# Questions Asked onMarch 13, 2013

1. ## maths-trignometry

The value of (secpi/7)+(sec3pi/7)+(sec5pi/7) is

2. ## quick math

A patio measures 12 feet by 14 feet. How many 8-inch-square paving stones are needed to pave the patio? A. 21 B. 252 C. 378 D. 168 my answer is B, but the right answer is C? can someone explain that to me thanks

3. ## Chemistry

For the reaction ? FeCl2 + ? Na3PO4 → ? Fe3(PO4)2 + ? NaCl what is the maximum mass of Fe3(PO4)2 that could be formed from 5.25 g of FeCl2 and 1.62 g of Na3PO4? Answer in units of g

4. ## english

rewrite the following sentences : Marco polo made many discoveries.The discoveries were amazing. Begin with:Marco polo........... She will win the prize.she has worked hard use :since..... They could hardly see the way.it was very dark. Rewrite

5. ## Statistics

Direct mail advertisers send solicitations (a.k.a. "junk mail") to thousands of potential customers in the hope that some will buy the company's product. The response rate is usually quite low. Suppose a company wants to test the response to a new flyer,

6. ## Algebra

Which radical expression is in simplified form? a.11y/sq rt 3 b.sq rt 6/5y c. sq rt 17/sq rt 4 d.sq rt 25/81 I think it might be B...not positive though...?

7. ## Pre-Algebra

1) Find the surface area for a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,256 ft2 b. 4,189 ft2 c. 1,089 ft2 d. 1,568 ft2 2) Find the volume of a sphere with a radius of 10 feet. Round to the nearest whole number. a. 1,257 ft3

8. ## maths-trignometry

The value of (secpi/7)+(sec3pi/7)+(sec5pi/7) is

9. ## Chemistry Lab

A student who is performing this experiment pours an 8.50mL sample of saturated borax solution into a 10mL graduated cylinder after the borax has cooled to a certain temperature, T. The student rinses the sample into a small beaker using distilled water,

10. ## ~*Math Probability*~

Which expression would you use to figure out the number of ways you can arrange the letters in the word equation? (1 point) 8! 8P4 4P8 4! Five friends are having their picture taken. How many ways can the photographer arrange the friends in a row? (1

11. ## trig

cos è = 0.9659 A = ? H = 20

12. ## biology

The Dopamine molecule cannot make ionic bonds. Edit the dopamine molecule so it now can make ionic bonds.

13. ## Physics

A mass spectrometer is used to examine the isotopes of uranium. Ions emerge from the velocity selector at a speed of 3.00 x 10^5 m/s and enter a uniform magnetic field of 0.600 T directed perpendicularly to the velocity of the ions. What is the distance

14. ## Chemistry

ou are given the following data. S(s) + 3/2 O2(g) → SO3(g) ΔH = -395.2 kJ 2 SO2(g) + O2(g) → 2 SO3(g) ΔH = -198.2 kJ Calculate ΔH for the reaction below. S(s) + O2(g) → SO2(g)

15. ## physics

Alice and Bob share a state a|++>+b|−−>, where the first qubit is Alice's and the second qubit is Bob's. Alice measures her qubit in the standard basis and sends the measurement outcome to Bob. If Bob wants his qubit to end up in the state a|0>+b|1>,

16. ## Physics

Review Conceptual Example 2 as an aid in understanding this problem. A velocity selector has an electric field of magnitude 2607 N/C, directed vertically upward, and a horizontal magnetic field that is directed south. Charged particles, traveling east at a

17. ## Physics

Before a collision, the x-momentum of an object is 8.0 × 103 kilogram meters/second, and its y-momentum is 1.2 × 104 kilogram meters/second. What is the magnitude of its total momentum after the collision? A. 1.4 × 104 kilogram meters/second B. 2.0 ×

18. ## physics (Newton's Laws)

One end of a spring is attached firmly to a wall, and a block is attached to the other end. When the spring is fully compressed, it exerts a force F on the block, and when the spring is fully extended, the force it exerts on the block is −F. What is the

19. ## physics

1. A force of 720 N stretches a certain spring a distance of 15 cm. What is its force constant? If a 60-kg mass is hang on it, how far will it stretch?

20. ## Physics

What is the momentum of a 1.5 × 103 kilogram van that is moving at a velocity of 32 meters/second? A. 46.9 kilogram meters/second B. 4.7 × 103 kilogram meters/second C. 4.85 × 102 kilogram meters/second D. 4.85 × 104 kilogram meters/second

21. ## calculus

a) If x3 + y3 - xy2 = 5, find dy/dx. (b) Using your answer to part (a), make a table of approximate y-values of points on the curve near x = 1, y = 2. Include x = 0.96, 0.98, 1, 1.02, 1.04. (c) Find the y-value for x = 0.96 by substituting x = 0.96 in the

22. ## Math

Sam ate 1/4 of the pizza. If the pizza has 8 slices, how many slices are left?

