# Questions Asked onSeptember 8, 2009

1. ## Computers(Java Programming)

Service Class: Lottery Write a Lottery class that simulates a lottery. The class should define an array of five integers named lotteryNumbers. The constructor should use the Random class (see the Java API) to generate a random number in the range of 0 to

2. ## math

ms. sue yes for a whole number they want us to round it to the nearest 19 tenths' also they are asking to round the same number which was 1119 to the nearest hundreths......then they ask which one is greater???????

3. ## Physics

A helicopter is ascending vertically with a speed of 5.00 m/s. At a height of 120 m above the Earth, a package is dropped from a window. How much time does it take for the package to reach the ground? v_0 for the package equals the speed of the helicopter

4. ## Physics ?#2

A ball is dropped from the top of a 53.0m high cliff. At the same time, a carefully aimed stone is thrown straight up from the bottom of the cliff with a speed of 25.0m/s The stone and ball collide part way up. How far above the base of the cliff does this

5. ## calc

Air resistance acting on a falling body can be taken into account by the approximate relation for the acceleration: a=dv/dt=g-kv where k is constnat Derive a formula for the velocity of the body as a function of time assuming it starts from rest (v=0 at

6. ## social studies

Why is the spring season so wet?

7. ## English

1. What do you do before school? 2. What do you do at school? 3. What do you do after school? (Would you write down some answers to the questions? The more, the better. Thank you.)

8. ## Math

A model rocket blasts off and moves upward with an acceleration of 12 m/s^2 until it reaches a height of 28 m , at which point its engine shuts off and it continues its flight in free fall. What is the speed of the rocket just before it hits the ground?

9. ## Physics

A passenger walks from one side of a ferry to the other as it approaches a dock.Passenger's velocity is 1.60 due north relative to the ferry, and 4.50 at an angle of 30.0 west of north relative to the water. What is the magnitude of the ferry's velocity

asked by Meow Mix
10. ## Physics

You drive a car 1400 to the east, then 2400 to the north. The trip took 3.0 minutes. What was the direction of your average velocity? What was the magnitude of your average velocity? For some reason I seem to be lacking ability to answer these questions. I

11. ## Algebra

O three consecutive passes a football team gains 8 yards, loses 15 and gains 44 yards. What number represents the total net yardage?

12. ## algebra

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 miles per hour and train B is traveling at 60 miles per hour. Train A passes a station at 8:25 p.m. If train B passes the same station at 8:37 p.m. at what

13. ## algebra

solve by the elimination method 3r - 7s=-29 7r + 3x =29

14. ## algebra

solve by the elimination method 3r - 7s=-29 7r + 3x =29

15. ## algebra

Find the slope f it exists x=-4 M=

16. ## algebra

Use the distributive property to help solve the equation. 8(w-4)=-32 w =

17. ## algebra

solve by the elimination method 3r - 7s =-29 7r + 3s = 29 What is the solution of the system? Type an ordered pair. Type an interger or a fraction or type N if there is no solution or type 1 if there are infinitely many solutions.

18. ## math

1. Solve for the indicated letter D=4e, for e The solution is e= 2. G(x) = 6/(6-5x) Choose the correct domain below {x|x is a real number and x ≠0} {x|x is a real number and x≠6/5} {x|x is a real number and x≥6/5} {x|x is a real number and x ≠6} 3.

19. ## operation management

(01) Why study operations management? (02) What is the difference between the terms “production management” and “operations management’? Chapter Two (01) What are the reasons for formulating and implementing an operations strategy? (02) Describe a

20. ## MATH

State whether each equation in Exercises 25–30 represents a linear, quadratic, or exponential function. Tell how you decided. 3x^2=5 *I believe this equation is a exponential function but, I'm not sure how to explain it.*

21. ## MATH

State whether each equation in Exercises 25–30 represents a linear, quadratic, or exponential function. Tell how you decided. y=10^3x *This one I am very unsure about.*

22. ## science

1, how much energy is needed to run a 40 watt light for 2 hours. 2. how you can tell coal is a more concentrated store of chemical energy than wood is. 3.why is it that the natural realese of carbon from decaying plant and animal material dose not cause

23. ## Math

For which table(s) of values in Exercises 39–42 is the relationship linear? Tell how you decided. Write the equation for each linear relationship. x y 5 20 10 30 15 40 20 50 25 50 30 50

24. ## English

Here's the homework assignment, which I don't understand how I'm suppose to do this. Check out the current National Health bill online and compose an outline. I can only find a republic of south Africa health hill and that one is 50 pages long.

