235 results for "negative".
-
Question in Skills Audits for Maths and Stats
Differentiate a polynomial expression involving coefficients and, negative and fractional indices.
-
No description given
-
No description given
-
No description given
-
Things like "expand -(2x+3y+4)"
-
Fractions already have a common denominator. Addition and subtraction 50:50 split, when subtracting, the answer is negative half the time. Students shouldn't have to worry about reducing fractions by design.
-
No description given
-
No description given
-
No description given
-
No description given
-
No description given
-
Dealing with adding, subtracting, multiplying, dividing, and taking powers of negative numbers.
-
Question in MfEP Progress Quizzes
Student needs to solve a quadratic equation to calculate time taken for a diver to hit the water after diving from a diving board. Height of the board and initial upward velocity of the diver are randomly generated values. student needs to know that surface of the water is height 0, and only positive root of quadratic has physical meaning. Question is set to always give one positieve and one negative root.
-
Question in Deactivated user's workspace
Using the chain rule with polynomials and negative powers.
-
Question in Jinhua's workspace
Using the chain rule with polynomials and negative powers
-
Question in MfEP Progress Quizzes
Question asks student to find zeros of a quadratic equation - disguised as finding time for particle to reach a given position. 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. Coefficients of the quadratic are randomly chosen within linits which give one positive and one negative root.
-
Question in MfEP Progress Quizzes
Students need to solve a quadratic equation and recognise that only the positive root has physical significance. Roots are randomised with one always negative and one positive. Equation can be factorised fairly easily or the quadratic formula can be used to find the solution. Advice gives solution by factorisation.
-
Question in MfEP Progress Quizzes
This question is an application of a quadratic equation. Student is given dimensions of a rectangular area, and an area of pavers that are available. They are asked to calculate the width of a border that can be paved around the given rectangle (assuming border is the same width on all 4 sides). The equation for the area of the border is given in terms of the unknown border width. Students need to recognise that only one solution of the quadratic gives a physically possible solution.
The dimensions of the rectangle, available area of tiles and type of space are randomised. Numeric variables are constructed so that resulting quadratic equation has one positive and one negative root.
-
Question in Skills Audits for Maths and Stats
Calculations with negative numbers.
-
Question in Skills Audits for Maths and Stats
Calculations with negative numbers.
-
Question in Skills Audits for Maths and Stats
Calculations with negative numbers.
-
Question in Skills Audits for Maths and Stats
Calculations with negative numbers.
-
Question in Skills Audits for Maths and Stats
Calculations with negative numbers.
-
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.
-
Question in Skills Audits for Maths and Stats
perform a calculation involving negative indices.
-
Merryn's copy of Fractions: adding and subtracting, numerical, already with common denominator Ready to useQuestion in MESH
Fractions already have a common denominator. Addition and subtraction 50:50 split, when subtracting, the answer is negative half the time. Students shouldn't have to worry about reducing fractions by design.
-
The expected answer involves the logarithm of a negative number, which doesn't have a unique solution.
The part's marking algorithm evaluates the exponential of the student's answer and the expected answer, and compares those.
-
The expected answer involves the logarithm of a negative number, which doesn't have a unique solution.
The part's marking algorithm checks that the student's answer differs from the expected answer by a multiple of 2π.
-
Question in HELM books
Evaluate pi / (2r+s) given values for r and s (r>0, s positive or negative)
-
Question in HELM books
evaluate the function y=ax+b for given values of a,b and x, each of which may be positive or negative.
