Saturday

November 28, 2015
Total # Posts: 926

**Physics**

A rocket is fired vertically with an upward acceleration of 30 m/s2. After 20 s, the engine shuts off and the rocket then continues rising (while in free-fall). The rocket eventually stops rising and then falls back to the ground. (a) What is the highest point the rocket ...
*September 13, 2010*

**Word Problems**

1. Express the area of a square as a function of its diagonal. 2. The height of a cylinder is half the diameter. Express the total surface area as a function of the height. SA = 2πh + 2πr^2
*September 13, 2010*

**algebra**

Is the following pair of lines paralle or perpendicular? Prove the answer. 2y-x=2 y+2x=4 I think that the lines are perpendicular but do not know how to work the problem. x=6/5 y=8/5 Can some one show me how to work this equation?
*September 11, 2010*

**algebra**

The base of a triangle is 3cm grater than the height. The area is 14cm^2. Find the height and length of the base. Please show how you dervied at your answer.
*September 2, 2010*

**algebra**

The polynormial 0.041h-0.018a-2.69 can be used to estimate the lung capacity in liters of a female with height h, in cetimeters, and age a, in years. Find the lung capacity of a 40-year old woman who is 190 centimeters tall. Round to the nearest hunderd.
*September 2, 2010*

**algebra**

The mass of Neptune is about 1.03x10^23 metric tons. The mass of the sun is about 1.998x10^27 metris tons. About how many times the mass of Neptune is the mass of the sun? Round to the nearest thousandth, if needed use scientific notation. Use the multiplication symbol in the ...
*September 2, 2010*

**algebra**

The number N, in millions, of hearing impaired people of age x can be approximated by N=0.00006x^2 - o1x + 1.1.Approximate to the nearest million the number of hearing impaired people of age 45 and 70.
*September 2, 2010*

**algebra**

The number N, in millions, of hearing impaired people of age x can be approximated by N=0.00006x^2 - o1x + 1.1.Approximate to the nearest million the number of hearing impaired people of age 45 and 70.
*September 1, 2010*

**algebra**

(3^4)6 Simply. Type exponential notation with postive exponents. Simplify your amswer.
*September 1, 2010*

**algebra**

The mass of Neptune is about 1.03x10^23 metric tons. The mass of the sun is about 1.998x10^27 metris tons. About how many times the mass of Neptune is the mass of the sun? Round to the nearest thousandth, if needed use scientific notation. Use the multiplication symbol in the ...
*September 1, 2010*

**algebra**

The polynormial 0.041h-0.018a-2.69 can be used to estimate the lung capacity in liters of a female with height h, in cetimeters, and age a, in years. Find the lung capacity of a 40-year old woman who is 190 centimeters tall. Round to the nearest hunderd.
*September 1, 2010*

**algebra**

The base of a triangle is 3cm grater than the height. The area is 14cm^2. Find the height and length of the base. Please show how you dervied at your answer.
*September 1, 2010*

**algebra**

solve for y and x, please show steps 3x+3y=9
*August 24, 2010*

**algebra**

solve for y and x show steps 4x+4y=7
*August 24, 2010*

**algebra**

solve for y and x 2x+4y=8 show steps
*August 24, 2010*

**algebra**

Hoe do you do the equation 8y=4x+16 solve for y and x
*August 24, 2010*

**algebra**

How do you do the equation 8x+20y=10 solve for y and x
*August 24, 2010*

**algebra**

how do you do the equation y=x +6
*August 24, 2010*

**computers**

Scenario: You have been employed as the IT Director for the ABC Company. The company comprises 15 employees and it has not upgraded its computer system since 1996. Project: The President of the Company has asked you to replace the computers in every department. The researched ...
*August 22, 2010*

**Math- Completely confused! **

Simplify each expression (where possible) and write the answer without using negative or fractional exponents. Assume that X>0. a. 8x^(1/3) b. (-8x)^(1/3) c. (8x)^(-1/3) d. (3x^(3/4))(16x)^(1/4) e. (x^(1/2)) / (x^(5/2) so far my answers are : a.2x b. -2x c.1/2x but i feel ...
*August 21, 2010*

**algebra**

The width of a rectangle is fixed at 30cm. What lengths will make the perimeter grater than 82cm.?
*August 20, 2010*

**algebra**

During a game, a person won 500 points. What is the corresponding number for this sentence?
*August 20, 2010*

**algebra**

The product of 21% and some number. Type the percentage as a decimal. Use y to respersent some number.
*August 20, 2010*

**algebra**

Evaluate: p + q _____ 9 p =80 and q =1
*August 20, 2010*

**algebra**

Soybean meal is 12% protein: cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb. mixture that is 8% protein?
*August 20, 2010*

