# Questions Asked onApril 14, 2011

1. ## Algebra

Three quarters are tossed and a tail appears on at least one of them. What is the probability that at least one head appears? Express as a common fraction.

2. ## Algebra

For how many two-digit prime numbers is the sum of its digits 8?

3. ## chemistry

What mass of liquid water a t room temperature (25°C) can be raised to its boiling point with the addition of 40.0 kJ of energy?

4. ## Math

You are given 9 to 1 odds against tossing three heads with three coins, meaning you win \$9 if you succeed and you lose \$1 if you fail. (Find the expected value of the described game. Would you expect to win or lose money in 1 game? in 100 games? Explain.

5. ## physics

In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a

6. ## physics

At the equator, the earth’s field is essentially horizontal; near the north pole, it is nearly vertical. In between, the angle varies. As you move farther north, the dip angle, the angle of the earth’s field below horizontal, steadily increases. Green

7. ## chemistry

I don't know how to explain or if Ive got my homework answer correct. The question is: A patient on dialysis has a high level of urea, a high level of sodium and a low level of potassium in the blood. Why is the dialyzing solution prepared with a high

8. ## chemistry

The indicator methyl red has a pKhln=4.95 . It changes from red to yellow over the pH range from 4.4 to 6.2. If the indicator is placed in a buffer solution of Ph = 4.56, what percent of the indicator will be present in the acid form,Hln- , AND what

9. ## Physics

Light containing two different wavelengths passes through a diffraction grating with 1300 slits/cm. On a screen 16.0 cm from the grating, the third-order maximum of the shorter wavelength falls midway between the central maximum and the first side maximum

10. ## history

Discuss how the rise of capitalism led to the development of communism. I put: • Capitalism was where individuals and business firms would carry out all factors of production and trade. The owners would control the prices of their products. When

11. ## math

A teacher prepares a test. She gives 5 objective type questions out of which 4 have to be answered. Find the total ways in which they can be answered if the first 2 question have 3 chioce and the last 3 have 4 choices. I think this a permutation question

12. ## Chemistry

How many isomers does bromoethane (C2H5Br)??

13. ## Chemistry: Stoichiometry

calculate the number of oxygen needed to oxidize 12.5grams of glucose (C6H12O6) into carbon dioxide and water. (Combustion reaction)

15. ## Math

How do you do a number pattern for 8 starfish with 5 arms

16. ## Chemistry: Stoichiometry

calculate the number of oxygen needed to oxidize 12.5grams of glucose (C6H12O6) into carbon dioxide and water. (Combustion reaction)

17. ## physics

Billiard ball A of mass mA=0.400kg moving with speed vA=1.80m/s strikes ball B, initially at rest of mass mB=0.500kg. As a result of the collision, ball A is deflected off at an angle of 30.0 degrees with a speed of vA=1.10m/s. (a) Taking the x axis to be

18. ## child care

A good technique to prevent children from talking to you while you're observing is to A. sit far away. B. avoid eye contact. C. stand to one side. D. tell them to go away.

19. ## Physics pls help

An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1

20. ## Chemistry-atoms

A. How many protons are in one atom of fluorine - 19? B. How many neutrons are in one atom of potassium - 39? C. How many electrons are in one neutral atom of V - 51? D. What is the symbol for the element that has 78 protons? E. What is the symbol for the

21. ## Chemistry

In one trial of an investigation 50.0 mL of HCl(aq) of an unknown concentration is Tiresias with 0.10M NaOH (aq). During the titration the total volume of NaOH (aq) added and corresponding pH value of the reaction mixture are measured and recorded in the

22. ## childcare

2. Rachel's parents enrolled her in your after-school program in September. In October, Rachel and another girl named Callye started planning a holiday play for December. They worked on the plan everyday. Soon they became inseparable. In December, parents

23. ## Physics

A particle with a charge of -60.0 nC is placed at the center of a nonconducting spherical shell of inner radius 20.0 cm and outer radius 33.0 cm. The spherical shell carries charge with a uniform density of -2.02 µC/m3. A proton moves in a circular orbit

24. ## chemistry

For a solution that is 0.280M HC3H5O2 (propionic acid, Ka= 1.3*10^-5) and 0.0894M HI , calculate the following: [H3O+] [OH-] [C3H5O2-] [I-]

25. ## Chemistry

How many moles of silver nitrate are needed to produce 6.75 moles of copper nitrate (CU(NO3)2) upon reaction with excess copper by useing this equation: 2AgNO3(Aq) + Cu (s)-->2Ag(s)+Cu(NO3)2 (AQ)

26. ## trig

Show that (90-45)=cos90 cos 45

27. ## Chemistry

To what Celsius temperature must 32.5 mL of methane gas at 60.0°C be changed so the volume will be 62.0 mL? Assume the pressure and the amount of gas are held constant.

28. ## Math

There are 30 students in a math class. 12 belongs to the computer club and 8 belongs to the photograph club. three belongs to both. how many belongs to neither???

29. ## Algebra

What is the number of degrees in the measure of the larger of two supplementary angles if the ratio of their measures is 4:5?

