Algebra Revision Test: Week 7
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Questions and Answers

What does the expression $4(7.34 \times 10^3 + 8.17 \times 10^2)$ simplify to?

  • $4.65 \times 10^3$
  • $4.65 \times 10^4$
  • $4.65 \times 10^5$
  • $4.65 \times 10^6$ (correct)

    • What is the expansion of $3(7 + 5)$?

  • 3(7) + 15 (correct)
  • 3(7) - 15
  • 3(7) + 5
  • 3(7) + 3(5)

    • Factorise the expression $-5x - 30$ in its simplest form.

  • $-5(x - 6)$
  • $-5(x + 6)$ (correct)
  • $5(x + 6)$
  • $5(x - 6)$

    • When rearranging the formula $V = LWH$ to make $W$ the subject, what is the correct formula for $W$?

    <p>$W = V / (LH)$</p> Signup and view all the answers

    What is the value of $C$ when $F = \frac{1}{2} (9F - 32)$?

    <p>$2F - 16$</p> Signup and view all the answers

    In a square patch of turf with side length $x$, what is the total area of the patch in terms of $x$?

    <p>$4x^2$</p> Signup and view all the answers

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