# Questions Asked onNovember 6, 2012

1. ## Math for Steve

1. Identify the part, whole, and percent in the following statement: Find 15% of 750. a. part = 750, whole = n, percent = 15 b. part = 15, whole = 750, percent = p c. part = n, whole = 750, percent = 15 d. none of these 2. Write a percent equation that can

Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (1 point) A) (–2, 4) and (6, 6) B) (2, 4) and (6, 6) C)(–2, 4) and (6, –6) D)(2, –1) and (–3, 3) 2. Given a scale factor

3. ## English 4

Hamlet Act 1 scene 1-4 Most of the advice Polonius gives Laertes concerns etiquette and ways to make a good impression on other people. Name the precept from Polonius's farewell speech to his son that seems to contain the best advice on how to be a good

4. ## Chemistry

Write a balanced equation for the combustion of gaseous ethane (C2H6) a minority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

5. ## economics

Could someone check my work? Please When the government attempts to cover large deficits by creating more money, what is the probable result called? government borrowing hyperinflation (my choice) excess currency full employment 2. What is one of the major

6. ## chemistry

For which of the following mixtures will Ag2SO4(s) (Ksp=1.20E^-5)precipitate? More than one answer can be selected. a.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.20 M AgNO3(aq) b.) 150.0 mL of 0.10 M Na2SO4(aq) and 5.0 mL of 0.30 M AgNO3(aq) c.) 150.0

7. ## physics

A small sphere of mass m = 7.50 g and charge q1 = 32.0 nC is attached to the end of a string and hangs vertically as shown in the figure. A second charge of equal mass and charge q2 = –58.0 nC is located a distance d = 2.00 cm below the first charge. (a)

8. ## Chemistry

Write a balanced equation for the incomplete combustion of gaseous pentane (C5H12) which combines gaseous oxygen to form carbon dioxide, gaseous water and carbon monoxide.

9. ## physics

A car is rounding a curve that is the arc of a circle with a radius of r . If the car has a constant speed of 10 m/s, and its acceleration is 5 m/s 2 , what is the radius of the curve?

10. ## math

The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle

11. ## Physics

To move a box you pull on the handle as indicated in the diagram shown below with a constant force F. The mass of the box is m = 8 kg and the angle è = 22°. What is the magnitude of the normal force?

12. ## physical science

A 30.0kg child standing from rest slides down a water slide with a vertical height of 10.0m. What is the childs speed (a)halfway down he slides vertical distance and (b)three-fourths of the way down? (Neglect friction?

13. ## Physics... URGENT !!!!

A 66.7-kN car is travelling at 66.5 mph when the driver decides to exit the freeway by going up a ramp. After coasting 418 m along the exit ramp the car\'s speed is 28.9 mph, and it is h = 13.1 m above the freeway. What is the magnitude of the average drag

14. ## algebra

What is the expression in factored form? 2x^2+16x+24

15. ## Chemistry

Consider the reaction CaSO4(s)rightleftharpoons Ca^2+(aq)+ SO_4^2-(aq) At 25 C the equilibrium constant is Kc = 2.4 \times 10^-5 for this reaction. If excess CaSO4(s) is mixed with water at 25C to produce a saturated solution of CaSO4, what are the

16. ## Finance

The following information was available as of the close of business June 1, 2004 on government of Canada bonds. Coupon...Maturity.....Price.....Yield 5.00%......June 1, 2005......102.35......2.60 10.50%......June 1, 2006......113.91......3.26

17. ## Physics

Consider the 56 N weight held by two cables shown below. The left hand cable is horizontal. What is the tension in the cable slanted at an angle of 38degrees

18. ## algebra

What is the vertex form of the equation? y=-x^2+12x-4

A 10.0 kg cylinder rolls without slipping on a rough surface. At an instant when its center of gravity has a speed of 16.0 m/s, determine (a) the translational kinetic energy of its center of gravity.(b) the rotational kinetic energy about its center of

20. ## Chemistry

Aspirin is prepared by heating salicylic acid, C7H6O3, with acetic anhydride, C4H603. The other product produced is acetic acid, C2H402. C7H6O3+C4H6)3->C9H8O4+C2H4O2 What is the theoretical yield in grams of aspirin, C9H8O4, when 2.00 grams of salicylic

21. ## physics

From the moment a 42 m/s fastball touches the catcher's mitt until its completely stopped takes 0.014 s. Calculate the average acceleration of the ball as it is being caught.

22. ## Chemistry

Which of the following gases will effuse through a hole in a balloon fastest? a.Kr b.NO c.N2O d.NO2 e.ArNO2

23. ## Chemistry

How would I go about creating a Lewis Dot structure for the Calcium Carbonate and Magnesium Hydroxide? I know how to do it for any compound with two elements such as SF5, but I don't know how to approach it when there's a polyatomic ion involved and there

24. ## physics

A beam of microwaves with wavelength= 1 mm is incident upon a 9 cm slit. At a distance of 2 m from the slit, what is the approximate width of the slit's image?

25. ## Geometry

BC has endpoints B(5,9) and C(-4,-3). Find the coordinates of the midpoint of BC.