25. ## English

1. Here is a checklist and some tips. 2. Here are a checklist and some tips. (Which one is right?)

26. ## math

i don't understand what to do.if someone can tell me what to do i can try to get the answer. solve each system by graphing.identify systems with no solutions and systems with infinitely many solutions, using set notation

27. ## Geometry

Which descriptor could be used to characterize three lines that intersect at the corner of a cube: coplanar, cubic, concurrent, or complementary? A) Coplanar B) Cubic C) Concurrent D) Complementary

whats 2+2

29. ## Cultural Diversity

Do you think slavery still exist today? In America? In other countries?

30. ## Accounting

Use the following adjusted trial balance of Webb Trucking Company to prepare a classified balance sheet as of December 31, 2005. 4-4 Account Title Debit Credit Cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \$ 7,000 Accounts receivable . .

31. ## science

what is the fizzy gas called when you mix carbenit with acid?

32. ## English

I need to write a few sentences on the difference between a conventional novel and a graphic novel. Can anyone help. I'm 10, so in writing i can understand. Thanks

33. ## Geography

8. Four major vegetation regions common to both the US and Candada are a. tundra, rain forest, ice cap, and desert scrub b. forest, desert scrub, savanna and continental c. tundra, forest, grassland, and highlands d. ice cap, grassland, forest, and savanna

34. ## math

Solve for s and t if 16/(y-2)=4st. I don't remember how to get y by itself so if someone could tell me how do that I would appreciate it.

35. ## College Algebra 2

for the following equation state the value of the discriminant and then describe the nature of the solution 11x^2+9x+11=0 What is the value of the discriminant? Which one of the statements below is correct? A. The equation has two imaginary solutions. B.

asked by Lisa H
36. ## Chemistry

Please help me with this chemistry question? I am working on a lab report and I am stuck on this question: Use the concept of stoichiometry to explain why balanaced equations are necessary when performing calculations in chemistry. Propose a situation

37. ## Math

I have no idea how to start. I cannot remember how to solve this for anything. 3x/4+6=-12

38. ## Chemistry 130

Can someone please help me with these questions? 1 (7). Rank the following in order of increasing radius based on their positions on the periodic table: S, S-2, Cl a. S, S-2, Cl b. S-2, Cl, S c. Cl, S, S-2 d. Cl, S-2, S e. S, Cl, S-2 6 (16). Methane burns

39. ## Social studies

"Without our two great political parties cutting across economic and geographic interests, democracy as we know it could never have been made to function." The author of this statement probably meant to suggest that

40. ## Chemistry 130

Will someone help me by letting me know if I did these correct, or if there the correct answers? Thanks! 2 (10). If two moles of hydrogen gas (H2) react in the following equation, how many moles of H2O will be formed? 2H2 + O2 „³ 2H2O a. 2 moles b. 4

41. ## algebra I

Question: A telemarketing company had a loss of \$2113.15 in July, a loss of \$597.11 in August, and a profit of \$4121.55 in September. Did the company make a profit during the 3-month period? If so, what was the profit? Answer: Yes, the profit was \$1411.24

42. ## maths

1. Q: 2|3x-5| when x=(-3) A: 24 2. Q: |6-x|+4 when x=5 A: 5 _______________ Simplify the expression. 1. (-4)(-x)(x^2) my answer: 4x^3 2. (24)(-5x)(-x) my answer: 120x^2 3. -x(4-x) my answer: -4x-x 4. -4t(t+2) my answer: -4t^2+(-6t) 5. b^2(4-b^2) my answer:

43. ## Parts of speech

The following phases are bullet points in a letter. Which one is not in parallel form? a. Increase sales support staff b. Don't forget maketing plan c. Run market test with Group A d. Decrease overhead.

44. ## pre-ap pre calculus

To solve an equation by finding x-intercepts, Cynthia graphed the function y=x^3-5x+|2x-3| Give several possibilities for the original equation. How do I do it and what's the answer? Thanks

45. ## algebra

I don't knw how to do fraction equations!! eg. 1/2x + 1/5 = 4

46. ## pre calc

True or false: a. |3x-5|=|2x+4| if and only if 3x-5=2x+4 or 3x-5= -(2x+4) ______ b. |2x+7|=-4 if and only if 2x+7=4 or 2x+7=-4 ______ how do you do these and what's the answer? thanks

47. ## mathematics

1. you toss three coins. what is the probability P that all are heads? 2. write and simplify an expression for the perimeter of a triangle with these lengths: 1/2x, x, 5/4x for number one, i think it might be 1/8 i'm not sure.. please help!!

