# Questions Asked onDecember 15, 2011

1. ## physics

Julie carries an 8.0-kg suitcase as she walks 18 m along an inclined walkway to her hotel room at a constant speed of 1.5 m/s. The walkway is inclined 15 degrees above the horizontal. How much work does Julie do in carrying her suitcase?

2. ## algebra

A jogger ran 6 miles, decreased her speed by 1 mile per hour and than ran another 7 miles. If total jogging time was 2 1/42, find speed for each part of her run.

3. ## physics

How much centripetal force is needed to keep a 0.20 kg ball on a 1.50 m string moving in a circular path with a speed of 3.0 m/s?

4. ## Chemistry

when 25.0 mL of a solution containing both Fe2+ and Fe3+ ions is titrated with 23.0 mL of 0.0200 M KMnO4 (in dilute sulfuric acid). As a result, all of the Fe2+ ions are oxidized to Fe3+ ions. Next, the solution is treated with Zn metal to convert all of

5. ## Electric Power Tools

I need help with my test, I don't know if they are all right or not. I answered the questions to the best of my ability. My answers are marked with an *. 1. What is the typical no-load speed of a high-speed drill? A. 1,000 rpm *B. 2,500 rpm C. 3,000 rpm D.

6. ## geometry

what is the resultant of the two vectors as an ordered pair? and 5,-5> Thanks

7. ## physics

9. The surface of the earth is approximately 6,400 km from its center. If the mass of the earth is 6.0 x 1024 kg, what is the acceleration due to gravity near the surface?

what lines are foreshadowing I fear, too early: for my mind misgives Some consequence yet hanging in the stars Shall bitterly begin his fearful date With this night's revels and expire the term Of a despised life closed in my breast By some vile forfeit of

9. ## geometry

I totally don't understand Vectors How do you describe a vector as an ordered pair? on the x and Y where they cross it is 41 degrees and goes to the left up to the y 77 I am totally confused Help

10. ## Government

Most members of congress are: A. concerned with national issues,but even more concerned with local ones. B. controlled by special-interest groups. C. interested only in the work of the subcommittee on which they serve. D. opposed to the seniority system.

11. ## Physics Physics Physics...

A billiard ball traveling at 3.8 m/s has an elastic head-on collision with a billiard ball of equal mass that is initially at rest. The first ball is at rest after the collision. What is the speed of the second ball after the collision?

12. ## Chemistry- urgent!

When a solution of sodium oxalate (Na2C2O4) is added to a solution of lanthanum (III) chloride, lanthanum oxalate (molar mass 541.86 g/mol) The balanced net ionic equation for the reaction is: 3C2O4^2- (aq) + 2La^3+ (aq) --> La2(C2O4)3 (s) Thirty ml of

13. ## Anthropology

Which of the following is not an example of the type of work applied anthropologists do? Applied anthropologists : a)help to develop various programs associated with health care b)help to develop businessmen and corporations solve production and supply

"Tommy has 16 toy trucks. How many different arrays can he make with all the trucks?What are the arrays?"

15. ## Physics

Calculate the position of the center of mass of the following pairs of objects. Use a coordinate system where the origin is at the center of the more massive object. Give your answer not in meters but as a fraction of the radius as requested. Get data from

16. ## physical science

At noon on September 21, the Sun is directly overhead at a latitude of

17. ## algebra

hooke's law the distance d when a spring is stretched by a hanging object. if the distance is 14cm when the weight is 4kg what is the distance when the weight is 9kg The distance is

18. ## physics

How much centripetal force is needed to keep a 0.20 kg ball on a 1.50 m string moving in a circular path with a speed of 3.0 m/s?

19. ## physics

A bullet with mass m = 5.21 g is moving horizontally with a speed v=367 m/s when it strikes a block of hardened steel with mass M = 14.8 kg(initially at rest). The bullet bounces o the block in a perfectly elastic collision. (a) What is the speed (m/s) of

20. ## Chemistry

Carbon tetrachloride (CCl4) and benzene (C6H6) form ideal solutions. Consider an equimolar solution of CCl4 and C6H6 at 25°C. The vapor above this solutionis collected and condensed. Using the following data, determine the composition in mole fraction of

21. ## physical science

A car traveling at 30 mph can stop in about 100 ft. How far does it take for the same car to stop if it is traveling at 60 mph?

22. ## chemistry

Calculate the approximate volume of a 0.600 mol sample of gas at 15.0 degrees C and a pressure of 1.10 atm.

23. ## science

what do gravitational,magnetic and electostatic forces have in common?

