Wednesday
April 23, 2014

Posts by Anonymous


Total # Posts: 68,354

Precalculus
1. Here is the frequency table for this distribution (the frequency histogram is not shown): Since I cannot make a table on this forum,the format will be like this: Time(minutes)and Number of telephone calls. 0<t<=5 and 12 telephone calls 5<t<=10 and 4 telephone ca...

English
The burning of trees adds carbon dioxide to the air OR the burning of trees add carbon dioxide to the air?

Biology
What is the basic unit of information in a DNA molecule? In an RNA molecule? In a polypeptide?

chemistry
Five liters of air at -50.0°C are warmed to 100.0°C. What is the new volume if the pressure remains constant?

Physics
A 2 kg brick falls at 5.1 m/s from a height of 6 m above a spring that has a spring constant of 47 N/m. The brick strikes and compresses the spring until it stops moving. Ignore friction effects. How much is the spring compressed by the brick? Assume that there is no Eg after ...

physics
A chemist is working with a 4.50 mol sample of an ideal gas. The internal energy of the sample is known to be 14,900 J. What is the average kinetic energy of each gas molecule?

Math
The data in the table are linear. Use the table to find the slope. x 2 4 6 8 y 1 -2 -5 -8 A. 3/2 B. -3/2 C. -2/3 D. 2/3

Grade 10 English
Ok thank you.

Grade 10 English
Ok. Well in the story it uses a lot of descriptions of places and the people... like imagery....

Grade 10 English
Have you read the story? Im asking how to identify important quotes

Grade 10 English
Well i have read the story... i just asked a question

Grade 10 English
We need to read the story The Stone Carvers I need help with finding important quote s in chapter 1 to 2

chemistry
In standardizing a potassium hydroxide solution, a student finds that 32.60mL of the base solution is needed to titrate 0.5045 grams of KHP to a phenolphthalein end point. In another titration, 26.63mL of this same base solution is needed to titrate 0.2003grams of an unknown s...

chemistry
Calculate the molarity if a Ba(OH)2 solution if a 37.25ml portion of this solution is neutralized by 45.00mL of 1.500M HCl. You will need the balanced reaction

physics
A 15.7 kg block is at rest on a ramp, whose angle is 12.1 degrees from the horizontal. How much Normal Force is acting on the block?

Physics
A 28 kg ball initially at rest rolls down a 159 m hill. When the ball reaches the bottom it is traveling at 31.3 m/s. How much energy is dissipated by friction on the ball?

math
On August 18, Sullivan Company received an invoice in the amount of $6,700, having terms of sale of 4/15 EOM. What is the discount date?

math
Ace Formalwear buys tuxedos from a supplier and has an invoice amount of $27,700. The terms of the sale are 3/20, n/30. If Ace sends a partial payment of $7,400 on the discount date, what is the net amount still due?

math
Solve for the base, rounding answer to hundredths if necessary: 76 is .2% of ______.

math
Jerry King is a server in a restaurant that pays a salary of $22 per day. He also averages tips of 18% of his total gross food orders. Last week he worked 6 days and had total food orders of $2,766.50. What was his total gross pay for the week?

math
Solve the following problem using 6.2%, up to $106,800, for social security tax and 1.45%, no wage limit, for Medicare tax. Kristy Dunaway has biweekly gross earnings of $1,750. What are her total social security and Medicare tax withholdings for a whole year?

math
Thomas Rendell's company pays him a straight 6% commission with a $1,350 drawing account each month. If his sales last month totaled $152,480, how much commission is owed to Thomas?

math
How much combined tax should be withheld from the paycheck of a single employee earning $3,185 per month and claiming zero withholding allowances?

math
Compute Mike's estimated tax payment for the fourth quarter. He is self-employed and he expects to earn $20,640 this year. His estimated income tax rate is 18%. For self-employed persons, social security tax is 12.4% of wages up to $106,800, and Medicare tax is 2.9% of all...

statistics
Which two scales of measurement always require nonparametric procedures and why?

Physics
sorry the subject is Physics

p
Stan the strongman lifts a 524 kg dumbbell from the floor to 1.69 meters above the floor at a constant velocity. How much energy does it take Stan to lift the dumbbell?

Physics
A 295kg box is pulled at a constant speed by the little engine. The box moves a distance of 2.8 m across the horizontal surface. (μ=.20) How much energy is transferred by the engine? (How much WORK is done?)

science
Is this hypothesis in the right format?. When yeast and vinegar are put together, they will form an endothermic reaction.

math
Find the volume of the region obtained by revolving the area below about the line x=3. y = x3, x=2, y=0 Find the moment of inertia of this solid of revolution.

math
Limited liability of the owners means that the stockholders of a corporation share a personal liability for all debts of the corporation.

Chem
I got that T2= -1/[ln(k2/k1) / (Ea/R) -(1/T1)] but I'm not sure what to use for k?

