# Questions Asked onOctober 11, 2010

1. ## chemistry

Enter the net ionic equation for the reaction of aqueous sodium chloride with aqueous silver nitrate

2. ## Physics

On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 2.02 m/s2. (a) What is the net force exerted by the car on the trailer? (b) What force does the trailer exert on the car? (c) What is the net force acting

3. ## Physics #2

A car can decelerate at -3.40 m/s2 without skidding when coming to rest on a level road. What would be the magnitude of its deceleration if the road were inclined at 14° uphill? Assume the same static friction coefficient.

4. ## Finance Question

Nathans Hot Dog Corp has projected the following sales for the coming year: Q1 Q2 Q3 Q4 Sales $700$ 850 $950$ 1,050 Sales in the year following this one are projected to be 17 percent greater in each quarter. Calculate payments to suppliers assuming

5. ## chemistry prt 2

What is the net ionic equation of the reaction of MgCl2 with NaOH

6. ## chemistry

DNA is approximately 2.5 nm in length. If an average man is 6 feet tall, how many DNA molecules could be stacked end to end in an average man?

7. ## Chemistry

Consider the following reaction: CH4 +2O2 -> CO2 + 2H2O. Delta H = -891 kJ Calculate the enthalpy change for each of the following cases: a. 1.00 g methane is burned in excess oxygen b. 1.00 x 10^3 L methane gas at 740. torr and 25 *C is burned in excess

8. ## English 2

12. All of the following words describe Sir Lancelot Du Lake except a. loyal b. indirect c. strong d. clever B? 13. What is the most likely reason that Sir Lancelot doesn't initially fight the three Round Table knights at the end of the story? a. Sir

9. ## Physics

Michael Jordan, formerly of the Chicago Bulls basketball team, has some fanatic fans. They claim that he is able to jump and remain in the air for two full seconds from launch to landing. Evaluate this claim by calculating the maximum height that such a

10. ## Chemistry

Washing soda is a hydrate of sodium carbonate. Its formula is Na2CO3 X xH20. A 2.714 g sample of washing soda is heated until a constant mass of 1.006 of Na2CO3 is reached. What is x? What is the experimental mass percent of water in the hydrate?

11. ## Chemistry

What mass of MgSO4 · 7H2O is required to prepare 800 mL of a 0.442MMgSO4 solution? Answer in units of g. Would you use the formula M1V1=M2V2?

13. ## physics

as a hiker descends a hill, the work done by gravity on the hiker is a.) positive and depends on the path taken b.) negative and depends on the path taken c) positive and indepedent of the path taken d.)negative and independent of the path taken

14. ## chemistry

if 30ml of .150 M CaCl2 is added to 22.5ml of .1 M AgNO3, what is the mass of the AgCl precipitate?

15. ## Math

There are 2 hats, 3 scarves, and 3 pairs of mittens How many different combinations of 1 hat, 1 scarf, and 1 pair of mittens? How would I solve this, other than writing out each combination? Could someone please explain how?

16. ## english

it's discrimination to mandate that police officers must conform to a certain height and weight. which fallacies is this?

17. ## Chemistry (General)

When 280. mL of 1.50 x 10-4 M hydrochloric acid is added to 135 mL of 1.75 x 10-4 M Mg(OH)2, the resulting solution will be: acidic. basic neutral. It is impossible to tell from the information given.

18. ## intro to chemistry

A sample of nitrogen has a volume of 50.0L at a pressure of 760mmHg. What is the volume of the gas at each of the following pressures if there is no change in temperature? A. 1500mmHg B. 2.0atm C. 0.500atm

19. ## organic chemistry

a 50% aqueous solution of ethanol (50mL total) is distilled and collected in 10-mL fractions. Predict the boiling range of each fraction

20. ## Chemistry

What mass of MgSO4 · 7H2O is required to prepare 800 mL of a 0.442MMgSO4 solution? Answer in units of g.

21. ## physics

A sports car of mass 950 kg (including the driver) crosses the rounded top of a hill (r = 88 m) at 27 m/s. Determine the normal force exerted by the road on the car. Determine the normal force exerted by the car on the 72-kg driver. Express your answer

22. ## calculus

Suppose that the radius r of a right circular cone of fixed height h = 20 cm is increasing at a rate 4 cm/s. How fast is the volume increasing when r = 10? Give your answer correct to two decimal places.

23. ## science

What physical property could you use to separate sand and sugar? How would you do it?

24. ## calculus

Find dy/dx 4x^2+y^2-8x+4y+4=0, find points on graph of the equation where there is a vertical or horizontal tangent line

25. ## Analytical Chemistry

I am trying to find moles of IO3 from Cu(IO3)2 10 ml and standardized sodium thiosulfate (Na2S2O3.5H20) .28 M. My calc is: 0.28 Moles Na2S2O3.5H20 * (2 moles of S2O3/1 mole Na2S2O3.5H20)* (2 moles of (IO3)/1 mole Cu(IO3)2= (1.12/.01 L) but that is why to

When the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 5.3 m/s2 as it slows from 9.5 m/s to 0 m/s. Find the time interval of acceleration for the bus. Answer in units of s

27. ## physics

If a loaded truck that can accelerate at 1 m/s2 loses its load and has four-fifths of its original mass, what acceleration can it attain if the same driving force acts on it?

France is an independent nation in Western Europe and the center of a large overseas administration. It is the third-largest European nation (after Russia and Ukraine). In ancient times France was part of the Celtic territory known as Gaul or Gallia. Its

29. ## chemistry

If a reaction mixture contains 28 of , 150 of , and 36 of , what is the limiting reactant?

30. ## physics

A hypothetical planet has a radius 1.1 times that of Earth, but has the same mass. What is the acceleration due to gravity near its surface? Express your answer using two significant figures.

31. ## Physics

What average force is required to stop an 1600 -kg car in 8.0 s if the car is traveling at 80 km/h?

32. ## ap chem

Hydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen and methane: 2NH3(g) + 3O2(g) + 2CH4 -->2HCN + 6H2O(g) a)If 5.00 x 10^3 kg each of NH3 , O2, and CH4 are reacted what mass of HCN will be produced, assuming 100% yield?

