2. Chemisty

The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.270 M NaOH. What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?

3. Math

Evaluate 1/2a^–4b^2 for a = –2 and b = 4. A.)2 B.)1/2 C.)3 D.)4 I think it is D. Thabk You.

4. consumer math

Joe McCain purchased 5 \$1,000 bonds at 89. The bonds pay 6%. What was the cost of the bonds? \$4,450 ? What was the total annual interest? What is the yield?

5. Math

Simplify (2t^–3)^3(0.4r)^2 A.)3.2r2 B.)1.28r^2/t^-6 C.)1.28R^2/t^9 D.)0.8r^2/t^-6 I think it is A. Thank You.

6. science

you are riding to school on the bus in a snowstorm. through the window, you see a lighted sign that gives the temperature as 26 degrees, but you can't make out whether the temperature scale is Celsius or Fahrenheit. which is it and how do you know

7. English

1. George Bernard Shaw criticized The Importance of Being Earnest for A.)being too long. B.)not being funny. C.)not having real substance. 2. Choose the word below that best completes the sentence: He’s incredibly ___________; he just can’t make up his

8. consumer math

Lily Adams purchased a \$1,000 bond at 70. The bond pays 4%. What was the cost of the bond? What was the annual interest? What is the yield (to the nearest tenth of a percent)?

9. Chemisty

The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.270 M NaOH. What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?

10. algebra

Jane Investor purchased a \$10,000 bond at 90. The annual interest is 5%.

11. Chemisty

The flask shown here contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.270 M NaOH. What volume of NaOH is needed to reach the end point of the titration? What was the initial concentration of HCl?

12. Precalculus/Trig 5

A radio transmission tower is 120 feet tall. How long should a guy wire be if it is to be attached 15 feet from the top and is to make an angle of 26 degrees with the ground? Give your answer to the nearest tenth of a foot

13. consumer math

Lily Adams purchased a \$1,000 bond at 70. The bond pays 4%. What was the cost of the bond? What was the annual interest? What is the yield (to the nearest tenth of a percent)?

14. Chemistry

calculate the wavelength in nm of the spectral line produced when an electron in an hydrogen atom undergoes the transition from n=3 to n=2. I get 6.56x10^-7 meters and 6,561.68 nm but that is not the right answer...help please!

15. Physics to be solved

a horizontal scaffold, of length 2.00 m and uniform mass 50.0 kg, is suspended from a building by two cables. The scaffold has dozens of paint cans stacked on it at various points. The total mass of the paint cans is 79.5 kg. The tension in the cable at

16. Physics

A bag is dropped from a hovering helicopter. The bag has fallen for 1.8 s. What is the bag's velocity? How far has the bag fallen?

17. Derivatives

Ship A is 70 km west of ship B and is sailing south at the rate of 25 km/hr.ship B is sailing north at the rate of 45 km/hr.how fast is the distance between the two ships changing 2 hours later?

18. Precalculus/Trig 5

A radio transmission tower is 120 feet tall. How long should a guy wire be if it is to be attached 15 feet from the top and is to make an angle of 26 degrees with the ground? Give your answer to the nearest tenth of a foot

19. chemistry

the chemical equation of nicotinic acid is C5H4NCOOH + NaOH --> C5H4NCOONa + H2O i need to calculate the intial molar concentration of this acid, based on the ratio in which the acid and base react. Please help i cant figure it out,

20. Math

1. The curve y=10/2x+1 -2 intersects the x-axis at A. The tangent to the curve at A intersects the y-axis at C. (i) Show that the equation of AC is 5y+4x=8 (ii) Find the distance of AC 2. The equation of a curve is y=1/6(2x-3)^3-4x (i) Find dy/dx (ii) Find

21. MATH!

the 2000 population of Jacksonville,Florida was 736,000 and was increasing at the rate of 1.94% each year. At that rate, when will the population be 1 million?

A heat transfer of 9.5 x 10^5 J is required to convert a block of ice at -15°C to water at 15°C. What is the mass of the block of ice?

23. Chemisty

0.550 L of 0.420 M H2SO4 is mixed with 0.500 L of 0.270 M KOH. What concentration of sulfuric acid remains after neutralization?

24. Math

Solve the equation sin2x=2cos2x, for 0 degrees

25. music

Which of the following works helped to redefine the symphony as a genre? A. Beethoven's Sixth Symphony B. Beethoven's Fifth Symphony C. Symphonie Fantastique D. Beethoven's Ninth Symphony Im thinking its B, right?

