# Questions Asked onJanuary 25, 2012

1. ## physics

What is the volume of a piece of iron (ñ = 4.4 g/cm3) that has a mass of 0.65 kg?

2. ## physics

What is the volume of a piece of iron (ñ = 4.4 g/cm3) that has a mass of 0.65 kg?

3. ## physics

What is the volume of a piece of iron (ñ = 4.4 g/cm3) that has a mass of 0.65 kg?

4. ## algebra

A recent study shows that the number of Australian homes with a computer doubles every 8 months. Assuming that the number is increasing continuously, at approximately what monthly rate must the number of Australian computer owners be increasing for this to

5. ## Problem Solving: Make a Table

Ed saved \$50 one week. For the next six weeks, he saved \$25 more than the week before. how much did he save in all? one student sloved this problem using the expression \$50 + 6(\$25)=200 What error was made? What is the right anwser?

asked by Lorena P.
6. ## Chemistry

By using the Clausius-Clapeyron equation,lnP=Hvap/RT +C , derive the relationship between the vapor pressures,P1 and P2, and the absolute temperatures at which they were measured,T1 and T2 .

7. ## chemistry

How many grams of carbon dioxide can form when a mixture of 3.60 g ethylene (C2H4) and 2.70 g of oxygen is ignited, assuming complete combustion to form carbon dioxide and water?

8. ## math

Bobby has 3 times as many model spaceships as his friend Sylvester does. Bobby has 21 spaceships. How many model spaceships does Sylvester have ?

9. ## math

Dan saved \$463 over the 12 weeks of summer break. He saved \$297 of it during the last 4 weeks. How much did he save during the first 8 weeks?

10. ## math

Dan saved \$463 over the 12 weeks of summer break. He saved \$297 of it during the last 4 weeks. How much did he save during the first 8 weeks?

11. ## math

Dan saved \$463 over the 12 weeks of summer break. He saved \$297 of it during the last 4 weeks. How much did he save during the first 8 weeks?

12. ## Chemistry

Gasoline is a mixture of hydrocarbons, a major component of which is octane,CH3CH2CH2CH2CH2CH2CH2CH3. Octane has a vapor pressure of 13.95 torr at 25 degrees celcius and a vapor pressure of 144.78 torr at 75 degrees celcius. Use these data and the equation

13. ## psycology

name some socioemotional changes in adolscents.

43=3(x+1)+2x

15. ## chemistry

Calculate the value of ΔHo for the reaction 2 CH4 (g) -> C2H6 (g) + H2 (g) given the following thermochemical equations: C2H2 (g) + H2 (g) -> C2H4 (g) ΔHo = – 175.1 kJ C2H6 (g) -> C2H4 (g) + H2 (g) ΔHo = + 136.4 kJ C2H2 (g) + 3 H2 (g) -> 2 CH4 (g)

16. ## physical science

A stone is dropped from rest at the top of a tall building. Determine the distance the ball has traveled after ½ second, one second, 3/2 seconds, and 2 seconds. How fast is the ball moving at the end of the 2 seconds?

17. ## physics

A man of mass 75 kg and a women of mass 55 kg stand facing each other on an ice rink , both wearing ice skates . The women pushes the man with a horizontal force of 85 N in the positive x direction . a) What is the man s acceleration? b) What is the

18. ## trig

how to find out maxima of function 3acos3theta

19. ## collge calculus

find the derivative of y=[(4^(7x))(7^(4x))]/[10^(e)] without using logarithmic differentiation!

20. ## algebra

Some bank robbers leave town, speeding at 71 mph. Twelve minutes later, the police give chase, traveling at 80 mph. How long will it take after the robbery for the police to overtake the robbers?

21. ## health accounting

explains the relationship between finance and accounting, and how they operate to determine financial viability within a health care organization.

22. ## english

Who is kailas?how is he different from chandran?(the bechelor of arts)

23. ## English

I urgently need to know if the following sentence is possible: 1) Robinson told the captain his story on how he had been made a slave. 2) The waves started crashing onto the ships.

24. ## Statistics-Probability

Consider a binomial random variable X with parameters(4,1/2). Find the conditional probability mass function of X given that X is odd

25. ## science

What is the total momentum of the system before the parcel is throrn?

26. ## chemistry

Air is 20.9% oxygen by volume.How many mL of air contains 175 mL of oxygen?

27. ## electrochemistry

How do I determine the standard potential for an aluminum half cell? Can someone please explain to me how I do this? like what are the steps? thanks

28. ## math

Theta taa factroy produces equal number of 1/4kg packets and 1/2kg packets of tea. How many 1/4kg packets were produced from a totol of 45 tonnes of tea.

29. ## math

Theta taa factroy produces equal number of 1/4kg packets and 1/2kg packets of tea. How many 1/4kg packets were produced from a totol of 45 tonnes of tea. Pliz explain

30. ## geometry

m angle 2=6x-2

31. ## anatomy

the nervous system is comprised of what two tissue types??

32. ## Physics

I have to create a teaching aid for physics based on the principles i have learnt like gravitation , mechanical properties and many more. I am not able to find the right experiment to demonstrate infront of my teacher.Please help me deal with this by

33. ## spelling

what does v/cv and vc/v mean

34. ## math

i need to find the answer for 964837 x 465

35. ## math

John checks every 8th item for color, and Colin checks every 12th item for durability. If 1,920 items passed by both of them, how many items were checked by both John and colin? How do I figure this?

