# Questions Asked onJanuary 28, 2010

1. ## phys

1) Pf(x)= f(-x), p operator Find the eigenvalues and eigenfunction of p 2)Show [f(xop), d/dx] = - df/dx

2. ## Word Problem

The function H described by H(x)= 2.75x + 71.48 can be used to predict theheight in centimeters, of a woman whose humerus(the bone from the elbow to the shoulder) is x cm long. Predict the height of a woman whose humerus is 35 cm long.

3. ## economics

Construct a production possibilities curve, be sure to properly label the axes.

4. ## algebra

Trains A & B are traveling in the same direction on a parallel tracks. Train A is traveling at 60 mph and train B is traveling at 80 mph. Train A passes a station at 5:15 PM. If train B passes the same station at 5:30 PM, at what time will train B catch up

5. ## chemistry

whats the difference between abbreviated eleectron configurations and complete eleectron configurations? if you can, please give an example, because i don't really get it.

6. ## physics

Three forces are applied to an object. Force 1 has a magnitude of 22.0 newtons (22.0 N) and is directed 30.0° to the left of the +y axis. Force 2 has a magnitude of 15.0 N and points along the +x axis. What must be the magnitude and direction (specified

7. ## psychology

intelligence vs wisdom

8. ## Calculus

A car drives down a road in such a way that its velocity (in m/s) at time t (seconds) is v(t)=3(t^(1/2))+4. Find the car's average velocity (in m/s) between t=4 and t=6.

9. ## physics

Find the direction of the vector represented by the following pair of components: Ax= -3.15 m, Ay= 6.85 m. Find theta measured from the +x direction I don't know where to begin on this, could anyone guide me or give me steps?

10. ## chemistry

A stock solution was prepared by dissolving exactly 0.4000 g of pure ASA (180.16 g/mol) in 10.00 mL of NaOH and heating the solution to a gentle boil. After cooling to room temperature, the solution was poured into a 250-mL volumetric flask and diluted to

11. ## Algebra

i need help with graphing inequalities ex: y < 4 + x

12. ## Calculus

R is the region in the plane bounded below by the curve y=x^2 and above by the line y=1. (a) Set up and evaluate an integral that gives the area of R. (b) A solid has base R and the cross-sections of the solid perpendicular to the y-axis are squares. Find

13. ## CRT 205

Good morning Ms. Sue: Can you help me identify what type of fallacies these are? I'm having some difficulties. Thank you kihdly. 5. Letter to the editor: “I strongly object to the proposed sale of alcoholic beverages at County Golf Course. The idea of

asked by Lyric Cannon
14. ## MAT/116 Algebra

Find the slope and y-intercept. f(x)= -7x-3 the slope is = The y-intercept is (0, )

15. ## math

The percentage of working mothers y can be modeled by the equation y=0.0102x + 0.644 where x is the number of years since 1990. In what year will 90% of mothers be in the labor force?

16. ## English

Can you check the following two paragraphs please? Thank you in advance 1) Last year, on Christmas Day, my relatives came to my home (house) for lunch. At the end of the lunch my mum stood up to go the kitchen to get the dessert. She was talking and she

17. ## Spanish

Don't understand differences between lo, la, le

18. ## calculus II university

prove the following integrals: a)sin3xcos7xdx = -1/20cos(10x)+1/8cos(4x) b)sin8xcos3xdx = -1/22cos(11x)-1/10cos(5x)

19. ## sosial

education women and country development are closely related

asked by santosh acharya
20. ## social study

colonial america

asked by josh beety
21. ## Calculus

Match each polar equation below to the best description. Each answer should be C,F,I,L,M,O,or T. DESCRIPTIONS C. Cardioid, F. Rose with four petals, I. Inwardly spiraling spiral, L. Lemacon, M. Lemniscate, O. Outwardly spiraling spiral, T. Rose with three

22. ## Calculus

Find the length of the entire perimeter of the region inside r = 16sin(theta) but outside r = 4.