26. ## english

At his entrance before the king, all the people gave a great shout. The queen of Appamatuck was appointed to bring him water to wash his hands, and another brought him a bunch of feathers, instead of a towel to dry them: having feasted him after their best

27. ## geometry

Triangle lmn is congruent to hij. Angle l measures 35 and angle m measures 65 and angle j measures 2x. Find the value of x

28. ## Finance

A salesperson in a furniture store receives a weekly salary of $1,250. She also earns a commission of 6% on all sales for the week and a bonus of 2% on all sales above$5,000 for the week. How much would she earn if her total sales for the week were

29. ## Physics

Two skaters, Elena and Tara, face each other on the ice. Elena has a mass of 57.4 kg, and Tara has a mass of 48.3 kg. Both are motionless until they push away with a force of 33 N. Then Elena has a velocity of 1.4 m/s. What is Tara’s velocity?

30. ## Chemistry

If a .01M Mn(NO3)2 solution has an ammonia concentration of 6M, would a precipitate form? Calculate the ion product and compare to Ksp. I'm way too confused. I'm pretty sure a precipitate would form so I set up an ice table but don't know where to go from

31. ## physics

A student moves a box of books down the hall by pulling on a rope attached to the box. The student pulls with a force of 173 N at an angle of 27.5 above the horizontal. The box has a mass of 27 kg, and μk between the box and the floor is 0.2. The

32. ## pre-calc

two observers 3 miles apart and facing each other find that the angles of the elevation of a balloon in the same vertical plane with themselves are 28degree and 31 degree respectively.find the distance from the balloon to the observer located at the 31

33. ## math VERY URGENT+IMPORTANT

Farmer McDonald is building a fence. He will place posts six feet apart and stretch the wire fencing between the posts. If his pasture is thirty-six feet long and twelve feet across, how many posts will he need? Please help immediately1

34. ## geometry

A regular heptagon has an apothem of approximately 6.5 ft and a perimeter of approximately 44.1 ft . Based on these measurements, what is the area of the heptagon?

35. ## Physics

A 15 kg uniform ladder leans againt a wall in the atrium of a large hotel. The ladder is 8m long, and it makes an angle as 60 degree with the floor. The coefficient of static friction between the floor and the ladder is u+ 0.45. Assume the wall is

36. ## GRAMMAR

THE PATIENT WAS PLACED IN THE WHEELCHAIR WITH THE FRACTURED TIBIA WHAT KIND OF AGREEMENT ERROR IS IT

37. ## Science

2. Which statement is true of P-waves? a. They travel the fastest through rocks. b. They vibrate at 90° to the wave motion. c. They are last to reach the epicenter. d. They are the most damaging. 4. When rocks break, they cause _____ that move throughout

38. ## Chemistry

How many moles of propane are contained in a 5.00 L tank at 450 torr and 25°C?

39. ## geometry

can someone help please? Find the measure of the smallest angle, ∠HFG, if ∠ GHF = 92° and ∠HGF = 72°. 16 20 26 15

40. ## physics

Consider the 57 N weight held by two cables shown below. The left-hand cable is horizon- tal. 57 N 52 a) What is the tension in the cable slanted at an angle of 52? Answer in units of N

41. ## Physics Help!

An automobile fuel tank is filled to the brim with 45.3 liters (12.1 gallon) of gasoline at 14.5 degrees C. Immediately afterward, the vehicle is parked in the Sun, where the temperature is 34.5 degrees C. How much gasoline (in Liter) overflows from the

42. ## physics

A sled whose total mass with cargo is 30.0 kg rests on ice. The coefficient of static friction is 0.20, and the coefficient of kinetic friction is 0.15. The sled is attached to a rope, horizontally, in which the tension force is slowly increased. How much

43. ## physics

A small sphere of charge q = +68 ƒÝC and mass m = 5.8 g is attached to a light string and placed in a uniform electric field E that makes an angle ƒá = 37„a with the horizontal. The opposite end of the string is attached to a wall and the sphere is

44. ## Chemistry

Diethyl ether is a volatile organic compound. the vapor pressure of diethyl ether is 401 mm Hg at 18 degrees celsius and the change in H vapor = 26.0 kJ/mol. Calculate the vappor pressure of diethyl ether at 25 degrees C.

45. ## math

Write each ratio as a fraction in simplest form. 1. 3 sailboats to 6 fan boats

46. ## english

I have to write these sentence with the same meaning. Can anybody look them up, please? 1. We will refund your booking fee, provided you cancel 48 hours in advance. -> We will only refund your booking fee, if you cancel 48 hours in advance. 2. I wish you

47. ## Chemistry

The gas sulfur dioxide, SO2, oxidizes to form another gas, sulfur trioxide, SO3. How many oxygen atoms are present in 3.20 g of sulfir trioxide?

48. ## Chemistry

The combustion of ethane: 2 C2H6 (g) + 7 O2 (g) ---> 4 CO2 (g) + 6 H2O (g) At the same temperature and pressure, what is the maximum volume in liters of carbon dioxide that can be obtained from 15.9 L of ethane and 52.3 L of oxygen?