48. ## Chemistry

Is the experiment to recreate the big bang theory by colliding to atoms being continued? If successful, would it really create a black hole?

49. ## Chemistry 130

Will someone let me know if I did these correct? 1. Rank the following in order of increasing radius based on their positions on the periodic table: S, S-2, Cl a. S, S-2, Cl b. S-2, Cl, S c. Cl, S, S-2 d. Cl, S-2, S e. S, Cl, S-2 I believe it's C. Cl, S,

50. ## Statistics

My teacher is averaging up our grades in one area instead of including them all on our report card. For example, he is putting in one grade for the tests (the average of the grades) instead of including each individual grade for all of the tests. Are these

51. ## maths

Simplify the expression. 1. 3y-(6y+2)(-y) 2. (-7x+^2)(-x)+x^2 3. 3y/2 divide by 2/7 4. -x/4 divide by 6/x I couldn't do any of these. Please explain.. Thanks!

52. ## math

how many gallons of a 12% indicator solution must be mixed with a 20% indicator solution to get 10 gallons of a 14% solution

53. ## History

How did human history in north america during the period described in the prologue differ from the events of asia,eurasia,and europe

54. ## english

pick two words out of these words that fit into the sentence taut relish purge loathsome lament affliction cowering fetter infamous murky It is not exactly an_________ but seniors are forced to park quite far from campus. Perhaps the athletes among them

55. ## Business Mangement

what is the difference between operational and a tactical plan?

56. ## english

choose an antonym from column 2. col 1 cure rejoice lucid stain,pollute slack abhor enjoyable reowned boasting freed col 2 taut relish purge loathsome lament affliction cowering fetter infamous murky

57. ## 8th grade

What was the first set of laws that governed America called?

58. ## English

1. Which are more important? 2. Which are most important? 3. Which is more important? 4. Which are most important? 5. Which is the most important? 6. Which are the most important? (Which one is correct? Are all OK? What is the difference?)

59. ## Chemistry

Did I do these right? Can someone let me know if I did them correctly? I had someone help me with the problems but know I want to make sure their the right answers? 1. Methane burns in oxygen according to the following equation: CH4 + 2O2 ----> CO2 + 2H2O

asked by Jessie T
60. ## 6th grade Math

Two number cubes rolled 150 times.Estimate how often the following occured: A sum less than 4 appeared 15 times. A sum of 7 appeared 11 times. A sum of 6 or greater appeared 85 times.

61. ## History

How might the relationship between the handloom and the power loom be a metaphor for the changes brought about by the Industrial Revolution? I don't get this at all :( help! Thanks :)

62. ## english

it is not exactly an(affliction) but seniors are forced to park quite far from campus. is affliction right

63. ## 5th grade

what is 21,079,000 round to the nears hundred thousand

64. ## algebra help asap

S/A= 4.5, D/A=4.5,N/E=.80, A= D+E. SOLVE FOR N/S

65. ## social studies

what is the difference between latitude and longitude and is there a good way to remember it???? HELP! thanks M**** :C

66. ## english

i must (fetter) the fact we do not have comfortable shuttles from the lot

67. ## Citizenship

How is Fair-trade a citizenship activity? Is it active?

68. ## eng

what is relish atonym

69. ## Geometry

Consider the experiment of rolling a single die what is the probability of rolling an odd number? I came up with 0.5,even odds as there are 3 odd and 3 even numbers so the prob. is 0.5 Did I do this correct.

70. ## finanace

After a protracted legal case, Joe won a settlement that will pay him \$11,000 each year for the next ten years. If the market interest rates are currently 5%, exactly how much should the court invest today, assuming end of year payments, so there will be

If m

72. ## math

The volume of Fort Peck Dam is 96,050 X 1000m3. Suppose the state of Montana decides to increase the volume of the dam. After the improvements, Fort Peck will hold 10 times as many cubic meters. How many cubic meters will Fort Peck hold after the

73. ## math

Accoring to math teachers, what did the acorn say when it grew up?

74. ## ALGEBRA

SUZY IS 10 YEARS OLDER THAN BILLY, AND NEXT YEAR SHE WILL BE TWICE AS OLD AS BILLY. HOW OLD IS SUZY NOW? HOW OLD IS BILLY?

75. ## Math

What word expression or name is depicted below? NE 14 1O5

76. ## Literature- King Oedipus

Who did Oedipus believe was his father?

