# 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 127-
## algebra

using product rule, power rule, negative rule using scientific notation. 5.4*10^6/2.7*10^4=5.4/2.7*10^6/10^4=2*10^2

*asked by plz help on May 12, 2012* -
## linguistics

Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?

*asked by Monique on March 26, 2011* -
## linguistics

Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?

*asked by Monique on March 26, 2011* -
## ethnics help

The instructor states the following that i have to cover these points on a)characteristics of orientalism b)how orientalism has involved into prejudice and discrimation c)How to promote tolerance and reduce prejudice in our cities. and the syllabus states

*asked by minemine on November 2, 2006* -
## Math

An airplane, after 1 hour in the air, arrives at a point 350 miles south of its departure point. There was a steady wind of exactly 25 mph from the northwest during the entire flight. Which represents the airplane's average air speed?

*asked by Ana on May 5, 2014* -
## Math

A friend opens a savings account by depositing $1000. He deposits an additional $75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18

*asked by Shakira on January 8, 2014* -
## CALC HARD...

Suppose that 430 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral with

*asked by HELP on October 29, 2010* -
## math

A friend opens a savings account by depositing $1000. He deposits an additional $75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18

*asked by Shakira on January 8, 2014* -
## math

A friend opens a savings account by depositing $1000. He deposits an additional $75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18

*asked by Shakira on January 8, 2014* -
## Math

jody gets paid $200.00 per week, plus $100.00 for every oil change she completes. write the equation that shoes the relationship between the number of oil changes and her weekly income. then write the slope of the line that represents the relationship

*asked by Anon on December 10, 2014* -
## math

The community is having a book sale to raise money for a new computer. The library sells each book for $4.00. complete the table, where b represents the number of books sold. How much money will the library earn if b=44? b 4b 40 160 44 ? 50 200 I don't

*asked by jared on March 15, 2013* -
## Chemistry

a) To make an acid solution, 6.8 x 10-3 mole of a strong acid (6.8 x 10-3 mole H3O+) is dissolved in water to give a 550 mL solution. What is the pH and [OH-] of the solution? b) 150 mL of water is added to 50 mL of the solution produced in question 3.

*asked by Anonymous on October 17, 2013* -
## Chemistry. PLEASE HELP

a) To make an acid solution, 6.8 x 10-3 mole of a strong acid (6.8 x 10-3 mole H3O+) is dissolved in water to give a 550 mL solution. What is the pH and [OH-] of the solution? b) 150 mL of water is added to 50 mL of the solution produced in question 3.

*asked by Anonymous on October 17, 2013* -
## Food engineering/biology

Hey Can anyone help me out with this problem. For part a i understand i plot microbial numbers against time on semi log paper to determine D value for the two temperatures. But i'm unsure how to do part b. Alicyclobacillus acidoterrestris is a quite hat

*asked by Jennifer on May 23, 2010* -
## Algebra

Hello again! This is a practice test. I know the answer to it; however, I really want to know HOW to solve it for the real test. Question: Which inequality represents all possible solutions of -6n < -12? The Answer is: n > 2 I just want to know how to

*asked by Celia on February 26, 2019* -
## Math

In the United States workers spend 72% of their gas usage to go to and from work. What fraction represents their non-work travel and gas usage?

*asked by Lillie on November 12, 2008* -
## Mathematics of finance 1

A company has sales of 160000 which represents a 6.5% increase over the previous year. what were the sales over previous year? please elaborate the method and formula

*asked by TARAN on February 12, 2017* -
## Calculus

If h(t) represents the height of an object above ground level at time t and h(t) is given by h(t)=-16t2+11t+1 find the height of the object at the time when the speed is zero.

*asked by Melissa on September 13, 2010* -
## Algebra/Math

Kim poured a 24 ounce container of OJ into 5 cups and poured the same amount of OJ into each cup. Which rational number represents the amount of OJ in each cup? A.) 5/24, B.) 5 or C.) 24/5

*asked by Ava on September 29, 2018* -
## Calculus and vectors

Velocity represents the slope of a displacement function. Suppose an object was moving to the right, then stopped, then continued moving to the right. What would the displacement function look like?

