# Questions Asked onJanuary 7, 2009

1. ## trigonometry

Find the values of s in the interval [0,pi/2] that make the statements true. 1. sin s=0.75438373 2. cos s=0.74241049 3. cot s=5.6394377 Can you tell me how you solve these.

2. ## Chemistry

The temperature of a sample of neon is raised from 20 degrees C to 40 degrees C, the average kinetic energy of the neon atoms changes by a factor of? The answer is suppose to be 313/293, but I don't get how. My idea was since average KE = (3/2) kT then the

3. ## Earth Sci

A cobble-sized sediment is naturally broken off the steep sides of a valley in a mountainous region. The sediment falls onto a glacier that occupies much of the valley. Over several years, the sediment “falls through” the glacier and is then dragged

4. ## trigonometry

can you please tell me what is the sec of (-855 degrees). and how to find it. thnks

5. ## math-statistics

An appliance manufacturer stockplies washers and dryers in a large warehouse for shipment to retail stores. Sometimes in handling then the appliances get damaged. Even though the damage may be minor, the company must sell those machines at drastically

6. ## trigonometry

a wheel is rotating at 8 radians/sec, and the wheel has a 47 inch diameter. to the nearest foot, what is the velocity of a point on the rim in ft/min? all i know is that you have to use the formula v=r.w

7. ## Algebra 2

What's the answer to Algebra With Pizzazz B-50, Page 60???

8. ## trigonometry

1. A boat sails for 4 hours at 35 mph in a direction 135degrees 51'. how far shouth has it sailed (to the nearest mile)? Is it 96 miles?? 2. A ship travels 55 km on a bearing of 11degrees, and then travels on a bearing of 101degrees for 133 km. find the

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

10. ## psychology

Which of the following statements regarding sex hormones is true? A female sex hormones aren't involved in the primary development of the sex organs B female sex hormones are necessary for the primary development of the sex organs C without sex hormones,

11. ## pre calculus

You set up a business and make an initial investment of \$10,000. The unit cost of the product is \$2.85 and the selling price is \$4.95. How many units must you sell to break even?

12. ## Chemistry

My teacher hasn't really talked about types of reactions; he's just given us a list of net ionic equations involving water and different elements including Lithium, Sodium, Calcium, Magnesium, Lanthanum, and Potassium to memorize. However, his test

using only 15 of these letters,tlpuytsiaaganbrnlrog,what do you call a female bug that floats?

14. ## pre calculus

The perimeter of a rectangle is 480 meters and its length is 1.5 times its width. find the dimensions of the rectangle.

15. ## algebra

the area of a pizza is 220 square centimeters. what is the radius

16. ## Organic Chemistry

When 2-methylpropene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. What new substance has been formed?

17. ## Science

What letter represents the nucleus of a cell?

18. ## algebra

without graphing classify each system as independent, dependent, or inconsistent. -2x-y=9 3x-4y=-8

19. ## Chemistry

1. Why does the distance between two nuclei in a covalent bond vary? 2. How does a molecular orbital differ from an atomic orbital?

20. ## trigonometry

please check my answers. 1.Find the area of the sector of a circle. r=11.8cm, theta-pi/7 radians I got 31.2cmsquared 2.Find the radius of a circle in which a central angle of pi/6radian determines a sector of area 76square meters. I got 17.03m 3.Find the

21. ## Chemistry+need help checking work

Using aervage atmoic masses for each of the following elements, calculate the mass, in amu (grams) A. 635 atoms of hydrogen ---> 1 mole of H = 1.01g = 6.022 x 10^23 atom 635 atom of H 1.01g/6.022 x 10^23 atom I got 1.06 x 10^-21 amu. I got that answer

22. ## chemistry

I don't understand net ionic equations; for example, when you're given Pb(NO3)2(aq)+2LiCl(aq) how do you know that in the product Pb has to be paired with Cl2 and Li with NO3 to make PbCl2(s)+2LiNO3(aq)?

