- Prove the equtaion x^7-3x^4-4x^2+x-1=0 can't have more than 3 real roots.?

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2CH3OH→2CH4+O2,ΔH=+252.8 kJ how much heat is transferred when24.0 g of CH3OH(g) is decomposed by this reaction at constant pressure.? Last time the Eastern Time Zone was 13 hours behind my time zone and now it's 12 hours behind. Don't know how it works, can someone explain? A factory makes 250 tables a day. What is an equation that can be used to find the total number of tables made, y, after x days? Why all the reporting? Economists will always reach the same conclusion in their positive analyses.?