26. Physics

A gas is confined in a 0.47-m-diameter cylinder by a piston, on which rests a weight. The mass of the piston and weight together is 150 kg. The atmospheric pressure is 101 kPa. (a)What is the force (in Nt) exerted on the gas by the piston, the weight and

27. Physics

A diver (mass = 75.0 kg) walks to the end of a flexible diving board. The end of the board bends down a distance of 0.55 m. The diver's weight on the diving board makes it behave like a spring. a) Determine the spring constant of the diving board. b)

28. science

A solution contains 2 mEq/mL of KCL (Molecular weight 74.5). If a 20 mL ampule of this solution is diluted to 1 liter what is the percent strenght of the resulting solution?

29. math

The butcher shop sells a 3 lb package of chicken legs for \$9.57. The supermarket sells chicken legs for \$7.68/kg. Determine the price per kilogram that each store charges. Which store has the lower price per kilogram?

30. Math

Simplify (4xy2)3(xy)5 A. 64x^8y^11 B. 64x^15y^30 C. 12x^2y^11 D. 12x^8y^11

A teacher brings 3 gallons of juice on a field trip. There are 36 students on the trip. a. How many fluid ounces of juice does the teacher bring? Show your work. b. Does the teacher have enough juice to give each student a 12-fluid ounce glass of juice?

32. math

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? (1 point)

33. Physics

A carnival ferris wheel completes five turns about its horizontal axis every minute. What is the acceleration of a passenger at his/ her lowest point on the ride? I understand that 1/f= T which is how you find the period and that minutes must be converted

34. math

tell whether the system has one solution, infine\itely many solutions, or no solution y=3x-14 y-x=10

35. How to Find the Minimal Volume?

A sealed flask contains 0.60 g of water at 28 degrees celcius. The vapor pressure of water at this temperature is 28.36 mmHg. What is the minimum volume of the flask in order that no liquid water be present in the flask? ---------------------------- I

36. algebra

1 Solve the set of linear equations by the matrix method : a+3b+2c=3 , 2a-b-3c= -8, 5a+2b+c=9. Sove for a 2 4 7 3 2 Solve the set of linear equations by Guassian elimination method : a+2b+3c=5, 3a-b+2c=8, 4a-6b-4c=-2. Find a 1 4 5 -1 3 Solve the set of

37. Chemistry

An aqueous solution of ethanol is 14.1M C2H5OH. The density of the solution is 0.853g/mL. What is molality of ethanol in the solution? What is mass % of ethanol in solution? I got the molality which is -21.7 ethanol, but I can't figure out how to get the

38. physics

2. A car accelerates uniformly from +10.0 m/s to +40.0 m/s over a distance of 125 m. How long did it take to go that distance? Show all your work, including the equation used, given and unknown quantities, and any algebra required. Make sure your answer

39. Consumer Math

Will you please check my answers? 1. Mary Stevens earns \$6 an hour at her job and is entitled to time-and-a-half for overtime, and double time on holidays. Last week she worked 40 hours of regular time, 6 1/2 hours of overtime, and 8 hours of holiday time.

40. Science

Nathaniel is driving his sports car down a four lane highway at 40m/s. He comes up behind a slow moving dumptruck and decides to pass it in the left hand lane. If Nathaniel can accelerate at 5m/s^2, how long will it take for him to reach the speed of

Mirette wants to plant bulbs in patterned rows in her garden. Each row will have 12 plants alternating in this pattern: red tulip, yellow tulip, yellow tulip, white tulip. If she plants 8 rows, how many bulbs of each color will she need? Please answer and

42. music

The composer utilized the minor mode in Symphonie fantastique to represent A. joy and love. B. gloom and ferocity. C. solemnity and brilliance. D. earthiness. I'm thinking B .

43. S.S.

1. At current rates of use, known supplies of oil and natural gas may run out in less than _____ years. (1 point) 10 100 500 1,000 2. Which country consumes more oil, or petroleum, than it produces? (1 point) Mexico Iran United States Russia 3. Minerals,

44. Government Precedent questions

I need some help with these. IN Everson V. Board of education, what was the precedent? In Engle v. Vitale, what was the precedent? And in, Wallace vs. Jaffree, the precedent is..? Please help me out there. Thanks!!

45. physics

Before a collision, a 27 kg object is moving at +11 m/s. Find the impulse that acted on the object if, after the collision, it moved at the following velocities. a. 8 m/s b. -8m/s

46. math

how do you solve ratios in proportional

47. Math

Draw and label a Venn diagram for the intersections of these sets. A= 2,4,6,8,10 B= 5,10,20,30,40 I do not understand this

48. Consumer Math

Will you please check my answers? 1. Your employer has 600 business cards printed for you, and you give away 280 of them. To the nearest hundredth, what percent of the cards is left? A. 18.75% B. 53.33% C. 46.67% D. 21.43% 2. The LCD for the fractions 1/3,

49. statistics

El Nino and the mosoon. The earth is interconnected. For example, it appears that El Nino, the periodic warming of the Pacific Ocean west of South America, affects that the monsoon rains that are essential for agriculture in India. Here are the monsoon

50. algebra

Given a set of data pairs, how would you decide whether to use interpolation or extrapolation to find a certain value?

