Y = 3 cos 100x (2t - x), the value of is (a) 4 cm (b) 6 сm (c) 2 сm (d) 1 сm
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- A section of a farm land can be approximated as a rectangle that is 48 m wide and 172 mlong. Express the area of the farm land in square kilometers.(a) What Is the area and uncertainty in area of one side of a rectangular plastic brick that has a length of (21.4 + 0.4) cm and a width of (9.8 0.1) cm? (Give your answers in cm².) 209.72 X 6.06 x) cm² (b) What If? If the thickness of the brick is (1.2 ± 0.1) cm, what is the volume of the brick and the uncertainty in this volume? (Give your answers in cm³.) 1.73 X 0.432 x) cm³calculate the following and express the answer in the proper number of significant figures: (3.245x0.035x9.0023)/(4.076x2.01x42.3)
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