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Mathematics for Economics and Business 6th Edition Jacques Solutions Manual Full Download: http://alibabadownload.com/product/mathematics-for-economics-and-business-6th-edition-jacques-solutions-manual/
Solutions to Problems Getting Started
(e) Just put the cursor over cell C5 and type in the
new mark of 42. Pressing the Enter key causes cells D5 and D10 to be automatically updated. The new spreadsheet is shown in Figure SI.3.
1 (a) This is shown in Figure SI.1.
Figure SI.3 2 (a) 14
Figure SI.1
(b) 11 (c) 5 3 (a) 4; is the solution of the equation 2x − 8 = 0.
(b) Type the heading Total Mark in cell D3.
Type =B4+C4 into cell D4. Click and drag down to D9.
(b) Figure SI.4 shows the graph of 2x − 8 plotted
between x = 0 and 10.
(c) Type the heading Average: in cell C10.
Type =(SUM 4:D9))/6 in cell D10 and press Enter. [Note: Excel has lots of built-in functions for performing standard calculations such as this. To find the average you could just type =AVERAGE(D4:D9) in cell D10.] (d) This is shown in Figure SI.2.
Figure SI.4 (c) x2 + 4x + 4; the brackets have been ‘multiplied out’
in the expression (x + 2)2. (d) 7x + 4; like terms in the expression 2x + 6 + 5x − 2
have been collected together. (e) Figure SI.5 shows the three-dimensional graph of
Figure SI.2
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the surface x3 − 3x + xy plotted between −2 and 2 in both the x and y directions.