Gregorian Chant was originally notated with:

A.
colored lines.

B.
longas and breves.

C.
pictographs.

D.
neumes.

true or false: the bones and teeth of organisms are capable of not decaying and often become fossils. if false, make it a correct statement (20pts Total) Critical Section a) (4pts) List the three (3) standard goals of the mutual exclusion problem when there are two processes. b) (8pts) Using the code below, state one goal that is NOT satisfied and provide an execution sequence that violates the goal. c) (8pts) Using the code below, select one goal that IS satisfied and give a brief explanation that justifies why the goal is met for all possible execution sequences. Assume a common variable: lock = false; and assume the existence of an atomic (non-interruptible) test_and_set function that returns the value of its Boolean argument and sets the argument to true. \( \begin{array}{ll}\text { //Process } 1 & \text { Process } 2 \\ \text { while (true) }\{\quad & \text { while (true) }\{ \\ \quad \text { while(test_and_set(lock)); } & \text { while(test_and_set(lock)); } \\ \text { Critical section; } & \text { Critical section; } \\ \text { lock }=\text { false; } & \text { lock = false; } \\ \text { Noncritical section; } & \text { Noncritical section; } \\ \} & \}\end{array} \) In economic systems, which kind of decisions must be made about productive resources? PLEASE HELPP!!!President Theodore Roosevelt once said, "The first requisite of a good citizen in this republic of ours is that he shall be able and willing to pull his own weight." What did he mean?A. People should look after themselves first in an emergency.B. People should work hard to be physically fit and healthy.C. People should contribute to their communities by helping out.D. People should let others do the most difficult tasks. Solve for k if the line through the two given points is to have the given slope. (-6,-4) and (-4,k),m=-(3)/(2) Identify the step that you should do when evaluating a solution at the end of the decision-making process?. Final: Core Concepts First come First Serve Directions:Retention of Knowledge is always a problem in education and one I try to improve upon. Have you ever said, I can't remember what I learned in .... class? Retention of Knowledge. To help retain this knowledge, here is your Final Discussion.. Directions1. Pick a Concept or Term you learned over the semester. First come first serve, no repeating of terms. 2. Define that term and/or concept. 3. Explain it in your own words. 4. Give an example and explain the importance of this concept or Economics term. 5. Respond to another student's post - add value, insights, etc. a primary active transport process is one in which __________. view available hint(s)for part a molecules pass directly through the phospholipid bilayer of the plasma membrane The free exercise clause guarantees that the national government will not interfere with which of the following?Religion Americans at the time of the speech most likely- believed that nature was plentiful, so everyone had plenty of money.- felt like they had been betrayed by illegal business practices.- felt ready to forgive those who had caused the economic crisis.- believed that the economic downturn was the fault of consumers who had spent too much money.The answer is B. given a 14 percent return how long would it take to triple yourinvestment, solve using time value formula Explain the process of initializing an object that is a subclass type in the subclass constructor. What part of the object must be initialized first? How is this done? What is default or package visibility? Indicate what kind of exception each of the following errors would cause. Indicate whether each error is a checked or an unchecked exception. a. Attempting to create a scanner for a file that does not exist b. Attempting to call a method on a variable that has not been initialized c. Using 1 as an array index Discuss when abstract classes are used. How do they differ from actual classes and from interfaces? What is the advantage of specifying an ADT as an interface instead of just going ahead and implementing it as a class? A five-year project has a projected net cash flow of $21,000 in year 1,$28.000 in year 2,$24,000 in year 3,$18,000 in year 4, and $18,000 in year 5 . It will cost $50,000 to implement the project. If the required rate of return is 32 percent, conduct a discounted cas) flow calculation to determine the NPV. (Round your answer to nearest dollar amount. Negarive omount should be indicated by a minus sign.) Tao went to the beach and forgot to use sunscreen, which resulted in sunburn. His skin was red and painful to touch. What layer of the skin did the sunburn affect?a. Dermisb. Hypodermisc. Epidermisd. Hyperdermis why was the declaration of independence a remarkable philosophical statement for its time? Manufacturing costs, other than direct materials and direct labor, that cannot be cost- effectively traced to finished goods are called: A) Administrative expenses. B) Period costs, C) Prime costs. D) Factory overhead. E) Selling costs. What are the characteristics that distinguish a constitutionalcrisis from a political crisis True/False:- An SMTP transmitting server can use multiple intermediate SMTP servers to relay the mail before it reaches the intended SMTP receiving server.- SMTP uses persistent connections - if the sending mail server has several messages to send the receiving mail server, it can send all of them on the same TCP connection. A couple of purchases a leather sofa set for $3,800, but rather than paying in cash, the couple has decided to pay for the sofa set with equal monthly payments. This option charges 26% simple interest on the loan and requires repayment over 2.5 years. What monthly payment is required?Do not copy from Chegg and give complete answer with explanation what measurement represents the financial worth of a customer to a company over the course of their relationship?