# Questions Asked onMay 6, 2012

1. ## algebra

what is the answer to pre algebra with pizzazz page 106

2. ## physics help plz

One 3.5 kg paint bucket is hanging by a massless cord from another 3.5kg paint bucket, also hanging by a massless cord, as shown in the figure . Part a) If the buckets are at rest, what is the tension in lower and higher cord ? Part b)If the two buckets

A box weighing 65.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. Part a) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley

4. ## Statistics

Sulfur compounds cause "off-odors" in wine, so winemaker want to know the odor threshold, the lowest concentration of a compound that the human nose can detect. The odor threshold for dimethyl sulfide (DMS) in trained wine tasters is about 25 micrograms

5. ## Chemistry

If 1.0 mL of 6.0M HCl is added to 499 mL of water to give exactly a 500 mL solution, what is the molarity of the dilute solution?

6. ## Chemistry

If a total of 13.5 mol of NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of CO2 and Na3C6H5O7 will be produced? 3NaHCO3(aq) + C6H8O7(aq) > 3CO2(g) + 3H2O(s) + Na3C6H5O7(aq)

7. ## chemistry

Determine the amount of heat needed to raise 20.0 g of ice at 0 degrees C to steam at 100 degrees C. (ΔHfusion = 334 J/g; Specific heat of (H2O) = 4.18 J/gc; ΔHvap = 2.25 kJ/g)

8. ## math

an architect wants to draw a rectangle with a diagonal of 13 inches.the length of the rectangle is to be 2 inches more thn twice the width.what dimensions should she make the triangle. (a)set up an equation: (b)solve the equation: (c)write a sentence that

9. ## physics

A 2.0-kg ball moving at 10 m/s makes an off-center collision with a 3.0-kg ball that is initially at rest. After the collision, the 2.0-kg ball is deflected at an angle of 30° from its original direction of motion and the 3.0-kg ball is moving at 4.0 m/s.

10. ## English

In the Story "The Bracelet" By Colette what is the theme in the story? A. Age is just a number B. The joys of youth are fleeting C. Diamonds are a girl's best friend D. A Bird in the hand is worth two in the bush

Molly Ellen, bookkeeper for Keystone Company, forgot to send in the payroll taxes due on April 15. She sent the payment November 8. The IRS sent her a penalty charge of 8% simple interest on the unpaid taxes of \$4,100.

12. ## physics

A proton that has a mass m and is moving at 250 m/s in the + direction undergoes a head-on elastic collision with a stationary oxygen nucleus of mass 16m. Find the velocities of the proton and the carbon nucleus after the collision

13. ## Chemisttry

A 100.0-mL sample of 0.250 M aniline (C6H5NH2) is titrated with 0.500 M HCl. What is the pH at the equivalence point?

14. ## statistics

Urgen!! Statistics homework help? Your company is producing special battery packs for the most popular toy during the holiday season. The life span of the battery pack is known to be Normally distributed with a mean of 250 hours and a standard deviation of

15. ## Chemistry

You take 326 g of a solid (melting point = 57.6oC, enthalpy of fusion = 346 J/g) and let it melt in 757 g of water, and the water temperature decreases from its initial temperature to 57.6oC. Calculate the initial temperature of the water. (Note that the

16. ## statistics

The distribution of scores on a standardized aptitude test is approximately normal with a mean of 490 and a standard deviation of 95. What is the minimum score needed to be in the top 25% on this test? Carry your intermediate computations to at least four

17. ## Chemistry

What is the molarity of a solution containing 9.0 moles of solute in 2500 mL of solution? I got this answer: M = (9.0mols/2.5L)= 3.6M Is this correct? Thanks

18. ## chemistry

A 0.140-mole quantity of CoCl2 is added to a liter of 1.20 M NH3 solution. What is the concentration of Co2+ ions at equilibrium? Assume the formation constant of Co(NH3)6^2+ is 5.0e31. Please help, I don't know how to do this problem.

19. ## physics

A 2.0-kg ball moving at 10 m/s makes an off-center collision with a 3.0-kg ball that is initially at rest. After the collision, the 2.0-kg ball is deflected at an angle of 30° from its original direction of motion and the 3.0-kg ball is moving at 4.0 m/s.

20. ## chemistry

Give delta H for the combustion of propane: C3H8+5O2+3CO2+4H20 +530KCAL delta h= -530 KCAL But how do i figure out how to get this answer? Thanks!

