# Questions Asked onJanuary 20, 2011

1. ## alg 2

simplify (x^3/4)^3

2. ## alg2

Solve: 3x − 7 (sqrt x) + 2 = 0

3. ## science

can you unscrample this word? its in french. "ratuere"

4. ## Physics

A Ferris Wheel, 24.0 m in diameter, rotates once every 12.5s. What is the fractional change in a person's apparent weight: a) at the top, and b) at the bottom? I need to know if I'm doing this right. Here's my work: Equation Used: Net Force =

5. ## Chemistry

What is the mathematical relationship between pressure and temperature?

6. ## Math

place numbers 1,2,3,4,5,6,7,8 and 9 in circles that form E so that the sum of the numbers is the same in all directions

7. ## physics

In 1954, Roger Bannister became the first human to run a mile in less than 4 minutes. Suppose that a runner on a straight track covers a distance of 1.00 mi in exactly 4.00 min. 1. What is his average speed in mi/h? 2. What is his average speed in ft/s? 3.

8. ## Social Studies

what ways to attract settlers?

9. ## physics

The "reaction time" of the average automobile driver is about 0.700 s. (The reaction time is the interval between the perception of a signal to stop and the application of the brakes.) If an automobile can slow down with an acceleration of 12.0 ft/s^{2},

10. ## chemistry

determine the value of x for the following reaction: 4C + S8-> 4CS2 3.2 mol S8 yield x mol CS2

11. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

12. ## Physics

The position of a particle is given by the function x = ( 6 t^3 - 3 t^2 + 2) m, where t is in s. (a) At what time or times is vx = 0 m/s? (Enter NONE for t2 if there is only one time.) Smaller time, t1 = Larger time, t2 = (b) What are the particle's

13. ## chemistry

Copper reacts with sulfuric acid according to the following equation: 2H3SO4 + Cu-> CuSO4 + 2H2O + SO2 How many grams of sulfur dioxide are created by this reaction if 14.2 g of copper reacts with 18 g of sulfuric acid?

14. ## physics

a stunt car driver testing the use of air bags drives a car at a constant speed of 25m/s for a total of 100 meters. he applies his brakes and accelerates uniformlu to a stop just as he reaches the wall 50 meters away. SKETCH THE A GRAPH SHOWING POSITION

15. ## calculus

g(t)=2+cos t; [0,pi] Can you help me find the average rate of change of the function over the given interval?

16. ## english .. please rely ASAP thx

1) The tone in the song of myself number 52 is best described as a. lighthearted b. bombastic c. detached d. intimate 2) Which images best appeals to the sense of hearing or sound? a. "the spotted hawk swoops by and accuses me he complains of my gab and my

17. ## Catering

Hoe are you graded on cookling projects sense you do them at home?

18. ## algebra

solve the system of equations 2r+2s = 50 and 2r-s=17

19. ## trig

cos A = -4/5 for angle A in Quadrant II, find sin 2A

20. ## trig

cos A = -4/5 for angle A in Quadrant II, find sin 2A

21. ## chemistry

a sample of freshly pressed apple juice has a pH of 3.76. Calculate [H+].

22. ## chemistry

A solution formed by dissolving an antacid tablet has a pH of 9.18. Calculate [H+].

23. ## chemistry

A. Strong Base 1.) What is the concentration of a solution of KOH for which the pH is 11.89? 2.) What is the pH of a 0.011M solution of Ca(OH)2? B. Weak Acid 1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. Calculate the Ka of the acid. 2.) The pH

24. ## math 32

the fraction 1/6 as an equivalent fraction with denominator 12x

25. ## literature ...

1) In song of myself number 33 whitman a. refuses ti help the skipper b. is repulsed by the suffering he describes c. take on the suffering of the victims d. ponders matters of life and death 2) Whe the speaker in song of myself, number 33, writes that

26. ## literature...

Can you tell me the relation between I and You in the first section of Song of Myself...

27. ## math

The length of a train 15 cars long if 1 car is 18 m long

28. ## English

Hey... Can you please give me some questions on William Shakespeare sonnet 29, 30, and 116. I tried to look for MCQ to practice some more, but i didn't find so please if you can help me i'll appriciate it thanks

29. ## chemistry

A water sample contains 102mg of CaSO4 per litre. Calculate the hardness in terms of CaCO3 equivalent.

30. ## chemistry

COMMON ION EFFECT 1.) What is the pH of a solution that is 0.30M in HCOOH and 0.52M in HCOOK. Ka of HCOOH=1.7x10^-4. 2.) Calculate the pH of a buffer system containing 1.0M CH3COOH and 1.0M CH3COONa. Ka of CH3COOH=1.8x10^-5.

31. ## chemistry

SALT HYDROLYSIS 1.) Calculate the pH of a 0.24M sodium formate (HCOONa) solution. Kb=5.9x10^-11. 2.) Calculate the pH of 0.25M pyridium chloride (C5H5NHCl)solution. Ka=5.9x10^6.

32. ## chemistry

Weak Acid 1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. Calculate the Ka of the acid. 2.) The pH of 0.100M solution of weak monoprotic acid HA is 2.85. What is the Ka of the acid?

33. ## chemistry

Weak Acid 1.) The pH of a 0.060M weak monoprotic acid HA is 3.44. Calculate the Ka of the acid. 2.) The pH of 0.100M solution of weak monoprotic acid HA is 2.85. What is the Ka of the acid?

34. ## Geometry

The sum of the interior angles of polygon is 1800. Find the number of sides in the polygon and, what do you call that polygon?

35. ## Geometry

Find the smallest interior angle of equilateral if its exterior angle are in the ratio 2:3:4:6. PLEASE HELP..I DON'T KNOW HOW TO SOLVE THIS PROBLEM..THANKS

36. ## java programming

Provide a class called Letter for authoring a simple letter. The letter class has three data fields, the name of the sender, the name of the recipient, a body of the letter. 1. Supply the class constructors (default , and overloaded ) 2. Supply a method.

37. ## ALLIED HEALTH

A mutual consent registry is relevant to obtaining medical information about A. substance abuse. B. psychological conditions that endanger the public. C. genetic information for research purposes. D. a party to an adoption. I THINK: D

38. ## chemistry

give the equation involved when 1 mole of ethane is completely burnt in air to get 2 moles of carbon dioxide and 3 moles of water

39. ## algebra

There are 51 students in a certain class. The number of females is 5 less than 3 times the number of males. find the number of females and the number of males in the class.

