Tuesday

October 25, 2016
Total # Posts: 802

**Math**

Dollhouse and the furnishing are built to a scale of exactly 1 in. to 1 ft, what is the linear scaling factor?

*November 16, 2013*

**Math**

Growth rate of odd size object: Start: 1.5" w by 1.5" l by .25" h End: 3.25" w by 3.50" l by .25" h Did this object increase by 600%? Some people tell me approx. 500% and 405% Which is it and how do you do the math for the correct answer?

*November 15, 2013*

**math**

Please I need help: I need to figure out the procedure to this question: Growth rate of odd size object: Start: 1.5" w by 1.5" l by .25" h End: 3.25" w by 3.50" l by .25" h Did this object increase by 600%? How do I figure this out? Thank you very...

*November 14, 2013*

**Math**

Steve, Sam or Salah, How do you come up with your answers of 500%, 505 405% Please and Thank you, Tracy

*November 14, 2013*

**Math**

Growth rate of odd size object: Start: 1.5" w by 1.5" l by .25" h End: 3.25" w by 3.50" l by .25" h Did this object increase by 600%?

*November 14, 2013*

**Algebra (Pythagorean Theorem)**

Ahmed has half of a treasure map. which indicates that the treasure is buried in the desert 2x + 6 paces from castle rock. Vanessa has the other half of the map. Her half indicates that to find the treasure one must get to castle rock walk x paces to the north and then walk 2x...

*November 4, 2013*

**Algebra**

Thank you

*November 4, 2013*

**Algebra**

I was not asking if it was a Pythagorean Theorem? This is the equation that I have to solve

*November 4, 2013*

**Algebra**

This is a Pythagorean Theorem x^2 + (2x + 4)^2 = (2x + 6)^2

*November 4, 2013*

**Algebra**

thank you

*November 1, 2013*

**Algebra**

Help I'm stuck I need to factor a trinomial expression using the AC method 15x^2 + 31x + 2

*November 1, 2013*

**Algebra**

I need to know how to factor these in A-C method form 2a^2+1+3a 9w-w^3

*October 31, 2013*

**Algebra (factoring Polynomials)**

I need to know how to factor these in A-C method form 2a^2+1+3a 9w-w^3

*October 31, 2013*

**Algebra (factoring Polynomials)**

Thank you. Can you please do this in the ac method form?

*October 31, 2013*

**Algebra (factoring Polynomials)**

9w-w^3 2a^2+1+3a

*October 31, 2013*

**math**

if Ted's front porch is 9 and 3/4 inches by 4 feet.How long is his porch?

*October 29, 2013*

**Algebra**

(-9x^3 + 3x^2 -15x)divided by (-3x) Find the quotient

*October 28, 2013*

**Polynomials**

In order for me to understand I need step by step explanations.

*October 28, 2013*

**Polynomials**

still confused

*October 28, 2013*

**Polynomials**

P dollars is invested at annual interest rate r for 1year If the interest is compounded semiannually then the polynomial P(1+r/2)^2 represents the value of the investment after 1 year. rewrite the expressions without parentheses evaluate the polynomial if P=5670 and r=3.5%

*October 28, 2013*

**algebra**

find the quotient (-9x^2 + 3x^2- 15x) - (-3x)

*October 28, 2013*

**Algebra**

P dollars is invested at annual interest rate r for 1year If the interest is compounded semiannually then the polynomial P(1+r/2)^2 represents the value of the investment after 1 year. rewrite the expressions without parentheses evaluate the polynomial if P=5670 and r=3.5%

*October 28, 2013*

**Algebra**

I have two questions dealing with financial polynomials. $6780 compounding 2.5%interest once a year yields? in interest 5760 compounding 3.5 interest once a year yields? in interest

*October 28, 2013*

**Algebra**

Ozark furniture company can obtain at most 3000 board feet of maple lumber for making its classic and modern maple rocking chairs. A classic maple rocker requires 15 board feet of maple and a modern rocker requires 12 board feet of maple. write an inequality that limits the ...

