- Write an algebraic expression that is equivalent to the given expression tan(arccos x/9)?

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Graph the inequalities 1. Y<3|x+4| +2
2. Y> Or equal to 2(x-3)^2+5
3.Y<|x+2|-3
4. Y>Or equals to-2(x-3)^2-2? How to work out the problem "Exess solid Na is added to 54.0 mL of water. How many moles of H2 gas can be produced?"? Distance in kilometers. Light travels in one year at the rate of 186,000m/s. To the nearest star if from earth its 4.3 light years away? If f(25) =1 f(x)= (2*f (x+1)+1)/(2) Find f (3)?
Domain can only be plus integers And range can be all real numbers? How much solar energy (in watts per square meter) reaches Pluto's surface?