49. ## world history

What factors helped spur European exploration?

50. ## Science

Why are dog fleas more successful parasites than bacteria that causes deadly diseases?

51. ## algebra

what happened when the crossword puzzle champion died? anwsers to this would really help me

52. ## Physics HELP!

A war-wolf, or trebuchet, is a device used during the Middle Ages to throw rocks at castles and now sometimes used to fling pumpkins and pianos. A simple trebuchet is shown in the figure. Model it as a stiff rod of negligible mass 3.00 m long and joining

53. ## chemistry

Consider the equation: 2NO2(g) N2O4(g). Using ONLY the information given by the equation which of the following changes would increase the molar concentration at equilibrium of the product N2O4(g)?

54. ## Math

A state creates license plates that each contain two letters followed by three digits. The first letter must be a vowel ( A, E, I, O, U ) and duplicate letters and digits are allowed. How many different license plates are possible?

55. ## physics

A 1,660 kg car is parked on a hill with a slope of 8.0°. Its brakes and transmission are locked in position to keep the car from rolling. The coefficient of static friction of the rubber tires on the asphalt road is 0.14. What is the force of static

56. ## pre-calc

two lighthouses A and B are positioned along the coast.A ship is positioned 30 miles from lighthouse A and 40 miles from lighthouse B.The angle between the line of sight from the ship to lighthouse A and the line of sight to lighthouse B is 33 degree. what

57. ## physics

An 8 g bullet is shot into a 4.0 kg block, at rest on a frictionless horizontal surface. The bullet remains lodged in the block. The block moves into a spring and compresses it by 7.9 cm. The force constant of the spring is 1400 N/m. What is the impulse of

When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects. Is this correct or does it have bad speeling ?

59. ## physics

A 10.4 kg object oscillates at the end of a vertical spring that has a spring constant of 17500 N/m. The effect of air resistance is represented by the damping coefficient b = 3.00 N¡¤s/m.

60. ## physics

a jet plane traveling at +87 m/s lands on a runway and comes to ret in 11 s. a)Calculate its uniform acceleration b)Calculate the distance it travels

A painter climbs a ladder leaning against a smooth wall. At a certain height, the ladder is on the verge of slipping. Let the mass of the painter be 69.0 kg, length = 2.80 m, the ladder’s mass to be 21.0 kg, θ = 57.0°, and the coefficient of friction

62. ## Chemistry

What is the root-mean-square speed of N2O at 25°C?

63. ## chem urgent!

Set up a Hess's law cycle, and use the following information to calculate ÄH°f for aqueous nitric acid, HNO3(aq). You will need to use fractional coefficients for some equations. 3 NO2(g) + H2O(l) 2 HNO3(aq) + NO(g) ÄH° = -138.4 kJ 2 NO(g) + O2(g) 2

64. ## physics

calculate the electric flux through the curved surface and base of a right hollow cone of height h and base radius r when charge q is placed at its vertex?

65. ## Chemistry

Which of the following reactions will result in a reduced total pressure? a. CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) c. 2HI(g) → H2(g) + I2(g) b. 2N2O(g) → 2N2(g) + O2(g) d. 2H2(g) + O2(g) → 2H2O()

66. ## Physics HELP!

A solid, horizontal cylinder of mass 11.0 kg and radius 1.70 m rotates with an angular speed of 5.10 rad/s about a fixed vertical axis through its center. A 1.21 kg piece of putty is dropped vertically onto the cylinder at a point 0.600 m from the center

67. ## Physics

A 9.00 kg mass is connected by a light cord to a 1.00 kg mass on a smooth surface as shown in the figure. The pulley rotates about a frictionless axle and has a moment of inertia of 0.300 k∙m2 and a radius of 0.500 m. Assuming that the cord does not slip

68. ## physics

In a skating stunt known as crack-the-whip, a number of skaters hold hands and form a straight line. They try to skate so that the line rotates about the skater at one end, who acts as the pivot. The skater farthest out has a mass of 80.0 kg and is 5.35 m

69. ## Physics Help!

The New River Gorge bridge in West Virginia is a 514 m long steel arch. How much will its length change between temperature extremes -20.3 degrees C and 32.7 degrees C

70. ## Valencia

2.0L of a 2.0M HCl solution is added to water so that the final volume is 6.0L

71. ## physics

a jet plane traveling at +87 m/s lands on a runway and comes to rest in 11 s. a)Calculate its uniform acceleration b)Calculate the distance it travels

72. ## Physics

A 2.01 kg block starts from rest at the top of a 25.8degree incline and accelerates uniformly down the incline, moving 2.13m in 2.98 seconds. What is the magnitude of the acceleration of the block?