23. ## psychology

You can be certain that a child has suffered from fetal alcohol syndrome should you discover A smaller-than-average brain size B low level of infant activity C poor vision D above-average physical growth followed by below-average growth i believe the

24. ## Math

Rudy worked hard all summer. Before school started he decided to go shopping and spend some of his earnings. He spent 1/3 of his money on a new shirt at HOT Fashions in the Mall. He then went to Marvin's Music and bought a cd with 1/3 of his money he had

25. ## trigonometry

Assume that the cities lie on the same north-south line and that the radius of the earth is 6400 km. Can you help me find the latitude of Spokane, WA if Spokane and Jordan Valley, OR, 43.15degreesN, are 486 miles apart. I think its either A. 47.50degN or

26. ## Chemisty

If ten drops of 0.3 M HCl are mixed with ten drops of 0.3 M Na2S2O3, what will be the concentration of each chemical in the mixture? Please help, i am pretty sure that the concentration should be 0.3 M but i am not sure if i am supposed to do somthing with

27. ## Organic Chemistry- help Dr. Bob

1. What is the maximum volume (at STP) of the butene mixture that could be obtained by the dehydration of 81 mg of 2-butanol? 2. When 2-methylpropene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. What new substance has

28. ## Filipino to english

kagigising ko lang,, natulog agad akon padating ko, kasi hindi ako makatulog kahapon bago pumasok,, kaya antok ako sa work kanina, kaya pag uwi ko natulog ako,, 12:20pm na dito,, ingatka

29. ## trigonometry

Can you tell me if these answer is correct. 1. From a boat on the lake, the angle of elevation to the top of a cliff is 35degrees13'. if the base of the cliff is 2664 feet from the boat, how high is the cliff(to the nearest foot)? i got 1880 feet. is this

30. ## trigonometry

assuming that Earth's radius is 6400 km, find the linear velocity of Quito, Equador, a city on the equator. (Use pi=3.1416 and 1.6 km=1 mile).

31. ## trigonometry

find the exact values of s in the given intervals that have the given circular function values. 1. [pi/2,pi]; sin s=square root 2/2 2. [pi/2,pi]; cos s=-square root 3/2

32. ## trigonometry

these two are the same type of questions but i have no clue how to figure out the answer. i have tried drawing it out but don't know what to do after that. 1. a bicycle with a 28-inch wheel(diameter) travels a distance of 800 feet. how many revolutions

33. ## Urgent algebra help!

Here's my question. Please walk me through it so I can fully understand it. Jon begins jogging at a steady 3 meters/sec down the middle of Lane #1 of a public track. Laaura starts even with him in the center of Lane #2 but moves at 4 meters/sec. At the

34. ## Algebra I

Stephen is walking from his house to his friend Sharon's house. When he is 12 blocks away, he looks at his watch. He looks again when he is 8 blocks away and finds that 6 minutes have passed. Write 2 ordered pairs for these data in the form (time, blocks).

35. ## math help pleaseee (: ! <345

One hiking club charges \$20 to become a member and \$5 to participate on each hike. Anotherclub charges no membership fee, but charges \$7 to participate on each hike. How many hikes must you go on to make the first club more economical ?(:

Here's my question. Please walk me through it so I can fully understand it. Jon begins jogging at a steady 3 meters/sec down the middle of Lane #1 of a public track. Laaura starts even with him in the center of Lane #2 but moves at 4 meters/sec. At the

37. ## social studies

what was the name of the god who guarded the livers canopic jar

38. ## psychology

When the XY genetic code begins to assert itself A ovaries begin to differentiate B testes begin to differentiate C estrogen begins to be produced D brain development begins to occur more rapidly i believe the correct answer is B

39. ## human resources

What steps you would take to prepare yourself for a career in International Human Resource Management (HRM)?

40. ## O CHEM - dr. bob

1. What is the maximum volume (at STP) of the butene mixture that could be obtained by the dehydration of 81 mg of 2-butanol? 2. When 2-methylpropene is bubbled into dilute sulfuric acid at room temperature, it appears to dissolve. What new substance has

41. ## Chemistry

1. How does the strenght of a covalent bond relate to bond length? 2. Compare the degree of polarity in HF, HCL, HBr, and HI? 3. Given that it has the highest electronegativity, can a fluorine atom ever from a non-polar covalent bond? Explain your answer.

42. ## science

which of these is always equal to the number of protons in an atom

43. ## Algebra

WELL SOMEONE HELP ME SOLVER THIS PROBLEM PLEASE!!!!!! Janet can shovel snow from her driveway in 55 minutes. Jim can do the same job in 50 minutes. How long would it take Janet and Jim to shovel the driveway if they worked together?

44. ## social studies

which of the following statements best describes kennedy's point of view? a.the only way that people can influence their government is by writing letters to their elected officials. b.you are not a citizen unless you vote. c.voting effects everyones

45. ## Math ....urgent help

i just don't get this elimination method ..... plz help me plz.....teach me how to keep the x and y in a parallel line. and which number to multiply.....plz help -5x-4y=-11 10x=-6-y help me plz......

