# Questions Asked onApril 4, 2011

1. ## algebra 2

the loudness L of a sound in decibels is given L=10log10R, where R is the sound's relative intensity. if the intensity of a certain sound is tripled, by how many decibels does the sound increase? due tomorrow, tuesday, april 5th, 2011. help pleaseeeee ;)

asked by math challenged
2. ## chemistry

Consider the equation A(aq) + 2B(aq) 3C(aq) + 2D(aq). In one experiment, 45.0 mL of 0.050 M A is mixed with 25.0 mL 0.100 M B. At equilibrium the concentration of C is 0.0410 M. Calculate K. a) 7.3 b) 0.34 c) 0.040 d) 0.14 e) none of these the answer for

3. ## Physics 203 ( College)

Four particles, one at each of the four corners of a square with 2.5-m-long edges, are connected by mass less rods. The masses of the particles are m1 = m3 = 2.0 kg and m2 = m4 = 7.0 kg. Find the moment of inertia of the system about the z axis.

4. ## math !!!! :O

The ratio of the number of postcards john had to the number of postcards Zachary ha d was 4:9. Zachary had 45 more postcards than John. After giving some postcards to John, Zachary had 6/7 as many postcards as John. (A) How many postcards did Zachary have

5. ## algebra

brad wants to buy flowers for his friend with \$21. The daises are \$2 each and the roses are \$3 dollars each.He buys 3 more daisies then roses. how much did the roses cost?

6. ## math

If the radius of this cylinder is doubled, its volume will be twice as much four times as much eight times as much is it four times as much?

7. ## math

mike wants to make a meatloaf his recipe uses a total of 8 pounds of meat. if he uses a 3 to 1 ratio of beef to pork how much pork will he use?

8. ## Describe how you would make 250 mL of 0.500 M HCI

Describe how you would make 250 mL of 0.500 M HCI from 12.1 M HCI. Show calculations.

9. ## Chemistry

HC2H3O2 + NaOH --> NaC2H3O2 + H2O? a. when the titration is only half over, what species are present in the reaction flask b. what can be said about the pH at this point when the titration is half over? c. what is the pH at the equivalence point of this

10. ## algebra

What is th remainder when the sum of the first 102 counting numbers is divided by 5220?

11. ## Math

Postal regulations specify that a package sent by priority mail may have a combined length and girth of no more than 129 in. Find the dimensions of a cylindrical package with the greatest volume that may be sent by priority mail. Hint: The length plus the

12. ## Geometry

The wheel of an adult's bicycle has diameter 26 in. The wheel of a child's bicycle has diameter 18 in. To the nearest inch, how much farther does the larger bicycle wheel travel in one revolution than the smaller bicycle wheel?

13. ## calculus

In a certain region, the number of bushels of corn per acre, B, is given by the function B(n)=-0.1n^2 + 10n, where n represents the number of seeds, in thousands, planted per acre. If corn sells for \$3/bushel and cost \$2 for 1000 seeds, find the optimal

14. ## Calculus

If an open box has a square base and a volume of 106 in.3 and is constructed from a tin sheet, find the dimensions of the box, assuming a minimum amount of material is used in its construction. (Round your answers to two decimal places.) height in length

15. ## geometry

The area of a circle is 28.26 square centimeters. What is its diameter (use 3.14 for ð)?

16. ## Chemistry

Given the reaction A(g) + B(g) 2AB(g) 1. What does equilibrium mean? -equal mols or pressure between reactants and products? Is there more reactants or products? 2. Will the equilibrium be the same if i started with the reactants only vs if i started with

17. ## math

i am a relflex angle. all the digits in my angle measure are even. all of my digits are different. all three of my digits are factors of 8. my tens digit is greater than my one digit. what is my measure?

18. ## Math

A circular garden has an area of 25π m2 If the . radius is increased by two meters, and fencing is sold only in one meter sections, how much fencing is needed to keep out the rabbits

19. ## Algebra

what is the solution to the system containing the equation ? x + y = -8 and -3x + 2y = 9

Please help-I'm really mixed up How do I find the permutations of the first 12 letters taken 3 at a time? I have a ton of these to do and really don't understand them at all-

21. ## Chemistry

How do these react? Some may have no reaction. a. aqueous chromium(III) nitrate plus magnesium metal b. aqueous lithium sulfate plus aqueous barium chloride c. solid lead metal plus aqueous potassium chloride d. aqueous lithium fluoride with aqueous

22. ## Maths

Hi Please can you help? Really sorry for repeating the question but I wrote it incorrect before. Find the particular solution of the differential equation from dy/dx=2/27(x-3)ã(x^2-6x+23) / (y) (y>0. for which y = 2 when x = 1, and then give this

23. ## math

use the numbers 1,2,3,4,5,6,7,8 and 9 one time make a true math equation :xxx + xxx = xxx. ex 237+654=891. Over 300 solutions with 32 different sums.