30. ## chemistry

Decide if each of the following principles were first discovered during Thompson's cathode ray tube experiments, Rutherford's gold foil experiment, Millikan's oil drop experiment or none of these. Label each one with either Thompson, Rutherford, Milikan,

31. ## childcare

Which of the following observations of children is the most objective? A. Chris took a toy truck from Alex. Alex cried, became angry because Chris took the truck, and then stamped his feet on the floor. He snatched the truck back from Chris, and ran to the

32. ## childcare

Observational records that contain significant detailed information are usually in what form? A. Checklist B. Narrative C. Unobtrusive D. Outline i got d

33. ## French - SraJMcGin

Thanks for your help with the last exercises. But Im still sort of confused with the Superlative stuff. For the excercises yesterday. Le film, Inception est le plus interessant au Canada. The teacher corrected this sentence to: Inception est le film le

34. ## Chemistry

How many grams of water will be produced if 32.0 g of nitrous oxide are also produced in the reaction? useing this equation: NH4NO3 (s)--> N2O (g) + 2H2O (g)

35. ## Biology

Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1. If the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by your

36. ## Math

you deposit \$1000 at 3% per year.what is the balance at the end of one year,and what is the annual yield,if the interest.Please help solve the problem. Simple interest? Compounded annually? Compounded quarterly Compounded daily

37. ## physics

A 20 kg object falls from a height of 30 meters. How many joules of kinetic energy will the object have just before it hits the ground?

38. ## Geometry

The area of triangle ABC is 494in^2. Find the height if AC = 19 inches.

39. ## FRENCH - *Imperative*

Limperatif. Use the command to indicate what your friends should or should not do. Could you please give me an example of what its asking me to do. For the not. I believe you are supposed to put N' infront of a verb.

40. ## Math

A gift store stocks baseball hats in red or green colors. Of the 35 hats on display on a given day, 20 are green. As well, 18 of the hats have a grasshopper logo on the brim. Suppose 11 of the red hats have logos. How many hats are red, or have logos, or

41. ## Geometry

A gallon of paint costs \$20 and covers 465 square feet. Three coats of paint are recommended for even coverage. The room to be painted is 12 feet high, 20 feet long, and 20 feet wide. Only 4 gallons of paint are left to paint the room. Is this enough paint

42. ## Geometry

Determine whether each statement is always, sometimes, or never true. Two cones are similar. A pyramid is similar to a square. Two spheres with the same radius are congruent. Non-similar solids have different volumes.

43. ## English

Jack London's Law of Life What is the "law of life"? How does it relates to naturalism?

44. ## English

Can you please check of these sentences are possible? Thank you. 1) You limited yourself to include (including?) the various themes without linking them in a coherent paragraph. 2) In your paragraph you didn't change any single word from the notes I gave

45. ## managing human resources

what economic social and political forces have made emplouyee even more important tody that it was in the past

46. ## Child Development

When preparing an environment for scjhool-aged childre, the caregiver should ensure that the (children have the opportunity to relax in a homelike atmosphere) OR (outdoor area allows them t ocontinnually challenge their physical ability)? I cant remember

47. ## Math

She added 4, multiplied the sum by -5, and subtracted 12. She then doubled the result and got -34. What number did Christa started with?

Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization

49. ## algebra

Tad was delivering lunch to a local office building. His first delivery was to the middle floor of the building. He then took th elevator up 4 floors for the next delivery, down 6 floors for his third delivery, and up 7 floors for his final delivery. He

50. ## Chemistry (The Composition of an Atom)

In 1808, John Dalton wrote his atomic theory of matter. The following is a list of points from that theory. If it is still considered true today, label it true. If it is not considered true today, label it false. 1)Atoms cannot be subdivided. 2)Atoms

51. ## childcare

One of the most important factors in a caregiver's ability to provide quality care is A. good business sense. B. patience. C. knowledge of child development. D. experience in the field. i got b

52. ## Math

Jake spent 3/8 of is money on books and 1/2 of what is left on magazine. he now has \$6.25. how much did he start with?

53. ## math !!!! :O

Luisa and Connor had \$360 altogether. After Connor gave Luisa 2/5 oh his money, she had the same amount of money as he did. How much money did Connor have in the beginning?

54. ## childcare

Six-, seven-, and eight-year-olds A. do a great deal of tattling and boasting. B. make lasting friendships. C. are seldom aggressive. D. become logical thinkers. im not sure about this one

55. ## Math

List the elements {a1, a2, a3...} where an is defined as a1= 1, an=na(n-1) n E N, 1

56. ## physics

A sphere of radius 0.715 m, temperature 21.1°C, and emissivity 0.672 is located in an environment of temperature 93.8°C. At what rate does the sphere (a) emit and (b) absorb thermal radiation? (c) What is the sphere's net rate of energy exchange?

57. ## Chemistry

I need to know how to right a net ionic equation for the following chemical reaction: 5 H2C2O4 + 3 H2SO4 + 2 KMnO4 = K2SO4 + 2 MnSO4 + 8 H2O + 10 CO2

58. ## Chemistry

How many moles of aluminum oxide can be produced from 12.8 moles of oxygen gas (O2) reacting with excess aluminun (Al)? useing this equation: ---- I don't get how to do these? 4Al(s) + 3O2--> 2Al2O3(s)

59. ## chemistry

Lactic acid, C3H6O3, is found in sour milk. A solution containing 1.00g NaC3H5O3 in 100.0mL of 0.0500M C3H6O3 has a pH= 4.11. Calculate the Ka of lactic acid

WHO MADE THESE ATOMIC DISCOVERIES? An atom has a nucleus that is very small In a reaction, the mass of the products must equal the mass of the reactants. Electrons are negatively charge pieces of matter. An electron has a mass that is very small compared

61. ## chemistry

Thymol blue in its acid range is not a suitable indicator for the titration of HCl by NaOH(aq) . Suppose that a student uses thymol blue by mistake in the titration of Figure 17-9 in the textbook and that the indicator end point is taken to be pH=2.0.

gordon rosel went to his bank to find out how long it will take for \$2,300 to amount to \$2, 860 simple interest.

