Mathematics Refresher: Arithmetic Operations
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Questions and Answers

What is the result of converting 20 pounds to grams?

  • 4500
  • 9070 (correct)
  • 1000
  • 2000
  • What is the result of simplifying the expression (x-4)(x-6)?

  • x² - 10x + 24 (correct)
  • x² + 10x + 24
  • x² - 10x - 24
  • x² + 10x - 24
  • What is the result of evaluating the expression 2x = 3(x+2)?

  • x = 2
  • x = 6
  • x = -6 (correct)
  • x = -2
  • What is the result of converting 0.8 to a fraction?

    <p>8/10</p> Signup and view all the answers

    What is the result of evaluating the expression (4²x4⁴)³?

    <p>4¹⁸</p> Signup and view all the answers

    What is the base of the hexadecimal numbering system?

    <p>16</p> Signup and view all the answers

    What is the value of x in the equation 3x – 2 = 2x + 4 = 6?

    <p>2</p> Signup and view all the answers

    What is the supplement of 65⁰?

    <p>115⁰</p> Signup and view all the answers

    What is the value of y in the equation x+y = 2 and 2x - y = 7?

    <p>-1</p> Signup and view all the answers

    What is the equation of the straight line?

    <p>Y = -2x + 10</p> Signup and view all the answers

    What is the internal angle of a hexagon?

    <p>120⁰</p> Signup and view all the answers

    What is the value of log 50?

    <p>1.699</p> Signup and view all the answers

    What is the y-intercept of the line having the equation 4y=4x+8?

    <p>2</p> Signup and view all the answers

    What is the gradient of the line having the equation 5x -3y=2?

    <p>5/3</p> Signup and view all the answers

    What is the tangent of the angle between 16 cm and 20 cm sides in a right-angled triangle?

    <p>0.6</p> Signup and view all the answers

    What is the sine of the angle between 16 cm and 20 cm sides in a right-angled triangle?

    <p>0.7</p> Signup and view all the answers

    What is the third side of a right-angled triangle with sides of 3 inches and 4 inches?

    <p>5</p> Signup and view all the answers

    What is the gradient of the line having the equation X+3y=2?

    <p>-1/3</p> Signup and view all the answers

    What is the sum of the degree measurements of complementary angles?

    <p>90 degrees</p> Signup and view all the answers

    What is the name of the angle that measures between 180 and 360 degrees?

    <p>Reflex angle</p> Signup and view all the answers

    What is the formula to find the length of the hypotenuse in a right-angled triangle?

    <p>a² + b² = c²</p> Signup and view all the answers

    What is the name of the triangles that have equal angles but are of different sizes?

    <p>Similar triangles</p> Signup and view all the answers

    What is the trigonometrical ratio of adjacent divided by hypotenuse?

    <p>cos</p> Signup and view all the answers

    What is the name of the line that intersects a line segment at its midpoint and is perpendicular to that line segment?

    <p>Line segment bisector</p> Signup and view all the answers

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