Friday

July 31, 2015

July 31, 2015

Total # Posts: 20,062

**Math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. 1/25 = 5^-2 When multiplying a particular number, you add the exponents.
*November 30, 2014*

**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. See previous post.
*November 30, 2014*

**statistics**

a) Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score. b) Z = (score-mean)/SEm SEm = SD/√n Use same table.
*November 30, 2014*

**math**

11 factorial = 11! = 11 * 10 * 9 … * 3 * 2 * 1 Same process for other factorials.
*November 30, 2014*

**math**

27 * 33 * .4 = ?
*November 30, 2014*

**statistics (GWARD4)**

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. Z = (score-mean)/SD Find table in the back of your statistics text labeled...
*November 30, 2014*

**statistics**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability for ± Z score. Multiply by 100.
*November 30, 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. Multiply by 100.
*November 30, 2014*

**Algebra**

If I knew what a "sis" was, I might be able to answer your question. Probability of tails = .5 If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events. What is the probability...
*November 30, 2014*

**Statistics**

a. .20 b. Either-or probabilities are found by adding the individual probabilities. c. 1 - .3 - .1 - .15 - .2 = ?
*November 29, 2014*

**Math**

It must be some multiple of 5 between 20 and 30. What could that be?
*November 29, 2014*

**ANATOMY**

You could read the text and make your own power point notes, so you could sell them to students taking the course the next semester.
*November 29, 2014*

**Math 032**

(7*12 + 9)/22.3 = ?
*November 29, 2014*

**math**

What number divides evenly into both 84 and 96?
*November 29, 2014*

**Math**

With a ratio of 5:4, the total needs to be some multiple of 9. Which is not a multiple of 9?
*November 29, 2014*

**Math**

5x + 4x = 27, 54, 60, 72 Solve for x for each number. Which every does not solve as a whole number is the answer.
*November 29, 2014*

**SIXTH GRADE MATH**

For a ratio of 2:3, the total must be some multiple of 5. 2x + 3x = 5x
*November 29, 2014*

**SIXTH GRADE MATH**

2x + 3x = 7, 14, 25, 26 With which one is x a whole number?
*November 29, 2014*

**Plz help with 8th grade math**

4/5 = x/56 To find x, multiply both sides by 56, then divide by 5.
*November 28, 2014*

**biology**

pseudopods
*November 28, 2014*

**8th grade math question..**

2.5 dozen = 28 .25/28 = x/90 To find x, multiply both sides by 90 and then divide by 28.
*November 27, 2014*

**Biology**

Use a Punnett square. Dad is bb and mom is BB. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*November 26, 2014*

**science**

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

**Math**

80 + 6x = 145 - 7x Solve for x.
*November 25, 2014*

**SCIENCE BUT I REALLY NEED HELP**

Chromosomes mate, reproduce
*November 25, 2014*

**Math Help! ASAP!**

It needs to have the numbers 1 and 3.
*November 25, 2014*

**math**

Multiply the numbers and add the exponents, then simplify.
*November 25, 2014*

**statistics**

Ho: mean = 2 Ha: mean < 2 Once you get UTeM data, insert. 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 ...
*November 25, 2014*

**Neuroscience**

3. In future posts, indicate the answers you think are correct.
*November 25, 2014*

**Neuroscience**

3.
*November 25, 2014*

**Neuroscience**

1.
*November 25, 2014*

**Biology (?)**

What three organs?
*November 25, 2014*

**Astronomy**

"Twinkle, twinkle little star," but that is unlikely with planets. Also planets rotate in contrast to stars.
*November 24, 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.
*November 24, 2014*

**statistics**

You cannot copy and paste here.
*November 24, 2014*

**Health And Physical Ed**

I would say: false Peristalsis kidneys fiber
*November 23, 2014*

**Science PLEASE HELP**

Since this is not my area of expertise, I searched Google under the key words "Exothermic Endothermic reactions" to get these possible sources: https://www.google.com/search?client=safari&rls=en&q=Exothermic+Endothermic+reactions&ie=UTF-8&oe=UTF-8&gws_rd=ssl In the ...
*November 23, 2014*

**Science**

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.
*November 23, 2014*

**Stats**

What is your question? (175-14)/175 = proportion who do not think that dorm food is bad, which is not necessarily the same as saying it is good.
*November 23, 2014*

**statistics**

a) 120 * 60 = ? b) Standard Error of the mean (SEm) = SD√n
*November 23, 2014*

**Statistics**

I thought I answered this previously. a-c. Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability of each Z score. Multiply by 100. d, e. Find table in the back of...
*November 23, 2014*

**statistics**

Is anyone manipulating a variable? a. All students buying textbooks b. Textbooks purchased c. 100 students
*November 22, 2014*

**science**

Good for you!
*November 22, 2014*

**Stats**

It is a Type I error.
*November 22, 2014*

**statistics**

Z = (score-mean)/SD If the camera is set at 10% above speed limit = 88 km/h. Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability in the larger portion related to the Z score. ...
*November 22, 2014*

**Science**

What are you measuring?
*November 22, 2014*

**Science**

± .05 sounds plausible for .1 gram, but I don't know about the accuracy of an electronic balance.
*November 22, 2014*

**statistics**

The measure of variability for distribution of means = SEm = SD/√n Note that as n increases, SEm decreases. Larger samples (n) are less likely to be biased one way or the other.
*November 22, 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.
*November 22, 2014*

**Statistics (Janelle)**

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, we do not have the "data in question 25."
*November 21, 2014*

