Which value of r represents data with a strong negative linear correlation between two variables? 1) -1.07 2) -0.89 3) -0.14 4) 0.92

26,129 questions, page 35
1. chemistry

Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops

asked by Justin on April 8, 2014
2. chemistry

Are my answers correct? Identify each energy exchange as primarily heat or work and determine weather the sign of ΔE is positive or negative for the system. A. A rolling billiard ball collides with another billiard ball. The first ball (system) stops

asked by Justin on April 8, 2014
3. math

A car rents for ​\$45 per day plus 21 cents per mile. If x represents the number of miles Jorge drives per​ day, 45 plus0.21x represents the cost of the rental. If Jorge has ​\$66 to spend for the daily car​ rental, what is the maximum number of

asked by loreece on May 15, 2017
4. Algebra (math)

The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 4x + 1 How much

asked by Winchester on January 4, 2017
5. MATH URGENT!!!!!

The graph represents function 1 and the equation represents function 2: A graph with numbers 0 to 4 on the x-axis and y-axis at increments of 1. A horizontal straight line is drawn joining the ordered pairs 0, 3 and 4, 3. Function 2 y = 2x + 1 How much

asked by Anonymous on December 5, 2016
6. Statistics Range, Variance, and Standard Deviation

26. Flight Data: Find the range, variance, and standard deviation. Express answers using appropriate units, such as "minutes." Refer to Data Set 15 in Appendix B and use the times required to taxi out for takeoff. Flight 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3

asked by Alexis on May 10, 2016
7. research and evaluation

Give examples of both discrete and continuous data? What makes them different? Is the measurement of money continuous or discrete? Explain. Can discrete data be analyzed using the normal distribution? Why or why not?

asked by sue on November 18, 2010

Suppose 3s represents an even integer. What polynomial represents the product of 3s, the even integer that comes just before 3s, and the even integer that comes just after 3s? A. 27s^3 + 12s B. 27s^3 - 3s C. 27s^3 - 12s D. 3s^3 - 12s My calculations are

asked by Damsel-in-Distress on November 11, 2015

As the production manager for an electronic circuit company you have encountered the following situation. Part 1 A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently

asked by lisette on August 19, 2010
10. science

How would you design an experiment to determine which of two variables?

asked by Brandi on September 26, 2008
11. Science/Environmental Studies

What are some dependent variables for Global Warming?

asked by John Doswell on November 15, 2015
12. Algebra

In Algebra terms, what does "restrict the variables" mean?

asked by Emma on October 14, 2011
13. math

How do you solve equations with variables on both sides?

asked by Tolu on September 13, 2007
14. math

solve this in 3 variables.. i don't know where to start,,:(( y/4+z/3-x/2=4 y/2-x/6+z/15=2 y/8+z/5-x/3=2

asked by rose on January 15, 2011
15. math

simplify and state the restrictions on the variables. a^3/(a+1)^2 + a/(a+1)^2

asked by Barrie on December 3, 2007
16. college

What is an example of two variables that are likely to be correlated because they are both changing over time?

asked by Anonymous on September 27, 2010
17. math

simplify and state the restrictions on the variables. 4/mn * m/2

asked by Brittany on December 3, 2007
18. Differential Equations

How to solve y''+y=sin(x) by separation of variables?

asked by Jefferson on February 23, 2018
19. science

Can some one help me with the simpsons controls and variables worksheet please,

asked by Anonymous on October 5, 2008
20. Algebra 2

solve ax -3x + 5 = a+b for x. state any restrictions on the variables.

asked by Zach on December 16, 2014
21. statistics

what are the variables of statistics according to functional relatipnships?

asked by rhea on June 25, 2008
22. math

Simply the unknowns variables 5(2-c)=10(2c-4)-6(3c+1) 1.25y-20.5=0.5y-11.5 (3) 7p-3q=23(3)

asked by Mike on May 3, 2014
23. Algebra 1

S = n/2(A+t) solve for A I don't undersand what to do with all these variables.

asked by Sarah on October 18, 2010
24. Math

asked by Tanner on February 11, 2013
25. math

How do you solve systems of inequalities in two variables?

asked by kim on March 30, 2013
26. finitie math

2x+y+z=6 -3x-4y+2z=4 x+y-z=-2 solve the system of all variables using a matriz

asked by crystal on June 26, 2009
27. quantative

Provide one pair of variables that might be related to one another

asked by dana on August 17, 2011

what is the purpose of testing variables I am stuck, can you help me?

asked by nicki on June 6, 2009
29. Math

Define bound and free variables?

asked by Hjm on August 17, 2013
30. variables

what makes variables difficult to understand?

asked by randy on March 6, 2007
31. Math

How to find independent and dependent variables

asked by M on December 10, 2014
32. separation of variables

solve the value problem by separation of variables dy/dx=x^2/y when y=-5 and x=3

asked by jake on March 20, 2011
33. math

solve the system of equations in three variables -3x+y-z=-10

asked by Laura on March 7, 2013
34. Algebra

I need some examples for exponents with variables and numbers.