51. Physics

A brick is dropped from a high scaffold. (a) What is its velocity after 4.5 s? m/s (b) How far does the brick fall during this time?

52. Phy

A 2.0 kg ball is placed against a spring of force constant 750N/m, which has been compressed 0.28m. The spring is released and the ball moves along a horizontal frictionless surface and up a ramp. Calculate the... a) maximum elastic potential energy of the

53. Chemistry

Using Werner Hesienbergs uncertainty principle delta x >h/ (4pie*m*delta v) when mass of electron is 9.11x10^-31kg what is the uncertainty in the position of an electron moving at 9x10^6 m/s with an uncertainty of delta v= 0.01x10^6m/s

54. Math

Will you please check my answers? 1. Mary Stevens earns \$6 an hour at her job and is entitled to time-and-a-half for overtime, and double time on holidays. Last week she worked 40 hours of regular time, 6 1/2 hours of overtime, and 8 hours of holiday time.

55. math

A male moose is 2.6 m tall and 3.2 m long, with antlers that are 1.2 m across. An artist wants to carve scale models of the moose. She uses a scale factor of 1/30. a) What are the dimensions of the carvings to the nearest centimetre? b) How many carvings

56. Physics

A hockey puck has a mass of 0.120 kg and is at rest. A hockey player makes a shot, exerting a constant force of 29.5 N on the puck for 0.16 s. With what speed does it head toward the goal?

57. math

what is the length ,in units,of a line segment with the end point(2,1)

58. Physics

A carnival ferris wheel completes five turns about its horizontal axis every minute. What is the acceleration of a passenger at his/ her lowest point on the ride? I understand that 1/f= T which is how you find the period and that minutes must be converted

59. personal finance

Rita Smith owns 220 shares of Jefferson Carpet Mills. For the last calendar quarter, Jefferson Carpet Mills paid a dividend of \$0.47 a share. What is the total amount she received in her dividend check for this quarter?

60. Physics

You take a ride in a fast elevator to the top of a tall building and ride back down while standing on a bathroom scale. During which parts of the ride will your apparent and real weights be the same? During which parts will your apparent weight be less

61. Math

Evaluate 1/2a^–4b^2 for a= –2 and b= 4. A. 2 B. 1/2 C. 3 D. 4

62. Geometry

Jason designed an arch made of wrought iron for the top of a mall entrance. The 11 segments between the two concentric circles are each 1.25 m long. Find the total length of wrought iron used to make the structure. Round the answer to the nearest meter.

63. Social Studies help needed

1. At current rates of use, known supplies of oil and natural gas may run out in less than _____ years. (1 point) 10 100 500 1,000 2. Which country consumes more oil, or petroleum, than it produces? (1 point) Mexico Iran United States Russia 3. Minerals,

64. Math

The position vectors, r km, and velocity vectors, vkm/h, of two boats at a certain time are given by Boat A: 10 am, r(a) = 6i+10j, v(a) = 8i-2j Boat B: 10:30 am, r(b) = 8i+5j, v(b) = 4i+j If the boats collide, find the time when they collide as well as the

65. k park

how much heat must be removed froms 20 g of water at 130 c to make 20 g water at -22 c

66. Chemisty

74.0 mL of a 1.80 M solution is diluted to a volume of 248 mL. A 124-mL portion of that solution is diluted using 135 mL of water. What is the final concentration?

67. math

Julia and Bianca both leave the college at the same time, but in opposite directions. If Bianca travels 9 mph faster than Julia and after 4 hours they are 140 miles apart, how fast is each traveling?

68. arithmetic

500 words / 8 minutes whats the unit rate

69. Math

This is a continuation of a math problem I posted earlier. I'm a little confused by this question. From your equation, when during the day would the temperature be 30C? (2 marks) The equation I obtained was: T(t) = 5.9 sin( πt/12 + 7π/6 ) + 27 Any help

70. math

the population of Smallville in the year 1890 was 6250.assume the population increased at a rate of 2.75% per year. predict when the population reached 50,000 I'm not suppose to use logs to find the answer :(

71. physics

A small sphere of mass m=.0064kg and charge q1= +28.9 nC is attached to the end of a string and hangs vertically. A second charge of equal mass and charge q2= -58nC is located below the first charge by a distance d= 2.00cm. a. Find the Tension in the

Here are the monsoon rains (in millimeters) for the 23 strong El Nino years between 1871 and 2004: 628 669 740 651 710 717 698 653 604 781 784 790 811 830 858 896 806 790 792 957 872 a. To make the stemplot of these rainfall amounts, round the data to the

73. math

While sailing, Donna sees a lighthouse and calculates that the angle of elevation to the lighthouse is 3d, as shown in the accompanying diagram. When she sails her boat 700 feet closer to the lighthouse, she finds that the angle

74. math

tell wheter the system has one solution, infinitely many solutions, or no solution: y=3x-14 y-x=10

75. calculus

A box of rectangular base and an open top has a surface area 600 cm2. If the height of the box is equal to its width, find the dimensions that give a maximum volume.

