Thursday

July 2, 2015

July 2, 2015

Total # Posts: 725

**trig**

find the exact value by using the appropriate half-angle identity: sin(5pi/12)
*June 6, 2010*

**algebra**

*verify that it is an identity
*June 6, 2010*

**algebra**

sin(270 degrees - theta) = -cos(theta)
*June 6, 2010*

**Physics**

In both cases an applied force of 100N accelerates block A which weighs 100N. In which case is this acceleration greater?
*June 6, 2010*

**algebra**

make up situation that can be described in algebra with each expression for 5x, and for x-10, and also 2x+3
*May 19, 2010*

**algebra**

a. p(4000-p) b. 40000-10=39,990 c. 10(39990)=399,900
*April 26, 2010*

**geometry**

a pie shaped property is 650.00'X488.00'X405.00', what is the amount of acreage? thanks for the help.
*April 19, 2010*

**Pre Algebra**

Write an equation to find the value of X if the perimeter of a triangle =36. AC=x-2, BC=x, AB is unknown.
*April 19, 2010*

**math**

Imagine a small chess board, 3 x 3. If you place a knight on the top left hand corner, how many different squares can the knight reach in less than 4 moves?
*April 8, 2010*

**programming**

I am in IT/210 and am having problems with the entire class. But what I am stuck on is as follows: Consider the following statement where X is an integer test score between 0 and 100. input X if (<0=X and X<49) output = "you fail" else if (50 <=X and X < ...
*April 7, 2010*

**Biology Research Paper--Urgent**

Parenthetical Documentation In the MLA format, "parenthetical documentation" is used to briefly identify the sources of information you have borrowed in writing your paper. Parenthetical documentation should be integrated smoothly into the text of your paper, rather ...
*April 7, 2010*

**College English**

I'm stuck. What kind of fallacy is: The officer said the driver had been clocked at 70 miles an hour, but the driver retorted, "You were going just as fast as I was; if I'm guilty, so are you."
*April 7, 2010*

**College English**

I need help with undersatnding fallies. Example of a sentence to list fallicies: You're either a critical thinker or you're not.
*April 6, 2010*

**math**

A recent poll of 500 randomly chosen voters concludes that 60% of the voters prefer this canidate. Determine the probability that the candidate will get less than 56% of the votes. How do I do this type of question? i have a few to figure out.
*April 4, 2010*

**physics**

There is no difference in the period because it the period is not dependent on mass or amplitude. (I just had this same problem on webassign)
*March 31, 2010*

**staticitics**

First 7"s = 1 The second 7's = 5.75
*March 30, 2010*

**math 3Probability**

Could you please explain how to do this question. Suppose that a certain candidate is running in a city election. A recent poll of 500 randomly chosen voters concludes that 60% of the voters prefer this candidate. Determine the probability that the candidate will get less than...
*March 29, 2010*

**Probability**

Could you please explain how to do this question. Suppose that a certain candidate is running in a city election. A recent poll of 500 randomly chosen voters concludes that 60% of the voters prefer this candidate. Determine the probability that the candidate will get less than...
*March 28, 2010*

**Math 30**

A popular game show begins with the host reading a question to the contestants. One question involves putting 4 events (A, B, C, and D) in chronological order. What is the probability that the contestant gets the question correct is he or she just guesses? Recently I asked ...
*March 25, 2010*

**Probability**

A popular game show begins with the host reading a question to the contestants. One question involves putting four events (A, B, C and D) in chronological order. What is the probability that the contestant gets the question correct if he or she just guesses?
*March 24, 2010*

**math**

5m-11 5m=11 m=11/5 2m + 3 2m=-3 m=-3/2
*March 23, 2010*

**algebra**

slope intercept form is y= mx + b So get the y on one side -2x=-1y-6 becomes y=2x-6 and 3x + 3y=-18 becomes 3y=-3x-18 and then y=-1x-6
*March 23, 2010*

**help me**

I'm brown, I have two eyes and no ears. I'm brown on the outside and white on the inside.. What am I?
*March 23, 2010*

**Math 30**

The first 3 terms in one row in the Pascals triangle are 1, 10, and 45. Determine the next two terms in this row. Did I do this right.10C4=210 and 10C5=252
*March 22, 2010*

**Math 30**

Determine the constant term in the expansion of (x+2)^9. would it be 2^9?
*March 22, 2010*