In a recent survey in a Statistics class, it was determined that only 60% of the students attend class on Fridays. From past data it was noted that 98% of those who went to class on Fridays pass the course, while only 20% of those who did not go to class

24. ## Soc. Studies

Which of the resolutions at Seneca Falls Convention was most inspired by women’s inability to own property? A.desire for improved education in order to understand property contracts B.belief that women should have voting rights in order to change

25. ## Math

The cost C in dollars of producing n yearbooks is represented by the equation C=1000+5n How much would it cost to produce 75n yearbooks?

26. ## Algebra 2

What are the mean, variance, and standard deviation of these values? Round to the nearest 10th. 92, 97, 53, 90, 95, 98

27. ## heritage hihg school

list the 13 prefixes and numerical value (exponent) in order from largest to smallest. (ex;a5 where a is the prefix and 5 is the exponent!)for u use u!

28. ## biology

when robert hooke observed cork through his compound microscope , all that he could see were empty chambers. why were hooke's chambers empty

29. ## Stats help

Which test should be used one samples t test, independent samples t test or dependent samples t test. What do you set the hypothesis as Five people who were convicted of speeding were ordered by the court to attend a workshop. A special device put into

30. ## physical science

What difference is there between the downward velocities of the skydiver who jumped out of the helicopter (with no forward velocity) and the one who jumped out of a plane (with a forward velocity of 40 m/s)?

31. ## Physics

Three parallel plate capacitors (C1,C2 and C3 ) are in series with a battery of 100 V. C1=2500 micro Farad; C2=2C1 , C3=3C1 . (a) What is the potential difference over each capacitor and how much charge is on each capacitor? Across C1 :V1 (in Volts) =

32. ## maths

An observer on top of a building 66 metres high,finds the angle of elevation to the top of a taller building to be 34 degrees.The angle of depression to the foot of the same building is 51 degrees.If the buildings are on the same ground level find the

33. ## Enhancing Children's Self-Esteem

The most important reason why teachers and teacher aides should be strong leaders in the classroom is because it a)helps students to respect authority later inlife b)gives students a sense of security and feeling of belonging c)improves students academic

34. ## Physics 11th grade 'Heat'

1) Nova, whose mass is 50.0 kg, stays out skiing for too long and her body temperature drops by 2.00 degree celsius . What is the amount of heat lost from Nova's body? (cHuman body= 3470 J/kg degre celcius) 2) Phoebe's insulated foam cup is filled with

35. ## math

the+base+jk+of+an+isosceles+triangle+hjk+is+produced+to+l+if+j+%3D69+degree+calculate+hkl&es_nrs=true&pf=p&sclient=psy-ab&oq=the+base+jk+of+an+isosceles+triangle+hjk+is+produced+to+l+if+j+%3D69+degree+calculate+hkl

36. ## Math

Lisa needs to empty 18 gallons of water from a tub into jugs that hold 0.5 gallons of water - how many jugs does Lisa need

37. ## Physics

Mason lifts a box off the ground and places it in a car that is 0.50 meters high. If he applies a force of 8.0 newtons to lift this suitcase, what is the work done? A. 0 joules B. 4.0 joules C. 4.0 × 101 joules D. 4.0 × 102 joules

38. ## Algebra

what is the simplified form of 3sq rt 5c * sq rt 15c^3? A.15c^2 sq rt 3 B.6c^2 sq rt 5 c.5c^2 sq rt 3 d.12c^4sq rt 5 I think it is A...?

39. ## Calculus

I'm extremely confused on what to do in part a of this question. Consider the curve given by x=3sin(theta), y=1+2cos(theta), 0

40. ## Algebra

A company allows 0.6% defect rate, the defect average last week was 4 items out of 4400, what is the percent difference between the allowed defect rate and the defect average rate for last week?

41. ## english

what is girl in this sentence Sarah is a very smart young girl with a bright future. Is it a predicate nominative

42. ## Chem 1

The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0g of luminol into a total volume of 75.0 \rm mL of \rm H_2O. What is the molarity of the stock solution of luminol? 1.13M Before investigating the scene, the

43. ## 3rd grade math help

Input X Output Y 1 1 3 9 5 25 write a rule for each function table 8x - 15 is this correct??? HELP

44. ## calculus

The rate of change of an investment account earning continuous compound interest is given by dA/dt=kA where k is a positive constant. The initial account value was $2500. At the end of the third year, the account value was$4200. Find the particular

45. ## arithmetic

If I cut a cake in 20 pieces & I ate 3/5 of the pieces , how many pieces did I et

46. ## Physics

A certain coaxial cable consists of a copper wire, radius a , surrounded by a concentric copper tube of inner radius c . The space between is partially filled (from b out to c ) with material of dielectric constant K. The goal of this problem is to find

47. ## Physics 11

If two objects weighing 5 kg and 7 kg are dropped from a height of 64 m and 36 m, respectively. What will be the ratio of times taken to reach the ground? Thanks.

48. ## biology

Which of the following bond types is Fexofenadine capable of forming with a suitable partner molecule? Indicate your answer by checking "Yes" or "No" as appropriate. Bond type Can Fexofenadine form this bond? Hydrogen Bond Ionic Bond van der Waals forces

49. ## Chemistry

50 grams of water at 85ºC were passed through one side of a two-compartment heat exchanger. Sixty-five grams of 30ºC were passed through the other side. Both streams of water came out at 50ºC Calculate the amount of heat given up by the hot water and

50. ## Chemistry

Calculate the pH of a solution that is 0.124 M C2H5NH2 and 0.124 M C2H5NH3Cl. (Assume that the solution is at 25°C.)