33. ## chemistry

what is the atomic number of an atom X which has 14 protons 14 electrons and 12 neutrons? 2 14 12 26

34. ## Math

A baker used 16 pounds of flour and 12 cups of sugar to make several batches of cookies. the baker used the same amount of flour and sugar in each batch of cookie. what is the number of batches the baker could have made with his flour and sugar

35. ## Chemistry

Name four factors that can affect the rate of a chemical reaction. How does the rate of a chemical reaction change in response to a change in each factor? My answer: Four factors that can affect the rate of a chemical reaction are concentration, surface

36. ## Chemistry

Consider the combustion of propane: C3H8 + 5CO2 -> 3CO2 + 2H20. Delta H = -2221 kJ. What mass of propane must be burned to furnish this amount of energy assuming the heat transfer process is 60.% efficient?

37. ## intro to chemistry

The air in a 5.00L tank has a pressure of 1.20atm. What is the new pressure of the air when the air is placed in tanks that have the following volumes, if there is no change in temperature? A. 1.00L B. 2500ml C. 750ml

38. ## spanish

what form do u use in vivir ex. mi familia (vivir) cerca del parque

40. ## spanish

cuando (regresar) a mi casa mi familia y yo (desayunar). luego voy a la escuela what it be translated in to the form by the subjects

When 0.042 moles of aluminum sulfate are dissolved in enough water to make 763 milliliters of solution, what is the molarity of sulfate ions? Answer in units of M.

42. ## organic chem

7. An unknown compound, C8H14, is optically active. Hydrogenation of the unknown yields 4-methylheptane. Ozonolysis of the unknown yields ethanol and 2- methylpropandial. Suggest a structure for the unknown consistent with the above date. please help

43. ## English 2

Which hero's story, King Arthur's or Sundiata's, has the more relevant message for young people today? Compose an essay that answers this question, giving at least two examples from the selections and applying them to issues young people face today. Need

44. ## chemistry help

enzymes and substrates overall reaction: S -> P step 1: E + S -> ES fast step 2: ES -> E + S fast step 3: ES -> E + P slow what is the order of the reaction in E and what is the order of reaction in S?

45. ## statistics

the following data lists the average monthly snowfall for jan 15 cities around us: 34 9 28 24 0 46 34 20 1 38 5 16 32 26 25 find the mean, variance, and standard deviation

46. ## science

an airplane normally flies at 200 km/h, what is the resultant velocity of the plane if it experiences a 50 km/h tail wind, and a 50km/h head wind

47. ## Systems Operations

Your boss has asked you to help new employees understand uses of data in systems-operation management and the various statistical process controls they will experience on a daily basis. Create a 6 – 8 slide PowerPoint® presentation in which you describe

48. ## math

IAm greater then 4tens and less than tens i have 9 ones what number am i?

49. ## math help

find an equation of the line passing through the given points. Write the equation in function notation (4,5) and (2,9) f(x)=

50. ## spanish

what does detras mean in spanish?

51. ## statistics

rank the following in increasing order and find the position and value of the 91st percentile show all work. 4,,5,4,9,9,1,0,7,4,8,0,9

52. ## college, statistics

a math test has a mean of 43 and a standard deviation 0f 17.0. find the corresponding z scores for. show all work. I. a test score of 13 II. a test score of 59

53. ## Chemistry

A sample of 9.4 grams of NaOH is dissolved into 693 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.37 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the

54. ## Physics

The battery in the circuit diagram has an EMF of 12V and an unknown internal resistance r. Voltmeter V1 is connected across the battery and voltmeter V2 is connected across the switch S. The resistance of the connecting wires and the ammeter is negligible.

55. ## algebra I

What is 3/4x-7=8+-6x

56. ## physics

A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 23 m/s at an angle of 69° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its

57. ## chemistry

How do you calculate Ke for 2 SO2 (g) + O2 (g) ↔ 2 SO3 (g) + heat [0.0500] [0.0500] [0.103]

58. ## INTRO TO ECO

Opportunity-cost theory suggests that the cost to an airline of letting its employees fly at no charge... A.is greater around the Christmas holidays B.will depend upon the value employees place upon travel C.zero D.depends upon alternatives avaliable to

59. ## chemistry

carbon -12 and carbon -14 are the exact same atom isotopes of the same atom completely different atoms the same except that carbon -14 has 2 extra electrons

60. ## chemistry

how many proton and electrons does Fe+2 have? 26 protons 26 electrons 26 protons 28 electrons 26 protons 24 electrons 24 protons 26 electrons

61. ## chemistry

The boiling point of water at 735mmHg is 99.073C. What mass of NaCl should be added to 3.11kg water to increase the boiling point to 100.000C. Kb for water = 0.510K kg mol-1.

62. ## algebra 1

what is means?

63. ## Intro to ECONOMICS

the basic reason suburban stores are more likely than downtown stores to provide free parking for their customers is that.. the cost of using land is higher in the downtown area?

64. ## statistics

a math test has a mean of 43 and a standard deviation of 17.0. find the corrresponding z scores for a test score of 13 and a test score of 59. show work

65. ## composition and communication 1

i need to know how to write five sentences in which you address how your writing has changed in the first four weeks of class. the classis composition and communication 1

66. ## chemistry

Use bond energies to predict the molar enthalpy of combustion of acetylene gas. 2C2H2 + 5O2--> 4CO2 + 2H2O I am confused as to how to do the 2C2H2 in relation to the bonds? how many c-c bonds would there be, or would they be triple bonds?

67. ## statistics

a math test has a mean of 43 and a standard deviation of 17.0. find the corresponding z scores for a test score of 13 and a test score of 59. show all work.

68. ## physics

The space shuttle releases a satellite into a circular orbit 700 km above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs?

69. ## Math

Step 1 = 3 boxes Step 2 = 6 boxes Step 3 = 11 boxes Step 4 = 18 boxes How many boxes at step 50? Which one? 100, 102, 2500, 2502 How would I solve this?

70. ## Chemistry

In a car engine, gasoline (represented by C8H18) does not burn completely, and some CO forms along with CO2 and H2O. If 5 percent of the gasoline forms CO, A)What is the ratio of CO2 to CO molecules in the exhaust? B)What is the mass ratio of CO2 to CO?

71. ## Science

The state of cellular equilibrium is best described as a dynamic condition, not static. What does this mean?

72. ## chemistry

URGENT!! You wish to prepare 1 L of a 0.02 M potassium iodate solution. You require that the final concentration be within 1% of 0.02 M and that the concentration must be known accurately to the fourth decimal place. How would you prepare this solution?

73. ## Physics

A bullet with a mass of 0.01kg is fired horizontally into a block of wood hanging on a string. The bullet sticks in the wood and causes it to swing upward to a height of 0.1m If the mass of the wood block is 2kg, what is the initial speed of the bullet?