24. ## Calculus

"Using Lagrange multipliers, find the maximum value of f(x,y) = x + 3y + 5z subject to the constraint x^2 + y^2 + z^2 = 1." Any help would be appreciated!

25. ## CHEMISTRY

hydrogen reacts with nitrogen to produce ammonia. 3H2(g)+ N2(g) = 2NH3(g) Determine how much ammonia would be produced if 100g of hydrogen reacts?

26. ## elapsed time

start 11:38a.m. elapsed time 3hr 10 min what is the end time?

27. ## CHEM

HOW DO I Calculate the pKa of each acid. C2O4H2, Ka = 5.9 10-2

28. ## chemistry

Assuming a temperature of 37 C and 1 atm pressure, how many mol/min of CO2 is this?

29. ## Math

Write 0.09 x 10^12 in scientific notation.

30. ## Math

An ant weighs about 2 x 10^-5 lb. There are about10^15 ants on earth. How many pounds of an ants are on earth?

31. ## geometry

The width of a rectangle is 6 feet, and the diagonal is 10 feet. What is the area of the rectangle?

32. ## philosophy

State the moral issue involved, and provide an explanation as to why you think a relativist might have problem giving a justified response to it

33. ## Math

4z3(3z-1)+7(3z-1)

34. ## math

The freshman class is building a float for homecoming.One side of the float has a shape of a parallelogram with base of 12' and height of 6'. To complete the float the class must buy tissue to cover the side. It takes 3 boxes of tissue to cover each foot.

35. ## math

There are 50 apple trees in an orchard, and each tree produces an average of 200 apples each year. For each additional tree planted within the orchard, the average number of apples produced drops by 5. What is the optimal number of trees to plant in the

36. ## physics

The picture tube in an old black-and-white television uses magnetic deflection coils rather than electric deflection plates. Suppose an electron beam is accelerated through a 53.8-kV potential difference and then through a region of uniform magnetic field

37. ## chemistry

Balance the following equation: K2CrO4+Na2SO3+HCl>>>>>>Na2SO4+CrCl3+H2O Enter the coefficients for eachcompound, separated by commas, in the order in which they appear inthe equation (e.g., 1,2,3,4,5,6,7

38. ## algebra 2

find an equation of a circle satisfying the given conditions. Center(0,0), containing (-3,4)

39. ## chemistry

Calculate the molar solubility of Cu(OH)2, Ksp = 2.2 × 10–20, in 0.52 M NH3. Don't forget to use the complexation reaction Cu2+ + 4 NH3 ⇌ Cu(NH3)42+, K = 5.0 × 1013 What does he mean by the complexation reaction??? So confused, please help!!!

40. ## Psychology

Andy, a high school sophomore, lacks self-discipline, fails to plan ahead, and is excessively anxious. He is quickly frustrated by challenging tasks and frequently becomes overly critical of others. Use the psychoanalytic, humanistic, and socialcognitive

41. ## chemistry

what mass of (NH4)SO4 is required to prepare 500 cm3 of M/4 solution?

42. ## Psychology

Hello, I need to do a report on can a child under the age of 6 form criminal intent? I need to prove developmentally and all that why that child can't under age of 6 I am having problems finding websites to go to for research thanks

43. ## science

what is the entire pysical universe

44. ## Modern History

Hi I need help finding where this cartoon was originally published Its the LEV HAAS (Czech,1901-1983 "Do not trust him! The kulak is the most hardened enemy of socialism") one. Sorry I couldn't post the link. Thanks!

45. ## Islam in India...Economic effects?

What economic effects did Islam have in India? I'm having a tough time finding any info for an ESP (Economy, Society, Politics) chart in my book. Any info is welcome and thanked :)

46. ## science

if u have a negative vector component do u leave it as it is or do u minus into 180 degrees to make it positive? E.g -89.0i + 228.5j

47. ## chemistry

A 1.2431 -g alloy sample was analyzed for its copper content iodometrically. The alloy was dissolved in hot, concentrated nitric acid and prepared for analysis. The addition of excess KI(aq) solution precipitated the copper as cuprous iodide and liberated

48. ## chemistry

24ml of .05 mol per litre of SILVRE NITRATE reacts with 15 ml of potassium chloride.calculate molar concentration of potassium chloride.

49. ## Calculus

"Using Lagrange multipliers, find the minimum value of f(x,y) = x^2 + y subject to the constraint x^2 - y^2 = 1." Any help would be appreciated!

50. ## math

The number 1 is a perfect square (1X1=1) and a perfect cube (1X1X1=1). What is the next smallest whole number which is both a perfect square and a perfect cube?

