Search over 10,000 free study notes

Step 1: Calculate probability of getting tails by subtracting 1-0.8 = 0.2.Step 2: Calculate probability of getting heads then tails by multiplying 0.8 0.2 = 0.16.Step 3: Calculate probability of getting tail...

We use the FOIL method to do this, where FOIL stands for F irst, O utside, I nside, L ast. So in this example we multiply the first term of the first bracket with the first term of the second bracket ( 2x -3...

There are 2 main methods for solving simultaneous equations: 1) by substitution, and 2) by elimination . Have a look at how each method works and pick the one that's best for you! In order to make my explana...

To complete the square, we will need to put the equation into the form (x - a) 2 - b + 8 = 0 , where a is half of the coefficient of x (12 in this case) and b is the value we need to subtract in order for th...

This expression is in the form of ax^2 + bx + c, so you need to find two numbers which multiply to get ac and add to make b. Step 1: Here a is not = 1, so you need to take out the highest common factor. In t...