## simultaneous equations, Algebra

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#### Solve word problem, In his boat, Leonard can travel 24 miles upstream in t...

In his boat, Leonard can travel 24 miles upstream in the same time it takes to travel 36 miles downstream. If the rate of the current is 2 mph, find the rate of the boat in still

#### Equations reducible to quadratic form, In this section we are going to look...

In this section we are going to look at equations which are called quadratic in form or reducible to quadratic in form . What it means is that we will be looking at equations th

(-11,-3),(0,-7)

6x^3+3x^2-18x

#### Rectangular or cartesian coordinate system, Rectangular or Cartesian coordi...

Rectangular or Cartesian coordinate system We will begin with the Rectangular or Cartesian coordinate system.  It is just the standard axis system that we employ when sketching

#### Completing the square process, As a last topic in this section we have to b...

As a last topic in this section we have to briefly talk about how to take a parabola in the general form & convert it into the following form

#### Permutations, How many ways can five people line up if two of them cannot s...

How many ways can five people line up if two of them cannot sit together?

32+3e=

#### Price for demand, The national demand and price for a certain type of energ...

The national demand and price for a certain type of energy-efficient exhaust fan are related by p=490-4/5q, where p is the price(in dollars) and q is the demand (in thousands). The

#### Equations, 2x-4=-9

2x-4=-9  