40. ## improper fraction

improper fractions like 4 2/3

41. ## geometry

rectangle ABCD AC=2x+2, BD= 6x-6

42. ## HISTORY

(This homework question was removed due to a copyright claim submitted by K12 Inc.) Please, you DO NOT have to write me an essay, but if you could just answer my question and maybe make a list of things for each country and what they both have in common,

asked by NEED HELP
43. ## Social Studies

I must do a model of Giza Pyramid to scale. I have the dimensions and other facts. I would like to be able to detach a side of the pyramid and show the inside location of the tunnels and chambers. But how......

44. ## Chemistry

The following reaction mechanism has been proposed for a reaction: (slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A. Write the equation for the overall reaction from the mechanism above. B.Write the rate law for the reaction

45. ## math

Determine if the relationship represented is linear. x=5,10,15,20,25,30 and y=50,60,70,80,80,90 I could not find a relationship that worked for all the numbers so I would say it is not linear. Correct?

46. ## math

find the slope of the line through the given points (8,-2) and (8,-1) when i do the math I come up with 1/0 as the slope making that infinite. Our choices for the answer are: a)0 B) 1/16 c) 3/16 d) no slope would the answer be d since the slope is

47. ## Medical Information Management

Accouding to a December 4 hospital census of 100, what are the total inpatient service days for December 5? Admissions 10 Discharges 2 A&D 1 A. 90 B. 109 C. 100 D. 110

48. ## Algebra

What is the first term of an arithmetic sequence with a common difference of 5 and a sixth term of 40 ?

49. ## English

what was the rising action(the problem present) in the story before we were free please?

50. ## English

Can you please check these sentences for me? Thank you 1) I went to a winter camp in the mountains with people from my parish. (How do you call the house owned by the parish where people can spend their summer or winter holidays? 2)The weather was bad (Or

51. ## English

What was the climax or the highest piont of interestt in the story Before We were Free if you could help I will be so greatfulp ?

log 1/2(2) ?

53. ## Math 157

I am not sure how to do this problem Convert the units. 15 yd2 = _____ ft2

54. ## physics

What are the x and y components of a velocity vector of magnitude 1.00 x 10^2 km/h and direction of 240?

55. ## AP Economics

Which economic question does the decision to produce butter instead of guns answer? 1.What to produce? 2.How to produce? 3.For whom to produce? 4.Who has a comparative advantage in gun production? 5.Who has an absolute advantage in butter production? I am

56. ## physics

the sound from a mosquito is produced when its wings vibrates at an average rate of 500 vibrations/sec.What is the tine period of the vibration?

57. ## Chemistry

Explain the following observation in terms of the collision theory, restricting each to about 25 words. NO(g) + O3(g)--> NO2(g) + O2(g) (a) An increase in temperature increases the reaction rate. (b) Compressing the gases into a smaller volume increases

58. ## math

Assuming that the square root of 2 is rational and is = to an even number divided by an odd number.2 multiplied by the odd number squared is= to the even number squared

59. ## math trig identities

a)cos4x-sin4xcot2x=-1 b)1+sinx+cosx/1+sinx-cosx=cot(x/2) i tried to ask my teacher but she doesnt know please help me!

60. ## Bio

An electromagnet can be made by wrapping insulated wire around an iron nail and connecting the ends of the wire to a 6-volt battery. HYPOTHESIS: Increasing the number of coils of wire wrapped around the nail increases the strength of the electromagnet, as

61. ## Biology

Explain the importance of carbon's ability to form covalent bonds in straight chains, branched chains, or rings.

62. ## Biology

Compare and contrast the terms aerobic process and anaerobic process.

63. ## bio

Discuss how the external environment of an organism can affect gene function.

64. ## bio

Discuss three types of fossils and how they are formed.

65. ## geometry

how can the slope formula help you remember the equation for the point-slope form of a line?

66. ## Geography

This is the least mountainous country of Southern Europe. 1) Greece 2) Italy 3) Portugal 4) Spain in my book, it says all of them are mountainous. help?

67. ## Anatomy and Physiology

Mr. Jones, angry at Dr. Bob, throws a punch at him but misses. Dr. Bob sue for battery. Why will Dr. Bob lose?

Simplify. You may use the properties to help. When you type your answer, do not space between numbers and symbols. (-5a)(3b)(2c) Would this equal -30abc?? HELP!

69. ## unit rate

what is the definishion of a unit rate

70. ## math

what number is the solution to the equation? -9(k-17)= -54 a)-26 b)23 c)28 d)37

71. ## ALGEBRA

this problem looks incorrect in my opinion not sure about it I followed the steps but it still doesn't look right. trying to find out what the x is = to 9x + 7=5 So I do 9x9=81 81+7=88 So what I did was 88-5= 83 x83?

asked by So Lost
72. ## Geology

Why are the gas planets found further from the sun that the rocky ones?

73. ## math

What number is the solution to the equation -9(k-17) =-54 a)-26 b)23 c)28 d)37

74. ## chemistry

During heating a 5 g solid gives off oxygen gas. The mass of the residue after heating is 3.5 g. What is the mass of the oxygeb ? What percent of the compoiund is oxygen?

75. ## math log

if log6=m and log 5=n, write 7.2 as an expression in m and n Answer is 2m-n Please help me!!

76. ## science

Give ten uses of air?

77. ## Math

I am working with bases. I don't understand. What, if anything, is wrong with the following numerals? A. 306four B. 1023two

78. ## health care

How does the government contribute to positive changes in health care?

79. ## FP101

List three steps in buying a home. What are some important points to consider in your purchase?

if log6=m and log 5=n, write 7.2 as an expression in m and n Answer is 2m-n Please help me!!

81. ## math formula?