36. ## Algebra

Alcohol Consumption In 2004, about 233 million people in the United States were aged 14 or older. They consumed, on average, 2.23 gallons of alcohol per person. Use scientific notation to estimate the total number of gallons of alcohol consumed by this age

asked by Marc Waters
37. ## mathematics

given tha geometric progression x,y,15.find the value of x,find the value of y ?

38. ## maths

Given the G.P 05,0.005,0.0005.find the 7th term, find the sum of the 1st 7th term

39. ## Business Research

1. You are the head researcher on a study that is tracking vocational preferences from high school through middle adulthood. List the steps you would take in selecting the sample to be used in the study. 2. A researcher decides to give a questionnaire on

40. ## Maths

A staight pipe of 20m is their.A man climb it 5m in a day and slips 2.5m in night. so how much days it will take to climb

41. ## Business Research

4. What's wrong with this scenario? An experimenter is interested in better under- standing why some people love fast food and some do not. He stands in the fast-food isle of the market and asks buyers their opinion.

42. ## Business Research

5. What is the difference between a probability and a nonprobability sampling strat- egy? Provide an example of each. Also, what are the advantages and disadvantages of each type of sample?

43. ## Business Research

What is the easiest way to reduce sampling error? What is the relationship between sampling error and the generalizability of the results of a study? Finally, what hap- pens to sampling error as the size of the sample increases? Why?

44. ## Business Research

With a population of 10,000 children (50% boys and 50% girls, 70% white and 30% nonwhite, and 57% single-parent family and 43% dual-parent family), what steps would you use to select a representative sample size of 150?

45. ## Business Research

9. How should a greater amount of variability within groups and a smaller difference between groups affect sample size?

46. ## Business Research

10. Using a table of random numbers, select six names from the following list of 10: Michael Susan Sara Kent Selma Harriet Annette David Sharon Ed How many of the six would you expect to be males, and how many would you expect to be females? Why?

47. ## Business Research

11. What are the implications of using a sample that is too big or a sample that is too small? How big is big enough?

48. ## Maths

a pipe of 20m.a man climb it 5m in a day and slips 2.5m in night. so how much days it will take to climb

49. ## Binomial Theoram

If A be the sum of the odd terms and B the sum of the even terms in the expansion of (x+a)ⁿ. Prove that A² - B² = (x²-a²)ⁿ.

50. ## Binomial Theoram

Show that the coefficient of the middle term of(1+x)power2n is equal to the sum of the coefficients of the two middle terms of (1+x)power2n-1.

51. ## pysical science

an inline roler skate company is testing to see how quickly their new brakes will allow the skater to come to a stop. a skater starting at 8m/s puts on his brakes to come to a stop. it takes the skater 4 seconds to stop. what is the deceleration of the

52. ## maths

Given the G.P x,y,15. Find the value of x and y find the 9th term find the sum of the 1st term

53. ## math

After eight matches a basketball player had scored a mean of 27 points,after another 3 matches his mean was 29,after more 5 matches his mean rose to 32.calculate the total number of points he scored in the last five games.

asked by Monday .U.
54. ## math

Orlando has a bank statement balance of \$414.25 and \$5.90 service charge. His check register shows \$374.16 and he has two outstanding checks of \$26.54 and \$21.78. What is his true balance?

55. ## physical

A crate of mass 20kg is pulled by a force of 100N at an angle 30 above the horizon an friction force of 20N develops between the crate and surface draw a force diagram and free body diagram

56. ## English

I urgently need you to check these sentences. Thank you very much. 1) I received the address of your school from a university student I met during my summer vacation in Madrid. 2) We are currently looking for a school interested in joining us in a

57. ## pre calc

g(1/2)=-(1/2)^2+7(1/2)-7

58. ## chemistry

Cooking bacon till it is "crisp," would be a chemical change correct? Since you are pretty much burning it?

59. ## geology

if a T. rex has a mass of 6.8 metric tons and a density of 0.8 g/cm^3 then calculate the volume of its body in cubic meters.

60. ## chemistry

An electric range burner weighing 614 grams is turned off after reaching a temperature of 499.0oC, and is allowed to cool down to 22.2oC. Calculate the specific heat of the burner if all the heat evolved from the burner is used to heat 565 grams of water

61. ## Calculus

limit of (x+sin(x))/x, as x approaches 0

62. ## Economics

What is labour?

63. ## Chemistry

Benzene burns with intense smoky flame,this is b/c ?

64. ## physics

A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.890 m/s at an angle of 33.6° above the table, and it lands on the magazine 0.0750 s after leaving the table. Ignore air resistance. How thick

65. ## physics

A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.890 m/s at an angle of 33.6° above the table, and it lands on the magazine 0.0750 s after leaving the table. Ignore air resistance. How thick

66. ## chemistry

molality deft with illastration please give information this topic.

67. ## physics

A place-kicker kicks a football at an angle of è = 41.5° above the horizontal axis, as the figure below shows. The initial speed of the ball is v0 = 26 m/s. Also assume that the ball is kicked on the moon instead of on the earth. The acceleration due to

68. ## shabou

Can someone please make a Binarytree of these methodes in Java?: public void add(int element) //Adds the specified element into this datastructure. public void clear() //Removes all of the elements from this datastructure. public boolean contains(int

69. ## physics

An airplane has a mass of 34,500 kg and takes off under the influence of a constant net force of 45,000 N. What is the net force that acts on the plane's 80 kg pilot?

70. ## Chemistry

A certain substance has a heat of vaporization of 34.65 kj/mol. At what kelvin temperature will the vapor pressure be 3.50 times higher than it was at 331 k?

71. ## science

What is the amount of water needed to obtain a saturated solution using 27g of barium nitrate? What mass of water is present

72. ## math

What is the value of point X on the number line?

