# Questions Asked onJanuary 19, 2015

1. ## Maths Vector Helpppp

The points A and B have position vectors, relative to the origin O, given by −−→OA = i+2j+3k and −−→OB = 2i+j+3k. The line l has vector equation r = (1−2t)i+ (5+t)j+ (2−t)k. (i) Show that l does not intersect the line passing through A and

2. ## Physics

A 100N force acting on a lever 2m from the fulcrum balances an object 0.5m from the fulcrum on the other arm. What is the weight of the object(in newtons)?What is it's mass (in kg)?

3. ## algebra

What is the area of the largest rectangle with lower base on the x-axis and upper vertices on the curve y = 27 - x2

4. ## Math

The function f(x)=x^2. The graph of g(x) is f(x) translated to the right 3 units and down 3 units. What is the function rule for g(x)? I honestly have no idea how to this… An example or helping me get through the problem would be great :) Thank you so

5. ## Math

a snail is at the bottom of a well. in the first 10 minutes, the snail climbs 23 7/12 inches. In the next 10 minutes, it climbs 19 5/6 inches. How far is the snail from the bottom of the well after 20 minutes?

6. ## Chemistry

For another picnic, you want to make hamburgers with pickles, again without having any left over. You need to balance the number of packages of buns (which usually contain 8 buns) with the number of packages of hamburger patties (which usually contain 12

7. ## Chemistry

Butanoic acid (Ka = 1.52 x 10-5) has a partition coefficient of 3.0 (favouring benzene) when distributed between water and benzene. Find the concentration of butanoic acid in each phase when 20.0 mL of 0.10 M aqueous butanoic acid is extracted with 25 mL

8. ## Civics

The judicial branch Can raise taxes Can veto laws passed by congress Can confirm federal officials *** Can declare a law unconstitutional

9. ## Math

Write a rational function satisfying the following criteria. vertical Asymptote: x=-1, slant asymptote: y=x+2, zero of the function: x=3 I had f(x)=x^2+3x+2/x+1, that only works for the asymptotes and not the zero can someone please help me figure how to

10. ## Geometry

The scale on a map indicates that one inch equals 4 miles. If two towns are 3.5 inches apart on the map, what is the actual distance between the towns? 1 inch=4 miles. 3.5=x 1/4=3.5/x x=14

11. ## Civics

Which of the following statements is most likely to have been said by an Anti-federalist? The constitution is the best solution to the country's problems. This new government will be too powerful. I don't like it.*** A stronger national government will

12. ## math

A piece of cartolina is 60 cm by 48 cm.What is the least number of squares that can be cut from it with no material wasted?

13. ## Biology

Is xylem or phloem larger in a plant? My answer is xylem is larger in a plant than phloem.

14. ## Algebra

Identify the degree of each term of each polynomial. Then find the degree of the polynomial. xy^3 + 7x^3y^2 - 6xy^4 + 2 I know the degree of the first term is xy^3 is 4. I cant seem to find the second term

15. ## Ashford

A computer worm is MOST likely to attack your computer’s:

16. ## Math

arnold buys 8/9 pound of ground turkey. He uses 3/4 pound of the ground turkey to make meatballs. How many pounds of ground turkey are left?

17. ## Algebra

Write the simplified form of the expression. {q^-2/3} {q^1/3} --------------- q^4/3 Using positive exponents. ------------------------------------- Solution: {q^-2/3} {q^1/3} = q^-1/3 = 1 --------------- ------ ---- q^4/3 q^4/3 q^5 Thanks in advance

18. ## Algebra

What is the domain and range of the relation y = 2(x-5)^2 + 8? Express in set notation. --------------------------------------- Domain: x E R Range : y E R --------------------------------------- Thanks!

19. ## Math

tina, troy and nate had a total of 25 equal-sized square tiles to place over a square grid. Tina used 8/25 of the square tiles. Troy used 1/5 of the square tiles. what fraction of the square grid must Nate place the tiles on so that 1/5 of the square grid

20. ## Physics/Math

Determine the missing value. a) Output value/Efficiency: 100 J Efficiency: 100% Input E = ??? b) Input: 100 J Efficiency: 30% Output E = ?? Output= 30 J c) Output E: 120 000 J Efficiency: 2% Input E= ?? How would I solve for the put value? Thank you!

21. ## Civics

Which of the following rights would be most likely to be protected by the Ninth Amendment? Right to a public trial Protection from seizure of property Right to be protected from government interference Right to limit harmful actions by other people***

22. ## Math

lily has a bottle containing 7/8 quart of milk. She pours 4/5 of it into a bowl. What amount of milk does she pour into the bowl?