Here is a question on free trade. Country X and Country Z have a free trade agreement. If Country X buys trucks from Country Y and sells the trucks to a car dealer in Country Z, does the buyer need to pay duty on trucks. Why or why not? I think that yes,

47. ## english

Is this examples of Irony and Juxtaposition? In that three foot pile now-irony one earthquake in Alaska, seventeen American soldiers- juxtaposition

48. ## math

write a rate that can be calculated from the given information. include the rate unit. 1. there are 40 cars parked in the 6 rows of that parking lot. 2. shante read 3 pages in 5 minutes. 3. latisha read 31\2 pages in 5 minutes.

49. ## Filipino to english

Can anyone help me with this message. Its suppose to be in Filipino and I need to know what it says in English!! kagigising ko lang,, natulog agad ako padating ko, kasi hindi ako makatulog kahapon bago pumasok,, kaya antok ako sa work kanina, kaya pag uwi

50. ## Chemistry -- plz help

how do i calculate the percentage of ionic character .. ex. H-O = electronegativity difference = 1.2

51. ## Human Behavior

What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact of using multiple perspectives when providing services to a family or individual.

what do you call a female bug that floats?

53. ## English - Shakespeare

In "Othello" Desdemona is slapped by Othello in Act 4 Scene 1. Why soesn't she defend herself eventhough she's innocent? I was thinking that maybe she was just too stunned to do anything or maybe she thought that something was wrong such as he was ill or

54. ## math

The tread depth of the tires on your family's new car is 3/8 inch. you predict that, as a result of driving the car, the change in tire tread depth will be about -3/64 inch per year. A. write a variable expression for the tire tread depth after y years of

wriet a rate that can be calculted from the given information. include the rate unit. 1. there are 40 cars parked in the 6 rows of that parking lot.

56. ## math

twenty times the square of a non-zero number is equal to 15 times the number. what is the number?

57. ## chemistry

What happens in terms of energy and stability when a covalent bond forms?

58. ## math help urgent

what di di do wrong in this??? the question is: x-8y=18 -16x+16y=-8 i did : first multiplied the first equation with 2 then 2x-16y=36 -16+16y=-8 ----------- -14x=28 x=28/-14 x=-2 now x-8y=18 (-2)-8y=18 -8y=18+2 -8y=20 y=20/-8 y= 2.5 plz help me what did i

59. ## Physics - Submerged Cylinder

A cylindrical diving bell 5 m in diameter and 10 m tall with an open bottom is submerged to a depth of 150 m in the ocean. The temperature of the air at the surface is 20 degrees Celsius, and the air temp 150 m down is 2 degrees Celsius. The density of

60. ## essay

In the famous play, Julius Caesar, the most important characters would have to be Caesar and Brutus. Each character has its distinctive role, Caesar as the ruler of Rome and Brutus as one of the Caesar¡¯s best friends. They both have the same goal, but

61. ## math

ok, i typed it out right this time. (5/4)x+(1/8)x=11/8+x (10/8)x+(1/8)x=11/8+x (11/8)x=11/8+x (3/8)x=11/8 Ok now I subtracted from both sides How do I finish the problem out?

62. ## chemistry

How do I balance this equation for silver nitrate and sodium chloride reacting to form sodium nitrate and silver chloride. AgNO3 + NaCl = AgCl2 + NaNO3

63. ## Algebra

Write the equation of a line in slope intercept form that contains (3/4, 1/2) and has the same slope as the line described by y + 3x = 6.

64. ## pre-algebra

You want to paint a wall that is 8 3/4 feet high and 11 1/4 feet long. You have a can of paint that will cover 200 square feet with one coat. A. find the area of the wall. b. if you want to apply two coats of paint , do you have enough paint? explain

65. ## math

In 1993, the life expectancy of males in a certain country was 61.3 years. In 1999, it was 64.7 years. Let E represent the life expectancy in year t and let t represent the number of years since 1993. The linear function E(t) that fits the data is? answer:

66. ## psychology

A pregnant woman is most likely to decide to use the Lamaze method because she A is interested in eliminating the pain of delivery B would prefer to speed up the delivery process C would rather take a longer time in delivery to reduce trauma to her baby D

67. ## trigonometry

can you tell me how to actually do this. find thenumebr of radians through which the hour hand of a clock turns in 5 hours. i don't know what i did, this is what i wrote: 360degrees=1 hour 1800 degrees=5 hours 1800(pi/180) somehow i got 10pi which is

68. ## Physics

According to Kinetic Theory, the molecules of a gas at given temp: a) all move with speed Vrms b) all move at speeds greater than Vrms c) speeds less than Vrms d) above, at, or below Vrms e) none i think its D as Vrms is an average but i am not sure

69. ## chem

what would cause scientists t change the current model of an atom

70. ## chem

how many protons, nnutrons, atomic mass, mass number, and charge to each of the following have? sodium atom fluorine ion stannic ion for sodium i have protons=11 electrons=11 neutral charge how do i find the number of neutrons cause im pretty sure mass

71. ## Human Services

What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact of using multiple perspectives when providing services to a family or individual.