35. Math

This is about variables. The problem is d/2.5 - 3.4 = 4.6. What are the steps in finding out what the d is?

asked by Makayla on May 20, 2013
36. Quick math help

How would you solve this factoring with two variables? -14x^2-7x+21

asked by Anonymous on February 24, 2014
37. algebra 1

so i forgot how to get the variables on the same side in an equation such as x = y + 1 help?

asked by lily on November 29, 2017
38. Calculus

Simplify, stating any restrictions on the variables: x+1/2x^2-7x+6 - x-3/2x^2-x-3

asked by Jayson on February 22, 2019

What are scientific independent and dependent variables?

asked by Jasmin Villegas on December 1, 2010
40. Math

I need help with this problem. Factoring with Two Variables h^2  9hs + 9s^2

asked by Cheryl on September 6, 2010
41. math-differential equations

hi i need to know how to do this one thanks Find the solution to yx + x + (dy/dx) = 0 ; y(9) = -9 y = ???? Does this separate the variables? dy/dx=-x(y+1) dy/(y+1) = -x dx

asked by kayla on August 5, 2007
42. calculus

how do you separate these variables dy/dx=4sqrt(y)lnx/x, y(e)=9

asked by may on March 19, 2011
43. Pre Algebra Plz help asap!-:)

1.Which set represents a Pythagorean triple? 27, 38, 42 33, 44, 55*** 35, 38, 42 68, 72, 81 2.Which number completes the Pythagorean triple: 12, 16, ____? 18 20*** 22 24 3. Which set represents a Pythagorean triple? 1, 2, 4 2, 4, 6 3, 4, 10 5, 12, 13***

asked by Labbayk on October 5, 2015
44. algebra2

evaluate h(-2/3) if h(x) = [[x-2]] (-2/3)-2 = -2.666666667 is this the right correct? If those are absolute value signs surrounding the x-2 on the right, then the answer is +2.666..= 8/3 why is it a positive 8/3 instead of a negative because you subtracted

asked by anonymous on July 27, 2007
45. math

In 1990, the life expectancy of males in a certain country was 72.4 years. In 1994, it was 75.8 years...? Let E represent the life expectancy in year t and let t represent the number of years since 1990. The linear function E(t) that fits the data is

asked by scooby9132002 on July 4, 2009
46. health

In plain English what does this mean? Thank you, There are two confidentiality rules (and their respective settings) in MICA. The first confidentiality rule affects suppression of the display of the entire inner table (i.e., the individual cells) of a

asked by sofia on January 17, 2018
47. College Physics

A parallel plate capacitor is made of two 3.5 cm x 3.5 cm square plates that are separated by 1.6 x10 -5 m. The plates are charged to 4.8 nC each (positive and negative). An electron is released from rest at the surface of the negative plate and

asked by Collin on February 8, 2012
48. Math

Can someone help me with this: Descibe how to construct a histogram for a set of data and Describe how to construct a box plot for a set of data

asked by Jack on February 23, 2009
49. chemistry

Data: SO2(g) + ¨öO2(g) ¡æ SO3 (g) ¥ÄH = -99.1 kJ Given the above data, calculate the enthalpy change ¥ÄH when 89.6 g of SO2 is converted to SO3.

asked by syd on October 16, 2011
50. Math

STATISTICS Why is collecting data on the same time everyday more accurate when compared to collecting data at different times everyday?