23. ## Civics

After the civil war, many former slaves started schools even though many others tried to stop the,. What amendment could the freed [people use to defend their right t educate themselves and their children? 13*** 14 15 19 I am not sure bout this one

24. ## Geometery

For triangle MNP, find the value of x and the measure of each of the three angles. at the top of the triangle is X degrees and that is angle M at the bottom left of the triangle is (2x-1) degrees and that is angle P at the bottom right of the triangle is

Activation Energy is big power that comes from doing little things solving problems knowing your own story********* serving others

26. ## Civics

Which of the following documents influenced the American colonists to feel that their rights were not being protected? Declaration of Independence U.S. Constitution English Bill of Rights*** Mayflower Compact

27. ## calculus

If 600 cm2 of material is available to make a box with a square base and a closed top, find the maximum volume of the box in cubic centimeters. Answer to the nearest cubic centimeter without commas. For example, if the answer is 2,000 write 2000.

28. ## Civics

Which of the following was grievance of the American colonists against the British government in the years before the Declaration of Independence Their representatives in Parliament were given no respect The king kept his soldiers in the colonies*** They

29. ## Gen Science 2

lightning is actually an enormous display of the concept of? A) chemical heating B) solar energy C) magnetism D) groundind

30. ## Chemistry

The following data are for a liquid chromatographic column: Length of packing (L) 24.7 cm Flow rate 0.313 mL/min VM 1.37 mL VS 0.164 mL A chromatogram of a mixture of species A, B, C and D provided the following data Retention time | Width of Base

31. ## English

I have an essay and my topic is "our views of the past change as we mature". So I am stuck on what pieces of evidence I should write about. I am thinking of writing a narrative, and I want my "mature view" to be that the world doesn't evolve around me

32. ## Math

jeremy puts an empty container under a leaking faucet. In the first hour, 3/8 quart of water collects. In the second hour, 1/6 quart of container of water collects. how much water collects in the container in the two hours?

33. ## Anal Chem

A method for the analysis of the drug diazepam in blood consistently produces results that are low by -5.4%. If the measured concentration of diazepam in a patient’s blood sample is 2.02 ppm, what must be the actual concentration in their blood (in ppm)?

34. ## Physics

Negating air resistance, a block weighing 1.0 kg will fall _________ a 3.0 kg block Answer: The same rate as

35. ## Civics

In Alabama in 1963, an African American woman named Grace Jefferson was kept from voting because she did not have enough money to pay the required taxes. What prevents this from happening today? An amendment to the constitution *** A state law The outcome

36. ## physics

The 80kg student balances a 1300kg elephant on a hydraulic lift. (U-Tube) What is the diameter of the piston the student is standing on? When a second student joins the first, the height difference between the liquid levels in the right and left pistons is

37. ## Civics

Anna is a high school student. The police came to her school and removed her purse from her locker. they told her that they suspected she was hiding illegal drugs in it. They found no drugs in it and returned the purse to her. what amendment gives the

38. ## physics

Consider two vectors ~ A and ~ B and their re- sultant ~ A + ~ B . The magnitudes of the vectors ~ A and ~ B are, respectively, 13 . 2 and 6 . 1 and they act at 110 ◦ to each other.Find the magnitude of the resultant vector ~ A + ~ B .

39. ## chemistry

A sealed container comtains 1.50 mol of nitrogen gas, 2.00 mol of oxygen gas and 3.50 mol of argon gas. If the total pressure is 900 kPa, what is the pressure of the nitrogen gas? I don't know which formula to use

40. ## Calculus

A student is drinking a milkshake with a straw from a cylindrical cup with a radius of 5cm. if the student is drinking at a rate of 3.5cm^3 per second, how fast is the level of a milkshake dropping?

41. ## physics

A truck travels 1710 m uphill along a road that makes a constant angle of 5 . 08 ◦ with the horizontal. Find the magnitude of the truck’s horizontal component of displacement. Answer in units of m.

42. ## chemistry

When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 4.8 M is required to react completely with 2.60 g of magnesium?

