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Posts by tasha

Total # Posts: 335

geometry
BC is an altitude with length of 30 of ƒ´ABD. AC has a length of 16 What is the length of CD? If necessary, round your answer to two decimal places.

CALCULUS
Differentiate: P(t)=50(2)^(t/2)

chemistry
1.0 of a 4.0 solution is added to water so that the final volume is 8.0 .

math
Suppose that a natural number from 1 through through 11 inclusive is selected at random. What is the probability that the number selected is even if you know that it is prime?

math
Suppose that the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 50 inches. The formula for the perimeter of a rectangle is P=2L+2W. a) Set up an equation for the perimeter involving only L, the length of the rectangle. B) ...

physics
the speed of a transverse wave on a string is 450 m/s while the wavelength is .18m. the amplitude of the wave is 2mm how much time is required for a particle of the string to move through a total distance of 1km

adult education statistcs
if a researcher were studying the effects of a teaching method on patient learning outcomes, how must he or she word the research questions to use a t test for statistical differencesand what type of data should be collected?

adult education
if researchers were studying the effects of teaching methods on patient learning outcomes how must they word the research question to use t-test for statistical differences?

math
Can someone assit me with my two math problems Assume that the salaries of elementary school teachers in the united states are normally distributed with the mean of 36,000 and a standard deviation of 6,000. What is the cut off salary for teachers in the bottom 10%? A physical ...

math
Following are three sets of letters. Draw one letter from Set 1 and place it in Set 2. Then draw one letter from Set 2 and place it in Set 3. Finally, draw a letter from Set 3. What is the probability that the last letter drawn is a B? B C B B B B Set 1 Set 2 Set 3

math
Following are three sets of letters. Draw one letter from Set 1 and place it in Set 2. Then draw one letter from Set 2 and place it in Set 3. Finally, draw a letter from Set 3. What is the probability that the last letter drawn is a B? B C B B B B Set 1 Set 2 Set 3

english
Critique this paragraph:Wife beating affects a woman both physically and emotionally. Having little or no charge of financial matters, or plans, these women devote themselves to their husbands and families, often resulting in a loss of friendship and interests. They live in ...

Math
Oh, okay thank you Jen

Math
I cant thank you enough, Ms. Sue! I hope you have a wonderful evening

Math
Thanks Ms. Sue Perform the computation. (-20) - (-1) A) -19 B) -21 C) 21 D) 19 =-19 Compute the value: |– 6 – 4| =-10 Evaluate: (–9)( –7)( –5)( –2) A) 630 B) -630 C) -621 D) 621 (-63)(-10)=-630 David's company has to ship 3300 boxes of ...

Math
Thank you. If you don't mind can you look over some more problems if available? I just want to ensure that I am doing the problems correctly

Math
oh okay so I jus need to subtract correct? 20*9=180 189-176=4 right?

Math
Hi these are the problems I attempted, can someone tell me If I did them correctly? Thanks in advance3 Jane has invited 126 people for a pizza party. If each pizza has 18 slices and she estimates that she needs 3 slices per person, then how many pizzas does she need to order? ...

algebra
Cole's two student loans totaled $31000. One of his loans was at 2.8% simple interest and the other at 4.5%. After one year, Cole owed $1024.40 in interest. What was the amount of each loan?

Math
Thank you Ms. Sue, for helping me with my problem.

Math
Use the ideas of additive and multiplicative inverses to solve the following equation: –7y + 12 = –2

Volume of a rectangular prism
My daughter has this question and it does not give the length, width, or height of the prism. It only gives the volume and asks to give the approximate volume of the box if the sides are twice as long as they were originally.

Math
Bob's frog can travel 6 inches per jump, Kim's frog can travel 9 inches, and Jack's frog can travel 13 inches. If the three frogs start off at point 0 inches, how many inches will it be to the next point that all three frogs touch?

chemistry
A stock solution was prepared by dissolving exactly 0.4000 g of pure ASA (180.16 g/mol) in 10.00 mL of NaOH and heating the solution to a gentle boil. After cooling to room temperature, the solution was poured into a 250-mL volumetric flask and diluted to the mark with DI ...

Chemistry
how do you find the molar volume of a gas?

chemistry
Determine the ionization energy of a hydrogen atom (in kJ/mol) if the electron is in its ground state. (Hints: Use the Rydberg equation, remember E=hc for a single H atom, and R=109678x10–2nm–1 )

chemistry
divide 25 g by the molar mass of nacl

chemistry
thank you!!

chemistry
i calculated n from pv=nrt but, when i divided it into 40.4 g of c5h12, i got the molar mass of the compound with is around 72. after that, i had no idea what to do

chemistry
A 40.4 g sample of a gas with the empirical formula C5H12 occupied a volume of 3070 mL with a pressure of 5016.0 torr at 168 °C. Enter the molecular formula of the compound.

