Many systems and technologies have been designed to communicate over long distances. They all send information that has been encoded into a signal. What must a receiver be able to do to understand a signal that is being sent to them?

The Rockwell hardness index for steel is determined by pressing a diamond point into the steel and measuring the depth of penetration. For 50 specimens of an alloy of steel, the Rockwell hardness index averaged 62 with standard deviation 8. The manufacturer claims that this alloy has an average hardness index of at least 64. Is there sufficient evidence to refute the manufacturers claim at the 1% significance level? Homework American Corporation has the following financial information. Year 1 Year 2 Cash $202.95 $245.90A/R 398.02 485.34Inventory 785.12 648.54 If Year 1 is the base year, what is the percentage increase/decrease of each current asset amount?A. Cash = 21% increase, A/R = 22% increase, Inventory = 17% decrease. B. Cash = 25% decrease, A/R = 21% increase, Inventory = 27% decrease. C. Cash = 21% increase, A/R = 22% decrease, inventory = 17% decrease. What do the action words in this sentence tell the reader?The flag appeared old when looked at carefully.The man looked quickly and saw a flag.The flag was hidden from view for several minutes.The man looked for a long time until finding the flag You invested $19,000 in two accounts paying 4% and 8% annual interest, respectively.If the total interest earned for the year was $1160, how much was invested at each rate?The amount invested at 4% is $. What is the slope m of a line that is perpendicular to the line represented by x = 8? (If an answer is undefined, enter UNDEFINED.) How are hereditary diseases passed down from one generation to another? PLEASE PLEASE PLEASE HELP ME! Mikayla bought a bag of 84 pieces of candy and she wants to divide them up evenly and place into bags but doesnt wont more than 20 bags list the possible ways she can fill the bag Erosion can be cause by only natural causes True or False ? What is 0.895 repeating simplified in a fraction Question 2 of 5Every night for the past four years Amanda had hurried past the creepyold house on her way home from school. Tonight was different,though. This time, as she passed by the ruin, she heard the distinctmewing of a kitten from inside. She stopped for a moment, thinkinghow much more terrifying the haunted corridors of that dark mansionmust be for a helpless animal. Finally, she took a deep breath andwalked on eggshells up to the front door,Which statement best explains how the plot of the story helps develop themain character?O A. Amanda's approach to the door shows that she laughs in the faceof danger, especially when it comes to helping others.O B. Amanda's pause in front of the house shows that she is stubbornin her ways but softens when she feels sympathy for others.O C. Amanda's history of hurrying past the house shows that she has acowardly nature and tends to look out for herself and no one else.O D. Amanda's decision to enter the house shows her instinct to carefor others is stronger than her fear of the unknown. Would modern liberals or modern conservatives accept the views of 19th century liberals ? Hello! I need some help figuring out what 12 x 6,012 is. Ty! What number is 1/10 of 10? This set has me absolutely confused. Can anyone help with the first problem? Which is a function of a protein macromoleculeA. Provides quick energyB. Insulates organisms against the coldC. Moves things in and out of cellsD. Makes cells waterproof Which group of people are credited with the invention of the astrolabe and the compass 37) Which BEST describes the purpose of the first section of this passage?A)It provides a counter-argument, so the reader canbetter comprehend the speech.B)It creates a conversational tone, so the reader canbetter understand the speech.5er,C)It provides background information for context, sothe reader can better understand the speech.D)It creates a question and answer format, so thereader will know what style to expect from the restof the passage.ce Let R unrestricted and R restricted be 0.4366 and 0.4149 respectively. The difference between the 9) unrestricted and the restricted model is that you have imposed two restrictions. There are 420 observations. The F-statistic in this case is:_______ A) 10.34 B) 4.61 C) 7.71 D) 8.01 Write an equation to find the missing angle in the triangle. Remember all the angles of a triangle add up to 180 degrees. The full question is in the picture.