51. ## Chemistry

Consider a solution that contains both C6H5NH2 and C6H5NH3+. Calculate the ratio [C6H5NH2]/[C6H5NH3+] if the solution has the following pH values. (Assume that the solution is at 25°C.) (a) pH = 4.70 (b) pH = 5.26 (c) pH = 5.42 (d) pH = 4.96

52. ## Chemistry

Calculate the pH after 0.013 mole of gaseous HCl is added to 272.0 mL of each of the following buffered solutions. (Assume that all solutions are at 25°C.) (a) 0.080 M C5H5N and 0.19 M C5H5NHCl (b) 0.72 M C5H5N and 1.52 M C5H5NHCl

Lotto result

54. ## math

need a function table for this problem x^3-3=y

55. ## stats

use dependent samples t test. Set hypothesis so what formula will I use to solve Five people who were convicted of speeding were ordered by the court to attend a workshop. A special device put into their cars kept records of their speeds for two weeks

56. ## English

I am still having a few problems with capitalizations. I the sentence below should I capitalized riding lawn equipment, commercial mowing equipment and golf products. Please include a site where I can review capitalizations. I have worked on successful

57. ## spelling

There was a huge between the two canadates. Which acscented sylable would be the right one? CONflict or conFLICT [big letters are the accscented sylabble.]

58. ## Math/Geometry

Two circles of radius r1 and r2 are extenally tangential to each other and are also externally tangential to a staight line l. Another circle of some unknown radius is externally tangential to both the circles and to the straight line l. Find the adius of

59. ## Chemistry

The number of moles NaOH needed to reach the equivalence point is mol, which means we must add liters of NaOH. The total volume of solution at the equivalence point will be liters. From the above information, the molarity of NaF at the equivalence point is

60. ## Science

At a given temperature and pressure, the volume of a gaseous sample is directly proportional to the moles of gas (volume = C * moles, where C is a constant). Assuming that the tempreature and pressure is the same for the reaction of magnesium with HCl(aq)

61. ## Science

At a given temperature and pressure, the volume of a gaseous sample is directly proportional to the moles of gas (volume = C * moles, where C is a constant). Assuming that the tempreature and pressure is the same for the reaction of magnesium with HCl(aq)

62. ## Science

At a given temperature and pressure, the volume of a gaseous sample is directly proportional to the moles of gas (volume = C * moles, where C is a constant). Assuming that the tempreature and pressure is the same for the reaction of magnesium with HCl(aq)

63. ## geometry

A right triangle prism has a volume of 2 cubic inches. A second right triangle prism is similar to the first one and has a volume of 128 cubic inches. A. What is the scale factor to go from the first prism to the second? B. What is the scale factor to go

64. ## mechanics

(b) A boat heads North at 2.4 ms-1 across a river that flows East at 1.6 ms-1. (6 marks each) (i) Calculate the resultant velocity of the boat. (ii) The river is 30 m wide. What is the displacement from the starting point when the boat reaches the far

65. ## mechanics

(a) A boat moves forwards at 10.0 ms-1. You walk across the deck at 1.5 ms-1 at an angle of 30„a (i) What is the forward component of your velocity relative to the boat? (ii) What is your total forward velocity?

66. ## maths

onvert the following to scientific notation: (i) the distance to the sun, 149 500 000 000 m (ii) the wavelength of yellow sodium light, 0.000 000 5893 m (iii) the radius of an atom, 0.000 000 000 2 m

67. ## Soc. Studies

How were the abolitionist and women's rights movements related? A.The abolitionist movement was patterned on the women's rights movement. B.The two movements competed for resources. C.The two movements had entirely opposing underlying philosophies. D.Many

x-7/7x-9

69. ## math

1. solve the following inequality to find a range of values for x: -11 < -4-x < -7 2. solve the following inequality to find a range of values for x: -25 < -x < -10

70. ## College physics

A toroidal solenoid has a mean radius of 8.00cm and a cross-sectional area of 4.80cm^2 and is wound uniformly with 90.0 turns. A second coil with 500 turns is wound uniformly on top of the first What is the mutual inductance of these coils?

71. ## English

Choose the sentence in which the comma helps make the meaning clear. (1 point) a.If you call, them the dogs will come back. B. If you call them, the dogs will come back. c. If you call them the dogs, will come back. d. If you call them the dogs will come,

72. ## Physics

A ball with a mass of 0.50 kilograms is moving at a speed of 1.8 meters/second along the positive x-axis. It collides with another ball of the same mass travelling at a speed of 2.0 meters/second toward the positive y-axis. Both balls then start moving

73. ## science

In an atom, electrons ____. a.are located in the nucleus b.are paired with neutrons c. travel outside the nucleus d. are always in the same place in an atom I think its d right?