Chemistry
You have 2.0 g of solid A, 100.00 mL of water (100.0 g of water), and the total mass of solid A combined with 100.00 mL of water is found to be 102.0 g. The mass percent of A in this solution is

algebra
You are planning to spend no less than $6,000 and no more than $10,000 on your landscaping project. a)Write an inequality that demonstrates how much money you will be willing to spend on the project.

math
Find a rational number between 1/8 and 2/4

math
Order each of the following decimals from greatest to least: a)1.4519, b)1.4519, c)1.4519, d)1.4519, e)-0.134, f)-0.13401, g)0.13401 For this one there lines over these numbers a)519 b)9 c)none d)19 e)none f)401 g)401

math
Paul read 20 pages of a book in 15 minutes. (a) What is Paul’s reading rate of pages per minute? (b) If he continues to read at the same rate, how many pages will he read in 1 hour?

National Deploma Graphics
What are the changes between realisum and abstraction in Europe ?

physics
It is greater than 150 N

SOCIAL STUDIES
without our two great political parties cutting acrOSS ECONOMIC AND GEOGRAPHIC INTEREST, DEMOCRACY AS WE KNOW IT COULD NEVER HAVE BEEN MADE TO FUNCTION, THE AUTHOR OF THIS STATEMENT PROBABLY MEANT?

Algebra 1
13/18 divided by 20/27

math
x^4y^2 when x=5/6 and y = -3/5 pls help .. i don't get this

scince
how many milligrams are in one oz

history
in what ways does Magna Carta still impact laws

anthropology
i am sorry are there links and where can i find it in culutural anthropology

anthropology
There are anthropological links between social science and natural science

history
What was the role of the Mayflower Compact in creating the New Plymouth society?

history
so i don't unerdstand then how were there differences important to the international state of affairs in 1450?

history
so i don't unerdstand then how were there differences important to the international state of affairs in 1450?

history
how were the differences from north america, asia, eurasia, and europe important to the international state of affairs in 1450?

Health
I know how treatments have changed but we are talking about paying for them. How was health care payed for back in the old days. The only method of payment I can think of is giving the physician some meat, or grain.

Health
It refers to the doctors

Health
I need help with this question. I need some more help please. How has healthcare providers eveolved over time. The only thing that i can think of is treating the patient and receiving something that they have such as meat, or grain.

mathematics
Squareroot of (0.0256/25) giving your answer in standard form. Is the ans (0.0256/25)= 0.001024 Squareroot of 0.001024 = 0.032

HEALTH
I don't think that mileage should be included, other test and treatments should be those treatments could prevent a illness. I don't think anybody should be denied anything that would help them remain healthy, in good condition, and to live a longer life.

HEALTH
I think that there should not be limits on the amount of health care provided because the proper treatment is necessary. I feel that everyone should be obligated to received health care help as often as needed for there safety and precautions. When the amount of health care is...

HEALTH
What do you see as the purpose of health insurance? Should there be limits on the amount of health care provided? If yes, what criteria should we use to ration health care? If no, how should health care be financed so that everyone has access?

History
These web site sights didn't help

History
were can I find information about this question? The exploration and settlement of the American continents by Europeans initiated contact between Europeans, Native Americans, and slaves brought from Africa. How did these diverse interactions affect each group? Which group do ...

math
a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Whats the probability od drawing a red chip, replacing it, then drawing a blue chip

math
a bin contains seven red chips, nine green chips, three yellow chips, and six blue chips. Whats the probability od drawing a red chip, replacing it, then drawing a blue chip

us history
What is the International State of Affairs of 1450?

Algebra
Thank you sooo much!

Algebra
40=-0.2x+45 i cant seem to solve this problem.

math-help solve please
how did you get (.035)

math-help solve please
find out how long it takes a $2700 investment to double if it is invested by 7% compounded semiannually. Round to the nearest tenth of a year . Use the formula A=P[1+r/n]^nt

geology
Can you answer this please? What kind of climate coincides with the old Cotton Belt in the United States? How would you characterize it? The U.S. Corn Belt coincides approximately with Dfa climate, which is assigned what name in the North American climate map in your textbook...

7th grade
can there be a prepositin in the subject

Poem: Incident in a rose garden: By Donald Justice
The subject of the poem is talking about death. Is this right?