76. Maths

The radius of a circle is 8cm, and the length of one of its chords is 12cm. Find the distance of the chord from the centre.

77. world civilization

What motivated western Europeans to explore and colonize in the wider world?

78. chemistry

Calculate the molarity of each ion in 0.500 M (NH4)3PO4. Enter a zero for an ion that doesn't occur in the compound.

79. geometry

distint points a, b, c, d, e, and f are marked on a circle. How many triangles can be formed using these points as vertices?

80. Math

Ms Morrison ate 1/4 of a pie then she ate another 1/8 of the pie how much pie they ate

81. muniz

how much heat must be removed from 20g of water at 130 c to make 20 g water at -22 c

82. Math

Andy said that 2,000 divided by 4=5,000 because 20 divided by 4=5 and the dividend has 3 zeros.Is Andy correct?expalin why or why not.

83. Physics

The mass of a string is 9.1 × 10-3 kg, and it is stretched so that the tension in it is 240 N. A transverse wave traveling on this string has a frequency of 240 Hz and a wavelength of 0.42 m. What is the length of the string?

84. math

A group of 132 students chose baseball and soccer as their favorite sports in the ratio of 3:8. How many students chose soccer as their favorite sport?

85. Math

Jackie has a babysitting business and works 4 days a week.She works 4 hours on Mondays afternoon , 3 hours on Tuesdays evenings, 5 hours on Fridays ,and 8 hours on Saturdays. She makes \$16 an hour. How much money will Jackie have made after 6 weeks? Please

86. physics

Two objects are approaching an intersection. One is a 50 kg traveling at 8 m/s from east to west and the other is a 40 kg going from south to north at 12 m/s. (a) Find the x and y components of the net momentum of this system. (b) What are the magnitude

87. Physics conceptual questions

You have a drink that you want to cool off? You could put in 100 g of ice or 100 g of water, both at 0 degree C. Which one would be more effective in cooling your drink? Why?

88. chemistry help plz

OH-OH-benzene ring-CH=CH-NH2 is anyone knows the name of this compound?

89. Science

Please complete the formula and process in arriving the answer. Please. Thank you. Nathaniel is driving his sports car down a four lane highway at 40m/s. He comes up behind a slow moving dumptruck and decides to pass it in the left hand lane. If Nathaniel

90. Government Law question

What kind of law is it when judges make the law by their decisions on the bench? ___ Law

91. math

is 2/11 a rational number? if yes pls explain and if not alsopls explain

92. World Studies

As industry spread, the German government initiated reforms to improve workers’ lives. What motivated Bismarck to enact reforms in Germany? What kinds of reforms were enacted in Germany? Respond in two or more well-organized paragraphs. Be sure to use

93. coordinate algebra

Jon is flying an airplane.He is currently 3,5000 feet in the air and he is ascending at a rate of 500 feet per minute.How many minutes it will take him to reach a height of 9,000 feet

94. math

Alice is giving a book as a gift that is 8 3/8 inches long and 6 1/2 inches wide. Will the book fit in a box that is 8 1/2 inches long and 6 1/2 wid or in a box that is 8 inches long and 6 inches wide?

95. Science

Chemistry! So a metal is found to absorb 1000 calories as it is heated from 40.0C to 60.0C. How much heat would the same sample absorb if it were heated from 60.0C to 80.0C? I know I'm supposed to use the equation Q=s x m x delta t (or soemthing) Q= energy

96. algebra

The perimeter of a rectangle equlas the sum of the lengths of its four sides. If the width of a rectangle is 7 inches and its perimeter is 46 inches, find the length of the rectangle

97. math

Mirette wants to plant bulbs in patterned rows in her garden. Each row will have 12 plants alternating in this pattern: red tulip, yellow tulip, yellow tulip, white tulip. If she plants 8 rows, how many bulbs of each color will she need? Please answer and

98. math

the sum of the reciprocals of 3 consecutive positive integers is 47 divided by the product of the integers. what is the smallest of the 3 integers

99. Math

During the week, the basketball team practices 80 minutes for 3 days and 2 1/2 hours on Saturday. How long does the team practice during the week? A390min B.242min C.85.5min D.272min A?

100. chemistry@@@

Explain what the terms chiral atom and chiral molecule mean. write in three sentences.thanks

101. maths

A 3 digit natural number is selected at random .Find the probability that it is divisible by 2 but not by 3?

