Explain the main differences between grammars in problems 1, 2 and 3.

1. Expr -> Expr + Term I Expr * Term I Term

    Term-> 0 I ... I 9 I (Expr)

2. Expr -> Term+ Expr I Term * Expr I Term

    Term -> 0 I …. 9 I (Expr)

3. Expr -> Expr + Term I Term

Term-> Term* Factor I Factor

   Factor-> 0 I ... I 9 I (Expr)

Using biochemistry concepts and connections by Appling answer the following:

Answer 1 or 2

1. Several of the pathways in this module contain examples of enzymes with opposite function controlled through reciprocal allosteric regulation. Pick an example from one of the pathways studied (pentose phosphate pathway, glycolytic pathway) and describe how a specific allosteric effector affects two different enzymes in an opposing manner. Your answer should also include an explanation of why this reciprocal regulation is important for the control of both pathways.

2. Pick one enzyme that is regulated by both an allosteric effector and covalent modification. The effect of the two regulators can be the same or different (for example, both can activate/inhibit the enzyme or one can activate while the other inhibits). Explain the conditions that lead to each type of regulation, how the effect of each makes metabolic sense in the context of the larger pathway, and why both types of regulation are needed for this particular enzyme.

EDITED

Complete the journal entries as necessary for both Part 1 and Part 2.

Part 1. Transaction

1. On January 1st of 2020, Casey bought 10% of Apple 100,000 shares of outstanding common stock at $20 a share.

2. On December 31, 2020 Apple reported $40,000 of net income and paid $20,000 of dividends.

3. On December 31, 2020, the market price of stock was $ 25 a share. Assume there was a zero balance in the fair value adjustment account.

Part 2. Complete the journal entries as required: Transaction

4. On January 1st of 2020, Casey bought 30% of Apple 100,000 shares of outstanding common stock at $20 a share and has significant influence.

5. On December 31, 2020 Apple reported $40,000 of net income and paid $20,000 of dividends.

6. On December 31, 2020, the market price of stock was $ 25 a share. Assume there was a zero balance in the fair value adjustment account before this transaction.

1. How many complex numbers z are there such that z³ = 1?

2. Translate x(t) = -cos(πt + π/3) into standard form A⋅sin(2πft + φ) (There are multiple correct answers)

3. If f_s = 100 Hz, what are three aliasing frequencies for f = 80 Hz?

4. A signal x is delayed by one sample and scaled by −1/2, producing a new signal y[n] = −1 2 x[n − 1]. (a) How does Y[m] relate to X[m]? (b) What about |Y[m]| and |X[m]|?

5. If a signal x’s DFT has entirely real coefficients X[m] (has no imaginary component), what can you deduce about x? Consider the phase for each analysis frequency.

6. Let x[n] be a signal with N = 5000 samples. (a) If you compute an STFT with a frame length of K = 1000 and hop length h = 250, what will be the shape of the resulting spectrogram? (b) How would it change if you set K = 2000? (c) What if you set h = 100?

QUESTIONS 1-2 test your understanding of the causes and consequences of economic growth.

1. Is population growth good for idea generation? A Yes, population growth is good for idea generation. B No, population growth is bad for idea generation.

2. Are people in the U.S. better off when other countries grow rich? A Yes, people in the U.S. are better off. B No, people in the U.S. are worse off.

1) What is the cash rate? Provide a definition and its current value. (1 mark)

2) If there is an expected surplus of reserves in the banking system today, what will the Reserve Bank do?

3) What would happen to the cash rate if the Reserve Bank chose not to act? (1 mark)

4) What is quantitative easing, and how might quantitative easing affect the cash rate?

Is 2k-1 odd?
I get that 2(some int k) + 1 is the property for odd numbers.
The main question:
I am confused on how 2k-1= 2k-2+1 which is a form of k?

1- Make two labelled drawings: 1) a lancelet, and 2) a benthic tunicate. Then discuss why both organisms are placed in the phylum Chordata.

2-Describe a) the mammal characteristics and b) the Carnivora characteristics evident in a domestic cat Felis silvestris catus.

You are fractionally distilling 100 mL of a 1:1 solution of cyclohexane and toluene. After 2 mL has distilled you collect a sample for analysis. It is determined that your sample contains a mixture that is 92:8 cyclohexane/toluene. Calculate the number of theoretical plates if the relative volatility (?) of the original solution is 2.33

Problem 1 (Hedging)

A US exporter expects to receive £1 million in 2 months for her exports to the UK. The current exchange rate is US$2.30/£. She is worried that the pound might depreciate over the next 2 months and wants protection against its decline but she also want to benefit from a possible rise in £ over the next 2 months. Put options and call options on the £, with 2-month maturity are available.

1. What should she do?

2. Suppose the 2-month put options exercisable at US$2.50/£ are trading at US$0.01. What would be her cash revenue, given your answer in part a), if at the 2 month end the spot exchange rate turns out to be

   1. US$2.00/£

   2. US$3.00/£

3. What would be her minimum cash revenue, no matter what the spot rate at the end of 2 months turn out to be?

4. What would be the upfront cost (fee) for undertaking the appropriate options contract?

5. What would she do if the expected £1 million at the 2-month end are not received and what would be her loss if that happens?