63. ## Chemistry

how could you maximize the rate of reaction of magnesium and hydrochloric acid other than concentration and surface area techniques.tell a experiment in short.

64. ## French - Excerise on Passe Compose

Here is another writing prompt which basically focuses on the Passe Compose. Using the irregular verbs --Avoir, Etre. Here are the instructions: You are spending six months in Paris studying at a specific language school. Write your French teacher a letter

65. ## Chemistry 12

If a 0.50 M solution of potassium hypochlorite, [OH^-]=3.0*10^-4. What is the Ka for hypochlorous acid? Can someone please help me with this question? I can't get the right answer

66. ## Math

after your holiday you have come home and decided that you are going to open up your own business.In order to advertise you put up a free standing sign. you notice that the shadow of the sign is 4metres long when your shadow is 1.6m long if you are 1.5m

67. ## Buffer L

CH3CO2H: 0.109M & 20ml NaOH : 0.109M& 10ml H20:10ml Buffer Problem, when I solve it the ratio becomes the same and the pH is the same as the pka, is that right?

68. ## math

Mr. Forrester has a swimming pool that measures 3 1/3 yards by 8 yards. If the deck around the pool is 2 2/3 yards wide, what is the outside perimeter of the deck?

69. ## Physics

A bomber is flying horizontally over level terrain at a speed of 250 m/s relative to the ground and at an altitude of 3.20 km. The bombardier releases one bomb. How far does the bomb travel horizontally between its release and its impact on the ground?

70. ## social studies

both patricians and plebian men were roman what?

71. ## Math

On Dec 1,2007,you could buy a 10-year U.S.Treasury note(a kind of bond)for \$10,000 that pays 4.21% simple interet every year through Dec 28,2017.How much total interest would it earn by then? Thanks!

What are two forces that you believe shape the relationship between business and society?

73. ## Algebra

The measures of two sides of a parallelagram are 28 in and 42 in. If the longer diagonal has measure 58 in, find the measures of the angles at the vertices

working on a crossword puzzle it has 8 letters and the words are grammar;______;:scale;music

75. ## American History

This is what my teacher wrote up on the board today and i was needing some help with it i don't really understand it all... This is exactly what he wrote: In a page-long essay describe how we got Texas Include: Stephen Austin, Zachary Taylor, Manifest

76. ## Geometry

How do you find the base and height of the parallelogram if the area is 180 square units?

77. ## English

Can you please check these sentences for me? Thank you very much. 1)Another important theme is that of equivocation.The witches confuse good and bad (better evil). They are unable to distinguish between good and evil. 2) Closely connected to the theme of

78. ## Math

What is the exact number of 2 inch cubes that wi fit in a rectangular prim measuring 6 inches by 8 inches by 4 inches?

79. ## Physics

Diego pulls a 4.5 kg sled across level snow with a force, F, of 200 N on a rope that is 35.0° above the horizontal, as shown in Figure 10-18. If the sled moves a distance of 63.6 m, how much work does Diego do?

80. ## Geometry

The coordinates of the vertices of a polygon are R(-4, 3), S(-4, -7), T(5, -7), and V(5, 3). Find the area and determine whether it is a parallelogram, rectangle, or square.

81. ## Geometry

The coordinates of the vertices of a polygon are A(0, 0), B(7, 0), C(9, 7), and D(2,7). Find the area and determine whether it is a parallelogram, rectangle, or square.

82. ## FRENCH --Venir

Based on the illustrations, write sentences with VENIR DE to tell what everyone has just done. 1. Nous venons de faire du shopping. 2. Je viens de manger mon sandwich au jambon. 3. Ils viennent de téléphoner. 4. Tu viens de préparer une tarte. 5. Elle

83. ## world history

neanderthals lived near homo sapians for thousands of years

crossword puzzle 6 letters words given square;perpendicular;:triangle;________

85. ## Geometry

The area of rhombus RSTV is 1326 Ft. Find SV if RT = 39 ft.

crossword puzzle 9 letters words given watermark;paper::________;person

87. ## Composition

what does united we stand mean

88. ## Ebglish

I still have afew more doubts 1) The Whigs were in power (and not "in charge") from 1714 and 1760. 2) Avoid writing long-winded sentences linked by the conjuction "and". 3) The ministers' meetings were called Cabinet (better: they developed into the

(x + 6)2 = 49

90. ## French - Professions

Sorry, If Im posting a lot of French stuff today, its just that I have a Test tomorrow on all of this, so Im trying to get myself prepared. Professions in French --- I want to know exactly what the professions mean, so I don't get them mixed up anyhow. Un

91. ## physics

The average rate at which energy is conducted outward through the ground surface in a certain region is 51.6 mW/m2, and the average thermal conductivity of the near-surface rocks is 3.31 W/m·K. Assuming a surface temperature of 11.7°C, find the

92. ## French - Grand Palais et Petit Palais

Im wandering whether these two palaces are connected to each other? Or are they two different Palaces?

93. ## Geometry

Find the base and height of the parallelogram if the area is 1395 square units.

94. ## chemistry

True or False? Two identical beakers of water that have been over the same size flame for the same length of time will ALWAYS stay at the same temperature, no matter how much water is inside.