43. ## Civics

Which of the following describes the Enlightenment idea of natural law? The idea that people consent to government authority and in return the government protects their rights The idea that people are born with rights that no government can take away ***

Please help me with the following question: Please select the word from the list that best fits the definition Creates clouds, snow, sleet, rain and hail A. Radiation B. Conduction C. Convection D. Water Cycle I think the answer is mostly B, but I think it

45. ## science

How many litres of oxygen are needed to react completely with 25.0L of H2S at STP according to the following reaction: 2H2S + 3o2 --> 2so2 + 2H2O At STP temperature is 273 K pressure is 101.3 Kpa R is 8.314 so PV=nRT 101.3×25= n× 8.314× 273 n= 1.11 so

46. ## math

At a miniature golf course, the fourth hole involves hitting the ball through a cylindrical tube that falls to a circular green below, as shown in the illustration. The diameter of this green is 76 inches, and the diameter of the hole is 4 inches. Using

47. ## Civics

The fact that the states had to unanimously agree to changing the Articles of Confederation meant that the states would have to begin the process of making changes to the government it didn’t matter how ordinary citizens felt about the Articles of

48. ## calculus

The Snowtree cricket behaves in a rather interesting way: The rate at which it chirps depends linearly on the temperature. One summer evening you hear a cricket chirping at a rate of 160 chirps/minute, and you notice that the temperature is 80°F. Later in

49. ## Civics

The phrase "We the People of the United Sates" Reflects the idea that everyone is entitled to certain rights*** Reflects the fact that the colonist were still trying to repair their relationship with the king Reflects the fact that ordinary people were

50. ## Calculus

Use a linear approximation to estimate (8.2)^(2/3)

51. ## criminal law

What is the purpose of a grand jury issuing a true bill (criminal charge) or not.

52. ## Math

A(1,4), B(-3,8) and C(5,6) as vertices of triangle ABC a-find the slope of the line through A parallel to BC b-Find the slope of the altitude from c to ab

53. ## Math

steve picks 55 pounds of pears. He packs equal amount of pears into 6 bags. He then has 4 pounds of pears left. What is the weight of pears in each bag?

the potential difference across a load is 9V. explain what this means in more fundamental terms.

55. ## analytical chem

You have a bottle labeled “53.4 (±0.4) % w/w NaOH” with a density of 1.52 (±0.01) g/mL. You use 16.7 (± 0.2) mL of the NaOH to prepare 2.00 (±0.02) L of 0.169M NaOH. Report the absolute error for the 0.169M of NaOH. You may assume negligible error

56. ## accounting

The Bean Company makes a sale with an invoice price of \$97,000 on 10/1/14. The note is due on 10/1/17. There is no interest rate stated in the note. The market rate for similar notes is 10%. Assume annual compounding of interest. Prepare the journal

57. ## Math, Algebra

Can someone help me figure this out for my review? Find the equation of the line that passes through (2,-3) and has a slope of (5/2)

58. ## Science

What are the different evidences used to support the continental drift theory? Give at least four and provide examples for each.

59. ## polynomial

Find the polynomial in X where zeros are -2, -1 and 3. Please someone help me with this. Thanks

which of the following has lowest vapour pressure ? 1 water 2 bromine 3 ethyl alcohol 4 ether

61. ## trigonometry

A bicycle wheel has a diameter of 2 feet and turns at the rate of 70 revolutions per minute. How fast does the wheel move in feet per hour?

62. ## physics

if resultant of two forces when they act at an angle of 30 deg is 50N and when they act at 60 deg the resultant is 70N find magnitude of two forces

63. ## chem/stats

Find the absolute error for the answer of the following equation: square root of 3.24 plus-minus 0.08 end root equal 1.80 plus-minus ?

64. ## Math

johnny is jogging along a track. He has already jogged 1 2/3 miles. He plans to jog a total of 3/14 miles. How many miles does he have left to jog?

65. ## maths

Volume of prism 1296 cube cm height 16/√3cm find whole surface area.

66. ## English

Scarlet Letter Chapter 9 1.The subject of the main clause in the sentence beginning "If the latter possess native sagacity . . . " (line 68) is (A) "latter" (line 68) (B) "he" (line 70) (C) "revelations" (line 76) (D) "qualifications" (line 80) (E "soul"

67. ## math

80 boys used 60 loaves in 12 days. 120 boys needs loaves for 18 days. How many loaves will be needed?

68. ## alegebra1

The base edge of a square pyramid is 30 cm. The pyramid is 6 cm tall. Find the volume of the pyramid.

69. ## Math

12m+12=6(3m+3) My answer is -6= -6 which is identity ??? Or is it null or empty??

70. ## law

What kind of questions trigger the reading of the miranda rights? Is there a case that deals with this specific issue... whether the question asked by the police was part of an interrogation or just an informal question getting basic information? Do these

-2(3r+4)= -5r-8-r Answer I got r=r Question 2 14+8w=4(8+2w) I have 14=48. No solution

72. ## SCIENCE

1. An environmental engineer might (1 point) Create mathematical models of what may happen to global temperatures in the future. Build and maintain a marine exhibit for an aquarium. Help an oil finery reduce its toxic gas emissions.*** Stock a lake with

73. ## Human Services/ University of Phoenix

Identify three considerations that should be a part of a program and proposal pre-planning process of grant proposal writing. This is a generalized question, no particular grant application.