74. ## physics

A high-voltage power line carries a current of 120 A at a location where the Earth's magnetic field has a magnitude of 0.577 G and points to the north, 70.8° below the horizontal. Calculate the magnitude of the magnetic force exerted on a 258 m length of

75. ## chemistry prt 3

What is the net ionic equation of the reaction of MgSO4 with NaOH

76. ## Physics Help!!

Three identical masses of 500 kg each are placed on the x axis. One mass is at x_1 = -11.0 cm, one is at the origin, and one is at x_2 = 37.0 cm. What is the magnitude of the net gravitational force F_grav on the mass at the origin due to the other two

77. ## English

1. What did Bora want to do? - She wanted to do volunteer work. 2. Where do her friends usually volunteer? - They usually volunteer at libraries or town halls. 3. Did Bora want to volunteer at a library or a town hall? - No, she didn't. 4. Who told Bora

78. ## Physics

Two crates, of mass m1 = 60 kg and m2 = 130 kg, are in contact and at rest on a horizontal surface (Fig. 4-54). A 620 N force is exerted on the 60 kg crate. The coefficient of kinetic friction is 0.15 a)Calculate the acceleration of the system. b)

79. ## math anaylsis

what is x^2+54+800 in vertex form?

80. ## GEOMETRY

Alicia is 5ft tall. she casts a shadow that measures 6 1/2 feet long at the same time that a sculpture in the park casts a shadow 12 ft long. which of the following is the approximate height of the sculpture? a) 2.0 miles b) 6.6 miles c) 12 miles d) 15.6

81. ## Calculus

f(x) = 6(cos(x))^2 - 12sin(x) 0 ¡Ü x ¡Ü 2(PI) I have to find where the interval is increasing, decreasing, local mins and maxs, inflection points, and concave up and down. I understand how to do these type of problems. I am just getting messed up with

82. ## Math

A sequence of numbers is defined by the expression a(subscript n) = 3n + n^2 Which sequence corresponds to this expression? A)4, 9, 12, 20 B)4, 10, 18, 28 C)4, 10, 15, 20 D)5, 10 ,15 20 Question: What am I supposed to do here? How would I solve this?

83. ## Com/155

This week, you were asked to review the Topic Sentence section in the Center for Writing Excellence. Using the topic of home ownership versus leasing, identify a topic and provide a topic sentence you would use in a paragraph about the topic.

84. ## Chemistry

How can i explain the key features of the periodic table relate to the conclusions after a titration experiment

Research the Goldman Sachs website. Using your research findings from the Library and the Internet, develop both an EFAS (External Factors Analysis Summary) table and an IFAS (Internal Factors Analysis Summary) table. The tables are to be submitted in one

86. ## math

b-9b??? how are you supposed to simplify if there isnt a nmber before the b????

87. ## Algebra

x^2+6x-44/x+9 X squared plus six X minus 44 divided by X+9. Having a hard time with this problem. I need someone to help me step by step or give me some pointers please? Thank you.

88. ## math

when a marble hits a wall at a 22 degree angle, what is the measure of the angle between the two paths of the marble?

89. ## algebra

187=-17R How exactly would I solve this? Would you divide the 187 by the -17?

90. ## Physics

To store the energy produced in 1.5 hour by a 160 MW (160 10^6 W) electric-power plant, how many cubic meters of water will have to be pumped from the lower to the upper reservoir? Assume the upper reservoir is 500 m above the lower and we can neglect the

91. ## Chem

I have no idea What to do. What does it mean by 'draw what you think the visible range spectrum of this dye would look like.' To get the A, I used Beer's law. So I got 9.265nm for Absorbance. What should I do for the next? The question is ----Next Simon

92. ## math

marcias house is approx. 10 miles east of the airport. a jet is flying directly over her house after taking off from the airport and flying approx. 12 miles. approx how many miles high is the jet when it flys over marcias house?

93. ## chemistry

what is the mass in kilograms of 750 mL of a substance that has a density of 0.930 g/mL?

94. ## Math

x = 2 , 4 , 6 , 8 y = 18, 34, 50, 66 This is supposed to be a table where the x lines up with the y in order How would I find the equation to solve this when x = 20? x goes up by +2 y goes up by +16 but starts with 18 I already posted this and got the

95. ## Math

There is a three diget number round to the nearest hundred to 200. Round to the nearst 10 this number round to the sum of digits of the number is sum is 19. What is this number?

96. ## ECONOMICS HELP

a draft system, whether professional sports or the military, enable those who are hiring to A.avoid paying a living wage B.produce what they produce at a lower cost C.educe the cost of labor D.transfer part of the cost of labor to someone other than

97. ## geometry

A manufacturer wants to make a rectangular storage box with volume 0.75 cubic meters, length 1.5 meters and width 0.4 meters. What is the height of the box?

98. ## edu310

what role do colleges and universities play in preparing future educators to be successful in the classroom

why are neuclar waste products a problem?

Please help How do you graph the radical that is below negative of the sqrt(x+1) my teacher said we should set up x and y according to parent function. The endpoint of this would be (-1,0) How do I find the other points-I'm really stuck

101. ## Math

If I had to find the area of a circle (3.14)r^(2) - and it states that it is 5 meters in diameter would I divide 5 by 2 = 2.5 and then multiply 2.5 by 2.5 to get 6.25?

102. ## algebra 2

find the gcf and lcm of 315 and 882.

103. ## Chemistry

Imagine that you have a 5.50 L gas tank and a 3.50 L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 155 atm, to what

104. ## physics

A spacecraft is traveling with a velocity of v0x = 6370 m/s along the +x direction. Two engines are turned on for a time of 843 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.20 m/s2, while the other gives it an

105. ## math

what are all the fact families of 3, 4, 7, 10, 11. i'm not to sure how to answer this question. can anyone help please

106. ## chemistry

A solution contains an unknown amount of dissolved magnesium (Mg 2+). Addition of 5.50×10^−2 mol of Na2CO3 causes complete precipitation of all of the magnesium. what mass of the magnesium was dissolved in the solution? answer in unit g.

107. ## spanish 1

durante el dia (pasar) tiempo con mis amigos, what would be the form for the subject

108. ## algebra 2

find the gcf and lcm of 315 and 882.

109. ## chem

Which has highest boiling point? H20, H2S, H2Se, H2Te i know its H20, but why? is it because its dipole dipole? does it have to do with electronegative, or polarity?

110. ## math

Erica took 2 days to drive 1,020 miles. On the first day she drove 10 hours at an average spped of 62 mile per hour. on the second day, her average spped was 57 miles per hour. approx. how long did she drive on the 2nd day?