51. ## geometry

what is the base of a parellelogram if the height is 2inches and the area is 26 square inches

52. ## Physics

Two 75.0-kg hockey players skating at 5.25 m/s collide and stick together. If the angle between their initial directions was 140 degrees, what is their speed after the collision? (Let the motion of player 1 be in the positive x-direction and the motion of

53. ## Physics 203 ( College)

A disk of radius 12 cm, initially at rest, begins rotating about its axis with a constant angular acceleration of 7.8 rad/s2. What are the following values at t = 4.0 s? (a) the angular velocity of the disk (b) the tangential acceleration at and the

54. ## accounting

Santa Fe Company purchased merchandise for resale from Mesa COmpany with an invoice price of \$24,000 and credit terms of 3/10,n/60. The merchandise had cost Mesa \$16,000. Santa Fe paid within the discount period. Prepare entries that Santa Fe Company

55. ## punctuation spelling and Capitalization Mistakes.

i the punctuation correct i did as much as i could When you proofread look for punctuation spelling and capitalization mistakes.

56. ## Spanish 6 th grade-Please check

I have three questions-Which sentence is written correctly? Es un buen clase. Es un buena clase. Es un buena clase. I think it is Es un buen clase. Is that correct? Second question- The term pelota refers to any kind of sports ball. Pelota is a ball but

57. ## HHS

What is the molality of a solution in which 15g of I2 is dissolved in 500g of alcohol?

58. ## Group Behavior in Organization

Is group cohesiveness important? How do group cohesive forces affect group processes? What can you do to increase cohesiveness in your group?

59. ## Chemistry

Consider 125 mL of 0.110 M MgCl2 solution. a. How many moles of MgCl2 are contained in 125 mL of 0.0110 M MgCl2? b. What is the concentration of Mg2+ ion? c. What is the concentration of Cl- ion?

60. ## Education

How is an ELL's level of language proficiency determined? How do you modify your assessments to evaluate ELLs understanding of content?

61. ## Soanish-6th grade-Another question-Please check an

I have another question. If I have to use the word tener to express she is hot-I would say -Ella tiene calor, correct?

62. ## Com155

Could you please help me locate the adjectives and adverbs in the below paragraph? ”Blending state of the art animation with live action, Hop is a comedy about E.B., the teenage son of the Easter Bunny. On the eve of taking over the family business, E.B.

63. ## geometry

If the arc on a particular circle has an arc length of 14 inches, and the circumference of the circle is 84 inches, what is the angle measure of the arc?

64. ## math

2 non congruent parallelo shapes

65. ## ACCOUNTING

In its financial statements, Trio uses straight-line depreciation with the half-year convention. The book value of the equipment at December 31, 2006, will be: a \$29,000. b \$35,000. c \$31,000. d Some other amount.

66. ## physics

Find the shear strain that results if a force of magnitude 9.00×105 is applied to the top square face of the plate, parallel to the side, and a force of equal magnitude is applied in the opposite direction to the bottom face of the plate as shown . Note

67. ## geometry

The area of a parallelogram MNOP is 48 sq cm. MX, which is a line segment perpendicular to diagonal PN where X is on PN, is 3 cm. How to find the length of diagonal NP?

68. ## English 102

Can some one read this and give some feedback please! Introduction Is same-sex marriage going to create issues on our society? Same-sex marriages will most likely to have issue in many political campaigns also churches and Christians everywhere will be

69. ## philosophy

Our text discusses the challenge relativism presents to various ethical and religious viewpoints. Consider a specific moral question which might make it difficult to accept the relativist's response. State the moral issue involved, and provide an

70. ## Calculus

An isosceles triangle is to have a perimeter of 64cm. Determine the side lengths of the triangle if the area is to be maximum. I need help setting this question up! Please

71. ## math

the perimeter of a rectangle is twice the sum of its length and its width. the perimeter is 40 meters and its lenth is 2 meters more then twice its width. what is the length?

72. ## Le Musee d'Orsay

Need information on this museum please.

73. ## Math

(4.3 x 10^3)(2 x 10^-8)

74. ## Education

How do you modify a lesson to teach ELLs?

75. ## math

In a storm, a plane flew against the wind and took 9 hours to cover 3,600 miles. The return trip, traveling with the wind, took 1 hour less. find the air speed of the plane, and the speed of the wind.

76. ## government

__________ is the term given to the activities of interest groups that seek to influence the making and implementation of public policy and to persuade government officials to support a group's position.

77. ## Education

Compare and contrast the teaching of comprehension strategies to ELL students and to native English speakers.

78. ## Math

Whole Number Math Riddle Clue 1: Double my tens digit and get my ones digit. Clue 2: Double me and I am less than 50

79. ## Chemistry

What is the freezing point of a solution of 1.17g of 1-naphthol, C10H8O, dissolved in 2.00ml of benzene at 20 degrees C? The density of benzene at 20 degrees C is 876g/ml. Kf for benzene is 5.12 degrees C/m, and benzene's normal freezing point is 5.53

80. ## Math

In a local dog show, there are prizes for first, second, and third place. If there are 18 dogs competing, how many ways are there to award the prizes (assuming no dog can win two prizes)?