74. ## Algebra

a rectangular lot whose perimeter is 1600 feet is fenced on three sides. An expensive fencing along the lot's length cost \$20 per foot, and an inexpensive fencing along the two side widths costs \$5 per foot. The total cost of fencing along the three sides

75. ## Civics

Which of the following groups may be legally restricted from exercising rights generally protected by the Second Amendment? Members of the armed forces Law-abiding citizens Law enforcement officers People who have previously been convicted of murder***

-2x = -16

77. ## english - Compare and Contrast

I would appreciate it if someone would be willing to look over my essay real quick. I just would like to know if I made any critical errors. Please do not correct them just point them out so I can fix it. Thank you very much. General instructions from my

78. ## Physics

A railroad car with a mass of 2.33 × 104 kg moving at 3.71 m/s collides and 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 1.44 m/s.What is the final speed of

79. ## math

Jeremy says that the absolute value of 6 is -6.is he correct?explain

80. ## Math

In 8.061, what is the place value of 6?

81. ## Math

f(x)=x64-4x^2+k. Find the values of k so thath the zeros of f satisfy the specified charachteristics. a.four real zeros b.two real zeros, each of multiplicity of two c.two real zeros and two complex zeros d.four complez zeros a.I don't know if this range

83. ## Math

Find the interval for b such thtat the equation has a t least one real solution. i. X^2+bx-6=0 ii. 2X^2+bx-7=0 iii. x^2+bx+3=0 iv. 3x^2+bx+5

84. ## Chemistry

If equal volumes of the following are combined, would they form buffered solutions? Why or why not? 1) .1M NaC2H3O2 and .1M HF 2) .1M HF and .05M NaF I'm am a bit confused about how I can figure out if these will form buffers or not, so I'd really

85. ## Chemistry

Calculate the change in pH if 10mL of 0.1M HCl is added to the buffer made by mixing 25 mL of 1.0 M CH3COOH and 25 mL of 0.5 M CH3COONa.

86. ## Physics

Calculate the magnitude of the linear momen- tum for each of the following casesEarth (m = 5.98 × 1024 kg) moving with an orbital speed equal to 26200 m/s. Answer in units of kg · m/s.

87. ## Physics

Calculate the magnitude of the linear momen- tum for each of the following cases a) a proton with mass 1.67 × 10−27 kg mov- ing with a velocity of 6 × 106 m/s. Answer in units of kg · m/s.

88. ## Civics

Which of the following is true of the executive branch ? It can decide who gets to vote it can declare war it can decide if laws are constitutional it can conduct diplomacy***

89. ## Chemistry re-post

Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M TI3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find the endpoint. F=96486.7 Cmol E0 Sn4+/Sn2+ =0.15V E0 TI3+/TI+ = 1.28 Esce = 0.241V R=8.3141 J K Mol (a) Write the balanced

Uniform motion Related Problem Five boy scouts biked to Caliraya lake at 5 km/h. their scout master gave them a ride back home in his pickup car, at 20 kph. Find the hiking time if it 6 hors longer than their riding time.

91. ## Mathematics

If alpha,beta,gamma,delta be the roots of the equation x^4-x^3+2x^2+x+1=0,find the value of 1. (2 alpha + 1)(2 beta + 1)(2 gamma + 1)(2 delta + 1) 2. (alpha square + 1)(beta square + 1) (gamma square + 1)(delta square + 1)

92. ## Civics

A state has passed a law making it illegal for people to protest at the state capital building. You think this law is unconstitutional, but your state court system upholds it. What federal branch has the final say on whether your state law is

Uniform Motion Related Problem A car travelling at 60 kph left town at 9:00 a.m. Another car travelling at 65 kph left the same place half an hour later to overtake the first. At what time did the second car overtake the first?

94. ## criminal justice

Explain why a grand jury is used rather than the prosecutor simply issuing a criminal charge.

95. ## Criminal Justice

Discuss whether or not a defense attorney and/or the defendant can address a grand jury and provide reasoning for why a defense attorney and/or the defendant would choose to attend or not attend the grand jury proceeding.

96. ## Biology

You need to prepare 270ml of a 20% sucrose solution (w/v). Sucrose has a molecular formula of C12H22O11. How would you prepare this solution?

