# Questions Asked onNovember 4, 2011

1. ## Chemistry

If a sample of pure hydrogen gas is ignited very carefully, the hydrogen burns gently, combining with the oxygen gas of the air to form water vapor. Write the unbalanced chemical equation for this reaction.

2. ## physics emergency

m1 = 2.7 kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the figure above. The other side is connected to the block m2 = 3.6 kg that hangs vertically. The system starts from rest with

3. ## chemistry

Draw the lewis structure for: SiO3 -2 CNO- TeO4 -2 F2PPCl2 thanks!

4. ## Calculus

A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is \$1 per gallon and the driver is paid \$8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct

5. ## Physics (College)

A car starts from rest at a stop sign. It accelerates at 2.0 m/s^2for 6.0 seconds, coasts for 2.0 s, and then slows down at a rate of 1.5 m/s^2 for the next stop sign. How far apart are the stop signs?

6. ## Physics

Two wheels have the same mass and radius of 4.0 kg and 0.35 m, respectively. One has (a) the shape of a hoop and the other (b) the shape of a solid disk. The wheels start from rest and have a constant angular acceleration with respect to a rotational axis

7. ## Physics (College)

One simple model for a person running the 100 m dash is to assume the sprinter runs with constant acceleration until reaching top speed, then maintains that speed through the finish line. If a sprinter reaches his top speed of 10.8 m/s in 2.54 s, what will

8. ## Math Grade 11 U

A water balloon is catapulted into the air so that its height, h, in metres after t seconds is h=-4.9t^2+25t+1.9. when is the ball 13 m high?

9. ## chemistry

A glucose solution contains 55.8g of glucose (C6H12O6) in 455g of water. Calculate the freezing poing and boiling point of the solution. (Assume a density of 1.00 g/ml for water. This what I did, I got moles of C6H12O6, 0.89 moles C6H12O6 then I got the

10. ## pre cal

The yearly attendance at a local movie theater is 82,000 and grows continuously at a rate of 5.1% each year. What is the approximate attendance at the movie theater in ten years?

11. ## geography

Describe the factors that influence the weather, and explain how meteorologists are able to predict changes in the weather.

12. ## To Michael

Here's the question you posted in response to another student. "Ms.Sue do you mind if i ask were you a math teacher or are you just a genius at math and why do you do this help online do you get any benefit for doing this?" I taught a couple of sections of

13. ## math

The number of customers that visit a local small business is 51,200 and has been continuously declining at a rate of 3.8% each year. What is the approximate number of customers that visit the business in 14 years

14. ## triangles

The measures of two of the sides of an equilateral triangle are 3x + 15 in. and 7x – 5 in. What is the measure of the third side in inches?

15. ## chemistry lewis structure

please help me i don't know how to do this! Draw the lewis structure for: SiO3 -2

16. ## math

In the bac of an old cupboard you discover a note signed by a pirate famous for his bizarre sense of humor and love of logical puzzles. In the note he wrote that he had hidden treasure somewhere on the property. He listed five true statements and

17. ## Chem

Does any solid PbCl2 form when 3.1 mg NaCl is dissolved in 0.228 L of 0.12 M Pb(NO3)2. Find the Qsp.

18. ## Calculus

A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is \$1 per gallon and the driver is paid \$8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct

19. ## chemistry

Find the solubility of AgBr in 3.9 M NH3 [Ksp of AgBr = 5.0 10-13 and Kf of Ag(NH3)2+ = 1.7 107]

20. ## Math

Find the value of x. The area of a rectangle = 105 The length is 2x+1 Width is x __________________________________ I tried solving it : Arec = l x w 105 = (2x+1)x 105 = 2x^2 + x 0= 2x^2 + x - 105 This is where I get stuck on...

21. ## biostatistics

among coffee drinkers, men drink a mean of 3.2 cups per day with a standard deviation of 0.8 cups. Assume the number of coffee drinks per day follows a normal distribution. a. What proportion drinks 2 cups per day or more? b. What proportion drink no more

22. ## geography

Identify the five main elements that determine an area's climate, and give a brief description of each element.