111. ## Where is DrBob222?

Hey does anyone know when DrBob222 comes on here, cause I have a lot of chemistry questions which I need him to check. Thanks.

112. ## Chem

Calculate the work done when 40.0 g of tin dissolves in excess acid at 1.00 atm and 29°C. Assume ideal gas behavior. Sn(s) + 2 H+(aq) → Sn2+(aq) + H2(g)

113. ## Music

Jody says that atonal harmony establishes a harmonic center of gravity. Sean says that atonal harmony doesn't have a harmonic center of gravity. Who is correct? A. Only Jody is correct B. Only Sean is correct C. Both Jody and Sean are correct D. Neither

114. ## English

What are some frequently misused adjectives?

115. ## physics

A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the

116. ## science

how do I make a simple model cell?

117. ## differentiation

Find y''(x) if y=(x)^1/2 tan (x)^1/2

118. ## chemistry

theoretical percent sulfate in AlK(SO4)2*H2O

119. ## Math

-4=x/7+3 i need to find the answer for "x"

120. ## math

how do yu find the implicit differentiation for this porblem 4cosx*siny=1

121. ## math

derek planted a garden in the shape of a square 32 feet on each side. The garden has a stream on one side, but he plans so build a fence on the other three sides. If he puts a post every 8 feet, how many posts will he need?

122. ## English

Can you please check if everything is correct? 1) The last decades of the 18th century were characterized by enormous changes, (witnessed enormous changes?) which turned Britain from a mainly farming country toan industrial one. 2)In particular, there was

Add one set of parentheses to the expression - 7 * x + 3 + 8 * x + 3 * x + 8 - 9 so that it is equivalent to 2(9x + 10)

124. ## Intro to Eco Help

supply curves slop upward to the right because.. higher prices attract resources from other uses?

126. ## physics

A 0.80-kg ball, attached to the end of a horizontal cord, is rotated in a circle of radius 1.7 m on a frictionless horizontal surface.If the cord will break when the tension in it exceeds 90 N, what is the maximum speed the ball can have? Express your

127. ## Pre Calc

How to solve the equation: 36x-15y+50z=-10 2x+25y=40 54x-5y+30z=-160

128. ## Ecology

I have to determine what color topsoil is most fertile. I'm not sure if it would be dark brown (because it reflects a lot of broken down organic material) or red (because it's clay, and clay is good for agriculture). What do you think?

129. ## statistics

I.use the chebyshev's theorem to find out what percentage of the values will fall between 201 and 257 for a data set with a mean of 229 and standard deviation of 14. II. use the emperical rule to find out two values 68% of the data will fall between for a

130. ## Math

What are the vertical and horizontal stretch/compressions for the functions h(x)=1/(5x) and k(x)=|0.4x| ?

131. ## math

a group of 25 students, 17 have socks on their feet, 12 have shoes on their feet, and 9 have both socks and shoes on their feet. how many students are barefoot

132. ## physics

a 60kg man is on a steadily rotating Ferris wheel. the man is standing on a bathroom scale and the scale reads 45kg at the top of the wheel. take g=10m/s^2 (a) what does the scale read when the man is at the bottom of the wheel? (b)what does the scale read

133. ## statistics

rank the following data in increasing order and find the position and value of the 94,51st percentile. show all work. 4,5,4,9,9,1,0,7,4,8,0,9

134. ## English

I needed to create sentence containing the phrase "green with envy". I have got two sentences here, but I need help picking out the one that makes more sense. Emily’s new look made her friends green with envy. Emily’s friends became green with envy

135. ## chemistry

If a hydrated salt is overheated and the anhydrous salt thermally decomposes, one product being a gas, how will it affect the percent of water in the hydrated salt? explain.

136. ## spanish1

por la noche yo (escuchar) musica o (bailar) en mi cuarto. Mis padres (leer) revistas o (ver) la tele, y mi hermano (montar) en monopatin con sus amigos

137. ## spanish1

por la noche yo (escuchar) musica o (bailar) en mi cuarto. Mis padres (leer) revistas o (ver) la tele, y mi hermano (montar) en monopatin con sus amigos pls help the right form for the subject

138. ## Calculus

Consider the region bounded by the curves y=e^x, y=-e^x, and x=1. Use the method of cylindrical shells to find the volume of the solid obtained by rotating this region about the y-axis.

139. ## algebra

7=T/-7 How on earth would I solve this?

140. ## statistics

starting with the values 70 and 100, add 3 data values to the sample so that the mean is 76. the median is 82 and the mode is 82. show work

141. ## Chemistry

How many grams of sucrose (C12H22O11) must be dissolved in 200 g water to make a solution in which the mole fraction of sucrose is 0.2? Answer in units of g.

142. ## science

what is the power of a machine that does 1800 N-m of work per minute?

143. ## Chemistry

Calculate the molality of CsCl in a 18% by mass aqueous solution. Answer in units of m.

144. ## ap chemistry

A titration. 12.46 mL of KMnO4 are titrated with 25 mL of H2C2O4. The half reaction is 2H2O+H2C2O4 ARROW 2H2CO3+2H+2e-. How do I get the molarity of H2C2O4? PLEASE HELP

145. ## Chemistry

When 0.016 moles of lead(II) nitrate are dissolved in enough water to make 748 mililiters of solution, what is the molar concentration of nitrate ions? Answer in units of M.

146. ## English

What would be good sentence for emerald?

198. ## Math/English?

Hey! How's it going? Can anyone help me out here? My teacher asked us students to come up with a mnemonic device for PEMDAS (you know, the order of Operations), other than Please Exuse My Dear Aunt Sally. I came up with great ideas, but she changed her

199. ## Economics

who knows how to measure the true cost of a pint of B-Positive blood? A.None of these B.Any competent medical authority C.Only the Surgeon General of the United States D.An economist E.A clerk at the blood bank

200. ## Statistics

Hi, My professor gave us the formulas for sample variance and population variance, as well as the shortcut formulas for each. However, he said that on some of the problems, we will HAVE to use the long formula, which for population variance would be:

201. ## Physics

Suppose that you are standing on a train accelerating at 0.33g. What minimum coefficient of static friction must exist between your feet and the floor if you are not to slide?

202. ## physics

A golfer imparts a speed of 32.1 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. (a) How much time does the ball spend in the air? (b) What is the longest "hole in

203. ## Chemistry

A gas mixture contains 1.16 g N2 and 0.89 g O2 in a 1.49 L container at 16 degrees C. What is partial pressure of N2 & O2? *I already know the mole fraction for N2 is 0.60, and 0.40 for O2. I just don't know where to go from here.