97. ## math

Maureen fills a cylindrical tin with sugar cookies for a gift. She plans to put a ribbon around the tin and then attach a bow onto the ribbon as shown in the illustration. The bow itself will take 15 inches of ribbon. If the diameter of the tin is 9

98. ## Criminal Justice

Based on the evidence presented by the prosecutor and the finding of probable cause that a crime was committed, discuss the purpose of a grand jury issuing a true bill (criminal charge) or not.

Uniform Motion Related Problem Chester drove his car at 8:00 a.m. at speed of 45 km/hr. At 9:15a.m. Michael followed with his car. What should be Michael's speed so as to be able to overtake Chester at 1:00 p.m.? How far has Chester travelled when Michael

100. ## Criminal Justice

1.) Provide all the procedural and substantive ways that a prosecutor and a defense attorney can resolve a case before it goes to a grand jury. 2.) Explain all the procedural and substantive dispositions of a case between a prosecutor and a defense

101. ## Biology

You have been asked to make 200ml of 50% detergent solution (v/v). How would you do it?

Uniform Motion Related Problem Two cars, 210 km apart, met each other in 2 hours. If one car travelled at 60 kph, at what rate did the second car travel?

103. ## Biology

You need 25ml of 2% milk solution (v/v. How much milk and water will you need?

104. ## ap calc

integrate ((x^2-4)^2))^(1/2) Would the 2 and the 1/2 cancel

105. ## Civics

The 1st step in adding an amendment to the constitution is the amendment being? Sent to the state legislatures by the president Voted upon by the voters of the united states Proposed by a two-thirds vote of both houses of congress Passed by three - fourths

Uniform Motion Related Problem Two cars starting from the same point travel in opposite directions. Car A travels at 80 kph and car B at 110 kph. After how many hours will the cars be 760 km apart?

Uniform Motion Related Problem Two planes leave an airport at 2 p.m., one flying south at 450 kph, the other flying north at 675 kph. At what time will they be 3 600 apart?

108. ## physics

A 18 kg block is dragged over a rough, hor- izontal surface by a constant force of 131 N acting at an angle of 27 ◦ above the horizon- tal. The block is displaced 15 . 7 m, and the coefficient of kinetic friction is 0 . 125. The acceleration of gravity

109. ## Calculus

Suppose bacteria is growing on a pizza that has been taken out of the refrigerator at a rate that is proportional to the number of bacteria. Suppose there were 50 bacteria when the pizza was removed from the refrigerator and one hour later there were 200

110. ## Biology

You have a bacterial suspension and you need to dilute it to 0.0010 of the initial concentration so that you can determine the number of colonies per milliliter. The volumes must be between 0.1 and 2 ml. Your final volume must be 1 milliliter.

Uniform Motion Related Problem Jessie has a 15 km head start on Melvin. How long will it take Melvin to catch Jessie if the latter travels at 70 kph and the former at 100 kph?

112. ## Biology

You have a stock solution of 100mg/100ml methylene blue and you need 6.0 ml of final solution at 2mg/100ml. Design a serial dilution using volumes between 0.1 and 10 ml. Final volume must be 6ml.

113. ## Science

DNA can perhaps best be compared to a(n) A. secret code or B. electrical circuit

114. ## Calculus

a student is drinking a milkshake with a straw from a cylindrical cup with a radius of 5cm. if the student is drinking at a rate of 3.5cm^3 per second, how fast is the level of a milkshake dropping?

115. ## Chemistry

Please help! If equal volumes of the following are combined, would they form buffered solutions? Why or why not? .1M HF and .05M NaF I'm am a bit confused about how I can figure out if these will form buffers or not, so I'd really appreciate it if someone

Uniform Motion Related Problem Port A is 25 km downriver from port B. At noon a tugboat leaves port B and travels upstream at 15 kph. At 3 p.m. a hyrodrofoil leaves Port A travelling upstream at 50 kph. At what time will the hydrofoil pass the tugboat?

117. ## physics

A submarine dives 196.0 m at an angle of 18.0 ◦ below the horizontal. What is the horizontal component of the submarine’s displacement? Use the coordi- nate system where positive x is to the right and positive y is up. Answer in units of m.

118. ## geometery Indirect Measurement

For triangle MNP shown, find the value of x and the measure of each of the three angles.

119. ## Civics

The most important effect of the amendments that have been added to the Constitution since the Civil War has been that more people are eligible to become citizens more people are involved in the political process *** more people immigrate to the United

120. ## Science

How could genetic engineering of plants be useful to people? Give examples

121. ## physics

A 30.0 kg block falls from a height of 30,4 m. assuming a closed system its speed just before hitting the ground is about?