*October 21, 2013*

**Algebra**

a line passes through the point (4,1) and has a slope -4 write an equation for this line

*October 20, 2013*

**Algebra**

graph the line with slope -2/3 passing through (-5, -5)

*October 20, 2013*

**Algebra**

a line passes through the point (-7,-4) and has a slope of 3 write an equation for this line

*October 20, 2013*

**Algebra**

how do you find -4/5 on a graph?

*October 20, 2013*

**Algebra**

4x-3y=-6 finding the x and y intercept line based on a equation in standard form

*October 20, 2013*

**Algebra parallel and perpendicular**

Thank you. can you explain the steps that you used.

*October 17, 2013*

**Algebra parallel and perpendicular**

y=3/4x-1 write equation for a line parallel to the given line passing through (4,0)

*October 17, 2013*

**Algebra**

8(v-8)-2v=-28

*October 12, 2013*

**Algebra**

0.05(0.3m+35n)-0.8(0.09n-22m)

*October 5, 2013*

**Algebra**

It was not -2w it was 2w

*October 5, 2013*

**Algebra**

2w-3+3(w-4)-5(w-6)

*October 5, 2013*

**Algebra**

-2w-3+3(w-4)-5(w-6)

*October 5, 2013*

**algebra 1**

The sum of four consecutive integers is decreased by 30, the result is the fourth integer. Find the four integers.

*October 1, 2013*

**english**

what is the complete subject in romans held this festival on february 15

*September 25, 2013*

**Phyics**

A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 75.5 m/s2 for 1.58 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude (above the ground) ...

*September 25, 2013*

**Phyics**

A hot-air balloon is rising upward with a constant speed of 4.00 m/s. When the balloon is 4.77 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

*September 25, 2013*

**Accounting**

You received an email from Carl the operations manager from the California Container division. They produce packaging for cell phones. Carl understands that his product is an important cash producer for the company. •The delivery price is based on long term contracts. &#...

*September 24, 2013*

**help with chem biochem **

You have a 1 ml solution containing 100 uM Ethanol, and 1 mM NAD+. You then add 1 mg of alcohol dehydrogenase. Assume all of the ethanol gets converted to acetaldehyde . a) What will the final concentration of NADH be in the solution?

*September 11, 2013*

**help with chem biochem**

Ethanol + NAD+ ----> acetaldehyde + NADH + H+

*September 11, 2013*

**help with chem biochem **

Ethanol + NAD+ acetaldehyde + NADH + H+ You have a 1 ml solution containing 100 uM Ethanol, and 1 mM NAD+. You then add 1 mg of alcohol dehydrogenase. Assume all of the ethanol gets converted to acetaldehyde. a) What will the final concentration of ...

*September 11, 2013*

**Math**

A 120m cable TV tower casts a 96m shadow. Find the height of a nearby telephone pole that cast a 16m shadow.

*August 27, 2013*

**Physics**

An olympic sprinter can run 100yd in 9.0s. At the same rate, how long would it take the sprinter to run 100m?

*July 9, 2013*

**Statistics**

They all was wrong on (B).

*June 29, 2013*

**Statistics**

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = 2.6+.1x (b) Find the ordinates y hat for the points on the line of best fit ...

*June 29, 2013*

**statistic check**

Sorry but that answer is wrong also..

*June 29, 2013*

**statistic check**

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.60 is what I got.

*June 29, 2013*

**statistics**

I think so

*June 29, 2013*

**statistics**

Sorry this is not right

*June 29, 2013*

**statistics**

I tried the F test calculator and that does not give me the answers that are needed. I have looked for one for critical region and have been unable to find one at this time.

*June 29, 2013*

**statistics**

The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at...

*June 29, 2013*

**math**

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.24 is what I got.

*June 29, 2013*

**math**

Consider the following ANOVA experiments. (Give your answers correct to two decimal places.) (a) Determine the critical region and critical value that are used in the classical approach for testing the null hypothesis Ho: ì1 = ì2 = ì3 = ì4 = ì...