**Business law**

Fess, a farmer, contracted to sell his cabbage crop to Chris C. for $475, the contract being made one week before the harvest. The contract was oral. After the harvest Fess quickly sold the crop to Don Trump instead for $700 when Trump called and offered to pay immediately ...
*March 22, 2010*

**Trig 30**

How would I find the general solution for x/2=2pi/3 and x/2=pi/3?
*March 19, 2010*

**Math (FST Exponential & Logarithm) **

What is the amount and type of the growth factor of the model: y=3(1.04)^x Determine the equation for the asymptote: y=2+ log(x-3) For the second question, I don't even have an idea what is to be determined.
*March 17, 2010*

**math 30**

Describe how the graph of y=f(-2x+6)+7 can be obtained from the graph y=f(x)
*March 17, 2010*

**math 30**

I need to write 4x^2 - y^2 -8x -4y + 16 = 0 in standard form and I keep getting it wrong. Could someone please help me. Thanks
*March 16, 2010*

**math 30**

Help please i need to write 4x^2 -y^2 -8x -4y +16 =0 in standard form.4x^2 -8x - y^2 -4y=-16 so 4(x^2 -2x +1)-(y^2-4y+4= -16 -4 +4 so 4(x-1)^2/-16 -(y-2)^2/-16 =1 so (x-1)^2/-4 -(y-2)^2/-16 so if I multiply everything by -1 it will get rid of my (-) on the left and I'm ...
*March 16, 2010*

**conics**

The graph of y=x^2 is reflected in the x-axis, then stretched vertically by a factor of 2, and then translated 3 units to the left and 1 unit down. I need to write the equation of this parabola in standard and general form. I have 4 other questions so could someone please show...
*March 15, 2010*

**College Physics**

A 3400 kg open railroad car coasts along with a constant speed of 7.50 m/s on a level track. Snow begins to fall vertically and fills the car at a rate of 5.10 kg/min.Ignoring friction with the tracks, what is the speed of the car after 85.0 min ?
*March 14, 2010*

**math 12 logarithms**

I need to express log base 5 sqrt5 =0.5 in exponential form. Would it be 5^0.5 =sqrt5. I'm not really understanding this unit very well. Any explaination would be greatly appreciated.
*March 11, 2010*

**math 12 logarithms**

How would I go about proving 1/log a +1/log a = 1/log base 100 a. Any help would be greatly appreciate. Thanks
*March 11, 2010*

**trig **

I don't understand how to do this type of question? If 9cos^2 theta +3cos theta=0, where 90 degrees <theta<180 degrees, what is the value of theta, correct to the nearest tenth of a degree. Could someone please explain. Thanks
*March 10, 2010*

**trig **

Solve the following for x, where 0 < x < 2 pi. 2 cos^2 x + cos x = 1
*March 8, 2010*

**Trigonometry**

Where does the graph of y = tan theta intersects the graph of y = -1.
*March 7, 2010*

**Trigonometry**

Where does the graph of y = tan theta intersect the graph of y = -1 where n is any integer?
*March 7, 2010*

**trig math 30**

Find the exact value of cos 8 degrees cos 38 degrees + sin 8 degrees sin 38 degrees
*March 6, 2010*

**math 30 Trig**

If sin theta = -7/8, then the value of 1/cot theta in the interval 3pi/2 <theta <2pi is:
*March 6, 2010*

**math 30 Trig**

A central angle subtends an arc of 35 cm. If the radius of the circle is 12 cm, what is the measure of the central angle?
*March 6, 2010*

**College Physics**

A projectile is fired at an upward angle of 55.0 degrees from the top of a 230m cliff with a speed of 180m/s.What will be its speed when it strikes the ground below? (Use conservation of energy.)
*February 25, 2010*

**Math**

If Angel plants the same number of flowers in each of 5 rows, he will have none left over. If he plants 1 in the first row and then 1 more in each row than he did in the previous row, he will plant flowers in only 4 rows. how many flowers does he have?
*February 18, 2010*

**College Physics**

What will a spring scale read for the weight of a 73 kg woman in an elevator that moves upward with constant speed of 5.4 m/s?
*February 16, 2010*

**PSY**

what things can a LEADER do to help prevent or "break through" groupthink?
*February 12, 2010*

**college**

what things can a LEADER do to help prevent or "break through" groupthink?
*February 12, 2010*

**PSy**

Sorry
*February 12, 2010*

**College**

In what ways and in what situations can increased diversity increase NEGATIVE conflicts and impede team effectiveness? What other factors can interfere with productive team experiences?
*February 12, 2010*