74. ## English

Is this a correct parallel structure....? The racehorse Boundless was not only fast but also a beauty.

75. ## English

Is this correct parallel structure?... When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects....

76. ## English

Is this correct parallel structure?... When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects....

77. ## ms .sue pls hellp

how does free radicals and anti oxidant work?connected to bromelain.

78. ## MATH- HELP

If you multiply 100!*200!*300!, how many 0s are there?

asked by K - NEED HELP
79. ## math

What is the MAD of 3,2,1,0,0.5,1,2,3

80. ## math

What is 1/4 of 20 pennies

81. ## Math

Which two sqare roots are used to estimate 47 ? (1 point)

82. ## english

6. Anxiety is to test as procrastination is to: A. online learning. B. time management. C. goal setting. D. reading I'm confused between B, C 7. The first step toward making a change in time management is to: A. keep your eye on the clock. B. enlist

83. ## English

Parallel Structure?....Benjamin Franklin was both a statesman and an inventor.

84. ## Physics 11

Displacement is given by x=2+3t+4t². Find the value of instantaneous acceleration.

85. ## English

At the fair, not only can I eat tasty food, but I can also see awesome fireworks. Parallel Structure?....

86. ## English

1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2.

87. ## english

Is this a complete sentence or a fragment...... Smite a scorner, and the simple will beware.

88. ## Science

Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35 kg start at rest and slide for 5.0 s down a hill. The force of gravity pulling the children and sled down the hill is 470 N but the snow provides a frictional force of 325 N. At the

89. ## Science

Two children, m1 = 50 kg and m2 = 55 kg, and a plastic sled of mass 35 kg start at rest and slide for 5.0 s down a hill. The force of gravity pulling the children and sled down the hill is 470 N but the snow provides a frictional force of 325 N. At the

90. ## early childhood

which of the following is best suited to a formative assessment of progress 1. muscular strength snd endurance 2. body fat analysis 3. flexibility 4. qwareness of self and space

91. ## public health

select two challenges associated with multicultural leadership. As a scholar-practitioner in the field of public health, think about strategies you may use to address these challenges. Consider how your public health leadership philosophy may contribute to

92. ## Social Studies

What would be abolished if the limits of the Constitution did not restrict officials?

93. ## English III

Which of these was not a prime reason why Whitman chose to write in free verse? A. to express his individuality B. to celebrate democracy C. to convey a sense of freedom D. to imitate earlier poets he admired

94. ## english

Is mommy the indirect object The girls baked mommy some brownies for Mothers day.

95. ## english

what is smooth in this sentence The lake is finally smooth tonight after everyone rode jet skis and boats.

96. ## French

I should circle the most appropriate subject: 1) Maxime/elsa est née à paris 2) mon frere/ma sœur. S'est engagé dans la lutte contre le sida 3) mes parents/ mes cousines. Se sont installées en gualdeloupe 4) ils/elles sont partis au concert

97. ## geometry

What is 2(1x1/2)+2(1x1/4)+2(1/2x1/4)

98. ## english

what is girl in this sentence Sarah is a very smart young girl with a bright future.

99. ## math

input ___ 16 22 50 8 30 output 10 11 14 28 ___ 18 please help me solve this.

100. ## math

input 2 ___ ___ 7 15 6 output 11 20 35 26 50 23 please help me solve this.

101. ## math

12 people are playing in a tennis comprtition.Each person must play one game against each other person.how many games are played altogether ? is it 12^11 divided by 2 = 66 thanks

102. ## math

input 10 15 21 6 29 ___ output 12 22 ___ 4 50 2 please help me solve this

103. ## english

The lake is finally smooth tonight after everyone rode jet skis and boats. is smooth the predicate adjective

104. ## math

input 5 ____ 10 1 20 22 output 15 19 25 7 ___ 49 please help me solve

105. ## can some1 plz recheck my answers

1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2.

106. ## math

input 5 ____ 10 1 20 22 output 15 19 25 7 ___ 49 please help me solve

107. ## math

use all digits from 1 - 9 inclusively to make a 3 by 3 magic square.each row ,column and diagonal has the same total

108. ## Art

This art movement presents a celebration of the American wilderness and the West. A.American seascape painting B.American landscape painting C.American portraits D.pioneer painting my choice - D...?

109. ## Art

Art to inspire hope is called A.spiritual art. B.watercolor art. C.celebration art. D.western art. I can't decide between A and C...and I can't find it in the book anywhere. Help

110. ## mace

Simplify each expression using the rules of exponents and examine the steps you are taking.Incorporate the following five math vocabulary words into your discussion. Product rule Principal rooot Quotient rule Reciprocal nth root (a^1/2 b) ^1/2 (ab^1/2)

111. ## math

if i cross multiply 1/2*4/22 what will i get.... just really need an example

112. ## Algebra 2

Susan keeps track of the number of tickets sold for each play presented at the community theater. Within how many standard deviations of th mean do all the values fall? 135, 71, 69, 80, 158, 152, 161, 96, 122, 118, 87, 85. 3 4 5 2

168. ## Chemistry

Which of the following combinations of atomic orbitals can combine to form sigma bonds? s-s s-p p-p hybrid orbital - hybrid orbital hybrid orbital - s hybrid orbital - p

169. ## Chemistry

How much energy is required to melt and heat 25 grams of ice at 0ºC to 25ºC?