24. ## math

An open-topped box is made from a rectangular piece of cardboard, with dimensions of 24 cm by 30 cm, by cutting congruent squares from each corner and folding up the sides. Determine the dimensions of the squares to be cut to create a box with a volume of

25. ## Anthropology

If a friend were to say, “ He’s the president of the college” the term “president” would refer to an: a)status b)role c)social situation d)social relationship e)social interaction a group ranked in a system of social stratification into which

26. ## Anthropology

Lecture, desks, class hours, and writing boards are all part of the class: a)stratification b)rank C)social situation d)status e)role The term mana is best defined as: a)a member of hierarchy of priests b)the implements used in magical ceremonies c)a

27. ## physics

An archer shoots an arrow horizontally with an initial velocity of 100 meters per second from a building that is 20 meters high. (air resistance is neglected) a. Calculate the time when the arrow is in the air. b. Find the horizontal distance the arrow

28. ## Algebra

-your school club decides to hold a fundraiser by selling trail mix, and you are in chrage of making the mix. You plan to offer two mixes, Country Blend and Premium Mix, each sold in one pound bags. Each pound of Country Blend consists of 1/2 pound of

29. ## physics

eric has a mass of 60 kg. he is standing on a scale in an elevator that is accelerating downward at 1.7m/s^2. what is approximate reading on the scale?

30. ## Spanish

1. ¿Dónde estuvieron tus padres ayer? Mis padres estuvieron en la casa. 2. ¿Anduvo ty papá en bicicleta ayer? Sí, mi papa anduvo en bicicleta ayer. 3. ¿Anduviste en bicicleta ayer? Sí, yo anduve en bicicleta ayer. 4. ¿Cuánto dinero tuviste ayer?

31. ## geometry

Point M is the midpoint of AC. Find its coordinates. (1 point)(b + c, d) (a + c, d) (2c + 2c, d) (2b + c, d) 2. Point N is the midpoint of BC. Find its coordinates. (1 point)(b + c, d) (a + c, d) (2a + c, d) What theorem do Exercises 1-4 prove? (1

32. ## geometry

which triangle congruence theorem explains why all triangles are rigid? is it SSS, SAS, ASA, or AAS?

33. ## math

A person standing on the roof of a building throws a ball directly upward. The ball misses the rooftop on its way down and eventually strikes the ground. The function s(t) = −16t2 + 64t + 80 describes the ball’s height above the ground, s(t) , in feet,

34. ## Math

Five employees at the Wild Fowl Publishing Company each come to work by a different one of five means: car, railroad, subway, and walking. They hold these positions at the company: art director, editor, publisher, receptionist, and secretary. Two of them

35. ## geometry

I have to find the missing value to the nearest hundreth for Cos__=9/20 Help please

36. ## verb usage

In the sentence: The Romans,too,----- ceremonial dancing to Italy from Greece, used it in theatrical performances. The answers are: a.Have brought, b.having brought, c.brought, d. had brought. I think the answer is b. having brought but am not sure. If

37. ## Psychology

The Institutional Review Board is a university or college committee that a. evaluates proposals and awards grant \$ to researchers b. evaluates the methodological soundness of research proposals c. evaluates the ethical soundness of research d. all of the

38. ## Calculus

Identify the open intervals on which the graph of f(x)=3/(x^2+12) is concave up and/or concave down. Please give in interval form.

39. ## math

two equal squares, ABCD and DEFG, have the vertex D in common. The angle between the two squares is 60 degrees: what is the angle ACF?

40. ## science

How many protons, neutrons, and electrons does a neutral atom of calcium have?

41. ## critical thinking

how can i go about answering the rest of the question. can you give me examples i can use? thank If being part of a group and seeking and obtaining status in that group lead to individual success, what’ s wrong with herd-instinct? Explain in detail,

42. ## Physics

A car of mass 1550 kg is travelling at 75.0 km/h on a dry horizontal concrete surface when the driver applies the brakes licking the wheels. (a) How far does the car travel before coming to rest? (b) How long does it take the car to stop after the driver

43. ## math word problem

what is the least number of dancers that are needed if a choreographer wants to arrange them in groups of 4,5, or 6 with none left? im not understanding the question. can you help?

44. ## physical science

Which of the following four bodies has the greatest kinetic energy? a. A body of mass 1 kg moving with speed 1000 m/s. b. A body of mass 2 kg moving with speed 50 m/s c. A body of mass 3 kg moving with speed 50 m/s d. A body of mass 50 kg moving with speed

45. ## statistics

the admissions policy at a certain university requires that incoming students score in the upper 20% on a standardized test. if the mean score on the test is 510 and the standard deviation of the scores is 80, what is the minimum score that a student can

46. ## economics

1.Write 4+6+8+10 in sigma notation: I came up with sigma in the middle 3 on top j=0 on the bottom 2n+4 to the right of the signma sign 2. Find the 10th term of the sequence -1/5,-1/20,-1/80 this was a geometric sequence so I said a(subscript10) =

48. ## physical science

A small car with a weight of 2000 lb traveling at 30 mph can stop in about 100 ft. How far does it take for a large SUV weighing 8000 lb to stop if it is also traveling at 30 mph?