Based on an average cost per year to attend a university or college of your choice, how much should be invested each month to obtain the goal of that amount (the goal is 40,000\$)? Assume 6%/a compounded monthly for 5 years. I don't need the answer, just

82. ## Calculus

Consider the function f(x) = 5x^3 +5x^2 + 7, and let c be a number in the interval [0.1] . For what values of k is there a c in this interval such that !@#\$%^&? ______≤k≤______

83. ## english

is this grammar, mechanics, and usage correct? January 16, 2011 SUBWAY: Franchisor As a potential franchisee, I am investigating Subway operations. With your experience, you can provide the kind of information I need. I have so many questions I would like

84. ## math

how to covert y=2sin(4(x-pi/8)) to cos and y=cos3x+pi Thank you for your responses!!

85. ## Russian

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86. ## Chemistry

Solution Density(g/L) Boiling Point Freezing Point 1.0m C2H5OH(aq) 1.05 100.5 -1.8 1.0m HCI(aq) 1.03 101.0 -3.7 1.0m NaCl(aq) 1.06 101.0 -3.7 2.0m NaCl(aq) 1.12 102.1 -7.4 1. Which properties in the table are colligative properties? 2. What can you

87. ## math log PLEAseee helpp pretty please!!!

determine the point of intersection y=logbase 10(x-2) and y=1-logbase 10(x+1)

88. ## physics

A rule of thumb for driving is that a separation of one car length for each 10 mi/h of speed should be maintained between moving vehicles. Assuming a constant reaction time, discuss the relevance of this rule for (a) motion with constant velocity and (b)

89. ## Calculus

A 0.3 ml dose of a drug is injected into a patient steadily for 0.35 seconds. At the end of this time, the quantity, Q, of the drug in the body starts to decay exponentially at a continuous rate of 0.4 percent per second. Using formulas, express Q as a

90. ## algebra

Choose the compound inequality that repesents the situation. all real numbers at least –6 and at most 3 –6 >x > 3 –6 >x > 3 –6 < x < 3 –6

91. ## Chemistry

The following reaction mechanism has been proposed for a reaction: (slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A. Write the equation for the overall reaction from the mechanism above. B.Write the rate law for the reaction

92. ## Chemistry

The following reaction mechanism has been proposed for a reaction: (slow) NO2 + NO2-> NO3 + NO (fast) NO3 + CO -> CO2 + NO2 A. Write the equation for the overall reaction from the mechanism above. B.Write the rate law for the reaction

93. ## math help please!!

determine the point of intersection y=logbase 10(x-2) and y=1-logbase 10(x+1)

94. ## physics help

The magnitude of the velocity of a particle which starts from rest 2 ft below the origin when t = 0 and moves along a vertical axis is directly proportional to the time after starting. The displacement of the particle during the time interval from t = 1

95. ## Biology

OK, I give up. No where do I find a clear yes or no to this question. Fossil evidence indicates that humans have not undergone many anatomical changes over the last 200,000 years. From what I have read it seems like they have. Am I correct?

96. ## math

Write a fraction equal to 1 that has a denominator of 7.

97. ## chemistry

Consider a 50 L tank which hold 20 g of hydrogen gas, 20 g of carbon dioxide gas, and 20 g of krypton gas, at a total pressure of 600 KPa. 1. which gas has the largest partial pressure? 2. Which gas the smallest average speed? 3. What is the temperature of

98. ## Chemistry

How much energy does 3.52 * 10^-7m of light have?

99. ## physics help

The magnitude of the velocity of a particle which starts from rest 2 ft below the origin when t = 0 and moves along a vertical axis is directly proportional to the time after starting. The displacement of the particle during the time interval from t = 1

100. ## Math/Trig

Find the area of triangleABC with B=47.6degrees, a=3.6, and c= 9.7. Round your answer to the nearest tenth.

101. ## Math/Trig

Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth.

102. ## Math/Trig

Solve: 2 cos2 x - 3 cos x + 1 = 0 for 0 is less than or equal to x is less than 2pi.

103. ## precalculus

The acceleration acting on a falling object due to gravity varies inversely with the square of the object's distance from the center of Earth. At the surface of Earth, where x = 1 Earth radius, the acceleration is y = 9.8 m/s2 1. Use the multiply-multiply

104. ## Trig

Verify the identity: tanx/secx-1=secx+1/tanx

105. ## Western Culture

western company besides Wal Mart that has impose western culture on the country in which the business is launched

106. ## Trig

Verify that 7pi/6 is a solution to 2sin2x–sinx=1.

107. ## Trig

Verify:cos(360degrees-x)=cos x

108. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

109. ## chemistry

Copper reacts with sulfuric acid according to the following equation: 2H3SO4 + Cu-> CuSO4 + 2H2O + SO2 How many grams of sulfur dioxide are created by this reaction if 14.2 g of copper reacts with 18 g of sulfuric acid?

110. ## Math/Trig

Solve: 2 sin x - 1 = 0 for 0 degrees is less than or equal to x is less than 360 degrees.

111. ## american history (civil war)

what was the trent affair and how was it settled?

-6/8 - 6/8 =

113. ## Math/Trig

Solve: sin2 x = cos2 x for 0 degrees is less than or equal to x is less than 360 degrees.

114. ## Math/Trig

Solve: sin x - 2sin x cos x = 0 for 0 is less than or equal to x is less than 2pi.

115. ## ETH 125

2. Final Project: Diversity and Your Community • Resources: Appendix A. • Write a 1,400- to 1,750-word autobiographical research paper that analyzes the influences of diversity as it relates to your community. In your paper, write your first-person

116. ## fractions

the sum of two fractions is 7/12. therre difference is 1/12. they have the same denominators. what are the two fractions?

117. ## Trig

Solve: cos2x(2cosx+1) for 0degrees is less than or equal to x is equal to or less than 360degrees

118. ## MATH

what is the general term of the following series? 60/121-30/11+15-...+219 615/ 16

119. ## Trig

Hi everyone, I have a WS due tomorrow, and would really appreciate some help. You are taking a ride on a Ferris wheel that is 100 feet in diameter and has a bottom point that is 10 feet above the ground. Suppose that the wheel rotates four times every

120. ## MATH

Which of the following sums is larger and by how much? (n=1) Y1 = 7 over Σ 15/4(pi/10)^n Y2= 11 over Σ 17/4(4/13)^n

121. ## statistics

The size of a car \\\\\9small,med, and lar) are measured on a)ratio b) interval c) ordinal D nominal scale. Why

122. ## MATH

determine the sum of: 50 over Σ 8(.5)^n-2 n=1

123. ## statistics

What scale of measurement is used when the data is divided into ranges and in which the distance bet.ween the intervals is meaningful

124. ## Literary Analysis and Composition

could you please help with these questions? In works like "To Build a Fire," Naturalist writers such as Jack London advocated (Points : 5) trusting entirely in the wisdom and ingenuity of human beings. respect for the power and wildness of the natural

125. ## Trig

Solve:cos^2x=1 for 0 < x is less than or equal to 2pi

126. ## Trig

Find the exact value of sin75degrees+ sin15degrees.