asked by Suzanne on May 28, 2011
51. Math

Could someone explain how to graph the following problem? I don't quite understand what "Graph H for 0 ≤ t ≤ 3 and 300 ≤ H ≤ 340" is asking me to do... The National Oceanic and Atmospheric Administration (NOAA) has been measuring atmospheric carbon

asked by anna on November 30, 2012
52. Microeconomics - iso & indiff

What does isoquant/isocost & indifference curve and budget constraint analysis have in common? I know that they both 'look' similar & both strive to find the same things "consumers want utility" & "producers want eco profits" (maximising both). What other

asked by lostkid on November 7, 2006
53. calculus

s=-4.9t²+245t+14.7 s=-4.9(t²-245/4.9t)+14.7 s=-4.9(t²-50t)+14.7 s=-4.9(t²-50+625-625)+14.7 s=-4.9(t²-50+625)+(-4.9)(-625)+14.7 s=-4.9(t-25)²+30625.5+14.17 s=-4.9(t-25)²+3077.2 as you can see on the process of the problem on the part that

asked by steve Alexander on October 29, 2008
54. Stats

I have tried to find the p value and z statitcs for each of the firms below and I am so confused becuase my answers arent making any sense. The randome sample is 40, the hypothesis we are testing is a lower tail test 35, pop st deviation is 6 and level of

asked by Maya on September 23, 2018
55. Math

What are the similarities and differences between functions and linear equations? How do you graph functions on a coordinate plane? Is there an instance when a linear equation is not a function? Provide an example. Write a function for your classmates to

asked by AR on February 22, 2010
56. Math

What are the similarities and differences between functions and linear equations? How do you graph functions on a coordinate plane? Is there an instance when a linear equation is not a function? Provide an example. Write a function for your classmates to

asked by AR on February 22, 2010
57. math

How do you factor 2x^2-5x+2? (x-2)(2x-1) how do you figure that out? trinomials like that can usually be done intuitively, but you should have been taught a method that you can use for general cases. Look at the first term of 2x^2 and think where that can

asked by George on May 2, 2007
58. cosecant/secant

the formula for secant is: 1/x the forumula for cosecant is: 1/y for the coordinates (negative square root of 2/2, square root of 2/2) how come the cosecant is square root of 2 and the secant is negative square root of 2? for my cosecant I got negative

asked by Jen on February 2, 2008
59. C++ Programming

Design and create a class named Stats that has an array of 12 doubles as one of its member variables. The values in the array should be set by making 12 calls to a public member function named setValue that accepts two arguments, an integer indicating

asked by kyuu09 on June 8, 2010
60. 7th grade Math quick help Ms. Sue

Can you check to see if tese are right? 1. What is 0.68 written as a simplified fraction? 68/100 17/25 100/68 34/25 2. Mrs. Whimsey’s class is having a pizza party. If there are 16 students and 4 pizzas cut into 8 slices, what answer choice represents

asked by Delilah on October 3, 2012
61. Regression

Hi, Can anyone help me with a regression problem, I am doing energy species hypothesis ... I have calculated data and from f value of 22.39 have found the sq root of 4.73. 4.73 is significant at 1% c = f (x) = 0x + 2.2 ( not sure what this output means) I

asked by Gary on June 2, 2009
62. Math

Can someone help me with these T.T 1.Which polynomial function would have the end behaviour of as x-> -∞, y= +inf and as x-> ∞, y-> -∞? a) f(x) = -6x^4 - x^5 + 5x^3 - x^2 - 4x + 9 b)f(x)= 6x^4 + x^5 - 5x^3 + x^2 + 4x - 9 c)f(x) = 3x^2 + x - 11

asked by Jacob on December 8, 2011
63. Help

What role do genes play in brain development in the following. I am having hard time finding information. Gene-environment correlation Gene-environment interaction Epigenetic processes

asked by Betty on February 7, 2018
64. computer science

Under the Von Neumann architecture, a program and its data are both stored in memory. It is therefore possible for a program, thinking a me mory location holds a piece of data when it actually holds a program instruction, to accidentally (or on purpose)

asked by Tefo sello on September 12, 2014
65. math

find the linear function f(x(=mx+b whose graph has the given slope and y intercept. slope is +19/15 and y-intercept is (0,-4) the linear function is f(x)=

asked by Anonymous on September 21, 2010
66. math

find the linear function f(x)=mx +b, whose graph has the given slope and y-intercept slope is -13/9 and y-intercept is (0.-6) the linear function is f(x)=

asked by Anonymous on September 20, 2010

Instructions: Prepare your answers using Excel and show your work to get full or partial credit. Question 1: Using the file Wages.xlsx which contains information of working individuals, for a nationwide firm (Value 7 points). a) Run Descriptive Statistics