77. ## Science

Q: do tomato plants grow better with fertilizer Hypothesis: I think if i give the tomatoes fertilizer they will grow taller Contolled Experiment 1. Control group list factors 2. Experimental Independant Variables 3. DATA COLLECTION

78. ## English

What is an Adverb? and How is it used in a sentance?

79. ## math

Accoring to math teachers, what did the acorn say when it grew up? there is ten questions and 15 boxes

80. ## 4th grade

in va. history,what is being described using the terms bordering,near and next to?

81. ## Literaure- King Oedipus

One more question........ Who was King Oedipus lead away from?

82. ## algebra

I don't understand how to graph y>x+3 or y

83. ## math

Write the next four terms of the sequence 27, -18,12,-8,....

84. ## BC Calculus

lim x ->infinity (e^x/lnx) I got infinity/0 but is that allowed to be my answer? what about this one: limx->infinity (sqrt of x /e^x) i got 0/infinity for this.

85. ## science

Which soil is bad for wind erosion?

86. ## MATH

Determine whether the situation calls for a discrete or continuous random variable. The braking time of a car Is it discrete?

87. ## math

help me do the following problem: -37 + 84 =

88. ## Chemistry-

The question I have to answer is: If two peaks of gas chromatogram are too close, what changes in experimental conditions (factors affecting separation) could you make to separate them more effectively? Answer: I thought the answer would be the length of

89. ## social studies

what city is 36 degrees north latitude and 90 degrees west longitude

90. ## Math

3/4(-8/-2+3{2}) In written words it three fourths multiplied neg 8 div neg 2 plus 3 2nd power

91. ## pre calc

list the positivve integers between -3 and 7.

92. ## science

what term refers to the sum of all of the forces acting on an object?

93. ## Math

What word expression or name is depicted below? NE 14 1O5

94. ## 5th grade math

0.07 written in words

95. ## math

Not to sure of how to make reasonable graph for this question. A car was purchased new in 1970. The owner has taken excellent care of the car, and it has realtivly low miles. Draw a resonable graph to show the value of the car from the time it was

96. ## 5th grade math

How is 0.07 written in words

97. ## 4th grade

how can you tell if a division problem is a false equation

98. ## science

which soil can't resists wind ersion? or Which soil is most likely to be eroded by wind?

99. ## History

Who provided Americans with a lasting definition of federalism?

100. ## social studies

slavery in the united states

101. ## Alegebra 1

Urn A has balls numbered 1 through 7. Urn B has balls numbered 1 through 5. A ball is selected at random from urn A and then a ball is selected at random from urn B. What is the probability that a 4 is drawn from A followed by a 2 from B?

102. ## algebra

S/A= 4.5, D/A=4.5,N/E=.80, A= D+E. SOLVE FOR N/S

103. ## vocabulary

slavery in the united states

104. ## Science

Q: do tomato plants grow better with fertilizer Hypothesis: I think if i give the tomatoes fertilizer they will grow taller Contolled Experiment 1. Control group list factors 2. Experimental Independant Variables 3. DATA COLLECTION

105. ## science

which is soil better for wind erosion? gravel or humus

106. ## Geography

What are the capitols of the following countries? 1. Spain 2. Mexico 3. Puerto Rico 4. Peru 5. Venezuela 6. Ecuador 7. Chile 8. Uraguay 9. Argentina 10. Cuba 11. Dominican Republic 12. Bolivia 13. Colombia 14. Paraguay 15. Panama 16. Nicaragua 17. Honduras

107. ## english

Hi, we are working on commas. I was wondering if I put the commas in the right places in this sentence: Please mail this to Donna Harris, 328 Maple Street, Branford, Connecticut 06405.

108. ## math

The sum of my ones and tens digit is 10. My tens digit is greater than my ones digit. I am a prime number. What number am I?

109. ## 3rd grade math

What if Ali had only tens and ones?How could she have modeled 624 without using hundreds?

110. ## ALGEBRA

Can anyone give an example of a scenario that can be modeled with a linear equation and a quadratic equation?? If there are equations that are not linear or quadratic, can you explain???

111. ## Math117

Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to adding polynomial expressions? How is it different?

112. ## 3rd grade math

3,456 in expanded form? 3 thousand 4 hundred and 56? is this right?

113. ## Math - Multiple choice

The following data describes the rainfall. Jan - 1 Feb - 3 Mar - 1 Apr - 2 May - 2 Jun - 2 Jul - 19 Aug - 21 Sep - 3 Oct - 3 Nov - 2 Dec - 3 Which statement best describes the averages? A. The mean is the least appropriate to use to describe the average

114. ## algebra 2

list the intergers between -3 and 7. liss all the negative intergers greater than -4.