23. ## cjs220

Write a minimum 450 word response addressing the following points: o Compare and contrast two theories on the causation of crime. o Using the crime of homicide – compare the difference in crime rates (per 100,000 people) between your current city and New

24. ## SOCIAL STUDIES

THIS IS ABOUT EXPLORERS. WHAT IS A JOURNEY MADE FOR A SPECIAL REASON?

25. ## physic

How long (in ns) does it take light to travel 1.00 m in vacuum? What distance does light travel in water during the time that it travels 1.00 m in vacuum?

26. ## English

Could you check these two paragraphs for me, please? Thank you 1) Many years ago, when my uncle was only six years old, while he was playing on the balcony, which was on the second floor, one of his toys fell down and crashed on the ground. He wanted it

27. ## math

Sal borrowed \$2,000 for six months at 11.5% simple interest. What was the total amount he had to repay?

28. ## physic

A laser beam in air is incident on a liquid at an angle of 40.0^\circ with respect to the normal. The laser beam's angle in the liquid is 25.0^\circ.What is the liquid's index of refraction?

29. ## PHSICS

A laser beam in air is incident on a liquid at an angle of 40.0^\circ with respect to the normal. The laser beam's angle in the liquid is 25.0^\circ.What is the liquid's index of refraction? PLEASE HELP!!!

30. ## english

what was shakespeares best play?

31. ## calculus

When using the substitution method to solve a nonlinear system of equations, you should first see if you can _____ one variable in one of the equations in the system.

32. ## consumer math

Megan bought a car for \$12,500. She made a down payment of \$3,500 and financed the rest. If she made 48 payments of \$240 each, how much interest did she pay?

33. ## Finance Basic Interest

The effective monthly equivalent of 4% compounded semi-annually is ___. 0.04/12 = 0.00333 = 0.333% Is this correct?

34. ## biology

All living things reproduce using ________.

35. ## sew

what does the term disposing of fullness means

36. ## English

Thank you very much for the help. Can you check these two other paragraphs, please? 1) Once, last year, I was (too?) late for school and I had to run to catch the bus. But the day before it had snowed a lot and that morning the road was icy. (While I was

37. ## 8th math

How many ways can seven basketball players of different heights line up in a single row so no player is standing between two players taller then herself?

38. ## algebra

Solve the following system of equations x+4y=3(1) x=6-4y (2)

39. ## math

Carlos Martin received a statement from his bank showing a balance of \$56.75 as of March 15th. His checkbook shows a balance of \$87.37 as of March 20. The bank returned all the cancelled checks but two. One check was for \$5.00 and the other was for \$13.25.

40. ## Maths

Please could I have some guidance and advice on the following question? A multiple choice question has 4 options, A,B,C and D. The numbers of students choosing the options are in the ratio 3:1:2:14. I need to calculate the number of students choosing each

41. ## College Algebra

solve using the elimination method x-7y=46 2x-7y=43

42. ## College Algebra

Translate the problem into a pair of linear equations in two variables. Solve the equations using either elimination or substitution. State your answer for both variables. The perimeter of a rectangle is 72m. If the width were doubled and the length were

43. ## Biology

14. Surface area is an important factor in limiting growth cell because a. the cell may become too large to remove enough wastes. b. materials can't enter the cell if it's too large c. the cell can burst if the membrane becomes too large d. waste products

44. ## Word Play

What are some good one word names. Using Interest and Entrepreneur

45. ## Earth Science

Which of the following help create volcanoes? plate tectonics landslides cracks in Earth's crust built up magma

46. ## calculus

prove the following integrals: a)sin3xcos7xdx = -1/20cos(10x)+1/8cos(4x) i know i have asked this question before but i am very confused bobpursley, can you please show me the steps of proves. thanks in advanced

47. ## social studies

What are the main tenets of Confucianism?

48. ## College Algebra

Translate the problem into a pair of linear equations in two variables. Solve the equations using either elimination or substitution. State your answer for both variables. An orchard operator must dilute 11 quarts of a 60% insecticide solution by adding

49. ## social studies

What is the treaty port system in East Asia?

50. ## International Business

Do you think Proposition 200 might affect the U.S. economy if it is widely adopted throughout the country? Why or why not?