21. ## Physical Science

On a hot summer day (30 degrees Celcius), a pesky little mosquito produced its warning sound near your ear. The sound is produced by the beating of its wings at a rate of about 600 wing beats per second. What is the frequency in Hertz of the sound wave?

22. ## Chemistry

When a mixture of sulfur and metallic silver is heated, silver sulfide is produced. What mass of silver sulfide is produced from a mixture of 3.0 g Ag and 3.0 g S8? 16 Ag(s) + S8(s) > 8Ag2S(s)

23. ## math

suppose you have 54 feet of fencing to enclose a rectangle dog pen . the function a= 27x- x^2 , where x = width , gives you the area of the dog pen in square feet . what width gives you the maximum area ? what is the maximum area ? round to the nearest

24. ## physics

A proton that has a mass m and is moving at 250 m/s in the + direction undergoes a head-on elastic collision with a stationary oxygen nucleus of mass 16m. Find the velocities of the proton and the oxygen nucleus after the collision i know i have to

25. ## algebra

Fill in the blank to make the two fractions equivalent. ?/24 = 3/4 is the answer 6

26. ## Chemistry

What is the limiting reagent when 150.0 g of nitrogen react with 32.1 g of hydrogen? N2(g) + 3H(g) > 2NH3(g) Thank you

27. ## discrete math

Consider the graph given above. Add an edge so the resulting graph has an Euler circuit (without repeating an existing edge). Now give an Euler circuit through the graph with this new edge by listing the vertices in the order visited.

28. ## physics

An electron is accelerated by a constant electric field of magnitude 325 N/C. (a) Find the acceleration of the electron. (m/s^2) (b) Use the equations of motion with constant acceleration to find the electron's speed after 1.05 10-8 s, assuming it starts

29. ## geometry

An architect plans to draw a rectangular patio with segment LM representing one side of the rectangle. He wants to construct a line passing through Q and parallel to side LM. He uses a straightedge and compass to complete some steps of the construction as

30. ## statistics

To determine how many hours per week freshmen college students watch television, a random sample of 225 students was selected. It was determined that the students in the sample spent an average of 35 hours watching TV per week. The population standard

31. ## physics

What is the angular momentum of a 0.200- ball rotating on the end of a thin string in a circle of radius 1.45 at an angular speed of 13.0 ?

32. ## physics

A scuba diver searches for treasure at a depth of 20.0m below the surface of the sea. at what pressure must the scuba device deliver air to the diver? (density of sea water= 1030kg/m^3;atmospheric pressure= 1.013x10^5 pa)

33. ## Physics

A king's crown is said to be solid gold but may be made of lead and covered with gold. when it is weighed in air, the scale reads 0.475 kg. when it is submerged in water the scale reads 0.437 kg.is it solid gold? if not, what percent is mass is gold?

34. ## Chemistry

A balloon filled with helium has a volume of 30.0 L at a pressure of 100 kPa and a temperature of 15.0 Celsius. What will the volume of the balloon be if the temperature increased to 80.0 Celsius and the pressure remains constant?

35. ## Statistics

A randomized comparative experiment compared the effects of two types of deep-brain stimulation (pallidal stimulation and subthalamic stimulation) on change in motor function, as blindly assessed on the Unified Parkinson's Disease Rating Scale, part III

36. ## Chemistry

A chemical system within a sealed 1 L reaction vessel is described by the following reversible reaction equation: 2H2S(g) 2H(g) + S2(g) (a) the reaction quotient intially (b) the order of concentration of all three components at equilibrium without using

37. ## English

Hello. I'll be very grateful for your help. 1)Which article is better in the sentence (maybe both are OK?): "Experts believe the premier has already prepared a/the(?)program aimed at boosting the country's economy"? 2)Do you think "accuse" is possible in

38. ## Fraction

Fill in the blank to make the two fractions equivalent. ?/24 =3/4 my answer =18

39. ## chemistry

CHCl3 has normal boiling point at 61C and enthalpy of vaporization of 29.24kJ/mol. what are its value of G and S vapor

40. ## chemistry

Determine the amount of heat needed to raise 20.0 g of ice at 0 degrees C to steam at 100 degrees C. (ΔHfusion = 334 J/g; Specific heat of (H2O) = 4.18 J/gc; ΔHvap = 2.25 kJ/g)

41. ## math 12

The bacterium Escherichia coli, or E-coli, has a doubling period of 0.32 h. If a culture starts with 100 bacteria: (a) Determine the equation for the number of bacteria, y, in x hours. b) How many hours will pass before there are 450 bacteria in the

42. ## Fine Arts

The question asks, What are some of the similarities and differences between scroll paintings in China and Japan. I have the similarities down, but i cant find any differences. Help?