127. ## math

This year Ben is 4/7 as old as Glen. Fifteen years from now, Ben will be ¾ as old as Glen. At that time, the sum of their ages will be 63. How old are Ben and Glen now?

128. ## math

i am an odd number with digits 4, 5, & 6 i am more than 550 and less than 650 what number am i

17/18+5/18=

130. ## algebra

solve the system of equations using substitution. y = 4x + 2 y = 3x + 6 a. (4, 18) b. (–4, –14) c. (–14, –4) d. (–4, –6)

131. ## algebra

solve the system of equations using substitution. y = 3x – 4 y = 2x – 1 (1 point) a. (–2, –9) b. (1, –1) c. (1, 1) d. (3, 5)

132. ## Linear Programming

Tab 1: Linear Program: 50 points Consider the Linear Program: Max 2A + 3B s.t. 1A + 2B

133. ## algebra

solve the system of equations using substitution. y = x + 10 y = 3x a. (5, 15) b. (2.5, 7.5) c. (–15, –5) d. (–5, –15)

134. ## algebra

solve the system of equations using substitution. y = 2x + 5 y = 3x a. (–5, –15) b. (5, 15) c. (–15, –5) d. (1, 3)

135. ## algebra

The length of a rectangle is 6 cm more than four times the width. If the perimeter of the rectangle is 42 cm, what are its dimensions? a. length = 18 cm; width = 3 cm b. length = 18 cm; width = 9 cm c. length = 6 cm; width = 9 cm d. length = 3 cm; width =

136. ## Chemistry

Does anyone know where I can get an image of the valence bond model for maleic acid? ie. showing the pi and sigma bonds and indicating the hybridization (sp2, sp3.. ) OR could someone describe these things to me? I'm just trying to check my work and make

137. ## MATH HELP ME NOW PLEASE!!

DETERMINE THE SUM OF THE FOLLOWING GEOMETRIC SERIES A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1 HELP PLEASE!!!!!!

138. ## geometry

Find JL if JK=17-x, KL=2x-7, and K is the midpoint of JL

139. ## english

What are some effects of materialsim in American life?

140. ## Math

Rewrite the expression so that it is not in functional form: (sin x)/(csc x-1)

141. ## Physics

If B is added to C = 6.5i + 4.6j, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of C. What is the magnitude of B?

142. ## Chemistry II

Calculate the energy pulled from 500 grams of Water at 20.0 degrees Celsius to Ice at 0.0 degrees Celsius. What happens to the energy? How much Freon-11 must circulate through the freezer in order to freeze the 500 gram sample of Water?

143. ## economics

Where would ypu expect the least amount of trade?

144. ## physics

If a 0.18 kg baseball has a momentum of p = 9.4 kg·m/s as it is thrown from home to second base, what is its velocity? m/s toward second base

145. ## physics

for starting from rest and moving in a straight line,runner achieves a velocity of 7m/s in a time of 2 seconds .what is the average acceleration of the runer.

146. ## Analytical Geometry

Simplify: (Sin^2x)/(Sec^2x-1)

147. ## Math 213

Please....! There are two questions here. What, if anything, is wrong with the following numerals? A. 306four B. 1023two

148. ## MATH I NEED HELP PLEASE!

DETERMINE THE SUM OF THE FOLLOWING GEOMETRIC SERIES A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1

149. ## math

Write the answer to the problem as an algebraic expression. The product of two numbers is 30. One of the numbers is r. What is the other number? Our choices are: a) r/30 b) 30/r c) 30-r d) 30r I believe the answer is b but am thinking it may be c, any

150. ## Science

MOMENTS A uniform rod 8m long weighing 5kg is supported horizontally by 2 vertical parallel strings @ p & Q and @ distances of 2m and 6m from one end.Weights of 1kg,1.5kg and 2kg are attached at distances of 1m, 5m and 7m respectively from the same end.

asked by Onuchukwu Victor
151. ## ststistics

each tire of an 18 wheeler has a probability of 5% TO maintain on a 10000 mile trip. WhAt is the probability that no more than 3 tires need maintenance during this trip. How do i do this?

152. ## math i need help please

determine sums of following geometric sequences... A. -1/32+1/16-...+256 B. 50 over Σ 8(.5)^n-2 where n=1

153. ## math

how does a line graph make it easy to see changes over time?

154. ## physics

A tennis player places a 54 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally with a velocity of 38 m/s toward the north. What is the final velocity of the machine? m/s to the south

155. ## history

when was martin king jr born?

156. ## LEARNING SKILLS

What is the fastest option available for submitting your examinations? A. By Exam Express B. By Tel-Test C. Online at the Penn Foster Web site D. As an e-mail attachment

157. ## economics

The Acme Machinery Company is a closed shop. This means that: A.union members are not employed. B.only union members are employed. C. both union and nonunion members are employed D. the company boycotts union-made products. E.

158. ## physics

What mass of steam initially at 125 degree celcius is needed to warm 250g of water in 100g beaker from 22 degrees celcius to 50 degrees celcius?

159. ## find a pattern

2 6 4 12 10 30 28 if the pattern continues, what is the next number likely to be?

160. ## LEARNING SKILLS

What is the main value of knowing the general meaning of a word's prefix or suffix? A. You can sort out adjectives from adverbs. B. You can tell if the word is a verb or a noun. C. You get clues as to a word's meaning. D. You will be better able to spell

161. ## algebra

whats the lcd of 8/9x+2/3x=1/9x+45

162. ## math

a real motorcycle is 18 times as large as a model motorcycle that is 5 1/16 in. long so how long is the real motorcycle

163. ## geometry

rectangle ABCD is similar to rectangle wxyz , with AB corresponding to wx. if AB=24,BC=30 and wx=16 , what is the area of the rectangle wxyz

164. ## algebra

Given a right triangle whose side lengths are integral multiples of 7, how many units are in the smallest possible perimeter

165. ## math

after school chase spends 20 min reading 30 min practicing the piano 15 min cleaning his room, and 40 min doing his homework, chase is busy for 105 min what fraction of the time does he spend cleaning his room?