81. ## Math

John bought 2 pounds of chocolate for \$7.50. Write expression to find the cost of 3.5 pounds of chocolate?

82. ## physics

A new type of spring is found where the spring force F is given by F=-kx + bx^2 where k=400 N/ m and b=100 N/m^2 and x is the expansion (or compression) of the spring from its equilibrium position. The spring is attached to a point mass of 1 kg sitting on

83. ## Calculus

Find the area of the region enclosed by the inner loop of the curve. r = 5 + 10sin(θ) Any help would be greatly appreciated!!!

84. ## history

when and how does Germany unite? What are the causes and consequences of the rebellions 1837-36 upper and lower canada? What are the causes of movement and the liberal movement National Europe in the first Motie nineteenth sciècle

85. ## Math

I am trying to help my son figure out this question. during an art class at your school, you and a class mate each won blue ribbons for 1/3 of the pieces you entered in to the contest. you won 2 blue ribbons and your classmate won 3. explain how this could

86. ## chemistry

How many grams of Na2CO3 are required to Na2S2O3

87. ## chemistry

How many grams of Na2CO3 are required to Na2S2O3

88. ## math

how is the speed determined of a falling object? what is the pull of gravity feet per second.

89. ## math

Place any of the four operations signs (addition, subtraction, multiplication, or division)in the boxes to make the following sentence true. 1___2___3___4=6

90. ## statistics

Is it ever inappropriate to report the mean? If so, when?

91. ## vocabulary

select the best synonym of the word satiate. a)empty b)fill c)deny d)deprive............please help.

92. ## math

the perimeter of a rectangle is twice the sum of its length and its width. the perimeter is 40 meters and its lenth is 2 meters more then twice its width. what is the length?

asked by help fast please!!! help help help
93. ## American History / Social Studies

The age of discovery to the american experiment? A.Practical Scientific Experimentation B.philosophies of religion C.moral values D.family life

94. ## Walmart and Superstore

These two companies are related to one another, and on the site ADVFN . Com I tried searching the stock symbol for superstore, but I cant find financial information on it. I found financial information for Wal-Mart. Could you please help me to find data

95. ## Chemistry

An atom it ground state contains 18 electrons. How many of these electrons are in orbitals with l=0? a.4 b.2 c.8 d.6

96. ## CHEMISTRY

WHAT MASS OF WATER CAN BE PRODUCED FROM 30.0G OF AMMONIA

97. ## grammar

The five sample paragraphs are below. choose two at random to read. Note that the paragraphs represent a range of quality. some have errors and do not flow effectively. Avoiding and managing debt is hard. Things cost so much money that it's hard not to

98. ## CHEMISTRY

HOW MANY MG OF C2H4 MUST BE USED TO PRODUCED 875J OF HEAT

A paragraph with this words a lot,because tonight,write,,opposite,scenery,again, questionnaire,excellence,and pennant

100. ## math

9/10x5/6x8/9 =? would that be 6/8 ? also the temperature ranged from -37 F to 103 F How many degrees was the temperature for the year? would you just take the difference between the two?

101. ## Chemistry

Consider the following reaction: H2+I22HI A reaction mixture at equilibrium at 175 K contains P(H2)=0.958 atm, P(I2)=0.877 atm, and P(HI)=0.020 atm. A second reaction mixture, also at 175 K, contains P(H2)=P(I2)=0.616 atm, and P(HI)=0.106 atm. What will

102. ## puzzled for english

solve these riddle for ur next clue the early bird catches the worm beaty blank nature take blank to the heart these need to make sense

103. ## Math

explain what the values of m and b in your equation tell about the relationship between number of containers to be recycled and attendance at the school event

104. ## Eth

Hello Imagine yourself as a current member of your selected group, and consider the following question

105. ## physics-reciprocal conversions Curie and Becquerel

Why so many sources give different values for reciprocal conversions Curie and Becquerel? 1 Ci = 3.7 x 10^10 Bq or 37,000,000,000 1 Bq = 2.7 x 10^-11 Ci or 0.000000000027

106. ## English

I still have a few parts I'm unsure of. I really hope you can help me. It's urgent, especially the last paragraph n.7 1)In the second stanza, the soldiers succeed in putting on their clumsy gas masks. Someone, however, is still crying out for help, unable

107. ## Math

Barney works part- time 30 hours a week at the cinema and earns \$6 per hour. If he savea 1/3 of his paycheck each week how much does he have left to speed after 4 weeks?

108. ## pharmacy tech

Determine the milliliters of water needed to prepare 2 oz of a 10% solution from a 12.5% solution and distilled water.