43. ## math

A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 490 college students showed that 33% of them had, or intended to, cheat on examinations. Find the margin of error for the 95% confidence interval.

44. ## Physics. Need urgent help.

A scuba diver searches for treasure at a depth of 20.0m below the surface of the sea. at what pressure must the scuba device deliver air to the diver? (density of sea water= 1030kg/m^3;atmospheric pressure= 1.013x10^5 pa) another one A king's crown is said

45. ## englidsh

"The Rime of the Ancient Mariner" is famous for its use of vivid figurative language and memorable sound devices. What do you think are several especially effective examples of simile, metaphor, personification, alliteration, assonance, and internal rhyme?

46. ## Calc 2

Find the area of the region inside r=19sin(theta) but outside r=3

47. ## math

A radio tower stands on the top of a hill that is 85 feet high. From the bottom of the hill, the elevation angle to the base of the tower is 42 degrees and the elevation angle to the top of the tower is 60 degrees. How tall is the tower? I would like to

48. ## math

if \$9,000 is to be invested, part at 13% and the rest at 8% simple interest , how much should be invested at each rate so that the total annual return will be the same as \$9,000 invested at 9% set up as a system of linear equation

49. ## physics

Question # 1 : What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.82? Question # 2 : A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and

50. ## geometry

A plane intersects a sphere that has a radius of 13 cm. The distance from the center of the sphere to the closest point on the plane is 5 cm. What is the radius of the circle that is the intersection of the sphere and the plane? A. 8 cm B. 10 cm C. 12 cm

51. ## Physics 121

Two block are connected by a rope that runs over a pulley. The block on the tables has mass 4kg, the hanging block has mass 2kg, and the pulley has mass 0.5kg and radius 0.25m. Assume that the table is friction-less. If the block are released from the

52. ## math

A sample of 64 statistics students at a small college had a mean mathematics ACT score of 28 with a standard deviation of 4. Estimate the mean mathematics ACT score for all statistics students at this college. Give the 95% confidence interval.

53. ## Finance

Jones Distributing Corp. can sell common stock for \$27 per share and its investors require a 17% return. However, the administrative or flotation costs associated with selling the stock amount to \$2.70 per share. What is the cost of capital for Jones

54. ## Calculus

Approximate the sum of the series correct to four decimal places. n=1 to infinity (-1)^n/4^n*n!

55. ## chemistry

What is the molarity of a solution prepared by dissolving 2.41 g of potassium iodide, KI in 100 mL of water?

56. ## English

the theme of Espada's poem involves A. The sensitivity of children B. The importance of place C. the distortions of memory D. The suffocating quality of city life

57. ## ALGEBRA

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)

58. ## math

Please, help me solve this. log[2]x * log[2](x/4) = 8

59. ## Life orientation

What two institutions that are involved in supporting or giving redress to teenage pregnancy?

60. ## Math

The National AIDS Behavioral Surveys interviewed a sample of adults in the cities where AIDS is most common. This sample included 789 heterosexuals who reported having more than one sexual partner in the past year. We can consider this an SRS of size 789

61. ## ANALYTICAL CHEMISTRY

3. How many moles of HCl are required to make 15.00 mL of an aqueous 2.500 molar HCl solution? How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above? How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar

62. ## statistics

Hannah selected a simple random sample of all adults in her town and based on this sample, consrtucted a confidence interval for the mean salary of all adults in the town. however, the distribution of salaries in the town is not exactly normal. will the

63. ## geometry

a walkway 2 meters wide surrounds a rectangular play area 50 meters long and 30 meters wide. find the area of the walkway.

64. ## physics

A child whose weight is 281 N slides down a 6.20 m playground slide that makes an angle of 45.0¡ã with the horizontal. The coefficient of kinetic friction between slide and child is 0.160. (a) How much energy is transferred to thermal energy? (b) If she

65. ## English

A theme is best described as? A. A moral lesson presented in a work of literature B. The central idea or insight about life revealed in a literary work C. The subject of a work of literature D. A series of related events in a literary work I picked B but

66. ## Physics

can you use principle of density and buoyancy to explain how a cartesian diver works?