170. ## Science

What type of informatin to put in a plant cell essay?

171. ## Chemistry

An insulated container has 54 grams of 90 ªC water. How much ice is required to lower the temperature of 50ºC? No ice remains.

172. ## physics

calculate the uncertainty of the coefficient of friction. avg. ì=.574

Stacy has a spinner (1-4) and a number cube (1-6). After spinning and rolling the number cube, she will add the two numbers. What is the probability that the sum of the numbers from the spinner and number cube will be 3 or 4?

174. ## Math

The clementine had 12 sections. Noah at 3/4 of them. How many sections are left?

Input X Output Y 1 1 3 9 5 25 write a rule for each function table 8x - 15 is this correct??? HELP

176. ## algebra..

If f(x)=2x+5 and g(x)=8−3x^2, what is the value of f(g(4))−g(f(4))?

177. ## geometry!

Γ is a circle with center O. A and B are points on Γ such that the sector AOB has a perimeter of 40. Amongst all circular sectors with a perimeter of 40, what is the central measure of ∠AOB (in radians) of the sector with the largest area?

178. ## Physics

A 100 kg car traveling at 40 m/s bounces off a stationary 300 kg car-recoiling at 20 m/s after the collision. What is the change in momentum during the collision (in kgm/s)?

179. ## algebra

What is the maximum value of x that satisfies x/4+5≤20?

180. ## Chemistry

Indicate the concentration of each ion or molecule present in a mixture of 45.5 mL of 0.274 M NaCl and 65.5 mL of 0.0246 M (NH4)2CO3. Assume that the volumes are additive. [Cl-] [NH4+] [CO32-]

181. ## CALculus

A train driver is driving along and he suddenly puts on the brakes. After he holds the brakes for t seconds, the train's sliding distance can be measured as d(t)=30t−0.6t^2 (in meters). When the train stops, how far did the train slide (in meters) after

182. ## biology

Caffeine is the most widely used stimulant in the world today. This naturally produced molecule is found in popular beverages from coffee to black tea to Coca Cola. Although humans use caffeine to ward off drowsiness, the caffeine produced by plants makes

183. ## Physics

A 40 lb football player runs at 12 mph into a 60 lb player(initially at rest). How fast do the two move after the collision?

184. ## biology

The micelle and the liposome are two structures formed by phospholipids in an aqueous environment. They are represented here in cross section. The letters A, B, C, and D represent different regions. Four different molecules are shown below. For each,

185. ## statstics

The lengths of the eggs of a species of bird are roughly normally distributed, with a mean of 32 mm and an SD of 1.2 mm. 1.Approximately what is the 99th percentile of the lengths? Give your answer in mm but please do not enter the units. 2.Approximately

186. ## Limits-Rationalizing

lim x->1 (1-(1/x^3))/ (1-(1/x^2)) I keep seeming to get a denominator of zero when I rationalized the denominator.

187. ## math

how do i round each of the folllowing to one significant figure and then 'name' that number: 2^200 20^20 please help and thank u so much if u do!

188. ## Vertical Tangent

lim x->0+ for 1/1+ (5^(1/x)) I think there's no limit, since there is a vertical tangent at 0, is this correct?

189. ## Math

What outcome is more likely than 2? Using the spinner

190. ## geometry

Alexa has 200 square inches of wrapping paper left. Which is the side length of a cube she could not cover with the paper?

191. ## Science

1.0 g of copper was heated in a crucible, while stirring, and .2g of unreacted copper was recovered usoing hydrochloric acid as a solvent, how much copper would precipitate when zinc is later added to the copper oxide/acid solution?

192. ## English II

Revise the following paragraph until you can answer yes to each of the questions listed below. After you are finished, copy the revised paragraph in the space provided. 1. Does the paragraph have a clear purpose, and does each sentence contribute to that

193. ## math

There are 19 boys and 19 girls in the school pep band. If Trey randomly selects a member of the pep band to interview for the school newspaper, what is the probability that he will select a girl?

194. ## Physics for engineers

A bowling ball weighing 71.3 is attached to the ceiling by a rope of length 3.73 . The ball is pulled to one side and released; it then swings back and forth as a pendulum. As the rope swings through the vertical, the speed of the bowling ball is 4.60 .

195. ## Earth Science

Write a paragraph explaining the connections between plate boundaries, forces and faults.

196. ## math

4^(3/2)how do you solve as exponent.

197. ## English

1. He planned hard to go on a trip. 2. He planned very hard to go on a trip. (Are both grammatical? Is 'planned' an a transitive or an intransitive verb?) 3. He hoped earnestly to go abroad. 4. He hoped very earnestly to go abroad. 5. He hoped to go abroad

230. ## calculus

find the exact length of the curve y = ln(1-x^2), 0

231. ## pos and neg inf limits

x-> + infinity (x-sqrt(x^2-3x)) for this i got 3, because after it is rationalized i got 3x/x= 3 x-> - infinity (3x^2+4x+2)/(5-x+x^3) i got 3/x , and zero as the final answer are they right. thank you.