**College Physics**

COrrection on the problem. Its suppose to be 24 degree incline. I did mu= 1/2tan(24degrees)= .222 .222 was not the right answer for some reason. Can you help please?
*February 11, 2010*

**College Physics**

A child slides down a slide with a 24 incline, and at the bottom her speed is precisely half what it would have been if the slide had been frictionless.Calculate the coefficient of kinetic friction between the slide and the child.
*February 11, 2010*

**History**

Compare the interaction between the Japanese, New World and Europeans. How did the Europeans treat the people of Japan and the New World? Who was treated better? Why?
*February 11, 2010*

**8th grade science**

What is a vertical section of the ocean from it's surface to the ocean floor called?
*February 4, 2010*

**science**

which causes winter snow and summer rain at higher latitude?
*January 21, 2010*

**math**

the area or peur is 3 4/25 times the area of purgatory the area of purgatory is 157000 what is the area of peur
*January 14, 2010*

**Algebra**

Let U = {u, n, i, t, e} A = {n, i, t} B = {n, e} C = {u, n, i, t, e} D = {u, e} Find each of the following: (a) A ¡ä B (b) C ¡å D (c) ¡ÂD¡Â (d) ¡ÂA ¡å D¡Â (e) B ¡ä ¡ÂC&...
*January 11, 2010*

**Algebra**

How many elements are in the Cartesian product D x E?
*January 11, 2010*

**Algebra**

List all the subsets of {m, a, t, h}.
*January 11, 2010*

**child development and human behavior**

Cognition refers to what.
*December 28, 2009*

**social studies psychology**

Observing what a person does under carefully controlled circumstances is a main feature of what? 1.the Thematic Apperception Test 2.behavioral assessment 3.Rorschach methods 4.the MMPI-2
*December 21, 2009*

**psychology**

In psychology, the study of personality focuses on what? change. stability. external factors. learned factors.
*December 20, 2009*

**Math**

The computer club invested $2200, part at 4.5% interest and the rest at 7%. The total annuel interest earned was $144. How much was invested at each rate?
*December 17, 2009*

**physics**

The driver of a 1024 kg truck traveling 32.6 m/s North on I-77 has to make a sudden stop. If it requires a distance of 57.1 m for the truck to stop, use conservation of energy to find the net force acting on the truck.
*December 9, 2009*

**physics**

A softball (350g) is thrown with an initial speed of 23 m/s straight upward. What is the maximum potential energy the softball can have?
*December 9, 2009*

**physical science**

How much time should be allowed for a 392-km car trip if the car will be traveling at 120 km/h?
*December 4, 2009*

**Physics**

What is the potential energy of a 3kg ball that is on the ground. -do i do mgh? (9.8)(3kg) ?
*November 22, 2009*

**Science**

1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the negative y-axis.Use graphical methods to find the...
*November 19, 2009*

**stats**

An automobile repair shop has determined that the average service time on an automobile is 2 hours with a standard deviation of 32 minutes. A random sample of 64 out of 400 services is selected. What is the probability that this sample will have a mean service time greater ...
*November 11, 2009*

**statistics**

In a local university,40% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. What is the probability that the sample proportion (the proportion living in the dormitories) is between 0.30 and 0.50?
*November 11, 2009*

**math**

A hammer thrower releases the hammer after reaching an angular velocity of 14.9 rad/s. If the hammer is 1.6m from the shoulder joint, what is the linear velocity at release?
*November 4, 2009*

**english**

Hi....I'm having trouble finding a song that shares a connection or a relationship to Hamlets "to be or not to be" sililoquy. Do you have any suggestions? Thankyou
*November 4, 2009*

**math**

Mrs leuenberger ran the same maraton but since her husband was hunting and she couldnt find a babysitter she had to carry her two daughter in her arms They weigh 40 pounds and 55 pounds Mrs Leuenberger weighs 145 pounds How much work pound did Mrs Leuenberger expend if she ran...
*October 25, 2009*

**Science**

Matings between hairless & normal dogs always produce hairless & normal offspring in a 1:1 ratio. In matings of two hairless dogs, hairless & normal dogs are always produced in a 2:1 ratio. How can these results be explained?
*October 12, 2009*

**physics**

A magnetic field is perpendicular to the plane of a single turn circular coil. The magnitude of the field is changing so that the emf of 0.80 V and a current of 3.2 A are induced in the coil. The wire is then re-formed into a single turn square coil, which is used in the same ...
*October 8, 2009*