*June 29, 2013*

**math check**

This will most likely be my last question that I have to post, I wanted to think everyone that has helped me and my friends when we had questions. This is a great site that helps when in need. Again Thank you all!!!!

*June 28, 2013*

**math check**

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.6 .

*June 28, 2013*

**math check**

Consider the following ANOVA experiments. (Give your answers correct to two decimal places.) (a) Determine the critical region and critical value that are used in the classical approach for testing the null hypothesis Ho: ì1 = ì2 = ì3 = ì4, with n...

*June 28, 2013*

**Math**

So on B I got the answers, 0.5, 1.5, 2.5,3.5,4.5 And everything that I have tried on C is coming up wrong????

*June 28, 2013*

**Math**

I got the first part the answers were 2.6 and .1x, I can not figure out the rest of it B & C.

*June 28, 2013*

**Math**

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = 2.6,.1x Correct: Your answer is correct. . + Correct: Your answer is correct...

*June 28, 2013*

**Math**

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = + x (ii) Graph this equation on a scatter diagram. (Do this on paper. Your ...

*June 28, 2013*

**Math**

In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or transfer because it would mean less time with your family?" A total of 200 men and 200 women were asked this question. "Yes" was the ...

*June 28, 2013*

**Math**

Consider the following ANOVA experiments. (Give your answers correct to two decimal places.) (a) Determine the critical region and critical value that are used in the classical approach for testing the null hypothesis Ho: ì1 = ì2 = ì3 = ì4 = ì...

*June 27, 2013*

**Math**

Sorry the r value..

*June 27, 2013*

**Math**

Population and crime rate?

*June 27, 2013*

**Math**

The population (in millions) and the violent crime rate (per 1000) were recorded for 10 metropolitan areas. The data are shown in the following table. Do these data provide evidence to reject the null hypothesis that ƒÏ = 0 in favor of ƒÏ ‚ 0 at...

*June 27, 2013*

**math**

Sorry it keeps going together Samples are G & H N =386, 414 X =327, 321

*June 27, 2013*

**math**

Sample n x G 386 327 H 414 321

*June 27, 2013*

**math**

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321 .

*June 27, 2013*

**Math**

Find the value of t for the difference between two means based on an assumption of normality and this information about two samples. (Use sample 1 - sample 2. Give your answer correct to two decimal places.) Sample Number Mean Std. Dev. 1 25 38.6 13.7 2 29 42.1 10.2 .

*June 27, 2013*

**Math**

I came up with -114.80229

*June 26, 2013*

**Math**

Find the value of t for the difference between two means based on an assumption of normality and this information about two samples. (Use sample 1 - sample 2. Give your answer correct to two decimal places.) Sample Number Mean Std. Dev. 1 25 38.6 13.7 2 29 42.1 10.2

*June 26, 2013*

**Math**

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321

*June 26, 2013*

**Statistics Help**

Consider the following ANOVA experiments. (Give your answers correct to two decimal places.) (b) Determine the critical region and critical value that are used in the classical approach for testing the null hypothesis Ho: ì1 = ì2 = ì3 = ì4 = ì...

*June 26, 2013*

**Statistic help**

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = + x (ii) Graph this equation on a scatter diagram. (Do this on paper. Your ...

*June 26, 2013*

**math**

Thanks, but those are wrong also.

*June 26, 2013*

**math**

Those was not the right answers, the ones that I had got previous was also close to them.

*June 26, 2013*

**math**

Find the 95% confidence interval for the difference between two means based on this information about two samples. Assume independent samples from normal populations. (Use conservative degrees of freedom.) (Give your answers correct to two decimal places.) Sample Number Mean ...

*June 26, 2013*

**math check**

Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.24 is what I got .

*June 26, 2013*

**Math check**

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321 2.71 was my answer. .

*June 26, 2013*

**math help**

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = + x (ii) Graph this equation on a scatter diagram. (Do this on paper. Your ...

*June 26, 2013*

**Math question**

How do you find the p-value, on a problem like below. The corrosive effects of various soils on coated and uncoated steel pipe was tested by using a dependent sampling plan. The data collected are summarized below, where d is the amount of corrosion on the coated portion ...

