Roger

This page lists questions and answers that were posted by visitors named Roger.

Questions

The following questions were asked by visitors named Roger.

Bob, I did eventually find a factorization for the expression x^4 + 2x^3 + 4x^2 + 8x +16 The original problem was probably something like x^5-32=0. I think the poster divided (x-2) into it to get the expression above. This of course is the 5th roots of 32...

19 years ago

Is it the same 'somethings' such that the sum and product = 97? Are you supposed to factor 97 as the product of integers? Help us out here a little.

19 years ago

How come we have this wonderful thing called the internet and resources such as Google, etc, and people still ask us to do their searches for them?? I understand that practically all of these are relatively recent phenomena (within the past 10yrs or so),...

19 years ago

Any non-price determinant will have an effect on demand. I really don't know how computer engineers could increase the interest in pc's, but it's not a price determinant and it increases demand. I'm not really sure what the effect on supply is. I think it...

19 years ago

The coefficient in front of the variable x gives the slope. The first two have a slope of 5, but different y intercepts. They're parallel to each other. The third and fourth both have a slope of 1 and are less steep than the first two. They have different...

19 years ago

Hey, can somebody here help me with this stuff? 1) Why are radioisotopes with long half-lives not administered internally in medical procedures? 2) What % of C-14 would you expect a piece of 34000 year-old fossilized bone from a mastodon to have when comp...

18 years ago

Suppose that, in the future, observations with some new telescope reveal a planet about 16 AU from a star whose mass is the same as our sun's mass. How long does it take the planet to orbit the star? Use Keplers law. You know at 1AU the period is 365 days...

18 years ago

What is Sapir-Whorf hypothesis. http://en.wikipedia.org/wiki/Sapir-Whorf_hypothesis =)

18 years ago

Float Management: Merrill Lynch increased in float by mailing checks drawn on West Coast banks to customers in the east and checks drawn on east coast banks to customers in the west. A subsequent class action suit agains Merrill Lynch revealed that in 28...

18 years ago

How many seconds longer is 2 percent of an hour than 30 percent of a minute? is it 30 seconds

17 years ago

Find the sum of all prime numbers between 1 and 100 that are simultaneously 1 greater than a multiple of 4 and 1 less than a multiple of 5. (a) 118 (b) 137 (c) 158 (d) 187 (e) 245 The answer is D right?

17 years ago

Hello, i need help doing a proof, im pretty sure on how to do it but not that way my teacher wants it. He wants it in a chart form by taking splitting up both side. i have to show that |a-b|=|b-a|

17 years ago

I have an AP US history test on Tuesday and I would like practice AP questions to help prepare for the test but I don't know any of the websites. Could you give me a few to go to please? Thanks!

16 years ago

I am doing an ap biology lab on plant photosynthesis. It's specifically lab # 4 on plant pigments and photosynthesis and it's on question # 8 on Exercise 4B: Photosynthesis/ The Light Reaction. Identify the function of each of the cuvettes. I already have...

16 years ago

I have an AP Psychology test tomorrow and I would like practice AP questions but I don't know any sites.

16 years ago

What is the electron configuration for Be 2+ ions? 1) 1 3) 2-1 2)2 4) 2-2 I also need an explanation for the correct and incorrect answers because I am confused by this problem.

16 years ago

I have a quiz on genetics on friday in AP Biology and I would like some sites with good ap biology questions on them. I don't know any of them which I could go to.

16 years ago

240 pounds of fertilizer/6 lawns. What is the rate?

16 years ago

According to Boyle's law, the pressure p of a compressed gas is inversely proportional to the volume, v. If a pressure of 20 pounds per square inch exists when the volume of the gas is 500 cubic inches, what is the pressure when the gas is compressed to 4...

16 years ago

Does anyone know just how effective advertising a business or service is in a free publication that is mailed out to just anyone and left at free pick up points around a geographical area?

16 years ago

(3^3)^2 _________ 3

16 years ago

The amount of an investment of P dollars for t years at simple interest rate r is given by A= P+Prt a) Rewrite this formula by factoring out the greatest common factor on the right-hand side. b) Find A if $8300 is invested for 3 years at a simple interest...

16 years ago

A child's body i approximatly 75% water. About how many pounds of a 60 pound child's weiht is water?