23. ## college Algebra

Find the number of years for \$4800 to grow to \$9400 at 6% compounded quarterly. Round to the nearest tenth of a year.

24. ## candle

The flywheel of a prototype car engine is under test. The angular position θ of the flywheel is given by θ = (3.0rad/s3)t3 and the diameter of the flywheel is 36cm. (a)Find the distance that a particle on the rim moves during that time interval. (b) Find

25. ## arithmetic

The 8th term of an A P is 5times the third term while the 7th term is 9 greater than the 4th term.what are the first five term

26. ## physics

A painter on a wooden plank drops a 1.50-kg can of paint from a height of 6 m. Find the following: (A) KE when the height is 4 m above the ground. (B) speed of the can 4 m above the ground. (C) speed of the can 1 m above the ground.

27. ## Calculus

A truck gets 377/x mpg when driven at a constant speed of x mph (between 25 and 75 mph). If the price of fuel is \$1 per gallon and the driver is paid \$8 per hour, at what speed between 25 and 75 mph is it most economical to drive? (Give your answer correct

28. ## urgent physics

A power line carries a current of 110 A at a location where the Earth's magnetic field has a magnitude of 0.37 Gauss (0.37·10-4 T) and points due north, very nearly parallel to the ground. Find the direction and magnitude of the magnetic force exerted on

29. ## geometry

DC = 10 What is the measure of angle ABD?

30. ## reproductive system

re arrange pamouseen to make a word from the reproductive sytem

31. ## Physics

A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.4 m waterfall. The spy’s speed is 14 m/s and the officials’

32. ## Physics

~I got a and b right but c i can't figure out Freight trains can produce only relatively small acceleration and decelerations. (a) What is the final velocity of a freight train that accelerates at a rate of 0.0600 m/s2 for 8.00 min, starting with an

33. ## English

Directions: Revise the following sentences to eliminate unnecessary shifts in tense, mood, voice, or person and number and between direct and indirect discourse. Most of the items can e revised in more than one way. Examples: • When a person goes to

34. ## Physics

What is the wavelength of radio waves of frequency 1400 kHz? (a) 42.9 (b) 214 (c) 42.9 (d) 3*10^8

35. ## math

Paul works at a gas station. He earns \$9.00 per hour. If he works eight hours a day, how much does he earn in a day? He works for six days a week. What is his weekly pay?

36. ## physics

A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 95 kg. The mass of the rock is 0.34 kg. Initially the wagon is rolling forward at a speed

37. ## physics

The block of mass 1.75337 kg has an acceleration of 3.8 m/s2 as shown. What is the magnitude of F? Assume the acceleration due to gravity is 9.8 m/s2 and the surface is frictionless. Answer in units of N

38. ## math

use each of the digits 0 1 3 4 5 exactly once to write a decimal subtraction problem.the difference must be the same as one of the decimals in the problem

39. ## English

What are some examples of literary devices for irony, foreshadowing and symbols in the story of Alex Rider Scorpia rising \

40. ## calculus

at what points on the hyperbola xy=12 is the tangent line parrallel to the line y= -3x

41. ## physics

Initially a small car and a truck are at rest then the car starts pushing a dead battery truck and they both accelerate. Which of the following statement is true? a)The car exerts a larger force on the truck than the truck exerts on the car. b) The car

42. ## math

Find the APR: Amount Financed \$3500; Interest Charged \$ 675; Number of Payments 24

43. ## marketing

How do consumption habits for products such as Scotch whisky vary from country to country? Why are some spirits products and brands strictly local, while some have global potential?

44. ## SUBSTANCE ABUSE COUNSELOR

SOMEONE WHO'S TAKING PENNFOSTER SUBSTANCE ABUSE COUNSELOR

45. ## Physics

An horizontally flying airplane has a 20 m wing span. If the vertical component of the Earth's magnetic field is 2*10^-5 T, and the voltage measured from wing tip to wing tip is 4 mV, What is the ground speed of the plane? (A) 5 m/s (B) 20 m/s (C) 7 m/s

46. ## Chem

The coordination compound has five stereoisomers (geometric plus optical isomers). Select all that apply... A:NH4[Pt(NH3)Cl3] B: tris(ethylenediamine)cobalt(III) sulfate C: tetraaquadichloronickel(IV) chloride D: [Co(NH3)2(en)Cl2]Cl E: [Co(en)2Cl2]Br F:

47. ## physics

A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is

48. ## statistics

A single sample is being used to construct a 90% confidence interval for the population mean. What would be the difference between an interval for a sample of n = 25 and the interval for a sample of n = 100? Assume that all other factors are held constant.