A painter climbs a ladder leaning against a smooth wall. At a certain height, the ladder is on the verge of slipping. Let the mass of the painter be 69.0 kg, length = 2.80 m, the ladder’s mass to be 21.0 kg, θ = 57.0°, and the coefficient of friction

74. ## Chemistry

The density of an unknown gas is 1.72 g/L at 750.0 torr and 30.0°C. Which of the following could be the unknown gas? a. CS2 b. NO c. N2O d. NH3 e. N02

75. ## Chemistry

A sample of hydrogen is collected over water at a total pressure of 648 mm Hg at 22 oC. The vapor pressure of water at 22 oC is 19.8 mm Hg. The partial pressure of the hydrogen is __________.

76. ## Physics B

Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A 41.1 kg mass is placed midway between them. 0.482 m b b 105 kg 41.1 kg 528 kg Find the magnitude of the net gravitational force exerted by the two larger masses on the 41.1 kg mass. The

77. ## trigonometry

2cotx + 1 = -1 over [0,2pi)

78. ## chem

(a) When a 4.75-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter (see figure), the temperature drops from 23.0‹C to 16.6‹C. Calculate ƒ¢H (in kJ/mol NH4NO3) for the solution process NH4NO3(s) ¨

79. ## Physics

A box of books weighing 328N moves with a constant velocity across the floor when it is paged with a force of 385N exerted downward at an angle of 25.3 below the horizontal. Find muK between the box and the floor

Consider the following equations. N2H4(l) + O2(g) N2(g) + 2 H2O(l) ÄH = -622.2 kJ H2(g) + 1/2 O2(g) H2O(l) ÄH = -258.5 kJ H2(g) + O2(g) H2O2(l) ÄH = -187.8 kJ Use this information to calculate the enthalpy change for the reaction shown below. N2H4(l) +

81. ## Math

Teresa has 4 flower pots in 4 different designs she likes to display her flower pots in different position on her window sill how many ways can she place her flower pots?

82. ## Statistics

To conduct a valid regression analysis, both x and y must be approximately normally distributed. True False

83. ## chem- i reallyneed help

Consider the following equations. N2H4(l) + O2(g) N2(g) + 2 H2O(l) ÄH = -622.2 kJ H2(g) + 1/2 O2(g) H2O(l) ÄH = -258.5 kJ H2(g) + O2(g) H2O2(l) ÄH = -187.8 kJ Use this information to calculate the enthalpy change for the reaction shown below. N2H4(l) +

109. ## English - Classics

I've been writing a personal response on the Great Gatsby and need some specific examples of how my idea "Money does not equal happiness" or "Money corrupts" is relevant to today/today's society

110. ## math

A carpet measures 6 meters and 5 decimeters in length by 3 meters and 2 decimeters in width. What is its area in square meters?

111. ## algebra

come up with 2 real world examples of situations that use function rules. think about daily life, your home, or the community you live in for ideas.

112. ## Psychology

Your body's reaction to the stress you have been under for the past two weeks is that you have become more tired and now have a sore throat. What is this called? Object–relations theory Opponent–process theory Two–factory theory Type B behavior

113. ## accounting

Analyze and record, in the form of T Accounts, Mr. James' transactions: Jan 1: Amount invested in the business $10,000 Jan 7: Bought equipment for$500 Jan 9: Bought office furniture with $2,000 cash Jan 10: Bought materials with$2,000 cash Jan 17: Sold

114. ## algebra

a rectangular solid has a volume of 640 cubic units. the width is 3 units more than the height and the length is 1 unit more than three times the height. find the dimensions of the solid.

115. ## economics

3.Determine if the demand for the following products is price elastic or price inelastic, and explain your answer. In your explanation, be sure to include how the necessity of a good and the availability of substitutes affect the price elasticity of demand

116. ## Math

Stephanie got a travel pack of 4 aspirin each 500 ml. How many total grams are in the pack 0.5? A box of specialty baking flour holds 2 kg. How many angel food cakes can be made with a recipe that calls for 100 grams of flour? 0.1? Joey walks 4 kilometers

117. ## Physics

How do you calculate the resultant force of 2 soccer balls, kicked at the same time, one with a force of 60N and the other 85N?

118. ## CHEMISTRY: URGENT

1) the element Q has the electronic configuration 1S2, 2S2, 2p6, 3s2, 3p6, 4s2 3d10, 4p1. Write the atomic #. Q exist as 69Q and 71Q. What is the significance of the 2 #'s. What does it mean. B) find the atomic mass if 69Q is 60% anf 71Q is 40%

119. ## visual

which one of the following is an advantage of setting up a family day care home

120. ## chemistry

An ideal gas in a sealed container has an initial volume of 2.50 L. At constant pressure, it is cooled to 14.00 °C where its final volume is 1.85 L. What was the initial temperature?

consider the factorsw from the situationa leadership theory outlined in figure 12.4. Apply these factors to Facobs and Windber

31x19=

123. ## English

Subject: Buying a House Is "Steps in Buying A House" a good thesis.

