Algebra
What is the correct factorization of x^2(x-8)+5(8-x)?
Algebra
Explain how to factor the difference of two squares.
chemistry
How much water must be added to 440. mL of 0.204 M HCl to produce a 0.139 M solution? (Assume that the volumes are additive.)
Algebra
A rock is dropped from a riverbank that is 4 feet above the surface of the river. After how many seconds does the rock hit the surface of the water? At highest?
Physics
What is the wavelength of a 512 Hz sound wave in 20 degree C air?
Maths
Suppose Z=a+bi , where a and b are integers and i is the imaginary unit. We are given that |1+iZ| = |1-iZ| and |Z-(13+15i)|<17 . Find the largest possible value of a+b
Maths
The vertices of a cube are labeled with the numbers 0,1,2,3,4,5,6 and 7, such that no two vertices are labeled with the same number. The sum of any 2 numbers on an edge is prime. What is the maximum sum of the 4 numbers on a face?
Maths
How many ordered sets of positive integer triples (a,b,c) are there such that a+b*c=100
Algebra
When factoring an equation, how do I know if the result is prime? For example, I have a problem x^2 - 2x + 4 and I think it is prime because I can't solve it. Am I right?
Algebra
I have several of these problems and am having trouble getting the hang of it. Can you help me? Factor. If the result is the square of a binomial, write it as such. If the result is prime, so state. Here are the first couple of problems. 1) x^2 + 7x + 12 2) x^2 - x - 12 3) x^2...
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