Mathematics

Whats a prime number

its a number, you can only divide by 1 or the number itself for example 7 you can divide 7 by 1 or 7, all other divisions will have a not-natural-number as result-A prime number is a number that is d

Solve algebra question!!

Im not sure how to solve 2y(1+y)=4-Divide both sides by 2 to get: y(1 + y) = 2 Distribute y into 1 + y: y² + y = 2 Then, convert y² + y = 2 into standard form: y² + y - 2 = 0 Factor: (y - 1)(y

Evaluate the following indefinite integral: ∫ ((x^2) / (sqrt(1 - x))) dx

Evaluate the following indefinite integral: ∫ ((x^2) / (sqrt(1 - x))) dx Any and all help is much appreciated! Thanks so much in advance!-∫ x^2 dx/√(1 - x) Let u = √(1 - x) then u^2 = 1 - x and x

How can we show f is periodic

Show that, if f:R → R is symmetric wit respect to 2 distinct vertical axes, then f is periodic. Thank you.-Let the axes be x = a x = b. Then we have the following for every real x: f(x) = f(2a-x) f

Multiple choice, population mean? any help helps!

A researcher selects a random sample. A 90% confidence interval for a population mean μ A. is an interval with margin of error ± 90%. B. has the property that if we repeatedly selected our random samp

How do I solve (sec^2(x))+(csc^2(x))

I am really stuck on getting a common denominator. I get to 1/cos^2x+1/sin^2x , but than I cant figure out how to multiply the terms together to get a common denominator. I keep getting (cos^2x)(sin^2

What are some indeterminate forms including the infinite

one divided by infinite any operatoion perfoming in=ncludedinfinitr=ev is clalled indeterminate form

What is the derivative of secx

secxtanx-(sec x) (tan x)-I thought you said the derivative of sex. Lol

(Cube root of x - 2)^3-3

I dont know how to write it, but.. help :( Does the ^3 cancel out the cube root?So it would be x-5?-Depends. Is all of (x-2) under cube root or only x? In the first case yes, in the second case no.

Algebra 1 Math Problems?!?!?!?!

Factor out the greatest common monomial factor, 9z^2-18z^3 4p-8p^2-Factoring Strategy 1. Look for greatest common factor (GCF) is the largest term that will evenly divide into all terms of the orig

How do you derive the expansion for k/3^k

(1/3) + (2/3^2) + (3/3^3) + (4/3^4) +... + (k/3^k)+ ...-Use the geometric series 1 + x + x^2 + x^3 + ... + x^k + ... = 1/(1 - x). Differentiate both sides: 1 + 2x + 3x^2 + ... + kx^(k-1) + ... = 1/(1

How do you solve this

(n / n-3) + n = 7n-18 / n-3 I know the answer is either 3 or 6-Should be shown as :- n / ( n - 3 ) + n = ( 7n - 18 ) / ( n - 3 ) n + n ² - 3n = 7n - 18 n ²- 9n + 18 = 0 ( n - 6 ) ( n - 3 ) = 0 n

Euclidean Algorithm please

Im not sure what the Euclidean algorithm is, example find gcd(1529,14039) using Euclidean algorithm.-Its a strange sequence of operations you use to find the gcd. Here, let me explain with letter. Sa

Need help on calculus problems

I am taking a take home calculus test and I need help getting started and I need to see if my answer is right.If you can help me add me on yahoo messenger or email me at goodlife4545@yahoo.com-I guess

How do i factor this

Factor the trinomial. 20x^2 - 43x + 14 Factor the problem completely. First, factor out the greatest common factor, and then factor the remaining trinomial. 3y^4 - 3y^3 - 168y^2-(5x - 2) (4x - 7)