asked by Katie on December 14, 2011
68. physics

A rod with a length L = 0.385 m and a nonuniform linear mass density rests along the y axis with one end at the origin. If the linear mass density of the rod is given by λ = (5.00 ✕ 10−2 kg/m) + (1.50 ✕ 10−2 kg/m2)y then a) what is the total mass

asked by Pissed off at this question rn on April 1, 2015
69. HCT

The data shown below shows the amount in dollars spent on groceries in one day by 30 people. 204 210 227 218 254 256 238 242 253 227 251 243 233 251 241 237 247 211 222 231 218 212 217 227 209 260 230 228 242 200 1 mark a. Is it a continuous or a discrete

asked by abeer on March 7, 2012
70. Math

The mass of a cat is about 3.6 kg. Use the formula b  0.01m0.7 where b represents the brain mass and m represents the body mass. What is the approximate mass of the cat’s brain?

asked by Amanda on July 13, 2015
71. physics

A small droplet of oil with mass of 1.84×10-15 kg is held suspended in a region of uniform electric field directed upward with a magnitude of 6625 N/C. Is the excess charge on the droplet positive or negative? NEGATIVE b.How many excess elementary charges

asked by TP on September 1, 2011
72. Math

A car rents for \$35 per day plus 20cents per mile. If x represents the number of miles jorge drives per day, 35+0.20x represents the cost of the rental. If jorge has \$89 to spend for the daily car rental, what is the maximum number of miles he can travel

asked by Bryan on November 9, 2008
73. Math

Using the Descartes Rule of Sign count the number of sign changes of f(-x) and determine the number of negative real zeros. 1. f(x)=x^3+x^2-10x-24 My answer: A few signs due change but not enough to say they changed." 0 sign changes of f(-x), which means

asked by kim on October 24, 2014

Draw a stem-and-leaf plot for the data set. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) Data set A: The annual wages of employees at a small accounting firm are given in thousands of dollars. 50 15 18

asked by Mary Ann on June 10, 2014
75. Calculus Help

I am given this data table: Time After Consumption (min): 30, 60, 90, 120, 150, 180 Amount of Codeine in Blood (mg): 27.0, 23.5, 21.2, 18.7, 16.6, 14.5 Question: I created a scatter plot of the data. How would I determine an equation to model the amount of

asked by sandy on June 2, 2014
76. QBASIC, Computers

The following is a list of salaries of the six employees in a certain company: Name Salary T. Angel \$43,000 F. Smith \$31,000 K. Johnston \$22,000 P. Miner \$18,000 C. Altman \$27,000 A. Lu \$19,000 Read a single dimension array for name and another array for

asked by Jason on November 29, 2012
77. psychology

An experimenter is studying how time spent on a cell phone affects people's ability to drive safely. Driving the car is the: dependent variable. coefficient of correlation. independent variable. operational condition. Im between C and D. Leaning toward C.

asked by john on October 31, 2010
78. Psychology

An experimenter is studying how time spent on a cell phone affects people's ability to drive safely. Driving the car is the: dependent variable. coefficient of correlation. independent variable. operational condition. I think the answer is A but i am not

asked by Chloe on March 14, 2011
79. chemistry

For AgI(s), would you expect the molar solubility to be a linear function of temperature? Why or why not? If not, how would you plot molar solubility and temperature to get a linear function?

asked by julie on March 7, 2010
80. statistics

Using our data set from Unit 1, compose a 3-page e-mail to the head of the American Intellectual Union, which includes the following: 1.Begin your e-mail to AIU by first providing an overview of the database, that is, a story about the characteristics that

asked by hilda on November 22, 2011
81. Educational Technology

Data cannot be sorted of filtered accurately if there are (fill in the blank) A. Even numbers B. Only data fields C. Blank fields or records D. Only catagory fields Is the answr D? Thank you

asked by Callie on November 18, 2014
82. english

According to deterrence theory, criminals are no different from law-abiding people. Criminals [economist Paul H. Rubin writes] "rationally maximize their own self-interest (utility) subject to constraints (prices, incomes) that they face in the marketplace

asked by Mary on October 13, 2009
83. math 116

In 1995, the life expectancy of males in a certain country was 65.3 years. In 1999 it was 68.8 years. Let E represent the life expectancy in year t and let t represent the numbers of years since 1995. the linear function E(t) that fits the data is,