232. ## Life Orientation

what, according to the Basic conditions of Employment Act applied with regard to the contraventions that identified?

233. ## math

(w+9)^3+56=0 write were w i a real number write answer in simplified radical form write b^2/3 as a radical expression

234. ## trig

A road runs from the base of a mountain. From two points 235 meters apart on the road, the angles of elevation to the top of the mountain are 43 and 30. how high above the road is the mountaintop?

256. ## Chemistry

If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 25°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 35°C to 53°C?

257. ## physics

Assume the proton is at rest initially. The charge on the proton is 1.602×10−19 C and its mass is 1.67 × 10−27 kg. If the magnetic ﬁeld is 2.85 T and the potential diﬀerence is 2.29 MV, ﬁnd the magnitude of the force on the proton after the

258. ## Science

What happens to make ice change into liquid and why does liquid water become a gas?

259. ## True/False

A function is continuous at a point if its limit exists at that point. I think it's false because of the counterexample of one-sided limits?

260. ## statistics

The Engineering Department Claims the Average Battery Lifetime is 500 Minutes. You wish to check whether the lifetime is different from 500 Minutes. What type of hypothesis test is it going to be?

261. ## math

1. solve the following inequality to find a range of values for x : -18 < x -7 < -6 2. solve the following inequality to find a range of values for x : -96 < -12x < -12

262. ## math

If two additional heart rates were added to the data, how would you get the mode to decrease?

263. ## algebra

From a point on a straight road, John and Fred ride bicycles in opposite directions. John rides 10 miles per hour and Fred rides 12 miles per hour. In how many hours will they be 55 miles apart?

264. ## math

The swimming pool that Calvin goes to has dimensions 20 meters long, 8 meters wide and 3 meters deep. What is the volume of water (in m3) that the swimming pool contains?

265. ## chem

what is the percent yield if 27 g of h20 obtained when 33 g of c3h8 reacts with 56 L of 02 at STP.The secong product of reaction is CO2

266. ## Physics

A rod made from a particular alloy is heated from 22.0°C to the boiling point of water. Its length increases by 8.15 10-4m. The rod is then cooled from 22.0°C to the freezing point of water. By how much does the rod shrink?

267. ## True/False-2

A function can be continuous at every point of a deleted neighborhood of some point and still not have a limit at the point which is deleted. I'm not even too sure what this means in calculus terms. Can you please explain it better? Thank you.

268. ## Geometry

If EF=2x-19, FG=3x-15, and EG=26, find the values of x, EF, And FG

269. ## physics

At a fabrication plant, a hot metal forging has a mass of 74 kg and a specific heat capacity of 430 J/(kg·C°). To harden it, the forging is quenched by immersion in 710 kg of oil that has a temperature of 32°C and a specific heat capacity of 3000

270. ## Math

A trainer for a professional football team keeps track of the amount of water players consume throughout practice. The trainer observes that the amount of water consumed is a liner function of the temperature on a given day. The trainer finds that when it

271. ## maths

Evaluate (3.00¡Á¡¼10¡½^12 )¡Á(2.40¡Á¡¼10¡½^(-20) ))/(8.00¡Á¡¼10¡½^(-1)

272. ## math question

-The product of all the positive factors of 20 ( including 20) can be written2^x.5^y. Find x+y. -The number 18 is equal to 2 times the sum of its digits: 1+8=9. 2x9=18. There are 4 two digit numbers that are equal to 4 times the sum of their digitss . Find

273. ## maths

(c) Given that 1 inch = 2.54 cm exactly, express the speed of light, 3.00 „e 108 m/s, in (3 marks each) (i) ft/ns (ii) mile/s

274. ## english

i will be thankfull to you,if you help me correct my sentences. 1.)complete the sentences with correct form of words: The ball ______(fly)out of his hand like a bullet and______(hit)third slip,who_____(not look),full pitch on the knee cap.With a yell of

275. ## social studies

Which of the resolutions at Seneca Falls Convention was most inspired by women’s inability to own property? A.desire for improved education in order to understand property contracts B. belief that women should have voting rights in order to change

276. ## chemistry

Container A holds 767 mL of ideal gas at 2.50 atm. Container B holds 144 mL of ideal gas at 4.70 atm. If the gases are allowed to mix together, what is the resulting pressure?

277. ## maths

(a) A car accelerates from 0 to 30.0 m s-1 in 6.0 seconds, travels at a constant 30.0 m s-1 for 21.0 seconds, and then brakes to a stop in 3.0 seconds. (i) Draw a velocity-time graph illustrating this motion (ii) Calculate the acceleration (assumed

278. ## english

rewrite the following sentences 1.)Pia said,"Don't try to be smart.Ria,but just tell the fact". end with:...........the fact. 2.)They decided to buy the shoes .They were expensive but well made. Combine using:although and because 3.)Only a millionaire can

279. ## earth science

Which type of sedimentary rock is formed from fragments of minerals or rocks? (Points : 3) clastic chemical intrusive organic

280. ## Chem

If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 25°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 35°C to 53°C?