73. ## math

How many branches will the number 17 have in its completed factor tree?

74. ## math

Clara's pay from her paper route is based on the expression \$15 + \$0.10p, where p is the number of papers she delivers during the wiik. What would her weekly pay be if she deliver 315 papers each week?

75. ## trig

Find the length of side b to the nearest whole number if side a=105,angle A=65 degrees and angle B=37 degrees?

76. ## math

In a basketball free-throw contest held at the high school, Rudy made 4 out 5 free throws. At this rate, how many free throws could he expect to make in 25 tries?

77. ## math

Michelle put \$2000 in a savings account at 1.75 percent interest. She kept it there for eight years. How much interest did she earn?

78. ## math

Fran bought 6 yards of blue tapestry material. She used it to upholster 3 chairs. How much of the material would che need to upholster 7 chairs?

79. ## math

Use (Triangle) PQR with coordinates P(2, –1), Q(0, 5), and R(–2, 0). Which matrix expression can be used to translate (triangle)PQR 1 unit left and 3 units up?

80. ## chemistry

Elemental antiomony made by these reactions down below: Sb2S3 + 5 O2 - > Sb2O4 + 3 SO2 Sb2O4 + 4 C - > 2 Sb + 4 CO how many grams O2 needed to prepare 1.00g of Sb? how many grams Sb formed when 84.9g of Sb2S3 and 39.0g of O2 r used in first reaction and

What's a description of Nicholas II and his Family that would go with the story Animal Farm?

82. ## trig

What is the fundamental period of the function f(x)=4/9sinx

83. ## Algebra

You provide the manager with a quadratic equation that models the expected number of ticket sales for each day x. (x = 1 is the day tickets go on sale). Tickets = -0.6x2 + 12x + 11 . Describe what happens to the ticket sales as time passes. My question is

84. ## math

draw a line 5cm long. Divide it in the ratio 7:3. Measure the longer part

85. ## math

How much money would you have in a savings account at the end of one year, if you saved \$1000 at two percent interest compounded quarterly? Round to the nearest dollar

86. ## general spelling

What is the first letter of zinciferes ?

87. ## CHEMISTRY

DRAW LEWIS, KEKULE AND SKELETAL STRUCTURE OF: (CH3)2NCH2CH3

88. ## math

solve the equation (1/4)^x = (1/8)^2x-1 solve the equation 3^-x+2=27^x-4

89. ## math

Factor completely x(x+1)^2-4(x+1) (2x+3)^2-9

90. ## history

what was the primary goal of president ford's WIN program?

91. ## math

Determine the values of k for which the function f(x)= 4x^2-3x+2kx+1 has two zeros , check these values in the original equation

92. ## math

Which of the following is the solution to the matrix equation below? [0 9 2]  [3 2 1] x= [1 -1 0] [-1] a) [-3 -2 18] b) [-3 2 -18] c) [-3] [-2]  d)[-3]  [-18]

93. ## inventions

Need to come up with an invention

94. ## Biology

Is is all plant that make use of the process ''photosynthesis''? If no, why? if yes, why?

95. ## Chemistry

A sample of steam with a mass of 0.550 g and at a temperature of 100 degrees C condenses into an insulated container holding 4.40 g of water at 5.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the

96. ## physics

A force of 34.5 newtons is applied to an object at an angle of 45 º with the horizontal. What is the force acting on the object in the horizontal direction?

97. ## stat

A survey was conducted to study the relationship between the annual income of a family and the amount of money the family spends on entertainment. Data were collected from a random sample of 280 families from a certain metropolitan area. A meaningful

98. ## English

I urgently need you to check these sentences, please. Thank you. 1) We are going to fix the exact number of both teachers and students to be involved in the project as well as the number of mobilities during our preliminary meeting on Friday 27. That's why

99. ## Calculus

True or false: If f(x) is continuous on the interval [a,b] & if the definite integral of f(x) over this interval has value zero, then the equation f(x)=0 has at least one solution in the interval [a,b]. True or false: If f(x) is continuous everywhere and

100. ## Calculus

Let F(x)=int from 0 to x of (t-3)/(t^2+7) dt for -infinity

101. ## Calculus

Over what open interval does the formula F(x)= int from 0 to x of dt/t represent an anti derivative of f(x) =1/x? Find a point where the graph of F crosses the x axis.

102. ## math

the sides of a polygon have lengths of 2cm,5cm,6cm,4cm,9cm and the perimeter of a smaller polygon is 78cm Find the length of the sides of the larger polygon

asked by the game
103. ## math

If everyone had the same body proportions, your weight in pounds would vary directly with the cube of your height in feet. Assume the average height and weight of a female in your math class is 5'5" and 150 pounds. Use this information to write a variation

asked by montrey sanon
104. ## health

a. anxiety disorders only affect adults over the age of 50. b. workplace losses due to anxiety disorders have increased. c. medical costs associated with anxiety disorders have decreased. d. they are the second most common mental health problem in the U.S.

105. ## English

I left out the following sentences. Can you please have a look at them? 1) The man on the left is wearing a green-and-white kilt, a short-sleeved shirt and a pair of knee-high socks. He is carrying a very high and heavy log (not trunk) with both hands. His

106. ## health

Which of the following is true of psychosocially healthy people? a. They are uncomfortable when put in new social situations. b. They frequently experience guilt. c. They value human diversity. d. They avoid new experiences.

107. ## health

Which of the following statements about schizophrenia is true? a. Schizophrenia can be cured. b. Schizophrenia is a biological disease of the brain. c. Schizophrenia is caused by an environmental factor. d. Symptoms most commonly appear in early childhood.

