 |
1 | |
An algorithm is a series of generalised instructions for solving problems. |
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| | A) | TRUE |
| | B) | FALSE |
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2 | |
An expression that may take any number of values, usually symbolised by a lower case letter, is called: |
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| | A) | An integer |
| | B) | A function |
| | C) | An algorithm |
| | D) | A variable |
| | E) | A system |
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3 | |
Which of the following is not a way of solving algebraic expressions? |
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| | A) | Multiplying both sides of the equation by a number |
| | B) | Multiplying out bracketed expressions |
| | C) | Adding a constant to the left hand side of the equation |
| | D) | Taking common factors outside brackets |
| | E) | Using addition, subtraction, division, multiplication etc. to get all the variables to one side of the equation |
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4 | |
+7 and -7 are the values of s which satisfies the following equation:
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q04eq01.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
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| | A) | TRUE |
| | B) | FALSE |
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5 | |
What is the value of y that satisfies the algebraic expression
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q05eq01.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
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| | A) | -5 |
| | B) | -3 |
| | C) | -5 and +3 |
| | D) | +5 and -3 |
| | E) | None of the above |
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6 | |
If
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q06eq01.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]>
is to be rearranged so that x is expressed in terms of y, then |
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| | A) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q06eq03.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | B) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q06eq04.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | C) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q06eq05.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | D) |  <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q06eq06.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
| | E) | None of the above. |
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7 | |
If you want to solve a series of simultaneous equations for four variables, you need at least three equations. |
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| | A) | TRUE |
| | B) | FALSE |
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8 | |
A set of simultaneous questions will always solve if the number of equations and the number of variables is the same. |
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| | A) | TRUE |
| | B) | FALSE |
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9 | |
The values of x and y that simultaneously satisfy 2x + 3y = 29 and x - 2y = 4 are: |
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| | A) | y = +3 and x = +10 |
| | B) | y = +10 and x = +3 |
| | C) | y = +6 and x = -5 |
| | D) | y = +0 and x = +10 |
| | E) | y = -21 and x = -38 |
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10 | |
A scalar quantity represents |
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| | A) | A single scale of measurement |
| | B) | A vector |
| | C) | A matrix |
| | D) | An array dimension |
| | E) | A series of elements |
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11 | |
The dimension of a matrix is three. |
|
| | A) | TRUE |
| | B) | FALSE |
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12 | |
A vector |
|
| | A) | is a way of expressing numbers in rows and columns |
| | B) | is an ordered, one dimensional array of scalars |
| | C) | is always written as a column |
| | D) | is always written as a row |
| | E) | is another word for spreadsheet |
|
13 | |
If the number of miles travelled by a lorry in a day is given by mi, then the total travelled in a seven day week can be expressed by
 <![CDATA[<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0077098056/70736/ch03q13eq01.GIF','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (1.0K)</a>]]> |
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| | A) | TRUE |
| | B) | FALSE |
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14 | |
Elements are the constituent numbers of a vector, a matrix and an n-dimensional array. |
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| | A) | TRUE |
| | B) | FALSE |
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15 | |
________ subscripted notation is required to represent the elements of an array. |
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| | A) | Single |
| | B) | Un- |
| | C) | Double |
| | D) | Super |
| | E) | Full-colour |
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