67. ## Chem 2

A 375-gallon tank is filled with water containing 167grams of bromine in the form of Br- ions. How many liters of Cl2 gas at 1.00 atm and 20C will be required to oxidize all the bromide to molecular bromine?

68. ## Algebra 1

An exam consists of two parts, Section X and Section Y. There can be a maximum of 80 questions. There must be at least 20 more questions in Section Y than in Section X. Write a system of inequalities to model the number of questions in each of the two

69. ## physics - waves

A five-slit system with 7.0 um slit spacing is illuminated with 630 nm light. Find the angular positions of the third and sixth minima.

70. ## Chemistry

A gas has a pressure of 710 kPa at 227 Celsius. What will its pressure be at 27 Celsius, if the volume does not change?

71. ## Physics 121

The disk has mass 10kg and radius 0.25m. The rod has mass 5kg, length 0.5m and radius 0.05m. The rod is split down the middle and is hinged so that its two halves can lay flat against the disk. Suppose that the disk and rod are initially rotating at

72. ## ALGEBRA

Convert the following credit card rate to the APR. Nebraska, 0.02192% daily rate. (Round your answer to the nearest whole number.)

73. ## statistics

A cellular phone manufacturer randomly selects 5 phones from every batch of 50 produced. If at least one of the phones is found to be defective than each phone in the batch is tested individually. Find the probability that the entire batch will need

74. ## literature

Tale of two cities Examine the theme of resurrection in the novel. Which characters are brought back to life and how? Is there any situation from which resurrection is impossible?

75. ## algebra

Bayside insurance offers two health plans. Under plan A, Giselle would have to pay the first \$140 of her medical bills, plus 40% of the rest. Under plan B, Giselle would pay the first \$160, but only 30% of the rest. For what amount of medical bills will

76. ## CHEMISTRY

For the following reaction at equilibrium, indicate if the equilibrium mixture contains mostly products, mostly reactants, or both products and reactants. 2H20(g)->

77. ## Chemistry

The volume of a gas is 250 mL at 340.0 kPa pressure. What will the volume be when the pressure is reduced to 50.0 kPa, assuming the temperature remains constant?

78. ## ALGEBRA

Let U = {17, 18, 19, 20, 21, 22, 23}, B = {17, 20, 21, 23}, and C = {19, 20, 22, 23}. List all the members of the sets. (Enter solutions from smallest to largest. If there are any unused answer boxes, enter NONE in the last boxes.) B = C =

79. ## Physics

If I know the length of all 3 sides in a right angle triangle, how do I get the degrees of the other angles? Which formula do I use again?

80. ## english speech

i'm typing down a speech that i need to prepare for english, how much should i write for a 5 min speech

81. ## math

Subtract 8/9 - 7/12 write your answer as a fraction in simplest form my answers 33/108 and 11/36 Questions 2: Multiply 2/9 * 18 My answers =36/9 =4/1 =4

82. ## calculus

The radius of the base of a right circular cylinder is r com and the height is 2r cm. Find the rate at which the surface area of the cylinder is increasing when the radius is 5 cm and the volume is increasing at 5pi cm/sec. Thank you!

83. ## Physics

a 70g bag of potato chips contains 1.6MJ of energy. Working at your maximum power, how long would it take to burn this energy?

84. ## Physics

A plastic sphere has a density that is greater than oil but less than water when itis placed in cylinder containing water, it is exactly half submerged, explain why when oil poured on top of water. The sphere is only 1/4 submerged in water.

85. ## Algebra

120 meters of fencing is used to fence 3 sides of a dog park against an existing wall. if the width of the park is w, find the length of the field in terms of w

86. ## statistics

The life span of the battery pack is known to be Normally distributed with a mean of 250 hours and a standard deviation of 20 hours. How to find the percentage of the battery packs lasting more than 250 hrs.

87. ## cheistry

What is the fromulat for copper (II) sulfate?

88. ## math 101

al flynn wants to buy a van that cost 16,000 with an interst charge of 2,000. Al figures he can afford a monhtly oayment of 700 per month, If there aew 24 equal payments required could al afford the van.

In a short responce, explain how life in the Roman Empire was affected by the empirial rule. Answer is backed up with evidence or proof. So please send me a link to the website that you got it from. Thank you for your coroporation.

90. ## Calculus

Three forces of 5 N, 8 N, and 10 N act from the corner of a cube along its edges. Using Cartesian vectors, find the magnitude of the resultant force.