109. ## math

-Three cards are drawn from a standard deck of cards without replacement. what is the probability that all three cards will be clubs f. 3/4 g. 11/850 h. 1/3 i. 36/153 please help....!!!!!

110. ## science

Write a letter to persuade a friend that a change in temperature does not necessarily mean that a chemical change has occured.

111. ## Chemistry

When an element reacts with a compound to produce another element and new compound, the reaction is called?

112. ## CHEMISTRY

A sample of gas in a balloon has an initial temperature of 28 and a volume of 1360 . If the temperature changes to 86, and there is no change of pressure or amount of gas, what is the new volume, , of the gas? Express the volume numerically in liters.

what type of financial structure would you say the veterans hospitals and clinics run on?

114. ## geometry

An airplane over the pacific sights an atoll at 8 degree angle of depression. If the plane is 520hm above water, how many kilometers is it from a point 520 m directly above the center of the atoll? Help please :]

115. ## Education

Describe the difference between word-level skill and text-level skill attainment for ELL students. Then, describe specific things teachers can do to increase ELL students' text-level skills.

116. ## pharmacy tech

Determine the milliliters of water needed to prepare 2 oz of a 10% solution from a 12.5% solution and distilled water.

117. ## math

1.13s-s=_ 2.d+2d+d=_

10^-8

119. ## english

do you consider this a thesis statement? Autism,this topic intrest me because autism appears during the first three years of life.Autism causes several disoders and also is four more times prevalent in boys than girls

120. ## grade 5 math

what is 11 7th as a mixed number please i need help and its due tomorrow

Two point charges, the first with a charge of +3.25×10−6 C and the second with a charge of -4.63×10−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force

122. ## chemistry

Calculate the mass of silver nitrate needed to prepare a solution of concentration 0.01 moles per litre

123. ## chem

Calculate the volume of 0.200 M acetic acid and the volume of 0.100 M sodium acetate required to make 200.0 mL of a buffer solution with pH = 5.00. The Ka for acetic acid at 298 K is 2.00 x 10-5.

124. ## algebra 2

how to find equation of horizontal tangent line of 2y^3+6x^2y-12x^2+6y=1

125. ## math

what is 7 1/2 plus 3 9/12

126. ## math

Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

127. ## Physics

A 1440-kg crate of cabbages is laid on a level, frictionless track at the end of a heavy spring. The spring is compressed a distance of 0.100 m by a force of 83500 N. When the spring is released, it propels the crate. the spring constant of the spring

128. ## chm

determing concentration by spectroscopy lab discussion?

129. ## jobs

does anyone know any where that is hiring in akron ohio, i need a jon and i cant seem to find the one to get me started? can anyone help me? thanks!

130. ## Social Studies

After the Treaty of Paris, how long were the spanish in charge of Florida?

Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

132. ## physics

Water flowing through a garden hose of diameter 2.77 cm fills a 25.0 L bucket in 1.20 min. (a) What is the speed of the water leaving the end of the hose? (b) A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter

133. ## Physics

A. Suppose you had an object that you suspected had a mass of one half of one of the washer+paperclip units. (In the rest of this problem we’ll call that a “washerclip.”) Describe how you could use the balance you used in tutorial and a single

134. ## geography

what would happen if wheat was no longer a resource to the U.S.?

135. ## Physics

To what voltages must we accelerate electrons (as in an electron microscope, for example) if we wish to resolve; a) a virus of diameter 12 nm , b) an atom of 0.12 nm, c) a proton of diameter 1.2 fm?

136. ## physics

A longitudinal wave spreads radially from a source with power 345 W. What is the intensity 40.0 meters away? answer in W/m^2.

137. ## Chemistry

why the acidic medium is used for determination of the amount if iorn in a sample of soil using standard KMnO4

138. ## statistics

"... MALE CHILDREN BORN TO WOMEN WHO SMOKE DURING PREGNANCY RUN A RISK OF VIOLENT AND CRIMIAL BEHAVIOR THAT LASTS WELL INTO ADULTHOOD." CAN WE INFER THAT SMOKING DURING PREGNANCY IS RESPONSIBLE FOR CRIMINAL BEHAVIOR IN PEOPLE?

139. ## Physics

Here’s how two different students approached part A. Elizabeth: Since the little brother is half as heavy as her sister, he must sit twice as far from the pivot in order to “compensate” for his lower weight—6 feet instead of 3 feet. Jill: I used

140. ## Chemistry

Which of the following substances will oxidize Sn(s) to Sn^2+? a) Cu(s) b) Cl2(g) c)Cl-(g) d) Mg(s) e) Cu^2+(aq) f) Mg^2+(aq)

141. ## physics

The football is kicked over the goalpost with an initial velocity of vA=32 m/s as shown. Determine the point B (x,y) where it strikes the bleachers. type this question to google to find the figure. please and thank you.