281. ## english

write a correct word: ancient man believed thunder and__to be the sign of gods fury.(lightening,lightning) the police suspected that the evidence had been ____with{tempered,tampered) she had to speak so loudly and for so long that her throat

282. ## Java programming

can you show me where is the wrong for this program..because it contains error..i don't know where is it wrong..help..tq.:) import java.util.Scanner; public class BMR { public static void main(String[] args, int x) { Scanner keyboard = new

283. ## maths

(b) A stone is thrown straight up with velocity 14 m s-1 Calculate (i) The time taken for the stone to reach the top of its motion (ii) The time taken for it to reach the ground again (iii) The maximum height it reaches (iv) What is the velocity of the

284. ## math

What is the sum of all the possible values of a for which 25x^2+(a−15)x+9 has exactly one distinct real root?

285. ## physical science

a bot throws a cricket ball witg an initial velocity of 5m.s from the edge of a tall building.it passes the edge of the building on its way down and strikes the ground below after 5seconds (neglect effects of friction. question1...how does the acceleration

286. ## math

In a bowl there are 3 apples and 9 bannanas. What fraction of the total pieces of fruit are apples?

287. ## Soc. Studies

What progress was made towards women's equality in the 1800s? A.Women obtained the suffrage, or right to vote, in federal elections. B.Many gains were made in the area of women's education during this period. C.Women were granted full equality with men

288. ## physical science

a bot throws a cricket ball witg an initial velocity of 5m.s from the edge of a tall building.it passes the edge of the building on its way down and strikes the ground below after 5seconds (neglect effects of friction. question1...how does the acceleration

289. ## Physics 11

A man jumps from a great height and falls freely to the Earth. Another man jumps from the same height 1 s later. How much are the two men separated by, 2 s after the second man jumps? I'm not sure exactly how to tackle this question. I'm sure I'm making it

290. ## Chemistry

2AgNO3 + BaCl2 --> 2AgCl + Ba(NO3)2 How many grams of sliver chloride are produced from 5.0g of sliver nitrate reacting with an excess of barium chloride?

291. ## Chemistry

N2 + 3H2 --> 2NH3 how many grams of ammonia is produced in the reaction?

292. ## math

The length of time that it takes for a pendulum to make one complete swing depends on the length of the pendulum. The time in seconds, T, is related to the length in meters, L, through the equation: T=2π√((L)/(9.8)) [it is all under square root] Q1:

293. ## College Physics

A 22 μF capacitor and a 5.20 mH inductor are connected in series with an open switch. The capacitor is initially charged to 6.70 μC. What is the angular frequency of the charge oscillations in the capacitor after the switch is closed? W = _____ rad/s

294. ## math

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle. So confused on how to do this problem please help me thanks.

295. ## Math, Fraction

raven found 30 coins. 1/6 of them were pennies, 1/5 of them weere nickels, 1/3 of them were dimes, and the rest were quarters. tell how many of each coin.

296. ## English

I am both a quick worker and careful. is this a correct parallel sentence

297. ## Chemistry

If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 25°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 35°C to 53°C?

asked by Faith (Pls Help) (Would Trully Appreciate it)
298. ## accounting

I need to ask some opinion about this question. determine whether the description refers to solo proprietorship, partnership or corporation. 1. Jo Chen & Al Fitch own Financial services provider. Neither Chen nor Fitch has personal responsibility for the

299. ## math

Nina finished 4/8 of her homework before dinner. Ed finished 7/8 of his homework before dinner.Look at the models to compare. Who finished more homework?

300. ## math

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle. So confused on how to do this problem please help me thanks.

301. ## chemistry

lewis structure of HOCH2S-

302. ## math

The dimensions of circle B are three times the dimensions of circle A. The area of circle A is 49 cm2. What is the area of circle B?

303. ## physics 11

Displacement i sgivenby x=2+3t+4t2. Find the value of instantaneous acceleration.

304. ## math

Rafael walked mile 2/3 mile and then rode his scooter 5/6 mile. Look at the models to compare the distances. Which distance is farther?

305. ## English

Homework Help: English Posted by rfvv on Tuesday, March 12, 2013 at 6:29pm. Posted by rfvv on Tuesday, March 12, 2013 at 5:35pm. Posted by rfvv on Monday, March 5, 2012 at 7:39pm. Try hard to succeed. (What is the part of speech of 'to succeed'? Is 'to

306. ## algebra

express R as rational expression 1/R=1/R2+1/R2+1/R3 R FOR R1=5 OHMS R FOR R2=4 OHMS R FOR R3=10 OHMS

307. ## Math (algerba 1)

(4 X 10 to the -5th power) to the 2nd power. How would I solve this?

308. ## macroenomics

Suppose the minimum wage is above the equilibrium wage in the market for unskilled labour. Using a demand and supply diagram of the market for unskilled labour, show the market wage, the number of workers who are employed, and the number of workers who are

309. ## math

Maria swims for 4/5 mile.Then she runs for 2/4.Which distance is farther?