*June 25, 2013*

**Statistics check**

what do you mean with stat oldest L1, etc. Have a question I have a TI-83 Plus calculator, is there a way of putting in the information to get the p value or do you still have to look at a chart. When I read the instructions on it, it mentioned finding the z value to get to ...

*June 25, 2013*

**statistics**

Consider the following ANOVA experiments. (Give your answers correct to two decimal places.) (a) Determine the critical region and critical value that are used in the classical approach for testing the null hypothesis Ho: ì1 = ì2 = ì3 = ì4 = ì...

*June 25, 2013*

**Statistics**

Find the value of z that would be used to test the difference between the proportions, given the following. (Use G - H. Give your answer correct to two decimal places.) Sample n x G 386 327 H 414 321

*June 25, 2013*

**math**

But how do you get the p-value, I have worked it out by hand and also put into calculator and it comes up wrong. 0.0017 was the last answer I got. and 0.9991 before that. I have several questions like this asking for p-value so if you could work one out and I could use as an ...

*June 25, 2013*

**statistics help**

Complete the hypothesis test with alternative hypothesis ƒÊd ‚ 0 based on the paired data that follows and d = O - Y. Use ƒ¿ = 0.01. Assume normality. Oldest 188 174 192 196 65 Youngest 186 168 199 199 69 (a) Find t. (Give your answer correct ...

*June 24, 2013*

**statistics**

I have worked it out and found the t value as 3.80 and that came out right but the p value is not coming out right.

*June 24, 2013*

**statistics check**

Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (b) Calculate the covariance. (Give your answer correct to two decimal places.) 5.35 was my answer . (c) Calculate sx and sy. (Give your answers correct to three ...

*June 23, 2013*

**statistics**

So this is what I came up with on (b) 6.93 and (c) 6.48 and those were wrong. I think I am missing them at the beginning when k-1=?-1 and n-k=?-?. Which graph or table are you getting these from? I figure out the other one to come up with the answers but I must of missed the ...

*June 23, 2013*

**statistics**

this is the answers that I got and they were wrong. f>equal to 3.20 for a part and b part I got f>equal to 3.41 But they both are wrong do not thing I am sitting them up right, any help?

*June 23, 2013*

**statistics **

Consider the following ANOVA experiments. (Give your answers correct to two decimal places.) (a) Determine the critical region and critical value that are used in the classical approach for testing the null hypothesis Ho: ì1 = ì2 = ì3 = ì4, with n...

*June 23, 2013*

**statistics**

Consider the following table and use the formulas that are given for computing the correlation coefficient. (Give your answer correct to two decimal places.) x 1 1 0 0 0 y 7 3 5 6 6 r = n xy − x y n x2 − x 2 n y2 − y 2 (1) r = SS(xy) SS(x) · SS(y) (2) ...

*June 23, 2013*

**statistics**

Consider the following set of data. (18, 12), (29, 48), (65, 29), (82, 24), (115, 56), (124, 13) (a) Calculate the covariance of the set of data. (Give your answer correct to two decimal places.) . (b) Calculate the standard deviation of the six x-values and the standard ...

*June 23, 2013*

**statistics**

this is what I done and it was wrong mean of x = 2.6 sd = 2.01108, y mean 3.9, sd 2.42441; then I added the sd 4.43549/(2.011080)(2.42441) = 5.3471 c. I just added all the x together = 26 sy = 39 The formula for 13.2 is r=covar(xto the 1power and y to 1power)= covar (x,y)/Sx X...

*June 23, 2013*

**statistics**

Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (b) Calculate the covariance. (Give your answer correct to two decimal places.) (c) Calculate sx and sy. (Give your answers correct to three decimal places.) sx = sy...

*June 23, 2013*

**scientific notation am i doing it right?**

8.34 times 10^4 in standard notation

*May 25, 2013*

**log equation**

2logt + 1/4[logt + 3logp]

*May 16, 2013*