142. ## bio

Supercoiling of DNA can occur (choose all that apply): A. when double stranded DNA is overwound B. when double stranded DNA is underwound C. when double stranded DNA is heated above it's Tm D. when DNA is treated with nucleases and Generally, cellular DNA

143. ## advanced math

sin(-15) tan(165)

144. ## science

a commuter plane starts from an airport and takes the route whereby it starts to city,located 175km away in a directiin 30egrees north of east of east. Next, it flies for 150 km 20degrees west of north,to city b.finally, the plane flies 190kmdue west,to

145. ## English

I still have a few doubts on the use of the present after "as if" and on other statements. Thank you for your cooperation. 1) They are hobbling along on their bloody feet, as if they are (why not were?) hurt or blind. They are so tired, they walk ask if

146. ## Chemistry

which is more concentrated a 1 liter solution containing 30 g of NaCl or a 1 liter solution containing 30g of KCl

147. ## math

Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

148. ## physics

what is the weight of a square whose thickness is 10mm

149. ## math

jimmy swam for 5 more min than tim. write an expression showing the number of min tim swam. let m represent the number of min.

150. ## trig maths

rewrite 7 sin2A – 5 sin A + cos2A = o to solve for A

151. ## HELP!!!! math

Find the measures of the interior angles of the pentagon below. A- 90 degrees B- x + 40 degrees C- x degrees D- x + 40 degrees E- x+ 50 degrees

152. ## Health

What does it mean if you have brown caking around your belly button, even if you follow basic hygenic practices.

153. ## physics 211

A deep-sea fisherman struggles to bring in a big salmon (see figure below). Find the force each hand must exert on the pole if the tension in the line is 159 N. Neglect the weight of the pole and assume that the force exerted by the left hand is directed

154. ## Algebra

Sorry Iposted that previous question wrong. Here is the right question. What is the remainder when the sum of the first 102 counting numbers is divided by 5250.

155. ## chemistry

A student determined the chloride content of a commercial salt by using the Mohr method. A 0.5324 -g sample of the salt was dissolved in distilled water and diluted to a final volume of 250. mL. A 25.-mL aliquot of the analyte solution was then titrated

156. ## English

What does this quote mean "what affects one directly affects all indirectly" by Martin Luther King Jr.

157. ## literature

I read Soldier Home by Ernest Hemingway and found two reasons to prove that it is important from 1865 to present time and they world war views and also show soldier's life after war. I need one more reason to support and will anyone tell what points are

158. ## Algebra

What is the positive difference in the sum of the letters in the words MATH and COUNTS, if each letter is assigned a value as follows: A=1, B=-2, C=3, D=-4,..., Y=25, Z=-26?

159. ## FIN

Phoenix, Inc made a coupon payment yesterday on its 6.25% bonds that mature in 11.5 years. If the required return on these bonds is 9.2% nominal annual, what should be the market price of these bonds?

160. ## grammar..

which sentences need commas ... a) the dessert had a fluffly cream topping b) the fish was served with a rich tangy sauce c) my first job was happy rewarding experience d) Mr.Hawkins has a large collection of rare valuuable coins e) the leader of the rock

161. ## ordering decimals

how do we fit a decimal in each pair 0.6 0.7

162. ## chemistry

24ml of .05 mol per litre of SILVRE NITRATE reacts with 15 ml of potassium chloride.calculate molar concentration of potassium chloride.

163. ## ordering decimals

how do we fit a decimal between this pair 0.6____0.7

164. ## social studies

Ads that rely on the testimonials of people who have used the product are using what technique?

165. ## English

Thank you very much. I hope you can have a look at these few sentences too. 1)*Interior monologue is often confused with the stream of consciousness, although they are quite different. 2)Actually, the former is the verbal expression of a psychic

166. ## chemistry

With respect to Boyle's law (lab experiment with textbooks on an apparatus), if in the classroom the air pressure in the classroom is equal to 2.4 textbooks, how does one find the total pressure of a book with the volume of 26? Am I on the right track by

167. ## statistics

For a population that has a standard deviation of 10, figure the standard deviation of the distribution of means for samples of size- (b) 3

168. ## Statistics

For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population: (a) a sample of 10 with a mean of 44, (b) a sample of 1 with a mean of 48. The

169. ## Calc

Suppose f(x,y) = A - (x^2 + Bx + y^2 +Cy). What values of A, B, and C give f(x,y) a local maximum value of 15 at the point (-2,1)? Any help would be appreciated!

170. ## area, perimeter

the perimeter of rectangle y is equal to its area. rectangle z has the same perimeter as rectangle y. the length of rectangle z is 5 inches and the width is 3 inches. explain how you can find the length and eidth of rectangle y.

171. ## Math

what is the math rule if u put in 1 and get 15, put in 2 and get 13, put in 3 and get 11, put in 4 and get 9, and put in 5 and get 7

172. ## English

Do you necessarily need references for a resume?