124. ## Algebra

Sunny received 90 on his math test. If he got x number of 3 point problems and y number of 5 point problems correct, write an equation for y in terms of x. Also write an equation for x in terms of y

125. ## pre-calc

a lifeguard sits on the lifeguard stand that is about eight feet high.he suddenly notices that a swimmer is struggling in the water.the angle between the base of the lifeguard stand and the swimmer is about 102 degree,and the straight line distance between

126. ## Chemistry

Is this always true, sometime true, or never true? The orbitals of a principal energy level are lower in energy than the orbitals in the next higher principal energy level. -I'm thinking sometime true but I can't figure out how to explain why it sometime

127. ## Physics

a 14.0 N·m torque on a wheel causes angular acceleration 11.3 rad/s2, what is the wheel's rotational inertia?

128. ## Math

A bicycle travels 42 meters for every 20 revolutions of the wheel. How many revolutions would the wheel make in a kilometer?

129. ## science

Two blocks of different temperatures are brought together. Block A is a 360.0-kg block is made of Material X which has a temperature-dependent specific heat. Its initial temperature is TA = 200.0¡ã C. Block B is a 1000.0-kg iron block with an initial

130. ## algebra 2

3x+2y=12 x-2y=4

131. ## physics

A car travels at a constant speed around a circular track whose radius is 2.1 km. The car goes once around the track in 320 s. What is the magnitude of the centripetal acceleration of the car? 1 m/s2

132. ## math

During the playoffs you score 2 goals per game. By the end of the second playoff game you had 22 goals for the year. Find an equation that gives you the total number of goals scored for the year in terms of the number of playoff games. How many goals did

Are the ratios 4/6 and 14/21 equivalent or not equivalent? Why?

134. ## math

I am a number between 75 and 150. My tens digit is three times my ones digit. The sum of my digits is 5. My hundreds digit and my ones digit are the same.

135. ## Physics B

Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A 41.1 kg mass is placed midway between them. 0.482 m b b 105 kg 41.1 kg 528 kg Find the magnitude of the net gravitational force exerted by the two larger masses on the 41.1 kg mass. The

136. ## Chem

How many grams of CO2 can be produced when 200 g of C5H12 are reacted with 300 g of O2?

137. ## Chemistry

Which of the following will result in a chemical change?

138. ## History

What was the contribution of Alexander the great to the world today?

139. ## Physics

two satellites are launched from earth to the same altitude. One is twice the mass of the other. How will their periods compare?

140. ## world history

What was the type of monarchy where rulers are limited by law?

A large grinding wheel in the shape of a solid cylinder of radius 0.450m is free to rotate on a frictionless, vertical axle. A constant tangential force of 180 N applied to its edge causes the wheel to have an angular acceleration of 0.870 rad/s2. (a) What

142. ## geography

Southeast Asia, which seas lie to the east and west of the Phillipines?

143. ## Math

A bicycle travels 42 meters for every 20 revolutions of the wheel. How many revolutions would the wheel make in a kilometer?

144. ## math

Ashley needs $30 more in order to buy a concert ticket. she has saved money from her birthday and christmas presents. Her b-day present was 1.5 times the amount of her christmas present. Her b-day present was$60. if she saved 80% of her presents, how much

145. ## Math Statistics

The mean height of Pat, Dex, Allan, Dan and Roy is 68 inches. If George is included in the group, the mean height becomes 67 inches. How tall is George?

146. ## chemistry

a pressure of 96.5Kpa is exerted by a mixture of nitrogen gas and water vapor in a equilibrium with liquid water at 18 degree celcius , what is the partial pressure exerted by the nitrogen gas?

147. ## Finance

A dealer in government securities currently holds $875 million in 10-year Treasury bonds and$1,410 million in 6-month Treasury bills. Current yields on the T-bonds average 7.15 percent while 6-month T-bill yields average 3.38 percent. The dealer is

148. ## chemistry 30 concentration of a product

calculate the concentration of the products of the following equilibrium when the equilibrium constant is 12.3 and the equilibrium concentration of nobr2 is 2.17 mol/l

149. ## Math

2-sin^20/cos0 = sec0 + cos0 * 0 = Theta

150. ## Statistics

The residual sum of the squares is the numerator portion of the formula for the variance of y about the regression line. True False

151. ## Chemistry

what mass of nitrogen dioxide (8NO2) will form by reaction of 3.50 mole of perchloric acid (13HClO4) with excess methylamine (8CH3NH2)? Answer is 99.1 g. How do you work this?

152. ## physics

A small sphere of charge q = +68 ƒÝC and mass m = 5.8 g is attached to a light string and placed in a uniform electric field E that makes an angle ƒá = 37„a with the horizontal. The opposite end of the string is attached to a wall and the sphere is

153. ## statistics.. URGENT!! PLZ!!

In a learning experiment, untrained mice are placed in a maze and the time required for each mouse to exit the maze is recorded. The average time for untrained mice to exit the maze is µ = 50 seconds and the standard deviation of their times is ? = 16

154. ## Math

I am less than 100. The sum of my digits is 8. If you divide me dy 2,Iam an even number. My tens digit and my ones digit are the same

155. ## CHEM EQB

How many ml of 0.2M NaH2PO4 should b added to 40 mL of 0.1M Na3PO4 to make the buffer pH 7.2. Ka1:1.1 x 10^-2 Ka2:7.5 x 10^-8 Ka3:4.8 x 10^-13

156. ## math

Consider the relation R = (a,b),(a,c),(c,c),(b,b),(c,b),(b,c) on the set A = a,b. Is R reflexive? Symmetric? Transitive? and why or why not.