204. ## calculus 1

Find d/dx for (sin πx + cos πy)4 = 65

205. ## Health Information

Dr. Bob's computerized records are damaged by a power surge. Which of the following is most true? A. Dr bob isn't at fault. B. Dr Bob is at fault. C. The records custodian, but not Dr bob will be liable. D. Dr Bob is at fault unless he had proper surge

206. ## Chmistry

A sample of copper with a mass of 63.5g contains 6.02x10^23atoms.Calculate the mass of a single copper atom.

207. ## Math

Write a two column proof. -If XZ=ZY,XZ=4x+1,and ZY=6x-13, then x=7. Statements: Reason: 1.XZ=ZY,XZ=4x+1 and ZY=6x-13 1.Given That as far as I got to ^. Thanks

208. ## biology

Hello, I was just wondering what the difference between anatomical and physiological. I'm reading a reserach paper that talks about how light levels 'involve both physiological and anatomical changes to the leaves.' I don't know what the difference between

209. ## Limits

F(x)= 11 if x > 10 4 if x = 10 -x+11 if 0 < equal x < 10 11 if x 10 from the left 2. lim x-> 10 from the right 3.lim x-> 0 from the left 4. lim x-> 0 from the right 5. lim x-> 0

210. ## algebra

25 miles / hour = x meters / minute

211. ## MATH

Post your 50 or more word response to the following in the assignment link: How can you determine if two lines are perpendicular? Your response should include the following: · How the slopes of two perpendicular lines relate; · How you recognize if two

212. ## Physical science

The photo-electric effect has many practical applications.A photocell, used in burglar system such application.The work function of the metal used as a cathode in the photocell is 8,7 times 10^-19J. Calculate the velocity at which the electrons are

213. ## physics

What force is needed to accelerate a child on a sled (total mass = 65.0 kg) at 1.75 m/s^2

214. ## English

Need help with my story. Please check if my Anecdote is story or merely a report,second paragraph anazlyze the anecdote, explaining how illustrates the thesis. How can I make my essay 1000 words long? Thank you. sorry its kind a long questions. My quote is

216. ## social studies

how would you describe the 1901-2000

217. ## Physics

A mine shaft is known to be 57.8 m deep. If you would drop a rock down the shaft, how long would it take for you to hear the sound of the rock hitting the bottom of the shaft knowing that sound travels at a constant velocity of 345 m/s? The answer is

218. ## Chemistry

20.5 mL of oxalic acid,H2C2O4 were titrated with 0.800 M solution of lithium hydroxide. It took 40.0 mL of the base to reach the equivalence point. What is the molarity of the oxalic acid?

219. ## physics

There is a heat flow through a block of cross sectional area 21.5 cm2 and length 39 cm when the temperature difference of 18 degree Celsius is established across the block. Find the rate of heat flow through the block, assuming it is made of aluminium with

220. ## us history

Distinguish between "older culture" and "new culture" present in 18th century colonial America, and discuss the value conflict that emerged between the two.

221. ## Algebra

A dehydrated patient needs a 3.82% saline IV. Unfortunately, the hospital only has bags of 4% and 3% saline solutions. How many liters of each of these solutions should be mixed together to yield 5 liters of the desired concentration? So far I've come up

222. ## Chemistry

Balance? Cr2O7^2- + C2H4O yields C2H4O2 + Cr^3+ (When I say ^ a number followed by a plus or minus that's the charge) Half-reaction method needed.

223. ## Intro to Economics

Past expenses are irrelevant to decisions to supply now, because A.people forget the past quickly B.it is esssential to avoid bankruptcy C.supply decisions depend on opportunities thst will have to be forgone, not opportunities already forgone D.expenses

224. ## Physics

What average force is needed to accelerate a 8.00-gram pellet from rest to 135 m/s over a distance of 0.800 m along the barrel of a rifle?

225. ## PHYSICS ---HELP!

The space shuttle releases a satellite into a circular orbit 700 km above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs?

226. ## math

if a child and adult paid $23 for 2 tickets and an adult ticket is$6.50 more than the childs ticket, how do i get the answer?

227. ## chemistry

The weight of an atom is made up of what? protons and electrons neutrons protons electrons neutrons protons electrons and neutrons

228. ## mgt 307

Members of __________ must have good long-term working relationships with one another, solid operating systems, and the external support needed to achieve effectiveness over a sustained period of time.

229. ## engish (beowulf)

how does the battle between Beowulf and the dragon show the inequalities of the Anglo saxon class system?

230. ## Chemistry

Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.065 moles of sulfuric acid is mixed with water to make 456 mililiter of solution, what is the molarity of H+? Answer in units of M.

231. ## physics

Tarzan, who weighs 780 N, swings from a cliff at the end of a 12.0 m vine that hangs from a high tree limb and initially makes an angle of 49.0° with the vertical. Assume that an x axis extends horizontally away from the cliff edge and a y axis extends

232. ## Chemistry

Assignment  Calculate the pH, pOH, [H+], and [OH] for each of the following solutions. Show all work. (10 Points) Solution Composition of Starting Materials 1 0.10 M acetic acid 2. 5 mL 0.10 M acetic acid + 5 mL wa 3 1 mL 0.10 M acetic acid + 99 mL

233. ## Intermediate Algebra (Math)

HELP PLEASE, Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -2x Ð 8y = 22 -6x Ð y = 20 At first I tried to multiply by 8 but that did not work.

234. ## Chemistry

How many grams of sucrose (C12H22O11) must be dissolved in 200 g water to make a solution in which the mole fraction of sucrose is 0.2? Answer in units of g.

235. ## Intermediate Algebra

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -7x Ð 5y = 1.5 -5x Ð 4y = 4.5

236. ## chemistry

Calculate the molarity for 25mL of H2C2O4 in a titration with 12.46mL of KMnO4

237. ## Physics

A diagram represents a simplified sketch of an electric DC motor.which contains a magnet, commutator, carbon brushes, coil and a pivot. when the electric motor is connected to a 12V DC supply, it draws a current of 1,2A. The motor is now used to lift an

238. ## physics

A spring is launched at and angle of 30 degrees and pulled 30 cm back.The distance from the floor to the top of the launcher is 35 cm. At what distance will the spring lan in the bucket?