Chem
A certain reaction has an activation energy of 66.58 kJ/mol. At what Kelvin temperature will the reaction proceed 4.50 times faster than it did at 289 K?

please check
1.? 2.? 3. 285.88ft² so..rounded it would be D. 4.? 5. Forget this problem. 6. 126

Math help, anyone?
Find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm. 324 cm3 108 cm3 36 cm3 152 cm3 Find the volume of a cone with a radius of 10 mm and a height of 6 mm. 628 mm3 600 mm3 1,884 mm3 1,254 mm3 Find the lateral area of a cone with a radius of 7 ft....

Math
The voltage (in volts) induced in a coil of wire is v = (2t + 1)^0.5. The current in the coil is initially 0.3 amps, and the inductance is 5H. What is the equation for the current in the coil?

science
One property used to broadly classify elements is malleability. If a substance is malleable, it can be hammered, shaped, and flattened without shattering. Which group of elements has this property? A. Metals B. Metalloids C. Nonmetals D. Noble gases

English grammar
How would you diagram: the puppy's constant wimpering worried us

Can sum1 help.
:(

Math. please
Find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm. 324 cm3 108 cm3 36 cm3 152 cm3 Find the volume of a cone with a radius of 10 mm and a height of 6 mm. 628 mm3 600 mm3 1,884 mm3 1,254 mm3 Find the lateral area of a cone with a radius of 7 ft....

Math
A rectangular prism measuring 7 ft by 8 ft by 4 ft 224 ft3 112 ft3 232 ft3 116 ft3

Language arts: check my answers
Thank you.

Language arts: check my answers
8. there needs to be a comma in front of "Edition?" 9. Where should i put the comma? after california

Language arts: check my answers
My answers: 7) While I was researching skate boards, I found an interesting old newspaper story. 8) In the June 29, 1999 edition of the Mercury, there was an article on skateboarding. 9) Some scientists in San Francisco, California filmed skateboarders in action. 10) As they s...

Language arts: check my answers
For questions 7–15, rewrite each sentence, adding commas where needed. (7) While I was researching skateboards I found an interesting old newspaper story. (8) In the June 29 1999 edition of the Mercury there was an article on skateboarding. (9) Some scientists in San Fran...

Math - Answer Check
Oops. It would be 39,600, right?

Math - Answer Check
Dimensional Analysis 10. 17 cups = (8.5) pints 11. 18 pounds = (288) oz 12. 7.5 miles = (43650) ft 13. 32 quarts = (8) gal 14. 18 quarts = (72) cups 15. 180,000 inches = (2.84) miles 16. 4.5 tons = (144,000) oz

Damon
Plz help

Science check my answers
Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? denitrification*** nitrogen fixation producer uptake of nitrogen consumer decomposition Which of the following is carried out by denitrifying bacteria? break down large, nitrogen-ri...

Which of the following is a compound?
Which of the following is a compound? A. O2 B. C60 C. CO D. Cu

Dividing Polynomial
Please check. 1. (5x^3+x^2-7)/(x+1)= ? My answer: 5x^2-4x+4-11/x+1 2 (9x^3+5x-8)/(3x-2)= ? My answer: 3x^2+2x+3-2/3x-2

Science: my answers
Thank you!!!

Science: my answers
Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? nitrogen-fixing bacteria denitrifying bacteria decomposers producers***

MATH
Joe puts 5 books in his backpack as he leaves for school. He has 2 math books, 1 science book, and 2 history books. What is the probability that he will grab his science book out of his backpack without looking? I think 1/5 Jacquie has 4 sweaters that go with her new jeans. Wh...

CALCULUS ECONOMICS
2750? right or wrong?

Physics
I did not understand the part of the normal force..how did you gt that?

Science
Which best describes the similarities among elements included in the same column of the periodic table? A. They have the same state at room temperature. B. They have the same number of protons. C. They have the same number of electrons. D. They have similar chemical properties.

math
Thank you SO much for all of your help. I am sure all the questions you have to answer for all of us in so many subjects can be very grueling. Just wished I had your smarts.

math
was the second question correct?

math
Daniel flips 2 coins. Find the probability of the coins both coming up heads. I think 2/4 or 1/2 Serena has a bag filled with 10 breakfast bars. She knows that 1 of them is her favorite. Find the probability that she will select her favorite bar by reaching into the bag withou...

CALCULUS ECONOMICS
If Q = 440, shouldn't P = 560?

CALCULUS ECONOMICS
second: -300

CALCULUS ECONOMICS
Wrong!!!

physics
Thanks a lot...and how do you find out the work required to turn the cylinder through one complete turn under these conditions?