**Loneliness**

I compare direct interpersonal relationship and Facebook to the analogy of sugar vs. saccharine, respectively. Both can give us an immediate sweet taste, but only sugar leads to nourishment. With direct personal interaction, not only do you have verbal interaction, but also a ...
*November 21, 2014*

**science**

sensory neurons,interneurons in brain, motor neurons You have to sense something before you can respond to it.
*November 21, 2014*

**Living a Healthy Life**

C, hemoglobin is the oxygen-carrying portion of red blood cells.
*November 21, 2014*

**Living a Healthy Life**

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.
*November 21, 2014*

**statistics**

The larger the confidence interval, the greater your confidence level that it contains the true value.
*November 20, 2014*

**English**

Overall, how the delivery was characterized, and how he used the presentational aids, made me understand how to present a speech. A strength that the speaker had in his speech was the tone of voice and his gestures. An improvement that the speaker could make is not to be ...
*November 20, 2014*

**biology**

food?
*November 20, 2014*

**Pre Algebra**

An hour is 2 times 1/2 hour, therefore the speed in miles per hour = 4.4 * 2 = ? miles per hour
*November 20, 2014*

**Business statistics**

Accept Ho, when Ho is wrong.
*November 20, 2014*

**5 grade**

Think of common table salt (NaCl), which is made up of Na (Sodium) and Cl (chlorine). Look up the properties of the three.
*November 20, 2014*

**5th grade science**

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. Also, please use the same name on all your posts.
*November 20, 2014*

**Science help URGENT**

I would go with the first choice.
*November 20, 2014*

**Foundation of a Healthy Lifestyle**

Since she also changes the way she throws the ball, I would choose C.
*November 20, 2014*

**Stastic=tics**

Assuming an 8-hour day and each of the coders does 3/hour, currently: 2 * 3 * 8 = 48 In relation to the desired increase: 75 - 48 = 27
*November 20, 2014*

**Math**

4 * 5 = 20, add two zeros.
*November 20, 2014*

**Psychology Statistics**

Means not given.
*November 20, 2014*

**Parents, Finances, and School-Age Children**

Agree.
*November 20, 2014*

**no diagram**

You cannot copy and paste here.
*November 20, 2014*

**Algebra**

s = 4000 - n 3s + 5n = 15,000 Substitute 4000-n for s. 3(4000-n) + 5n = 15,000 Solve for n, then s.
*November 19, 2014*

**Math**

Multiply both sides by x. 1 = x^2, therefore x = 1 Cannot represent graphically on this post.
*November 19, 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.
*November 19, 2014*

**child developement**

Do you have children those ages to compare?
*November 19, 2014*

**math**

9 dozen costs 9 times as much as 1 dozen, unless there is a special sale for more than a dozen muffins.
*November 19, 2014*

**Math**

It fits for p = 0, but not p = 1.
*November 18, 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.
*November 18, 2014*

**math**

11 + .12m = 27 + .07m Solve for m.
*November 18, 2014*

**algebra**

30 + .19m ≤ 87 Solve for m.
*November 18, 2014*

**math**

Z = (score-mean)/SD Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.30) from the mean and its Z score. Enter ±Z and other data into the equation above to get the scores.
*November 18, 2014*

**math**

4n + 2.5n = 39 Solve for n.
*November 17, 2014*

**math please help**

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.
*November 17, 2014*

**Math**

24/3 = 8 per person
*November 17, 2014*

**math**

Cannot draw a Venn diagram on this post.
*November 17, 2014*

**math**

3750 - 3(225) - 2(1200) = ? gm
*November 17, 2014*

**Science**

nephron, ureter, urinary bladder, urethra
*November 17, 2014*

**Maths**

They all check, but it would be better (as least for me) to have a space between the equal sign and the negative sign, so they would be easier to see. Thanks.
*November 17, 2014*

**biology**

if both parents are normal, then they must be heterozygous for the cystic fibrosis allele. Use a Punnett Square. https://www.google.com/search?client=safari&rls=en&q=punnett+square&ie=UTF-8&oe=UTF-8&gws_rd=ssl
*November 17, 2014*

**statistics**

Cost will be (4*1500) + (12*120) = ?
*November 16, 2014*

**statistics**

100 + 3(50) = ?
*November 16, 2014*

**statistics (?)**

We do not have the senario above.
*November 16, 2014*

**Statistics**

15 minutes = 1/4 hour 1424/4 = ?
*November 16, 2014*

**statistics**

I am assuming that you have phrased the question correctly. If "you received 5,352 requests for records within a six-month period,… the request rate for the past six months" = 5,352 per 6 months.
*November 16, 2014*

**Science-DNA**

3' and 5' symbolize 3 feet and 5 feet.
*November 16, 2014*

**math/fractiom**

I assume that "1 2" is 1/2. 1 - 1/5 - 1/2 = 1 - 2/10 - 5/10 = ?
*November 16, 2014*

**Algebra**

25h = 20h + 15 Solve for h.
*November 15, 2014*

**math**

√2x - 3 = 5 Solve for x.
*November 15, 2014*

**statistics**

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score of < 3.
*November 14, 2014*

**math**

Online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown. Online "^" is used to indicate an exponent, e.g., x^2 = x squared. (3.25*10^-22)(7*10^3) = ? Multiply the regular numbers and add the exponents.
*November 12, 2014*

**Science**

We all have a color, in contrast to being transparent. To hide from predators, life forms must match their background.
*November 12, 2014*

**math**

For every unit you move to the right, that is one negative power of 10. .000027 = 27*10^-6 .000009 = 9*10^-6 (27*10^-6)/(9*10^-6) = ? Divide numbers normally and subtract powers.
*November 12, 2014*

**math**

calculations
*November 12, 2014*