Tuesday

September 23, 2014

September 23, 2014

Total # Posts: 70,958

**Math**

20. The time t required to drive a certain distance varies inversely with the speed, r. If it takes 2 hours to drive the distance at 67 miles per hour, how long will it take to drive the same distance at 55 miles per hour? a. about 1.64 hours b. about 134.00 hours c. about 2....
*May 23, 2014*

**Science**

Five groups of rats are fed identical diets except for the amount of vitamin A that they receive. Each group gets a different amount. After three weeks on the diet, the rats are weighed to see if the amount of vitamin A received has affected their weight. Independent Variable...
*May 23, 2014*

**Science**

No duh. I did. How's that supposed to help me? -.-
*May 23, 2014*

**Science**

What about that?
*May 23, 2014*

**Science**

12. Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he's going to create and experiment to find out if there is something better. a. type of tissue b. Justin c. amount of tissue d. mess of the snots the tissue can ...
*May 23, 2014*

**Math**

2. B
*May 23, 2014*

**Science**

5. Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he's going to create and experiment to find out if there is something better. What is 1 constant? a. type of tissue b. Justin c. amount of tissue d. mass of snot ...
*May 23, 2014*

**Science**

How can you measure the angle of incidence and refraction with a protractor? If not, what are some tools I can use which are found at home?
*May 23, 2014*

**2 questions?**

What is the surface area of a sphere with a radius of 4 meters rounded to the nearest square meter? 50 m2 101 m2 201 m2 *** 268 m2 What is the volume of a sphere with a radius of 4 meters rounded to the nearest square meter? 67 m3 201 m3 268 m3
*May 23, 2014*

**Bar Graphs**

Do the bars on bar graphs need to have spacing between them or can they be right next to each other?
*May 23, 2014*

**Algebra**

x(yp) =
*May 23, 2014*

**economics**

what are welfare payments or consumer subsidies
*May 23, 2014*

**Physic**

The position of a mass on a spring is given by x = (7.6 cm) cos [2 π t / (0.82s)]. Where is the mass at t = 3.1 s? (Answer: 1.45cm) Answer is provided above. Please show all work on how to get the answer. Thank you.
*May 23, 2014*

**Math**

In this activity, you will design and conduct a survey. Choose a topic for your survey. 1. Collect your data. 2. Summarize the results with a graph and a description. When they say "Summarize the results with a graph," do they mean that I display the results with a ...
*May 23, 2014*

**math**

A bank wishing to determine the average amount of time a customer must wait to be served took a random sample of 100 customers and found that the mean waiting time was 7.2 minutes. Assuming that the population standard deviation is known to be 15 minutes, find the 90% ...
*May 22, 2014*

**LA**

What are some Disney movies that portray the American dream?
*May 22, 2014*

**Sports**

Are board games sports?
*May 22, 2014*

**Physic**

The maximum speed of a mass attached to a spring is vmax = 0.438 m/s, while the maximum acceleration is 1.53 m/s2. What is the maximum displacement of the mass? (Answer: 0.125m) Answer is provided above. Please show all work on how to get the answer. Thank you.
*May 22, 2014*

**English**

Which of these sentences has a missing antecedent? Although my sister is a swimmer, I don't know anything about it. When Trina and Rachel went to the mall, she drove.
*May 22, 2014*

**math**

Explain Yvonne's mistake in the following problem. 8x + 6x + 2 = 16x
*May 22, 2014*

**statistics**

A bottling commpany produces bottles that hold 10 ounces of liquid . Periodically, the company gets complaints that their bottles are not holding enough liquid. To test this claim, the bottling company randomly samples 25 bottles and finds the average amount of liquid held by ...
*May 22, 2014*

**math**

Mr chen deposits a certain amount in a bank if the interest of the bank decreased from 3.75% to 3.5% per annum mr chen's interest decrease by 50$ in a year find the sum of amount he deposits
*May 22, 2014*

**Math**

A stadium manager has signed five acts this year with a combined revenue projection of $1,000,050. The cost for these is expected to average $85,000 per act. How much profit margin does the stadium expect this last year?
*May 22, 2014*

