# Questions Asked onApril 10, 2014

1. ## Math Help Please? c: Thank you :3

At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random? A) You survey customers at the local shopping mall. B)

2. ## Science

Your are studying an evergreen tree that produces cones. The tree is an? -Angiosperm -Gymnosperm -Gametophyte -Monocot

3. ## Chemistry

Elemental calcium is produced by the electrolysis of molten CaCl2. a) What mass of calcium can be produced by this process if a current of 7.5 * 10^3 A is applied for 48h? Assume that the electrolytic cell is 68% efficient. b) What is he minimum voltage

4. ## English III

Lesson 6.07 Letter to a Citizen of Kentucky, an excerpt Executive Mansion, Washington, April 4, 1864. A. G. Hodges, Esq., Frankfort, Ky. My Dear Sir: You ask me to put in writing the substance of what I verbally stated the other day, in your presence, to

5. ## Chemistry

A buffer solution is prepared by mixing 50.0 mL of 0.300 M NH3 with 50 mL of 0.300 NH4Cl. The pKb of NH3 is 4.74. NH3 + H2O-> NH4+ +OH- 7.50 mL of 0.125 M HCl is added to the 100 mL of the buffer solution. Calculate the concentration of NH3 and NH4Cl for

6. ## Math/pre algebra

What are the answers to why is a hill like a lazy dog?

7. ## Chemistry

A student was given a solid containing a mixture of nitrate salts. The sample completely dissolved in water, and upon addition of dilute HCl, no precipitate formed. The pH was lowered to about 1 and H2S was bubbled through the solution. No precipitate

8. ## physics help!

A uniform stationary ladder of length= 5.1 m and mass= 15 kg leans against a smooth vertical wall, while its bottom legs rest on a rough horizontal floor. The coefficient of static friction between floor and ladder is μ = 0.41. The ladder makes an angle

9. ## CHEMISTRY HELP !!!!

NH4CL , ZNCL2 , KAL(SO4)2 FIND THE FOLLOWING NET IONIC EQUATION FOR HYDROLYSIS EXPRESSION FOR EQUILIBRIUM CONSTANT (KA OR KB) VALUE THANK YOU SO MUCH!!!

10. ## Chemistry

During the discharge of an alkaline battery, 4.50 g of Zn is consumed at the anode of the battery. a) What mass of MnO2 is reduced at the cathode during this discharge? b) How many Coulombs of electrical charge are transferred from Zn to MnO2?

11. ## Spanish

Are my answers correct? Parte I: Conteste las preguntas en frases completas en español 1. ¿Qué significan las palabras te y té? Te es un pronombre, mientras que el té es una bebida. 2. ¿Prefiere Ud. usar el tiempo futuro o IR A + infinitivo? ¿Por

12. ## social studies

The mighty amazon River of South America carries blank of the worlds fresh water. A:2% B:5% C:20% D:60% I think it is c or d not sure

13. ## Chemistry

Write ionic equation for the following: A. Na3PO4 + 3 AgNO3 --> 3 NaNO3 + Ag3PO4 B. (NH4)2SO4 + Ba(C2H3O2 + BaSO4

14. ## Chemistry

What concentration of Ag is in equilibrium with 1.4 × 10^-6 M Co(CN)63– and Ag3Co(CN)6(s)? The solubility constant of Ag3Co(CN)6 is 3.9 x 10^-26

15. ## Science

Explain how gravitational, electrical, and magnetic forces act on a maglev train?

how should the ph of a 0.1 m solution of nac2h3o2 compared with that of a 0.1 m solution of kc2h3o2?

17. ## physics

Horizontal rays of red light (λ = 660 nm, in vacuum) and violet light (λ = 410 nm, in vacuum) are incident on the flint-glass prism shown in the drawing. The indices of refraction for the red and violet light are nred = 1.662 and nviolet = 1.698. The

18. ## Chemistry

2) What is the empirical formula of a compound containing C, H, O if combustion of 1.23g of the compound yields 1.8g CO2 and .74g of H2O 3) What are the empirical and molecular formulas of a hydrocarbon if combustion of 2.10g of the compound yields 6.59g

19. ## Algebra

a rowing team rowed an average of 17.2 miles per hour with he current and 10.4 miles per hour against the current. Determine the teams rowing speed in still water and speed of the current

20. ## Chemistry

The Ksp of iron(II) hydroxide, Fe(OH)2, is 4.87 × 10-17. Calculate the solubility of this compound in g/L.