95. ## math

If the true population standard deviation was known to be 3.0, then approximately what minimum sample size would you need in a simple random sample if you want a 95% confidence interval for the mean to have a margin of error of .5 or less?

96. ## pys 202

One of the reasons that certain advertisements are successful is because viewers want to behave like those they observe. What is the general term that psychologists use to describe this type of behavior?

97. ## Geometry

Given the vertices of RST where R (3, 2), S (-1, 1) and T (0, 4), explain how you would solve for R’S’T’ after the translation (x, y) (x +3, y – 1).

98. ## Biology

How does the CVS, urinary and respiratory systems work together to maintain homeostasis?

99. ## physics

Which principle can be applied to explain what happens to the pitch of a sound as the source comes closer and close,pass the listener and away?

100. ## english

Values and Lifestyle system of consumers in James B. Twitchell's What We Are to Advisters. What are the consumers gropups being targeted?

Can anybody tell me step wise step how to solve this quadratic equation? x^3-3x^2+4=0 Please tell me step wise step as i haven't solved such type of equations before. Thank You

102. ## Physics

You observe someone pulling a block of mass 48 kg across a low-friction surface. While they pull a distance of 3.0 m in the direction of motion, the speed of the block changes from 4.9 m/s to 7.7 m/s. Calculate the magnitude of the force exerted by the

103. ## Intro to chem

What is the volume of 19.7g of oxygen at STP? Heres what i got but did not get the same answer..pls tell me where i am wrong! (grams to moles) 19.7g x 1 mol/ 16.00 = 1.23 mol Oxygen (Pv=nRT) looking for V 1.23 mol x 0.0821 x 273K / 1.00 atm = 27.57 CORRECT

104. ## Calculus

1. Find the are between the curves y=e^x and y=4-x^2 graphically. a.) set up the integral b.) include bounds rounded to three decimal places c.) use integral function on calculator 2. Find the area of the "triangular" region bounded by y=4-x on the left,

105. ## Chemistry

Name the new compound formed when sodium sulfide is added to zinc sulfate. What is the chemical formuala for this new compound?

106. ## Geometry

Given the volume of two cubes, find the scale factor. 6) V = 343 in3 and V = 729 in3 7) V = 1331 ft3 and V = 125 ft3

107. ## Geometry

The scale factor of two similar solids is 7:5. 8) Find the ratio of volumes. 9) Find the ratio of surface areas.

108. ## chemistry

why is it a bad idea to use lead in ceramic object that are used to serve food

109. ## finance

Metropolis currently has \$1,150,000 in cash. How long would it take them to accumulate \$2,000,000 in cash? Assume an interest rate of 5%.

110. ## Geometry

Find the scale factor of the two spheres if g = 12 and h =10.

111. ## Math

you deposit \$1000 at 3% per year.what is the balance at the end of one year,and what is the annual yield,if the interest.Please help solve the problem. Simple interest? Compounded annually? Compounded quarterly Compounded daily

112. ## english

Could you show me some examples of sentences using pronouns desribing a recent interaction with a friend or family member about personal finance or credit cards.

113. ## home economics

Bridget has a limited income and consumes only wine and cheese; her current consumption choice is four bottles of wine and 10 pounds of cheese. The price of wine is \$10 per bottle, and the price of cheese is \$4 per pound. The last bottle of wine added 50

Inverse Trigonometric Functions please explain this to me in mathematical steps please how to solve sin^(-1) (-1/2) this equals - pi/6 i know that sin^(-1) domain and range switch from original sin but i don't know how to apply that... i need an

115. ## division

example of a expanded notaion problem

117. ## english

sam's essay lack a clear beginning,middle, and end as well as wek and limited transitions. in which area was Sam's essay weak?

118. ## math

3u(squared) -11u - 14 =??

119. ## home economics

In an article about the financial problems of USA Today, Newsweek reported that the paper was losing about \$20 million a year. A Wall Street analyst said that the paper should raise its price from 50 cents t o75 cents, which he estimates would bring in an

120. ## math

2u (squared) + 5u - 18

121. ## Science

Consider a mole of CO2 and a mole of N2O each at STP. Which of the following statements are true? Check all that apply. ~Both gases will have approximately the same density at these conditions. ~When the volume is not held constant, raising the temperature

122. ## Socials

All schools in BC(private and public schools) should be fully funded by the Ministry of Education. I know that there could be Cons to this as well. But Ive got to list the Pros. The Pros - All students should not need to pay to receive education. It should

123. ## finite math

The weights of boxes of Brand Z cereal were found to be normally distrubted with a mean of 16.5 ounces and a standard deviation of 0.4 ounces. a. what percentage of the boxes will weigh more than 16 ounces? b. what percentage of the boxes will weigh

124. ## finance

A company’s perpetual preferred stock currently trades at \$80 per share and pays a \$6.00 annual dividend per share. If the company were to sell a new preferred issue, it would incur a flotation cost of 4%. What would the cost of that capital be?

125. ## finite math

kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores

126. ## finite math

1. what are the mean and standard deviation for this distribution of weekly take-home pay amounts? 2. what percentage of the pay amounts lie within 1 standard deviations of the mean? 3. what percentage of the pay amounts lie within 2 standard deviations of

127. ## earth

¿EN QUE PUNTO DE GRAVEDAD SE PUEDE RETORNAR UN SATELITE ARTIFICIAL HACIA LA TIERRA? ¿EN EL PERIGEO O EN EL APOGEO?