49. ## Math

For a 3-person relay race, a coach can choose from 4 of his top runners.how many different 3- person teams can he choose ? Use the act it out strategy.

50. ## physical science

An azimuth angle of 135 degrees would correspond to:

51. ## phys

How many kcal of heat are required to vaporize 25.0 kg of water at 100C?

52. ## alegebra

if a rectangular pen for dogs has an area of 480 square meters, and the length of the pen is 2.4 meters, what is the width of the pen??

1. ¿Dónde estuvieron tus padres ayer? Mis padres estuvieron en la casa. 2. ¿Anduvo ty papá en bicicleta ayer? Sí, mi papa anduvo en bicicleta ayer. 3. ¿Anduviste en bicicleta ayer? Sí, yo anduve en bicicleta ayer. 4. ¿Cuánto dinero tuviste ayer?

54. ## psy

On p. 84 of the text, in the Thinking Clearly section, the conduction action potentials and activation of neurotransmitters is related to a row of mousetraps on a wobbly shelf. Think of another analogy you can use to describe the conduction of action

55. ## Math: Linear Equations

What is "3x=9" in y=mx+b form, and what is its slope, y-intercept, and x-intercept? [i think that its x-intercept is (3,0), but i'm not sure about any of the others] Also, what is the x-intercept of "2y+16=0"? [is it "none"?]

56. ## physics

radius of the earth = 6.37 × 10^6 what is the speed of a 90.6 kg person at the equator? I know that F=m(v^2/r) but I don't know the force. Is there another equation that I'm missing or I'm using the wrong one? Thanks

57. ## SCIENCE

I have a wanted poster to make on: mad cow disease and I need to find a picture of bacterium or virus and "label" the parts. I am having trouble finding a picture that labels parts. Can you help me with this?

58. ## Psychology

human areboth creature and creators of their personal and social world. what does that mean.

59. ## mth

A popular new secretary at the law firm of Farnsworth, Newman, O’Malley, Price, and Reynolds, is taken to lunch by a different one of those five men on each of her first week on the job. Each man took her to eat at a different one of these five types of

60. ## english

Regarding the letter "Partisan Politics must end": Not only was U.S. Rep. Candice Miller against President Obama's jobs plan, but so were Republican members of Congress, as well as a significant number of congressional Democrats who also refused to vote

61. ## math

Five employees at the Wild Fowl Publishing Company each come to work by a different one of five means: car, railroad, subway, and walking. They hold these positions at the company: art director, editor, publisher, receptionist, and secretary. Two of them

62. ## Government

The major function of congress: is it. to inform the people or enact legislation.

63. ## Math: Linear Equations

What is "3x=9" in y=mx+b form, and what is its slope, y-intercept, and x-intercept? [i think that its x-intercept is (3,0), but i'm not sure about any of the others] Also, what is the x-intercept of "2y+16=0"? [is it "none"?]

64. ## algebra

a ball is thrown downward from the too of 110 ft bldg with an initial velocity of 14ft per second. the height of ball h after t seconds is given by the equation h = -16t^2-14t +110. how long after ball is thrown will it hit the ground

65. ## science

what spheres might be affecred by a hurricane?

"I

67. ## trigonometry

Use the given information to solve the triangle. 1) C = 145 degrees, b = 4, c = 14. 2) A = 150 degrees, C = 20 degrees, a = 200.

68. ## math

what percent of the current number of states had joined the united states by the year 1863? 1792 - 15 1817 - 20 1836 - 25 1848 - 30 1863 - 35 1889 - 40 1896 - 45 1959 - 50

69. ## Physics

A whistle of frequency 490 Hz moves in a circle of radius 2.00 ft at an angular speed of 15.0 rad/s. What are the lowest and the highest frequencies heard by a listener a long distance away at rest with respect to the center of the circle?

70. ## English

"Out of spite, the human being pretended not to believe that it was Snowball who had destroyed the windmill…The animals knew that this was not the case." What kind of Irony is this?, Situational,Dramatic, or Verbal

71. ## chemistry

what is some background on the ideal gas constant R

A tennis player places a 51 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.067 kg tennis ball horizontally with a velocity of 33.4 m/s toward the north. What is the final velocity of the machine?

73. ## Algebra

c=6350/(425-3x) What is the cost and equation to remove 99% of the pollution in the pond?

74. ## math

A popular new secretary at the law firm of Farnsworth, Newman, O’Malley, Price, and Reynolds, is taken to lunch by a different one of those five men on each of her first week on the job. Each man took her to eat at a different one of these five types of

75. ## Algebra

You find that a small business loan in the amount of 50,000 is the amount you need to purchase the restaurant location. After researching banks to find the best interest rate, you find that banks for small businesses offer the best interest rate of 9%

(Airplane & Radar) An airplane is flying (horizontally) at the height of 6 km on a flight path that will take it directly over a radar tracking station (on ground). If the distance D between the plane and the radar is decreasing at a rate of 300 km/hr,

77. ## physics

What is the pressure at the bottom of a river (12 m deep) if the air pressure over the river is 98.23 kPa? The density of the river water is 988 kg/m3.

