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Firstly substitute her first value into the equation so w=1 giving (3 x 1) - (1)^3 = 3 - 1= 2 so her first value for w is correct Next substitute the second value into the equation so w= -1 giving (3 x -1...

1. Draw a line pointing North from point A.

2. Use a ruler to draw a line that joins points A and B.

3. Use a protractor to measure the angle between the line that is ...

First make each fraction into an improper fraction so on the top of the first fraction it would be 3 + (2 x 4) = 3 + 8 = 11 therefore first fraction = 11/4 for the second fraction the top = 5 + (1 x 7) = ...

Use the rule of "bringing down the power" and then reducing the power by 1. Start with 4x^2. "Bring down" the 2 to make (4)(2)x^2, then reduce the power by 1 to make 8x. Now repeat thi...

The atomic radius of the elements decreases from sodium to argon. This is because the number of protons increases (sodium has 11, argon has 18) so the nuclear charge increases. Therefore, the attraction b...