166. ## economics

which of these is most likely favored by both management of labor? a. an increase in wages b.cutbacks in health coverage due to rising health care costs c. establishment of a profit sharing plan d. guarantees against layoffs e. new work rules to increase

167. ## math formula?

Mary would like to save \$10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the end of each week in a savings account that pays 12%/a, compounded monthly, to meet her goal? d. Determine the weekly deposit

168. ## ss

the americans claimed to fight for liberty and freedom. how did these ideals make women amd enslaved africans question their postitions in society

169. ## Chemistry

12.00 g of sugar is dissolved in some water in a cylinder of diameter 7.00 cm. To what height should the cylinder be filled (with more water) to produce a solution with concentration 11.00 g/dm^3?

170. ## math

if a triangle has side lengths of 6cm, 9cm and x cm, what are possible values for x?

171. ## MATH

rectangle ABCD is similar to rectangle wxyz , with AB corresponding to wx. if AB=24,BC=30 and wx=16 , what is the area of the rectangle wxyz

asked by NEED HELPPPPPPPPPPPPPPPP
172. ## Physics

In a television tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.0 105 N/C during the first 5.0 cm of the tube's length; then they move at essentially constant velocity another 45 cm before hitting the screen.

173. ## Chemistry

Hi I hope you can understand this...the Na ion is attached to the oxygen using ionic bonding. The \/ are meant to symbolize the hydrocarbon chain. The || is a double bond that bonds oxgen to carbon. O || Na O/\/\/\/\/\/ + CaCl2 -> ? + NaCl To give you some

174. ## chem

For each of the following sets of atoms and ions, arrange the members in order of increasing size. Mg2+ F- and Na+

175. ## Government

if a proposed amendment violates the constitution, should the supreme court be able to block it's ratification? Explain.

176. ## chemistry

Write electron configurations for the following ions, and determine which have noble-gas configurations. (Type your answer using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.) Ru2+ thanks

177. ## chemistry

AT 40 DEGREES HOW MUCH POTASSIUM CHLORIDE CAN BE DISSOLVED IN 300G OF WATER

178. ## math

write the 100-complement of 40

179. ## science

what functions do the lysosomes in an animal cell perform?

180. ## math

6. A lottery offers two options for the prize. Option A: \$1000 a week for life Option B: \$ 600 000 in one lump sum. The current expected rate of return for large investment is 7%/a, compounded weekly. a. Which option would the winner choose if s/he expects

181. ## math

Page 114 of pizzazz math has got me clueless. None of the problems make since and my homewrok is due tomorrow. Please help me!!!!

182. ## Math

A university is doing a study to record the growth of mosquitos. There is originally 25 mosquitoes. The growth of the mosquitos is 0.03% every 7 days. How many days until there are 20 435 mosquitos? What I did was use the growth formula A=25(1+0.03)^t to

183. ## Physics

If a - b = 2.4c, a + b = 5.8c, and c = 1.3i + 4.9j, then what are (a) the x component of a, (b) the y component of a, (c) the x component of b, and (d) the y component of b? a, b, and c are vectors

184. ## Physics

A coach with a mass of 100 kg is placed on an adjustable ramp attached to a truck. As one end raises, the couch begins to move downward. If it sldes with an acceleration of .79 m/s^2 at 12 degrees, what is the coefficient of kinetic friction. I think I

185. ## Chemistry

I'm working on chemistry homework, and I just came across a few issues I don't understand. For one, why isn't Sodium Bromide NaBr2 (Online sources show it as NaBr)? Isn't Bromine a diatomic element?

186. ## 4th grade

reena says the product of 54 and 9 cannot be 487. she says that she knows this without actually multiplying. how does she know?

187. ## Algebra

this is wierd to write but ill do my best. 12 4 square root 2 (the 4 is on top of the radical if that helps) - 7 4 square root 312 (again the 4 is on top of the radical) if this is confusing ill try to break it down more. thank you

188. ## 4th grade

without multiplying, how do you know that the product of 399 and 48 is smaller than 20,722?

189. ## Structural Design, Part 2

The structural technique that includes long vertical studs running from the sill plate to the second floor roof frame is called Frame

190. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

191. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

192. ## math

how do you find the square root of 49x^5?

193. ## math

The sum of the squares of three consecutive integers is 194. what are the integers?

194. ## chemistry

Copper reacts with sulfuric acid according to the following equation: 2H3SO4 + Cu-> CuSO4 + 2H2O + SO2 How many grams of sulfur dioxide are created by this reaction if 14.2 g of copper reacts with 18 g of sulfuric acid?

195. ## algebra

y=-2x+5 2y+4x=10 solve the system ?

196. ## English

Can you please check these sentences for me, please? Thank you. 1)When you go to the supermarket, you insert a 50-cent coin into the trolley and you get in (how can I express this) 2)You put the things you need in the trolley. 3)I usually go to the counter

197. ## math

5 third root 48 - third root 750

198. ## Physics

Someone attaches a 27 kg bale of hay to one end of a rope passing over a frictionless pulley connected to a beam in a hay barn. Someone else pull down on the opposite en of the rope with a force of 397 N. Ignoring the mass of the rope, what will be the

199. ## physics

A couch with a mass of 100 kg is placed on an adjustable ramp attached to a truck. As one end raises, the couch begins to move downward. If it sldes with an acceleration of .79 m/s^2 at 12 degrees, what is the coefficient of kinetic friction. I still am

200. ## trig

True or false? If A and B are angles of a triangle such that A > B, then cos A > cos B.

201. ## Science

What amount of Magnesium Metal is needed to produce 1500.0 L og hydrogen gas?