**Algebra**

(4j^2)^2
*May 22, 2014*

**Algebra**

Factor 3x^2 + 2x - 13
*May 22, 2014*

**Statistics**

Coaching companies claim that their courses can raise the SAT scores of high school students. But students who retake the SAT without paying for coaching also usually raise their scores. A random sample of students who took the SAT twice found 427 who were coached and 2733 who...
*May 22, 2014*

**Business**

Are there any similarities between the characteristics demanded of an entrepreneur and those of a professional athlete? Would an athlete be a good prospect for entrepreneurship? Why or why not? Do you agree with authors Coté and Piff that those of higher social class ...
*May 22, 2014*

**chem**

18.024l
*May 22, 2014*

**chem**

The VoLume of a gas is 15.0 L when the temperature is 75.0°C. If the temperature is changed to standard temperature without changing the pressure, what is the new volume?
*May 22, 2014*

**Help me? Thanks~**

Okay. sorry/
*May 22, 2014*

**My Answers.**

1.A 2.C 3.D 4.D 5.B 6.B 7.D 8.A 9.C 10.B 11.C 12.C 13.A
*May 22, 2014*

**Science--worked hard, check my answers sum1?**

1. What do bone marrow and the epidermis have in common? They are both sites of new cell formation. They both contain structures that assist the body in cooling down if overheating occurs. They both contain or are associated with sensory neurons. They are both involved in ...
*May 22, 2014*

**Chemistry **

The heat of combustion of methane is -890 kj per mole. How much heat will be produced in the combustion of 6.25 mol of methane?
*May 22, 2014*

**Algebra**

An electronics store is deciding how to price one of its products. The equation P = -25d^2 + 500d predicts the total profit P as a function of the product's price in dollars d. What price will produce the highest total profit?
*May 22, 2014*

**English**

No one saw Dad and me waiting in the queue. No one saw Dad and I waiting in the queue. Which sentence is correct?
*May 22, 2014*

**Math**

Your credit card has a balance of $1000 and an interest rate of 21%. Each month you make the minimum requirement of $20. During January 10 through February 9 billing period you pay the minimum required payment on january 25th. find the average daily balance, finance charge, ...
*May 22, 2014*

**Check my answers? thank you.**

I think you're guessing. What's the function of the skeletal system? To move the body, right? For 6, not ALL infectious agents are living. What about viruses?
*May 22, 2014*

**Check my answers? thank you.**

I said 2 is wrong, not 1. 6 is not A. Aren't bacteria living organisms? Perhaps you should do a bit more research on viruses.
*May 22, 2014*

**Check my answers? thank you.**

2 and 6 are wrong.
*May 22, 2014*

**Algebra**

What are the solutions of the equation 18x^2 - 25x - 3 = 0? A. -1/9,3/2 B. 9, 3/2 C. -9,2/3 D. 1/9, -3/2
*May 21, 2014*

**algebra**

Use a calculator to evaluate an ordinary annuity formula A = m 1 + r n nt − 1 r n for m, r, and t (respectively). Assume monthly payments. (Round your answer to the nearest cent.) $150; 5%; 40 yr A = $
*May 21, 2014*

**Algebra**

You take a three question true-or-false quiz. You guess on all the questions. What is the probability that you will get a perfect score?
*May 21, 2014*

**Science--check my answers.**

1. Which of the following effects would you expect if red blood cells were shaped like neurons? They would not be able to move as easily through capillaries. **** They would more easily carry out gas exchange in the alveoli. They would not need to be transported through the ...
*May 21, 2014*

**Precalculus**

Thank you, Reiny! :)
*May 21, 2014*

**Precalculus**

Find the values of x and y. Matrices.. [-4 2 3 5 3 5 2 -3 1] TIMES [2 x 5] EQUALS [9 38 y] It is difficult for me to type the matrices in but.... The first matrix is 3x3 consisting of -4,2,3 in the first row.. 5,3,5 in the second row ......2,-3,1 in the third row... Then ...
*May 21, 2014*

**algebra**

A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount...
*May 21, 2014*

**Math**

A video rental company offers a plan that includes a membership fee of $6 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $48 per month for unlimited DVD rentals. If a customer borrows enough DVDs in a month, the two plans cost the same amount...
*May 21, 2014*