128. ## Math

My couch potato friend enjoys sitting in front of the TV and grabbing handfuls of 4 chocolates at random from his snack jar. Unbeknownst to him, I have replaced one of the 26 chocolates in his jar with a cashew. (He hates cashews with a passion.) How many

129. ## Math

She added 4, multiplied the sum by -5, and subtracted 12. She then doubled the result and got -34. What number did Christa started with???

130. ## MATH

CAN YOU EXPLAIN TO ME HOW quadratic equation CAN BE USED IN EVERYDAY LIFE?

131. ## SraJMcGin

Sra I have a lot of French posts below. Could I please receive your help with them? I have a Test tomorrow, so Im trying to prepare myself at the earliest. Thanks a lot in advance. :)

132. ## French

1. _______ (on sundays), mes parents _______(aller) musee. 2. _______ (on Fridays) , ma mere _______ (aller) Banque

133. ## Social Studies

Name two other factors besides latitude that influence japans climate? and what major ocean currents affect japan

134. ## chemistry finding moles

I know the formulas to a mole which equals 6.02x10 to the 23rd power but i have no idea what to do with the formula when converting grams to moles visa versa or atoms or molecules, and i have no idea what goes with what as far as what resources you're

135. ## psychology

what do you do if a teacher and a behavior analyst want you to teach a child two different ways? (Autistic child)

136. ## Chemistry

What is the final volume of 945 mL of neon gas at 174°C if the gas is cooled to 58.5°C? Assume the pressure and the amount of gas are held constant.

137. ## american history

What Civil War general replaced Hooker as commander of the army of the Potomac in June of 1863?

138. ## Chemistry

If 290 Liters of carbon dioxide forms, how many grams of nitroglycerine exploded?

139. ## Chemistry

What is the volume of 150. mL of oxygen gas at 72.0°C and 110. mm Hg if the conditions are adjusted to 750. mm Hg and 82.5°C? Assume the amount of gas is held constant.

140. ## Chemistry

A closed container with a mixture of hydrogen, helium, and argon has a total pressure of 3.00 atm. The partial pressure of hydrogen is 0.550 atm and the partial pressure of argon is 615 mm Hg. What is the partial pressure of helium?

141. ## Chemistry

What is the pressure of 495 mL of oxygen gas at 30.5°C and 710. mm Hg if the conditions are adjusted to 310. mL and 80.5°C? Assume the amount of gas is held constant.

142. ## Chemistry

A 230. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 60.°C?

143. ## Literature

I was wondering if someone could help me find information on the short story "Died and Gone to Vegas" by Tim Gautreaux. I read the story but didn't understand it to well. I was just wondering what the theme is. I tried to look it up but I cannot find any

Gene has less than 12 nickels,dimes,and quarters in his pocket.The probability of pulling out a nickel or a quarter is 3/4.The probabilty of pulling out a dime is 1/4.How many coins does Gene have in his pocket?How many of each does he have?

145. ## math

what is the surface area of a rm 12ft x 12ftx9ft

146. ## physics

An air compressor is a device that pumps air particles into a tank. A particular air compressor adds air particles to its tank until the particle density of the inside air is 40 times that of the outside air. If the temperature inside the tank is the same

147. ## American Goverment

Which is the correct translation of de jure segregation?

148. ## social studies

Hi, I have a big debate tomorrow and I am going to be a cross examiner. I need arguments and ideas of what to say... the resolution is Gender Roles Are/Are Not Beneficial to Society. Thankyou!

149. ## math

Please help solve the below problem Show work please! Thanks. On Dec 28,2007,you could buy a 10-year U.S.Treasury note(a kind of bond)for \$10,000 that pays 4.21% simple interet every year through Dec 28,2017.How much total interest would it earn by then?

150. ## Math III

1. Traci purchases a car for \$16,000. If its depreciates by 12% per year, what will be the car's value in 5 years? 2. The population of flies in Mr. Bunn's classroom doubles every 5 days. If there where 10 flies on the first day of school, when will the

151. ## Child Development

A good technique to prevent children from talking to you while you're observing them is to what? 1. Avoid eye contact 2. Sit far away 3. Stand to one side Which one is correct?? ( i think its one of the first two im not sure)

I can't think of a time when an ordinary person has made a difference in somebody's life.

153. ## algebra

How many different seven digit phone numbers are available if the only restriction is that the first digit cannot be 0.

154. ## English

Which of the fllowing is CORRECT? A. She sings bad. B. He runs a well race. C. They won with a lucky shot. D. all of the above

155. ## Chemistry

time(s) 30 60 120 180 240 300 420 480 t(*c) 13.8 13.8 13.9 13.1 14.2 14.3 14.5 14.7 14.8 b. if t1= 24.5*c, T2= 1.5*C, tr= 23.6*c, and with the tf obtained from the plot, determine Ccal, in J/*C, if the procedure descrived in the laboratory is followed.

156. ## math

a triangle with a side of length 2/7 units and side of length 15/28 units

157. ## Chem

For a solution that is 0.280 M HC3H5O2 (propanoic acid Ka=1.3*10^-5) and 0.0894 M HI, calculate the following. Concentration of H30, OH, C3H5O2-, I-

158. ## physics

You observe someone pulling a block of mass 48 kg across a low-friction surface. While they pull a distance of 3.0 m in the direction of motion, the speed of the block changes from 4.9 m/s to 7.7 m/s. Calculate the magnitude of the force exerted by the

159. ## SAT

DOES ANYONE KNOW A WEBSITE THAT PROVIDES A FULL PRATICE TEST OF SAT AND GIVES YOU SCORE NEXT PS : OTHER THAN COLLEGEBOARD..