21. ## Tcc

What are the magnitudes of (a) the angular velocity, (b) the radial acceleration, and (c) the tangential acceleration of a spaceship taking a circular turn of radius 3220 km at a speed of 29000 km/h?

22. ## Chemistry

The overall hydrogen burning reaction in stars can be represented as the conversion of four protons to one alpha particle. Use the data for the mass of H-1 and He-4 to calculate the energy released by this process.

23. ## Duration

Find the duration of a 6% coupon bond making annual coupon payments if it has three years until maturity and a yield to maturity of 6.5%. What is the duration if the yield to maturity is 10.5%?

24. ## econ

In January 2012, one US dollar was worth 50 Indian rupees. Suppose that over the next year the value of the Indian rupee decreases to 60 Indian rupees to one US dollar. Suppose also that the price level of all goods and services in India, as measured in

Given that z is a standard normal random variable, compute the following probabilities (to 4 decimals). a. P(z -1.5) b. P(z -2.5)

OMGosh Please help me (mom) so I can help my daughter with this word problem!!! Cam rode her bike 5 times as far as Dante did. Dante rode 187 meters farther than Michael did. Cam rode 15.25 kilometers. How many meters did Michael ride? Explain how you got

27. ## Chemistry

Will someone show me the formula or help me through working this question? Thanks! A 2.85g lead weight, initially at 10.3 deg C, is submerged in 7.55g of water at 52.3 deg C in an insulated container. what is the final temperature of both substances at

28. ## physics

A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless.

29. ## CHEMISTRY

At 450oC the value of equilibrium constant for the following system is 6.59 x 10-3. If [NH3] = 1.23 x 10-4 and [H2] = 2.75 x 10-3 at equilibrium, determine the concentration of N2 at that point. N2(g) + 3H2(g)  2NH3(g)

30. ## physics

Bird bones have air pockets in them to reduce their weight–this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 43.0 g

31. ## physics

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. Only 98% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. No light passes through the second sheet.

32. ## chemistry

You have been asked to do a dilution of a copper sulfate solution. The solution to be diluted is 2.88 M copper sulfate. What volume of the 2.88 M copper sulfate is required to make 250 mL of 1.03 M copper sulfate solution?

33. ## trig

An airplane has air speed of 540 mph and a heading of 50*. The wind is blowing from the north at 27 mph. Find the plane's ground speed and course direction.

Should other states wait to see if the high-speed rail system works well before starting their own plans for similar systems?

35. ## physics

A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless.

36. ## Math

The population of the Earth is approximately 6 billion people and is growing at an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 42 years

37. ## College physics

dockworker applies a constant horizontal force of 80.0N to a block of ice on a smooth horizontal floor. thhe block starts from rest and moves 11.0m in 5.00s. (a) what is the mass of the ice block? (b) if the work stops pushing at the end of the 5.00s, How

38. ## Math

The management of Ditton Industries has determined that the daily marginal revenue function associated with selling x units of their deluxe toaster ovens is given by the following where R '(x) is measured in dollars/unit. R'(x)= -0.1x + 40 (a) Find the

39. ## Math

A pack of jelly beans contains seven flavors, apricot, fig, grape, coconut, date, banana, and eggplant. How many combinations can you make with the seven flavors mixed or alone?

40. ## physics

If you dive to a depth of 10m below the surface of a lake, Part A what is the pressure due to the water alone? What is the absolute pressure at that depth?

41. ## English

Which one of the following sentences includes a possessive pronoun? A. She will never agree to that. B. She stood up for people's rights. C. He is a mighty opponent. D. Its paws were caked in mud

42. ## physics

The intensity of the light that reaches the photocell in the figure below is 104.6 W/m2, when θ = 26°. What would be the intensity reaching the photocell if the analyzer were removed from the setup, everything else remaining the same?