122. ## Physics

A speedboat moving at 29 m/s approaches a no-wake buoy marker 98.3 m ahead. The pilot slows the boat with a constant acceleration of -3.61 m/s2 by reducing the throttle. How long does it take the boat to reach the buoy? (in s)

124. ## Geometry

ABC= (5x+40) and BDC=ax what is the value of x

125. ## AP Calc

find f(x), if f'(x)=2x-3 and the graph of y=f(x) contains the point (2,5).

126. ## Physics

A particle moves along the x axis. Its position is given by the equation x = 2.00 + 3.20t - 3.85 t2 with x in meters and t in seconds. Determine its position at the instant it changes direction. (in m)

127. ## Chemistry

If equal volumes of the following are combined, would they form buffered solutions? Why or why not? .1M HF and .05M NaF I'm am a bit confused about how I can figure out if these will form buffers or not, so I'd really appreciate it if someone could explain

128. ## chem

What volume of 0.0658 M calcium hydroxide is required to neutralize 45.10 mL of 0.0242 M nitric acid?

129. ## Civics

The Enlightenment thinkers led the Founding Fathers to believe that kings should have unlimited power over their subjects people should hold their governments accountable *** people should elect their kings there should be term limits on kings

130. ## math

Every night when Samantha came home from work she put any change she had in her pockets into a jar. One day she wanted to know how much change she had in her jar. She noticed that she had two more nickels than twice the number of dimes, and eight fewer

131. ## physics

A particle of charge +18.1C and mass 7.06 × 10-5 kg is released from rest in a region where there is a constant electric field of +414 N/C. What is the displacement of the particle after a time of 3.06 × 10-2 s? Please explain the steps, thank you.

132. ## math

integrate (Abs value(secx)^2/cscx)sinx dx

133. ## statistics

Would it be appropriate to use a random number table to select a digit for each blank square in sudoku

134. ## English

What do you think is meant by "linguistic playfulness" ?

135. ## Science

In the experiment water clock : what changes (independent variable) , how does it responds to the changes made(dependent variable), and what is being controlled (controlled variable). Pleas I really need this by today. And also my question for science fair

136. ## Math

we have 2 coins: coin 1 comes up with the probability of tails of 2/3 while coin 2 comes up with the probability of tails of 1/3 you don't know which is which so you pick one up at random and flip it . If its tails, you guess that the coin you picked up is

137. ## math

examples that shows that N is not closed under subtration

138. ## Chemistry

A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculate a) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml aliquot of this solution. moles CoSO4 = 0.001694mg/ 155 g/mol = 1*10^-6 mol Moles EDTA = 1*10^-6mol/0.025L = 0.000436 mol/L (in

139. ## health

three information technology applications--clinical decision support systems--as components of QI management.

140. ## history

15. The Articles of Confederation called for which of the following? A. The right of the legislature to assess taxes B. The Northwest Ordinance C. A single legislative body D. A chief executive

141. ## Math

How long will it take for the tub to completely empty with thte drain open and the water running at full speed? Given: it takes 20 minutes to fill the tub and 15 minutes to drain the tub when the water is on all the way, full speed.

142. ## Chemistry

A 0.200 g sample containing Cu is dissolved, and a diethyldithiocarbamate coloured complex is formed. The solution is then diluted to 50.0 mL and the absorbance measured as 0.260. A 0.500 g sample containing 0.240% Cu is treated in the same manner, and the

143. ## mathematics

Arrange the following fractions in ascending order 7/15,5/12,3/7

144. ## Earth Science

1. What measurement best describes the results of a scientific experiment regarding distance? A. 57 miles B. 500 kilograms C. 523 inches D. 51 kilometers My answer is D. Am I correct?

145. ## Math

Find inverse of f if f(x)= x^2-4x+3, (for x is smaller than and equal to 2). First prove that f(x) is one to one in the defined domain of f and then obtain the inverse function. I know how to find the inverse. We just switch x and y. so y=x^2-4x+3 becomes

146. ## Civics

The English Bill of Rights drew on the ideas expressed in the Magna Carta by suggesting that the king was bound to the will of the people as well as the law allowing for the election, rather than the appointment, of the people’s representatives

147. ## math

the question says solve for x x+3/5+4x/15=x-7/3

148. ## arithmetic

0.2[5.28-(0.7)=

149. ## Civics

According to the declaration of independence, from where do governments derive the right to govern? Themselves The creator*** Their family The governed

150. ## statistics

What is the chance of getting 50/% correct on a test with 20 questions, each question is either True or False. Assume you are blindly guessing and answer all questions

