1 When two sides of a right angle triangle are known the best way to find the third side is to use SOH CAH TOA The Cosine Law the Pythagorean Theorem the Sine Law 2 The student council randomly surveys all of the Grade 9 classes to determine what music to play at the next dance The results would be biased because the entire school must be surveyed the sample is not random the sample is not representative of the entire population 3 Which change would INCREASE the amount of interest paid over the life of a mortgage Renewing the mortgage at a lower interest rate Making an extra payment once a year Choosing a shorter amortization period Switching from weekly payments to monthly payments 4 A relationship involving two continuous variables would be graphed with a bar graph histogram scatter plot circle graph I