108. ## health

A spiritually healthy person would a. feel as if they were part of a larger purpose. b. be self-centered. c. believe that they have no control over their lives. d. be materialistic.

109. ## English

Could you please revise this sentence? Thank you. 1) By moblity we mean the transer of every single teacher or student to the partners' country within the two years of the project.

110. ## trig

a. A sector that has been cut out of circular plastic sheet which has a circumference of 12.31 m. If the central angle of the sector is 1/4 of a revolution, find the area of the sector.

asked by rahul patel
111. ## maths

b. The cross sectional area of a cylindrical pin is 38.1 cm2. The pin has a removed segment. If the height of the segment is 7% of the circumference, find the area of the removed segment.

asked by rahul patel

i am researching the prepackaged software industry and i need to find what the future holds for that industry.

113. ## history

I need to write a paper on the history of civil rights in America starting in 1950. Any ideas on where to start in terms of research?

114. ## Chemistry

Consider an atom of Xenon. How many electrons in this atom... a) have the quantum number of l=2 b) have the quantum number of ml=0 c)have the quantum numbers n=5,ml=2 (at the same time) I think I know the answers. a) 10 b)2 c)2 But I am unsure and would

115. ## counseling

Hello, I do have to find a research article on some aspect of human development. what would be some ideas? like brain development. thanks

116. ## human resources

Imagine your business has grown to \$3M+ in sales and 50+ employees. Determine if another form of ownership would be more appropriate. Explain the reasoning behind your decision

117. ## Human Resource

Create a list of best practices customized to your own style of communication in a business setting. Give specific examples of how you could apply the tips and principles in Chapter 5 to become a better communicator.

118. ## English

I'm posting you five sentences but I really don't know if all the words (in parentheses) are possible. 1) .... a green-and-white kilt (?), a white, short-sleeved shirt and a pair of knee-high socks. He is carrying a very high and heavy log (not trunk) with

119. ## math

Kelly opened a savings account with \$500 she received at 8th grade graduation four years ago. The account pays 2.5 percent compounded daily. How much should be in the account now?

120. ## math

f(x) = 4x^2 − x + 3, find f(a+h) I have 4a^2+8ah+4h^2-a-h+3 Is that right so far? and what do I do after that?

121. ## Punctuation & Grammar

She is a pleasant 18-year-old female who states that she was at a pub where she was eating and actually fell while holding a tray and rolled her ankle. A) complete sentence B) fragment C) run-on My first thought is C) run-on, but I always second guess

122. ## math

Shane invests \$7,000 in bonds that earn simple interest of 3%. The interest is payable at the maturity of the bonds after 5 years. Find the total amount that Shane will receive at the end of 5 years.

123. ## physics

the brake linings of the wheels of a car have total mass 4.8kg and specific heat capacity 1200 J kg -1 K-1. calculate the maximum possible temperature rise of the brake linings when the car (of mass 800kg) travelling at 15 ms-1 is brought to rest by

124. ## math

What are the factors associated with math that you need to know about in order to obtain a mortgage loan. List at least five (5) factors and provide a rationale for those you selected.

125. ## math

Frank opened a savings account with \$700 at 4.5 percent interest, compounded quarterly, and kept it in the account for two years. How much was the final amount?

126. ## english

Why do poets use sarcasm in their work? I think that it's so they can get their point across more effectively, but I'm not so sure...

127. ## physics

A 62kg person lies flat on uniform plank of mass 15kg.The plank, with the person lying on it,is placed on a brick at the head and a bathroom scale at the foot,both under the plank.The persons toe to head dist is 1.56m.The length of the plank is also 1.56m.

128. ## math

ms fuller has 2 2/6 pies left over from her party .write the number of pies left over as a fractions greater than 1

129. ## geometry

51. The ﬁgure below illustrates an isosceles right triangle with legs of length 1, along with onefourth of a circle centered at the right-angle vertex of the triangle. Using the result that the shortest path between two points is a line segment, explain

130. ## math

alex family ate 1 7/8 pizzas for dinner .which shows this mixed number written as fractions greater than 1

131. ## math

alex family ate 1 7/8 pizzas for dinner .which shows this mixed number written as fractions greater than 1

132. ## please check

1. Which of the following statements regarding stress and hair loss is NOT true? a. The best treatments for stress induced hair loss are to improve sleep quality, manage stress, and have a healthy dietary intake. b. Stress may cause hair to fall out as a

133. ## English

I urgently need you to check these sentences, too. Thank you. 1) Hi Andrew, how are you? I ‘m very well because I spent a very beautiful weekend with both my family and my friends. 2) On Saturday morning I played tennis with my father whereas in the

134. ## math

51. The ﬁgure below illustrates an isosceles right triangle with legs of length 1, along with onefourth of a circle centered at the right-angle vertex of the triangle. Using the result that the shortest path between two points is a line segment, explain

135. ## math

x2+20x+100=64

136. ## physical science

If a jogger 10 m away from point p and runninp at a constant speed of 2 m's sees the camera at the same instant it starts falling from the ballon,will he be able to catch the camera before it strikes the ground? Use a culculation to show how you arrived at

137. ## Law

The __________ section of the trial memorandum is comparable to the discussion section of an internal memorandum. (Points: 5) argument issues presented statement of facts conclusion is it C

138. ## Misc.

How do you know what township you are in?

139. ## math

Bert is planning to open a savings account that earns 1.6% simple interest yearly. He wants to earn exactly \$160 in interest after 2 years. How much money should he deposit?

140. ## Mousetrap Cars (again)

What is the history of the mousetrap cars?

