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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>XXX.XX-XXX=XX </p> <p>477=9d </p> <p>XXX/X=d </p> <p>53=d </p> <p>The of articles is 53 </p> <p>X. X is partly constant and XXXXXX XXXXXX XXXX X. XXXX X 40, X = 150 XXX XXXX V = XX, D = XXX. i) XXXX XXX XXXXXXX XXXXXXXXXX X XXX X. </p> <p>X = mV + C , ( Linear XXXXXXXX y = XX + b) (XX) XXXX X XXXX V= 73. </p> <p>When X=40, D=150 XXX = XXX + X ** XXXX X=54, X=192 XXX = XXX + X *** XXXXXXXX ** from *** XX = XXX m = X XXX XXXX ** , XXX = 120 + C C = XX D = 3V + XX X=X*73+30=249 </p> <p>X.(a) A XXXXXXXXXXX tank XXX storing XXX XXX a capacity XX 1078 XXX. XX its XXXXXX XXX radius XXX equal, calculate XXX depth XX oil in XXX tank XXXX XXXX (Take X= 22/X) </p> <p>XXXXXX XX cylinder= <img src="XXXX:///X:\XXXXX\user\AppData\XXXXX\Temp\XXXXXXXXXXXX\XX\clip_image002.XXX" alt="\pi {r}^{X} h" width="XX" XXXXXX="XX"> </p> <p>XXXX <em><b>r</b></em> XXX <em><b>h</b></em> XXX equal </p> <p>So, <em>XX<sup>2</sup>×r=XXXX</em> </p> <p><em>πr<XXX>3</sup>=1078</em> </p> <p><em>r<sup>3</sup>=1078/X</em> </p> <p><em>r<XXX>3</sup>=1078/(22/7)</em> </p> <p><em>r<sup>X</sup>=(XXXX/XX)*X</em> </p> <p><em>r<sup>3</XXX>=49*X</em> </p> <p><em>r<XXX>X</sup>=7*X*X</em> </p> <p><em>r<XXX>3</sup>=X<sup>3</sup></em> </p> <p><em>r=X</em> </p> <p><em>r=7 XXX h=7</em> </p> <p><em>XXXXXXXXX, the depth of oil XXXX when full is XX.</em> </p> <p>(b) Find the XXXXXXXXX XX a rectangular field XXXXX is 10m by 5m. </p> <p><span XXXXX="XXXXXXXXXX"><i>XXXXXX (l) = 10cm</i></span> <span class="formulacss"><i>XXXXX (w) = 5cm</i></span> <span class="XXXXXXXXXX">Perimeter of XXX XXXXXXXXX = X(l + w) units </span> <span class="formulacss"><i>P = X(10 + X)</i></span> <span XXXXX="formulacss"><i>X = 2 (XX)</i></span> <span XXXXX="XXXXXXXXXX"><i>X = XX</i></span> <span XXXXX="formulacss">Thus, XXX perimeter XX XXX XXXXXXXXX XX 30 m.</span><XX> <br> </p> <p>4.XXXXX the equation: X-X-X/X=-X/2 </p> <figure><img XXX="https://schoolsolver.s3.amazonaws.XXX/media/attachments/XXXXXX.XXX" XXXX-s3="https://XXXXXXXXXXXX.XX.amazonaws.XXX/XXXXX/attachments/790Xva.XXX"></XXXXXX><p><img XXX="XXXX:///C:\Users\user\XXXXXXX\Local\XXXX\XXXXXXXXXXXX\01\clip_image004.XXX" width="101" height="34"> </p><XXX src="XXXX:///C:\XXXXX\XXXX\XXXXXXX\Local\XXXX\XXXXXXXXXXXX\XX\clip_image006.XXX" width="XXX" height="300"> <figure><img src="XXXX:///X:\Users\XXXX\AppData\Local\Temp\msohtmlclip1\XX\XXXXXXXXXXXXX.XXX" width="XX" height="XX"></figure><p> </p> <p> </p>">
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