173. ## Calculus

"The quantity, q, of a product manufactured depends on the number of workers, W, and the amount of capital invested, K, and is given by q = 6 * W^(3/4) * K^(1/4) Labor costs are \$10 per worker and capital costs are \$20 per unit, and the budget is \$2000.

174. ## CHEMISTRY

If 15g of Sodium Hydroxide are treated with sulphuric acid to produce sodium sulphate, how many grams of sulphuric acid are required. write the balance equation for this reaction and calculate the quantity of sulphuric acid.

175. ## English

I really need to have a look at the first stanza of Owen's poem as I'm unsure of tense choice. Thank you. 1) In the first stanza the soldiers are retreating towards their trenches. Instead of being youthful, strong fighters, they are presented as

176. ## ordering decimals

Ms.Sue could you please show us another exmple i understood 0.6 0.65 0.7 how about with a double digit number like: 0.25_____0.15 or 0.425_____0.475

177. ## CHEMISTRY

What is the difference between the atomic weight, and its atomic number?

178. ## CHEMISTRY

carbon monoxide can be prepared by the reaction of steam with methane. CH4(g) + H2O(g) = CO(g) + 3H2(g) If 10g of methane is allowed to react with 10g of steam which of the reactants would be described as limiting. What is the theoretical yield of carbon

179. ## science

An abiotic factor that starts with c and the clue is soil type. So what is a soil type that starts with C?

180. ## vocabulary

can u give me a sentence with the words indifferent & heartily?

181. ## Civics

Did the American revolution undermined support for property qualifications for voting?

182. ## Physics

When a golf club strikes a golf ball, the club is in contact with the ball for about .0016 s. The 45-g ball acquires a speed of 71 m/s. a) What is the magnitude of the impulse applied to the ball? b) Estimate the magnitude of the average force exerted by

183. ## chem

how do you Convert moles S2O3^-2 to moles I2

184. ## math

4 8ths Equvalent Fraction. . . . . . . . .!

185. ## algebra

LCM of 14, 40, and 36

186. ## US history

why can the Gadsden purchase be referred to as "conscience money"??

187. ## mah

Use pennies, nickles, dimes, and quarters. Make a combination that is worth one dollar where you have one of some kind of coin, double of another, double that of another, and some number of the last coin.

188. ## chem

how do I caluclate (H3O+) in a solution if the PH is the following 1.81

189. ## math

what is 80+80

190. ## MATH

I am trying to figure out how to work this problem and need help. Q How many 2X6 pieces of 16 ft x 5 1/2 ins. for a porch that measures 16ft x 14ft? I changed the mixed number to an improper fraction (11/2) and found the area (224). 11/2 x 224/1

191. ## Chemistry

What is the total pressure of a mixture of gases made up of CO2, O2 and H2 if the partial pressures are 22.3 kPa, 44.7 kPa and 112 kPa respectively?

192. ## Math

Angles 1 and 2 shown on the back of the envelope are congruent.What is the measure,in degrees of

193. ## Calculus

Evaluate the following integrals {e˄x+e˄-x/ e˄x dx

194. ## Geometry

A line parallel to one side of a triangle divides one of the other sides into segments of lengths 15 and 9 and divides the third side so that the longest portion is 36. How long is the shorter portion of the third side?

195. ## Chemistry

A solution is prepared with 50.0g of HNO3 and 130.0g of H2O. It has a density of 1.21g/mL. What is the total volume (mL) of the solution?

196. ## english

entertainment is a barrier to accademic work

197. ## Chemistry

How do I convert moles to figure out chemical equations?

198. ## math

A person hired a firm to build a CB radio tower. The firm charges \$100 for labor for the first 10 feet. After that, the cost of the labor for each succeeding 10 feet is \$25 more than the preceding 10 feet. That is, the next 10 feet will cost \$125, the next

199. ## Sociology

My question that I would like to know from the experts, is did I answer the questions below correctly? 1=C, 2=C and 3=D 1)Which sociological perspective holds the view that people create their social worlds through interaction and manipulation of symbols?

200. ## vocabulary

which word is not an example of blending? a)housewife b)brunch c)telethon d)electrocute

201. ## Calc,

Find the value of the definite integral: int= integral sign int((x + 2)/(x^(3/2)),x= 16..25)dx I have no idea how to start this... would I get rid of the fraction?

202. ## Chemistry

If a 25.0 mL sample of 0.500 M HCl solution were diluted 125-fold, what would be the volume and concentration of the diluted solution?

203. ## math

Input:4 and 6 Output:12 and 17 What's the rule

204. ## physics

hi thank you for your help: i have a question that deals with finding the direction and magnitude of the net magnetic force on a loop that is next to a wire (the loop is in the wire's magnetic field) how do i set up a question like this? do i have to

205. ## elapsed time

elapsed time is 2hr 37min, end time is 10:52P.M., what is the start time?