115. ## Language Arts

what is an antonym for rationalize?

116. ## 10th grade

Meaning of tool used to measure length?

117. ## MATHS

Please help with these maths questions 1) From a ribbon of lenghth 2 2/7m, I used 4/7m to wrap a box and 1 5/7m to tie a bow. How many metres of ribbon did I used? 2) Sammy's water tank contained 7 2/5 L of water in the morning. By the end of the day,

118. ## algebra2

how do i write the problem x is greater than or equal to 2 and less than or equal to 6

119. ## Algebra

In my algebra b ook it says if a is less than 0, the absolute value of a is negative. But I thought absolute value was always positive! Is this a goof or is there some truth to this?

120. ## science

What does factors mean?

121. ## physics

A circular surface with a radius of 0.053 m is exposed to a uniform external electric field of magnitude 1.48 104 N/C. The electric flux through the surface is 72 N · m2/C. What is the angle between the direction of the electric field and the normal to

122. ## physics

During a particular thunderstorm, the electric potential difference between a cloud and the ground is Vcloud - Vground = 4.90 108 V, with the cloud being at the higher potential. What is the change in an electron's electric potential energy when the

123. ## physics

Point A is at a potential of +220 V, and point B is at a potential of -140 V. An á-particle is a helium nucleus that contains two protons and two neutrons; the neutrons are electrically neutral. An á-particle starts from rest at A and accelerates toward

124. ## science

which is bettter for wind erosion? gravel soil or sandy soil.

125. ## physics

Two point charges, +3.45 µC and -6.50 µC, are separated by 1.19 m. What is the electric potential midway between them?

126. ## physics

Two equipotential surfaces surround a +1.61 10-8-C point charge. How far is the 191-V surface from the 68.0-V surface?

127. ## algebra

how do i write the inquality x is between -1 and 2.

128. ## algebra

how to work and solve 7(y-2)+8=3(y-4)-2

129. ## Algebra 1

Lately I just have blacked out in my algebra 1 class. Here's a equation on my worksheet, and I would be happy if you could show in steps how you got your answer. Thank you. (2x²+5x+3)-(x²+2x+1)

130. ## accounting

What does it mean to explain the importance of understanding inventory valuation methods in determining the quality of the profits numbers?

131. ## 4th grade

HOW DO I WRITE THE WORD FORM AND TELL THE VALUE OF THE UNDERLINE DIGIT OF EACH NUMBER 4,6_00,028

132. ## calculus

use inequslity notation to describe the set of any numbers. Define any variables you use. No item at Sarah's Variety Store cost more than \$2.00. The price of a gallon of gasoline varies from \$1.099 to \$1.399. Need help please

133. ## Functions

State the domain and range of each function. Justify your answer a) y=1/(x+5) b) y=√1-2x I know how to do domain and range, but I don't remember what shapes these form. It's not parabolas, is it? Then, to justify them, I need to draw them, so that's why

134. ## Math

Can you make a two row dot arrary using the number 2?

135. ## math

what is 15/5[(6*5)+4]4 to the second power

136. ## Chemistry II

If the freezing point depression (DTf) is 5.62 and the freezing point depression constant (Kf) is 3.90, what is the molality of the solution? Assume that the solute is a nonelectrolyte (i = 1).

137. ## Chemistry II

An unknown solute (a nonelectrolyte) was obtained and 5.37 g was weighed out. After dissolving the solute in water, the mass of the solution was 26.58 g. From the experimental results, the freezing point depression was found to be 3.6oC. If the freezing

138. ## math

if you have 5 candy bars and have to share them with 20 people but 1/4 of the people gave up 50% of the total number of people. what % of the people had no candy? how many of the total had more than their share? How much was the original share every one

139. ## physics

there is no air resistance. using a cannonball launcher, how can i find how far the cannonball will go (horizontally) if launched at 30 degrees? heres what i know: -the vertical displacement is -.245m -the vertical acceleration is -9.81m/s^2 -at 0 degrees,

140. ## Part of Speech.

In the follwing sentence what is some? If Julie makes apple pie, you should have some.

141. ## science

why do you think the deer population was only 4,00 in 1905 when the carrying capacity of the rangeland could support 30,000 deer or more. I don't understand why a population could be so far below the carrying capacity.