72. ## psychology

You would be concerned about possibility of Rh incompatibility if A enzymes produced by the fetus infect the mother B bacteria from the mother cross the placenta and are transmitted to the fetus C antibodies produced by the mother are transmitted to the

73. ## chemistry

what is the electron configuration of a calcium atom whose atomic number is 20

74. ## Human Behavior

What are the merits of multiple perspectives when examining human behavior? Why is it important? Provide examples of the impact of using multiple perspectives when providing services to a family or individual.

75. ## math

how do i solve this logarithm log(base 9)X + 3log(base 3)X = 14

76. ## math

In 1993, the life expectancy of males in a certain country was 61.3 years. In 1999, it was 64.7 years. Let E represent the life expectancy in year t and let t represent the number of years since 1993. The linear function E(t) that fits the data is? answer:

77. ## science

earth science physical geology; If rock A cuts across rock B, then rock A is rock B a. younger than b. the same age c. older than

78. ## Alg 2

Can someone tell me how to factor 2a^2 - 16ab + 32b I just need someone to help me get started, and I want to see if I can finish it.

features that define the performance of a system are called what?

80. ## Physics also

A cylindrical diving bell 5 m in diameter and 10 m tall with an open bottom is submerged to a depth of 150 m in the ocean. The temperature of the air at the surface is 20 degrees Celsius, and the air temp 150 m down is 2 degrees Celsius. The density of

81. ## math

Sam can do a job in 4 days that Lisa can do in 6 days and Tom can do in 2 days, how long would the job take if Sam, Lisa, and Tom worked together to complete it? A. 0.8 days B. 1.09 days C. 1.23 days D. 1.65 days E. 1.97 days thanks.

82. ## math

Solve system of equations x+3y=7 (1) x=8-3y (2) no solution

83. ## english grammar

He can bake cakes He can make pastries and pies.

84. ## english need help

what does thesis mean? like what i want to know is whether it is only a sentence or a paragraph?

85. ## Math

A square piece of cloth is folded in half to form a rectangle. If the resulting rectangle has a perimeter of 8 inches, what are the area and perimeter of the square piece of cloth?

86. ## ENGLISH

our assignment for homework was to take a nursery rhyme and make it a different point of view. in order to do that we were allowed to add in phrases to the rhyme any place we thought would sound good. so i took Little Miss Muffet and tried to make it

87. ## alg 2

Can someone tell me how to factor 2a^2b - 16ab + 32b Should I factor 2b out of it?

88. ## Atomic Mass

Hi if I divide a molar mass of an element by Avogadro's number (63022X10^23) will i have the mass of 1 atom of the element? Thanks

89. ## social studies

ok this is the question jefferson believed that the creation of a national bank was a)unconstitutional b)faction c)democratic republicans d)federalist

90. ## chemistry

arent the allotropes of carbon diamond buckminsterfullerene(or whatever its called haha) and graphite?

91. ## math

could someone please check these problems for me? Thank you! 1. -0.7x

92. ## ESSAY

How was Brutus considered as ¡®the noblest Roman¡¯ despite the fact that he was one of the conspirators? Julius Caesar, written by William Shakespeare in 1599, was one of the most successful plays in our history. Although it is called Julius Caesar,

93. ## math

could someone please check these problems for me? Thank you! 1. -0.7x

94. ## algebra

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mph and train B is traveling at 110 mph. Train A passes a station at 3:10 pm. If train B passes the same station at 3:40pm, at what time will train B catch

95. ## ENGLISH

our assignment for homework was to take a nursery rhyme and make it a different point of view. in order to do that we were allowed to add in phrases to the rhyme any place we thought would sound good. so i took Little Miss Muffet and tried to make it

96. ## science

No more solute can dissolve in a solution if it is a--------solution.

97. ## math help pleaseee (: ! <345

the sales tax rate in a certain state is 5% find the total price paid for a apair of shoes that cost \$47

98. ## World History

Do you support the colonization of the Philippines by the United States? Explain.

99. ## speech

Can somebody give me examples of words with accented schwa? I also need some videos on how to pronounce words with accented schwa. Thank you.