141. ## math

how we write 5 1over2 i standard form

142. ## English

I left out two sentences. In my next post I will include some of the objectives I'm thinking of including in my project. 1) The woman is wearing a low-necked (two-tone) polka-dot dress, a large blue (sugar cane blue?) boater (straw hat) on her head and a

I have a question-I have to write the verb correctly for these two sentences Did I do them correctly? 1. nosotros/lavarnos Nosotros nos lavamos. 2. yo/ponerme Yo me pongo.

144. ## math

what is the largest prime less than 1000? explain how you got ypur answer

4x+y=5

146. ## Mixed numbers and improper fractions

Improper fraction as a mixed number in simplest form? 29/18

asked by Shamekka teart
147. ## Marketing Management

What do marketers mean when they refer to soci-cultural environments and why do they need to understand these environments in a global marketplace?

148. ## U.S History

explain the debate involved in gibbons v. ogden and the final decision.

149. ## Physics

What is th mass in kg for a 10cm3 cube of ice?

150. ## Physics

What is th mass in kg for a 10cm3 cube of ice?

151. ## Chemistry

What is the complete balanced equation for this partial equation? Mg(s) + HCl(aq) → ?

152. ## Math

The final math grades for all 6th graders were A: 125, B: 200, C: 350, D: 95, and F: 25. Make a bar graph to display this data. In the box below, write a description of your bar graph.

153. ## World History

What are three technological improvements that made widespread exploration possible? Thanks -MC

154. ## Algebra

Write the equation in standard form. (2,8) m=9 What are the steps to do this?

155. ## calculus(Lab)

Well, first graph the graph of f(x)=-1/10x^2 + 3 2. We are going to approximate the area between f and the x-axis from x = 0 to x = 4 using rectangles (the method of Riemann sums). This is not the entire area in the first quadrant, just most of it. Draw

156. ## Social Studies

True or False: The U.S. wanted to avoid war with Britain. I can't find it on Google

157. ## philosphy

How does culture influence the symbolism used in mythology and religious thought?

158. ## College Algebra

How long would it take for a ball dropped from the top of a 400 foot building to hit the ground? Round your answer to two decimal places Use gravity formula

159. ## Chemistry

50.00 mL of OOH was diluted to 250.0 mL with deionized water. In the determination of the total cation concentration, 25.00 mL aliquots of the dilute OOH were passed through a cation exchange column and the eluent titrated with an average 27.42 mL of

160. ## math

p(less than 3 and consonant)

161. ## math

A couple has 4 children ages 9,6,4,and 1.What is the probability that they are all girls.

162. ## Social Studies

In what year did the War of 1812 start? 1812, right? Cause when I search it a lot of different dates show up

163. ## physics

A 62kg person lies flat on uniform plank of mass 15kg.The plank, with the person lying on it,is placed on a brick at the head and a bathroom scale at the foot,both under the plank.The persons toe to head dist is 1.56m.The length of the plank is also 1.56m.

164. ## Pre Algebra

The temperature was 72 degrees F. At midnight a cold front moved in dropping the temperature 12 degrees F. Write a number sentence to show result. I need help! Thanks to anyone helping.

165. ## math

Mr. Garcia is going to pain a mural on one wall. There is a rectangular shaped window that is 24 in. wide and 36 in. high on the wall. How many square feet of the wall will be painted?

166. ## biology

Do living tissues react more like water or more like a buffer?

167. ## math

If I am converting 0.00603 into scientific notation, which would be correct? 6.03 x 10^-3 OR 60.3 x 10^-4 I am a little confused about what to do when there is a zero between two numbers.

168. ## Math

90 oz=____pounds How do you get the answer?

169. ## Math

Please explain to me how to solve: A circular mirror is surrounded by a square metal frame. The radius of the mirror is 5x. The side length of the metal frame is 15x. What is the area of the metal frame? Write your answer in factored form.

170. ## algebra 1

simplify each expression. (-6c^2)(2c^2-3c)

asked by kit kat
171. ## math

Please help me with the following problem, I have veiwed the answers to the other problems like this one and were told they were incorrect: If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is

asked by IN NEED OF HELP
172. ## math

Please explain how to solve: A circular table is painted yellow with a red square in the middle. The radius of the tabletop is 6x. The side length of the red square is 3x. What is the area of the yellow part of the tabletop? Write your answer in factored

173. ## English 3

1. Which sentence states an opinion held by American Romantic writers? a. Cities are centers of corruption and ugliness b. European literature has no traditions worth considering c. Westward expansion is exploitative and dangerous d. Ordinary readers do

174. ## Social Studies

What was the main cause of the War of 1812?

175. ## Social Studies

Who was Tecumseh? He was a Native American leader of the Shawnee and he sided with British. What was written during one of the battles during the War of 1812? We have met the enemy and they are ours. Correct?

176. ## math

not understanding this assignment, it ask, terrence skated 8 feet in 4 seconds at a constant rate, how fast did he skate in feet per second

177. ## geometry

in a parallelogram, consecutive angles aresupplementary. in the parallelogram below angle F measures (6x + 1) degrees and angle G measures (8x +11) degrees. find the numerical measure of both angles.

178. ## Science 7R

What is order of the 7 levels of the classfication system??? I looked in my textbook but it's not there.

179. ## English 7 - Perserverance: Rosa Parks

What are 3 ways did rosa parks showed perserverance????

180. ## Calc

Use the Intermediate Value Theorem to check whether the equation x^3–3x+2.1=0 has a root in the interval (0,1) answer: yes or no ? i have no idea how to answer to go about solving this question, thanks for the help!

asked by UCI STUDENT
181. ## Math

Clark's dog weighs 30 pounds. Matt's dog weighs 450 ounces. Whos dog weighs more? How much more? Clark's weighs more. Clark's weighs more by 2. Correct?