102. language arts

John Yinger thinks that the natural-born clause should be removed because (1 point)it makes international policy more difficult. it goes against a central principle of American democracy. it damages the relationship between American citizens and immigrant

103. math help

How many different 5-person subcommittees can be formed from a club having 13 members?

104. CHEMISTY

WHICH HAS THE HIGHER BOILING POINT PENTANE OR HEPTANE

105. physics

find the force if f between charges of +100mc -50mc located 50cm a part?

106. Brown V Board of Education

Who presented this case to the NAACP? I've googled this and can't even find it.

107. Math

Jemma read 16 pages of her book in 40 minutes. If she continues at that pace, how log will it take her to read the next 24 pages?

108. Math

4 hours 18 min 11 sec- 3 hours 15 min 4 sec = 1 h 3 min 7 s 6 hours 7 minutes 42 sec + 2 hrs 12 min 38 sec= 8 hours 19 minutes 80 seconds

109. Statistics

The intermediate answers from some calculations based on whole number scores are X=4.3467892 and Y=3.3333. We now want to find X(2)+Y(2). After rounding, what values of X and Y do we use?

110. Math

1. Use the commutative property to show both arrays you can represent using the factors 3 and 5. 3x5=5x3

111. Math

Twice a number is greater than half that number by 24. Find the number.(ModelDrawing)

112. Physics

The driver of a car on a horizontal road makes an emergency stop by applying the brakes so that all four wheels lock and skid along the road. The coefficient of kinetic friction between tires and road is 0.39. The separation between the front and rear

113. chemistry

electrostatic interaction is important with what type of bond

114. Math

A ship is traveling due north. Every 30 mins,the captain corrects his course by a certain number of degrees.Here are the corrections made during the first four hours of the voyage: 5,-7,3,2,-6,8,-4,-6 ps theres degrees in the numbers Note:in marine

115. Mechanics & hydromechanics

Three forces pulling on a body are in equilibrium.The direction of one is due south, the direction of another is 80 degrees east of north, and the third force acts in the direction of 35 degrees west of north.If the magnitude of the southerly force is 38

116. Geometry

Picture given with problem: media.glynlyon(dot)com/g_geo_2012/12/img_geou12abc_8.gif If AC = 20, AE = 25, and AB = 5, what is the length of AD? Please explain how this is found, I've got a few problems like this and have no idea how to do it.

117. Art

When looking at fabrics, an interior designer will focus on these characteristics. (1 point) shape and form space and color color, texture, and pattern proportion and emphasis

118. maths

two poles are of height 20 metres and 14 metres. the wire makes an angle of 30 degree with the horizontal. find the distance between the twopoles.

119. ENGLISH (thanks)

"All Conflict in its simplest form its struggle between good and evil. I need a good interpretation. I cant use good and evil in the interprestation. There needs to be another word for good and evil. I don't know how to interpret without good and evil.

120. math pre calc

solve sin theta = 1/2,90 degrees less than theta less than 180 degrees

121. Physics

Hi. I am Walter White. I am good at chemistry but suck at physics. Can you help me? ---------------------------------------- Bob is traveling in a very fast space (v=0.8c) away from Alice, who is sitting still in an observatory watching him through a very

122. math in physics

find the force if f between charges of 100mc -50mc located 50cm a part?

123. Physics

A 200-N box is placed on an inclined plane that makes a 35.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.

124. math

solve by using subsitution: 4x+y=2 3y+2x=-1

125. math teasers

I have these math problems form 0-100. I have to use 4 fours to make an answer for that number. For Example: 1 : 4/4+4-4 2: 4/4+4/4 What other symbols are there besides +, -, *, /, and square root.

126. physics

a small conducted sphere is attached to the end of an insulating rod .it carries a charge of +5.0*10-9 C. the plates ,which are 4.0 cm apart, are connected to a 50 000 V supply. Calculate a)the magnitude of the electric field strenghen between the plates

127. chemistry

RANK THESE COMPOUNDS BY THE LENGTH OF THE CARBON-CARBON BOND

129. math

find two fractions with a sum that is greater than 3/4 and less than 15/16. Write your fractions in simplest form and find the actual sum.

130. URGENT Chemistry Question!

This might be a silly question, but... Is 6-8 on the pH scale considered neutral? If so, 6.23 pH is neutral and 8.78 should be considered basic. Is this correct?