43. ## electronics

Two identical small charged spheres, each having a mass of 3.00*10^-2 kg hang in equilibrium . The length L of each string is 0.150m, and the angle between them is 5. Find the magnitude of the charge on each sphere

44. ## physics

Your town is installing a fountain in the main square. If the water is to rise 16 m (52.5 feet) above the fountain, how much pressure must the water have as it moves slowly toward the nozzle that sprays it up into the air? Assume atmospheric pressure equal

45. ## College Physics

A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m.

46. ## chemistry

Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2 (aq) and 0.0210 M Ag (aq). What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate? Ksp=1.20×10^–5 silver sulfate ksp=4.93x 10 ^-5 calcium sulfate

47. ## physics

If a compressive force of 3.2×104N is exerted on the end of a 16cm long bone of cross-sectional area 4.4cm2 , by how much does it shorten? Use Ebone=1.5×1010N/m2, tensile strength of bone = 1.3×108N/m2.

48. ## Physics

When a compact disk with a 12.0-cm diameter is rotating at 4.2 rad/s, what is (a) the linear speed and (b) the centripetal acceleration of a point on its outer rim?

49. ## Chemistry

How many atoms of each element are represented in the following: A.) 3NaCl B.) H2SO4 C.) 4H2SO4

50. ## spanish

Write the object pronouns that would correctly complete each sentence. Lupe muestra la revista a nosotros. Lupe________ ________muestra.

Assume a binomial probability distribution has p = .60 and n = 200. a. What is the probability of 100 to 110 successes (to 4 decimals)? b. What is the probability of 130 or more successes (to 4 decimals)?

52. ## Pyhsics

The weight of the atmosphere above 1 m2{\rm m}^{2} of Earth's surface is about 100,000 N{\rm N}. Density, of course, becomes less with altitude. But suppose the density of air were a constant 1.2 kg/m3{\rm kg}/{\rm m}^{3}. Calculate where the top of the

53. ## Math

Annual sales (in millions of units) of pocket computers are expected to grow in accordance with the following function where t is measured in years, with t = 0 corresponding to 1997. f(t) = 0.18t^2 + 0.16t + 2.64 (0

54. ## math connections

experience shows that a ski lodge will be full(181 guests) if there is a heavy snowfall in december, white only partially full guests(88 guests) with a light snow fall. what is the expected number of guests of the probability for a heavy snow fall is .40

55. ## Physics

A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. A rope is wound around the cylinder and its free end is attached to a block of mass 54.0 kg that rests on a platform. The cylinder has a mass of 265 kg and a

56. ## math

Suppose that 16 inches of wire costs 64 cents. At the same rate, how many inches of wire can be bought for 48 cents?

57. ## Circle geometry

Please help Explain how I figure this out. A circle has diameter 70cm. A chord in the circle is 50cm long. How far is the chord from the center of the circle? I have been stuck on this for days. I appreciate any help. Thank you!!

58. ## Chemistry, Science

Write the balanced chemical equation for each of these reactions. Include phases. When aqueous sodium hydroxide is added to a solution containing lead(II) nitrate, a solid precipitate forms. However, when additional aqueous hydroxide is added the

59. ## chemistry

Assuming that 1g of aspirin dissolves in450ml 0f water at 10 degrees Celsius. How much aspirin would be lost in the 5ml of water added to the reaction mixture if the mixture were at 10 degree Celsius during the filtration?

61. ## Finance

A bond currently sells for $1,120, which gives it a yield to maturity of 5%. Suppose that if the yield increases by 25 basis points, the price of the bond falls to$1,070. What is the duration of this bond?

62. ## maths

Resultant of 2 vectors P & Q is inclined at 45 to either of them. What is the magnitude of resultant vector?