16 years ago

What numbr is 45% of 246?

16 years ago

If a quadrilateral wxyz is similar to quadrilaterl lmnp how do I find the value x and y?

16 years ago

if I know the volume of something how do I find out what the length width and height are?

15 years ago

Claire's old aquarium has a volume of 27,000cm3. She bought a new aquarium in which the length and width are 5 times those of her old tank. What is the volume of Claire's new aquarium?

15 years ago

1. Evaluate each. Write the answer in simplified radical form: __ __ __ i) ã3 ∙ 3ã3 ∙ 4ã3 _________________ ii) ãx 3ãy 5ã ________ 4ãz2(Z squared)

15 years ago

Can someone help me? I am try to make a correct sentence with this. With machetes, the explorers cut their way through the tall grasses to the edge of the canyon. Then they began to lay out the tapes for the survey.

15 years ago

I need help. I need to revise any run-on sentences. The first one is this. Not sure if these are correct. Death Valley National Monument located in Southern California and Nevada, is one of the hottest place on earth. Temperatures there have soared as hig...

15 years ago

I need help with these, I have to edit the following sentences to eliminate problems with subject-verb agreement. 1. Measles is a contagious childhood disease. 2. Adorning a shelf in the lab are a Vietnamese figurine, a set of Korean clay gods, and an Ame...

15 years ago

Can you please help me? I have put in some that I think is right but it doesn't look right. The direction goes as follows; Edit the following sentences to correct errors in pronoun reference. In some cases you will need decide on an antecedent that the pr...

15 years ago

I need some help again with these.I have to correct faulty parallelism in the following sentences. I think I have corrected a couple but some I need help on. 1. Activities on Wednesday afternoons include fishing trips, dance lessons, and computers. 2. Arr...

15 years ago

what is the decimal notation of 23 over 8

15 years ago

I have to edit the following sentences to untangle mixed constructions. Here is the list of five and my corrections below them. 1. Early diagnosis of prostate cancer is often curable. 2. Depending on our method of travel and our destination determines how...

15 years ago

ok, i need to write an expression equal to 10 and the numbers i need to use are 5,8,9,7 and i need to use +, /, + can anyone help me?

15 years ago

1. A typical virus is a packet of protein and DNA or RNA and can be spherical in shape. The influenza A virus is a spherical virus that has a diameter of 85nm. If the volume of saliva coughed on to you by a friend with the flu is .010cm^3 and 10^-9 of tha...

15 years ago

The following function notation was given for Barking Lot Grooming: b(5)=28. What does the 5 represent? What does the 28 represent?

15 years ago

Help! A size 36 shoe in France is size 3.5 in England. A function that converts shoe sizes in France to those in England is . A size 6 shoe in the United States is size 3.5 in England. A function that converts shoe sizes in England to those in the United...

15 years ago

Help! Write the equation of the function that has a graph the shape of , vertically shrunk by a factor of 1/4 and shifted right 6 units. Write the equation of the function that has a graph the shape of y = „ x„ , reflected about the x-axis and shifted dow...

15 years ago

Write the equation of the function that has a graph the shape of y=/x/ ,reflected about the x-axis and shifted down 1 unit.

15 years ago

Write the equation of the function that has a graph the shape of y=3ãx, vertically shrunk by a factor of 1/4 and shifted right 6 units.

15 years ago

John wants to build a corral next to his barn. He has 300 feet of fencing to enclose three sides of his rectangular yard. a. What is the largest area that can be enclosed? b. What dimensions will result in the largest yard?

15 years ago

1/4=3-2x-1/x+2..so far i have 8x^2-19x+4=0 do i use quadratic formula to solve the rest of the way?

15 years ago

Write the polynomial function as a product of linear factors. 6x^4-7x^3-10x^2+17x-6

15 years ago

The profit from selling x pieces of handmade jewelry can be modeled by the equation P(x)=-x^2+130x-3000. What is the range of profitable orders (P(x)>0)?

15 years ago

Correct the error in this equation: 6(2y+6)=4(9+3y) 12y+36=36+12y 12y=12y 0=0 y=0

15 years ago

Solve: 8w-8-6w=4w-7

15 years ago

I have to write an essay for english here is the topic: Identify the protagonist: The critic Randal Stewart has this is say about Hester and Dimmesdale: ..."But hester is not the protagonist,the chief actor,and the tragedy of the scarlet letter is not her...

