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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>797.00-XXX=9d </p> <p>XXX=XX </p> <p>477/X=d </p> <p>XX=d </p> <p>XXX of articles XX XX </p> <p>2. D XX XXXXXX constant XXX partly varies XXXX X. When V XX, X = XXX and XXXX V = 54, D = XXX. i) XXXX the formula connecting X and X. </p> <p>X = mV + X , ( Linear equation y = mx + b) (XX) Find D XXXX V= XX. </p> <p>XXXX X=40, X=XXX XXX = XXX + C ** XXXX V=XX, X=XXX 192 = 54m + C *** XXXXXXXX ** XXXX *** 42 = 14m m = 3 XXX XXXX ** , XXX = 120 + X C = 30 D = XX + 30 X=3*73+30=249 </p> <p>X.(a) A cylindrical XXXX XXX storing XXX has a capacity XX XXXX cm³. If XXX height XXX radius are equal, calculate XXX XXXXX of XXX in XXX XXXX XXXX XXXX (XXXX π= XX/X) </p> <p>Volume of XXXXXXXX= <img src="XXXX:///C:\Users\XXXX\XXXXXXX\XXXXX\Temp\msohtmlclip1\01\XXXXXXXXXXXXX.gif" alt="\pi {r}^{2} h" width="XX" XXXXXX="15"> </p> <p>Here <em><b>r</b></em> and <em><b>h</b></em> XXX equal </p> <p>So, <em>XX<sup>X</sup>×r=XXXX</em> </p> <p><em>XX<sup>X</XXX>=XXXX</em> </p> <p><em>r<sup>3</XXX>=XXXX/π</em> </p> <p><em>r<XXX>X</sup>=XXXX/(XX/X)</em> </p> <p><em>r<sup>3</XXX>=(XXXX/XX)*7</em> </p> <p><em>r<sup>X</sup>=XX*7</em> </p> <p><em>r<XXX>3</sup>=X*X*7</em> </p> <p><em>r<XXX>X</sup>=X<sup>3</XXX></em> </p> <p><em>r=X</em> </p> <p><em>r=7 XXX h=X</em> </p> <p><em>Therefore, the XXXXX XX oil tank when XXXX XX XX.</em> </p> <p>(b) XXXX XXX perimeter XX a XXXXXXXXXXX XXXXX XXXXX is 10m by 5m. </p> <p><span XXXXX="XXXXXXXXXX"><i>XXXXXX (l) = 10cm</i></span> <span XXXXX="formulacss"><i>XXXXX (w) = 5cm</i></span> <span class="XXXXXXXXXX">XXXXXXXXX XX XXX XXXXXXXXX = X(l + w) units </span> <span XXXXX="formulacss"><i>P = 2(10 + X)</i></span> <span class="XXXXXXXXXX"><i>X = X (15)</i></span> <span XXXXX="XXXXXXXXXX"><i>P = 30</i></span> <span class="XXXXXXXXXX">Thus, XXX XXXXXXXXX of the rectangle is 30 m.</span><br> <br> </p> <p>4.XXXXX XXX equation: X-4-X/X=-X/X </p> <figure><img src="https://schoolsolver.XX.amazonaws.com/XXXXX/attachments/790Xva.XXX" XXXX-XX="XXXXX://schoolsolver.s3.amazonaws.com/media/XXXXXXXXXXX/790Xva.XXX"></figure><p><XXX src="XXXX:///X:\Users\user\AppData\XXXXX\Temp\msohtmlclip1\XX\XXXXXXXXXXXXX.jpg" width="XXX" height="34"> </p><img src="file:///X:\XXXXX\user\AppData\XXXXX\Temp\msohtmlclip1\01\clip_image006.gif" width="120" height="XXX"> <figure><XXX src="file:///C:\Users\user\AppData\XXXXX\XXXX\XXXXXXXXXXXX\XX\clip_image008.gif" width="12" XXXXXX="XX"></XXXXXX><p> </p> <p> </p>">
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