51. ## health

What are the interrelations of blood clotting, immune response, allergic reaction, and hormone release. I have been trying to figure this out for 3 days now. Please help! Thank you.

52. ## biology

imagine if you are a water molecule outside of an animal cell of a human.the person just drunk the glass.write a persuasive letter to the cell membrane convincing it to let you inside the cell.

53. ## american literature

what are three features of a lyric poem ? explain how "Song Concerning a Dream of the Thunderbirds uses these features. Imagination, Emotion, and Melody how are they used

54. ## Math!

Wasim is paid on a graduated scale of 5% on the first \$10,000 of sales in a month, 7% on the next \$25,000, and 9% on all additional sales. a)What will he be paid in a month in which sales are \$62,760? (round the answer to the nearest cent.) b)What fixed

55. ## Bus/210

• Write a 200- to 300-word description of a business scenario, either real or fictional, that depicts each of the following forms of business organization: • o Joint-stock company o Limited liability company o Partnership o Sole proprietorship

56. ## physics

A runner traveling with an initial velocity of 3.0 m/s accelerates at a constant rate of 1.7 m/s2 for a time of 3 seconds. What distance does the runner cover during this process?

57. ## geography

6 ways the geography helped the civilization grow

58. ## math

When is the quotient of two monomials a monomial?

59. ## LAL

are these sentences right? comparative/superlative Adjectives 1 It spurts a stream of hot steaming water HIGHER than 100ft into the air 2 This MOST splendid geyser erupts from every half hour to every 2 hours. 3 For many visitors of yellowstone , seeing

60. ## Physics

A parallel-plate capacitor made of circular plates of radius 55 cm separated by 0.25 cm is charged to a potential difference of 1000 Volts by a battery. Then a sheet of tantalum pentoxide is pushed between the plates, completely filling the gap between

61. ## social science

o Provide a one-sentence description of typical precipitation and temperature for summer and winter

62. ## math

what is the value of y- coordinate of the solution to the system of equation x + 2y = 9 and x- y= 5

63. ## geometry

in the accompanying diagram of circle O,chords AB and CD intersect at E. If AE=3,EB=4,CE=x, and ED=x-4,what is the value

64. ## MATH!

If the Canadian dollar is worth 49% less than the U.S. dollar, then the US dollar is worth what percent more than the Canadian dollar? (Round the answer to the nearest hundredth of a percent).

65. ## arithmetic

ROUND 4.46 TO THE NEAREST TENS PLACE

66. ## math

In how many ways can 7 people be lined up to see a movie if Ben must be at the start of the line? is the answer 720?

67. ## health

the ability to gather, understand, and use health information to improve your health

68. ## math

ok it says to solve each inequality and graph the solutions. T-3>5 and theres a number line from 10 to -10 plz help

69. ## College Algebra

Determine the x- and y-intercepts of the given equation. Show your work y = x + 4

70. ## College Algebra

Determine the x- and y-intercepts (if any) of the given equation. Show your work. y = - 4x + 6

71. ## CP Algebra

3x^2-6x-24 __________ 3x^2+2x-8 this is just simplifying multiplying and dividing i got this far: (3x 2)(x 12) ___________ (3x-2)(x+4)

72. ## CP Algebra

15y^2-30y-45 ____________ 5y^2+10y-15 this is simplifying multiplying and dividing i got this far: 15(y^2-2y-3) 15(y+1)(y-3) ___________ = ___________ 5(y^2+2y-3) 5(y-1)(y+3) then i simplified the 15 to 3 and the 5 to 1

73. ## algebra1

solve word problem zelma is eighteen years older than her son she was three times as old as he was one year ago how old are they now

74. ## spanish

answer the questions in spanish: 1.¿Qué enciendes cuando tienes calor? 2.¿Qué apagas cuando tienes frío? 3.¿Qué usas en tu cama cuando hace frío? 4.¿Dónde están las cosas muy frías en tu cocina? 5.¿Dónde está tu ropa? 6.¿Qué hay en las