**algebra**

Translate to an algebraic expression. The product of 44% and some number. Use y to respresent some number. Type the percentage as a decimal.
*August 20, 2010*

**algebra**

find the indicated outputs for f(x)5^2-4x F(0)= f(-1)= f(2)=
*August 20, 2010*

**algebra**

solve by elimination 2r-5s =-22 5r+2s = 32
*August 20, 2010*

**algebra**

find the domain of the function g(x)=8/5-7x
*August 20, 2010*

**com 155**

This is what I wrote for my week 6 assignment but I am so confused on adjectives and adverbs as well as superlatives and comparatives. I have to underline adjectives and bold adverbs. Help I just don't seem to be getting the hang of it. Avatar the movie was well written ...
*August 20, 2010*

**Algebra**

Amy paid 72.44 for a pair of shoes during a 25% 0ff sale. What was the regular price?
*August 18, 2010*

**Algebra**

In 1994, the life expectancy of males in a certain country was 64.8 years. In 2000, it was 67.5 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994. E(t)=______ t + ______. Use the function to predict the life expectancy od ...
*August 18, 2010*

**Algebra**

Soybean meal is 12% protein, cornmeal is 6% protein. How many pounds of each should be mixed in order to get 240lbs, mixture that is 8% protein
*August 18, 2010*

**Algebra**

Evaluate p=q for p=80 and q = 1 ___ 9
*August 18, 2010*

**Algebra**

Find the indicated outputs for f(x)= 5 x(2) - 4x. F(0)= f(-1)= f(2)=
*August 18, 2010*

**Algebra**

The equation y = 1777x + 27,152 can be used to predict the number y of gun deaths in the United States. x years after 2000, that is x=0 corresponds to 2000: x = 2 corresponds to 2002, x = 5 corresponds to 2005, and so on. Preddict the number of gun deaths in 2005 and 2007. In ...
*August 18, 2010*

**algebra**

Are the inequalities x > 8 and -x < 8 equivalant? Why or why not?
*August 17, 2010*

**English**

Anne wrote there is nothing we can do but wait as calmly as we can til the misery comes to an end....How does this statment help to place readers in the historical context?
*August 11, 2010*

**algebra**

Write interval notation for the set {x|-4 < x < 4 -
*August 7, 2010*

**algebra**

Determine whether the given numbers are a soluation of the inquality. 3,-12,-17,-1 y - 9 > 2y - 4
*August 7, 2010*

**algebra**

Soybean meal is 16% protein: cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb. mixture that is 14% protein?
*August 7, 2010*

**algebra**

Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 61 points. They won 11 more games than they tied. How many wins and how many ties did the team have?
*August 7, 2010*

**algebra**

Solve by elimenation 0.3x -0.27 =4 0.2x + 0.3y = -37/17
*August 7, 2010*

**Math 208**

Graph y<2x+2
*August 3, 2010*

**math**

Sorry probability is not really easy for me. I was thinking .3=9
*July 30, 2010*

**math**

Please help with this question. A bag contains 10 marbles of which 3 are red. A marble is selected at random and replaced. A second marble is then selected at random. What is the probability that both marbles are red?
*July 30, 2010*

**algebra**

solve by elimination 2r - 9s = -17 9r + 2s = 51
*July 5, 2010*

**health**

When comparing hemodialysis and peritoneal dialysis, it can be said that A. hemodialysis takes longer than peritoneal dialysis. B. peritoneal dialysis involves the removal of blood from the patient. C. hemodialysis is a step closer to the need for transplantation compared with...
*June 30, 2010*

**health**

When comparing the blood smears of patients with intact spleens to those of patients without spleens, the blood smears of patients without spleens will likely reveal A. many more fragile and old erythrocytes. B. many more lymphocytes and monocytes. C. many more bacteria. D. ...
*June 30, 2010*

**algebra**

Describe the values for x that may not be appropriate values even when they are defined by your classmates’ function
*June 29, 2010*

**health**

12. A person with an injury to the extrinsic muscles of the eye would find it difficult to A. focus light onto the retina. B. interpret visual input. C. move the eyeball. D. control the amount of light entering the eye. Maybe C.?
*June 28, 2010*

**health**

Please help as this is so confusing tome! 25. In addition to the nucleus, cytoplasm, and cell membrane, a single neuron possesses A. one dendrite and several axons. B. several dendrites and one axon. C. many nuclei and one neurilemma. D. one nucleus and many neurilemma.
*June 28, 2010*

