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 (C)</p> Signup and view all the answers

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

<p>4¹⁸ (B)</p> Signup and view all the answers

What is the base of the hexadecimal numbering system?

<p>16 (B)</p> Signup and view all the answers

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

<p>2 (A)</p> Signup and view all the answers

What is the supplement of 65⁰?

<p>115⁰ (D)</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 (D)</p> Signup and view all the answers

What is the equation of the straight line?

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

What is the internal angle of a hexagon?

<p>120⁰ (C)</p> Signup and view all the answers

What is the value of log 50?

<p>1.699 (C)</p> Signup and view all the answers

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

<p>2 (B)</p> Signup and view all the answers

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

<p>5/3 (A)</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 (C)</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 (C)</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 (A)</p> Signup and view all the answers

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

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

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

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

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

<p>Reflex angle (B)</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 (C)</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 (B)</p> Signup and view all the answers

What is the trigonometrical ratio of adjacent divided by hypotenuse?

<p>cos (B)</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 (A)</p> Signup and view all the answers

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