202. ## science (physics)

thank you for your help! my question is :how do you find the magnitude of the electric field that will balance the weight of an electron?

asked by APPRECIATIVE STUDENT
203. ## Chemistry

How much energy in joules does it require to melt 10.00 moles of ice

204. ## AiMS MATH

-5 Is A Member Of Which Subset Of Real Numbers. a) natural numbers b) whole numbers c) intergers d) rational numbers e) irrational numbers

205. ## trig/precalc

a plane flies 810 miles form Franklin to Centerville with a bearing of 75 degrees (clockwise from north). then it flies 648 miles from centerville to rosemont with a bearing of 32 degrees. find the straight-line distance and bearing from rosemont to

206. ## American Gov.

why is compromise importamt to solving problems in a democracy?

asked by Angel .G.
207. ## wrting

describe the difference between college level writing and casual writing

208. ## math

How can you use 4s facts to find 7 x 8? give the product in your explanation.. thanks.

209. ## math

simplify the expression. assume all variables are positive. third root x/y^2

210. ## Computers (Databases)

Hi, I just need some to transcribe my ERDs to Visio.

211. ## Math

Are parenthesese necessary in the expression 2+(3 x 5)? Are parenthesese necessary in the expression (2+3)x5? can you explain?

212. ## science

What is the definition of "Organ System"?

213. ## Math 1 9th grade

A bag contains 3 green marbles and 6 blue marbles. What is the probability of drawing a blue marble, then another blue marble, then a green marble, replacing the marble after each draw?

214. ## Earth Science

Using the plate tectonic theory explain the differences between the continental shelves on the east and west coasts of South America.

215. ## mathematics

simplify the expression. 2/x^-3/2

216. ## science(physics)

hi -- thank you for your help before-- that makes sense-- also, im stuck on this: if there is a negative2.5 microcoulomb charge 1 m away from a 6microcoulomb charge, then at what point (other than infinity) is the electric field = zero? Sorry, i have no

asked by APPRECIATIVE STUDENT
217. ## earth science

How are trenches related to plate boundaries? How are trenches explained by the theory of plate tectonics?

218. ## Trig. Math

The mean score on a normally distributed exam is 42 with a standard deviation of 12.1. Which socre would be expected to occur less than 5% of the time? 1) 25 2) 32 3) 60 4) 67 -I know the answer is 67, but i don't know why .. PLEASE help!

219. ## math

i need to draw a graph using this equation 8x x 4= they don't say what x equals

(y^4)^1/6

221. ## ?

u guys skip the ones you don't know or you just don't want to help? just askin

222. ## honors English

In "The Cross of Snow," the images of a halo, fire, and sunlight contrast with the- (which one??) A- image of a snowy, sun-capped mountain B- face of the speaker's dead wife C- image of a sunless mountain ravine D- memory of a happy marriage

223. ## math

If someone's height is six feet and is enlarged to 16.8 inches, what is the scale factor?

224. ## physics

A tennis player places a 54 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally with a velocity of 38 m/s toward the north. What is the final velocity of the machine? m/s to the south

225. ## chemistry

what quantity of heat is required to vaporize 141 g of benzene at its boiling point 80.1 degrees celcius? heat of vaporization is 30.8 degrees celcius.

226. ## human resources

What do you think are the prime advantages and disadvantages of Nike’s computer-based interviewing system?

227. ## chemistry

which pair of atom will combine chemically to give an ionic compound? a)H and U b)O and S C)F and CA d)NA and CL

228. ## AiMS MATH

i cant remember how to find the value of the squareroot of

229. ## AiMS MATH

i cant remember how to find the value of the squareroot of 484. can anyone give me some steps or something.

230. ## chemistry

Which molecule is most likely to contain only single covalent bond? a)co2 b)HCN c)CH4 d)H2ccH2

231. ## science

Will you please check my answers? How are oceanic and continental crust alike? How do they differ? They are alike because both are part of the crust and, or lithosphere. They both slip past, diverge, and converge with each other. They are different because

232. ## science

Classify these layers of the Earth as liquid, solid, or solid but able to flow slowly: crust, lithosphere, asthenosphere, outer core, inner core. Crust=solid, Lithosphere= solid but able to flow slowly, Asthenosphere=liquid, Outer core= solid but able to

233. ## math

the formula P= 2L+2W can be used to calculate the perimeter of a rectangle. A regtangular swimming pool has a length of 50 meters and a width of 25 meters. What is the perimeter of the swimming pool

234. ## Language

Compound words are two words that have been joined together to create a new word. The new word is related to both the smaller words. a) back/fore/under +_______ b) bank/cook/text + _______ c) blue/goose/straw + ______ d) day/flash/high + _________ e)

235. ## human resouces

Examination of the effect of legal, safety, and regulatory requirements on human resource process

236. ## physics

You're at a Red Rocks concert on a cold January evening. The temperature is -8 degrees Celsius and you've got amazing front row tickets, the players are only 5.5 m away. How long does it take for sound to arrive to you from the stage? Calculate your answer

237. ## chemistry

if 3.5 moles of HCl are used how many moles of AlCl(sub3) are produced

238. ## help math ahhhh

For questions 9–10, solve each system by elimination. 9. 5x + 4y = 1 3x – 4y = 7 (1 point) (–1, –1) (1, –1) (1, 1) 10. x + 2y = 5 3x + y = 10 (1 point) (3, –1) (1, 3) (3, 1)

239. ## physics

Is the equation 344+0.6x(t-20)? I'm not getting this at all? How long does it take for sound to arrive at the back of a big auditorium if the temperature is 33 oC and the stage is 29 m away? answer in seconds

240. ## General Chemistry II

A quantity of ice at 0 degrees celcius is added to 64.3 grams of water in a glass at 55 degrees celcius. After the ice melted, the temperature of the water in the glass was 15 degrees celcius. How much ice was added? The heat of fusion of water is

241. ## physiscs

A spherical balloon has an area of 7.1076 m2.How to you calculate the volume?