239. ## Algebra (Intermediate)

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 9x + 6y = 60 -27x Ð 18y = -180

240. ## Chemistry

Calculate the work done when 40.0 g of tin dissolves in excess acid at 1.00 atm and 29°C. Assume ideal gas behavior. Sn(s) + 2 H+(aq) → Sn2+(aq) + H2(g)

241. ## physics

An electron with a speed of 1.1 × 107 m/s moves horizontally into a region where a constant vertical force of 3.6 × 10-16 N acts on it. The mass of the electron is 9.11 × 10-31 kg. Determine the vertical distance the electron is deflected during the

242. ## Intermediate Algebra

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x + y = 4 x + 3y = 22 Here's what I came up with (where did I go wrong) -3x + y = 4 y = 4 - 3x -3x + (4-3x) = 4 -3x + 1x =

282. ## Chemistry

The electrolysis (decomposition) of water produces hydrogen gas at the rate of 30.0 mL/min. A) Write a balanced chemical equation for this reaction and include phase designations. 2H2O(aq)---> 4H2(g)O2(g) Is whatever I've done above correct? B) What volume

283. ## physics

Three identical masses of 500 kg each are placed on the x axis. One mass is at x_1 = -11.0 cm, one is at the origin, and one is at x_2 = 37.0 cm. What is the magnitude of the net gravitational force F_grav on the mass at the origin due to the other two

284. ## science

A steel wire is tied to two chairs and kept taut. 2 students sit one on each chair. A weight is attached to the long wire with help of a string and a pointer is attached to the weight to show the reading. What will happen to the arrow when candles are lit

285. ## Physics

Deaths associated with lightning in South Africa are about four times higher than the global average. A typical thundercloud maybe at a potential of 1,2 times 10^8V and the thunder strike may result in a charge transfer of 20C. CALCULATE THE CURRENT

286. ## Algebra 2

How do you simplify (x^3+x^2-x-1)/(x^3-x^2-x+1)?

287. ## physics

which of the following MUST necessarily happen if work is done: a. energy must be released b. energy must be used c. energy must be converted from one form to another d. it is not necessary that any of these Must happen

288. ## science

A few clips made of magnetic material are placed in a container and a magnet attracts the clips from outside the container. Which of these must be true about the material of which the Container is made : a. It should be a metal b. It should be a non-metal

289. ## Physics

A golfer imparts a speed of 32.1 m/s to a ball, and it travels the maximum possible distance before landing on the green. The tee and the green are at the same elevation. (a) How much time does the ball spend in the air? (b) What is the longest "hole in

290. ## English

1. The volunteers there deliver food to old people. (What is the part of speech of 'there'? Does 'there' modify 'volunteers? Then it is an adjective? Or is 'there' an adverb?)

291. ## english

whats another way of saying "set your heart at rest" ?

How can knowing the multiplication. Properties help you evaluate five times twenty times sixty three

293. ## English

What does it mean by Australia's success is riding on the sheep's back?

294. ## physiology

Need help with this one, can't really locate the answer. Consider the bifurcation of a vessel at 20 degrees from the line of blood flow (region a) and a vessel that gives off two vessels at 90 degrees from the main stream of the vessel (region b). Which

is 53 a monomial

296. ## college

How many students must we sample if we want to be within 4% of the true proportion of female students at DeVry University when using a 95% confidence interval?

297. ## environmental science

A farmer planted a fiel od BT-123 corn and wants to estimate the yeild in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90000

298. ## math

Number sence What is the number? It is greater than 43 and less than 52. If you add the digit, the sum is 8. write the number word. I need help figuring this out not just the answer but how to get the answer.

299. ## Science

If you thought you had discovered a new element, how could you get the scientific world to accept your discovery? What roadblocks might you face, working outside the science community? How could you avoid being labeled a "crackpot"?

300. ## Physics

A person walks 2.8597x10^1 m East, then turns around and walks 8.7898x10^1 m West. The total time to walk this distance was 4.4004x10^2 s. What is the velocity of the walker, expressed to 3 significant figures? Note: Your answer is assumed to be reduced to

301. ## Algebra (Intermediate)

5. Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 9x + 6y = 60 -27x Ð 18y = -180 Here's where I am at now: 9x(3) + 6y(3) = 60 27x +18y + 60 27 x + 18y = 60 -27x -18y = 180

302. ## math

6d-3d+2d=35?

What physical property could you use to separate sand and sugar? How would you do it?

304. ## HEATHCARE

write a 1-2 page essay explaining how one of the following groups have addressed issues of cost control. healthcare, united states goverment and insurance

305. ## physics

A object is throw up with a speed of 25m/s. suppose that the gravity is 10m/s^2. Define the position and the velocity of the particle for the following times: 1second, 4second and 10second

306. ## physics

Sally travels by car from one city to another. She drives for 30.0 min at 80 km/h, 12 min at 105 km/h, and 45 min at 40 km/h. She spends 13.0 min eating lunch and buying gas. what the average speed for the trip?

307. ## Social Studies

Name 3 things that the Maya developed.... 1-their own writing system 2-their own counting system (including zero) 3-built 100 stone cities Is #3 correct? I can't find anything else!

On the average your heart beats about 72 times per min. At this rate, about how many times will it be 30 days in a year in your lifetime if you live to be 72?

309. ## chemistry

Explain in words how you would prepare 250 ml of a 3.000 M solution of Ba(OH)2 starting from a two liter bottle of 12.000 M Ba(OH)2

310. ## Foreign Language Classes

Where are Foreign Language Schools in Amritsar ?

311. ## Math

Ineed to find out, one fourth of y. I think is 1/4 not sure! Thanks

312. ## EDU

How many children are educated in pk 12 public schools in the united states?

313. ## Physics

what do you call the source of an intense narrow beam of coherent monochromatic light?

314. ## Science

Use the law of conservation of mass to explain why a rusty nail weighs more than the original nail.

1+1= wat?

316. ## ap chem

A 1.42 g. sample of a pure compound, with formula M2SO4, was dissolved in water and treated with and excess of aqueous barium chloride, resulting in the precipitation of all the sulfate ions as barium sulfate. The precipitate was collected, dried, and

317. ## chemistry

consider the following balanced chemical reaction: 2 Col3+3 K2S-> Co2S3+6 Kl assuming all that can react will react, how many grams of cobalt (III) sulfate will form when 1318.89 grams of cobalt (III) iodide are combined with 551.35 grams of potassium

318. ## math

derek planted a garden in the shape of a square 32 feet on each side. The garden has a stream on one side, but he plans so build a fence on the other three sides. If he puts a post every 8 feet, how many posts will he need?