*asked by Court on December 16, 2013* -
## Algebra 2

Which probability matches the probability histogram? Assume that there are 2 trials. X = 2 where X represents the number of successes. . P(success)=0.3 P(success)=0.4 P(success)=0.6 P(success)=0.7

*asked by Arianna on September 9, 2016* -
## Algebra

The first element of a geometric sequence is 1 and the common ratio is 3; determine the smallest 4 digit numeral that represents an element of this geometric sequence

*asked by xavier on December 16, 2012* -
## math

each letter in the following problems represents a different number 0 + 9. letters remain constant witin the problems. can you figue out what number each letter represes? he + me = we

*asked by holly on September 17, 2016* -
## calsulus

if h(t) represents the height of an object above ground level at time t and h(t) is given by h(t)=-16t^2+13t+1 find the height of the object at the time when the speed is Zero. h(t)=?

*asked by Jenny on September 14, 2010* -
## Calculus

If h(t) represents the height of an object above ground level at time t and h(t) is given by h(t) = −16t2 + 96t + 1, find the height of the object at the time when the velocity is zero.

*asked by Melissa on September 22, 2010* -
## math

Martha read 120 pages in her book, which has a total of 200 pages. Which fraction best represents the portion of the book that she has not read?

*asked by angelika caylen on April 7, 2014* -
## Health

Research with animals suggests that compared with adults, adolescents are ________ to the negative effects of alcohol intoxication—such as sedation, hangover, and loss of coordination. A. More sensitive B. Less sensitive C. Not at all sensitive D. None

*asked by Noemi on February 11, 2016* -
## algebra

Find the largest possible integer n such that there exists a non-constant quadratic polynomial f(x) with integer coefficients satisfying f(1)∣f(2),f(2)∣f(3),…f(n−1)∣f(n). Details and assumptions: ~For (possibly negative or zero) integers m and k

*asked by flex on May 13, 2013* -
## Pre-Algebra

Can I have someone check this please? I wouldn't want to do the whole page, then find out I had done them all wrong. :( [Percents of Change] A $100 digital watch is now $72 Decrease, 72/100 = negative percent. 100/72.00 = .72 .72 - 1 = 30%? Thanks. 30% is

*asked by Dean on October 27, 2009* -
## Chemistry

calories given off when 85g of water cools from 48C to 23C. Express your answer using two significant figures. I know the answer is 2100 cal, but I just need to know why the answer is a positive value instead of negative, when it is supposed to be cooling

*asked by Sam on September 8, 2011* -
## MATHS

Find the largest possible integer n such that there exists a non-constant quadratic polynomial f(x) with integer coefficients satisfying f(1)∣f(2),f(2)∣f(3),…f(n−1)∣f(n). Details and assumptions For (possibly negative or zero) integers m and k

*asked by HELP!! on May 17, 2013* -
## Physics

It takes 133 J of work to move 3 C of charge from the negative plate to the positive plate of a parallel plate capacitor. What voltage difference exists between the plates? Answer in units of V.

*asked by Davie on February 13, 2015* -
## math

calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}

*asked by please help on October 11, 2009* -
## office finances

what can a computerized spreadsheet do that a paper spreadsheet cant b.keep track of financial data c.recalculate itself after changes my answer is c

*asked by susue on December 27, 2013* -
## Math

calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}

*asked by Dominick on December 12, 2010* -
## Calculus

The function f is continuous on the interval [3, 13] with selected values of x and f(x) given in the table below. Use the data in the table to approximate f '(3.5) x 3 4 7 10 13 f(x) 2 8 10 12 22

*asked by Jim on April 6, 2018* -
## Algebra

Solve by using the quadratic formula To get help, you need to give more specific data. Please repost with the specific information. Thanks for asking.

*asked by PLEASE HELP on July 12, 2007* -
## Math

Is this statement true? The least squares regression line is a unique line for each data set? I would say yes.