182. ## geometry

If D is the circumcenter. Given DH equals 19, what is DG?

183. ## math

A Grade 2 class was playing Guess My Rule. 12 students were wearing sneakers. 10 students were not wearing sneakers. how many more students were wearing sneakers?

184. ## chemistry

A chemistry student weighs out 0.172 grams of acrylic acid (HCH2CHCO2) into a volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800 moles/liter NaOH solution. Calculate the volume of NaOH solution the

185. ## cemistry

how to identify bond angles

186. ## Social Studies

What was the MAIN cause of the War of 1812? On wikipedia its saying different things and not saying which is the main

187. ## 7th grade Lang. Art

which word in caps makes more sense? Though the colonies long (SEETHE, SINGE) with resentment at the British, the cauldron of their discontent did not boil over into rebellion until 1776. Please help thank you

188. ## Math

What is the first step. Explain please. Which expression is equivalent to cos^2x + cot^2x + sin2^x? a) 2csc^2x b) tan^2x c) cot^2x d) csc^2x cos^2x + cot^2x + sin2^x

189. ## math

if sec theta = 2,what are the other five functions in values of theta?

190. ## math

alex's family ate 1 7/8 pizzas for dinner .which shows this mixed number written as fractions greater than 1 possible answers: 9/8 15/8 16/8 17/8

191. ## Business Finance

Morgan company received from Lee Company an invoice dated September 27. Terms were 2/10 EOM. List price on the invoice was \$5000(freight not included). Morgan recievves a 9/7 chain discount. Frieght charges are Morgan's responsibility but Lee agreed to

192. ## History

What was America’s involvement in the Korean war?

193. ## Physics

Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed to collide into a tumor, killing the malignant cells. Suppose a proton accelerator is 4.21 m long and must accelerate protons

194. ## algebra/functions

If G is an increasing function. what can you say about G(3) - G(-1)?

195. ## algebra/functions

If F is a decreasing function what can you say about F(-2) compared to F(2)?

196. ## English

In act one scene three of Julius Caesar, what are some details in the scene that help build suspense?

197. ## spelling

analogy consonant blend for caught length with word that begins with scr,spr,str or thr

198. ## algebra

INTRODUCTION TO RATIONAL EXPRESSIONS Distance and Time A car is traveling at 60 miles per hour. (a) How long does it take the car to travel 360 miles? (b) Write a rational expression that gives the time that it takes the car to travel M miles

199. ## Physics

In lab tests it was found that rats can detect electric fields of about 5.07 kN/C or more. If a point charge of 1.24 μC is sitting in a maze, how close must the rat come to the charge in order to detect it?

200. ## Bio

Do you guys know of any videos that describe how to tell what bacterias on a slide are bacillus cereus, seratia marsescens, e coli, sarcina lutea and bacillus subtilis? thanks

201. ## Pre-Algebra

Tropical storm Alpha has winds of 50 miles per hour. Write and solve an inequality to find how much the winds need to decrease so that the storm is downgraded to a depression.

asked by Me PLZ HELP!!!! TNX
202. ## algebra 1

simplify each expression. (-6c^2)(2c^2-3c)

203. ## math

Determine the values of k for which the function f(x)= 4x^2-3x+2kx+1 has two zeros , check these values in the original equation

204. ## math

i need help on my homework

205. ## chemistry

hi Does anyone know about Richard Carl Emil Erlenmeyer's friends, his problems, addictions and character? please help

206. ## Physics: Collison/Momentum Problem

A 15 kg mass, moving east at 5 m/s, collides elastically with another 10 kg mass, moving west at 1 m/s. After the collision, the larger mass moves off with a velocity of 3 m/s. What is the final velocity of the smaller mass? Is it 4m/s? Or would it be

207. ## Geometry

The ratio of the side lengths of a triangle. Is 2:4:5 and the perimeter is 55 cm. What is the length of the shortest side?

208. ## physics

a bee flies 12m north, 8m west, and then 4m south, what is the displacement

209. ## physics

A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is

210. ## Calculus-Related Rates

Three elementry kids are at a field day hula hoop contest. They were the last one standing of the heated competition. They have been hula hooping for 10minutes. Student1 (S1) is at point (6,5); Student2 (S2) is at point (6,1) while student 3(S3) is at

211. ## physics

A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is

212. ## chemistry

A closed container with a mixture of hydrogen, helium, and argon has a total pressure of 2.90 atm. The partial pressure of hydrogen is 0.500 atm and the partial pressure of argon is 760. mm Hg. What is the partial pressure of helium?

213. ## chemistry

Determine the theoretical and percent yield of hydrogen gas if 78.5 g water undergoes electrolysis to produce hydrogen and oxygen and 3.63 g hydrogen is collected?

214. ## science

answer to 5th grade science question: a man is in a boat and he loses his paddles, he has 10 fish, a beach ball, and 2 sandwiches with him, how does he get back to shore without getting wet?

215. ## calculus

Use the disk or the shell method to find the volume of the solid generated by revolving the region bounded by the graphs of the equations about each given line. y = x3 y = 0 x = 3 the x-axis,the y-axis,and the line x = 4

216. ## social studies

What role did the Bill of Rights play in convincing the states to ratify the Constitution?

217. ## physics

The specific heat of mercury is .03cal/g*C, and it's boiling point is 357*C. The specific heat of water is 1 cal/g*C. It takes 65 calories of energy to vaporize one gram of mercury and 540 calories to vaporize one gram of water. If both substances begin at

218. ## social studies

What was the original purpose of the Constitutional Convention?