75. ## 6th grade

how to do unit rates

76. ## geometry

List the following elements in proper set notation. Place the elements in numerical order within the set. * 0 * 1 * 123 * 4 * 34

asked by Amy S
77. ## algrebra

P=S1 + S2 +S3 for S2

78. ## math

a movie theater charges \$7 for an adult's ticket and \$4 for a child's ticket. on a recent night the sale of child's tickets was three times the sale of adult's tickets. if the total anount collected for ticket sales was not more than \$2,000, what is the

79. ## English Gr.5

Draw one line under each action verb and 2 lines under each linking verb. Sentences with linking verbs, circle the word and the predicate that renames or describes the subject. Write noun pronoun for adjectives in the blank to describe the word. In

asked by English helper
80. ## Physics

If you are given many closed sacks filled with different amounts of identical marbles, how could you determine the weight of a single marble without opening the sacks? (Assume the weight of the sack material can be ignored.) The only thing I could think of

81. ## math

subtract the quotient of 18 and 2 from the sum of 22 and 9.

82. ## physics

A man can throw a ball a maximum horizontal distance of 149 m. The acceleration of gravity is 9.8 m/s2 . How far can he throw the same ball verti- cally upward with the same initial speed? Answer in units of m.

83. ## Biology

3. Which of the follwoing statements about sexual and asexual reproduction is FALSE? a. genetic diversity occurs in sexual reproduction b. asexually reproducing organisms can repair their own DNA c. there are no special reproductive celss in asexual

84. ## Algebra

Solve y=1/4x-1 if the domian is (-4, -2, 0, 2, 4) Please help me answer thank you for in advanced!

85. ## math

2xsquare- 8x - 42 over 6x square divided by x square - 9 over x square - 3 x

86. ## english

The fire truck and the ambulance sped to the site of the train wreck. is it a simple sentence,compound sentence, run-on sentence or sentance fragment

87. ## Math

The land area of present-day Texas is about 7/20 the present-day land area. What percent of the land area of Mexico is Texas.

If you are given many closed sacks filled with different amounts of identical marbles, how could you determine the weight of a single marble without opening the sacks? (Assume the weight of the sack material can be ignored.) The only thing I could think of

89. ## 5th Grade Science

Okay here is my question: What is the best way to model how heavy rains and floods can change rocky land? Thank you

90. ## ENGLISH!

In what part of speech is "concert" being used as? "Our share of the responsibility for what we do individually or in concert with others varies with social and political structures..."

asked by Happy Face
91. ## Chem

How do you determine if a bond is non-polar covalent or polar covalent or ionic?

92. ## 6th Grade math

The Odgen School marching band has 91 musicians. If there are 7 student musicians in each row, how many rows are there?

93. ## math

i have three packages

94. ## math

how to solve a graph plot

95. ## Math

Which pair of numbers is equivalent to 47.5% A. 457/100, 0.475 B. 475/100, 475 C. 475/1000, 4.75 D. 475/1000, 0.475

96. ## Economic

The word equity means A.equality B.fairness C.justice D.profitability I think the answer is B

97. ## algebra

Area of a painting. A rectangular painting with a width of x centimeters has an area of x2  50x square centimeters. Find a binomial that represents the length. See the accompanying figure.

98. ## Math

How do you do this problem. Thanks for your help. 4(2m+3)=-3(m-1)+7

99. ## economic

In a capitalist system, most property is A.private property B.owned by the government C.regulated by the government D.owned by banks I think the answer is A

100. ## Math

If the sum of two angles of a triangular garden in West Lafayette is 132 degrees. What is the measure of the third angle in degrees?

101. ## Math

The directions for this problem is to simplify the equation using like terms. I'm confused. 3(2t-9)-2(5t-3)

102. ## science

what does it mean for a system to be dynamic?

103. ## statistics

Show that for all three distributions (Binomial, Poisson and Geometric) the probability of finding at least one ace is around 55%

104. ## math

what is the natural logarithm of (4x-1)=36

105. ## Math

A motorist travels 108km in 2hrs 15mins. if she travels at a steady speed, find how far she goes in 1 hour. PLEASE SHOW ALL WORKING

106. ## math

say i played a game against someone. scores: 189 208 255 234 214 176 197 254 203 199 219 216 193 211 me other person who won more games. please show me how to solive it please.