63. ## Social worker

Identify three study fields/career paths in order of preference and provide two reasons for each choice

64. ## physics

A staging that weighs 210 N supports two painters, one 310 N and the other 440 N. The reading in the left scale is Fℓ = 320 N. What is the reading Fr in the right hand scale? Answer in units of N

65. ## Chemistry Equilibrium

At 500 ºC, the decomposition of water into hydrogen and oxygen, 2H2O(g) 2H2(g) + O2(g) has Kc = 6.0 × 10-28. What are the concentrations of H2 and O2 that are present at equilibrium in a 2.00 L reaction vessel at this temperature if the container

66. ## physics

Given that the small piston has a radius of 0.0330 meters^2 and the large piston has a radius of 4.00 meters^2. (a) What force will the large piston provide if the small piston is pushed down with a force of 17.0 N?. (b) If the small piston is slowly

67. ## Algebra II

Help me with this, please... A ball is dropped vertically from a height of 80 meters. After each bounce, the ball reaches a maximum height equal to 60 percent of maximum height of the previous bounce. a. Write the first three terms of the sequence. Explain

68. ## Chemistry

The half-life of Th-232 is 1.4E10. Find the number of disintegrations per hour emitted by 1 mol of Th-232.

69. ## Math

Find all solutions to the equation. Cos^2(x)+2cos(x)+1=0

70. ## Chemistry

Determine the mass of the products formed by the combustion of a 7.6g of a coumpound with emprical formula C7H12

71. ## Permutations

What is the number of permutations for the words: QUEUE COMMITTEE PROPOSITION BASEBALL You can arrange it in any order. You can also arrange it into any order of the letters. You could use the math from FACTORIAL. I need an answer ASAP!!!

72. ## math

A large bicycle retailer collects data on the number of bicycles in each store compared to floor space of each store. The data is given in the table below. Number of Bicycles 60 56 208 52 70 55 Floor Space (sq ft) 1400 1140 3250 1100 1500 1280 a) Determine

74. ## math

Bacteria is growing in a petri dish. Initially, there were 15,000 bacteria in the dish. It triples every 8 hours. Write the equation to represents this growth after t hours.

75. ## Physics

A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. A rope is wound around the cylinder and its free end is attached to a block of mass 54.0 kg that rests on a platform. The cylinder has a mass of 265 kg and a

76. ## CHEMISTRY HELP !!!! Check

using Kb, for NH3 (from Appendix E), calculate Ka for the NH4+ ion. Kb for NH3 is 1.81 x 10^-5 Ka for NH4+ is Kw / Kb = 10^-14 / 1.81 x 10^-5 = 5.52 x 10^-10

77. ## trig

A and B are positive acute angles. if sin A=4/5 and cos B=8/17 find the value of tan (A-B) is the answer =43/100

78. ## math

Alberto studied the distribution of two sets of data. He found that both sets had the same greatest value and the same center. Alberto says that this does not mean the data distributions are the same. Is he correct? Explain. I really need help.

79. ## language arts 12

The main feeling conveyed by the speaker in this poem, “The Second Coming” is one of

80. ## Social Studies

1. Which question would best help you write a report regarding the changes to the political system during Jackson's presidency? (1 point) How did Andrew Jackson react to the results of the election of 1824? When did Andrew Jackson decide to run for

81. ## Physics

A space probe is traveling in outer space with a momentum that has a magnitude of 7.84 x 107 kg·m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.29 x 106 N and a direction opposite to the

82. ## CHEMISTRY

The value of the equilibrium constant for the reaction below is 40.0 at a specified temperature. What would be the value of that constant for the reverse reaction under the same conditions?

83. ## math

which figure must have both parallel and perpendicular sides.

84. ## chemistry

Nitrogen and oxygen react to form nitric oxide (NO). All substances are in the gas phase. If 0.352 atm of nitrogen and 0.511 atm of oxygen react, what is the partial pressure of nitric oxide (in mmHg) when this reaction goes 73.9 complete. The temperature

85. ## math

fedrick ordered a new sign for her store. The sign has 4 sides . It also has 2 right angles. 1 acute angle , and 1 obtuse angle . What is the shape of the sign. 1. Hexagon 2. Trapezoid 3. rhombus 4. parallelogram

86. ## Life orientation

Three career paths in order of preference and provide two reasons each choice

87. ## Math

Find the missing measurement for each triangle. 1. A= 16 in squared, b= 8 in., h=? My answer 4 in. 2. A= 20 m squared, b=___, h = 4 m. My answer b=10. 3. A=____, b=6.4ft. h=7.6ft My answer A=24.32ft square. 4. A=14 cm squared, b=2cm, h=___ My answer 14cm.