142. ## MATHS

Could you please check my answer? Daniel played a cards game in which each loss meant that he had to give the other player half the cards he had left. He lost four times, one after the other, and then had 3 cards left. How many cards did he have when he

143. ## va.studies

in virginia history,when i asked what is being described using the terms that show connection between two places,it is referring to a certain place,that was probobly misworded on my part

144. ## math

how do you write 8042176 in words

145. ## Chemistry

Methanol (CH3OH) is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen: CO (g) + 2H2 (g) -> CH3OH (g) An equilibrium mixture in a 2.50 L vessel is found to contain 2.62e-2 mol CH3OH, 0.170 mol CO, and 0.303 mol H2 at 500 K.

146. ## 9th grade

what is the purpose of a neighborhood?

147. ## history

how has immigration impacted the creation of united states?

148. ## science

a ball is thrown straight upward and returns to the thrower's hand after 3.00s in the air. A second ball is thrown at an angle of 30.0 deg with the horizontal. At what speed must the second ball be thrown so that it reached the same height as the one

149. ## math

is this math problem correct? 9+(-3)=6

150. ## Range of function..

What is the range of this function? {(-2, 4), (2, 0), (-3, 1), (3, 0)}

151. ## history

name a time in world history that explusion has occured? where does explusion fall on the inter group relations continuum?

152. ## science

what is the process of transforming garbage into waste

153. ## math

daniel has twice as much money in one-dollar bills as he does in five-dollar bills. he has 33 bills in all (all one-dollar and five-dollar bills). how much money does he have?

154. ## MATH

S/A= 4.5, D/A=4.5,N/E=.80, A= D+E. SOLVE FOR N/S is the answer 1

155. ## Math:Polynomial Functions

h(x) = -7x I was thinking that this was not a polynomial function because -7x is just one term making it a monomial but the answer key says it is a polynomial function. Could someone explain why that is so? Thanks :D

156. ## 3rd grade English

the greatest City in the Midwest Is the words above capitalized correctly?

157. ## clark

Why might you use the distributive property to solve 4(78)

158. ## 10th grade english

what is the climax in the book the bass the river and shelia mant by w d wenthrell

159. ## Algebra 1

(6+8)8-9/3(9+3-2)^2

160. ## pre-calculus

3x^3 -2x^2 - 7x - 4 = 0 Can you please help teach me how to put this equation into the graphing calculator.

161. ## rhymes word

how cant i do the rhymes word for jan-fan-and- glad

In the book Begging for Change, by Sharon G. Flake, what is the theme? I'm not exactly sure what exactly theme is. I came up with the fact that nothing good comes of bad money, but I'm not sure if this is the correct answer, please help!!

163. ## Pre-Calculus

x^4-16x^3+90x^2-111x+173 When I put this equation into the graphing calculator, I get a parabola. I'm not sure how to find the zeros. Can you help?

164. ## math

Could someone help explain what I am to do? The amount of background noise is important to television news reporters. One station developed the formula n= -t^2 + 12t +54 showing the noise level in decibels (N) as it relates to the time after the speaker

165. ## Math 111 (College Algebra)

Rational number or irrational? And why? I have been challenged in my college algebra class to determine whether or not .12122122212222122221222221... (continuing forever)is a rational number or not. I need to prove one way or the other. I am lost! :-( I

166. ## 7th math

write fraction as percent, 23/4 write percent in lowest fraction form, 60% 99% = 49.5/50? steps please...

167. ## com 220

What strategies do you use for revising a paper? How do you know when to accept feedback from another source? What makes feedback valuable to you?

168. ## math

A= D+E D/A=0.75 SOLVE D/E

169. ## science

Scientist do experimental tests more than once so they can reduce the chance of errors. This is called conducting what?

170. ## Math

When trying to figure up sales tax on a problem how would one write it out I have searched the site some say 1.05 some say 0.05 and something about moving a decimal over 2 spaces to the left. Im not getting it Like the problem is 3 shirts is 9.99 ea we

171. ## Math

Is .121221222122221... (the pattern in this number continues forever) a rational number or irrational number? Why? (my research is listed in a previous question post, but I'm stuck!!! Please help!) :-)

172. ## physics

A wave of amplitude .30 m interferes with a second wave of amplitude .20 m. What are the largest and smallest displeacements that can occur? What type of interference is demonstrated by each displacement?

173. ## SOCIAL STUDIES

WHAT ARE PROVISIONS OF THE CONSTITUTION?

174. ## us history

what institution did the virginia tobacco system help establish? was it the virginia company?