78. ## physics

What is the pressure at the bottom of a river (12 m deep) if the air pressure over the river is 98.23 kPa? The density of the river water is 988 kg/m3.

79. ## Physics

The 17500 Hz whine of the turbines in the jet engines of an aircraft moving with speed 280 m/s is heard at what frequency by the pilot of a second craft trying to overtake the first at a speed of 380 m/s?

80. ## physics

a .65 kg ball is attached to the end of a string. it is swung in a vertical circle with a radius of .50 m. at the top of the circle its velocity is 2.8 m/s.

81. ## English

What are three ways to save money for your school? (Besides canceling field trips)

82. ## algebra 2

If y = 2x - 1 and (3, 5) and (4, 7) are part of the pattern then what is the y coordinate of (5, __ )? Answers available in ... 10Take this time to do your best on this question. Answer:

83. ## Pre-Cal

Suppose è is an acute angle of a right triangle. For this function, find the values of the remaining five trigonometric functions of è. Round to four decimal places. sin è = 0.1 cos è = tan è = cot è = csc è = sec è =

84. ## Algebra

You find that a small business loan in the amount of 50,000 is the amount you need to purchase the restaurant location. After researching banks to find the best interest rate, you find that banks for small businesses offer the best interest rate of 9%

85. ## math

explain how would you write 5/6 as a percent?

86. ## physical or mental verbs

She approved the proposed marriage==this would be a physical verb right

87. ## geometry

A parking lot has seventy-three parking spaces numbered from 1 to 73. There are no cars in the parking lot when Jillian pulls in and randomly parks. What is the probability that the number on the parking space where she parks is greater than or equal to

88. ## math

a 3'' times 5'' photo is enlarged so that the length of the new photo is 7 inches. what is the width of the new photo?

89. ## Algebra

The cost, in millions, to remove x% of pollution in a pond is modeled by the equation: C=6350/(425-3x) . What is the cost to remove 75% of the pollution? Hint: Plug in and calculate, do not convert to a decimal. Can someone tell me how figure this out step

90. ## math

what is equivalent to 98% o.49 or 100/98 or o.98 or 49/100

91. ## Physicss....

Two carts with masses of 4.24 kg and 2.22 kg move toward each other on a frictionless track with speeds of 4.55 m/s and 3.16 m/s respectively. The carts stick together after colliding head-on. Find the final speed.

92. ## geometry

I am totally stuck again.. I am trying to find the value of X Triangle with square in right top corner with legs to the left and right and the base at the end with number 9 under it and number 7 on the left side of the triangle. Help please

93. ## Algebra

The cost, in millions, to remove x% of pollution in a pond is modeled by the equation: C=6350/(425-3x) . What is the cost to remove 75% of the pollution? Hint: Plug in and calculate, do not convert to a decimal. Can someone tell me how figure this out step

94. ## Algebra

c=6350/(425-3x) What is the cost and equation to remove 99% of the pollution in the pond?

95. ## now for my physics hw..

A railroad car with a mass of 1.99 104 kg moving at 2.80 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.52 m/s. (a) What is the speed of the three joined

96. ## physics

A light spring of constant k = 156 N/m rests vertically on the bottom of a large beaker of water (Fig. P9.34a). A 4.10 kg block of wood (density = 650 kg/m3) is connected to the spring and the block-spring system is allowed to come to static equilibrium

97. ## Math

Given the hyperbola[(x+3)^2/4]-[(y-1)^2/9]=1,find the equations of the asymptotes.

1.Write 4+6+8+10 in sigma notation: I came up with sigma in the middle 3 on top j=0 on the bottom 2. Find the 10th term of the sequence -1/5,-1/20,-1/80 this was a geometric sequence so I said a(subscript10) = -1/5*1/4^(10-1) =-1/5*(1/4)^9 = -1/5*1/2621444

99. ## Math

Five employees at the Wild Fowl Publishing Company each come to work by a different one of five means: car, railroad, subway, and walking. They hold these positions at the company: art director, editor, publisher, receptionist, and secretary. Two of them

100. ## Algebra I

lauren has 40 coins all together, all dimes, nickles, and quarters they equal \$4.50 and he has 7 more dimes than nickles, how many quarters does he have

101. ## science

What types of sever weather can be investigated by radar?

102. ## math

what is 2/100 as a percent and a decimal?

103. ## calculus

How do I integrate x(arctanx) dx? Is it some sort of integration by parts? Can you please show steps? Thanks in advance!

104. ## math estimating w/fractions

can you check my answers: estimate w/mixednumbers: 8) 9 1/11 - 3 7/9 i got: 9 - 4 = 5 9) 4 1/2 - 1 24/25 i got: 4 - 2 = 2 12) 9 8/10 + 8 2/10 i got: 10 + 8 = 18 14) 4 5/9 + 5 9/10 i got: 4 + 6 = 10

105. ## gotta have answer by 11:59 tonight!!!