15 years ago

A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 795 m/s. The barrel is pointed directly at the center of the bull's-eye, but the bullet strikes the target 0.042 m below the center. What is the horizontal distance between the...

15 years ago

what would happen to the consumer spending and on the unempolymentrate if the U.S government were to increase personal income tax rates

15 years ago

What is the inverse of the function y=3x

14 years ago

Complete the following for f(x)=2^(x+1)-3 Range: Coordinates of y-intercept:

14 years ago

Antitrust authorities at the Federal Trade Commission are reviewing your company’s recent merger with a rival firm. The FTC is concerned that the merger of two rival firms in the same market will increase market power. A hearing is scheduled for your comp...

14 years ago

rhymes and plural and possessive nouns for the jumps of lambs

14 years ago

Please help! x-2y+z=7 2x+y-z=0 3x+2y-2z=-2 a. Solve the above system of equations using Gaussian Elimination or Gauss-Jordan Elimination. You must show row operations. b. Solve the above system of equations using Cramer's Rule.

14 years ago

Balanced Chemical Equation: 1 N204(l) + 2 N2H4(l) --> 3 N2(g) + 4 H20(g) If you start with: 5.0 x 10^4g hydrazine (N2H4) "in the tank": 1) How many moles of nitrogen can be created (assuming 100% yielded)? 2) How many moles of water can be produced? 3) Wh...

14 years ago

To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette yielded m...

14 years ago

Please Help. How long, to the nearest tenth of a year, will it take $12,500 to grow to $20,000 at 6.5% annual interest compounded quartely? (Use the formula for compound interest with n compoundings per year to solve for t.)

14 years ago

The voltaic cell described by the cell notation has a standard emf (electromotive force) of 0.94 V. Calculate the value (J) for the maximum electrical work that the cell can do under standard conditions. Round your answer to 3 significant figures. Pt(s) /...

14 years ago

The electrochemical cell described by the balanced chemical equation has a standard emf (electromotive force) of -0.35 V. Calculate the value (J) for the Wmax that the cell can do under standard conditions. Round your answer to 3 significant figures. 2MnO...

14 years ago

Express the sum below using summation notation. Use 1 as the lower limits of summation and i for the index of summation. 1/3+2/4+3/5+...+18/20

14 years ago

A sample of phosphorus of mass 3.654 g reacts with dichlorine to form 16.20 g of a molecular compound. What is the empirical formula of this compound?

14 years ago

How many moles of NaOH would you need to add to 800 ml of a 0.4 M H2CO3 solution in order to bring the pH of the solution to 10.5?

14 years ago

Because of a recession, the value of a new house depreciated 10% each year for 3 yr in a row. Then, for the next 3 yr, the value of the house increased 10% each year. Did the value of the house increase or decrease after 6 yr? Explain. I feel that the hou...

14 years ago

An environmental restoration project requires that you enlarge part of the map to a scale of 1 inch to 1000 feet. Calculate the factor by which it needs to be enlarged.

14 years ago

Calculate the distance (in km)that Larry runs if he maintains an average speed of 8km/hr for 45 minutes.

14 years ago

Syllogisms-Which are valid? Correct the invalid ones. Brain Surgeons save lives. Marie is a brain surgeon. Therefore, Marie saves lives. An English Bulldog is a dog. All dogs have four legs. Therefore, English Bulldogs have four legs. All humans grow. All...

14 years ago

Describe any difference between the amounts of water that would percolate downward to the saturated zone beneath a flat meadow in northern New York and a rocky hillside in southern Nevada. Discuss the factors that control the amount of percolation in each...

14 years ago

Contrast the principle difference between executive pay and non-executive pay, including a discussion on controversies associated with the growing disparity between executive and non-executive compensation packages.

14 years ago

3 questions if you can help me. 1. Calculate the number of subsets and the number of proper subsets for the set. {x|x is a day of the week} 2. Let U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}. List the elemen...

14 years ago

I'm completely lost, need help to find which two are true: A A standard ID-1 payment card has a CVV1 code printed on it to assist with ‘card-not-present’ transactions. B A four-digit decimal PIN (commonly used for payment cards) can provide a wider range...