**health**

18. Which of the following best describes the overall function of hormones? A. To control physiological processes in the body B. To provide a pathway for nerve messages C. To stimulate the growth and maturation of body organs D. To determine masculine or feminine reproductive ...
*June 28, 2010*

**health**

12. A pathology report shows adenocarcinoma. What type of information should also appear in this report? A. Tissue structure B. Presence of cancer in an organ C. Condition of a particular organ D. Condition of the heart I think the answern is A.
*June 28, 2010*

**finance**

Last year Chart Corp. had sales of $300,000, operating costs of $265,000, and year-end assets of $200,000. The debt-to-total assets ratio was 25%, the interest rate on the debt was 10%, and the firm's tax rate was 35%. The new CFO wants to see how the ROE would have been ...
*June 27, 2010*

**Finance**

Burger Corp has $500,000 of assets and it uses only common equity capital (zero debt). Its sales for the last year were $600,000 and its net income after taxes was $25,000. Stockholders recently voted in a new management team that has promised to lower costs and get the ROE up...
*June 27, 2010*

**research paper on code of medical ethics opinion 5**

I already have that website thanks. What I am trying to do is to get more information that this website don't provide. Thank you agian for your help.
*June 24, 2010*

**research paper on code of medical ethics opinion 5**

I need help with trying to find websites on AMA code of medical ethics opinion 5.07. I am taking a class through penn foster and I am stuck. If anyone could help that would be great! Thanks!
*June 24, 2010*

**health**

A 72 year old man is diagnosed with a 7 cm primary tumor in his colon, which has spread to his liver. Which of the following features indicate that the tumor is malignant? A. The patients advanced age B.The location of the primary tumor C.THe spreading of the tumor D. THe size...
*June 23, 2010*

**health**

A 67 year old man is diagnosed with cancer subsequently undergoes chemotherapy. As an excpected side affect of chemotherapy, his bone marrow stops functioning. What ia a potential consequence of this loss of function? A. his calcium levels will decrease. B. he'll suffer ...
*June 23, 2010*

**Career Studies**

go to glogster. It makes creative and neat project. You can print it out .
*June 14, 2010*

**physics**

piston 1 has a diameter of 0.25 in; pistol 2 has a diameter of 1.5 in. In the absence of friction, determine the force necessary to support the 500 lb weight.
*June 10, 2010*

**math**

In a given parking lot there is a 1/2 chance a parking space will have a white car and 1/2 chance it will have a black car. if you monitor a random parking space for three days, what is the probability it will have a black car parked in it at least 2 days
*June 7, 2010*

**chemistry**

Calculate the density of carbon monoxide gas at standard conditions if 25.0 mL of the gas weighs 0.0329 g at 800.00 mm of pressure.??
*May 27, 2010*

**Math**

C= cashews mixture sells 10x 8.40=$84 8c+9(10-c) 90-c=84 C=6 there are 6 kg of cashews in the mix
*May 25, 2010*

**Geom**

What is the approximate angle of elevation when a person is 74" tall and the person's shadow is 70" long?
*May 23, 2010*

**Physics**

Sally travels by car from one city to another. She drives for 28.0 min at 63.0 km/h, 50.0 min at 40.0 km/h, and 50.0 min at 43.0 km/h, and she spends 13.0 min eating lunch and buying gas. Find the trip's average speed and total distance traveled...
*May 23, 2010*

**Math**

A square has a perimeter of 24cm. If a diagonal line is drawn through the square in such a way that two identical right triangles are produced, what is the length of the diagonal line
*May 20, 2010*

**College Math**

10 x 10 = 100 + 30 = 130 / 5 = 26 - 15 = 11 What is the quotient i think it is five am i right if not what would it be
*May 16, 2010*

**10th grade**

how does annie dillard expreses her analysis for "transfiguration"?what is she mostly talking about?
*May 13, 2010*

**math**

What is the answer for simplify fraction 12/44
*May 8, 2010*

**chemistry**

Does the application of heat to a substance always produce a chemical change? And give examples to support your answer.can someone help me?
*May 3, 2010*

**chemistry**

Does the application of heat to a substance always produce a chemical change? And give examples to support your answer.can someone help me?
*May 3, 2010*

**chemistry**

Does the application of heat to a substance always produce a chemical change? And give examples to support your answer.can someone help me?
*May 3, 2010*

**algebra**

3x + 4y=5 6x+8y=10
*April 27, 2010*

**math**

160 cornmeal 80 soybean Just completed this question in math 116
*April 27, 2010*

**ila**

In the sentence: What is the formula for the area of a parralellogram, Alicia? how is the word 'Alicia' used in the sentence?
*April 22, 2010*