Math
531 miles on 27 gallons

algebra
-2/17 + p = -2/15

algebra
42xy/54xy

Algebra
find the equivelent of -d(-69)

algebra
x/6=-10 what does x stand for and I need help with 10t + t + 4/9t what is the value of t

com 150 week 6
body parsgraphs and topic outline and working references list check point

com 150
brainstorming and brain mapping

Algebra
Can someone please help me??!!! i don't get this at all!! can you explain it step by step please? :) Ellen and Allen have a lemonade stand. One sixth of their earnings E must be used to pay for supplies for the next day. Each child then gets to keep half of the remaining ...

algebra
Jim is able to sell a hand-carved statue for $670 which was a 35% profit over his cost. How much did the statue originally cost him?

Math
Thanks Bob!

Math
Writing to Explain: Which is greater, the greatest whole number with 5 digits or the least whole number with 6 digits?

Microeconomics
You have this chart of combinations of clothing and food. You have to find the marginal opportunity cost and the total cost of producing the second unit of clothing. And then same for the third unit of clothing. Clothing: 4 3 2 1 0 Food: o 7 13 18 22

Wi-yu tea
HAve anyone tried the wi-yu tea? does it works? any side effects?

The Human Body
should i try the wi-yu tea to help me lose weight?

HCA 240
Write a 150- to 200-word script for a radio ad that promotes a healthy musculoskeletal system in old age. Address the risk factors for: arthritis, osteoporosis, injuries from falls. Incorporate prevention strategies such as: proper nutrition (calcium, diet) Don't need any ...

HCA 240
Sara loved to run. Sha watched the track meets at school even as a first grader. An asthmatic. She occasionally had to use an inhaler, but seemed determined to be an athlete. SHould Sara be discouraged from pursuing her goal?

ecology
Identify a viewpoint given in the video that highlights the importance of biodiversity. Do you believe that every species is connected to one another as expressed in the video? Why or why not?

Substitution method to solve system of equations
y - 2x = -5 3y - x = 5 Please help me out.

Physics
An apartment has a living room whose dimensions are 2.5 m 4.8 m 5.9 m. Assume that the air in the room is composed of 79% nitrogen (N2) and 21% oxygen (O2). At a temperature of 27°C and a pressure of 1.01 105 Pa, what is the mass (in grams) of the air?

Physics
An ideal gas at 6.0°C and a pressure of 1.92 105 Pa occupies a volume of 2.10 m3. (a) How many moles of gas are present? moles (b) If the volume is raised to 4.60 m3 and the temperature raised to 30.5°C, what will be the pressure of the gas? Pa I was able to get 173.81...

Physics
I'm getting 1.415*10^27, but my homework is telling me its wrong. Isn't Avogadro's number 6.022*10^23

Physics
A runner weighs 560 N (about 130 lb), and 74% of this weight is water. (a) How many moles of water are in the runner's body? moles (b) How many water molecules (H2O) are there? molecules I was able to get part (a), but I'm not sure how to get part (b)

Physics
I'm not sure what that is.

Physics
In a diesel engine, the piston compresses air at 302 K to a volume that is 0.0628 of the original volume and a pressure that is 48.2 times the original pressure. What is the temperature of the air after the compression? Can anyone help me work this problem?

Physics
Three moles of a monatomic ideal gas expand adiabatically, and its temperature decreases from 430 to 160 K. (a) What is the work done by (or done to) the gas? Include the algebraic sign. J (b) What is the change in the internal energy of the gas? Include the algebraic sign. J

Physics
An ideal gas at 6.0°C and a pressure of 1.92 105 Pa occupies a volume of 2.10 m3. (a) How many moles of gas are present? moles (b) If the volume is raised to 4.60 m3 and the temperature raised to 30.5°C, what will be the pressure of the gas? Pa

Physics
In an automatic clothes drier, a hollow cylinder moves the clothes on a vertical circle (radius r = 0.39 m), as the drawing shows. The appliance is designed so that the clothes tumble gently as they dry. This means that when a piece of clothing reaches an angle of above the ...

Physics
A child is twirling a 0.0116 kg ball on a string in a horizontal circle whose radius is 0.102 m. The ball travels once around the circle in 0.560 s. (a) Determine the centripetal force acting on the ball. N (b) If the speed is doubled, does the centripetal force double? yes no...

Physics
A car travels at a constant speed around a circular track whose radius is 2.5 km. The car goes once around the track in 430 s. What is the magnitude of the centripetal acceleration of the car?

Geometry
Thanks! I've been working on that problem like.. all morning.

Geometry
Can the Isosceles Triangle Theorem be written as a biconditional? If yes, rewrite it as one, if no, explain why not.

environmental science
If you were an environmental researcher and were given funding to assist with one environmental issue, which one of the following topics would you choose to spend your funds on? · Human Population · Atmospheric Pollution · Water Resources · ...

Math - 3rd grade
Writing to Explain: Which is greater, the greatest whole number with 5 digits or the least whole number w/ 6 digits?

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