88. ## physics

A 2.7-m nylon fishing line used to hold up a 7.1-kg fish has a diameter of 1.8mm . Part A How much is the line elongated?

89. ## Life Management

One of the disadvantages of using electronic money is it is possible to lose track of one's budget. A. false B. true I honestly thought that it was B - but really it should help you keep track....what do you think?

90. ## catering

According to current data, most caterers with an active business have _______ full-time employees.

91. ## world history

what did the north and south believe about the compromise of 1850?

92. ## Life Management

An institutions evaluation of whether a person is suitable to receive credit is called: A. Credit rating B. The three C's (character, collateral, and capacity) I think it is A...?

93. ## science

When a 30 mM aq solution of sodium acetate was prepared in the lab it had a pH of 8.8. Calculate the amount of acetic acid (in g) to be added to 0.5 L of this sodium acetate solution in order to bring its pH to the target value of 5.00.

94. ## Biology

ystic fibrosis is caused by mutations in the CFTR gene, which encodes for a chloride channel. You are studying cystic fibrosis patients to determine what mutation they possess in the CFTR gene. The difference between the mutant and wild type CFTR can be

95. ## Pre cal

Translate the graph of y=sinx to the right by pi units, and then reflect this curve about the x-axis what graph result?

96. ## College Physics

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the

97. ## math

The surface area of this rectangular prism is 256 square millimeters. What is the value of l? the given numbers are h=4 w=8

98. ## algebra

What are the solutions for x when y is equal to 0 in the following quadratic function? y=x^2+10x-24 A. x = –4 or x = –6 B. x = –6 or x = 4 C. x = –2 or x = 12 D. x = –12 or x = 2 E. no real solutions

99. ## College Physics

Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater

100. ## science

Resultant of 2 vectors P and Q is inclined at 45 either of them. What is the magnitude of resultant vector?

101. ## Geometry

What is the volume/surface area for 5m,12m and 15m

102. ## science

Resultant of 2 vectors P and Q is inclined at 30 either of them. What is the magnitude of resultant vector?

103. ## math

which figure must have both parallel and perpendicular sides. 1.parallelogram 2. rectangle 3. rhombus 4. right triangles

104. ## Chemistry

The half-life of 232Th is 1.4 * 10^10. Find the number of disintegrations per hour emitted by 1 mil of 232Th in 1 min.

105. ## Calculus

Would you be able to help me with a couple of questions? thanks in advanced! 1. I am given the graph f(x)=x^2-2x. I have to draw a line tangent to the point (0,0). Then, I have to estimate the slope at that point. how would I go about answering this

106. ## English

A: What would you like to have? B: A hamburger, please. A: For here or to go? B: To go. ----------------- What does 'to go' mean? 1. I'll take. 2. I'll take it out. We can use #2 instead of ' To go.' What about #1? Can't we use #1? What is the difference

107. ## Math

Find the real and imaginary parts of the following complex numbers: (i) 1.5e^jπ/4 (ii) je^1.2 + j^2 e

108. ## math

Shelly is making tomato soup. A 1-pint can of tomato juice costs $0.90. A 1-quart can of tomato juice costs$1.65. Which is a better buy for one quart of juice? How much money will she save?

109. ## CHEMISTRY

The value of the equilibrium constant for the reaction below is 40.0 at a specified temperature. What would be the value of that constant for the reverse reaction under the same conditions? H2(g) + I2(g)  HI(g)

110. ## French

Verbes: avoir et être Mets les phrases suivantes au passé composé. 1. Nous avons faim. 2. Il y a un visiteur dans la classe 3. As-tu de la chance?

111. ## physic

A 5.0-kg object is supported by an aluminum wire of length 2.1m and diameter 1.7mm . Part A How much will the wire stretch?

112. ## Geography

True or false ? - Australia's most important rivers the Murray and the darling flow across a vast plain that contains fertile farmland - New Zealand is made up of one major island with highlands,forests,lakes,and rugged mountains . -new Zealand's climate

113. ## math

john ordered a new sign for her store. The sign has 4 sides . It also has 2 right angles. 1 acute angle , and 1 obtuse angle . What is the shape of the sign.