*asked by John on September 21, 2013* -
## math

How do you figure out the slope without drawing the graph? I kinda forgot. I have a chart with data, and I need to know the slope please help thank you

*asked by Jason on October 3, 2007* -
## statistics

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

*asked by blueyeshadow on January 7, 2011* -
## nursing

How do decision theory, probability theory, inference, and generalization relate to data analysis?

*asked by julie on September 23, 2011* -
## STATS

7. Calculate b0 and b1 and make an equation of regression line for the set of data given in Table 3 Table 3 x y 1 12 2 15 3 16 5 18 6 21 8 23

*asked by Mary on March 30, 2010* -
## Math

calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}

*asked by Anonymous on November 1, 2009* -
## Chemistry

What data do you need to determine whether the following reaction is spontaneous or not? 4Fe(s) + O2(g) ----> 2Fe2O2(s) Would it be temperature, delta H and delta S?

*asked by Sharkeisha on August 5, 2015* -
## research

How do decision theory, probability theory, inference, and generalization relate to data analysis?

*asked by Mary on October 19, 2013* -
## english

just wonderin-is there any sites on interent where i can find data bout autism 2010. i cant find anything anywhere

*asked by Anonymous on February 28, 2010* -
## statistics

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

*asked by karen on August 20, 2010* -
## math

Summation of indexed data, I added the numbers up and I get -27 find the summation 29x does this mean I multiply the -27 by 29 Thank you

*asked by Mary Ann on July 12, 2015* -
## math grade 3

need to draw data sets to find the mean. I know how to use this putting the numbers in order from least to greatest, but how do I draw this?

*asked by Joel on September 20, 2007* -
## Statistics

how can I determine weather to reject or fail to reject the following nul hypothosis: let a= o.01, data: s= 3.1, n=55 and H(0) st dev 2.8 and H(1)< 2.8

*asked by Carl on April 19, 2013* -
## Math

In a class of 28 sixth graders all but one of the students are 12 years old. Which two data measurements are the same for the students ages?

*asked by Christian on August 31, 2017* -
## Finite Math Help Please!!!

Finite Math Help Please!!! Can someone help me ? I am confused about this Problem? Median Quartile 1 (Q1) Quartile 3 (Q3) for boxplot 9 10 11 12 13 14 15 16 17 18 19 20 Data

*asked by fred on October 25, 2016* -
## What would the effect size be?

Based on the data bellow, what would the effect size be? Group one 12 and group two 11. Standard deviation 3.

*asked by Penelope on November 17, 2014* -
## statistics

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

*asked by Stefania on October 3, 2010* -
## statistics

The test scores for 9 students on the Unit 1 test were 35, 25, 50, 95, 80, 60, 45, 100, and 90. What is the value of the second quartile for this data set?

*asked by josh on February 26, 2011* -
## math !

using the following set of data, calculate the lower quartile, the upper quartile, and the interquartile range.20, 22, 25, 28, 29, 30, 32, 33, 34 ? NEED HELP !

*asked by JacqueesWifee on April 11, 2016* -
## Statistics

Hi, Are market returns (with numbers such as -3.45, 4, 2.456 representing the "returns") ordinal or nominal data? Thanks!

*asked by Candice on April 18, 2014* -
## Math

Remove one value from the following data to make each statement true. 32,45,82,99,15,102,75,15,15,75,2,75 a)The mean is 56.09 How do you know the removed value makes it true?

*asked by Sara on June 20, 2014* -
## Statistics

How is finding the standard deviation a measurement of a data\'s center? my teacher said it measured the center...

*asked by Statistics on August 28, 2009* -
## Statistics

Is is possible for the regression equation to have none of the actual (observed) data points located on the regression line?

*asked by Julia on December 2, 2012* -
## math

if a score is change, will the mean be affected? if a score is added in the data set, will the median be changed?

*asked by aristo on November 19, 2018* -
## Statistics

The least absolute deviation line equation for the data in the table is m = 0.1 x + 2.9 X 1,6,0.5,4,7.5,12,10,11 y 3,2.5,8,1,1.5,9,13,4 What is the sum of the absolute deviations?

*asked by BoB on December 12, 2018* -
## visual basic 6

1)with the aid of illustrative examples, differentiate between Input statement and Read and Data statement.