MATH
You can preselect 6 radio stations in your car. You hit a button without looking. What is the probability that it is your favorite station? I think 1/6

math
All the problem said was Two of 6 CD's are scratched. It wants me to take the probability and write it as a fraction

math
Of 12 books, 3 are fiction I think 3/12 or 1/4 Two of 6CD's are scratched 2/6 or 1/3 Nine out of 10 teens like to shop I think 9/10

math
There are 3 side orders: French fries, baked potato, or mashed potatoes. Find the probability of a customer choosing a baked potato. I think 1/3

MATH
I am assuming the others are correct.

MATH
Write probability as fraction 1. Sam flips two coins. Find probability of 1 head and 1 tail. I think 2/4 or 1/2 2. You roll 1 number cube to show an odd number. I think 3/6 or 1/2 3. Sheila has 8 apples; 5 of them are red. I think 5/8 4. Of 12 books, 3 are fiction I think 3/12...

math
won't 2 go into 4

math
you roll a number cube numbered 1 to 6. P(a number divisible by 4) I think 3/6 or 1/2

question
Oh. okay.

question
Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? nitrogen-fixing bacteria denitrifying bacteria decomposers producers***

math
A container has 26 orange, 23 pink, 16 blue, and 24 violet marbles. A marble is drawn at random. P(violet) I think 24/89

MATH
A jar contains 10 green, 6 white, and 11 brown marbles. A marble is drawn at random. P(brown or white) I think 17/27 A number from 16 to 28 is drawn at random. P(an even number) I think 7/13

MATH
You roll a number cube numbered from 1 to 6. P(a prime number) I think 3/6 or 1/2 P(not a 6) 5/6 P (an even number) 3/6 or 1/2 P (3,6,5,2, or 4) = 5/6

MATH
A number from 16 to 23 is drawn at random. P(a number greater than 18) I think 5/8

Damon/ Math
A jar contains 21 brown, 4 violet, and 6 white marbles. A marble is drawn at random. P(not white) I think 6/31 YOU DIDN'T SAY IF IT WAS CORRECT OR NOT

math
You roll a number cube numbered from 1 to 6. P(a prime number) I think 3/6 or 1/2 P(not a 6) 5/6 P (an even number) 3/6 or 1/2 P (3,6,5,2, or 4) = 5/6

science (check answer?)
What does aluminum, germanium, and polonium have in common? A. They are gases. B. They have properties of metals and nonmetals. C. They are all metals. D. They have the same properties as the noble gases in the last column. (I think its B.)

math
You roll a number cube numbered from 1 to 6. P(2) I think 1/6

math
A number from 16 to 23 is drawn at random. P(a number greater than 18) I think 5/8

math
Is it correct?

math
I know how you feel!!!!

math
A jar contains 21 brown, 4 violet, and 6 white marbles. A marble is drawn at random. P(not white) I think 6/31

Which compound is made up of three elements?
Which compound is made up of three elements? A. H2O2 B. CaCl2 C. HNO3 D. Na2O

math
A jar contains 8 red, 24 purple, 18 violet, and 24 yellow marbles. A marble is drawn at random. P(yellow) I think 24/74

math
A jar contains 25 navy, 21 white, 13 purple, and 7 brown marbles. A marble is drawn at random. P(purple or navy) I think 38/66

math
A number from 21 to 30 is drawn at random. P( a number less than 24) I think 3/10

math
A jar contains 21 red, 4 black, 12 orange, and 18 pink marbles. A marble is drawn at random. P(black) I think 4/55

math
A number from 20 to 30 is drawn at random. P(not a 23) I think 1/11

math
A jar contains 6 pink, 7 violet, 26 green, and 13 blue marbles. A marble is drawn at random. P(violet, pink, or blue). V = 7/52 P = 6/52 B = 13/52

math
A jar contains 25 green and 17 purple marbles. A marble is drawn at random. P(not a 23). Answer 17/42

Science
And how can I measure temperature at different stages if I do this experiment?

Science
What happens when yeast and hydrogen peroxide are mixed together? What happens when yeast, hydrogen peroxide, and dish soap are mixed together?

finance
A project has an initial requirement of $261,000 for fixed assets and $27,000 for net working capital. The fixed assets will be depreciated to a zero book value over the 4-year life of the project and have an estimated salvage value of $78,000. All of the net working capital w...

Financing
A person is considering buying the stock of two home health companies that are similar in all respects except for the proportion of earnings paid out as dividends. Both companies are expected to earn $6 per share in the coming year, but Company D (for dividends) is expected to...

science
3. A section of the Periodic Table of the Elements is shown. Based on the positions of the elements, the two elements that have the most similar chemical properties are — A. calcium and scandium B. calcium and titanium C. titanium and vanadium D. magnesium and calcium 4. ...

Science
1. Of the following, the only change that is an example of a chemical change is — A. water evaporating from a puddle B. an iron nail rusting and turning an orange color C. a piece of paper being cut into smaller pieces D. a stick being broken in half 2. All of the followi...

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