242. ## science

This is for a bonus if we want to answer it. Can you see if it is correct? State in one sentence the most significant discovery that geologists established through their study of plate tectonics. Here goes- The most significant discovery is that the

243. ## chemistry

while hiking near the mouth of the river, malcolm finds a fine grained that break into flat pieces. This an example of what type of rock? a)magna b)igneous c)matamorphic d)sedimentary

244. ## physics

Imagine for a moment that treble sounds could travel at 400 m/s, but bass sounds at only 200 m/s. If sound behaved that way, and you were listening to the CU band in Folsom stadium from a distance of 110 m, how much delay would you hear between the trumpet

245. ## visual arts

what are the different types of shapes and forms? ASAP EXAM TOMORROW

246. ## physics

A steel ball is dropped from a diving platform (with an initial velocity of zero). Use the approximate value of g = 10 m/s2. (a) Through what distance does the ball fall in the first 1.5 seconds of its flight? (b) How far does it fall in the first 4

247. ## physics

a 5.1 kg bucket water is raised from a well by a rope. the acceleration of gravity is 9.81 m/s^2. if the upward acceleration of the bucket is 4.5m/s^2, find the force exerted by the rope on the bucket of water.

248. ## chemistry

Calculate the molarity and mole fraction of acetone in a 1.29 m solution of acetone (CH3COCH3) in ethanol (C2H5OH). (Density of acetone = 0.788 g/cm3; density of ethanol = 0.789 g/cm3.) Assume that the volumes of acetone and ethanol add.

249. ## science(physics)

Thank you very much for your help--I'm having trouble with this problem: what do i do? There are three point charges along the x axis: -4nC(0.5m left of y axis) 5nC(at origin) 3nC(0.8 right of y axis) I have to say what the electric field is at the point

asked by APPRECIATIVE STUDENT
250. ## math

how do you add a negetive and a positive faction? -5/8 + 2/9 = ?

251. ## science

I posted a new question at 8:22 p.m. I was wondering if someone could check my answer! Thanks in advance

252. ## IT/244 - INTRO TO IT SECURITY

What are the similarities and differences in the principles of least privilege and separation of duties?

253. ## algebra

Find the equation of the line that has slope 2 and contains the point (1, 10)

254. ## math

Donna drove half the distance of a trip at 40 mi/h. At what speed would she have to drive for the rest of the distance so that the average speed for the entire trip would be 45 mi/h?

asked by Anna Leigh
255. ## chemistry

what mass of steam intially at 130 degree celcius is needed to warm 200 grams of water in a 100 gram container from 20 to 50 degree celcius

256. ## Chemistry - Unit Analysis

The molar mass of cupric chloride is 134.45g/mol. What is the mass, in grams, of 8.19*10^-3 mol of this compound?

257. ## Writting

I need to write a 5-graph paragraph about either 1. A time I was dissapointed or 2. A situation that is negative but turns out positive. it doesn't have to be something that really happened in your own life. I can't think anything though so I was wondering

258. ## algebra

Find the equation of the line that has slope 2 and contains the point (1, 10)

259. ## algebra

Find the equation of the line that has slope -3 and contains the point (4, -5)

260. ## pre algebra

How do you solve linear equations like -4x-5y-5 and or -5y-25=-x

261. ## chem

Write electron configurations for the following ions, and determine which have noble-gas configurations Tl+ As3- I -

262. ## social studies

describe the kinds of conflicts that developed as europeans settled the americas. Anaylze the effects of these developing conflicts

263. ## science

What can a electromagnet do that can't be done with a regular magnet?

264. ## math

when a child flying a kite has let out 50 m of string the string makes an angle of 55 degrees with the ground. how high is the kite

265. ## MATH

SOLVE BY ELIMINATION METHOD 7r-8s+-20 8r+7s+74

266. ## Pre-algebra

Transform the formula. The area of a triangle A can be found with the formula A=1/2bh where b is the length of the base of the triangle and h is the height of the triangle. Solve the formula for h.

267. ## AP Physics

A ball of mass 0.1 kg is attached to a rubber band, which we can model as a spring of stiffness 8 N/m. With one end of the rubber band fixed, you throw the ball vertically upward with an initial speed of 14 m/s. At the moment the ball leaves your hand, the

268. ## english

1) The tone in the song of myself number 52 is best described as a. lighthearted b. bombastic c. detached d. intimate 2) Which images best appeals to the sense of hearing or sound? a. "the spotted hawk swoops by and accuses me he complains of my gab and my

269. ## world history

how were the mongols able to rise to power

270. ## math

i am an even number that has more ones than tens. My thousands digit is the quotient of 9 divided by 3 and my tens digit is the sum of 3 and 3. i have no hundreds. what number am I>

271. ## Language

What happens when - ing is added to the verb? Thank you!

asked by Lisa 100
272. ## PHYSICS

Can someone please explain friction. i don't even understand the concepts parts!

273. ## Algebra

on three consecutive passes a football team gains 5 yards and loses 26 yards and then gains 33 yards. What numbr represents the total net yardage? Is the answer 15

274. ## math

walking down a long moving escalator, phil covered the 75 m distance in 25 s. walking back up against the motion of the escalator, the same distance was covered in 75 s. what is the speed of the escalator?

275. ## chemistry

Vanadium crystalizes in a body centered cubic lattice (the V atoms occupy only the lattice points) how many V atoms are present in a unit cell?

276. ## Algebra

SOLVE BY ELIMINATION METHOD 7r-8s+-20 8r+7s+74

277. ## Chemistry

a gas has a volume of 1.75 L at -23 degrees Celsius and 150 kPa at what temperature will the gas occupy 1.30 L at 210 kPa

278. ## physics

HELP!You are handed a 8.0 cm stack of new one-dollar bills. Assume the thickness of a dollar bill is 1.4 times thicker than your textbook paper (textbook paper = 63 um). (that's "micrometers") How many dollars are in your stack?

279. ## hellppp meee

describe the kinds of conflicts that developed as europeans settled the americas. Anaylze the effects of these developing conflicts

280. ## Chemistry

Find the pH of a solution prepared by taking a 50.0 mL aliquot of a solution prepared by dissolving 12.25g of NaOH and 250.0 mL of water and diluting that aliquot to 1.00L?

281. ## Help

I have tried to solve this problem several time sto get the answer and I am lost. Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hr abd train B is traveling at 90 miles per hr. Train A passes a

282. ## algebra

A basket contains 11 pieces of fruit: 4 apples, 5 oranges, and 2 bananas. Jonas takes a piece of fruit at random from the basket, and then Beth takes a piece at random. What is the probability that Jonas will get an orange and Beth will get an apple?