100. ## chemistry

continued from before.... the question was what are three chemical characteristics and ten physical characteristics so then would i have to say something like -when iron rusts or -sugar burns or something like that i was thinking that would just be a

101. ## Calculus

Thanks Remy. I have one more - 2y + 9xy-4=0 I got -9y/2 + 9x

102. ## ENGLISH

can anybody give me an example of limited omniscient. i already know that it is where you can hear the thoughts of one of the characters but i would just like an example in a sentence. please and thank you

jose and sara are walking around the track at the same time. jose walks one lap every 8 min. sara walks a lap 6 min.what is the least amount of time they would both have to walk for them to cross the starting point together

104. ## math

If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 minutes, and Jack can mix 20 drinks in 15 minutes, how much time will it take all 3 of them working together to mix the 20 drinks? A. 2 minutes and 44 seconds B. 2 minutes and 58 seconds

105. ## Basic Math

Adding real numbers true or false ?| - 8 | + | 3 | = | - 8 + 3 | it is true. Can somebody tell me if I'm right?

106. ## Math

Ok heres another factoring that I need someone to check Problem: -x^3 + 27 -(x^3 - 3^3) So I moved the positive and found out what cubed would make 27 Using the forumla: (a-b)(a^2+ab+b^2) -(x-3) (x^2 + 3x + 9) Right? Or did I make a mistake?

107. ## math help me plz

elimination method 1> 7x+15y=32 x-3y=20

108. ## Algebra 1

I need some help please. I don't understand the math that we are doing. Please explains to me in detail how to do radical expressions and like how to simplify them and stuff. I don't get it and it would be much appreciated

109. ## chem

A sample of 45.0 ml of 0.750M AgNO3 solution is added to 65.0ml of 1.375M Cr(NO3)3 solution. Calculate the resultant concentration of nitrate ions in the mixture.

110. ## chem

The term Intrinsic denotes a characteristic or property of some thing or action which is essential and specific to that thing or action, and which is wholly independent of any other object, action or consequence. A characteristic which is not essential or

111. ## Algebra

I am having problems figuring out some of my word problems for this week. Could someone check these? The equation y=-1777x+27,153 can be used to predict the number of gun deaths in the U. S. x years after 2000, that is, x=0 corresponds to 2000, x=2,

112. ## algebra

On 3 consecutive passes, a football team gains 5 yards, loses 28 yards, and gains 41 yards. What number represents the total net yardage? 5-28+41 18

113. ## noli me tangere

Hi,there! I'm from Philippines. I need to find the original version of the "Noli Me Tangere" which is written in Spanish with the translation in English.

Wich 3 flowers add up to 85 cents? Tulip-48 cents Rose-52 cents Dafidale-25 cents Viloit-37 cents Sunflower-23 cents

115. ## Assistance Dogs

Please check my answer thanks:) After a dog learns to perform a specific task, the task must then be generalized to various locations. The task must then be _______, so that the dog is able to perform the response despite any distractions such as crowds,

116. ## Math

2(5x + 1) = 3(3x + 7) a) x = 19 b) x = 20 c) x = 21 Can you please explain it step by step please? I don't get the question and I want some easy, thorough explanation with a through guide of what you're calculating. Thank you so much!

117. ## Basic Algebra

Solve the following equation: 3(2x - 5) = 3(x + 1)

118. ## science

Does anyone know what letter represents the nucleus of a cell?

119. ## science

what color can be formed by combining complementary colors?

Does anyone know where I can find video clips of the blue planet ecspecially the part on the coral reef?It is related to the question about why is the coral reef an ecosystem?

here is the case. While in Australia, you discover a raspberry jam with incredible flavour. You know Canadians would enjoy this product, so you import it. The jam sells in stores for \$5.00 a jar, a slightly higher price than standrad jam. The Canadian

What is the average (mean) distance you walked? Mon-1 2/3 mi. Tues- 2 3/4 mi Wed - 3 1/3 mi. Thurs. - 1 2/3 mi. Fri - 2 3/4 mi. You plan to walk on Saturday. How far must you walk on this day so that your 6 day average is 2 1/2 miles?

123. ## english

what are the reasons why the students feel sleepy during classes?

125. ## English

Why is Edgar Allan Poe insane?

126. ## chem

sorry for all the questions i have an exam tomoro! but what is intrinsic or intensive are they the same?