160. ## Algebra

What is the remainder when 13 to the 51st power is divided by 5?

161. ## English

I urgently need you to revise these sentences. I thank you very much for your help 1) They prophesy that Banquo will be father to a line of kings. The witches also tell him that no man born of woman can hurt him. 2) What does Shakespeare say (write) in the

working on a crosword puzzle it has 9 letter and the words given are watermark; paper;________;person help please

163. ## math

Gene has less 12 nickels,dimes,&quarters in his pocket.The probabilty of pulling out a nickel or quarter is 3/4.pulling out a dime is 1/4.How many coins does gene have in his pocket?.how many of each coin does he have?Please explain how you got the

164. ## Net Ion Equation

How can you write a net ion equation and identify the conjugate acid/base pairs for these followings? KNO3 Na2HPO4 NH4Br

I'm writing an essay about Mercutio's character and why friendship is so important to him in Romeo and Juliet. I have a good complex thesis but I'm having trouble structuring it. Thesis: Mercutio is extremely close with Romeo and cares very deeply about

166. ## English

Which of the following sentences is in the passive voice? A. I just don't see the point. B. I want my MTV. C. A whole case of beer gets drunk every Satyrday night. D. Please don't tell me I missed it. I think its D

167. ## chemistry

Its 5:23pm Ive just checked to see if I've gotten a response,looks like mine has been skipped over. I see questions that were asked after mine and the one right before mine. I never got an answer. What's up?!

168. ## math

can you explain to me how I would use Quadratic equations in everyday life

169. ## French for Sydney

I had to go way back to a site I used to recommend when I tutored for AOL. I am glad it is still there and you might find it very handy: http://www.utm.edu/staff/globeg/gramm.shtml I also had a site where I put a lot of review things but I lost that with

170. ## algebra

what is the effect on the graph of the equation 6x+3y=12 if 12 is changed to 36?

171. ## APUSH

The U.N. Resolution 1441 authorized what?

172. ## geometry

how many feet up the wall of the building is the other end of the ladder?

173. ## American History

This is what my teacher wrote up on the board today and i was needing some help with it i don't really understand it all... This is exactly what he wrote: In a page-long essay describe how we got Texas Include: Stephen Austin, Zachary Taylor, Manifest

174. ## Physics

How many slices of pizza must you eat to walk for 1.0 h at a speed of 5.0 km/h? (Assume your mass is 68 kg). Our book provides: -One slice of pizza's energy content is 300 cal, or 1260 KJ. -To walk at 5 km/h= 380 W of a 68 kg individual. Thanks!!!

175. ## chemistry

An unknown was prepared with the concentration of 0.000630 M. A Beer's Law plot was prepared using the absorbance values from standard solutions of ASA and a line drawn through all the points passed through the origin with a slope of 1550.2 M–1 . The

176. ## English

1. I like clothes made by Italian designers. 2. I like clothes which were made by Italian designers. 3. I like clothes which are made by Italian designers. (Does #1 mean #2 or #3? Which ones are missing?)

177. ## geometry asap

I put ^ next to the answer i put. can you tell me if im correct or not. and if not can you correct it for me and tell me what i did wrong? 1. The length of a rectangle is 6 1/2 inches and the width is 3 3/4 inches. What is the ratio, using whole numbers,

178. ## Algebra 1

How do you graph the function: y = 6x(squared) - 12x + 1 Then, how would you find the Axis of Symmetry and the Vertex? Any help is greatly appreciated

179. ## American History

I need asap homework help

180. ## Math. Help me please!

The two circles have equations x^ + (y-3)^2 = 49 and x^2 + (y-17)^2 =49. find the equation of the larger circle. The diagram looks like two circles on top of the other then a large circle outside.

181. ## math

For 6z=126 mike wrote that z=756 explain what mikes mistake was then tell the cor4rect answer.

182. ## Comp

What is sentence variety and rhythm in composition writing and how do they interact in effective writing?

183. ## Physics

Fresh snow is about one-tenth as dense as liquid water. How much latent heat is released in storm clouds per square kilometer of surface area by the freezing of water droplets if the storm deposits a 30-cm-deep layer of fresh snow? Q = LfM where the mass

184. ## trig

A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket

185. ## English

1. My favorite is music (which was/which is) written by Mozart. 2. I am reading a book (which was /which is) written by Hemingway. (which one is right in the parentheses?) 3. After use, just take them off and wash the fat away. (What is the meaing of

186. ## social studies

Which is a valid conclusion that can be drawn from the information in the chart?

187. ## math

Plywood is sold in rectangle sheets 4 feet wide and 8 feet long. How many 4x8 sheets of plywood are needed to completely cover a rectangle shaped floor measuring 16 feet by 12 feet

188. ## marketing

Is there any difference between a brand name and trademark? If so, why is this difference important?

189. ## marketing

Explain the importance of an organized new-product development process and illustrate how it might be used for. a. A new care product b. A new children’s toy and c. A new subscribers-only cable television channel

carol miller went to europe and forgot to pay her 4740 mortgage payment on her new hampshire house,. for her 59 days overdue on her paymen. the bank charged her a penalty of \$15 assume 360 days. what was the rate of interest charged by the bank?