114. ## L.A.

What is the best interpretation of the following stanza from the poem "One"?

115. ## University

Well so I applied to many Universities in Canada, and I applied to many colleges..I got into Bachelor of Child Development at Seneca college also Bachelor of Commerce. I don't think I will get into a University. Is it bad in the future if I have a degree

116. ## Math

simplify! r^2s^5t^4 over (like a fraction) r^2s^2t^5 A. S^3 over t^2 B. S^3 over t C. S^2 over t^3 D. S over t ** a letter with -- ^ means to that power** thank you!

117. ## physics

A hydraulic lift has a leak so that it is only 6.0 × 101% efficient in raising its load. If the large piston exerts a force of 1.00 × 102 N when the small piston is depressed with a force of 15 N and the radius of the small piston is 18 cm, what is the

118. ## science

Resultant of 2 vectors P & Q is inclined at 45 to either of them. What is the magnitude of resultant vector?

119. ## math

Jill is designing a mural. The square in the mural has an area of 784 inches squared. The parallelogram in the mural has the same base, height, and areas as the square. what are the dimensions of the parallelogram

120. ## physics

Here is a demonstration Pascal used to show the importance of a fluid's pressure on the fluid's depth(Figure 1) : An oak barrel with a lid of area 0.17m2 is filled with water. Along, thin tube of cross-sectional area 5.0×10−5m2 is inserted into a hole

121. ## math

Write an inequality using subtraction and the variable x so that solutions to the inequality include x = 3,5,7, and 9. Please help me.

122. ## Statistics

If a company’s total fixed costs increased by $20,000 and its contribution margin decreased by$12,000, net income would be?

123. ## Math

Abby has 18 blue socks and 4 white socks. How many socks does she need to pull out in order to have a matching pair of socks?

124. ## Chemistry help plzzzzz!!!!!

I've tried solving this problem 100x and i keep getting it wrong. I don't know where i am going wrong. Wouldnt it be: (100ml * 4.180 * 6.49) + (6.50*6.49) 2713+42.2=2755.2= 2755.2/0.05=55104 Then convert to kj so 55104/1000=55.104 which would be 55.1 for

125. ## Geometry

tha area of a regular octagon found by decomposing the octagon into a rectangle into trapezoids is ________ m2

126. ## math

James swims 3/4 miles 5 times a week. How far does he swim in one week.

127. ## Sentence Completion

Demonstrate your understanding of the Word Bank words by completing each sentence in the space provided. Word Bank: aerodynamics; hydraulic; pursue; improbable; derides; legacy; riveting; ruminative; adept; compelling 1. Aerodynamics affect flight

128. ## L.0

with regard to twillightchildren why is it important that this non governmenta organisation receive donors?

129. ## Chemistry

Minimum elevation in boiling point is given by a solution of 1. 0.1M Urea 2. 0.1 NaCL 3. 0.1 Mgcl2 4. 0.1M AL2(So4)3

130. ## Math

Can you find the base and height measurements for a triangle if you know that the area is 22 square units? Explain why or why not.

131. ## algebra

Y= -3/8x + 10

132. ## Social Studies

What were the negative impact or effects of the Incas and Aztecs? Thank You

133. ## math

His farn yields 5,000 ears of corn per season. Each year he plans to double the amount of corn his farm will yield. If this occurs, how ears of ears of corn will his farm yield during the fourth year?

134. ## chemistry

A 4.70 g sample of a certain gas occupies 530. mL at STP. What mass of the same gas is present in a 1.15 L container at 40.5°C and 785 mm Hg?

135. ## physics

Which one of the following situations are likely to involve turbulent flow? a 1 micrometer microbe swimming in water at 30 micrometers per second a 1 millimeter bug crawling on the windshield of a car that is travelling at 30 m/s a 10 micrometer blood cell

136. ## math help

Simplify. 8x^7y^4 over 2x³y² a. 16x³y^4 b. 16x^4y² c. 4x³y^4 d. 4x^4y² I appreciate it help!

