Saturday

February 13, 2016
Total # Posts: 756

**calculus **

Let f(x)=4cos^5x. Find f'(x)
*October 21, 2010*

**calculus **

If f(x)=(x^2+3x+2)^3, find f'(x).
*October 21, 2010*

**calculas **

the answer is not correct. I input f'= 1/2 (7t^-5)^-1/2 * (-5*7t^-6)and its incorrect. Did I input the wrong answer?
*October 21, 2010*

**calculas **

If f(t) = square root of 7/t^5. Find f'(x) and f'(2)
*October 21, 2010*

**calculas **

i did however my answer is still wrong. can you show me step by step. this way i can see what i am doing wrong. thank you
*October 21, 2010*

**calculas **

If a ball is thrown vertically upward from the roof of 48 foot building with a velocity of 80 ft/sec, its height after t seconds is s(t)=48+80t–16t2. What is the maximum height the ball reaches? (my answer is 148). What is the velocity of the ball when it hits the ground...
*October 21, 2010*

**math**

thank you
*October 21, 2010*

**algebra**

33x+38x=284 71x=284 71x/71=284/71 x=284/71 x=4
*October 17, 2010*

**Finance**

Your best taxable investment opportunity has an EAR of 4%. You best tax free investment opportunity has an EAR of 3%. If your tax rate is 30%, which opportunity provides the higher after tax interest rate?
*October 13, 2010*

**MEDICAL BILLING/CODING**

DO ANYONE HAVE THE LAYOUT FOR INTERPERSONAL COMMUNICATION GRADED PROJECT I AM STUCK NEED IDEAS
*October 9, 2010*

**Social Studies**

1-a,2-d,3-b,4-c,5-e
*October 7, 2010*

**english**

Please correct the following sentence for a daily oral language question: we will see a play called cinderella on tuesday I do not agree with how it was graded.
*October 5, 2010*

**chem**

Determine whether a solid forms when solution containing the following salts are mixed. If so, write the ionic equation and the net ionic equation. a) NA3PO4 and AgNO3 B) K2SO4 and K2S c) Pb(NO3)2 and Na2CO3 D) BaCl2 and KOH Share: by email on facebook on twitter
*October 3, 2010*

**Physics**

Two rocks are thrown off the edge of a cliff that is 15.0 m above the ground. The first rock is thrown upward, at a velocity of +12.0 m/s. The second is thrown downward, at a velocity of −12.0 m/s. Ignore air resistance. Determine (a) how long it takes the first rock to ...
*September 12, 2010*

**algebra2**

How to put this in a quadratic equation ax squared + bx + c = 0
*September 8, 2010*

**Calculus**

The population of fish in a lake before mating season is F. During the mating season, the population grows by 30% and the new population is N. Write an expression for N is terms of F.
*September 7, 2010*

**algebra**

2x-5(X+3)> -20
*August 25, 2010*

**algebra**

2x-5(x=3)>-20
*August 25, 2010*

**Biology**

When the electron moves back to lower energy levels in an electron transport chain, energy is a) stored or b) released c)converted to matter d)used to make O2 I'm not sure how to answer this cause isn't it stored as potential energy of H20 and just before the electron ...
*August 11, 2010*

**chemistry**

Compare the chemical composition of methane and ethanol to carbon dioxide. Which one can be said to be the complete oxidation of glucose? I thought is was methane but I got it wrong can you explain please.
*August 4, 2010*

**psychology**

Sexually active undergraduate women who do not consistently use contraceptives see themselves as less vulnerable to unwanted pregnancy than do other undergraduate women.This best illustrates A: the tyranny of choice B: emotion-focused coping C: the Type A personality D; ...
*July 25, 2010*

**psychology**

Watching the news on TV Mr.Velazco sees pictures of starving children in Africa.That morning he had read about the problem of world hunger.The TV images had a greater impact on him because of: A: belief perserverance B: emotional intelligence C:confirmation bias D: the ...
*July 25, 2010*

**math**

solve for unknown: log9 r=3/2 logG 2=1/3 Can you show me the steps how to solve this problems.Thank yo very much for your time
*July 18, 2010*

**math 116 appendix e**

4. The line y=0.15x +0.79 represents an estimate of the average cost of gasoline each year. The line 0.11x-y=0.85 estimates the price of gasoline in January of each year (“Consumer price index,” 2006). a. Do you expect the lines to be intersecting, parallel, or ...
*July 15, 2010*

**math116 appendix e**

4. The line represents an estimate of the average cost of gasoline each year. The line estimates the price of gasoline in January of each year (“Consumer price index,” 2006). a. Do you expect the lines to be intersecting, parallel, or perpendicular? Explain your ...
*July 15, 2010*

**algebra**

b. You will use 25% of your budget of 118,250.00 to rent business space and pay for utilities. Write an algebraic expression that indicates how much money will be spent on business space and utilities
*July 11, 2010*

**business law**

There is no question that Ruthâ€™s actions breached the duty of reasonable care necessary to park a car on the hill. Furthermore, there is little doubt that Jim has been injured by a roof falling on him and not through his own negligence. Therefore, Jimâ...
*July 6, 2010*

**trig**

okay i think that is right. thank you
*June 6, 2010*

**trig**

no, its not squared. it is (cosx)(2)
*June 6, 2010*

**trig**

solve for x if x is in radians. cos2(x) + 4cos(x) = -3
*June 6, 2010*

**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**

Sorry I know this was 5 years ago, but did you by any chance gets the answer? I have this question right now
*April 15, 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*