14 years ago

is it true or false A fixed length hash value of 128 bits is less collision resistant than a fixed length hash value of 512 bits

14 years ago

can please somebody check my answer: Q. A tuning fork produces a sound that has a wavelength of 136 centimetres. What is the frequency of the tuning fork? (Take the speed of sound to be 340 metres per second.) A. f= velocity/wavelength f= 340/1.36 f=250Hz

14 years ago

is it true that When two identical waveforms of the same frequency are added together, the result will be a waveform with a wavelength that is twice that of the individual waveforms.

14 years ago

can please someone check my answer. which 2 statements are true A)Morse code, Huffman coding and run-length encoding are all examples of lossy compression. B)Lossless compression uses perceptual compression techniques to ensure that all the data can be re...

14 years ago

solve 5y+3y is less then or equal to-72

14 years ago

Find the average rate of change on the interval [-6,3] of the function h(x)=x^2-4x+7. A. -7 B. 7 C. 1 D. 13 E. -5

14 years ago

The value V of a machine t years after it is purchased is inversely proportional to the square root of t+2. The initial value of the machine is $10,000. Find the rate of depreciation when t=5 . Round your answer to two decimal places. A. -381.80 PER YEAR...

14 years ago

Use the demand function X=325(1-(6p/7p+4)) to find the rate of change in the demand x for the given price p=$5.00. Round your answer to two decimal places. A. 5.13 UNITS PER DOLLAR B. -0.85 UNITS PER DOLLAR C. 0.85 UNITS PER DOLLAR D. 1.35 UNITS PER DOLLA...

14 years ago

For the given equation, find the slope of the tangent to the curve at the point (-4,2). y^2+8y+x^2+8x-4=0 A. -1.50 B. -0.50 C. -2.00 D. 0.00 E. UNDEFINED

14 years ago

Find lim f(x) for f(x)=Ix-3I/x-3 x->3

14 years ago

Find the derivative of the given function. Simplify and express the answer using positive exponents only. y= ((9x^2-4)^3/7x^2+4)

14 years ago

Describe the interval(s)on which the function f(x)=(x-11/x^2-121) is continuous.

14 years ago

Find the points of discontinuity on [-3,5] for the function f(x)=[[x-1]], where the double bracket indicates the greatest integer function.

14 years ago

Determine the following limit. lim (1/x-3) x->3

14 years ago

Suppose the function G(t) represents a test grade (out of 100 points) as a function of hours studied. If G(t)=-0.046t^3+0.915t^2+38.005 points, what is (dG/dt)when t=4? Round your answer to the nearest point per hour. a. 50 points per hour b. 3 points per...

14 years ago

a) Sour milk pancakes do not taste sour when sour milk and baking soda are substituted for sweet milk and baking powder . Explain. b) How would these pancakes taste if sour milk and baking powder are used? c) How would they taste if sweet milk and baking...

13 years ago

Last year, Jasper Company earned operating income of $139,600 with a contribution margin ratio of 0.3. Actual revenue was $237,000. Calculate the total fixed cost. Round your answer to the nearest dollar.

13 years ago

A place kicker must kick a football from a point 25.5 m from the goal, and must clear a crossbar that is 3 m off the ground. When kicked the ball leaves the ground with a speed of 21.9 m/s at an angle of 54o to the horizontal. By how much does the ball cl...

13 years ago

Use the definition of absolute value to solve the following equation. x-1/3=1/2x+1/6

13 years ago

Answers

The following answers were posted by visitors named Roger.

sorry but i have seen these sites. would u happen to know any others?

16 years ago

these are really good sites but I just wanted ones with practice review questions for my test

16 years ago

thanks but how did you get 1000 by dividing k by 500?

16 years ago

thank you so much! i really appreciate it!

16 years ago

Not sure if I should put a comma after canyon and then ad the word and or could it be correct.

15 years ago

Thank You!!!

15 years ago

I need help. I need to revise any run-on sentences. The first on is this. Death Valley National Monument located in Southern California and Nevada, is one of the hottest place on earth. Temperatures there have soared as high as 134 degrees Fahrenheit. Ana...

15 years ago

What about this Subatomic physics is filled with strange and marvelous particles: tiny bodies of matter that shiver, wobble, pulse, and flatten to no thickness at all.