310. ## Thermodynamics

Water vapor was flowing through the pipeline at 0,8 MPa pressure and 250 °C temperature. A cylinder-piston mechanism with a spring was attached to the pipeline with a closed valve. The valve was opened and the pressure inside the cylinder increased up to

311. ## physics

A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700 {\rm kg}, and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to

The line “Where water is not thirsty” is an example of which type of figurative language? (1 point) a. symbol b. metaphor c. simile d. personification I choose d because give human quality to animal, object, or idea right?

313. ## Physics

What is the final equilibrium temperature when 7 g of milk at 5C is added to 117 g of coffee at 68C? Assume the specific heats of milk and coffee are the same as that of water, and neglect the specific heat of the container. Answer in units of C

314. ## English

Goal setting: A. is only important in online learning. B. gives direction and standards for achieving one’s purpose. C. is keeping in mind what you want to do. D. is simply writing what you want to achieve and then put it away. is it B

315. ## Chem

Caculate the volume of CO2 gas given off at 756 mm Hg and 23C when 150 kg of limestone(CaCO3) is heated until it decomposes according to the following reaction:CaCO3(s)=CaO(s)+CO2(g)

316. ## Pre-Algebra

For numbers 1–3, find the indicated measurement of the figure described. Use 3.14 for (pi) and round to the nearest whole number. 1) Find the surface area of a sphere with a radius of 8 cm. a. 268 cm2 b. 804 cm2 c. 2,144 cm2 d. 201 cm2 2) Find the

317. ## geometry

prove that rectangles do not exist in hyperbolic geometry

318. ## geometry

If the measure of ÐDAB = 50°, and ÐDAC = 20°, what is ÐCAB?

319. ## English

Setting goals is futile if: A. you do not stick to it. B. you are committed. C. you are only motivated by others. D. you do not do it right. i think its A right?

320. ## algebra

A boy walked for 4 hours and cycled for 3 hours,covering a total distance of 74 kilometers,later he walked for 2 hours and cycled for 4 hours ,covering 82 kilometers,what were his average speed of walking and his average speed of cycling if his speed was

321. ## math help please ASAP

The ______ system uses all of your body’s senses to help maintain homeostasis. Is the answer "control"? Or is it "endocrine"?

322. ## English

1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2.

323. ## english

please what is the reader responses in life is funny is a story

324. ## College Chemistry

Calculate activities of Ca2+ and F- and the solubility of fluorite (CaF2) in pure water at 25C without regard to possible hydrolysis. Assume that all activity coefficients are equal to one. Express the solubility of fluorite in terms of mol/L and g/L.

325. ## Chemistry

Calculate the molarity of a solution made by dissolving 16.0 grams of Na2CrO4 in enough water to form exactly 555 mL of solution.

326. ## chemistry

if 150 grams of water is heated from 20 degrees C to 30 degrees C, the number of joules of heat energy aborbed is?

Describe a business situation, other than what has already been selected by fellow students or selected from the team assignment, where mean and standard deviation can be used in decision making. Describe how calculation of mean and standard deviation can

328. ## Calculus

A manufacturer produces bolts of fabric with a fixed width. The quantity q of this fabric (measured in yards) that is sold is a function of the selling price p (in dollars per yard), so we can write q = f(p).Then the total revenue earned with selling price

329. ## Math

An oil-drilling company knows that it costs $25,000 to sink a test well. If oil is hit, the income for the drilling company will be$375,000. If only natural gas is hit, the income will be \$165,000. If nothing is hit, there will be no income. If the

330. ## Math

If you multiply 100!*200!*300!, how many 0s are there?

331. ## Math question

I know these really well, but ive tried alot and couldn't get the same answer as the book.! 1-(3x/2)

332. ## english

2. Efficient time management is essential to get things done because time: A. is a limited resource. B. is stressful. C. costs money. D. is a way to control our disorganization. is it D 3. One way to look at goal setting is: A. it is an exercise in

333. ## Music

I have this talent show slip I need to fill in for until next week. We need appropriate songs if we are going to sing or dance. I wanted to know if "Like a G6" is approapiate.

334. ## CHEMISTRY

If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 25°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 35°C to 53°C?

asked by Faith (Pls Help) (Would Trully Appreciate it)
335. ## Algebra

A gardener is mowing a 20 by 40 yard rectangular pasture using a diagonal pattern. He mows from one corner of the pasture to the corner diagonally opposite. What is the length of this pass with the mower? Give your answer in simplified form. A.10 sq rt 20

336. ## CHEM

If 7.60 kJ of heat is needed to raise the temperature of a sample of metal from 10.°C to 25°C, how many kilojoules of heat will be required to raise the temperature of the same sample of metal from 35°C to 53°C?

asked by Faith (Pls Help) (Would Trully Appreciate it)
337. ## physics

A 2.7-kg box is released on a horizontal surface with an initial speed of 2.9 m/s.It moves on the surface with a deceleration of 0.27 m/s^2.Calculate the kinetic friction force on the box

338. ## English

5. Managing time means: A. keeping an eye on time. B. knowing and monitoring how you spend and use time. C. scheduling your activities. D. listing things to do. I think its D 6. Cramming for exams and turning in late assignments are good indications of the