Hey guys! I need some help on improving my vocal cords for my music class. I am 13 and I really need help with singing. My teacher says my voice sounds terrible and I would really like to sound pretty. Does anyone have any ideas on what I could do instead

138. ## Help Mrs.Sue plz

Which sentence uses italics, quotation marks, and punctuation correctly? (1 point) The article called “A Persistent Rebel” in American History magazine told about Elizabeth Blackwell. The article called A Persistent Rebel in American History magazine

139. ## math

If a person currently consumes 3,500 calories per day and wants to cut back their daily amount by 250 calories each week, how many weeks will it take to reduce their daily caloric intake in half?

140. ## Language Art (Please Check)

there _____ a ver long debate on the issue. Which of the following names the sentences subject and a verb that agrees with that subject? A.there;is B.there;was C.debate;was D.debate;were

141. ## Language Art (Please Check)

Im actually confused on this one i think its C. or D. but ill go with D. which of the following would be most likely to cause a commotion? A.A baby sleeping in a stroller B.A library closing for the evening C.A public appearance by a celebrity D.A

142. ## Calculus

I am stuck on both of these questions. Would you please tell me if my reasoning is correct? 1. An object is dropped off a building. When comparing the average velocity of the object over equal time intervals, explain the difference between early time

143. ## trig

Use standard identities to express sin(2θ+π/3) in terms of sinθ and cosθ

144. ## Chemistry

Find the amount of energy absorbed by 10.0 g of water when the temperature is increased from 10.0 degrees celcius to 20.0 degrees celcius? What is this amount in calories? KCAL?

145. ## math

find the ratio please!! 10m² over 2m^5 a. 5 over m³ b. 5m³ c. m³ over 5 d. 1 over 5m³

146. ## Pyhsics

What would be the final temperature of a mixture of 50 g{\rm g} of 17∘C^\circ C water and 50 g{\rm g} of 44∘C^\circ C water? I have no clue where I should even begin please help.

147. ## physics

A 50kg girl sits at the top of a slide 6m long tilted at an angle of 30 degrees. if it takes her 3.3s to slide to the bottom and the coefficient of kinetic friction is 0.45, how fast will she be going at the bottom?

148. ## Calculus

I was wondering if you would be able to check if my answers are correct: 1. An oil tank is being drained for cleaning. After t minutes there are v litres of oil left in the tank, where v(t)=40(20-t)^2, 00 (5/3+h)-(5/3)/h and my answer was 1/9. b) Determine

149. ## maths

graph of a function

150. ## maths - hcf

1) Find the least number when divide by 25, 45, 60 leaves reminder 20. 2) Find the least number which when divided by 18, 12, 24 leaves a reminder of 16, 10, 22 respectively. Can U help me to find the answer.

151. ## algbra

perform the given set operation. let u={1,2,3,4,5,6,7,8,9,10} {x[xis a multiple of 2}u {x is the multiple of 3}

152. ## jacksonville

2NBr3+63NaOH--->N2+3NaBr+3hobr

153. ## lo pls help

1.why is it important to make twillight children good citizens of the country? 2. discuss and mention donors in the article of twillight children

154. ## Programming Logic & Design

Modify the previous process to store the scores in an array. You will need to use either parallel arrays or a two-dimensional array in order to store the score, slope and rating for each entry. In the loop you created in the previous assignment to read the

155. ## Math

4 1/3 - 2 1/2 Thank you for your help

156. ## Lo its urgent please

explain the importance of buildng a person confidence levels.give an example from the article of twillightchildren

157. ## Language Art (Please Check)

i think its C. when does juan catch the bus for school? Which of the following correctly names the subject and the verb of the sentence? A.juan;catch B.when;catch C.juan,does catch D.when;does catch

158. ## math

find the zeros by factoring -x^2 - 4x + 5 = y

159. ## physics

a rod is having a positive charge and a point charge is placed at a distance 'd' from it making angle 45 degree with one end and 37 degree with the other.calculate field. plz answer its urgent.

160. ## Chemistry

What change in temperature is neeeded when 40.0g of water absorbs 2500 calories of heat?

