Compilers, like programmers, can introduce inefficiencies while translating source language into IR. As a result, the compiler’s optimizer is very important in removing these inefficiencies. Give two examples of inefficiencies you would expect an optimizer to improve. Give two examples of inefficiencies you would expect an optimizer to miss, even though they can be improved. Explain why an optimizer would have difficulty improving them. (8 points)

Which of the following program properties cannot be checked using a regular expression? (2 points)

At what angle are the noon-time sun’s rays at 23.5°S latitude on December 21st?

If an area is described as a “good air-mass source region,” what does that mean?

Angle 1 and Angle 2 in the figure below are complimentary angles.  What are the measures of each angle?  Show your work in the text box below and round your answers to one decimal place.

Time Value of Money ScenarioTesla is evaluating three investment options to improve liquidity:Option A: Receive $100,000 in 5 years (interest rate: 8%, compounded annually)Option B: Receive $20,000 annually for 5 years (interest rate: 8%, compounded annually)Option C: Receive $50,000 now and $60,000 in 5 years (same interest rate) a. Compute the present value of each option. b. Which option has the highest present value? c. Beyond numerical value, what strategic and financial considerations should Tesla evaluate before making a final decision?

13. A bond is issued at a discount when: 

14. When a company records a finance lease, it should: 

5. Delta Airlines declares and pays a $2 per share cash dividend on 20,000 outstanding shares. What is the total reduction to retained earnings from this transaction? 

9. A company sold a delivery truck with a historical cost of $60,000 and accumulated depreciation of $45,000 for $20,000. What is the gain or loss on the sale?