Economics questions!!?!?!? on foreign currency exchange?
1) If GDP in India increased, then its currency would most likely appreciate relative to the dollar which means the dollar depreciated and that would result in an increase of US exports by making them cheaper. 2) currencies trade on FOREX which stands for foreign currency exchange which is a market comprised of participating US and foreign investors. 3) decreasing interest rates in the US corresponds to an increase in supply of the USD which results in a lower price relative to the euro, americans buying european goods increases demand for european goods and thus increases the value of the euro relative to the USD, european consumers boycotting US goods reduces demand for dollars and thus decreases the value of the dollar, if GDP in the EU decreases, then demand for euros will decrease and thus the value of the dollar will increase relative to the euro. 4)Europeans exchanging their euros for dollar denominated assets will increase the supply of euros and increase the value of the dollar relative to the euro which means less dollars buy more euros 5) if its supply decreases, its price increases which means the dollar experiences relative depreciation. 6) if the exchange rate adjusts to one AUD equals one USD, then that means one dollar buys less AUD and thus the USD has depreciated
How do I solve this math question?
First let's try to develop a general theory for these kinds of questions. So lets consider a general equation of Conic section which is [math]ax^2+2hxy+by^2+2fx+2gy+c = 0[/math]Rearrange this equation as [math]ax^2+2x(hy+f)+(by^2+2gy+c) = 0 [/math]Solving for the [math] x[/math] we have [math]x= \dfrac{-2(hy+f)\pm2\sqrt{(hy+f)^2-a(by^2+2gy+c)}}{2a} [/math]Now if we want that given equation should have linear factors then this also means that above expression should have linear relationship between [math]x[/math] and [math]y[/math]. Now for this to happen the term under square-root should be a perfect square.[math]\implies (hy+f)^2-a(by^2+2gy+c)[/math] should be perfect square Simplifying this equation and we will get [math](h^2-ab)y^2+2y(gh-af)+(g^2-ac) = 0 [/math]Now this equation will be a perfect square if it has only one root i.e it's discriminant is zero.[math]\implies 4(gh-af)^2 - 4(g^2-ac)(h^2-ab) = 0[/math] Simplify this and we will get [math]\boxed{af^2+ch^2+bg^2-2fgh-abc = 0}[/math] Hence this condition should be true if you want to factorize any such equation into two linear factor. More neat and aesthetic form to express this condition is [math] \begin{vmatrix} a & h & g \\ h & b & f \\ g & f & c \end{vmatrix} = 0 [/math]. This is also called discriminant of Conic section . (It decides whether the given equation represent an ellipse or parabola or circle or point or hyperbola or pair of straight line. Here it represents the pair of straight line).Now come to this particular equation. (I am changing [math]a[/math] to [math]P[/math] and [math]b[/math] to [math]Q[/math] to avoid confusion).So given equation is [math]3x^2 + 2Qxy + 2y^2 + 2Px - 4y + 1[/math]. If you compare this to standard form you will find that ,[math]a= 3 , h = Q , g = P , b = 2 , f = -2[/math] and [math]c = 1[/math] So discriminant of this equation is [math] \begin{vmatrix} 3 & P & Q \\ Q & 2 & -2 \\ P & -2 & 1 \end{vmatrix} = 0[/math]Solving and rearranging this we have ,[math]Q^2+4PQ + 2P^2 + 6 = 0 [/math]Clearly [math]q[/math] is a root of quadratic equation given by [math]x^2+4Px+2P^2+6[/math]
Currency question?
I ve really never understood currency so if someone could answer/explain that would be great :) The Canadian exchange rate increased from $0.94 U.S in June 2010 to $1.04 U.S. in June 2011 and it decreased from 77 euro cents in June 2010 to 71 euro cents in June 2011. (i) Did the Canadian dollar appreciate or depreciate against the U.S. dollar and the Euro? (ii) Explain the exports effect of these changes in the exchange rate.
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Macroeconomics questions?
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Suppose GDP increases in the United States, but it doesn’t increase in other nations. As a result of this change, which of the following is true? I. The demand for the U.S. dollar will increase. II. The demand for the U.S. dollar will decrease. III. U.S. exports will increase as a result of the changing value of the U.S. dollar. IV. U.S. exports will decrease as a result of the changing value of the U.S. dollar. a. I only. b. II and IV only. c. I and IV only. d. II and III only. e. I and II only.
Macro Econ questions... mult choice?
Serena has a transactions account at Socorro Bank. She writes a check for $250 and gives it to Billy, who has an account at Brownville Bank. Billy deposits the check in his account. The required reserve ratio is 0.20. This transaction has which of the following effects? A. Decreases the money supply by $250 B. Increases the total reserves of Brownville Bank by $250 C. Increases the money supply by $250 D. Decreases the excess reserves in Socorro Bank by $250