A railroad car with a mass of 1.99 104 kg moving at 2.80 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.52 m/s. (a) What is the speed of the three joined

106. ## chemistry

what is some background on the ideal gas constant R

107. ## Math estimating product

18) 5 2/9 * 4 9/10 i got: 5 * 5 = 25 20) 1 7/10 * 8 1/12 i got: 2 * 8 = 16 22) 5 3/4 * 2 2/3 i got: 6 * 3 = 18 24) 5 4/5 * 9 1/2 i got: 6 * 9 = 45 are these write?

108. ## College Algebra

using the knowledge of systems of equations, and that the equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center and r is the radius. Find the equation of a circle that contains the following points: (6,2), (4,6), and (-3,5). (These 3

109. ## Math estimate each quotient

26) 36 1/3 divide by 4 2/5 i got: 36 divide by 4 = 9 28) 8 2/12 divide by 8 2/7 i got: 8 divide by 8 = 1 are these right?

110. ## College Algebra

using the knowledge of systems of equations, and that the equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center and r is the radius. Find the equation of a circle that contains the following points: (6,2), (4,6), and (-3,5). (These 3

111. ## English

Do I need a comma in this sentence or can it be improved on? This dream signifies Gabriel’s hope for Roy to follow in his footsteps and become a religious figure like him.

112. ## books

what does it mean war is peace from the novel 1984?

113. ## chem

How many grams are in 3.6 moles of agcl2?

114. ## Calculus

find the second derivative of f(x)=3/(x^2+12)

115. ## Anthropology

Magic according to Malinowski in ( cited in “Baseball Magic “) occurs in response to : a)anger b)frustration C)anxiety d)social pressure e)none of the above

2x^2-8x+2=0

117. ## Math

How many equal groups can 24 flowers be put into?

118. ## Anthropology

An anthropologist might argue that the ruby slippers worn by Dorothy(Judy Garland) in the movie the Wizard of Oz would bring a high auction price b/c some North Americans believe the shoes: a)were used by a trickster b)are inhabited by a poltergeist c)have

119. ## Anthropology

A group gathering for a marriage ceremony provides an example of which supernatural function? a)the euphoric function b)the revitalizing function c)supportive function d)all the above Anthropologists first began to explore the supernatural beliefs and

120. ## socials

Thanks for the welcome ms. sue :) so happy to be able to post again. what other political groups have used the methods that FLQ used to forward their cause? i only come up with Talibans, IRA, Alkida. I not know any others. what similarity they have to FLQ?

121. ## physics

how to solve proper time interval?Proper length? thank you:D

122. ## Spanish

My teacher in spanish one gives ridiculous word searches. They are hugmongous and I need help to find the answers

Evaluate 4x for each value of x. write the answer in simplest form. x = 3/8

124. ## Spanish

I had to write a paragraph about my last birthday and what movies and people I saw last week 1.Vi a mis hermanos la semana pasada. 2.Vi a mis primos la semana pasada. 3.Vi la película Star Wars la semana pasada. 4.Yo recibí mucho dinero para mi último

125. ## Spanish-Please check this one also

I had to make up questions using the past tense of decir,querer, hacer 1. ¿Qué dijo el doctor ayer? 2. ¿Qué hicieron los profesores ayer en la escuela? 3. ¿Quisiste mirar la pelicula ayer? 4.Tú quisiste un coche nuevo? 5. ¿Tú quiciste la tarea

126. ## computer science

write a quiz programs in Q Basic to ask 5 questions to the user and calculate the score

127. ## nutrition

How can I know the RDA (recommended dietary allowance) for nutrients other than minerals and vitamins? Is there suck a thing?

128. ## maths

prepare an assignment on pratical applications &co-relatives of implementation of discounts. sales tax and vat in steps of c.i &s.i in bank &post office

129. ## socials

what was the war measures act? this definition i got but i don't quite know what it mean. Act of the canadian parliament that gave the federal cabinet emergency powers. does that mean that people get arrested without a reason? and i not think that the

130. ## physics

What is the velocity of a 100 g ball on a 50 cm string moving in a horizontal circle that requires a centripetal force of 1 N?

3x^2-5x+1=0

132. ## math

how do you find ratios?

133. ## physics

The speed of a truck going south is reduced from 80 km/h to 44 km/h in a distance of 250 m. Calculate the following: a. the time elapsed b. the acceleration c. the distance it traveled before it is brought to rest from 44 km/h

134. ## physics

A ball is thrown with an initial velocity of 20 meters per second at an angle of 60° with the horizontal ground surface. Find the following: a. the horizontal velocity of the ball b. the ball’s initial vertical velocity c. the range of the ball d. the

135. ## introductory physics

A block is sent up a frictionless ramp along which an x axis extends upward. The figure below gives the kinetic energy of the block as a function of position x; the scale of the figure's vertical axis is set by Ks = 46.0 J. If the block's initial speed is

136. ## ethnics

how might the country best prepare for the changing race and ethnicity of its current and future citizens?

