175 results for "square".
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Question in Content created by Newcastle University by
Newcastle University Mathematics and Statistics
Uses the χ2 test to see if there is any significant difference in preferences.
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The student is asked to find the square root of an integer of the form ±n2. If the root is not real, they should enter "nan".
A custom marking algorithm extends the built-in one to deal with "nan".
There's some custom javascript to set the expected answer correctly. In the future this will be possible in the marking algorithm - see https://github.com/numbas/Numbas/issues/856
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Completing the square twice to determine the radius and centre of a circle.
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simplifying, multiplication, fraction of square roots resulting in rational, square root of fraction resulting in rational, rationalising the denominator, simple rationalising the denominator conjugate
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Question in Maura's workspace
This question tests students' ability to use repeated squaring to perform modular exponentiation. Moduli are random numbers between 30 and 70, the base is a number between 10 and 29. To generate questions of approximately uniform difficult the exponent is taken to be 256 plus two smaller powers of 2.
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Given a randomised square root function select the possible ways of writing the domain of the function.
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Decide whether statements about square and cube numbers are always true, sometimes true or never true.
German translation of https://numbas.mathcentre.ac.uk/question/22768/always-sometimes-or-never-square-and-cube-numbers/ von Stanislav Duris.
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Question in Skills Audits for Maths and Stats
Several problems involving the multiplication of fractions, with increasingly difficult examples, including a mixed fraction and a squared fraction. The final part is a word problem.
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Question in Skills Audits for Maths and Stats
Factorising a quadratic expression of the form a2x2−b2 to (ax+b)(ax−b), using the difference of two squares formula.
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Question in Skills Audits for Maths and Stats
Rearrange expressions in the form ax2+bx+c to a(x+b)2+c.
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Question in Skills Audits for Maths and Stats
Factorise three quadratic equations of the form x2+bx+c.
The first has two negative roots, the second has one negative and one positive, and the third is the difference of two squares.
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Question in Skills Audits for Maths and Stats
Simple exercise in collecting terms in different powers of x
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Question in MESH
Simple questions on square numbers, square roots, cube number, cube roots and prime numbers.
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Question in HELM books
Rearrange a formula with a square root to make a variable under the root the subject.
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Question in HELM books
Rearrange a complex formula involving squares, square roots, fractions and additions. This is a fixed question with no randomisation.
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Question in HELM books
Convert a random value in square metres to square centimetres.
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Question in HELM books
evaluate sqrt(x/z) where x and z are random positive decimals.
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Question in HELM books
Factorise the difference of two squares, t^2-number^2. Number is a random perfect square, or 1 over a perfect square.
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Rearrange expressions in the form ax2+bx+c to a(x+b)2+c.
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Question in MASH Bath: Question Bank
Factorising a quadratic expression of the form a2x2−b2 to (ax+b)(ax−b), using the difference of two squares formula.
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Question in MASH Bath: Question Bank
Factorising a quadratic expression of the form x2+bx+c by completing the square.
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Question in HELM books
Evaluate a decimal: either 0.1,0.2,0.3,0.4,0.01,0.02,0.03,0.04 squared or cubed. Part of HELM Book 1.2
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Question in HELM books
Evaluate a simple fraction squared or cubed. Part of HELM Book 1.2
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Question in Musa's workspace
A few quadratic equations are given, to be solved by completing the square. The number of solutions is randomised.