127. ## Calculus

Here's another one - I think that I am starting to understand it. Find dy/dx by implicit differentiation: x^7 = cot y My answer is csc^2y / 7x^6

128. ## science

what is defined as a change of position

WRITE A UNIT RATE 250 MILES FOR 20 GALLONS

130. ## Algeba

Could someone show me how to solver this problem Please!!! Find allnumber for which the rational expression is undefined? 6/y-9

131. ## math

Can someone help me finish this problem I am stuck! 5/4x+1/8x=11/8+x 10/8x+1/8x=11/8+x 11/8x=11/8+x 19/8x=11/8

132. ## psychology

You are likely to be observing the rooting reflex when the baby A turns his or her head and mouth toward a stimulus tha brushes his or her cheek B sucks at almost any object that touches his or her mouth C voluntarily seeks out objects to grasp and to hold

133. ## Chemistry

When working with the combined gas law you would use the following equation: (P1)(V1)/T1 = (P2)(V2)/T2 I am not quite sure how you would rearrange this equation to solve for T2. Please Help ! :)

134. ## editing...

"Expand and strengthen my academic and professional development." Which other word could I replace the word development with...it does not seem to work in the above sentence....

135. ## math

How many degrees are in a hexagon?

136. ## psychology

which of the following hormones is present in a woman's bloodstream right before she gives birth? A prostaglandis B androgen C amniotic fluids D oxytonic i believe the correct is D but i'm not sure

137. ## Chemistry/Physics

A Sample of gas is held at constant pressure in a cylinder moved by a closed piston. If the volume is halved, how will the new Vrms speed compare with the old one? a) square root of 2 times greater b) the same c) 2 times greater d) 4 times greater e) none

138. ## physics

Hi if I divide a molar mass of an element by Avogadro's number (63022X10^23) will i have the mass of 1 atom of the element? Thanks

How do I simplify 4/8 + 5/8 and 7/9 + 6/9? Thanks

140. ## english

JOIN THE SENTENCS USING NEITHER-------NOR1.Mani is not good at maths.Mani is not good at Geography.

141. ## World History

Do you support the colonization of the Philippines by the United States? Explain.

142. ## rehabilitation

under what circumstances is it easy to turn your will and life over to the care of god

143. ## Science

When trying to predict, tomorrow's weather, what area would you most want weather information about?

144. ## math - reqents

i need sOme seriOus heLp . On . some . linear equatiOn . inequalities packet that i have . please HELP =[

what is the study of substances containing carbon?

146. ## chemistry

how many moles are in carbon? ow many moles of each element are in methane?

147. ## chemistry

what are three chemical characteristics and ten physical characteristics so far for physical i have -color -taste -smell -size -luster -shape -texture is this what they are asking for?

148. ## science

The liquid in which a solid dissolves is known as a-------

indicate the measure and the measure unit. 1. there are four windows in the room each 36 inches wide. 2. luisa received a gift of \$100 from a relative when she graduated from 8th grade.

150. ## Social studies

I need 10 facts about the Islam religion Thank You: Leslie

151. ## trigonometry

i posted this question up before but it didn't show up. anyways.. i need help determining whether these two statements are true or not. i tried converting them into square roots but never got the right answer. like cos30=square root 3/2. here they are 1.

152. ## Physics

Is the average velocit over a specific timeinterval always half of the instantaneous velocity at the end of the interval. I said False, because if the curveis not linear this would not be true. Would this be a a sufficent answeror am I missing anything.

153. ## psychology

Why is the placenta unique as to its origin? A it's the first fetal structure to develop B it's allows the mixing of oxygen and nutrients between mother and child C its develops from material supplied both by the mother and the fetus D it provides the

154. ## algebra 1

You recently have found a location for your bakery and have started implementing the first phases of your buisness plan. Your budget consists of an 80,000 dollar loan from your family and a 38,250 dollar small buisness loan and these loans have to be paid

155. ## Math

I need some help please. I don't understand the math that we are doing. Please explains to me in detail how to do radical expressions and like how to simplify them and stuff. I don't get it and it would be much appreciated. here is one of the problems.

Why is the coral reef an ecosystem?

157. ## History

Did Mayans sacrifice by using fire? Thanks for your help!!

158. ## social studies

What was Hamilton and his supporters called?

159. ## 4th Grade Social Studies

What landform in Mexico is compared to the Grand Canyon in the U.S.?

160. ## biology

how do you recognize someone with turner's syndrome?

161. ## math

how many mL in .00670 grams of a substance that has a density of 1.96 g/cm3. do you do 1.96g/cm3 divided by .00670 grams to solve for cm3 since cm3 = mL

162. ## English/Latin Translation

How do you say "live free" in latin?

163. ## Hunting Training for Dogs

Please check my answer thanks :) True or False field trials are noncompetitive events I say that it is True

164. ## English

Why is Edgar Allan Poe insane?

