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1. What do you have to do in 'changing the subject of a formula'?

  • Rearranging a formula to find the value of a subject.
  • Rearranging a set of numbers to find the answer.
  • Rearranging a subject to find the value of a formula.
  • Rearranging a word to find the value of a number.
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2. What does ' Trial and Improvement' involve?

  • This involves substituting the unknown with different values, until we find one that works.
  • This involves substituting the known with the same values, until we find one that works.
  • This involves substituing with the unknown with the same values, until we find two that works.
  • This involves substituting the unknown with different values, until we find five that works.

3. What is direct proportion?

  • When two quantities are in direct proportion, as on inreases, the other increases by the same percentage.
  • When two quantities are in direct proportion, as one decreases, the other increases by the same percentage.
  • When two quantities are in direct proportion, as one increases, the other increases by a perentage of 10 always.
  • When two quantities are in direct proportion, as one increases, the other decreases by a percentage of 10 always.

4. What is formulae?

  • A formula.
  • A method or procedure for acheiving something.
  • Something that has a formula.
  • A method to procedure.

5. What is the equation for pythagoras?

  • A2 + B2=C2
  • C2 + A2=B2
  • B2 + C2=A2
  • C2 + B2=A2

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