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Didactalia: material educativo > 12-14 anos

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Find a Missing Leg

"The legs of a right triangle are the sides that are adjacent to its right angle. Sometimes we have problems that ask us to find a missing length of one of these legs. We can use the Pythagorean theor ...

"Factoring Trinomials with ""a"" Not Equal to One"

"One of the final steps in learning to factor trinomials is factoring trinomials with "a" not equal to one. In this case, "a" is the leading coefficient, or the coefficient of the squared term. When f ...

Factoring Trinomials by Grouping

"Sometimes we can use factoring trinomials by grouping terms with common factors. Being able to recognize terms that share a common factor and grouping them is a skill that will be used often througho ...

Factoring Trinomials

"When given a trinomial, or a quadratic, it can be useful for purposes of canceling and simplifying to factor it. Factoring trinomials is easiest when the leading coefficient (the coefficient on the s ...

Solid Properties

"When talking and learning about 3-dimensional solids, there are a few important terms and solid properties that we need to know. One of the first things we need to know is how to label the parts of a ...

Exterior Angles of a Polygon

"In a polygon, an exterior angle is formed by a side and an extension of an adjacent side. Exterior angles of a polygon have several unique properties. The sum of exterior angles in a polygon is alwa ...

Slope-Intercept Form

"The slope-intercept form is one way to write a linear equation (the equation of a line). The slope-intercept form is written as y = mx+b, where m is the slope and b is the y-intercept (the point wher ...

Sine Ratios

Hipervinculo Matemáticas

Sine Ratios

"Right triangles have ratios to represent the angles formed by the hypotenuse and its legs. Sine ratios, along with cosine and tangent ratios, are ratios of the lengths of two sides of the triangle. S ...

Simplifying Rational Functions

"Simplifying rational expressions combines everything learned about factoring common factors and polynomials. When simplifying rational functions, factor the numerator and denominator into terms multi ...

Simplifying Radical Expressions

"Radical expressions are square roots of monomials, binomials, or polynomials. One way of simplifying radical expressions is to break down the expression into perfect squares multiplying each other. A ...

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