161. ## math

simplify 8g^7h^-3 over (like a fraction) 2g^4h^8 a. g³ over 4h^5 b. 4g³ over h^11 c. 4g³h^5 d. 4h^11 over g³ thank you for your help!

162. ## MATH

find the ratio please!! 10m² over 2m^5 a. 5 over m³ b. 5m³ c. m³ over 5 d. 1 over 5m³

163. ## Math

find the ratio please!! 10m² over 2m^5 a. 5 over m³ b. 5m³ c. m³ over 5 d. 1 over 5m³

164. ## math

A local bus leaves the stations at 6:00 a.m. and returns to pick up new passengers every 40 minutes. Providing there are no delays and the bus maintains its schedule, what time could the bus NOT return to the station?

165. ## functions (easy explanation)

I have a very quick question about exponential functions. I know how to use them and apply them but I don't know how to explain why they are always positive. Does anyone know why? An example of an exponential function would be 5 to the power of x. Thank

166. ## Language Art (Please Check)

i think C. Which of these is true of both historical fiction and historical nonfiction? A.the setting is real B.the plot is imaginary C.The time period is true D.the characters are real

168. ## English

1. Each of us has something to do. 2. We each have something to do. (Are both grammatical? in #1 we us 'has,' and 'in #2 we use 'have.') 3. All the books were expensive. 4. All the people were surprised. 5. All are old things. 6. All is old things. 7. All

169. ## math/ratios

If there are 5 cats and 4 dogs how would I create a ratio bar? Help!

170. ## Math

Simplify! 3x^5 over 15x A. x^4 over 5 B. 1/5 C. x^6 over 5 D. x^5 over 5 thank you!

171. ## math

The map of the school has a scale of half inch 5 yards the distance from the library to the cafeteria is one and a half inches on the map how far is the library from the cafeteria

172. ## Soc

Is it important to distinguish between heterogeneity within a group and differences across several groups?

173. ## MathsLiteracy Lifescience physicalscience geograph

What careers can I find with those subjects above?

174. ## chemistry

What would be the final concentration of [K+] if we mix 0.234 L of a solution with a concentration of 1.2M K2CO3 with 312.5 mL of a solution with a concentration of 0.32 M K3PO4

175. ## chemistry

What is the difference between the speed of a moving object and its velocity?

176. ## chemistry

Calculate the volume of solution needed to obtain 0.320 mol of KCl from a solution with a concentration of 0.64 mol dm-3

177. ## Physics

convert 220 degree into radians show work.

178. ## finance

Free Cash Flow 2014- 1,522 2015- 1,834 2016-2,056 consider a cost of capital of 9.6% and that it is expected that the cfs of the company will grow at a rate of 6% long term.

179. ## Math

Evaluate the following definite integral. sqrt(11 x)(sqrt(x) + sqrt(11)) dx between(0,1)

180. ## math

How do you know that any value for y will be a solution to the inequality y + 3.9 > y?

181. ## SS

Are Syria and Bahrain oil rich, in general?

182. ## Math

4 2/9 + 2 1/3

183. ## economics

what are the cost and consaquences of providing the subsdies and welfare?

184. ## Math

For a 5 man baseball team how would I find the average? Would it be total hits divided by total at bats or add up 5 averages and divide by 5?

185. ## Math

I really need help on this PLEASE a 5 man baseball team how would I find average? Would it be total hits divided by at bats or add up the 5 averages and divide by 5? Thank You - Please help me!

186. ## Language Art (Please Check)

i think its B. if not B. then C. We stayed at sybil house for several hours? Which of these is the verb of the sentence? A.we B.house C.stayed D.several

187. ## poetry-rap

what can i write a rap about??? its for poetry for homework

188. ## SS

Is West Bank and Gaza oil rich? I think no.

189. ## Math

Evaluate the following definite integral. 5(1 + 1/u + 1/u^2)du between (5,7)

190. ## PHYSICS HELP

100turns of insulated wire are wraped around a wooden cylindrical core of cross-sectional area 12cm2. The two ends of the wire are connected to a resistor. The total circuit resistance is 13Ω. If an externally applied uniform magnetic field along the core

4 1/3 - 21/2

192. ## math

3/8 of a box contains 18 crackers how many crackers are in a box