219. ## geometry

Lines M and T are parallel with a Transversal line P. [Labeling for the angles on line P intersecting M are, top right corner is angle 1, the top left is angle 2, the bottom left is angle 3, and the bottom left is angle 4. This pattern {top left, top

220. ## Spanish

Coud someone please check my answers to the questions? 1.¿Qué apagas cuando tienes frío? Apago la ventiladora cuando tengo frío. 2.¿Dónde están las cosas muy frías en tu cocina? Están en el refrigerador. 3.¿Qué usa tu madre para cocinar? Ella

221. ## Physics

In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.71 x 105 N/C during the first 5.49 cm of the tube's length; then they move at essentially constant velocity another 47.9 cm before hitting the

222. ## Science

An aqueous solution of calcium chloride boils at 101.3. How many kilograms of calcium chloride were dissolved in 1000 g of the solvent?

223. ## Math

Find 9.62 x 1.005. Can you please show me step by step because I keep getting the wrong answer. Thanks.

224. ## Math

Rebecca gives gifts to 12 employees. Each gift is in a box that is 12 inches by 10 inches by 3 inches. How much wrapping paper does Rebecca need to completely the cover the boxes? F. 360 in(insert exponent 2) G. 1,720 in(insert exponent 2) H. 4,320

225. ## Physics

Some forms of cancer can be treated using proton therapy in which proton beams are accelerated to high energies, then directed to collide into a tumor, killing the malignant cells. Suppose a proton accelerator is 4.21 m long and must accelerate protons

226. ## physics

Olympic swimmers can swim at a speed of 1.7 m/s. If an Olympic swimmer were swimming in the ocean on a day when the wavelength of the waves was 20m and the frequency was 1 Hz, would the swimmer be able to swim fast enough to avoid being lifted by a wave?

227. ## Math

Solve (sinx-1)(cosx -1/2) = 0 where 0≤x

228. ## social studies

i need help for writing essay on my state nj

229. ## physics

A dime is 1.8 cm in diameter. Earth's moon is 3.844´1010 cm from Earth and has a diameter of 3.76´108 cm. At what distance from your eye would you have to hold a dime so that it has the same angular diameter as the full moon?

230. ## algebra

Jenny is 5ft 2in. tall. To find the height of a light pole, she measured her shadow and the pole shadow What is the height of the pole?

231. ## Maths

In how many places does y=4x^2-2x-5 cross the x axis?

232. ## math

you deposit \$2200 in an account that pays 3% annual interest. after 15 years, you withdraw the money. what is the balance if the interest is compounded continuously?

233. ## social studies

to ms sue, i want some points on what to write what my state means to me

234. ## physics

Sound travels around 340 m/s in air. If a bat squeaks and hears the echo of its squeak return to it 6 seconds later, how far away is the insect which the bats squeak encountered? This question doesnt even make sense to me!! Does anyone have a formula that

235. ## Pre cal

3Square root of 2 cosine theta equals -1

236. ## physics

Two sounds, one of 200 Hz and one of 194 Hz occur at the same time. What beat frequency do you hear? Show your calculations I'm not looking for someone to do my homework for me. I just don't know what formula to use to figure it out.

237. ## 8 Grade Math

At the same time that a flagpole casts a 4.5 m shadow , a meter stick casts a 1.5 m shadow. How tall is the flagpole ?

238. ## Health

Do you think that all six dimensions of health are equally important? Why or why not?

239. ## college calculus

use the definition of derivative to prove that lim x->0 [ln(1+x)]/[x] = 1

240. ## Geography

I need a website with good information about the Tipitapa River in Nicaragua. All I've been getting is that it connects Lake Managua and Lake Nicaragua.

241. ## Calculus

Derive the integral of cos^n (x) dx= (1/n)cos^(n-1) (x) sin(x)+((n-1)/n)(integral of cos^(n-2) (x) dx

242. ## Algebra 2

Solve each equation by graphing. Where necessary, round to the nearest hundredth -x^3+3x+4=0

243. ## Algebra 2

Solve each equation by graphing. Where necessary, round to the nearest hundredth x^4+2x-3= 0

244. ## Algebra 2

Solve each equation by graphing. Where necessary, round to the nearest hundredth -x^3+2x^2+1=0

245. ## Chemistry

Heating an ore of antimony (Sb2S3) in the presence of iron gives the element antimony and iron(II) sulfide. Sb2S3(s) + 3Fe(s) ---> 2Sb(s) + 3FeS(s) When 15.0 g Sb2Sb3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the percent yield of this

246. ## Math 4th Grade

Adult Tickets are \$5 Child Tickets are \$2 There are twice as many children as adults at the concert. The total amount collected was \$1,080. How many adults are at the concert?

247. ## Math

Is the sum of the measure of all the angles that come together in the center of a circle the same for every circle

248. ## Math

Ms. Ervine has a basket of grapes. If she gives 6 grapes to each of her students, she will have 2 grapes left. If she gives 7 grapes to each of her students, she will have to buy 11 more grapes. A) How many students does Ms. Ervine have? B) How many grapes

249. ## Algebra

How do you solve(factor):: 1/3(3x-6)^3+4

250. ## Algebra

A line intersects the graph of y= x^2 twice. One point has an x- coordinate of -4, and the other point has an x-coordinate of 2. A) Draw a sketch of both graphs, and find the equation of the line. B) Find the measure of the angle that the line makes with

251. ## Algebra

A line intersects the graph of y= x^2 twice. One point has an x- coordinate of -4, and the other point has an x-coordinate of 2. A) Draw a sketch of both graphs, and find the equation of the line. B) Find the measure of the angle that the line makes with

252. ## physics

Two friends, Al and Jo, have a combined mass of 171 kg. At an ice skating rink they stand close together on skates, at rest and facing each other, with a compressed spring between them. The spring is kept from pushing them apart, because they are holding

253. ## Algebra II

1. A sound has an intensity of 5.92 „e 1025W/m2.What is the loudness of the sound in decibels? Use . 2. Suppose you decrease the intensity of a sound by 45%. By how many decibels would the loudness be decreased?