I have a couple of phrases/sentences that need to be labeled as a type of figurative language. 1. Pitter Patter, raindrops are falling from the sky. (could this be onomatopoeia or personification?) 2. Boil the butter and bring it by the bank. (could this

132. english poem

As fair as morn, as fresh as May, a pretty grace in saying nay, Smil'st thou sweetheart? then sing and say, Ta na na no, But O! that love enchanting eye, Lo, here my doubtful doom I try, Tell me my sweet, live I or die? She smiles, fa la la la, Ah, she

133. Math

Bottom part of the greenhouse has a length of 350 cm, width of 220 cm, angle at the peak of the roof measures 90 degrees. Sketch the frame and label it with actual dimensions. Use trigonometry to find length of the roof pieces. Use a scale of 1:25 to

134. Math

Find the three two-digit numbers that divide 165 with a remainder of 0

135. math

The sides of a square with an area of 49 cm2 will be reduced by a scale factor of 5/8. Determine the area of the reduced square to the nearest square centimetre.

136. maths-urgent

rewrite the addition sum given below using digits. Each letter is used for a different digit. Answer the questions given below i) Which digit did you find first? ii) How did you find R and U? ........F.O.U.R ...........O.N.E ....T.H.R.E.E ....T.H.R.E.E

137. english10

How does Kent’s reaction to Lear’s banishment of Cordelia introduce the theme of sight and insight?

138. coordinate algebra

Jon is flying an airplane.He is currently 3,5000 feet in the air and he is ascending at a rate of 500 feet per minute.How many minutes it will take him to reach a height of 9,000 feet

139. Mechanics & hydromechanics

A block of wood is pulled along a Horizontal table by a force of 33 N inclined at 30 degrees above the Horizontal.Find the vertical and horizontal components of the force.

140. Math

On Saturday Miguel spent 2 hours and 30 minutes at basketball practice and 90 minutes at his pastry chef class. How much total time did Miguel spend doing these two activities? 4hours? Una is painting a chair She finished painting the first coat at 10:42

I need help. Can someone help me to make a sentence for DIMWITTED and NEARSIGHTEDLY.

142. math

I need help figuring out the formula for this problem. What might the lengths of a horse enclosure border be if the enclosure is 52 square feet? I have to show my work. Please can someone help me figure it out?

143. Math

Hello everybody! May I ask you a big favor? I need help. What I have is: A bag contains marbles of three different colors with at least three marbles of each color. Three marbles are randomly selected, without replacement. How many different color

144. arithmetic

Using math to fine 9:20 am to 5:05 pm

145. statistics

. Using the central limit theorem, construct a 95% confidence interval for the average total cry time for infants in the control group and infants in the intervention group. For this question only, assume that the standard deviation of cry time within each

146. statistics

Linear Regression In the babies.dta full dataset, generate a covariate called painind defined as 1 if the infant experienced severe pain upon receiving the shot (pain0 = 7) and as 0 otherwise. In Stata, you can use the commands: generate painind = 0

147. Maths

A metal sphere of diameter 12cm is metted to formed a sphere of diameter 6cm calculate the number of sphere formed from the metal sphere

148. quality of care

How do you define " quality of care? Does the healthcare manager define it? Does the patient define it? Does the third party payor define quality of care?

149. math

solve by using subsitution: 4x+y=2 3y+2x=-1

150. algebra

1 A + (B + C)= (A + B) + C associative scalar quantity dot product 2 2 2 3 Two systems of linear equations involving the same variables are said to be _______ if they have the same solution set. set associative equivalent parallel 4 Compute the determinant

151. Curriculum Development

Alex was working on a Blues Clue puzzle.This was the favorite puzzle of all of the children in the room.After observing him for a while, his teacher, Mrs.Obrecht, believed that Alex might be experiencing an eye-hand coordination problem.She may think this

152. History, social studies :)

The mughal empire gave trading rights to several EUropean countries, what assumptions about the power of those countries does this show ??

153. Physics

Engineers are developing new types of guns that might someday be used to launch satellites as if they were bullets. One such gun can give a small object a velocity of 4.4 km/s while moving it through a distance of only 1.6 cm. (a) What acceleration does

154. physics

find the force if f between charges of 100mc -50mc located 50cm a part?

155. math

solve by using subsitution: 4x+y=2 3y+2x=-1

156. math

solve by using subsitution: 4x+y=2 3y+2x=-1

157. Creative writing

Finish what I've started of this nursery rhyme? "Little jack Horner was a little explorer, who travelled to Mexico..."

158. Science, Heat Transfer

list 3 forms of radiation from the sun. how are they alike. how do they differ?

159. report

I am doing a report on the Xbox 720. Where can i find info about it. example (what it looks like, when it is coming out,...) Please help

160. math

solve by using subsitution: 4x+y=2 3y+2x=-1

161. math

A runner starts a race at the starting line. A second runner starts at 44 yards. If the first runner moves 7 yards each second and the second runner moves 3 yards each second, at what distance will the first runner catch the second runner?

2x^2-8x+8=0

163. Trig

log base b 64 - log base b 16 = log base 4 16 solve for the variable.. i got to the part as far as: (log 4/log b) = 2 now i m stuck at how i can isolate the b. plz help!