137. ## English

1. What if I ran for Congress? 2. What if I run for Congress? 3. What if you were very rich? 4. What if you are very rich? 5. What if you had been very rich? (Which one is grammatical? Are #1 and #2 in subjunctive mood? Are they talking about the past or

138. ## algebra 1

Evaluate: 2m^2-(n-p) when m=3, n=-2, p=-4

139. ## Calc

find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis y=x^2+1; y=9-x^2; about y=-1

140. ## calculus

DERIVATIVE of: g(x) = Sq.root of x^4-8x^3+9 thanks

141. ## socials

What political party develop in quebec as consequence of quebec separatist movement? they have any political success? That be parti quebecois? Yes they have political success. Lots people vote for this party after Levesque reassured Quebeckers that voting

142. ## math gcf

what is the gcf for 84 and 126 a. 42 b 21 c 18 d 7 i got: 42 is that right?

143. ## calculus

Derivative of: h(x) = e^3x+2/e^3x-2 thanks

144. ## math

find equivalent fractions with a common denominator and order from least to greatest 3/7 ,1/9 ,2/3

145. ## math word problem 2

the jerseys of the members of one team are numberes 01 to 42. how many jerseys contain the digit 0? a 9 b 10 c 12 d 13 i got: 13 jerseys is that right?

146. ## trig (pre-cal class)

Suppose è is an acute angle of a right triangle. For this function, find the values of the remaining five trigonometric functions of è. Round to four decimal places. sin è = 0.1 cos è = tan è = cot è = csc è = sec è =

147. ## algebra

Find the future value of an ordinary annuity. Payments are made and interest is compounded as follows: R=600 7% interest compounded quarterly for 5 years I set this up as follows and still am getting the wrong answer: 500 (1.07)^5-1/0.07 Please help!!

148. ## geometry

a slide 5.4 meters long makes an angle of 29 degrees with the ground. How far above is the top of the slide?

149. ## pre calculus

I have worked this over and over still think it's wrong. find its inverse, domain, and range of f and f^-1 f(x) = 5/ (3x -7)

150. ## socials

what be decided in 1980 quebec referednum about? what the result? Levesque aske Quebeckers to vote yes to giving his government permission to discuss a new agreement with canada based on soverignty association. he propose that quebec become politically

151. ## pre-algebra

Can you help me figure this? The area of a rectangle is 14 square meters. Find the length and width of the rectangle if it's length is 5 meters greater than its width. Use an equation and the formula for the area of a rectangle=(width)(length). Thank you.

152. ## math

how do i write 94.6 as a fraction

153. ## English

Introduction about whether violence is from nature or nurture

154. ## calculus

What is the DERIVATIVE of: ln x^2 * ln 6 -(product rule)

155. ## math

What does it mean when an arrow follows a division problem?

156. ## socials

I try to post and see if work. It happen to me like this that one day I be able to post the other day not. That so weird. Thanks for help with my assignments days ago ms. sue. I ask my sister to post them for me my computer not work for Jiskha. If this be

157. ## chem 1

what is the electron configuration of Iron (metal) ? what is the 0rbital notation?

158. ## physical Science

A 1 kg object requires 10 N of force to lift it 5 m from the bottom of a well. (use g = 10 m/s2). The object is then dropped. What is the total energy when the object has fallen halfway down the well (2.5m)?

159. ## calculus

Find the DERIVATIVE: h(x)= e^3x+2/e^3x-2 (quotient rule)

160. ## physical science

A 1 kg object requires 10 N of force to lift it 5 m from the bottom of a well. (use g = 10 m/s2) What is the kinetic energy when the object has fallen halfway down the well (2.5m)?

161. ## physical science

An object on a flat frictionless table has a net horizontal force of 10 N exerted on it. What type of motion would the object have?

162. ## Chem

calculate the mass in grams of carbon needed to produce 160 grams of CO2 burning. C + O2 -> CO2

163. ## physics

Compare the force of gravity acting on a 1.0kg box and a 2.0kg box.

164. ## math

how do you figure 4 1/2 to 1 3/10 ration as a fraction in lowest terms?

165. ## math

mrs. cooper's class has 11 more girls than boys. there are 35 students in all. how many girls are there?

166. ## socials

Did the quebec separatists had a reasonable complaint with federal government and rest of Canada? Would that be true because they not respecting their culture. They only giving importance to their own culture and not caring about French.

167. ## physics

Compare the force of gravity acting on a 1.0kg box and a 2.0kg box.