283. ## algebra

You have 24 feet of fence to make a rectangular garden.Each side will measurw a whole number of feet.How many different sized rectangular gardens can you make?

-6m+3/11=7

285. ## math

The area of the figure is at least 400 square meters. Write and solve a two-step inequality to represent the possible values of x. Use 3.14 for 𝛑.

286. ## literature.. poetry.. plz give me corrections ASAP

1) Walt Whitman's writing style can be best described as a. bold and confident b. folsky and charming c. elegant and refined d. elevated and sublime 2)unlike whitman, emily dickinson was a. a world traveler b. private and shy c. people-oriented d. involved

287. ## physics

A students on a balcony uses a slingshot to shoots rock straight up at 29.4 m/s. If the rock takes 8.0 s seconds to hit the ground below the balcony, how high is the balcony above the ground?

288. ## physics

To determine the density of block of aluminum, you measured the mass at 101.1 g and a volume of 38.2 cm3 . When you looked up the value for aluminum density you found out it should be 2700 kg/m3 What is the percent error for your experimental data? a)

289. ## social studies

Why do you thnk the distance between europe and the u.s affected american attitudes toward the war?

290. ## physics

A man standing 15.0 ft away from a light pole which is an additional 85.0 ft from a building tries to estimate the height of the building which he has lined up with the top the light-pole. Since he knows that the light-pole is 20.0 ft tall and his line of

291. ## physics

can some one explain this Assuming a gram of gold costs approximately \$36, how many cubic centimeters of gold can you buy with a twenty dollar bill if the density of gold is 19320 kg / m3 ? a) 0.029 cm3 b) 2.9 x 10-6 cm3 c) 0.56 cm3 d) 0.04 cm3

292. ## physics

If a car is travelling at 60. miles per hour and the brakes are applied so that it accelerates at -15.0 ft/s2, how many feet will it take to stop? i realize i am posting a lot of questions, but i don't understand them!

293. ## Physics

A car is approach a corner too fast and locks up the brakes at point A and holds them on for 12.5 M to point B. The car then moves from point B at a constant speed and does into the corner. At Point C because the car is still going to fast it goes out of

294. ## geomitry

the first angle of a triangle is complementry to the third angle. the second angle is 16 degrees less than five times the first angle. find the measure of the largest angle of the triangle.

295. ## Communicating Skills

Explain what a "word" picture is? Please help me.I haven't any time

296. ## physics

A box with a mass of 40.0 kg is pulled along a level floor at a constant speed by a rope that makes an angle of 20.0o with the floor as shown below. If the force on the rope is 200 N, then coefficient of sliding friction or ) between the box and the floor

297. ## Algebra -- Help

Train A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hr abd train B is traveling at 90 miles per hr. Train A passes a station at 3:25am,if train B passes the same station at 3:37am, at what time will

298. ## EASY QUESTION

What is the change in kinetic energy of a baseball thrown at 90 mph compared to one thrown at 45 mph? it is four times as much right?

299. ## language arts

what is the prepositional phrase of this? That coral reef may have been growing for a thousand years.

300. ## PHYSICS

A small mouse is dropped by a hawk who is ascending straight up at constant rate of 1.0 m/s. Neglecting air friction, after 2.0 seconds, what is the velocity of the mouse?

301. ## PHYSICS

A bucket is swung on a rope in a vertical circle as shown in the diagram below. The bucket has a mass of 1.5 kg, the radius of circular motion is 1.2 m, and it is being spun at a rate of 45 revolutions per min (RPM) what is the tension of the rope at

302. ## Organic Chemistry

I realize this is a general chemistry stoichiometry question, however I can not fully grasp it. I am supposed to calculate the theoretical amount (volume) of 3M sodium hydroxide (NaOH) needed to convert 1.5g of benzoic acid to its salt. I got 0.012 moles

303. ## grammar

in the sentence-she told us about the different kinds of insects. is told a past or present verb?

304. ## ENGLISH

WHY DO AUTHORS USE COMPLEX SENTENCES THEIR WRITING. How DOES THEY help emphasize and explain the author’s point?

305. ## language arts

Find the prepositional phrase and is it used as an adjective or adverb? Coral near the water's surface is beautiful but very fragile.

306. ## physicis

What is dry ice behavior when acted on by a steady push that keeps up with the block and when it is a given a quick shove.

307. ## physics

calculate the free electrons of a copper wire having a 0.064 inches diameter and 1000 ft. long?

308. ## physicis

suppose the dry ice block is moving to begin with and we exert a steady force,either speeding up or slowing down.how does the block behave? now suppose we make the steady force smaller and smaller.how does the dryice block behave? how will it behave when

309. ## physicis

what action on our part is neccesary to make the dryiceblock move faster and faster,that is accelerate continuosly?if you are speeding it up, how must you move?

310. ## Communications

What artists and bands have had the greatest effect on popular culture? Explain why? Do you think the changing genre of popular music influences culture of time? If so, explain how? If not, explain why not? (Last 30 years)

311. ## LEARNING SKILLS

Suppose you've already registered in the Penn Foster Web site. What information must you provide to enter the site again and access information? A. Student ID and password B. Login ID and zip code C. Login ID and password D. Student ID and zip code

312. ## chemistry

A catalytic converter combines 2.55 g CO with excess O2.What mass of CO2 forms?

313. ## trig

If sin 2 theta = (2/5) in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta.

314. ## 5th grade

what is the mode for the following numbers? 900,700,500,600,600,300,600,200,100,300,200. please! show me how to do this problem? than you!

315. ## Math-Statistics

I. Use Chebyshev’s theorem to find what percent of the values will fall between 156 and 276 for a data set with a mean of 216 and standard deviation of 12. II. Use the Empirical Rule to find what two values 68% of the data will fall between for a data

316. ## pre algebra

a girl lets out 50 yards of kite string while flying a kite. The distance from a point on the ground directly under the kite to where she is standing is 30 yards. if the girl holds the string 3 feet from the ground how high is the kite? assume the string

317. ## math (trig)

if cos 2 theta = -(1/3) and theta is in Quadrant 2, find sin theta, cos theta, tan theta, and draw triangle theta

318. ## 5th grade

just one more problem i'm still struggle with . Find the median and mean for each set of numbers. 17,13,27,33,25. please! give me an example again. thank you!!