164. math

find two fractions with a sum that is greater than 1.6 but less than 1.9. write your fractions in simplest form and compute their exact sum.

165. algebra

solve by graphing 1.80+.2x=y 2.10+.15x=y solve by graphing 20+20x=y 200-25x=y

166. Early Childhood Education Interpersonal Skills

As an Educational Assistant you are leading a group converstation with 12 grade 4 students. They are having a discussion about the story that they have just read about a boy who has stolen a toy from a local corner store. The conversation has turned to the

167. physics

a person lifts a 4.3 kg centimeter block a vertical distance of 1.10m. and then carries the block horizontally a distance of 10.0m. How much work is done by the person? How much work is done by gravity?

168. physics

a person lifts a 4.3 kg centimeter block a vertical distance of 1.10m. and then carries the block horizontally a distance of 10.0m. How much work is done by the person? How much work is done by gravity?

169. biology

what is the importance of islands in the study of evolution?

170. math

During the dinner rush, a certain restaurant cooks about 25 pounds of spaghetti per hour. How many grams of spaghetti do they cook per second?

171. Math

What is 1/2 as a percent

10+3(1+p)=

4(7+a)-3=

174. math

what is the rate per second pf a jetliner that is traveling at a rate of 846 km/h

175. social studies

Why are ports and harbors good places for people to find jobs?

4(7+a)-3= 10+3(1+p)= 6(b-4)=

177. fractions greater than one.

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

178. math

Price: 5.49 Unit Rate: 0.04 Price: 1.50 Unit Rate: 0.02 how much would you save in one year?

179. Science

What are many of the environmental problems related to development of natural resources such as coal, oil and gas?

180. science!

What is the value of resource conservation and what are some strategies for conservation? What are some alternative energy sources that could become more mainstream?

181. Math

Sarah can make 6 bracelets per half hour. How many bracelets can she make in 1 hour? Find the factor for the conversion, pints to quarts .

182. Math

What patterns help you divide?Draw a picture or make a chart to show how to divide 1,600 by 4.Give the quotient.

183. physics

a 57 g of copper is at 12 degrees celsius, if 1012 J of energy is added to the copper, what is the final temperature of the copper?

184. English

I have to write a 1 paragraph summary on how Alfred the Great defines, and explains irony, and how is Alfred the Great an example of irony

185. statistics/probability

The supply office for a large construction firm has three welding units of Brand A and three welding units that are not Brand A in stock. If a welding unit is requested, the probability is .7 that the request will be for Brand A. Find the probability that

186. chemistry

how methane is produced or where it comes from?

187. Mechanics & hydromechanics

Find the magnitude and direction of the equilibrant of two forces, one being a horizontal pull of 18 N and the other a pull of 23 N at 50 degrees to the 12 N force.

188. social studies

people how developed th caste system

1. This occurs when an animal, object, or idea is given human form or characteristics. (1 point) literalism symbolism personification allusion 2. This occurs when you make reference to a well-known character, person, place, or event from life or

190. Chemistry

How many types of stoichiometry are there? Can you list them? Thanks I appreciate it!

191. Art

This is where an interior designer does most of her work. (1 point) in a factory at the client's home in an office in a studio

192. its urgent math i need the answer fast

Price: 5.49 Unit Rate: 0.04 Price: 1.50 Unit Rate: 0.02 how much would you save in one year?

193. Pre-AP physical science

What is the best way to set-up my science fair project that is 40% of my 2nd semester grade and credits ?? A little lost

I need help. Can someone help me to make a sentence for DIMWITTED and NEARSIGHTEDLY.

195. statistics

Two-sample Non-parametric Test Now, we examine the relationship between cry time and group among infants at Northbay. 1. Suppose we wish to perform a two-sample test, but we do not want to make any normality (or other strong parametric) assumptions.

196. Math

Given the function f(x)=5x(x-1)(x+7) FInd the largest non-negative x-value for which f(x)=0

197. math

Hello I was wondering if someone could help me with this. P=Price Q=Quantity TR = Total Revenue Price (\$) Quantity 7 0 6 100 5 200 4 300 3 400 2 500 1 600 0 700 Total Revenue = P X Q We assume a linear relationship. They said that they know the demand

198. statistics

Prospective Cohort Study The following tables show the crude and sex-specific results from a Prospective Cohort Study that examines the association between a binary exposure (E) and the development of a disease (D) during 20 years of follow-up. Full Data:

evrything

200. math

Hey please help me with this word problem! IN 5 DAYS MIKE'S GAS STATION SERVICED 20,45,100,85,&60 CARS WHAT WAS THE AVERAGE NUMBER OF CARS SERVICED EACH DAY?