91. ## Religion

What does this passage tell us about service? Come you that are blessed by my Father, inherit the kingdom prepared for you from the foundation of the world, for I was hungry and you gave me food, I was thirsty and you gave me something to drink, I was a

92. ## Chemistry

A 10 g mass of krypton occupies 15.0L at a pressure of 210 kPa. Find the volume of the krypton when the pressure is increased to 790kPa. Thanks

93. ## statistics

a raido show host asked people to call in and wheater they support new legislation to promote cleaner sources of energy. based on this sample, she constructed a confidence interval to estimate the proportion of all listners to her show who support the

94. ## physics

Question # 1 : What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is 0.82? Question # 2 : A 1.5-kg block rests on top of a 7.5kg block. The cord and pulley have negligible mass, and

95. ## Finite Math

Determine the 5th term of (2x+3y)^12

96. ## Evaluate

Evaluate -9-6/(-3) answer = -7 Question 2; Evaluate. (-7)^2 = 49 (-3)^3 = -27 Question 3: Evaluate. -9^2 Answer = -81 - (-3) ^3 Answer = 27

97. ## physics

Which of the following is a unit of temperature? celsius degree joule (my choice) kilogram calorie My first choice is joules and then maybe celsius but not real sure. Can someone please help? My other question is using newtons second law of motion if the

98. ## English

What is a work's theme? A. Is absolute B. can be interpreted by differently by different readers C. is always implied D. is usually state in the title I would pick B or D but im not sure what a work theme even is

99. ## Chemistry

A saturated solution of sodium nitrate at 70oC is cooled to 40oC. How many grams of precipitate are formed?

100. ## statistics

A cellular phone manufacturer randomly selects 5 phones from every batch of 50 produced. If at least one of the phones is found to be defective than each phone in the batch is tested individually. Find the probability that the entire batch will need

101. ## Chemistry

Help required- Urea, CO(NH2)2, is the excreted form of excess nitrogen in most vertebrates. In urinary infections, urease, released by microbial pathogens, degrades urea into CO2 and ammonia in the bladder. a) write a balanced equation of the reaction, b)

102. ## Algebra

55/18=17/16+1/2x

103. ## Chemistry

The free energy of a single electron falling through a potential difference of one volt is 1 electronvolt (eV). Therefore, on a per electron basis, x volts → x eV. Calculate the maximum wavelength of light (in nanometers) that provides enough energy to

104. ## Math

Find the least common multiple (LCM) of 10 and 6 . Answer =30

105. ## English

Please help me i don't know how to do this. How do i create atmosphere in writing. Create a first-person narrator (the main character tells the story using "I") and imagine a vivid scene for him or her. Imagine all of the senses involved in your

106. ## ap government and politics

hi. my teacher assigned us 20 questions and i got most of them, but i couldn't find the answers to these 4 questions. i did try google but it didn't help much. could someone please help me? List and explain how Congress carries out its’ three primary

107. ## physics

Which of the following is a unit of temperature? celsius degree joule (my choice) kilogram calorie My first choice is joules and then maybe celsius but not real sure. Can someone please help? My other question is using newtons second law of motion if the

108. ## Physics

Place a small amount of water in an alminium can, heat it over a burner, while water inside the can quickly, invert the can over a cold water both. Explain what will happen.

109. ## Calculus

10. Consider the lines [x,y,z] = [4,7,-1] + t[4,8,-4] and [x,y,z] = [1,5,4] + s[-1,2,3]. a) Show that the lines intersect at the right angle. b) find the point of intersection. please and thanks!

110. ## Fine Arts

I also have to compare the similarities and differences between monasticism and feudalism, and i don't know how that's possible because in my book these are the definitions of the two: Feudalism was a system in which weak noblemen gave up their lands and

111. ## math

a box has a volume of 546cm3 and a surface area of 422cm2 what is the length, width, and height?

112. ## Science

Two similar ballon are filled with gas. One with hydrogen and the other with oxygen. Which one will go down first and why?

113. ## Calculus

Find the vector equation of the line that passes through the point (2,-1,7) and is parallel to the line of intersection of the planes x + 2y - 3z = -6 and 3x - y + 2z = 4

114. ## Algebra

12(2nd power)/24(2nd power)/6(2ndpower)= Simplify I got 144/576/36 is this right?

115. ## psychology

What motivated Erik Erikson to achieve in life? Would his own personal experiences in life be considered a motivation? Example: Changing his last name to make his own identity, his 8 phychosocial stages...

