Tuesday

October 21, 2014

October 21, 2014

Total # Posts: 18,492

**algebra**

The memory used for a photo is variable. Also you don't indicate the total memory.
*September 8, 2014*

**Algebra**

Combine common terms. 2x^2 + 5x = 0 Factor. x(x+5) = 0 You should be able to take it from here. Check by inserting values found into the original equation.
*September 8, 2014*

**Biology please help!**

CO2 in the blood is the controlling factor for breathing rate.
*September 8, 2014*

**Biology**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See your later post.
*September 8, 2014*

**math**

5 * 10^-5 liter
*September 8, 2014*

**math**

Assuming the $15 is a one-time charge for the wet suit… 25h = 20h + 15 Solve for h.
*September 8, 2014*

**Math**

It depends on the distance. For a long distance, like Greyhound, the number of seats. For a shorter distance, like a intracity bus, the number of seats plus the room for standing.
*September 8, 2014*

**please check see if im correct**

Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. If you are using level of significance of P < .05, Z > 1.96.
*September 8, 2014*

**Biology - very urgent**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. See last post.
*September 8, 2014*

**Math**

What second column?
*September 8, 2014*

**Biology**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
*September 8, 2014*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. 81/(729+81) * 350/(350+350) = ?
*September 8, 2014*

**geometry**

If they are labeled identically, wouldn't they be measuring the same thing? I would assume that they are not perpendicular, but identical. However, assuming a labeling typo, I would agree.
*September 8, 2014*

**SS**

Yes, but you might want to express it in distance units rather than time.
*September 8, 2014*

**Biology**

Welcome
*September 8, 2014*

**Biology**

Since you inhale oxygen and exhale carbon dioxide, I would agree with you.
*September 8, 2014*

**math**

11(1 - .03) = ?
*September 8, 2014*

**Science**

Doesn't that depend on your definition of "more"? In the desert, it probably would. However, once the plant becomes saturated, I don't think so.
*September 8, 2014*

**Speech**

Welcome
*September 8, 2014*

**Speech**

Title: Right to Life If your mothers were pro-abortion, how many of you would not be here? Even if you don't use these, they might help you to think of your own.
*September 8, 2014*

**Speech**

What is the purpose of your speech? Are you just providing information, or are you advocating a pro or con position?
*September 8, 2014*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1) 7.34 * 10^-8 2) I assume the dashes in front of your choices are not meant to be negative signs. 10^-3 = .001 10^-4 = .0001 10^-5 = .00001 That should help you to ...
*September 8, 2014*

**speech**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you. My response to your later post still applies.
*September 8, 2014*

**math**

.6 * $18 = ? (Where is this clothing store? I would love to go to that sale.)
*September 8, 2014*

**Statistics**

68% is between Z of 1 and -1. Insert values of Z and solve for the scores. Z = (score-mean)/SD
*September 8, 2014*

**statistics**

Do you have a random number table? Start at any point and use applicable three digit numbers.
*September 8, 2014*

**math**

We would have to know the decimal first. For example, .5 = "point five" or "one half"
*September 7, 2014*

**pseudocode**

We do not do your homework for you. Although it might take more effort to do the work on your own, you will profit more from your effort. We will be happy to evaluate your work though.
*September 7, 2014*

**biology**

You would want to say that there is no control group — one which receives neither extra water nor extra fertilizer. You can have more than one independent variable. An independent variable is the potential stimulus or cause, usually directly manipulated by the ...
*September 7, 2014*

**Math**

1 Divide 1,000,000 by the various other numbers: 100, 100,000, 10,000 and 1000. 247 rounds to nearest 10 = 250. Double that.
*September 7, 2014*

**science**

Since a meter (m) = 39.37 inches, at 28 m, you must have a gigantic head! Typo? 1000 mm = 1m 100 cm = 1 m 1000m = 1 Km
*September 7, 2014*

**algebra**

56 + .16x > 112 + .08x Solve for x.
*September 6, 2014*

**Math**

0º C = 32º F
*September 6, 2014*

**statistics**

Either-or probabilities are found by adding the individual probabilities. Out of 52-card deck, there are four 4s, four 5s and 13 spades. However, 2 of the spades are a 4 and a 5. Can you work it from there?
*September 6, 2014*

**statistics**

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. I'll let you provide the examples.
*September 6, 2014*

**statistics**

(43 -25)/43 = ?
*September 6, 2014*

**Math**

What is you question?
*September 6, 2014*

**math**

48 + x = 3(10 + x)
*September 6, 2014*

**Math**

Mean = ∑x/n
*September 6, 2014*

**science**

What is your reaction time?
*September 6, 2014*

**Math**

How many balls does she have originally?
*September 6, 2014*

**visual arts**

Since this is not my area of expertise, I searched Google under the key words "7 principles of design" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=7+principles+of+design&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find ...
*September 6, 2014*

**Chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*September 6, 2014*

**Stats**

Z = (mean1 - mean2)/standard error (SE) of difference between means SEdiff = √(SEmean1^2 + SEmean2^2) SEm = SD/√n If only one SD is provided, you can use just that to determine SEdiff. Find table in the back of your statistics text labeled something like "...
*September 6, 2014*

**Business Math**

x - .3x = $72.09
*September 5, 2014*

**statistics**

In a normal distribution, mean, mode and median have same value. Median is 50th percentile, so what is the Z score at the mean?
*September 5, 2014*

**biology**

Since this is not my area of expertise, I searched Google under the key words "anthocyanins light sugar" to get these possible sources https://www.google.com/search?client=safari&rls=en&q=anthocyanins+light+sugar&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can ...
*September 5, 2014*

**spanish**

If you are looking for the English equivalent, high school.
*September 4, 2014*

**statistics**

Z = (score-mean)/SEm SEm = SD/√n Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of the Z score. Probability > .50.
*September 4, 2014*