165. ## Algebra 1a

Can you help me ? (: solve for t 2 c=3s t The s has an exponent of 2.

166. ## Assistance Dogs

Please check my answer thanks:) Heidi and her sight-impaired owner Becky are walking from school back to Becky's apartment. There's a water-main break in the next block and Heidi turns to take an alternate route to the apartment. Becky tries to continue

167. ## song interpretation

my daughter got an assignment to prove the genre of the song hello muddah hello faddah using the song as proof. what does this mean I looked up the word genre in the dictionary and that was a waste can u pls help me.....thanks

168. ## IT 221

You are in the implementation phase of a project and your customer indicates they need a specific change to the project that changes the scope of the deliverables. How would you handle this request and why?

169. ## psychology

A pregnant mother may be wise to avoid all alcohol, since even social drinking may result in A fetal alcohol effect B a near certainty of miscarriage C schizophrenia D growth retardation i believe the correct answer is A

170. ## Calculus

Answer ? - impicit differentiation Find dy/dx & d^2y/dx^2 y^2 - x^2 = 2 is the answer dy/dx=x/y; d^2y/dx^2= y^2-x^2/y^2

171. ## Alg 2

Ok heres another factoring that I need someone to check Problem: -x^3 + 27 -(x^3 - 3^3) So I moved the positive and found out what cubed would make 27 Using the forumla: (a-b)(a^2+ab+b^2) -(x-3) (x^2 + 3x + 9) Right? Or did I make a mistake?

172. ## geometry

whats the formula for area of a triangle pyramid?

What's the benefits of trade. Description of increased quantity and quality of goods and access to resources.

174. ## english

what is an affix ....is it the ending added to a root word

175. ## Calculus

I am lost. Find dy/dx by implicit differentiation. 1) 5y-2x^2=x-3

176. ## Math 115

4 - (-) + 1 ____________ 2 - 2 ÷ (2) I have asked for help with this and Ms Sue said is was not able to be solved. Here is what my instruscot says: Debbie, it definitely has an answer. Be careful with your signs and remember that in the denominator you

A company has a problem with one of their directors, they have written to say that he is failing to contribute fully with the company. They would like to remove him, but would this cause them any financial problems?

I'm supposed to write a paper on the "real" reason behind not running in the house. It's just why you think you shouldn't run in the house, just something funny nothing real. What should I say is the reason, that will make my class laugh?

179. ## English

Please check my essay and make corrections. In the famous play, Julius Caesar, the most important characters would have to be Caesar and Brutus. Each character has its distinctive role, Caesar as the ruler of Rome and Brutus as one of the Caesar¡¯s best

180. ## Criminal Procedures

Criminal Procedures Topic At 12:00 p.m., on August 16, 2005, Robert Smith began his journey to freedom down the halls of the prison he called home for the last 2 years. Despite receiving a 5-year sentence, Robert was paroled for good behavior. His lawyer

181. ## math

find the product. 2/3 x 7/8

182. ## math

What does it mean to have two matrix variables written vertically inside parentheses? In other words, if A and B are matrices, what does this mean (imagine there is one set of parentheses spanning both rows): (A) (B) I'm trying to understand a least

183. ## algebra

Amy paid \$62.18 for shoes during a 15% off sale. What was the regular price? \$71.51 is this correct?

184. ## spelling

brother is to mother like fly is to? 4 letters and must include scr spr str or thr

185. ## math

x^2 = x^2-1 = x^2-1 = (x-1)(x+1) -x = 1 x-1 x-1 Is this right, please help thanks

186. ## Assistance Dogs

Please check my answer thanks :) Service dogs are often taught to recall to a person A. sitting in a wheelchair. B. lying down. C. standing with crutches. D. kneeling down I picked A

187. ## analogies/spelling

fifteen is to five like nine is to ? 5 letters starts with scr, spr, str, thr

188. ## Assistance Dogs

Please check my answer thanks :) 10. Guide dogs are usually at least medium-sized because they A. need to be able to reach up to counters and table tops. B. are required to pull wheelchairs during training. C. need to be able to see above obstacles. D.

189. ## Pre-algebra

its telling me to find the product 5/6 x (-8) what i got was -6 2/3 can you tell me if i was right and how?

190. ## psychology

As it turns out, children whose mothers took diethylstilbestrol during pregnancy A show serious mental deficts by age five B have higher infertility rates when grown C are more likely to develop lung cancer late in life D are more likely to engaged in

191. ## Accounting 101

What type of transaction decreases a liability and increases a liability.

192. ## math

F6P = 0.504(1.3 − F6P) -solve for F6P?

