1140 results for "ratio".
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Question in MASH Bath: Question Bank
Solve linear equations with unknowns on one. Including brackets and fractions.
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Question in Peter's workspace
Given some random finite subsets of the natural numbers, perform set operations $\cap,\;\cup$ and complement.
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Question in MfEP Progress Quizzes
Students are asked to solve two simulatineous linear equations in an application of mixing two liquids to arrive at a given final volume and concentration. Students are expected to write up working for their solution and upload it seperately. Final volume, final concentration and concentrations of each solution are randomised.
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Question in MfEP Progress Quizzes
Question asks students to find the time taken for an object thrown vertically upward from a platform to reach the ground. Set up randomly chooses environment to be on Earth, Mars or the Moon and uses appropriate acceleration due to gravity. The initial velocity of the body and height of the platform above the ground are randomly selected. In this version students are expected to write up their working and submit it seperately to the Numbas question. Students are expcted to recognise that only the positive solution has physical significance.
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Question in MASH Bath: Question Bank
Using given information to complete the equation $c= A \cos{ \left( \frac{2 \pi}{P} \left( t-H \right) \right) }+V $ that describes the concentration, $c$, of perscribed drug in a patient's drug over time, $t$. Calculating the maximum concentration and the concentration at a specific time.
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Question in MASH Bath: Question Bank
Solving a separable differential equation that describes the rate of decay of radioactive isotopes over time with a known initial condition to calculate the mass of the isotope after a given time and the time taken for the mass to reach $m$ grams.
Decay Constant - Radioactivity - Nuclear Power (nuclear-power.com)
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Question in MASH Bath: Question Bank
Calculating area under curves of the form $ax^2+bx$ and $ax^4+bx^3+cx^2+dx+e$ in a contextualised problem.
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Question in Skills Audits for Maths and Stats
Dividing amounts in ratios
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Question in Skills Audits for Maths and Stats
Picking a ratio out of a list that is not equivalent to the others.
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Question in Skills Audits for Maths and Stats
Calculating the integral of a function of the form $ax^2 \cos(bx)$ using integration by parts.
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Question in Skills Audits for Maths and Stats
Calculating the integral of a function of the form $\frac{nx^{n-1}}{x^n+a}$ using integration by substitution.
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Question in Skills Audits for Maths and Stats
Using the various versions of $\cos{2x}$ identity to integrate $\sin^2{x}$ and $\cos^2{x}$.
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Question in Skills Audits for Maths and Stats
Calculating the integral of a function of the form $\frac{c}{(x+a)(x+b)}$ using partial fractions.
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Question in Skills Audits for Maths and Stats
Calculating the definite integral $\int_{n_1}^{n_2}a_1x^{b_1}+a_2x^{b_2}+a_3x^{b_3} dx$.
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Question in Skills Audits for Maths and Stats
Calculating the integral of a function of the form $a_1x^{b_1}+a_2x^{b_2}+a_3x^{b_3}$ using a table of integrals.
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Question in Brendan's workspace
Integration by parts.
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Question in Ugur's workspace
mass of tetrahedron via integration
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Question in MESH
Add, subtract, multiply and divide numerical fractions.
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Question in How-tos
This question shows how to use the question's JavaScript preamble to request data from an external source, and use that data in question variables.
Note that this means the question only works when the external source is available. Use this very carefully, and avoid it if you possibly can!
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Question in How-tos
A random proper fraction $a/b$ with denominator in the range 2 to 30 is picked, and the student must write $\frac{a}{b} \pi$.
The point of this question is to demonstrate that the correct answer is shown as a multiple of $\pi$ rather than a decimal.
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Question in How-tos
A custom marking algorithm picks out the names of the constants of integration that the student has used in their answer, and tries mapping them to every permutation of the constants used in the expected answer. The version that agrees the most with the expected answer is used for testing equivalence.
If the student uses fewer constants of integration, it still works (but they must be wrong), and if they use too many, it's still marked correct if the other variables have no impact on the result. For example, adding $+0t$ to an expression which otherwise doesn't use $t$ would have no impact.
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Question in HELM books
Choice of 2 formulae. The first is a fraction of the form y=(r+x)(1-rx). The second is of the form y=sqrt[(1-x)/(1+x) ]. Rearrange to make x the subject.
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Question in HELM books
Evaluate pi / (2r+s) given values for r and s (r>0, s positive or negative)
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Question in DIAGNOSYS
No description given
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Exam (1 question) in Jane's workspace
No description given
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Question in Engineering Statics
Student calculates $\bar{y}$ for a triangle. Must use similar triangles get element $dA$.
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Question in Engineering Statics
Student is given two points defined symbolically, and must find the equation of the line they define, then use integration to find an equation for the area under the line, bounded by the x-axis and vertical lines through the two points.
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Exam (11 questions) in Martin's workspace
Questions on integration using various methods such as parts, substitution, trig identities and partial fractions.
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Question in Voorbeeldvragen examen
Vul de x-waarden van de extrema in.
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Exam (17 questions) in Martin's workspace
Quiz designed to test integration of powers of x including negative powers, surds, fractions, etc.