Cumulative Exam — Cumulative exam Answers

What does a residual value of 1.3 mean when referring to the line of best fit of a data set?

The value of a computer depreciates with age, as shown in the table.Value of a Computer

Analyze the diagram below and answer the question that follows. Can you prove that ? Justify your answer. A. Yes, the triangles are congruent by SAS. B. Yes, the triangles are congruent by SSS. C. Yes, the triangles are congruent by SSA. D. No, not enough information is given. Please select the best answer from the choices provided

The table shows the side length and approximate area of an octagonal stop sign.Area of a Stop Sign

Which relationships could have a negative correlation? Select three options.number of hours worked and free timespeed of a car and minimum stopping distancethe speed of a train and the length of time to reach the destinationadult’s head circumference and agea tadpole’s age and the length of it’s tail

Which sample fairly represents the population? Select two options.using a yearbook to determine the most popular names for girls in the United Statesasking the people exiting a vitamin store how often they exercise to determine the amount of time the average American exercisescalling every registered member of the national Republican Party to determine the voter turnout for a city’s mayoral racesending a mandatory and confidential e-mail survey to every tenth employee of a company to determine overall job satisfactiontaking a poll in the main hallway between classes to determine the number of students who would be interested in a school trip to New York City

The data set represents the number of rings each person in a room is wearing.0, 2, 4, 0, 2, 3, 2, 8, 6What is the interquartile range of the data?

Mr. Walker is looking at the fundraiser totals for the last five years.

Maria gathered the data in the table. She finds the line of best fit to be y = 2.78x – 4.4.

Analyze the diagram below and answer the question that follows. Is it possible to show that is congruent to ? A. Yes; by the angle addition postulate, and by the symmetric property of congruence, so by SAS. Therefore, by CPCTC. B. Yes; by the segment addition postulate, and by the reflexive property of congruence, so by SAS. Therefore, by CPCTC. C. No; we cannot prove that , so we cannot use CPCTC to show that . D. No; , but is not a corresponding angle to , so they cannot be proven congruent by CPCTC. Please select the best answer from the choices provided

Analyze the diagram below and complete the instructions that follow. Given: The diagram above; , , and all bisect each other at Prove: . Statements Reasons 1) ; , , and all bisect each other at ; and are right angles 1) 2) , , and 2) 3) 3) 4) and are right triangles 4) 5) 5) A. 1) Given 2) Definition of bisector 3) Transitive property of congruence 4) Definition of a right triangle 5) HL theorem B. 1) Given 2) Given 3) Transitive property of congruence 4) Definition of a right triangle 5) HL theorem C. 1) Given 2) Definition of bisector 3) Reflexive property of congruence 4) Definition of a right triangle 5) HL theorem D. There is not enough information to prove the triangles congruent. Please select the best answer from the choices provided