191. ## childcare

Children develop to their potential when caregivers have A. realistic expectations. B. strong values. C. a philosophy. D. regulations. i got a

192. ## trig

A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket

193. ## physics

An airplane flies 200 km due west from city A to city B and then 245 km in the direction of 36.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A?

194. ## childcare

When preparing an environment for school-aged children, the caregiver should ensure that the A. environment resembles their school setting. B. children are continually intermixed with the younger children. C. outdoor area allows them to continually

195. ## Physics

Microwaves of wavelength 4.50 cm enter a long, narrow window in a building that is otherwise essentially opaque to the incoming waves. If the window is 36.5 cm wide, what is the distance from the central maximum to the first-order minimum along a wall 6.70

196. ## Modern History

Hi Guys! Okay sweet, here goes. I'm supposed to be keeping a research journal of my research. In it I like examine my research and process. I've already done my Hypothesis. Under the topic of INITIAL THOUGHTS AND IDEAS I outlined why I chose the topic,

197. ## biology

I want to imaging collagen and elastin in porcine heart tissue without staining using a confocal microscopy. So far most of the articles that I found are using staining to differentiate the two, is anyone familiar with the microscopy method

198. ## College Physics

Two identical conducting spheres each having a radius of 0.500 cm are connected by a light 1.90 m long conducting wire. A charge of 65.0 µC is placed on one of the conductors. Assume the surface distribution of charge on each sphere is uniform. Determine

199. ## Math

Triangle LMN hes vertices at L(-4,-3), M(2,5), and N(-13,10). If the distance from point P(x,-2) to L equals the distance from P to M, what is the value of x? Could you be so nice and help me please. I tried so hard but I couldn't find the same solution

200. ## Math

solve the equation sin(3x) + (1/2) = 2cos^2(x) for X to be between 0 and 360

carol miller went to europe and forgot to pay her \$740 mortgage payment on her new hampshire house. for her 59 days overdue on her payment, the bank charged her a penalty of \$15 (assume 360 days) what was the rate of interest charged by the bank?

202. ## physics

a mass of density bottle is 20g,when empty,70g when full of water and 55g when full of a second liquid.calculate the density of the liquid

203. ## Calculus (urgent!!)

A particle moves with its position given by x=cos(2t) and y=sin(t), where positions are given in feet from the origin and time t is in seconds. A)Find the speed of the particle. Speed = ____________ (include units) B)Find the first positive time when the

204. ## English - Native speakers

Hello! What does toiletries mean? Is this stuff we use in our bathroom e.g. toothbrush, comb etc. or is this a perfume but with higher percentage of water?

205. ## math!

Frank had a pretest score of 6, what must his posttest score be for his percent of increase to be 50 percent?

abe wolf brought a new kitchen set at sears. abe paid off the loan after 60 days with as interest of \$9. if sears charges 8% interest. What dis abe pay for the kitchen set (assume 360 days)

207. ## AP CALCULUS!!! HELPP

related rates: the base of a pyramid-shaped tank is a square with sides of length 12 meters, and the vertex pyramid is 13 meters above the base. the tank is filled to a depth of 5 meters, and water is flowing into the tank at the rate of 2 cubic meters er

208. ## chemistry

how much heat is released when 5.60 moles of NaOH is dissolved in water?

209. ## child care

When preparing an environment for school-aged children, the caregiver should ensure that the A. environment resembles their school setting. B. children are continually intermixed with the younger children. C. outdoor area allows them to continually

210. ## English

I forgot to include the following sentences. Thank you. 1) The last theme concern the fundamental questions whether time is preordained or the result of human activity. 2) The three witches stand for evil and are linked to the theme of equivocation. 3)

211. ## chemistry

I need help on a few of these. A. How many protons are in one atom of fluorine - 19? B. How many neutrons are in one atom of potassium - 39? C. How many electrons are in one neutral atom of V - 51? D. What is the symbol for the element that has 78 protons?

margie pagano is buying a car. her june payment monthly interest at 13.2% was \$208. what was margie principal balance at the beginning of june

213. ## chemistry

The solubility of Mg(OH)2 in a particular buffer solution is 0.66g/L . What must be the pH of the buffer solution?

214. ## Chemistry

Determine the pH of 263 ml of solution which has [NH 4I] = 0.300 M. Kb = 1.74 × 10-5 for NH3(aq)

215. ## smk n2

Tent. sudut yang lebih kecil dari perpotongan bidang 5x-14y+2z-8=0 dan 10x-11y+2z+5=0 (tent sudut antara normal-normalnya)

216. ## English - Native speakers

Can we then say He may have come yesterday or just He might have come yesterday? Can we use may in the past tense or not?

217. ## chemistry

A solution is 2.0×10−2M in both chromate and sulfate anions and . To this solution, 0.55M Pb(NO)3 is slowly added. What is [Pb2+] at the point at which the second anion begins to precipitate (in M)? The second anion being the, sulfate anion.

218. ## Chemistry

How many moles are in 51 g of (NH4)2SO4

219. ## chem

how can you tell if two reactants will make a buffer?

