- 6 : x = 30 : 20 solve for x = ?

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If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? Which pattern of speciation is most important in nature? Allopatric or sympatric why? Naphthalene sublimation rate=3*10^-5/min. Volume of room=60m^3. How would I calculate the naphthalene concentration in the air of the room? Differentiate(t) = (cos^3 t+ 3cost +7)^9? If you started with 3.60g of Copper and reacted it with an excess of nitric acid what mass of copper hydroxide would you expect to recover?