254. ## physics

By what factor is the kinetic energy increased when the speed of a car is increased from 21 km/h to 98 km/h?

255. ## Math

1. -6x + 5 + 12x -6 2. 2(x - 9) + 6(-x + 2) + 4x 3. 3x2 + 12 + 9x - 20 + 6x2 - x Answers: 1.6x - 1 2.-6 3.9x2 + 8x - 8

256. ## geometry

you want to estimate the radius of the towns circular water tank. you stand at point c, about 6 feet from the circular tank. the distance from you to a point of tangency on the tank is about 10 feet. estimate the radius of the tank

257. ## Math

How many solutions does the equation cosx + 1/2 = 1 have for 0

258. ## physics

A 0.579 kg basketball is dropped out of a window that is 6.22 m above the ground. The ball is caught by a person whose hands are 1.31 m above the ground. How much work is done on the ball by its weight?

259. ## Business English

Which of the following statements most effectively applies you-attitude? "We began processing your application today." "Your application is now being processed." "We will have your application processed by next Thursday." "Your application will be

How many years would it take for money to triple in value at 20% per year simple interest?

261. ## college algebra

9x^-4-35x^-2=0

-4(3y-4)+12y

263. ## English

"You can't qualify for a Home Beautiful credit card until you are 18 years old." Indicate the alternative that both correctly evaluates the sentence and correctly explains the reason for the evaluation. a. Good you-attitude because it begins with the word

264. ## Algebra 2

Evan spent the summer earning money so he could buy the classics car of his dreams. He purchased the car for \$2,295 from Fast Deal Freddie, the local used car salesman. Freddie told Evan that the car would increase by half its value after five years. Evan

265. ## College Algebra

9x^-4-35x^-2-4=0

266. ## Quantitative analysis

If we produce 350 units of output, the total cost is \$11,500. It costs us \$12,900 to produce 420 units. If we assume the relationship is linear, determine the cost function.

267. ## trig

Find y if the point (7, y) is on the terminal side of θ and cos(θ) = 7/25

268. ## calculus

Use the disk or the shell method to find the volume of the solid generated by revolving the region bounded by the graphs of the equations about each given line. y = x3 y = 0 x = 3 a)the line x = 4

269. ## Language arts

In Richard Brautigan's poem "All Watched Over by Machines of Loving Grace", what kind of figures of speech does he use? I know one of them is sarcasm, but I can't figure out if there are any more...

270. ## physics

Sound travels around 340 m/s in air. If a bat squeaks and hears the echo of its squeak return to it 6 seconds later, how far away is the insect which the bats squeak encountered? This question doesnt even make sense to me!! Does anyone have a formula that

271. ## calculus

Find the arc length of the graph of the function over the indicated interval. (Round your answer to three decimal places.) y = (2/3)x^(3/2) +7 ;[0,6]

272. ## physics

Olympic swimmers can swim at a speed of 1.7 m/s. If an Olympic swimmer were swimming in the ocean on a day when the wavelength of the waves was 20m and the frequency was 1 Hz, would the swimmer be able to swim fast enough to avoid being lifted by a wave?

273. ## philosophy

what makes an idea dangerous?

274. ## 7th grade Lang. Art

Which word in caps makes more sense? Every year the professional football season (CULMINATES, BROODS) in the super bowl. Please help thank you

275. ## math

find all solution sets to the equation 2x^3+12x^2+50x=o

276. ## Math

Please help me with the following problem, I have submitted the answer: 88.2 and was told that it was incorrect. The word problem reads: If you do not consider air resistance, gravity causes a falling object to descend a distance of (9.8)t2 where t is the

277. ## physics

what is the final temperature when a 3.0 kg gold bar at 99 degrees Celsius is dropped into 0.22 kg of water at 25 degrees Celsius?

278. ## Physics

Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net force acting on the body?

279. ## calculus

Eight and one-half foot-pounds of work is required to compress a spring 3 inches from its natural length. Find the work required to compress the spring an additional one-half inch. (Round your answer to two decimal places.)

280. ## chem

a considerable amount of heat is required for the decomposition of aluminum oxide. 2Al2O3-> 4Al(s)+ 3O2(g) change in heat= 3352KJ a. what is the heat change for the formation of 1 mol of aluminum oxide from its elements? i got this one. my answer is

281. ## Chemistry

Fill in the missing information in the following table of four neutral atoms Symbol- 37Cl number of protons- 36 46 number of neutrons- 42 number of electrons- 33 mass number- 77 106

282. ## Physics

Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net force acting on the body?

283. ## Algebra II

Working on my online math homework, I encountered this problem: Solve: (3x^-1 y^-2)^-2 (x^2 y^5)^-1 [[Spaces denote the end of the exponent.]] Because of the law of exponents that deals with negative exponents, I did the reciprocal and distributed the

284. ## math

what does unit rate mean?

285. ## trig

find two values of theta, zero degrees is than or equal to theta which is less than 360 degrees, that satisfy the given trigonometric equation. tan theta equals radical 3.