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Simplify each of the following expressions (where possible): (a) 2a + 5a − 3a (b) 4P − 2Q (c) 3w + 9w2 + 2w (d) 3xy + 2y2 + 9x + 4xy − 8x
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Arithmetic
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(a) Find the value of 2x − 3y when x = 9 and y = 4. (b) Find the value of 2Q2 + 4Q + 150 when Q = 10. (c) Find the value of 5a − 2b + c when a = 4, b = 6 and c = 1. (d) Find the value of (12 − t) − (t − 1) when t = 4.
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Arithmetic
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Evaluate:
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Arithmetic
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A net like membranous complex of superposed flat saccules with vesicles detaching from the extremities seen in electronic microscopy. What is the observed structure? What is its biological function?
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Arithmetic
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