157. ## Algebra

4y^2-3ay+8y-6a. How to factor

158. ## English 8R - Reflections help!!!!

I can't think of a topic to write for the Reflections This is not an English assignment and plus the deadline is 11/14/12, I just want to write the essay. I'm already doing visual arts but I want to try the literature the theme is "The Magic of a Moment" I

159. ## Pre Calc

How to prove tan4x = 1-8 sin squared of cos squared of x

160. ## Chemistry

convert 458166 atoms of H20 to moles

162. ## Social studies

Where can I get the information about the origin of Thanksgiving Day in detail? There are questions related Pilgrim Fathers who left for the nes land. Would you answer them, please? 1. Where did they (Pilgrim Fathers) leave for the North America? 2. Did

163. ## math

bill and ted combined age is 40. Eight years ago, bill was 2 years younger than ted is now. how old is bill now?

Consider the following mass distribution, where x- and y- coordinates are given in meters: 7.0 kg at (0.0, 0.0) m, 3.0 kg at (0.0, 5.0) m, and 7.0 kg at (4.0, 0.0) m. Where should a fourth object of 5.0 kg be placed so that the center of gravity of the

165. ## math

A product is on sale for 30% off of normal selling price of $12.00 per unit and each unit cost is$5.00. What is the gross profit percentage?

166. ## Physics Help!

Find the total kinetic energy content of 1.55 moles of an ideal gas at temperature 435 K

167. ## college algebra

given the folowing quadratic equations find the vertex the axis of symmetry the intercept the domain the range the interval where the function is increasing andthe interval where the function is decreasing graph the function y=X^2+4x

168. ## Math Statistics

The height of four students are as follows: Pat - 112, Gerald - 123, Mark -100, Ricky - 125, Roy - 143. If Jon is included, the mean height would be 110. What is Jon's Height?

169. ## college algebra

given the following rational, find the horizontal asympotes the vertical asymptotes if any and the oblique asymptotes if any f(x)=x^2-x-2 over 2x^2-x-10

170. ## Maths

The sum of 5 numbers is p. If each number is increased by 40, what is the new sum of numbers?

171. ## Stat Help

The Momoland Springs Company claims that there are at most 1 ppm (parts per million) of benzene in their water. Test at a=.10 n=25 = 1.10 ppm s = .20 ppm

172. ## physics

A solid disk of radius 0.20 m and a mass of 1.0 kg starts at rest and then speeds up to 100 rad/s in 10s. What is the torque that produces this rotational acceleration?

173. ## physics

A solid disk of radius 0.20 m and a mass of 1.0 kg starts at rest and then speeds up to 100 rad/s in 10s. What is the torque that produces this rotational acceleration?

174. ## Maths

There were 40 members in a hockey club. 3/8 of them were girls. When more girls joined the club, the percentage of the number of girls increased to 75%. How many more girls had joined the club? Some teachers attended a workshop. They were divided into

175. ## computer science

write RTL code for the following 1 bit transition and draw the corresponding logic circuit using D flip-flops: a) if a=1 then copy X to W; other wise copy X to Z b)if a =1 then copy Yto X; other wise copy Y' to X.

176. ## computer science

x is a 16 bit register and x = 8395h. what is the result of the following operation in hexadecimal notation? a: shr(x) b: cil(X) c: ashl(x) d: dshr(x)

177. ## math

In scientific notation, a number is written as the product of a coefficient and the number 10 raised to a power. True False

178. ## science

The density of a substance with a mass of 90g is 2 g/cm cubed. What is the volume?

179. ## college math

loverdale-Nurseries obtained a $60,000 loan at 7.5% compounded monthly to build an additional greenhouse. Construct a partial amortization schedule for payments of$1000 per month (except for a smaller final payment)showing details of the first 2 payments.

180. ## Chem:DrBob

Dr.Bob, yesterday you told me : "The best way I think is to show examples. 12Mg = 1s2 2s2 2p6 3s2 Here the 1s orbital is lower than the 2s and they are lower than the 3s etc." 19K = 1s2 2s2 2p6 3s2 3p6 3d0 4s2 Here the 1s is lower than the 2s and those are

181. ## English 8R - help!!!!!

the princess diaries movie "reviews" in quotes???? you know how in movies trailers they say the movie review quotes "5 star" or "best film this year" I couldn't find any movie reviews in quotes can you help me, i need about at least 3 for my movie poster

182. ## math

whole number for 30.089

183. ## algebra

Use the quadratic formula to solve the equation. x^2-7x-6=0

184. ## math

destiny is going to build a patio. she wants the patio to be 20 feet by 35 feet. what is the perimeter of the patio in yards?