168. ## math

The completion of each license plate is tested to see if the values random. Create an n-ary relation â€“ in table form â€“ that depicts possible results of ten license plate outputs. Include the following results: â€¢ â€¢ Number â€¢

169. ## infinitives-english

I have answered these questions, but when it comes to the "functions" of the infinitives i get a little stuck.. can you please check the answers that i've chosen? thanks in advance! Identify the function of the infinitive in the sentence. Choose from the

170. ## Physics

A lead ball, with an initial temperature of 25.0oC, is released from a height of 119.0 m. It does not bounce when it hits a hard surface. Assume all the energy of the fall goes into heating the lead. Find the temperature (in degrees C) of the ball after it

171. ## Physics

A lead ball, with an initial temperature of 25.0oC, is released from a height of 119.0 m. It does not bounce when it hits a hard surface. Assume all the energy of the fall goes into heating the lead. Find the temperature (in degrees C) of the ball after it

172. ## Spanishanother question

I had to write a paragraph about my last birthday and what movies and people I saw last week 1.Vi a mis hermanos la semana pasada. 2.Vi a mis primos la semana pasada. 3.Vi la película Star Wars la semana pasada. 4.Yo recibí mucho dinero para mi último

173. ## English

Please Help If I get information from one web site and that web site use information from another web site in citing reference do I use only the first web site or both. I wont get a grade if I don't get it right. ASAP Thank You

174. ## calculus

How can we verify area of square and rectangle by calculus ?

175. ## physics )':

A 66.5 kg ice skater moving to the right with a velocity of 2.80 m/s throws a 0.16 kg snowball to the right with a velocity of 20.4 m/s relative to the ground. (a) What is the velocity of the ice skater after throwing the snowball? Disregard the friction

176. ## Chem

When 30.0 grams of aluminum reacts with HCl how many grams of aluminum chloride are formed? Al = HCl yields AlCl3 + H 2

177. ## algebra

submarine is 7500 meters below, surfaces at rate of 80 meters per min. depth of sub after m minutes is given by d(m) = -7500 + 80m a. please give range for this function i thought -7500, is this correct? thanks b. make a table for graphing this function/

178. ## french

crossword question on la met dans un classeur? 7 letters _e_ _ l _ e

179. ## Chemistry

What is the pH of a 0.125 M solution of a weak base if ∆H° = -28.0 kJ and ∆S° = -175 J/K for the following equilibrium reaction at 25°C: B (aq) + H2O (l) ↔ BH+ (aq) + OH- (aq)

180. ## math

Set up an algebraic equation for this problem:When Brett and his younger sister add their ages together the sum in 17. Brett is not a teenager yet. In fact his age is not even a two-digit number. How old is Brett's sister?

181. ## Chem

what mass of KCl in grams is formed with 20 lbs of KClO3 is decomposed KCl03 yields KCl + O2

182. ## calculus

I don't quite understand Cartesian equations. I am told to Eliminate the parameter to find a cartesian equation of the curve. X= 3 - 4t, y= 2 - 3t there is no inequality I don't understand what I am trying to find.

183. ## algebra

10cm2 of a normal specimen of human blood contains 1.2g of hemoglobin how many grams does 47cm3 of the same blood contain

184. ## Algebra

The cost, in millions, to remove x% of pollution in a pond is modeled by the equation: C=6350/(425-3x) . What is the cost to remove 75% of the pollution? Hint: Plug in and calculate, do not convert to a decimal. Can someone tell me how figure this out step

185. ## english

radical skeptic might be willing to doubt which of the following

186. ## algebra

a ball is thrown downward from the too of 110 ft bldg with an initial velocity of 14ft per second. the height of ball h after t seconds is given by the equation h = -16t^2-14t +110. how long after ball is thrown will it hit the ground

187. ## Algebra

c=6350/(425-3x) What is the cost and equation to remove 99% of the pollution in the pond?

188. ## Algebra/ Chemistry

Q (ft3/min) : 3.9, 7.9, 11.8, 15.7, 19.6, 23.6, 27.5, 31.4, 35.3, 39.3 Delta P (psi): 0.13, 0.52, 1.18, 2.09, 3.27, 4.71, 6.41, 8.37, 10.59, 13.08 My professor gave the information above and wants us to come up with a linear equation that relates Q and

189. ## Question

What is National Merit Scholarship Program and National Achievement Scholarship Program?????? Is it when you take this test (i forgot) and if you pass you earn a scholarhship for a college of your choice??????

190. ## chemistry

For the balanced equation shown below,how many moles of (NH4)2Cr2O7 reacted, if 0.8353 moles of Cr2O3 are produced? (NH4)2Cr2O7 --> N2+4H2O+Cr2O3

191. ## chemistry

For the balanced equation shown below, how many moles of C4H10O reacted, if 0.5599 moles of H2O are produced? C4H10O+6O2 --> 4CO2+5H2O

192. ## statistics

the admissions policy at a certain university requires that incoming students score in the upper 20% on a standardized test. if the mean score on the test is 510 and the standard deviation of the scores is 80, what is the minimum score that a student can

193. ## English 7

What does this mean when I have to discuss a time of your life when I demomstrated perseverance????? This is a journal entry assignment for english. This is due tommrrow (it is a weekly assginment). Please Help!!!