107. ## math

find all possible values of x such that, when the five numbers x, 14, 11, 6, 17 are arranged in order, the mean is equal to the median

108. ## math

Express the function f(x) = −[ 1/3]x^2 + 2x + 3 in the form f(x) = a(x + p)^2 + q by completing the square: f(x) = −[ 1/3]x^2 + 2x + 3

109. ## math

find all possible values of x such that, when the five numbers x, 14, 11, 6, 17 are arranged in order, the mean is equal to the median

110. ## math

Express the function f(x) = −[ 1/3]x^2 + 2x + 3 in the form f(x) = a(x + p)^2 + q by completing the square: f(x) = −[ 1/3]x^2 + 2x + 3

111. ## Science

How can u predict if a bond will be ionic, covalent or polar covalent? i know that its the difference between electronegativities, but i cant seem to find the numbers it has to be between for each. I'm also getting confused because isnt covalent the same

112. ## Algebra

Jim's Brakes charges \$25 for parts and \$55 per hour to fix the brakes on a car. Myron's Auto charges \$40 for parts and \$30 per hour to do the same job. What length of job in hours would have the same cost on both shops?

113. ## English 101

Does this sentence contain a misplaced or dangling modifier? The storm did not prevent the undaunted crew from setting sail as planned.

114. ## Algebra

can you please help me with a math problem? -3xy^2 + 3x2y -2y^3 = xy + 2

115. ## SF Schools

How do I evaluate: d2 (squared)-3ab d= -4, a= .5, b= -2

116. ## math

In how many ways can 7 people be lined up to see a movie if Ben must be at the start of the line? is the answer 720?

117. ## 8th grade math

Carlos and maria drove a total of 258 miles in 5 hours. Carlos drove the first part of the trip and averaged 53 miles per hr maria drove the remainder of the trip and averaged 51 miles per hr for how many hrs did maria drive

118. ## earth science

if you didn't know these cities were all cities of the United States, how could you tell from the temperature curves that they were all in the Northern Hemisphere?

119. ## Technology

Short answer question: #22. Describe the three steps required to make steel. My answer: There are three steps required to make steel, which include: Iron smelting, Steelmaking, and Steel finishing. The first step, iron smelting, produces pig iron which is

120. ## Technology

Short answer question #23. Briefly explain the four stages of making an expendable mold casting. My answer: There are four stages in making an expendable mold casting. The first is making the pattern. In the second step, the pattern is surrounded with sand

121. ## math

what is e^2x=12

122. ## science

two common ways in which a glacier can cause ersion?

123. ## math

amy sloved 3/5 of her math problems and had 24 left to do. how many problmes did she solve ?

124. ## Personal Finance

The Lees, a family of two adults and two dependent children under age 16, had a gross annual income of \$68,000 for 2007. Determine their standard deductions, exemption, and child tax credit amounts, as well as their marginal and average tax rates assuming

125. ## Science

Before 1937, all naturally occuring elements had been discovered, but no one had found any trace of element 43. Chemists were still able to predict the chemical properties of this element (now called technetium), which is widely used today for diagtnosing

126. ## Math

Karl needs to complete 50 laps in the swimming pool to earn a prize. He has completed 24 laps. What percent of the laps required for the prize that karl completed?

127. ## math

tim and jim shared 35\$ in the ratio 4:3 .how much did tim get ?

128. ## 7th grade math

Scott deposits \$1,000 in an account that earns 5% simple interest. What will the account be worth after two years?

129. ## Chemistry

Approximately how many grams of NaNo3 will dissolve in 100g of water at 20 degrees Celsius?