185. ## algebra

What are the solutions? 1/2x^2+2x+3=0

186. ## High school

Maths;{2X-2Y=4+{3X+4Y=6

187. ## calculus

Find the equation of a straight line that passes through a point (1,5) and tangent to curve y = x^3

188. ## a;gebra

The perimeter of a rectangle is 34 ft. The length is 1 ft longer than the width. Find the dimensions. Write a system of linear equation and solve the resulting system. Let x be the length and y be the width. 2x+2y=

189. ## math question

What is 0.8 x 12 and what is 0.10 x 12?

190. ## Physics Help!

Gas is contained in an 8.45 liter vessel at a temperature of 19.8oC and a pressure of 8.70 atm. Determine the number of moles of gas in the vessel. Do not enter units.

191. ## history

i need help finding a map of the 7 natural wonders of the world.

192. ## precal

Find the Difference quotient: 4/(x-3)^2

193. ## Math Statistics

Kesha's mean grade for the first two terms was 74. What grade must she get in the third term to get an exact passing average of 75?

A company claims that cancer patients using drug X will live at least 8 more years. n=25 = 8.5 year s = 1.5 year a) Test at a=.01 b) Give the CIE at 95%

195. ## AP Calc for Reiny

You did just fine and your second derivative is correct, if you meant (6y^2 - 4x^2)/(9y^3) except they took it a bit further. notice your numerator is -4x^2 + 6y^2 from the original 2x^2 - 3y^2 = 4 , then 4x^2 - 6y^2 = 8 , and -4x^2 + 6y^2 = -8 to get

196. ## biology

What is the different between tissue-specific knockout mouse and an inducible knockout mouse

197. ## AP Calc for Reiny

You did just fine and your second derivative is correct, if you meant (6y^2 - 4x^2)/(9y^3) except they took it a bit further. notice your numerator is -4x^2 + 6y^2 from the original 2x^2 - 3y^2 = 4 , then 4x^2 - 6y^2 = 8 , and -4x^2 + 6y^2 = -8 to get

198. ## Maths

There are a total of 70 pebbles in Bag A and Bag B. There are a total of 120 pebbles in Bag B and Bag C. Bag C contains 3 times as many pebbles as Bag A. How many pebbles are there in Bag B? There were 27 pineapple tarts and murukus. The ratio of the

199. ## geometry

Need help on perpendicular bisectors!:(

200. ## social studies

were longhouses mobile

201. ## any

Unscramble into three words. tbhlsfsffyleuriaoit

Calculate the interest on a $1700 credit card bill that shows a 22% APR, using the average daily balance method. Assume you sent a payment of$375 on the first day of a month that has 30 days and it takes 5 days for this payment to be received and

203. ## social

social behaviour perspectives?

204. ## Chemistry

what mass of water will be formed by reaction of 3.50g of methylamine (8CH3NH2) with 15.0g of perchloric acid (13HClO4)? Answer is 99.1. How do you work this?

205. ## calc 1

Water is leaking out of an inverted conical tank at a rate of 500.000 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 8.000 meters and the diameter at the top is 6.500 meters. If

206. ## Science

Waht animals are in the Nile Delta? I already have crocodile & hippo. I need 1 more mammal, a type of fish, and an insect.

207. ## chemistry

How many grams of K2HPO4 are there in a teaspoon? Tablespoon? How do I figure this out?

208. ## math

what is a word phrase of n + 16

209. ## math

Mr. Simmons patio has an area of 90 sqare feet and a perimeter of 38 what are the dimensions of his patio?

210. ## chemistry

How many moles of are needed to react with 0.460 ?

211. ## physics

a race car accelerates from rest at +7.2 m/s^2 for 4.5 s. How fast will it be going at the of that time ??

212. ## english

he writers transformation of questioning of whether or not there truly is a God to the personal conclusion made through surrounding wondrous works that there is indeed a God. The purpose for writing this piece is to express and entertain. This can be first

213. ## math

If there are 8 boys and 9 girls in a classroom , what is the ratio of boys to girls ?

214. ## math

If y varies diretly with x, write an equation for the direct variation. then find each value. Find y when x = 10 if y = 8 when x = 20 If think I can find the value by y/10 = 8/20 with the answer for the value is 4. My problem is how to find the equation.

215. ## math

rule= input3 output 2 input 6 output3 input 9 output4 input 12 output 5

216. ## vocabulary

A sentence with offhand oversight prior proclaim

217. ## ap chemistry

A 2.5 g of sample megnesium carbide is added to 8.8 ml of water inside calorimeter of 700 ml of water how do we find limiting reactant

218. ## Trigonometry

Alrighty I have to find two real world sinusoidal functions. I found: 1. A piston in an engine moves up and down in a cylinder. The height, h centimeters, of the piston a t seconds is given by the function: h= 120 sin(πt) + 200. 2. You can find the

219. ## Science

A 52kg tricyle left a child's yard at 3m/52. What is its force ?

220. ## Algebra/Biology

y=2.12x + 0.004 and Protein A treated w/Bradford Reagent and has an A595 of 0.53. Can you please explain how to calculate this problem so I know in the future? Thanks for your help.

221. ## comparing different types of currency.

if you could buy 10 apples for 1 american dollar how many apples could you buy with 6.25 chinese yuan.