If M

117. ## ANALYTICAL CHEMISTRY

3. How many moles of HCl are required to make 15.00 mL of an aqueous 2.500 molar HCl solution? How many moles of Cl- are in 1.000 mL of the aqueous 2.500 molar HCl solution mentioned above? How many moles of H+ are in 1.000 mL of the aqueous 2.500 molar

118. ## math

A government survey conducted to estimate the mean price of houses in a metropolitan area is designed to have a margin of error of \$10,000. Pilot studies suggest that the population standard deviation is \$70,000. Estimate the minimum sample size needed to

119. ## statistics

The heights (in feet) of a sample of five randomly chosen students from School x are 6.3, 6.1, 5.7, 5.8, and 6.2. Determine a 90% confidence interval for the mean height of all students at School x

120. ## Algebra

The bus stations in Trawlwy and Fenton are 220 miles apart. A bus left Trawley for Fenton at 9:00am. Traveling at 40 miles per hour. One hour later, an express bus left Fenton for Trawley traveling along the same road at 50 miles per hour. At what time did

121. ## Statistics

You have an SRS of size n = 16 from a Normal distribution with standard deviation = 1. You wish to test H_0 :Î¼ = 0 H_a :Î¼ > 0 You decide to reject H_0 if x bar > 0 and to accept H_0 otherwise. a. Find the probability of a Type I error. That is, find

122. ## EnGliSh

Is Tintern Abbey - Nature about nature, about human nature, or both? Explain, citing lines from the poem to support your ideas

123. ## math

The length of a rectangle is 26cm. What widths will make the perimeter greater than 70cm?

124. ## INTRO TO CRIMINAL CASE

Choose one of the stages of a criminal trial and in your own words describe the stage, noting its sequence in relation to other stages, the purpose of the stage, and any challenges. Find a criminal case and describe how the stage you chose was reflected in

125. ## algebra

make t the subject of the formula p divided by 2 square root t+r divided by g.

126. ## History

You have been called to a town meeting to present a case for supporting the revolt against King Goerge III. Present at least three arguments you might use to state your case. Why di you choose these arguments?

127. ## MATH

12, 14, 16, 18, 20, . . . Which expression represents the number in the pattern, where p is the position of the number in the pattern?

128. ## Art

I urgently need you to check a few things, Writeacher. Thank you very much. 1) Eveline is thinking about (is "of" a mistake?) her past, present and future. 2) She feels in danger of her father's violence. 3) The sound of the music triggers (I need a

129. ## chemistry

What is the pressure in a 1.5 L vessel containing 0.25 moles of )2 if the temperature is 37 degrees C? R the universal gas constatn is 0.082 L atm/mole K

130. ## algebra

Evaluate the following. 4*4-14/2+6 =15 Evaluate the following expression. 2*[1+(19+13)/4] =18 Evaluate. 50+25/5^2 = 51

131. ## Math

what is 1/5 of 30 ? is the answer = 6

132. ## world geography

is this an example of ethnocentrism "Why did you go to England for your education? Afghanistan doesn't need your foreign ideas."

133. ## STATISTICS

A manufacturer has received complaints that aging production equipment is forcing workers to work overtime in order to meet production quotas. Historically, the average hours worked per week at the company is normally distributed, with a mean of 40 hours

134. ## Physics

A helium balloon is tied to a brick and dropped into the lake. As the balloo sinks the buoyant force acting on decrease.

135. ## pre calculus

if the cost to to produce 100 cups of coffee is 11.02, while the cost to produce 400 cups is 401.12, what is the linear cost function?

136. ## Physics

Find the period for the following situations: a) a soccer team scores 3 goals in 90 minutes b) a pendulum swings 30 times in 20 seconds c) a jackhammer strikes the ground 200 times in one minute

137. ## accounting

what is the MIRR of cash flows of -900, 820,400,510,-180,and 200 at the rate of 16%?

138. ## chemistry

Write the equation for the decomposition of HI, knowing that the reaction requires 9.4 kj/mol of hydrogen forming. If 100.0 kj of energy are added, how many grams of iodine will form.