asked by angela on October 17, 2010
84. Algebra 1

In 1993, the life expectancy of males in a certain country was 67.2 years. In 1999, it was 70.3 years. Let E represent the life expectancy in year t and let t represent the number of years since 1993. The linear function E(t) that fits the data is E(t)=_t

asked by Chasity on March 4, 2012
85. Physics - pendulum negative work

A 2.20 kg pendulum starts from a height of 5.00m. It swings back and forth through one whole oscillation but only returns to a maximum height of 4.75m. After a long time the pendulum eventually winds down and comes to a stop. How much total negative work

asked by Tyger2020 on August 28, 2017
86. Physics - pendulum negative work

A 2.20 kg pendulum starts from a height of 5.00m. It swings back and forth through one whole oscillation but only returns to a maximum height of 4.75m. After a long time the pendulum eventually winds down and comes to a stop. How much total negative work

asked by Tyger2020 on August 26, 2017
87. Algebra

Simplify each expression. Assume that no denominators are zero. Write each answer without using negative exponents. The ^'s mean they're exponents y^-3y^-4y^0 ------------

asked by Katie on October 15, 2006
88. Comm Tech

1.)what is the purpose of a scatter plot? A.)To create a design like graph paper B.)To help visualize the relationship between two types of data C.)To sytematically compare three datasets D.)To add and subtract data in a worksheet 2.)What is Microsoft

asked by YRN DJ on November 9, 2015
89. physics

i have to do an experiment to "determine the relationship between the angle of the rampand speed of an object sliding down it" i was told i had to have a few variables. -controlled(keep the same) -independent(change 1 thing) -dependent(measure 1 thing) so

asked by bjc on February 3, 2010
90. Physics

A ball of radius 0.300 m rolls along a horizontal table top with a constant linear speed of 3.30 m/s. The ball rolls off the edge and falls a vertical distance of 2.50 m before hitting the floor. What is the angular displacement of the ball while it is in

asked by Mary on April 24, 2007
91. English

1. If you are a bird, be an early bird And catch the worm for your breakfast plate. 2. If you're an early bird, you will catch the worm for your breakfast plate. (Does #1 mean #2 in meaning? a litle different?) 3. Be strong, and be healthy. 4. If you are

asked by rfvv on October 24, 2011
92. algebra

Samir begins riding his bike at a rate of 6 mph. Twelve minutes later, Chris leaves from the same point and bikes along the same route at 9 mph. At any given time, t, the distance traveled can be calculated using the formula d = rt, where d represents

asked by kat on October 17, 2014

For high quality representation of an analog waveform that varies between 10Hz and 100Hz, a digital data acquisition system will have to record data at what minimum frequency? a. 1000 sps b. 5000 sps c. 200 sps d. 100Hz e. 50Hz

asked by Alex on May 23, 2010
94. physics

two -8.1 nC charges, are each separated by 5.0 mm from a proton. If the two negative charges are held fixed at their locations and the proton is given an initial velocity v, what is the minimum initial speed v that the proton needs to totally escape from

asked by riiii on November 2, 2012
95. Math

Hello, For math I have to make a graph of two linear relations. One has to be the operating costs of a zoo or amusement park and the other cost of admission for me and my family. Using both linear relations I then have to find another relation that would

asked by Gianna on July 3, 2011
96. statistics

Given the ensuing well drilling data, answer the following. [Reference: #4.78, page 172] • .30 (30%) probability of a productive well absent test information • Pre-drilling ballistics test ‘s affirmative result correctly predicts a productive well

asked by sophia on October 25, 2007
97. English

The following sentence indicates what kind of bias: The best art can cut through our tendency to experience life with complacency and prejudgment? a)There is no bias. b)a positive bias c)a partly positive and partly negative bias d)a negative bias

asked by Help on August 5, 2009
98. physics

You are planning to build a log cabin in northern Minnesota. You will pull the logs up a long, smooth hill to the building site by means of a rope attached to a winch. You need to buy a rope for this purpose, so you need to know how strong the rope must

asked by nate on September 27, 2012
99. math

A building is 4 feet higher than twice the height of a nearby tree. If B represents the height of the building and t represents the height of the tree,

asked by dajanai on September 29, 2011
100. finance 3 questions

Some analysts believe that the term structure of interest rates is determined by the behavior of various types of financial institutions. This theory is called the A. ANSWER Expectations hypothesis B. Segmentation theory C. Liquidity premium theory D.

asked by Jason on July 25, 2008