Question: 5. What radical expression could be added to 3s,/E + 2J5 + 3J5 3m to obtain a sum of 4500 + 300 ? Write each

5. What radical expression could be added to 3s,/E + 2J5 + 3J5 3m to obtain a sum of 4500 + 300 ? Write each term as a mixed radical in simplest form to begin. (4 marks) 8. Consider the expressions \\lx a and la x , Where a is a positive integer. State and explain the restrictions on the variable x , in each expression. (2 marks) 10. The kinetic energy E, in joules J , of a moving object can be expressed as E, = -mv, where 2 m is the mass in kilograms kg , and v is the speed at which the body is moving in metres per second m /s . If the kinetic energy of a car with a mass of 1000 kg is 189000 J , determine the car's speed to the nearest hundredth of a m / s . (2 marks)

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