319. ## physics

A 3.00 kg book is dropped from a height of 2.2 m. The acceleration of gravity is 9.81 m/s2 . a) What is its acceleration? Answer in units of m/s2.

320. ## Chemistry

.924moles of A(g) is placed in 1L at 700C where 38.8% dissociated when equilibrium was established. 3A 5B + 2C What is the value of the equilibrium constant at the same temperature? I keep getting .022

321. ## Physics

A person walks 2.8597x10^1 m East, then turns around and walks 8.7898x10^1 m West. The total time to walk this distance was 4.4004x10^2 s. What is the velocity of the walker, expressed to 3 significant figures? Note: Your answer is assumed to be reduced to

What number am I My tens digit is double my ones digit. I am less than 70 greater than 60? How do u figure this out need help to explain how to get the answer..

323. ## Algebra

What is the domain of the function f(x) = square root of (12x-24) I don't get this concept and I have a ton of these problems-can you please explain how to get it Thank you

324. ## Math

I need to divide 5/8 cup of buter into 12 servings

325. ## Algebra

what is the probability of pulling a spade from two decks of cards?

326. ## physics

A 200g mass is connected by a string to a large mass which is accelerating to the right at 2m/s2. What angle, θ, does the string make from vertical? What would the angle be if the acceleration to the right was 9.8m/s2? [Hint: Focus just on the ball. And

327. ## Algebra

Homework help please: algebra inequality 0.3 - 0.5n + 1 is greater than or equal to 0.4

328. ## English 2

What was the lesson taught in "Abraham and Isaac"? Thanks -MC

329. ## spanish

Isabel una chica norteamericana uses of the ver ser

330. ## math

Why is 24,005 greater than 8,999?

331. ## intro to economics

a draft system, whether professional sports or the military, enable those who are hiring to A.avoid paying a living wage B.produce what they produce at a lower cost C.educe the cost of labor D.transfer part of the cost of labor to someone other than

332. ## economics

What is the relationship between GDP and the business cycle? How can you use information about the business cycle when making a decision about a large purchase?

333. ## Math

do you mean 1/4 x y or 1/4 divided by y?

334. ## english

I need to write an introduction of an essay about food

335. ## Math-Calculus

If f(x)=5ex+4xe find f'(x) .

336. ## sociology

hi i would like to know if longitudinal study and participant observation is more or less the same thing??concerning their adv. n disadvantages???

337. ## math HELP

A baker used 16 pounds of flour and 12 cups of sugar to make several batches of cookies. the baker used the same amount of flour and sugar in each batch of cookies. what is the number of batches the baker could have made with his flour and sugar? this is

338. ## double negatives

the great white shark doesnt usually attack no person unless it confuses the person for a sea lion or seal

339. ## PHYSICS ---HELP!

The space shuttle releases a satellite into a circular orbit 700 km above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs?

340. ## Algebra

-4 - 2n + 4n > 7 - 4

341. ## physics

A sports car of mass 950 kg (including the driver) crosses the rounded top of a hill (r = 88 m) at 27 m/s. Determine the normal force exerted by the road on the car. Determine the normal force exerted by the car on the 72-{\rm kg} driver.

342. ## Chemistry

Hi, I have to take chemistry placement test for college this week. Does anyone here have advice for studying to prepare for the test? I took chemistry in high school 2 years ago so I don't remember anything.

343. ## PHYSICS H!!!!

NOT SURE WUT I M DOING WRONG--- SO HEREZ THE ? PLEEZE HELP ME!!! ----A projectile is shot from the edge of a cliff h = 225 m above ground level with an initial speed of v0 = 155 m/s at an angle of 37.0° with the horizontal Determine the range X of the

344. ## Chemistry

What is the fundamental premise of the collision theory? My answer: The fundamental premise of the collision theory is that in order for moving particles to react, they must first collide with a certain minimum amount of energy. Is my answer right?

345. ## physics

A stone is thrown vertically upward with a speed of 11.5 m/s from the edge of a cliff 95.0 m high. (a) How much later does it reach the bottom of the cliff? (b) What is its speed just before hitting? (c) What total distance did it travel? For (c), the

346. ## Economics

The Largo Publishing House uses 400 printers and 200 printing presses to produce books. A printer's wage rate is $20, and a printing press costs$5,000. The last printer added 20 books to total output, while the last press added 1,000 books to total

347. ## Physics

The space shuttle releases a satellite into a circular orbit 440 km above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs?

10x+7+3x

349. ## chemistry

What is the energy of green light with a wavelength of 5.50x10^-7m?

350. ## math

Find the slope intercept equation of the line that has the given characteristics? slope 5,3 and y-intercept (0,-9).

351. ## math

Extend the pattern to complete the table Input 1234567 output 1 8 27 ? ? ? ?

352. ## math

name the property illustrated by this equation, and describe the meaning of the property x times 5 =5x

353. ## English

The swimming strokes of the woman were jerky. Is this the correct verb to use in this sentence? The Subject is plural not so, so the verb must be plural too!

354. ## Chemistry

Describe two features of a catalyst: -used in the industrial manufacture of chemicals where the rate of production is important. -assists reactants in their collisions but remains unchanged at the end of the reaction. Is this what they mean by "Give two

355. ## Physics

A child slides down a hill on a toboggan with an acceleration of 1.5 m/s squared. If she starts at rest, how far has she traveled in 1.0 s, 2.0 s, and 3.0 s?

356. ## The Nineteenth Century

Which one of the following musical notations allows performers to improvise slightly with the rhythm? A. Sostenuto B. Moderato C. Allegretto D. Rubato

357. ## physics

what kind of information is indicted by a graph of the acceleration due to gravity versus ball's mass if the slope of the curve is zero?

358. ## statistics

SUPPOSE A URN CONTAINED 3 RED, 6 BLACK, 5 BLUE, 2 YELLOW AND 4 GREEN MARBLES. WHAT IS THE PROBABILITY OF DRAWING A BLUE MARBLE?

359. ## math

Which figure in the pattern below will have 99 squares? Figure 1 (picture of 1 square) Figure 2 (picture of 3 squares) Figure 3 (picture of 5 squares)

360. ## Geometry

the measure of the supplement of an angle is 40 more than two times the measure of the complement of the angle find the measure of the angle

361. ## Calculus

Inflection points of y= x/ x^2 + 25

362. ## 6th grade - EARTH SCIENCE

What are three interesting facts about the upper mantle of the earth? and 3 interesting facts about the lower mantle of the earth?