139. ## chemistry

Recommend the best alkaline metal-based desiccant for a storing an extremely hygroscopic protein

140. ## Physics

Find the frequency in Hertz (Hz) for the following situations: a) a basketball team scores 40 points in 300s b) a tuning fork vibrates 2000 times in 2s c) a boat bobs up and down 20 times in 5 minutes

141. ## health

Your health care organization has called upon you to lead a work team to identify service-quality problems within the environment. Individual Portion Answer the following questions about work teams: •What are the benefits of a strong work team? •What

143. ## math12

solve 5^(p+4)= 2^(4-5p)to 2 decimal places

144. ## math 120

what is answer for A = 90[1.00375)-1/0.00375

145. ## geometry

word problem You and 3 friends order a 24 in pizza (the diameter is 24 inches) what is the area of the pizza? Round to the nearest tenth. If you and 3 friends spit the pizza evenly, how much do you get to eat? What is total area? and what is your area? for

146. ## math

63x=3x^2+30x^3

147. ## algebra

a rectangular table top measures 6/7 of a meter long by 1/5 of a meter wide. The area is ? meters?

148. ## Calculus I

At time t in seconds, a particle's distance s(t), in centimeters, from a point is given by s(t) = 4 + 3 sin t. What is the average velocity of the particle from t = ð/3 to t = 7ð/3?

149. ## examinations

how long does it take to study for the algebra regents? do you think i can study for it in a month? I have taken the first 9 chapters of the barrons book and also studied for the shsat and passed but, will one month be enough for me to study and get at

150. ## Calculus I

At time t in seconds, a particle's distance s(t), in centimeters, from a point is given by s(t) = 4 + 3 sin t. What is the average velocity of the particle from t = pi/3 to t = 7pi/3?

151. ## math

Soybean meal is 18% protein, cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360lb. mixture that is 13% protein?

152. ## Calc

I have the differential equation dP/dt = 0.5(800-P) and I need to get the population equation P(t). Can someone walk me through the steps? Thanks!

153. ## math 122

the probability of having teams that will attract a large crowd is 0.7 and the probability of having good weather is 0.85. find the expected concession sales attractive teams, good weather \$480,000 attractive teams bad weather \$400,000 Unattractive teams

154. ## English

Hello. I'll be grateful for some help. 1)Is it possible to say: "peace in all the world" or is it "in the whole world"? 2)Do you think it's possible to say: "a candidate for president" or "candidate for the presidential post" or "candidate for the

155. ## algebra

solve graphically,giving real roots to the nearest tenth. x2-4x+3=0

156. ## Writing

Can you proofread my research paper, I mostly need help on vary sentence structure? Being Poor Doesn’t Mean a Thing “You are my sunshine, my only sunshine. You make me happy when the skies are grey.” These are the lines from Louisiana’s famous

157. ## calculus

Find the exact values of x if 0

158. ## world history

with regards to the mining and agriculture industry,in the nineteenth century,whichof the following statement is false?

159. ## Statistics

Describe how the confidence intervals will change depending on whether the population standard deviation is known or unknown

160. ## Art

I urgently need your help for two main reasons, Writeacher. 1) First, how would you express the following concept when presenting the programme for an exam: total (complete?)reading of the abdridged edition of Orwell's 1984. 2) Second, I need to find the

161. ## Evaluate Expression

6.Evaluate the following. 4*4-14/2+6 my answer =15 7.Evaluate the following expression. 2*[1+(19+13)/4] my answer =18 8.Evaluate. 50+25/5^2 My answer = 51

162. ## OSU

For the equation f(9.5)=P(2.5)^9.5 solve for P.

163. ## Calculus

I need to integrate ((e^-x)^2 - (-ex)^2)dx Can someone help?

164. ## english

What is another word for things? I tried looking on the thesaurus but nothing seem to match. My sentence: " I saw many horrifying things happening.."

165. ## Statistics

At the Statistics Canada Web site, you can find the percent of adults in each province or territory who have at least a university certificate, diploma, or degree at bachelor's level or above. It makes no sense to find x bar for these data and use it to

166. ## English

Hello. I'm very grateful for your previous answer. I have a question. Which word is correct in the context (maybe, both?): "Rome, which/who(?)had long suppored the Hitler regime, launched..." Thank you very much.

167. ## Math

Sarah has an 86% average on her 1st 5 tests. If she gets a 92 on her next test, what will her average be then?

168. ## English

Distract Helping my son can't decide between choices Forget about Talk about Why

169. ## Calculus AB

I'm trying to find the second derivative of h(x)= x^2 + cos(kx) My answer for h'(x) is 2x - ksin(kx) but I'm not sure if that's right. Then the answer I got for h''(x) was h''(x) = 2 - k^2cos(kx) but I'm pretty sure that's wrong based on the graph I was

170. ## LA

"what the story is mostly about" is a plot right?

