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When working with fractions and mixed numbers what 2 operations require that you find common denominators before beginning to work?
those two operations are addition and subtraction.
When should you use the point slope form?
It is used when working out a straight line equation.
How do you know when an Equation has an infinity solutions without solving the equation?
You can't really know that in all cases. But with some practice in working with equations, you'll start to notice certain patterns. For example, you'll know that certain functions are periodic, and that an equation such as: sin(x) = 0 have infinitely many solutions, due to the periodicity of the function. This one is easy; we can make some small changes: sin(2x + 3) = 0.5 Here it isn't as easy to guess the exact solutions of the equation, but due to our knowledge of the periodicity of the sine function, we can assume that it has infinitely many solutions. Another example: a single equation with two or more variables normally has infinitely many solutions, for example: y = 3x + 2
What does left mean in a math problem?
In a math problem, "left" typically refers to the direction on a number line that is less than or before a given point. When solving equations or working with expressions, moving to the left usually involves subtracting or dividing to simplify or isolate variables. The concept of "left" in math is relative and depends on the context of the problem being solved.
In order of operations what do you do when you have exponents on both sides?
Working the exponents or roots is first in the order of operations.You do those even before multiplication or division.