*asked by Thanking you... on June 29, 2009* -
## stat

*asked by jackie on February 6, 2011* -
## History

Which statement best explains the reason the Americans were never able to capture St. Augustine in Florida. A) A lack of cooperation among commanders led to poor execution.*** B) Poor planning and incompetent leaders led to disastrous outcomes. C) The

*asked by Sam on October 31, 2016* -
## ENGLISH

Which of these events in the plot of Silas Marner best represents the complication in the novel? a.Silas tells Molly he has learned to trust again. b.Godfrey learns that Molly is dead. c.All of Silas's gold is stolen following fifteen years of self-imposed

*asked by ADAM CORN on January 13, 2011* -
## Statistics

Records show that 29% of all payments to a mail-order company are submitted aftr the due date. Suppose 50 payments are submitted this week. Let r be a random variable that represents the number of payments that are late. Use the normal approximanition to

*asked by Regina Turner on December 5, 2012* -
## English

As it is too noisy, I can't hear you. ================== In this sentence, what does 'it' refer to?•English - Ms. Sue, Friday, December 25, 2015 at 5:45pm In this kind of construction, "it" represents an understood concept. Wherever the speaker may be is

*asked by rfvv on December 25, 2015* -
## math

A coordinate grid is used on the plan of a new housing development. fibre optic cable is being laid with a micro-tunnelling machine. The cable will link points with coordinates A(-18,12), B(-8,1), C(3,4)and D(15,7)in a run beginning at A and ending at D .

*asked by Ted on October 20, 2010* -
## matrix, linear transformations

Morning, Bit confused: I have been given the following: g(x,y)=(4x,6y) h(x,y)=(x+2y,y) k(x,y)=(y,x) and ive got the following matrix for each of them: g={{4,0},{0,6}} h={{1,2},{0,1}} k={{0,1},{1,0}} So ive been asked to prove the linear transformation

*asked by Anon on February 25, 2017* -
## physics

Two gerbils run in place with a linear speed of 0.60m/s on an exercise wheel that is shaped like a hoop.Find the angular momentum of the system if each gerbil has a mass of 0.22kg and the exercise wheel has a radius of 8.5 cm and a mass of 5.0 g.

*asked by Anonymous on December 1, 2010* -
## physics

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

*asked by maria on October 24, 2011* -
## math(trig)

1) What's the linear velocity of a point on the tip of a 6-ft propeller turning at 1200 revolutions per min? 2) A gear is driven by a chain that travels 90m/min. Find the radius of the gear if it makes 50 revolutions per minute.

*asked by confused on December 6, 2010* -
## Intro to linear algebra

For the matrix: [[1,4,2],[2,5,1],[3,6,0]] (This is 3X3) .. find out whether the columns are linearly independent. Is the 3rd column a linear combination of two other columns? In both cases find the coefficients. Please show step-by-step and explain in

*asked by Anonymous on October 11, 2017* -
## physics

The drawing shows two transverse waves traveling on two strings. The linear density of each string is 0.0483 kg/m, and the tension is provided by a 15.0-N block that is hanging from the string. Determine the speed of the wave in part (a) and part (b) of

*asked by Anonymous on October 31, 2014* -
## algebra 1

In 1975, when the United Nations was formed, there were 51 member nations. In 1987, there were 159 member nations. Write an equation that gives the number of nations in the UN, y, in terms of the year, t. Let t=0 correspond to 1945 and assume that

*asked by layla on October 24, 2012* -
## physics

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

*asked by maria on October 25, 2011* -
## physics please helpp

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

*asked by maria on October 24, 2011* -
## math

you purchase an suv for $26,000. A year later the car is worth only $24,800. If the value of the car continues to depreciate at that rate, a. find the linear equation that determines the value of the car based on the number of years you own it. b. when

*asked by jen on March 7, 2010* -
## physics

*asked by maria on October 24, 2011* -
## chemistry

The Rydberg equation (1/lambda=R/ni^2–R/nf^2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and y-intercept(b)? by GC 1/lambda = R/ni^2–R/nf^2 y = mx + b (standard form) of a linear equation) x = (y-b)/m Let,

*asked by bubble on January 15, 2010* -
## Physics2

"The heat engine uses 1.00x10^-2 mol of a diatomic gas as the working substance. Determine the temperatures at the 3 points." From 1-2, it's an adiabatic process and the constants are (P)(V^(7/5)) or (T)(V^(2/5)). From 2-3, it's an isobaric process with

*asked by Summer on February 21, 2013* -
## physics

is the height of a ball be thrown directly related to the initial velocity? if i were to graph initial velocity as y and height as x,would it be a linear trend?