206. ## math

If an electrician works for \$750.00 per hour. What would be his salary for 2 days?

207. ## vocabulary

the latin base CORD- means: a)hand b)eye c)heart d)head thank you so much for helping.

208. ## bio

Supercoiling of DNA can occur (choose all that apply): A. when double stranded DNA is overwound B. when double stranded DNA is underwound C. when double stranded DNA is heated above it's Tm D. when DNA is treated with nucleases and Generally, cellular DNA

209. ## chemistry

Explain how you would prepare the following dilute solutions from the more concentrated ones: a. 200ml of .500M HCL from a 6.00M HCL solution.

210. ## Stats

identify what is the 95 percent confidence interval for upper class respondents, give you have known their mean=15.34, standard deviation=3.48,and cases=38

211. ## Diff EQ

Find all critical points of the given system and investigate the stability of each. dx/dt = y - 1 dy/dt = x^2 - y

212. ## algebra

A motorvoat goes 36 miles upstream on a river whose current is running at 3 miles per hour. The trip up and back takes 5 hours. What is the speed of the boat ( assuming that it maintains a constant speed relative to the water)?

213. ## English

I Need Help In English? First off, I'd like to introduce myself. My name is Anta and I'm currently a Senior and have to do this online course to graduate and I am basically left with no choice but to teach myself. The lesson I'm on now has been quite a

214. ## precalculus

For the Function, y= x(x-4)(x+8) Y-intercept is: X-intercept is:

215. ## Physics

If you throw a rock as far as you can from the ground level of a building, and from the top level of a building, will it go further horizontally when thrown from the higher level or from the ground level?

216. ## trig

2 cosine squared pi over 8 minus 1 find exact value of given expression

217. ## MATH ALGEBRA

Can someone explain how to do this problem pleeeeasseeee. i need help .:/ . 3x – 11 = 10 – 4x THANKS SO MUCH!

218. ## biology

A gene for flower color can have multiple alleles like purple, white, or red. True ot false?

219. ## HCS 320

I am supposed to outline how to integrate communication from a central command area to all areas of the organization. The organization is FEMA. I am completely lost and I just need some help on how to get started. For instance what would be the central

220. ## algebra

vote count for canidiate a is 7310. vote count for b was 14190. ther is only 2 candidates what percent voted for a?

221. ## Group Behavior in Organizations

What is the importance of group member's perceptions about leadership and why is the phenomenon important as it pretains to group outcomes?

222. ## Group Behavior in Organizations

How does social influence/interaction affect decision making?

223. ## Group Behavior in Organizations

Why is it said that research about groups is not always valid and relevant?

224. ## Group Behavior in Organizations

Are group or individuals more effective in work environment?

225. ## ordering decimals

I do not understand how to find out what number come's between 0.425 and 0.475 would it be \$ 4.25- \$4.75

226. ## Chemistry

Write a net ionic equation and calculate K for the reaction in aq between acidic acid and sodium hydroxide. Given Ka (acidic acid) = 1.8 x 10^-5

227. ## physics

how fast will a object be traveling when drppped from 30 feet high

228. ## physics

A straight ladder is leaning against the wall of a house. The ladder has rails 4.50 m long, joined by rungs 0.470 m long. Its bottom end is on solid but sloping ground so that the top of the ladder is 0.780 m to the left of where it should be, and the

229. ## Algebra 1

Can you show the steps and explain how to solve 8-(x-2)

230. ## Computer programming

Submit pseudocode for the following programming exercise: Fat Gram Calculator Design a program that asks for the number of fat grams and calories in a food item. Validate the input as follows: - Make sure the number of fat grams and calories are not less

231. ## Chemistry

A sample gas has a volume of 200 cm^3 at 25 degrees celsius and 700 mmHg. If the pressure is reduced to 280 mmHg, what volume would the gas occupy at the same temperature?

232. ## math

identify what is the 90 percent confidence interval for occupational prestige for respondents with only a bachelor's degree (N=750), given you have known their mean=52.74, standard deviation=12.67.

233. ## Calculus

evaluate the following integral e˄x+ e˄-x/ e˄x-e˄-x dx

234. ## math

Need to write ratio 3 different ways. 1. 6 pencils to 4 erasers ANSWER= 6/4, 6 to 4, 6:4 Need to write an equivalent ratio for each. 1. 9/36 ANSWER= 1/4, 9 to 36, 9:36

235. ## 6th grade Spanish

I have two questions-Which sentence is written correctly? Es un buen clase. Es un buena clase. Es un buena clase. I think it is Es un buen clase. Is that correct? Second question- The term pelota refers to any kind of sports ball. Pelota is a ball but what

236. ## geometry

the diagonals of a rhombus have the lengths 6 and 8 centimeters. whats the number of centimeters of the perimeter of the rhombus?