**Chemistry**

Determine the mass of each reactant needed to give 1.5 mol of HNO3 NO2(g)+H2O(l)---> HNO2(aq)+HNO3(aq)
*October 7, 2009*

**economics case analysis**

thank you so much for you've got the point. maybe i am noy familiar with the economic terms my teacher told me, so i have no idear how to finish it. you are so kind to enlight me! thabk you a million!
*October 4, 2009*

**Science**

How long would a day be in seconds if the Earth were rotating so fast that objects at the equator were apparently weightless?
*October 2, 2009*

**5th grade**

estimate 5,602 - 2,344
*September 29, 2009*

**biology**

what is heterotrophic Hypothesis? please explain well that i can understand because i am doing a research paper on it and i have no clue what it means
*September 28, 2009*

**Accounting**

Please prepare and post your response to the following question no later than Wednesday of this week: A major network is launching a reality program called The Accountant. A group of recent accounting graduates will be competing for a spot in a national accounting firm. What ...
*September 2, 2009*

**religion**

Gnostic claim Jesus could not have been human because all humans are evil what would the christian response be
*August 30, 2009*

**Ethics**

Which is true: most tribes operate gambling ventures or most tribes do not?
*August 16, 2009*

**business**

In what ways are expository essays similar to business communications?
*July 23, 2009*

**math**

At what rate would a 120-pound person burn calories while bicycling at 12 mi/h?
*July 3, 2009*

**math**

Sonia harvested 34 bushels of beans per acre from 44 acres in May and 38 bushels of beans per acre from 41 acres in June How many bushels of beans did Sonia harvest?
*June 28, 2009*

**math**

Eduando owned 6/7 of a family business. he sold 1/5 of the business to his son. What portion of the business does he still own?
*June 21, 2009*

**math**

Write the following as a common fraction or mixed number. 5.679
*June 21, 2009*

**math**

Write the following as a common fraction or mixed number. Write your answer in lowest terms. 0.44
*June 21, 2009*

**math**

Rochelle purchased an appliance that cost $815.56 with interest included. She paid $250 as a down payment and agreed to pay the remainder in 18 monthly payments. What amount will she be paying per month?
*June 21, 2009*

**math**

Shella practiced 1-1/2 hours Monday, 3-3/4 hours Tuesday, and 2-1/2 hours Wednesday. What is the total number of hours that she practiced?
*June 21, 2009*

**organic chemistry**

I can't figure out the answer please help. 1. Which of the following would you expect to have the weakest C-X bond? A)CH3Cl B)CH3CH2Br C)CH3F D)CH3CH2I E)(CH3)2CHBr 2. Which of the following haloalkanes would not undergo the reaction below? R-X + CH3S^ ----> CH3SR + X...
*June 18, 2009*

**french help please!**

woah u guys seem like best friends
*June 9, 2009*

**Chemistry**

WHat is the bond identified as if two covantley bonded atoms are identical?
*May 30, 2009*

**algebra**

1. y=3x^2+x-2 2. find an equation that has -5/2 and 6 as solutions
*May 15, 2009*

**CHEM**

For the reaction of HNO3 is this the reaction? Is the water liquid? 2HNO3(s)> 2NO2(g)+H2O(l)+ 1/2O2(g)
*April 30, 2009*

**Math**

math
*April 27, 2009*

**Math**

i want help
*April 27, 2009*

**Physics**

Three solid cylinder rods roll down a hill with the same linear speed. Rod R1 has a 1inch diamter, Rod R2 has a 2inch diameter, and Rod R3 has a 3inch diameter. They all have the same masses. Rank in order the rotational energies of R!, R2, and R3. a. E1 > E2 > E3 b. E3...
*April 22, 2009*

**Physics**

Three solid cylinder rods roll down a hill with the same linear speed. Rod R1 has a 1inch diamter, Rod R2 has a 2inch diameter, and Rod R3 has a 3inch diameter. They all have the same masses. Rank in order the rotational energies of R!, R2, and R3. a. E1 > E2 > E3 b. E3...
*April 22, 2009*

**PHYSICS**

A hollow tube (I = MR2) rolls without slipping along the surface. The ratio of its translational kinetic energy to its rotational kinetic energy is a. 1 b. 2 c. 3 d. 1/2 e. 1/3 I say A becasue both add up to get the total kinetic energy.
*April 22, 2009*