222. ## maths

let G be a group with operation . and let p,q be two elements of G. simplify p.q.q.q^-1.p^-1.q^-1 as much as possible.does answer change if G is ABELIAN?

223. ## biology

What is the different between tissue-specific knockout mouse and an inducible knockout mouse

224. ## Math

For a certain set of five numbers, the mean of all but the largest is 80, and the mean of all but the smallest number is 90. What is the range of the set of five numbers?

225. ## Math Statistics

Kesha's mean grade for the first two terms was 74. What grade must she get in the third term to get an exact passing average of 75?

226. ## algebra

3 over a+2 over 3a =11 over 15

227. ## algebra

I have to simplify this please help how to solve the problem involving rational algebraic expressions 3 over a+2a over 3a=11 over 15

228. ## physics

An engine does 17700 J of work and rejects 6320 J of heat into a cold resevoir whose temperature is 283 K. What would be the smallest possible temperature of the hot resevoir?

229. ## history

how are longhouses and present day homes alike '

230. ## language

why is there a conflict between zeus and human beings

231. ## Social studies

Compare and contrast how that location of Mesopotamia affected trade and culture.

232. ## Chemistry

y=2.12x + 0.004 and Protein A treated w/Bradford Reagent and has an A595 of 0.53. Can you please explain how to calculate this problem so I know in the future? Thanks for your help.

What are the foreign language requirements and how to get credit for them before attending for The Ohio State University?

234. ## TRIG

Given that tanx = 1/sqr(15) and secx -4/sqr(15) find the value of sinx

235. ## math

draw an array for 7 times 3

236. ## Trigonometry

How do u find the angles of a triangle whose sides are in the ratio 2:4:5?

237. ## algebra 2

Previos: D(t)=1550+42t-15t=1550=27t (t represtentnig time) Based on the function for D, what would be the total amount of non functional components in 2014? Let 1993 be represented by 0.

238. ## biology

Assume that a mature female vegetarian consumed 2 pounds of food daily for one year. At the end of this one year, she weighed ½ pound more than she weighed at the beginning of that year. a. What was the percentage of biomass conversion at this trophic

239. ## Math

Find the exact value of sin75degrees using sum identity of sine

240. ## math

Solve the following and express the answer in scientific notation: (5.4 × 10^4) × ( 4.5 × 10^8)

241. ## Science- chemistry

After extraction with bicarbonate in which layer is the benzoic acid?

242. ## Trigonometric

Given that sinx = 7 /25 pi/2

243. ## Math

91mm= 9.1cm? .012 L=12ml? 2.5g=2500mg? 21 L=2100ml? 0.821 L=821ml?

244. ## Math Algr.2

Convert to standard form (AX+BY=C) 1.y=3/2x+6 2. 2/3y=2x-5 3.7y-21=1/2x 4.-2/3x+3/4y=1 Convert to Slope/intercept form (y=mx+b) 1.3x-27=14 2.-9y-6x-18=0 3.8-2x+4y=0 12x=4y-8 I need help going through this because I am not sure if I am doing everything

245. ## math

If sandy and Betty have 192 toys in all and Sandygive Betty 50 toys so know sandy has three times as much as betty

246. ## Math

How many dollars are in 18 five-dollars bills?

247. ## math

help me! 2 3/5 + 1 4/5=

4 3/4 +3 1/2

249. ## math

3 1/2 + 2 5/8 -4 1/4=

250. ## Math

Stephanie got a travel pack of 4 aspirin, each 500 milligrams. How many total grams are in the pack 2 grams?

251. ## Chemistry: Need Help

Suppose there is a simulation of 25 helium molecules and 25 nitrogen molecules on the right side of a box before the rate of effusion. Suppose you carry out this simulation and it does not give a precise quantitative reflection of Graham's Law. -->What

252. ## art

How to make a concept about abstract painting

253. ## chemical reaction engineering

Propane steam reforming over an alumina supported Ni metal catalyst: C3H8 (g) + H2O (g) → CO2 (g) + H2 (g) is proposed to follow these mechanisms: C3H8 + 2S1 ↔ C2H5-S1 + CH3-S1 (M1) H2O + 2S2 ↔ OH-S2 + H-S2 (M2) CH3-S1 + OH-S2 → CH3O-S1 + H-S2 (M3)

256. ## TRIG

show that cos(pi x) = pi cosx is not an identity by finding a single value of x for which it fails to hold.

258. ## Science

The "resistant" threshold for gemifloxacin is >1 mg/L while the "resistant" threshold for sulfamethoxazole is >512 mg/L. Explain why there might be this great disparity of values in resistance thresholds (512-fold) for each antibiotic pharmacologically

259. ## algebra 2

factor the expression 2x^2+5x+3 I just don't understand and my teacher is not a good one

260. ## help one question

5. Scientists used _______ data to generate a model of the moon’s interior. (1 point)crater moonquakes phase eclipse

261. ## arithmetic

Amanda is making xookies for a charity event. She expects 10 people to come. She wants to have 3 cookies for each person. How can Amanda use a patter to find the product for 6 x 10?

262. ## Music

List of choral groups