151. ## Math

Hi! Can someone help me with these? I'm suppose to verify each idenity. Thanks! 1.) 1/tanθ +tanθ=sec^2θ/tanθ 2.) secθ-1/1-cosθ=secθ

152. ## mathematics

If the sides of ∆ABC are 4,5 6 then prove that largest angle will be twice of smallest angle

153. ## alegebra

A cup of coffee milk is 35% coffee syrup with a second cup of coffee milk that is 65% coffee syrup. How many kilograms of each cup of coffee milk must be combined to get 20 kilograms of coffee milk that is 41% coffee syrup

154. ## SCIENCE

1. An environmental engineer might (1 point) Create mathematical models of what may happen to global temperatures in the future. Build and maintain a marine exhibit for an aquarium. Help an oil finery reduce its toxic gas emissions. Stock a lake with

155. ## Math

what would the graph look like for the equation f(x)=ax+b/cx+d when a>0, b0, d

156. ## School

Psychologists are interested in people's behavior and their mental processes. Psychologists believe that:

157. ## Algebra

a round trip flight of 1037.5 miles takes 7 1/2 hours. The part of the flight with the wind takes 1 1/2 less than the other part of the trip. Find the speed of the plane in still air and the speed of the wind. I have no idea how to do, can u give me a lead

158. ## Biology

Psychics and astrologers are characterized as:

159. ## physics

Shawn and his bike have a total mass of 57.1 kg. Shawn rides his bike 1.3 km in 14 min at a constant velocity. The acceleration of gravity is 9.8 m/s 2 . What is Shawn’s kinetic energy?

160. ## Algebra

a round trip flight of 1037.5 miles takes 7 1/2 hours. The part of the flight with the wind takes 1 1/2 less than the other part of the trip. Find the speed of the plane in still air and the speed of the wind I have no idea how to do this...a little bit

161. ## calc

if f'(x)=3x^2-2x+1 and the graph of f(x) contains the point (2,2). find f(x). Please help I know I need to use integration

162. ## ap calc

If f(x)= (2x+7)^(1/2), where F'(X)=f(x) and F(1)=7, then F(x)=? I know I need to use integration but I do not know how to take the anti derivative of the equation

163. ## Science

How does cell differentiation connect to other branches of science or STEAM (science, technology, engineering, art, mathematics)

164. ## Earth Science

4. Which statement best describes an igneous intrusion? A. Magma is injected into surrounding rock forming an igneous intrusion. B. Magma explodes to the surface and forms a smooth outer layer of rock. C. Magma is exported to an open area and forms iron.

165. ## Math

Yukio and his 5 friends want to keep in touch during winter vacation. If they each speak to everyone in their group once during the week, how many calls will be made?

166. ## Physics

At highway speeds, a particular automobile is capable of an acceleration of about 1.52 m/s2. At this rate, how long does it take to accelerate from 74.0 km/h to 104.0 km/h? (in s)

167. ## chemistry

14/6 c has a half-life of 5600 years. An anyalsis of charcoal from a wood fire shows that 14c content is 25 per cent of living wood. how many years have passed since fire for the wood was cut

168. ## Math

Hillside Little League has 12 teams. Each team plays each of the other team twice. How many games are played?

169. ## Physics

In coming to a stop, a car leaves skid marks 97.0 m long on the highway. Assuming a deceleration of 6.60 m/s2, estimate the speed of the car just before braking. (in m/s)

170. ## Physics

A stone is dropped from the top of a cliff. It hits the ground below after 3.12 s. How high is the cliff? (in m)

171. ## math

A survey of students determined that 14 drove to school, 28 took the bus, 8 walked, 35 shared a ride and 15 had another means of transportation to school. On a pie chart, the slice representing students who took the bus would be approximately _______

172. ## US history

Was Colorado Pro or Anti Slavery in the late 1800s?

173. ## Civics

"He has made Judges dependent on his will alone, for the tenure of their offices, and the amount and payment of their salaries" is one of the grievances listed in the Declaration of Independence? How does today's U.S government address this issue? by

174. ## True or False?

Sounds like an easy question but I just wanna be sure! :P Tides are caused by the force of inertia from the sun and moon acting on Earth. True or False? I think its false because its gravity not inertia.

175. ## Physics

A driver in a car traveling at a speed of 56.1 mi/h sees a deer 103 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime). (in

176. ## Science

Is "how did our planet form" a scientific question?