193. ## Dr Bob

okay and i don't understand what they are asking for for chemical characteristics. i was thinking like density, melting point, and boiling point but arent those physical too?

194. ## math

what is the answer to 4/7 divided by 8/9 my teacher isnt very good at helping me

195. ## english

Rewrite the following as complete sentence neither---nor 1.Shanti doesnot have an extra pen.Neelima doesnot have an extra pen either.

196. ## English

Please check my essay and make corrections. In the famous play, Julius Caesar, the most important characters would have to be Caesar and Brutus. Each character has its distinctive role, Caesar as the ruler of Rome and Brutus as one of the Caesar¡¯s best

197. ## chem

are these correct when solving for proper significant figures 2.33 + 4.0045=6.33 .000456 + 1.0023=1.0027 2.33/4.0045=.582

198. ## eth 125

Post your response to the following: If someone made the below statements to you, how would you explain that the statements are misconceptions? Include whether you think most Americans believe these misconceptions, and why or why not. o Asian Americans and

199. ## health care

Does the AMA ethics opinion mention encryption as a technique for security

200. ## college

can someone please help me solve the following problems Solve the following: 1. 2/7 - 1/3 = ? 2. 4/5 x 15/2 = ? 3. 2 1/2 ÷ 3/4 = ?

201. ## math logarithm

proof: 2/ log a base 9 - 1/ log a base 5 = 3/ log a base 3??

202. ## technology

What are the parts of an Overhead Projector?

203. ## matyh

x^2 = x^2-1 = x^2-1 = (x-1)(x+1) -x = 1 x-1 x-1 Is this right, please help me solve

204. ## Math

What is the scientic notation of 6,100?

206. ## Science

what are some things you can see in the sky?

207. ## ALGERBA

Can someone help me solve this please? [SQRT(2x2 + 6x + 4)] = x + 1

How can you prove the genre of the song, "Hello Muddah Hello Faddah", using the lyrics in the song?

t/3

210. ## lit

could you help i need abou 6 ideas for a expository piece Thanks:leslie

211. ## Literature

would you say darwinism is the most believed out of all the evolutionary theories?

212. ## Basic Math

How do I do this problem : (-9)^2 - (-6) ^2

213. ## Basic Math

(-9) to thr second power minus (-6) to the second power: I got this -9 * -9 - (-6)(-6) = 81 - 36 = 45 is this right ?

who is lenin

215. ## social studies

When did hatshpsut come to power?

216. ## simple science

1. growing vegitation on top of a building: what is it called? 3. what are three ways trees cool down an area?

217. ## Basic Math

Can somebody see if I did these right? 16 divided by (-2)(-4) over 2 to the third power plus 4= 16 divied by 8 over 6 + 4= 2/ 10 = 1/5. and 4 - (-3) + 1 over 2-2 divided by (-2) = 4+3+1 over 2-2 divided by (-2)= 8/3 = 2 2/3. Is what I got ; does my answers

218. ## science

a device that uses electicity to a force to move things

219. ## Science

What causes tides?

220. ## history

why did president johnson would find it necessary to encourage congress to cooperate with him? thank you

221. ## math

what is sixtimes five?

222. ## chem

need help on chemistry below

223. ## Assistance Dogs

Please check my answer thanks :) . Which of the following is not an important job for a puppy foster family to teach? A. Socialization B. Housetraining C. Appropriate chewing D. Play bowing I think it is D

224. ## psychology

Betty's cervix is fully dilated and contractions are strong. Nurse Lee explains to Betty's husband that his wife is in the 'blank' stage. A crowning B effacing C placental D transition i believe the correct answer is D.

225. ## 205

Michael Jackson has had more plastic surgery than anybody else in California. You can bet he's had more than anybody in Connecticut!

226. ## math

i need help in some fraction problems

-2n +4-3n=

228. ## math logarithm

proof: 2/ log a base 9 - 1/ log a base 5 = 3/ log a base 3??

229. ## Basic Math

Can somebody see if I did these right? 16 divided by (-2)(-4) over 2 to the third power plus 4= 16 divied by 8 over 6 + 4= 2/ 10 = 1/5. and 4 - (-3) + 1 over 2-2 divided by (-2) = 4+3+1 over 2-2 divided by (-2)= 8/3 = 2 2/3. Is what I got ; does my answers

230. ## math

wait how do i do this one then same thing? 10 x (-2 3/11)

231. ## precal

(-8)the exponent is -1/3

thanks.

233. ## algebra 2

factor this: x^2-6=10

234. ## mathj

inverse of (x+2)^2 is it sqrt of (x) - 2

what is a adjective for things which belong to britain