194. ## chemistry

For the balanced equation shown below, how many moles of SO2 be PRODUCED, by 0.9807 moles of ZnS? 2ZnS+3O2 --> 2ZnO+2SO2

1.Write 4+6+8+10 in sigma notation: I came up with sigma in the middle 3 on top j=0 on the bottom 2n+4 to the right of the signma sign 2. Find the 10th term of the sequence -1/5,-1/20,-1/80 this was a geometric sequence so I said a(subscript10) =

196. ## chemistry

For the balanced equation shown below, how many moles of O2 will REACT with 0.6614 moles of NO? 2NO+O2 --> 2NO2

197. ## Government

The president's role in foreign policy increased largely because: is it, we became more of a world power

198. ## chemistry

For the balanced equation shown below, how many moles of F2 be produced by 0.8622 moles of C2H3F3? 4C2H3F3+7O2 --> 8CO+6H2O+6F2

199. ## Spanish-one more check please

I had to make up questions using the past tense of decir,querer, hacer 1. ¿Qué dijo el doctor ayer? 2. ¿Qué hicieron los profesores ayer en la escuela? 3. ¿Quisiste mirar la pelicula ayer? 4.Tú quisiste un coche nuevo? 5. ¿Hiciste la tarea ayer?

200. ## Physics

The 17500 Hz whine of the turbines in the jet engines of an aircraft moving with speed 280 m/s is heard at what frequency by the pilot of a second craft trying to overtake the first at a speed of 380 m/s?

201. ## physical science

A force of 1 N is exerted on a 10-kg rock. What is the acceleration of the rock?

202. ## Physics

A whistle of frequency 490 Hz moves in a circle of radius 2.00 ft at an angular speed of 15.0 rad/s. What are the lowest and the highest frequencies heard by a listener a long distance away at rest with respect to the center of the circle?

203. ## Math

How do you solve 2r = 48 + 4r?

204. ## physical science

What is the normal maximum amount of negative "g" forces allowed for a roller coaster ride?

205. ## College Algebra

A rectangle field with area of 1,500,000 needs to be fenced. 2W+2L=5,000. solve for L and W

206. ## math/ calculus

given h(x)= cotx/x find h'(ð/2)

207. ## physical science

An observer measures the North Star (Polaris) at an altitude of 450. The observer's position is

208. ## physical science

The declination of the Sun on March 21 on Earth is

209. ## phsyics

A 975-kg car accelerates. The magnitude of the average net force acting on the car is 3478 N, what is the acceleration of the car?

210. ## physical science

Which one of these statements is true about Copernicus? a. His model included planetary orbits that were circular. b. He believed that Ptolemy's ideas about the shape of orbits were correct c. His model could not account for retrograde motion of Mars. d.

211. ## statistics

What is the probability that the student is from UCLA or chooses football

212. ## Physics

A block is sent up a frictionless ramp along which an x axis extends upward. The figure below gives the kinetic energy of the block as a function of position x; the scale of the figure's vertical axis is set by Ks = 46.0 J. If the block's initial speed is

213. ## Englidh 7 - Journal Entry (plz read)

Demonstrating Perseverance I show perseverance when I study and work hard to raise my grade and never give up. My biggest goal is to make it to Yale University; I want to become an artist and a writer. I¡¦ll do whatever it takes to get accepted to that

214. ## physics

An early major objection to the idea that Earth is spinning on its axis was that Earth would turn so fast at the equator that people would be thrown into space. Given : radius earth = 6.37 × 10^6 m , mass earth = 5.98 × 10^24 kg , radius moon = 1.74 ×

215. ## algebra

find the variation constate and an equation of variation where y varies inversely as x and y=1 whenx=6 what is the variation constant is

216. ## GEOMETRY

have to find the missing value to the nearest hundreth for Cos__=9/20 Help please

217. ## incentive contract

Suppose you decide to elicit high CEO effort when and if bad luck occurs by paying the bonus for \$1 billion outcomes only. What criticism can you see with this incentive contract plan?

218. ## PHI 103

After being told that she is being punished for lying, a child responds by telling her mother that she also lied. This response may involve which fallacy? Ad homimen (tu quoque) Ad verecundiam (ex libris) Ad misericordiam (ex ante) Ad baculum (antebellum)

219. ## alegebra

if i bought 4 pairs of shoes for \$325.50 and later bought another pair of shoes for \$35, what was the mean cost of all the pairs of shoes?? thanks!(:

220. ## science

if a child weights forty pounds, and the dosage was 20mg/lb/day for doses, how many mg should be given in each dose?