220. ## half life

tritium has a half life of 24.3 years .a sample of 0.1 is produced . will tthe mass of tritium change after 24.3 years

221. ## MATH

On my homework it says write the ratios.Explain what your ratios show. Chocolate 6 vanilla 1 Strawberry 3

222. ## French - Exercise - Superlative

I have to do a writing prompt on Superlatives. And here's the instructions. Imagine that you are one of the animals in the Zoo in Paris. Give your name, age, and tell where you live. Describe some of your favourite animal friends at the Zoo - Saying who's

223. ## GENERAL ISLAMIC

A wife has applied farsakh in the syariah court. Then later she moved out of the home. The husband, a practicing Islamic worker disagrees with the wife’s action and accused her wife of nusyuz. He said the wife is just being intolerant and having negative

225. ## English

Do you want to lose weight? Just wear FatSox. These special socks will suck the fat out of your feet as they sweat. After use, just take them off and wash the fat away. It's simple and easy. (In this passage, what does "It" refer to in the last sentence?)

226. ## Social Sciences

I am writing a paper about a new amendment proposal to the Bill of Rights proclaiming that people should be able to marry who they want (same sex or not). I need an opening statement that declares the amendment in congressional form and is a paragraph

227. ## math

Triangle LMN hes vertices at L(-4,-3), M(2,5), and N(-13,10). If the distance from point P(x,-2) to L equals the distance from P to M, what is the value of x?

228. ## Physics pls help

A proton is moving in a circular orbit of radius 11.8 cm in a uniform magnetic field of magnitude 0.232 T directed perpendicular to the velocity of the proton. Find the orbital speed of the proton. Answer in units of m/s. I came up with .118/2.83x10^-7 and

lane french had a bad credit rating and went to a local cash center. he took out a \$119 loan payable in five weeks at \$129. what is the percent of interest paid on this loan?

230. ## Math

The top of a table is in the shape.of a regulations pentagon. The wood should measure 1 1/2 feet on each side. What is the perimeter of the piece of wood?

231. ## Chemistry

How much heat is emitted when 4.55 of water condenses at 25 ? The heat of vaporization of water at 25 is 44.0 .

232. ## Chemistry

Use the equation to determine what volume of nitrous oxide can be produced from the decomposition of o.55 moles of ammonium nitrate useing the equation: NH4NO3 (s)--> N2O (g) + 2H2O (g)

233. ## Physics - pls help

A heavy conductor (mass m, length `, resistance R) is suspended by two springs each with spring constant k, and connected to a battery with electric potential V as shown in the figure. A magnetic field ~B is now imposed. The acceleration of gravity is 9.8

234. ## algebra

Make up a word problem that uses a quadratic function and requires finding either a maxiumum or minimum value.?

Consider the parameterization of the unit circle given by x=cos(4t^2−t), y=sin(4t^2−t) for t in (−InF, INF). Describe in words and sketch how the circle is traced out, and use this to answer the following questions. (a) When is the parameterization

236. ## Japanese

How do I say: 1. I wake up at 6:00 2. I eat breakfast at 6:30 3. I go to school at 8:15 4. I use a car 5. I have lunch at 1:05 6. I do homework after school 7. I have dinner at 6:30 8. I watch Biggest Loser before bed 9. I go to sleep at 8:30

237. ## Math

compound and interest Using the below values please calculate the amount accumulated (future value) *Initial principal=\$2000 *Interest Rate=9% *Number of years 7 *Monthly compounding

238. ## chemistry

How much energy is needed to raise 20.0g H2O from 10.0oC to 75.0oC. The specific heat of water is 4.18 J/gC.

239. ## Chemistry

Determine the pH of 263 ml of solution which has [NH 4I] = 0.300 M. Kb = 1.74 × 10-5 for NH3(aq)

240. ## chemistry

Which of the following statements are true? Fusion reactions result in nuclei with higher Z. To keep a nuclear power plant going, a chain reaction must be maintained. Nuclear fusion produces no long-lived radioactive by-products. The Sun is a nuclear

241. ## world history

how did alfred the great secure his modern reputation as a state builder?

242. ## math

For the given linear prgramming problem, write down the objective function and the constraints. Kris is trying to make his business more efficient by having a system of both large and small vans. He can spend no more than \$100,000 for both type of vans and

243. ## Pre calculus

bit strings of a fixed length are needed to form a code. what is the minimum length of the string is one string is needed to represent each letter of the alphabet and each decimal digit?

244. ## physics

While watching ocean waves at the dock of the bay, Otis notices that 13 waves pass beneath him in 32 seconds. He also notices that the crests of successive waves exactly coincide with the posts that are 7 meters apart. What are the period, frequency,

245. ## Chemistry

describe an experimental design that you might use to determine the effect of temperature on reaction rate.

246. ## finance

Metropolis currently has \$1,150,000 in cash. How long would it take them to accumulate \$2,000,000 in cash? Assume an interest rate of 5%.

247. ## math-Probablity

Hi, just a few stupid questions about probability. 1. How many different license plates can there be if there is a total of 7 letters (no numbers) (and I'm assuming this has a something to do with permutation. 2. How many different batting line ups can be

248. ## Math

A choir has 6,000 cans and the recycling center offers \$2 for 500 cans. How much will the choir earn?

249. ## Bus 303

. List one external factor that you feel has a powerful influence on your company's HRM function and explain why.

250. ## statistics ***pls help!

for each of the following, assume the 2 samples are selected from populations with equal means and calculate how much difference should be expected, on average, between the 2 sample means. a)each sample has n = 5 scores with s^2 = 38 for the first sample,

251. ## chemistry

why solution always prepared in HCl and not in HNO3 ?????????

252. ## Law

What do you think the right to a fair and impartial jury as mentioned in the Sixth Amendment entails? Do you believe it means having a jury consisting of diverse members? Or, do you believe it means a jury with members similar (in terms of occupation and