130. ## 9th grade

how do you start this problem x/x+2=4/5,x=-2

131. ## math

what is 313 divided by 3

132. ## chemistry

how do i name the ionic compound bythis formula (NH4)2Cr2O7

133. ## physics

if you wished to warm 100 kg of water by 15 degrees celsius for your bath, how much heat would be required? (give your answer in calories and joules)

134. ## 8th grade algebra

A train load of cars and trucks is en route to an automobile dealer for whom you work. Before they arrive, the dealer receives an invoice showing a total of 160 vehicles. Unfortunately, the part of the invoice showing how many of each kind of vehicles has

135. ## environment

How can experienced security professionals prepare themselves for challenges and opportunities they have never encountered before?

136. ## algebra

find the value of x so (x,-3) is collinear to (6,7) and (-2,-5). Show all work.

137. ## Algebra

The ages of three brothers are consecutive even integers. Three times the age of the youngest brother exceeds the oldest brother’s age by 48 years. What is the age of the youngest brother?

138. ## Math (again)

how do I solve 4.1 divided into 68.3?

139. ## chemistry

If 6.38 g of a polyethylene glycol is dissolved in 7550 ml of water at 300 oK, the solution has an osmotic pressure of 0.171 torr. Calculate the molar mass (g/mol) of the polyethylene glycol.

140. ## algebra

need help with this problem can someone help me? "At the end of the week one, a stock had increased in value from \$5.75 a share to \$7.50 a share. Find the percent of increase at the end of week one to the nearest tenth of a percent. At the end of the week

141. ## Probability

The local ice cream stand offers three flavors of soft-serve ice cream: vanilla, chocolate, and strawberry: two types of cone: sugar and wafer: and three toppings: sprinkles, nuts, and cookie crumbs. If Dawn does not order vanilla ice cream, how many

142. ## spanish 2

How do you say these sentences in spanish in past tense. The dog took the letters to the mailbox. The dog is driving to the mailbox. The dog is reading the letter.

143. ## math

When a boy pulls his sled with a rope, the rope makes an angle of 70 with the horizontal. If a pull of 16 pounds on the rope is needed to move the sled, what is the horizontal component force?

144. ## cjs220

Could someone please help me i been working on this all day its due today and im not no where near done contrast and compare two theories Choice Theory and Sociological theory

145. ## human resources

As the company bookkeeper reviewing delinquent accounts receivable, you find that a relative of yours has not paid his account amounts of \$550. You know that he has been experiencing financial difficulties, and so you set his account aside and do not

146. ## Biology

3. Which of the follwoing statements about sexual and asexual reproduction is FALSE? a. genetic diversity occurs in sexual reproduction b. asexually reproducing organisms can repair their own DNA c. there are no special reproductive celss in asexual

147. ## chemistry

A 4.14 m solution of the solute methylene chloride dissolved in the solvent ethanol is available. Calculate the mass ( kg ) of the solution that must be taken to obtain 1487 g of methylene chloride. CH2Cl2-1327 (kg/m^3) C2H5OH-789.3 (kg/m^3)

148. ## chemistry

A 4.58 m solution of the solute methylene chloride dissolved in the solvent acetone is available. Calculate the mass ( kg ) of the solution that must be taken to obtain 0.8848 kg of methylene chloride. density: CH2Cl2-1.327 (g/mL) (CH3)2CO-0.7899 (g/mL)

149. ## FIN 200 AXIA COLLEGE

NEED HELP WITH FIN 20 WEEKS 5 THRU 9

150. ## chemistry

A 4.14 m solution of the solute methylene chloride dissolved in the solvent ethanol is available. Calculate the mass ( kg ) of the solution that must be taken to obtain 1487 g of methylene chloride density: CH2Cl2-1327(kg/m^3) C2H5OH-789.3(kg/m^3)

151. ## algebra

what is the value of the y-coordinate of the solution to the system of equations x-2y=1 and x+4y=7

152. ## 6th grade science

what is a boundary between two air masses called

153. ## Math

(I have two questions) 1. Solve for x without a calculator: log3(x^2)=2log3(4)-4log3(5) This is what I have so far: 2log3(x)=log3(4^2)-log3(5^4) 2log3(x)=log3(16/625) ...and now I'm stuck. 2. Simplify: 2log4(9)-2log3

154. ## English

What is the hellenic perspective?

asked by need help
155. ## English

Can somebody help me with commans? where do they commas go in these sentences? Or do they need them? 1) I give you homework becuase you need to learn commas. 2)If you fill in the commas you will be happy with your grade. 3) I will be happy as I grade you

156. ## english

Could you tell me which irregular verb would be correct in the following sentences? The boys see, saw the fire trucks across the street. They did or do their homework everyday. I ran or run to get towels from the closet. I sing or sang a song everyday.