**Chemistry needs help**

Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
*September 3, 2014*

**History**

Pair trust/mistrust bars with different colors. Do this for each area.
*September 3, 2014*

**math**

Looks like Mojave was much less than the others. Do you want to make a pie chart or do X^2 (Chi square) analysis?
*September 3, 2014*

**math**

What table? August?
*September 3, 2014*

**math**

8,924,001
*September 2, 2014*

**math**

Multiply top equation by 2. 2x + 4y = 14 3x - 4y = 6 Add the two equations. 5x = 20 Solve for x, then y.
*September 2, 2014*

**math for praaaaaaaajiiii**

Unsure of what you are asking. √39 = 6.245
*September 2, 2014*

**math**

What numbers?
*September 2, 2014*

**math**

It would help if you proofread your questions before you posted them. I assume you mean 4.5% commission. 148,500 * .045 = ?
*September 2, 2014*

**math**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
*September 2, 2014*

**math**

A. $25.98 + 14.99 + 2.46 = ? B. $50 - ? = ??
*September 2, 2014*

**Spanish**

I prefer "¿Qué pasa?", but I don't know if that would be formal. You might try "¿Cómo lo pasa Vd?"
*September 1, 2014*

**math**

L = 3W - 10 LW = (3W-10)W = 3W^2 - 10W = 77 3W^2 - 10W - 77 = 0 Solve quadratic equation for W, then L.
*September 1, 2014*

**math**

(68/12)/8 = T/21 = 5.67/8 Solve for T in feet.
*September 1, 2014*

**Psychology (Jill)**

First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked. Second, you are comparing naturalistic observation and being participant ...
*September 1, 2014*

**English**

2. in the hallway 4. Trash on the flower pots? 5. Won't the team win first place? 7. What is a magic block? With all the cleaning, are you trying for a job as janitor?
*September 1, 2014*

**statistics**

Work it from the other end, so you are using fewer values. You are less likely to make mistakes. A. 100(1.00 - .019) = ? B. 100(1.00 - .193) = ?
*August 30, 2014*

**Math**

(55min. * 7 classes * 5 days)/(60 min./hour) = ?
*August 29, 2014*

**English**

1. The visit. Elderly can be used to modify both.
*August 29, 2014*

**English**

A postcard is an open-faced correspondence, while a letter can be much longer and is typically enclosed in an envelope, so #2 does not mean #1. Delete "take" in first sentence. It would be more specific to indicate the topic of your speech and the type of conference...
*August 29, 2014*

**Math**

Answer what? Need to include original question.
*August 29, 2014*

**math**

6 is one more than 5, and they sum to 11.
*August 29, 2014*

**science**

It would help if you proofread your questions before you posted them. What is "ch3cn"?
*August 28, 2014*

**math**

14.75/29.50 = .5 Multiply by 100 for the percentage.
*August 28, 2014*

**Science**

Sorry, I misread. It said incorrectly. Agree.
*August 28, 2014*

**Science**

Disagree.
*August 28, 2014*

**science**

Volcanic eruption?
*August 28, 2014*

**Science**

Again I goofed. B is right.
*August 28, 2014*

**Science**

Disagree, beaker does not record data
*August 28, 2014*

**Science**

Agree with A. What does that have to do with math?
*August 28, 2014*

**Business statistics**

Assuming a normal distribution, it is symmetrical. So, if one half has mean of 8 + 2, the other half has mean of 8 - 2.
*August 28, 2014*

**Business statistics**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
*August 28, 2014*

**Biology**

A, C is dependent variable
*August 27, 2014*

**Math**

477/10 = ? (round to whole number)
*August 27, 2014*

**Biology**

No, you are trying to see if changes in the independent variable cause changes in the dependent variable. If other variables are not held constant, they might be factors in causing dependent variable changes rather than or in addition to the independent variable.
*August 27, 2014*

**7th grade Science**

Manipulate/independent variable would be the number of paper clips, which determine the weight of the plane. Responding/dependent variable is the distance flown. Starting line and the same strength/style of the throw would be controls.
*August 27, 2014*

**algebra**

What is your question? Guessing what you want, s = 1 1/5c = 1.2c
*August 27, 2014*

**Alegbra**

Isn't it influenced by who gets the remaining pizza?
*August 27, 2014*

**algebra**

Find the mean first = sum of scores/number of scores Subtract each of the scores from the mean and square each difference. Find the sum of these squares. Divide that by the number of scores to get variance. Standard deviation = square root of variance I'll let you do the ...
*August 27, 2014*

**Math for college readiness**

4x^2v^4
*August 27, 2014*

**math**

When multiplying, add exponents. y^-6 = 1/y^6
*August 27, 2014*

**algebra**

If the two sides are equal, then: 3x-1 = 2x+2 Solve for x and then add the three sides.
*August 27, 2014*

**math**

Are they saying that you have divided by 1000? 913,256/1000 = 913.256
*August 26, 2014*

**American Government**

I would say B.
*August 25, 2014*

**statistics**

With your limited data, I would say .2 * 50 = 10
*August 25, 2014*

**algebra**

What first equation? -10(-10x-10y) = 100x + 100y
*August 25, 2014*

**Math**

In relation to Hiba? 6/5 and 3/2 respectively.
*August 25, 2014*

**biology**

https://www.google.com/search?client=safari&rls=en&q=anonyms&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*August 25, 2014*

**math**

If the two digits are in their correct position, then the remaining two would be 1/10 * 1/10 = 1/100
*August 25, 2014*

**science**

Since this is not my area of expertise, I searched Google under the key words "Mirrors do not refract" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Mirrors+do+not+refract&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the future, you can find ...
*August 25, 2014*

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