**math**

A section of a hiking trail begins at the coordinates (-7, 5) and follows a straight path that ends at the coordinates (3, 9). What is the rate of change of the hiking trail?
*May 21, 2014*

**Algebra**

Suppose you roll a red number cube and a yellow number cube. What is the probability of rolling any matching pair of numbers? (Hint: Add the probability of each of the six matches.)
*May 21, 2014*

**health**

What is bone strengthening?
*May 21, 2014*

**Science help!!!!**

cvbhytresdfg
*May 21, 2014*

**math**

What does the word rational coordinates Mean? What are they used for and what is a real world problem that can help me understand it?
*May 21, 2014*

**Science/Health**

Correct.
*May 21, 2014*

**Algebra**

A bag holds 20 yellow mints and 80 other green or pink mints. You choose a mint at random, eat it, and choose another. Find the number of pink mints if P(yellow then pink) = P(green then yellow). What is the least number of pink mints if P(yellow then pink) = P(green then ...
*May 21, 2014*

**History of KKK**

the history of the KKK and their activities in the postwar South a. What conditions led to the formation of this group? b. What were their tactics? c. What was the result of the activities?
*May 21, 2014*

**Spanish**

a. crowds of people -3 b. the members of the fraternity, who perform the authentic act of penitence --6 c. the float which carries La Virgen -7 d. musical compositions - 1 e. members of the fraternities that make up the procession. -4 f. a float or portable platform and all ...
*May 21, 2014*

**Statistics**

A confidence interval for a population mean has a margin of error of 3.1. a)Determine the length of the confidence interval. b)If the sample mean is 56.7, obtain the confidence interval.
*May 21, 2014*

**fifth grade math**

susan picked a watermelon that weighed 8/15 lb. larry a watermelon that weigh 1/4 as much as Susans. how muchdid larrys weigh
*May 21, 2014*

**Movie comprehension**

I missed class and did not watch " Never Cry Wolf". So .... What did the wolf do to Tyler's suitcase? How did Tyler respond to the wolf's actions and what was the meaning of his responses?
*May 21, 2014*

**Biology - Help!!**

Did u get the answers
*May 20, 2014*

**math**

Fun & Games is having a sale. There is a special price for games sold in packs. Pack A cost $ 41.70 and includes Feisty Fox, Dolphin Derby, and Rat Race. Pack B cost $ 37.95 and includes Rat race and two Feisty Fox games. Pack C cost $ 26.75 and includes Dolphin Derby and ...
*May 20, 2014*

**Precalculus**

It's asking for general form, not slope-intercept
*May 20, 2014*

**Precalculus**

My teachers answer was 5x+8y=32 Your answer is clearly wrong..
*May 20, 2014*

**Precalculus**

Find the general form of the equation for the line with the given properties Slope=-5/8 ; containing the point (0,4)
*May 20, 2014*

**physics**

If I put the tip of a 100 foot pipe in the ocean and applied a perfect vacuum to the top, how high would the water rise in the pipe?
*May 20, 2014*

**math**

-3T+8=20
*May 20, 2014*

**Math**

Hehe, thanks Ms. Sue. Your the best! :D
*May 20, 2014*

**Math**

Please help!
*May 20, 2014*

**Math**

You want to determine the average number of songs people keep on their MP3 players. You want to collect data from a random sample of at least 300. Which of these would be the most valid method of collecting data? a. Survey students coming in and out of your school cafeteria. b...
*May 20, 2014*

**Algebra**

Oops! I forgot the square root. So would the standard variation be 3.65?
*May 20, 2014*

**Algebra**

Find the mean and standard deviation of the data set. If necessary, round to the nearest hundredth. 4, 8, 5, 12, 3, 9, 5, 2 Mean is 6 and standard deviation is about 13.33?
*May 20, 2014*

**Algebra 1**

There are 67 members in the club. There are 10 freshmen. The probability that a freshman IS chosen is 10/67. So, subtracting 10 from 67, you get 57. The probability that a freshman IS NOT chosen is 57/67.
*May 20, 2014*

**Algebra 1**

There's no question in that one.
*May 20, 2014*

**chemistry**

name the compound CH3CH=C(CH3)CH(CH3)2.
*May 20, 2014*

**geography **

Wallace Creek Has Been Offset By 130.0 meters ( 430 feet) to the right along the fault. The age of the stream deposits indicates that this offset began 3700 years ago. calculate the average rate of movement along this segment of the fault in centimeters per year. (A) total ...
*May 20, 2014*