157. ## English

I'm fishing for my word that I can use in my essay that would mean free with giving (almost to a fault), where one gives with little regard to where the money goes and what it would be used for.

158. ## U.S HIstory

list the similarities between New MExico and California and in the way Americans settled in the both places?

159. ## physics

Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00 before reaching the edge, what is his speed as he leaves the roof?

160. ## Physics

A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket. The bolt hits the ground 7.10 later. What was the rocket's acceleration?

161. ## physics

Four identical metallic objects carry the following charges: + 1.6, + 6.2, − 4.8, and . The objects are brought simultaneously into contact, so that each touches the others. Then they are separated, (a) What is the final charge on each object? (b) How

162. ## Physics

A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt falls off the side of the rocket. The bolt hits the ground 7.10 seconds later.

163. ## Physics

Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of 30.0. If Santa slides 5.00m before reaching the edge, what is his speed as he leaves the roof?

164. ## spanish

what does "todo esta bonito" mean in english?

165. ## algebra

Jims Brakes charges \$25 for parts and \$55 per hour to fix the brakes on a car. Myrons Auto charges \$40 for parts and \$30 per hour to do the same job. What length of job in hours would have the same cost on both shapes?

166. ## Algebra

The sum of two mumbers is 21, and their difference is 7. What are the numbers?

167. ## 6th grade

what is cell theory

168. ## pre-calculus

If sin a = 3/5 when Pi/2

169. ## Physics

The frequency of the electromagnetic waves in a microwave oven is 2.2 GHz. A large piece of cake is placed inside this microwave oven without the rotating plate, and left to cook for a while. Once the cake is cut, the distance between adjacent uncooked

170. ## math

if the perimter is 24 and each unit is 1 brick long. how many bricks will i need

171. ## math

a sock drawer has 2 blue pair,4 white pair,4 black pair? what is the probability you will pick out a black pair ? i think is 2/10 that how i get my answer but not for sure that correct

172. ## algebra

2x^2-8x-42 over 6x^2 divided by x^2-9 over x^2-3x

173. ## Mathematicas

To win \$1 million, you must draw two cards whose sum is nine from a stack of cards numbered 1 through 10. After the first draw, you replace the card and shuffle the stack again for the second draw. What is the chance that your two cards will have a sum of

174. ## trig

Two sides of triangle CDE are 9 and 4, as shown. Write an equation in standard form for the line CD. Leave values as radicals. There is a picture of a triangle that passes through point (4,0) The answer is 65^1/2x + 4y = 4(65^1/2) But, I don't understand

175. ## Chemistry

how does the position of a metal in the periodic table determine whether the element exists in nature as an oxide, a carbonate, or a sulfide?

176. ## English 101

Which sentence is parallel and which is not parallel. 1. Einstein liked doing mathemathical research more than to supervise a large laboratory. 2.While wrapping the gifts, I noticed that murray, my pet terrier, kept trying to untie the bow.

177. ## math

4 divided by 5.12

178. ## com

Determine three main things you must do to convert the annotated bibliography to an APA-formatted reference page as part of the rough draft of your research paper.

179. ## phys

show [f(xop), d/dx] = -df/dx please help, can sb gives a hint? I really appreciate.

180. ## math

a group of friends shared the expenses of an automobile trip,which cost \$40.if there had been 3 more people in the group.each would have \$3 less.how many people were there in the group and how much did each pay?

181. ## calculus

integrate (2/3x^5)

182. ## alg2/trig

To the nearest minute, what is the approximate size of the smallest angle of a triangle whose sides are 4,5, and 8? How do I find the angle?

183. ## math

what are the subsets of S?