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1.(a) I added 18 to 3 times a number, the result
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<p>P=9d+320 </p> <p>797.00=9d+320 </p> <p>797.XX-320=XX </p> <p>477=XX </p> <p>477/9=d </p> <p>XX=d </p> <p>XXX of XXXXXXXX XX XX </p> <p>X. D XX XXXXXX XXXXXXXX XXX XXXXXX varies with X. XXXX V XX, X = 150 and XXXX X = XX, D = 192. i) XXXX the XXXXXXX XXXXXXXXXX X and V. </p> <p>X = mV + C , ( Linear equation y = XX + b) (ii) Find D when V= 73. </p> <p>XXXX V=40, X=150 XXX = XXX + X ** XXXX V=54, X=XXX 192 = 54m + X *** subtract ** XXXX *** XX = 14m m = X XXX into ** , XXX = 120 + X C = 30 X = XX + XX D=X*XX+30=249 </p> <p>3.(a) A XXXXXXXXXXX tank XXX storing oil has a capacity XX XXXX cm³. XX its height XXX radius are equal, calculate XXX depth of oil in XXX tank XXXX XXXX (Take π= XX/X) </p> <p>XXXXXX XX cylinder= <XXX src="XXXX:///C:\XXXXX\user\XXXXXXX\Local\Temp\msohtmlclip1\01\XXXXXXXXXXXXX.XXX" XXX="\pi {r}^{2} h" width="34" XXXXXX="XX"> </p> <p>XXXX <em><b>r</b></em> XXX <em><b>h</b></em> are XXXXX </p> <p>XX, <em>πr<sup>2</XXX>×r=1078</em> </p> <p><em>XX<sup>X</sup>=XXXX</em> </p> <p><em>r<XXX>3</sup>=XXXX/X</em> </p> <p><em>r<sup>3</sup>=1078/(XX/X)</em> </p> <p><em>r<XXX>X</sup>=(1078/XX)*X</em> </p> <p><em>r<sup>X</sup>=XX*7</em> </p> <p><em>r<XXX>X</sup>=7*X*7</em> </p> <p><em>r<XXX>X</XXX>=7<sup>3</sup></em> </p> <p><em>r=X</em> </p> <p><em>r=X and h=7</em> </p> <p><em>Therefore, XXX XXXXX of oil XXXX when full XX 7m.</em> </p> <p>(b) XXXX XXX perimeter XX a XXXXXXXXXXX XXXXX which XX 10m by XX. </p> <p><span class="XXXXXXXXXX"><i>Length (l) = 10cm</i></span> <span XXXXX="XXXXXXXXXX"><i>Width (w) = 5cm</i></span> <span class="XXXXXXXXXX">XXXXXXXXX XX XXX rectangle = X(l + w) units </span> <span XXXXX="XXXXXXXXXX"><i>P = 2(10 + 5)</i></span> <span class="formulacss"><i>X = X (15)</i></span> <span class="XXXXXXXXXX"><i>P = XX</i></span> <span XXXXX="XXXXXXXXXX">Thus, XXX XXXXXXXXX of XXX rectangle XX 30 m.</span><br> <br> </p> <p>X.XXXXX XXX equation: X-4-2/5=-X/X </p> <figure><img src="XXXXX://schoolsolver.s3.amazonaws.com/media/attachments/XXXXXX.JPG" XXXX-XX="XXXXX://XXXXXXXXXXXX.XX.XXXXXXXXX.com/media/XXXXXXXXXXX/XXXXXX.JPG"></figure><p><XXX XXX="XXXX:///X:\XXXXX\XXXX\XXXXXXX\Local\XXXX\msohtmlclip1\XX\XXXXXXXXXXXXX.XXX" width="101" height="XX"> </p><XXX src="XXXX:///X:\XXXXX\user\AppData\XXXXX\XXXX\XXXXXXXXXXXX\01\XXXXXXXXXXXXX.gif" width="XXX" height="300"> <figure><XXX src="XXXX:///C:\XXXXX\user\AppData\XXXXX\Temp\msohtmlclip1\01\clip_image008.XXX" width="12" XXXXXX="XX"></figure><p> </p> <p> </p>">
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