**Physics**

A heat engine has a hot reservoir of 680°C and a cold reservoir of 220°C. What is the efficiency of the engine?
*May 20, 2014*

**PE--Check my answers :)**

Which resource would be the best choice to learn more information about studying martial arts? dance studio *** local bait shop phone book public golf course 2. At the 8th grade dance, Myron asks Janelle if she would like to dance with him seconds before Octavio asks Janelle ...
*May 20, 2014*

**Social Studies**

My text says that rising sea levels could put the whole islands underwater, h is why I think it is the greatest concern.
*May 20, 2014*

**Social Studies**

Which of the following might be the greatest danger caused by global warming for the Pacific region? A. complete loss of nations B. desertification C. deforestation D. drought A?
*May 20, 2014*

**History**

tts
*May 20, 2014*

**Math help plz**

The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that travel through the blood to ...
*May 20, 2014*

**Pre Algebra **

1. You roll a number cube numbered one to six 12 times. P(5)=2/3. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment. C. Theoretical; the ...
*May 20, 2014*

**Maths Probability**

And the rest? Thanx Please give me at-least one more...
*May 20, 2014*

**Maths Probability**

Can you please answer??
*May 20, 2014*

**math--check my answer**

stem-and-leaf plot 3| 7 8 9 4| 1 3 7 5| 2 4 37, 38, 39, 41, 43, 47, 52, 54 *** 73, 83, 93, 14, 34, 74, 25, 45 7, 8, 9, 1, 3, 7, 2, 4 37, 38, 39, 14, 34, 74, 25, 45 =
*May 20, 2014*

**VERBS**

He suffered an injury to his knee, and this is causing him pain and discomfort
*May 20, 2014*

**Math**

What data are represented by the stem-and-leaf plot below? stem-and-leaf plot 3| 7 8 9 4| 1 3 7 5| 2 4 37, 38, 39, 41, 43, 47, 52, 54 73, 83, 93, 14, 34, 74, 25, 45 7, 8, 9, 1, 3, 7, 2, 4 37, 38, 39, 14, 34, 74, 25, 45
*May 20, 2014*

**Math help plz**

Thank you, Ms.Sue.
*May 20, 2014*

**Math help plz**

Answers: 1. 16.1 2. 15 3. 14
*May 20, 2014*

**Math help plz**

19, 19, 14, 14, 16, 19, 19, 16, 16, 15, 17, 16, 17, 16, 15, 14, 15, 15, 17, 14, 16, 15 2. Find the mean for the data. If necessary, round to the nearest tenth. 17.5 16.5 17.1 16.1 3. Find the median for the data. 17 16 15 14 4. Find the mode for the data. 14 15 16 17
*May 20, 2014*

**English**

Thanks!
*May 20, 2014*

**English**

D was supposed to be "Anna and her..."
*May 20, 2014*

**English**

B doesn't seem correct either, and A and D are not really different (to me).
*May 20, 2014*

**English**

Which sentence is correct? A. John took Anna and them to the park. B. John took Anna and I to the park. C. John took Anna and he to the park. D. John took Anna her to the park. Can't decide between B and C?
*May 20, 2014*

**Probability**

1. 3/32 2. 0.5 3. 1/10 4. 32/3 5. 12
*May 20, 2014*

**data analysis**

A survey of 1500 college students found that 675 stay on campus in a dorm. Find the mean and standard deviation of the proportion of the sample.
*May 20, 2014*

**math**

A unicycle travels 50 feet. If the radius of the tire is 24 INCHES, how many times does the tire rotate?
*May 20, 2014*

**math **

Their car gets 30 miles per gallon in gas mileage. They are traveling for seven hours at a rate of 55 miles per hour. Assuming no stops, how much gas will they need to complete their seven hour trip?
*May 20, 2014*

**algebra**

A textbook store sold a combined total of 205history and math textbooks in a week. The number of history textbooks sold was 87more than the number of math textbooks sold. How many textbooks of each type were sold?
*May 19, 2014*

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