*asked by Anthony on January 29, 2017* -
## math

A fabric manufacturing company has a fabric that is 36 inches wide. If the company needs 75 sq. yards, how many linear feet does the manufacturing team need to produce? NEED HELP!

*asked by Jalyn on November 19, 2014* -
## Physics

The temperature of a 1 m long aluminum rod is 20° C. If the temperature is increased to 70° C, what is the length of the rod? The coefficient of linear expansion for aluminum is 16 * 10^-6 /(degrees)C Please help I can not get this.

*asked by Anonymous on April 25, 2015* -
## algebra

The equation -5x-3y=2 is a linear equation in standard form. From this equation, answer the following:a. Find the y and x-intercepts b. Write this equation in slope-intercept form.

*asked by Keonn'a on September 16, 2018* -
## Algebra

Create an equation where the left side is a linear function and the right side is a square root function. Make it so that the equation has exactly two solutions.

*asked by Joe on January 2, 2017* -
## Supply/Math

The suppliers will supply 3,300 units if the price is $350.00 and 3,800 units if the price becomes $410.00. Then the linear supply equation is p = ? s + ? .

*asked by Melissa on January 30, 2011* -
## Geometry

∠ABC and ∠ABD are a linear pair. Prove that m∠ABC + m∠ABD = 180°. Write a paragraph proof...I don't know how to write this out

*asked by PLEASE HELP ME on September 30, 2017* -
## math

Find the median, the first quartile, the third quartile, the minimum, the maximum, and the rangeof the data; 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58

*asked by Victoria on May 20, 2008* -
## Math

I want to know that if we have a set of data and we have to conclude if it is Da Vinci Theorom how do we know if it is or not . what do we need to de in order to conclude thankyou

*asked by anna on November 30, 2007* -
## statistics

find the sample variance s2 for the following sample data. Round to the nearest hundred x: 23 17 12 35 29

*asked by Anonymous on July 22, 2010* -
## Statistics

Consider the following data set: 3, 4, 6, 7, 9, 9, 11. Identify a number you could add to the set to keep the mean larger than the median.

*asked by Amethyst on August 31, 2017* -
## biochemistry

2. Given the following data, calculate the Keq for the denaturation reaction of β-lactoglobin at 25 oC. Δ Ho = -88 kJ/mol, Δ So = 0.3 kJ/mol

*asked by Blake on February 6, 2013* -
## statistics

when the mean is slightly larger than the median does that mean the data is slightly skewed to the left, the right, or neihter?

*asked by statistics on July 17, 2009* -
## Science

The pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data: C8H10N4O2(aq)+H2O(l) ⇌ C8H10N4O2H+(aq)+OH−(aq)

*asked by Anonymous on March 11, 2016* -
## Math

what number could be included in the data set 9,12,17,15,13, so that the MEDIAN of the numbers in the set result in 14?

*asked by die on August 17, 2018* -
## Calculus

I am working on a regression model , if my residuals don't exceed 0.6 does that mean this model is OK for my data?,

*asked by Michelle♡♡ on November 26, 2016* -
## Chemistry

From the following data, calculate ΔH° for the reaction O3(g) +NO(g)----->O2(g)+NO2 (g) Compound ΔH°f (kJ/mol) O3 142.7 NO 90.3 O2 0 NO2 33.2

*asked by Onye on March 4, 2018* -
## algebra

Describe the measures of central tendency and measures of dispersion for the following data set: A = {8,1,2,9,3,2,8,1,2}

*asked by Sharon on May 6, 2008*

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