172. ## language arts

Is this sentence a run on? An important decision made by Parvana was when Parvana agreed to go outside to buy food while she was dressed as a boy.

173. ## ALGEBRA

If the principal P = \$500, the interest I = \$525, and time t = 7 years, find the following. (a) What is the rate? % (b) What is the future value?

174. ## ALGEBRA

Find the amount of interest and the monthly payment for the loan. Purchase a car for \$42,800 at 2.4% add-on rate for 5 years. (Round your answers to the nearest cent.)

175. ## ALGEBRA

Make a 5% offer on a Volkswagen New Beetle that has a sticker price of \$22,120 and a dealer cost of \$20,862. (Round your answer to the nearest dollar.)

176. ## HIV questions

In the latter srage of the dieases known as AIDS the infected person often comes down with an opportunistic disease these infections are diseases which a healthy persons immune system would usually protect against? true (my choice) false Results of testing

177. ## science

What plants live in the Serengeti Ecosystem?

178. ## algebra

solve (x-3)(x=5)(x-7)=0

179. ## psychology Help

How did Erik Erikson progress through the hierarchy of needs difined in Maslows theory. So for physiological needs-These include the most basic needs that are vital to survival, such as the need for water, air, food, and sleep. How/what would be an example

180. ## statistics

a sample of 100 persons had a mean of 80 for a measure and the population standard deviation of 5. what ia the 99% confidence interval for the mean?

181. ## Art

I simply need to state that the students read the abridged edition of Orwell's 1984. Complete (from the beginning to the end, not only an abstract) reading of Orwell's 1984 ?? Thank you

182. ## math

susanna stated that the length of her desk is 135.2cm. what range would you expect the actual length of the desk to fall within.

In a short responce, explain how life in the Roman Empire was affected by imperial rule.

184. ## English

Is this sentence below correct grammatically ? Thanks! Throughout the story a couple of crucial events take place, but we shouldn’t merely focus on these occurrences themselves, but rather on Edie’s assessment of them.

185. ## Anatomy

Beginning with the systemic veins, track the blood flow through the heart. Can someone please help me with this? I am having trouble with this. Use these words to fill in the blanks on the chart: Systemic arteries, pulmonary veins, left ventricle, right

186. ## history

The introduction of all but the following crops from America led to an increase in food supply and population growth in China?

187. ## Psychology

Is Maslow's hierarchy universal? Do you see it applicable in other cultures? After reading/researching Maslow's theory of motivation we all share a compelling need to "move up", to improve ourselves, and than we become self-actualized. So to me this would

188. ## English Help

What is the meaning of the quote " Life is a race"?

189. ## English

does this sentence make sense? Because rivers are becoming extremely polluted, many plants and animals are dying.

190. ## math

A flower shop owner wants to pay off the loan on a used delivery van that was purchased 11 months ago. The 2-year installment plan used to purchase the van included a \$280 finance charge and called for payments of \$230 monthly. What amount is needed to pay

191. ## math/algebra

you have a car priced at 27,700 at 608.15 monthly payments for 5 years.how much interest is paid?

192. ## math

What is 3/8 divided by 9/10?

193. ## UMC

WHAT ADVANTAGES MIGHT A SOCIALIST SYSTEM HAVE IN RESPONDING TO THE NEEDS OF PEOPLE STRUCK BY AN EMERGENCY SITUATION LIKE THE EARTHQUAKE THAT OCCURRED IN hATI IN jANUARY

194. ## social studies

How did the change in the cash crop unite the people of SC?

195. ## excell graphing

what formula should i use to calculate the total cost of cell ranges like E5:E16

196. ## Topics in Physical Science

Find the net electrostatic in N or Q2 due to Q1 + Q2

197. ## maths, trigonometry

if tanx = 3 find x (3sf) - 8

198. ## Math

What had two right angels Parrallegram. Square trapezoid quadrilateral rectangle and why We thought trapezoid

199. ## Applied Calculus

demand function: p-18=(140-x)/20 Calculate the consumer surplus if the shirts are sold for \$16 each.

200. ## math

there are 20pages in jamel book he read 1/5 of the book how many pages did he read?

201. ## BUSSINESS STATISTICS

Consider the average available for all hotel rooms from the previous assignment. Identify the point estimate of the average number of available hotel rooms in this lesson from each sample. Construct and Interpret a 95% confidence level for the true mean