This is because when we do verification of an
identity, we must work separately on both sides, and to see in the end
if we can get an equality. Because if we square both sides, that already means
that we assume that the equality exist in the beginning, so no need to
verify the identity.
The first thing we are going to do is draw a diagram of the situation to help us to solve the situation. We an draw tow similar triangle between the length of the shadows and the height of the stick and the pole. Since <span>meter stick has a length of 1 meter, the height of our smaller triangle is 1 meter. Let </span> be height of of the pole. Since both triangles are similiar we can establish a proportion between their corresponding sides and solve for :
We can conclude that the pole is 4.04 meters tall.
A quadratic equation is an equation with exponents and x's, for example 3x^2+4x+3 is a quadratic. and quadratics usually have two points it can cross the x axis. though that doesn't mean it always crosses twice. some quadratic equations can cross more then twice and some don't at all.
linear equations are simple. they always show a straight line on a graph.
And exponential are kind like quadratics, exponential always have an exponent but don't have multiple x intercepts. exponentials are equations like the equation for compound interest rates (Initial Account Balance * (Interest Rates) ^ Time) it is exponentially growing using exponents.