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1.Simplify the two equations: 4x+y=17and 2x+y=9. 2. Rearrange one of the equations to make y=: y=9-2x. 3.Substitute into other equation:4x+9-2x=17. 4. Simplify:2x=8 x=4. 5.Substitute back into either of t...

DNA replication takes place by semi-conservative replication (i.e. only half of the strand in each DNA molecule are from the original DNA molecule). First, the enzyme DNA helices is required to break the ...

In German, most prepositions are followed by a noun in a specific case. For the group of prepositions mit, nach, von, zu, aus, bei, seit, gegenüber, außer, the noun that follows takes the dative case. For...

The Bank of England (BoE) has a target for inflation of 2.0%. If inflation rises above 2% the BoE will therefore try and decrease inflation. Increasing the bank rate leads commercial banks to (usually) in...

Quadratic formula: where ax^2+bx+c =0, x = (-b±√(b^2-4ac))/2a.Rearrange the formula in the question to get 3x^2+4x-20 = 0.From the quadratic in the question we can see that a = 3, b = 4, c = -20.Therefore...