201. math

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

202. social studies

During the early sixteenth-century attitudes about mineral exploitation changed due to the influence of two important books. In effect, a new dignity was ascribed to A. metal ore mining. B. coal mining. C. precious metal mining. D. precious metal importing

203. Math

Una is painting a chair She finished painting the first coat at 10:42 AM the paint needs to dry for at least 1 hour 45 min before another coat of paint can be put on at what time will she be able to paint a second coat 12:45?

204. math

how many red beads would there be a pattern with 51 blue beads?

205. Math!!!!!!!!!!!!!!!!!!!!!

Can you give me a fraction number story like a very good one please

206. Physics

a stone thrown from ground level returns to the same level of projection 4s after. with what speed was the stone thrown? Take g=10 m/s2

207. math

Draw a piece if yarn 3 counters long over a needle

208. math

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

209. Math

how many possible solutions are there to five questions and the answer to each question is either true or false?

how many possible solutions are there to five questions and the answer to each question is either true or false?

211. Math

factor √7x^2-16√7

212. math,geometry

what is the rule if the input is 1 and output is 9 and input is 2 and output is 12 and the input is 3 and output 16

213. math

tell whether the system has one solution, infinitely many solutions, or no solution: y=3x-14 y-x=10

214. Counting 8

How do I do this

215. U Hart

The 50 kg cylinder shown, which was initially at rest, rolls without slipping. when the speed of A is 20 cm\s, the speed of point B is most nearly

216. physics

A bullet of mass m=10 g is fired with initial speed vi = 400 m/s into a block of mass M=2 kg initially at rest at the edge of a frictionless table of height h=1 m as shown in the figure. The bullet remains in the block, and after the impact the block lands

217. Math

If seven of the apples in a basket are red and there are 21 apples in the basket, what percent of the apples in the basket are red?

218. Math: solving rational equation

2/x + 5/3 = 7/x

219. music

In a shift from earlier thinking, the social status of nineteenth-century composers became equivalent to that of A. lords and courtiers. B. tailors and hatters. C. woodworkers and carriage builders. D. painters and poets.

220. World history

what were the religious and sociale ffects of the counter-reformation?

221. physics

what is the kinetic energy of a 3 kg 20 cm diameter bowling ball with a linear velocity of 4m/s? (rolling and spinning)

222. math

what number has the mode of 15 the minimum of 5 maximum of 20 and median of 10

223. Fractions

would you eat more if you ate 1/3 of a small pizza or 1/3 of a medium pizza

224. english(easy!) my mind cant decide :(

what is the setting for Disney's Snow White and the Seven Dwarf?

225. Physics

how fast would you have to be traveling at in a spaceship in order to appear to age 20% slower than your classmate left behind on earth

226. Math

3 1/4 + 2 3/4 =

227. science

An object with a mass of 11.4 kg experiences a force of 13.68 N. What is the acceleration of the object?

228. Social Studies

when was the israelite found

229. science

How can you group paracrine, endocrine, and neurotransmitter into two groups? (3 different ways to condense them)

230. english

birds hidden in nests from fear of cold is this sentence correct?

231. math

which digits are in the ones place of a number multiplied by 5? a.0 or 1 b.0 or 5 c.2 or 4 d.2 or 5 Is it b????

232. math

which digits are in the ones place of a number multiplied by 5? a.0 or 1 b.0 or 5 c.2 or 4 d.2 or 5 Is it b????

233. cccs

f/-11 < 9

I want to make a 10% Lead Nitrate Reagent solution. How do I figure out how much lead nitrate to D.I. water do I use? I am making 100ml

6(b-4)=

236. Math

Find the Pythagorean triple with the following equations: m=2, n=3... I'm thinking its a no solution?

237. Math

Explain how can you use to find 2,100 divided by 3?what is the quotient?

238. music

. Beethoven's greatest psychological challenge as a composer was A. coping with his worsening deafness. B. the unrealistic expectations of his patrons. C. his resistance to finishing works he had started. D. overcoming his own perfectionism.

239. math

a boat cab travel 12 miles on 4 gallons of gasoline. how far can it travel on 15 gallons?

240. futhermath

prove that 1-t^2/1+t^2

241. hurry bedtime

4(7+a)-3= 10+3(1+p)=

242. Geometry

Assume each side of the hexagon is worth 10 units. Calculate the apothem, using the fact that it is part of a special triangle to get the answer exactly. Then use the exact value of the apothem to calculate the area of the hexagon.

243. Chemistry

Calculateenthalpychangeforthereaction2N2(g)plus 5O2 gives 2N2O5 Basedonthefollowinginformatin2H2(g)plusO2(g)gives2H2O(l)

244. physics

how far (in meters) will you travel in 3.0 minutes running at 6.0 m/s?

5/6- ?=1/3

246. science

when did the humens appear