algebra
Does the system of equations have no solution, one solution, or infinitely many solutions? y = x + 4 y – 4 = x
algebra
Which graph represents the following system of equations? y = 3x + 3 y = –x – 3
Physics
When a metal pipe is cut into two pieces, the lowest resonance frequency in one piece is 244Hz and that for the other is 454Hz. What resonant frequency would have been produced by the original length of pipe? (Assume the speed of sound in air is 345 m/s) ^ I already got the an...
Chemistry
Suppose I put 1 billion bacteria in a 10 ml tube of saline, mix well, and label this tube A. Answer the following questions: 1. Take 1 ml from tube A and put it in an empty tube B. What is the concentration and number of bacteria in tube B?
Chemistry
Suppose I put 1 billion bacteria in a 10 ml tube of saline, mix well, and label this tube A. Answer the following questions: 1. Take 1 ml from tube A and put it in an empty tube B. What is the concentration and number of bacteria in tube B?
world history
Which of the following was not an innovation that came about due to militarization in the 1800s?
MATHS
how can you explain the steps and formula
MATHS
Differntiate sin(sinx) using the product rule
Math
Solve the equation: 125^r=5
Math
What is the inverse equation of f(x)=(x+2)/(x-1)?
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