18y -

Prove that f(x) = x^4 - 2*x^2 + 8*x + 1 is irreducible in Q

Prove that f(x) = x^4 - 2*x^2 + 8*x + 1 is irreducible in Q.-We show that f is irreducible over Z[x]. (By Gauss Lemma, f being irreducible over Z[x] ==> f is irreducible over Q[x]. By the Rational Ro

What is 1 3/4% of 75

16 what is 1 3/4% of 75?-1+3/4 % = 7/4 % = 7/400 7/400*75=1.3125-1 3/4 % = 1.75% hence, 1.75/100 Multiply by 75 . = 0.0175 x 75 = 1 5/16 = 1.3125-1 3/4% = (7/4) / 100 = 7/400 75(7/400) = 525/40

Please help on this calculus problem

rental car costs $40 per day, and 21 cents per mile traveled. a) Write an equation to express the cost of renting a car as a function of number of days, d, and number of miles, m.C ( d , m) = ........

Calculus related rate question: minimization/maximization

Im a little stuck on this: Suppose you are a food can manufacturer and have to supply circular cylindrical, sheet metal cans of volume V = 256π cm3. The cost of the circular ends (top and bottom) per

What are the units of the integral

Johns temperature is rising at a rate of r(t) = 0.3/1+t^2 degrees Fahrenheit per minute at t minutes since the thermometer is inserted.What are the units of the integral 0 to 5 r(t)dt? What does is re

Is there any good web site to learn about maths frameworks basics

google wasnt any luck because it gives .net frameworks and like that.couldnt find a good one.help-Not sure exactly what youre looking for, but I like the Khan Academy for learning pretty much anything

How do you solve this equation

hello, log^2x + log (x+1) = 7 / (log x - log 10) x=? ---- by log^2x i mean (log x)^2 ---- thanks-log^2 x + log(x + 1) = 7/(log x - log 10) [log^2 x + log (x + 1)](log x - log 10) = 7 log^3 x + lo

How can "casting out nines" be used to find S(S(S(n))), where n=7777^7777 and S(n)=the sum of the digits of n

Casting out nines is also the theorem that states if k=a (mod 9), then d1+d2+...+dn=a (mod 9), where k=d1d2d3...dn (the normal decimal representation of k).-Well... if you mean to take S(S(S...(n)) en

Is this the right answer (Solve by substitution)

x=2y y=2x+3 Here is what I got: x=2y y=2x+3 x = 2(2x+3) x = 4x + 6 -3x = 6 x = -2 x = 2y -2 = 2y y = -1 (-2, -1)-Your work is fine ! You could check the results in the other equation... y = 2x +

Calculus 3..Evaluating line integral

Evaluate the line integral, where C is the given curve. ∫C x sin(y)ds, C is the line segment from (0, 1) to (4, 4) I want to know what is x and y?? I got x =4t and y=3t+1. But after solving it I am

Evaluate the following integral by making the given substitution

ʃx²√(x³+1)dx, u = x³+1-Let u = x³ + 1. So, du = 3x² dx ==> x² dx = du/3. Hence, ʃ x² √(x³ + 1) dx = ʃ √u du/3 = ʃ (1/3) u^(1/2) du = (1/3) * (2/3)u^(3/2) + C = (2/9) (x³ + 1)^(3/2) + C. I hope this

If i was born in feb 9, 1996 how old am i

i did the math a bunch of times but kept getting 13, 14, or 15. idk which one. ! :( ugh, lol yea i know i should know my own age...sorry :( thanks-Over 9,000.-15-Old enough to know how old you are....

Logarithms problem, HELP!!! please

1) Given that log2(x+1) = log4(7x-5) a) Find possible values of X Much appreciated-First lets change the base of the right hand side: log4(7x-5) = log2(7x-5) / log2(4) = log2(7x-5) / 2log(2) = log2(