363. ## physics

A student librarian picks up a 2.2 kg book from the floor to a height of 1.10 m. He carries the book 7.8 m to the stacks and places the book on a shelf that is 0.35 m above the floor. How much work does he do on the book?

364. ## calculus

c be the curve of the equation y=3x^5+10x^4-10x^3+60x^2+25x-5. among all points on the curve over the interval [-1,3], find the coordinates of the highest slope and lowest slope

365. ## physics

The force on a wire is a maximum of 7.33E-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on.

366. ## Chemistry

Name some advantages of using acetaminophen instead of aspirin as an analgesic

367. ## crim j

Defendant A was suspected of selling stolen property from his dorm room. An undercover campus police officer knocked on Defendant A’s door. And when answer, asked for an affordable radar detector. In response, defendant A said that he just got two new

368. ## chemistry

how to dilute 7.75g of conc. HCl in 1000cm3?

20u-6(u+5)

370. ## math

use words to describe the rule of the following sequence.Then find the next three ters of the sequence.2,3,and6 to illustratethe associative property of multiplication

371. ## physics

A 1-kg mass hangs by a string from a disk with radius 5.1 cm which has a rotational inertia of 5 × 10-5 kg•m2. After it falls a distance of 1.4 meters, how fast is it going? What is the angular velocity of the disk?

p-5(2-3)+1

373. ## Algebra 1

The difference between the length and width of a triangle is 7 units. The perimeter is 50 units. What are the dimensions?

374. ## COM 156

Help with writing an outline on renting vs buying

375. ## physics

Protons move in a circle of radius 4.10 cm in a 0.570 T magnetic field. What value of electric field could make their paths straight?

376. ## Calc

find the cubic equation that has a y intercept of (0, -4) and has roots at x=1, x=2, and x= -5

377. ## Chemistry

A total of 2.00 mol of a compound is allowed to react in a foam coffee cup that contains 141 g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 degrees Celsius. What is the enthalpy of this reaction? Assume that no heat

378. ## social studies

Followed for one hundred years, one model for creating new territories was?

379. ## physics

A proton with a kinetic energy of 5.00E-16 J moves perpendicular to a magnetic field of 0.289 T. What is the radius of its circular path?

380. ## Math

Margarit liked to balance things. She balanced 3 pencil sharpeners and 2 one gram blocks witha 100 gram weight and another one gram block. She let x stand for the weight of one pencil sharpener and she claimed that x=30 grams. Was she correct? If not, how

381. ## algebra

How do I solve problems similar to: 2/3X - 1/2Y = 3

382. ## Math - Derivative of a polynomial function

A flaming arrow is shot into the air to mark the beginning of the a festival. Its height, h, in meters after t seconds can be modelled by the function h(t)=-4.9t^2+24.5t+2 How fast is the arrow traveling when it hits the ground? Explain how you arrived at

383. ## Physics

Two identical point charges are fixed to diagonally opposite corners of a square that is .5m on a side. Each charge is 3.0E-6 C. How much work is done by the electric force as one of the charges moves to an empty corner?

Data plotted on a graph results in a line that slopes upward from left to right. This graph tells you that a)when one variable increases, the other variable decreases. or b) when one variable increases, the other variable increases?

385. ## Math

Please help!!!! Solve each system graphically. Be sure to check your solution. If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this. 6x - 2y = 2, 9x - 3y = 1 My answer:

386. ## English

1. I am looking forward to my next visit there. 2. I am expecting my next visit there. 3. I am anticipating my next visit there. (Are they all the same and grammatical? What is the part of speech of 'there'?)

387. ## Chemistry

Hi I need help with the AXmEn classification of Acetic Acid.

388. ## English

1. I was moved enough to want to help her. ( Is this grammatical?) 2. I was all wet after I washed only the first dog. (Does 'all' mean 'completely' here?) 3. Today was best. 4. Today was the best. (Which one is grammatical?)

389. ## algebra

-108-9j I think you just add nine to the -108 and then that's it?

-2(2m-1)+4m

391. ## English

1. At the end of the day, I was very tired but happy. (What is the opposite of 'at the end of'? Is it 'at the beginning of' or 'in the beginning of'?)

392. ## Statistics

What is an example of a research problem at your organization that would benefit from the use of either descriptive statistics or probability distribution statistics?

393. ## english

Fix these questions if they are incorrect. If they aren't, just leave them alone. 1. To change the tire, John rose the wheel with a jackhammer.

394. ## Statistics

How do insurance companies use descriptive statistics and probability distributions to project health and auto insurance premiums? In regards to age, why is there an inverse relationship between the two (health and auto insurance) premiums?

3x-5x=

396. ## physics

In the simulation above the motion continues for 3 seconds. If the object travels a distance of 21.3 m in that time determine: (a) the acceleration of the object during the 3 second period, (b) the maximum speed of the object during the 3 second period.

397. ## english

we are supposed to write this passage from "a midsummer night's dream" in our own words: Set your heart at rest The Fairyland buys not the child of me His mother was a vot'ress of my order And in the spiced Indian air by night Full often hath she gossip'd

398. ## Math

In Mathematics: how much interest will you have to pay for a credit card balance of \$554 that is one month overdue if a 20% annual rate is charged?

399. ## college

Defendant A was suspected of selling stolen property from his dorm room. An undercover campus police officer knocked on Defendant A’s door. And when answer, asked for an affordable radar detector. In response, defendant A said that he just got two new

400. ## English

1. He wants to do two kinds of volunteer work this month. 2. He wants to do two volunteer works. (Are they correct?)

401. ## geometry

Two triangles are similar: the first has a base of 12 feet and a height of 16 feet; the second has a base of 9feet. What is the height of the second triangle?

402. ## statistics

You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 5 and a population standard deviation 1 and a sample size of 4. Machine 2 has a sample mean of 8 and a population standard deviation of 2 with a

403. ## Physics, relativity

I read this in a write-up of an experiment using atomic clocks: To reveal these effects, required the use of highly accurate atomic clocks, calibrated to check that they are perfectly in sync with each other – ticking down the nanoseconds (that's one

404. ## Algebra

please show steps solve 9 - (9)squared > 10x - x

405. ## ENGLISH

What criteria do you suggest I make for my evaluation paper? My topic is that the school's celebratory bonfire for the basketball championship is a waste of time.

406. ## math

the deck in hope's backyard is round. It has 5 posts evenly spaced around the edges to support a trellis. For her birthday party, shewants to connect each post to all the other posts with crepe-paper streamers.How many streamers will she need?

407. ## government

why does the constitution not refer to local government?