**chemistry**

Waait, The answer should be a negative number because that just means that the concentration is TOO high! pH is the negative log of the hydrogen ion concentration. Recall that pH can be negative when the hydrogen ion concentration is very high. So, Since your [H+]= 6040 M -log...
*April 19, 2010*

**chemistry**

I have the same issuee The H^+ concentration is 3685 on my example, however when i enter -log[H+] I get a negative numbe which isn't the pH :(
*April 19, 2010*

**Statistics**

1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. b. The graph of a normal distribution is bell-shaped. c. If a population has a normal distribution, the mean and the median are not equal. d. The graph of a ...
*April 19, 2010*

**Finance**

ROI & NPV: wireless order-tracking system I need to identify the ROI and NPV of the wireless order-tracking system. Here is the information I have been given: - The acquisition cost is $35,000 paid at the time of installation. - It reduces the wait staff by one person: Figure...
*April 11, 2010*

**college**

3^5x + 13 = 1/9
*April 10, 2010*

**math- Algebra 2**

243^0.2x= 81x+5 how do i solve
*April 9, 2010*

**Bus Law 201**

Gavin, an 18 year old sudent was eating lunch on the grounds of a school. He threw a half- eaten apple toward the outside wall of a classroom some distance way. The apple sailed through a slowly closing door and struck a teacher who was in the room. The teacher was knocked to ...
*April 6, 2010*

**Physics**

A rock is dropped of the side of a bridge and hits the water below 4s later. a. What was the rock’s velocity when it hit the water? b. What was the rock’s average velocity as it fell? c. What is the height of the bridge above the water?
*April 6, 2010*

**calculus**

What is the polar form of (3^1/2 - i)? I know r=(x^2+y^2)^1/2 and theta = arctan (y/x) I know r=2, but how do you find theta?
*April 6, 2010*

**math substitution method**

m-3n=8
*March 28, 2010*

**Pre-Cal**

solve the problem: f(x) = -5x+2 and g(x) = 8x^2+9x+7
*March 25, 2010*

**college**

solve each equation 1/5y2-2=-3y
*March 24, 2010*

**Calculus**

What's the integral of e^(1+i)x dx? Please provide the full solution because I don't understand how to do this question at all.
*March 6, 2010*

**chemistry**

When silver nitrate reacts with hydrochloric acid, what type of reaction takes place
*March 5, 2010*

**Computer Information Systems**

how can you distinguish between computer electrical switches and meaningful information
*February 25, 2010*

**Math-Please Check Work!**

Find the image of P(5,-3)under each of the given transformations: 1. r x-axis(5,-3)? 2. Rorigin (-5,3)? 3. R90 (3,5)? 4.T 0,3 (5,0)? 5.r x-axis o T2,2 (7,1)? 6. r x-axis o r y=x (-3,-5)? 7. r y=x o r x-axis (3,5)? 8. R(2,2) o T5,-3 (12,-4)? Thank you!
*February 22, 2010*

**Math**

pls help! The cost to the chicago tribune for sunday home delivery is approximately $0.53 per newspaper with fixed costs of $1,070,00.Write an equation that relates the cost C and X of copies delievered.
*February 18, 2010*

**Chemistry **

no i didn not. but thank you!
*February 16, 2010*

**Chemistry **

How much heat (in kilojoules) is released on reaction of 4.10 g of Al? Reaction: 2Al(s) + 3Cl2(g)--->2AlCl3(s) Delta H= -1408.4 KJ
*February 16, 2010*

**Chemistry (creativity)**

Hey everyone. Well the part I need help in isn't exactly the chemistry part. My assignment was to research an element, and at the end, come up with some creative picture/cartoon. The problem is... I'm not exactly the creative type. My element was Mercury, any ideas? ...
*February 15, 2010*

**English**

"it"?
*February 15, 2010*

**chemistry**

Calculate the volume (mL) of the solute (CH3)2CO and the volume (L) of the solvent H2O that should be added to prepare 1.36 kg of a solution that is 25.7 g (CH3)2CO per 100. g solution. Molar Mass (g/mol) (CH3)2CO 58.05 H2O 18.015 Density (g/mL): (CH3)2CO 0.7899 H2O 0.9982 ...
*February 14, 2010*

**FlunkyJunkie**

Calculate the volume (mL) of the solute (CH3)2CO and the volume (L) of the solvent H2O that should be added to prepare 1.36 kg of a solution that is 25.7 g (CH3)2CO per 100. g solution. Molar Mass (g/mol) (CH3)2CO 58.05 H2O 18.015 Density (g/mL): (CH3)2CO 0.7899 H2O 0.9982 ...
*February 14, 2010*