15 years ago

So #3 would be determines not determine?

15 years ago

The reason I ask is because MS Word has determines underlined and the correction is determine.

15 years ago

ok thank you

15 years ago

My professor counted that one wrong, I tried to argue my case but with no luck. He stated that it is based on factors and not one.

15 years ago

In 2, they would be the people I guess.

15 years ago

Ok, I see it know, your awesome!

15 years ago

I am having a problem with #4 4)Because of Paul Robeson's outspoken attitude toward fascism, he was labeled a Communist. Should'nt it be 4)Because of his outspoken attitude toward fascism, Paul Robeson was labeled a Communist.

15 years ago

But I though that the pronoun he cannot refer logically to the possessive modifier Paul Robeson's.

15 years ago

Is the answer to #4, Because of his outspoken attitude toward fascism, Paul Robeson was labeled a Communist.

15 years ago

#1 Computer lessons? #4 from the North Shore? #5 included?

A size 36 shoe in France is size 3.5 in England. A function that converts shoe sizes in France to those in England is? A size 6 shoe in the United States is size 3.5 in England. A function that converts shoe sizes in England to those in the United States...

15 years ago

Write the equation of the function that has a graph the shape of y=ã3:(), vertically shrunk by a factor of 1/4th and shifted right 6 units. Write the equation of the function that has a graph the shape of y=„ x„ ,reflected about the x-axis and shifted do...

for b i have 2 possible answers Prices are dependent on marginal costs, therefore prices will also increase. or is it that The price charged will decrease since with short-run profits, more companies enter the market to compete and the extra competition d...

14 years ago

how do i find molar mass?

14 years ago

Still not sure what the answer is.

14 years ago

I don't understand when you say divide by the smallest numbers. For instnace, am I supposed to divide 3.546 (P) by 3.546 again?

14 years ago

P: 3.654 g P x (1 mol/30.97 g P) = .12 mol Cl: 12.546 g Cl x (1 mol/35.45 g Cl) = .35 mol Therefore, the empirical formula will be PCl3? Is this correct?

14 years ago

1:24,000

14 years ago

Is it undefined or just 0.00?

14 years ago

ok, thanks.

14 years ago

Can I email you some more of my homework problems instead?

14 years ago

not sure if i understand you when you say from the left and right?

14 years ago

WHY ARE YOU DELETING MY POSTS?

14 years ago

Thank you Visoth I really appreciate your help.

13 years ago

Thank you Steve I really appreciate your help.

13 years ago

12 years ago

the answer to A is 8X10^/17. You get this by using the work formula, which is the same as change in KE. I don't know how to get B

12 years ago

I am sooty I made a mistake with the question it is 187 not 186 and I still don't understand where you get 7 and 9 from

12 years ago

Is the cost of a random orange discrete or continuous?

11 years ago

a rectangular parking lot has a length that is 6 yards greater than the width. The area of the parking lot is 160 square yards. find the length and the width.

11 years ago

I e-mailed him yesterday. This is the correct answer.

11 years ago

Change a to 2a in the formula, and then subtract a from the end to equalize. This resolves the 1/2 distance on the first bounce. s8=(2a(1-r^n)/(1-r))-a

9 years ago

Find the area and the perimeter of this figure. 5 in. Square.

8 years ago

Part A using formula: 1/2(0+.7)*(174s)=60.9 for first answer idk the background but thats is the answer......174 is from converting 2.9 to seconds 1 minute=60 seconds 2 minutes= another 60 seconds .9 minutes=54 seconds add the numbers up you get 174 for B...

8 years ago

what is 2/6 x 1/2?

8 years ago

i meant what is 2/3 x 1/2 remember to simplify to lowest term

8 years ago

$222.00

7 years ago

$222.00 Is the answer correct

7 years ago

mass * distance needs to be equivalent, 18x = 36*.45 = .9m

7 years ago

thanks for the hint. why not the full answer

5 years ago

Really need help on this question urgently for an assignment

4 years ago

For those who do not believe, no proof is possible. For those who do believe, no proof is necessary. The medical bureau however, has recorded some rather astounding sudden changes in sick people which can not be explained as delusions or faith healing fak...

4 years ago

Hey, I know this is 6 years later but, how do you get 9?