177. ## Math

List all of the quadrilaterals with exactly one pair of parallel sides. A. Parallelogram;trapezoid B. Rhombus;parallelogram;rectangle C. Trapezoid D. Rhombas;square;rectangle Is the answer B? Thank you

178. ## MATHEMATICS

A train travels 60 km at a constant speed of 40km per hour for 1.5 hours. Explain why the total distance traveled does not affect the speed?

179. ## physics

A car (mass = 750 kg) is initially moving with velocity 30 m/s. The driver slowly presses on the brakes and bring the car to a stop, traveling 50 m in the process. Calculate the force of friction between the car and the ground that brings it to a stop.

180. ## math

James needs to bring his grade up to a B (80) in reading. What does he need to get on his next quiz? Quiz 1:77 Quiz 2:81 Quiz 3:74 Quiz 4:?

181. ## chemistry

In a soda acid fire extinguisher, concentrated sulfuric acid reacts with sodium hydrogen carbonate to produce carbon dioxide, sodium sulfate and water. How many moles of sodium hydrogen carbonate are produced from a reaction of 0.4 moles of sulfuric acid?

182. ## math

Charlene is feeling a box planter with soil each bag of soil contains enough to fill 500 cubic inches at the base of the blocks planter is a 9 inch square and the sides are 18 inches tall how many bags of soil for growing need

183. ## calculus

use a linear approximation to estimate (8.2)^(2/3)

184. ## math

When looking at a quilt pattern, how do you describe the minimum number of translation of a square A. There is 16 total squares.

185. ## Civics

If the president has vetoed a bill passed by congress, what can congress do about it? Appeal to the supreme court to override the president's veto *** Encourage the American people to vote that bill onto law at the next decision. Override the veto with a

186. ## criminal law

I am having a hard time understanding how to answer this question. Discuss whether or not a defense attorney and/or the defendant can address a grand jury and provide reasoning for why a defense attorney and/or the defendant would choose to attend or not

187. ## criminal law

How does a prosecutor make the decision to charge someone?

188. ## SCIENCE

An arrow is fired vertically up lands 8 seconds later.Find: [ A] Its maximum height. [B] Its initial speed.

189. ## math

3 PART Claire and Malia are training for a race A)Claire runs 10 km in 1 hour. How many kilometers does she run in half an hour? In 2 1/2 hours? B)Malia runs 5 miles in 1 hour. How many miles does she run in half an hour? In 2 1/2 hours? C)On Tuesday,

190. ## english

What is the exposition in the book Poseidon's arrow?

191. ## cardiorespiratory fitness

The most common reason for dropping out of a cardio program is?

192. ## physical science

a diagram to show the maximum and minimum resultants

193. ## Civics

"Every bill which shall have passed the House of Representatives and the senate, shall, before it became law, be presented to the president of the united states: If he approval he shall sign it, but if he shall not return it, with his objections to that

194. ## math

Calculate the new coordinates of a block rotated about x axis by an angle of = 30 degrees. The original coordinates of the block are given relative to the global xyz axis system. A(1, 1, 2) B(2, I, 2) C(2, 2, 2) D(1, 2, 2) E(1, 1, 1) F(2, 1, 1) G(2, 2,1)

195. ## computer graphics

Write an OpenGL program that allows interactive creation of polygons via mouse input. That is, I click to create new vertices until I like the polygon, then make some indication (double click, right click, press a key, click a button; your choice) that

196. ## Chemistry (Electrochemistry)

Consider the titrtation of 25.0mL of 0.0100M Sn2+ by 0.0500M Ti3+ in 1 M HCL, using Pt and Saturated Calomel Electrodes to find the endpoint. F=96486.7 Cmol E0 Sn4+/Sn2+ =0.15V E0 TI3+/TI+ = 1.28 Esce = 0.241V R=8.3141 J K Mol (a) Write the balanced

197. ## Chemistry (Error Propagation)

Calculate, with uncertainty, and express with a reasonable number of significant figures. a) 5.4 (±0.2) – 3.7 (±0.4) = b) 6.84 (±0.04) × 0.7 (±0.04) =

198. ## Analytic Chem

You have a bottle labeled “53.4 (±0.4) % w/w NaOH” with a density of 1.52 (±0.01) g/mL. You use 16.7 (± 0.2) mL of the NaOH to prepare 2.00 (±0.02) L of 0.169M NaOH. Report the absolute error for the 0.169M of NaOH. You may assume negligible error

199. ## Chemistry

Perchloric acid, HClO4, is a strong acid. What are the pH values of the following solutions: a) 3 M perchloric acid b) 0.1 M perchloric acid c) 0.001234 M perchloric acid d) 10-5 M perchloric acid e) 10-9 M perchloric acid is the pH -log(conc. ?