49. ## physics

A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless

50. ## statistics

A sample of n = 9 has a mean of M = 72 with SS = 162. Use the sample to make a point estimate of ì and to construct the 90% confidence interval for U. (Round all answers to two decimal places.) U = ? ± ? ( ?) The 90% confidence interval for U: ( ? , ? )

51. ## physics

A 4.15-g bullet is moving horizontally with a velocity of +369 m/s, where the sign + indicates that it is moving to the right (see part a of the drawing). The bullet is approaching two blocks resting on a horizontal frictionless surface. Air resistance is

Which of the following would be the BEST strategy to follow in the opening paragraph of a letter to clients announcing expanded hours. (a) Explain that the results of a recent survey indicatethat a lot of people are unhappy with the current hours. (b)

53. ## Chemistry

In the reaction between aluminum and hydrochloric acid, how many moles of hydrogen gas would be liberated when 3.612E-2 grams of aluminum are treated with excess hydrochloric acid? Moles of hydrogen gas liberated = mol The atmospheric pressure was measured

54. ## Chem

Arrange these elements P, Mg, N, Br, K in increasing metallic character

55. ## chemistry lewis structure

help me please! dram the lewis structure of CNO - explain me please! thanks

56. ## trig

Find exact value of the expression. sin( 27pi/4 + 17pi/6)

57. ## Physics

In a mass spectrometer, singely ionized carbon-12 (normal carbon of atomic mass number 12) has a radius of curvature of 9 cm. What would be the radius of curvature of singely ionized carbon-14, assuming equal velocities? (A) 12.3 (B) 10.5 (C) 7.71 (D) 3.58

58. ## information literacy

Which of the following sets of Dewey Decimal call numbers is in the correct order 100.01 PRO, 100.1 BLU, 010.1 ABR, 004.15 KWA B. 100.1 BLU, 010.1 ABR, 004.15 KWA, 100.01 PRO C. 004.15 KWA, 010.1 ABR, 100.01 PRO, 100.1 BLU D. 010.1 ABR, 004.15 KWA, 100.01

59. ## physics

A plane flying horizontally above Earth’s surface at 184 meters per second drops a crate. The crate strikes the ground 30.0 seconds later. What is the magnitude of the horizontal component of the crate’s velocity just before it strikes the ground?

60. ## math

In a class of 29 children, each of 20 children has a dog and each of 15 has a cat. How many of the children have both a dog an a cat using Vinn Diagrams

61. ## Physics

The first accurate measurement of the speed of light was made by Roemer in the 17th century. His measurements were based on observations of (a) The timing of the eclipses of the binary stars Alpha and beta Centauri (B) Refraction of light from a star when

62. ## English

Revise the following sentences to eliminate unnecessary shifts in tense, mood, voice, or person and number and between direct and indirect discourse. Most of the items can e revised in more than one way. 1. The greed of the 1980s gave way to the

63. ## maths

whats the for this question if sin3x=cos6x,then x=_____

64. ## Law

"A person who has both rights and duties" is a concept that defines the most basic concept of the law. In U.S. law, a person is defined as having all of the rights specified in the first 10 amendments to the U.S. Constitution (the Bill of Rights), plus

65. ## english help asap

this is my intro to my comparison essay, but i feel like there should be something extra before "an analysis..." but i don't know what i should write. this is what i have so far: Miley Cyrus song “The Climb” is not only one of my favourite songs, but

66. ## Regression Analysis

In order to qualify for federal job training funds, a neighborhood group must provide an estimate of the mean of education level of unemployed youths less than or equal to 21 years old. The group plans to survey youth in its service area. The population of

67. ## Physics

what is the minimum amount of force that must be applied to the sled in order to start it moving? the static friction is 0.30 and the sliding coefficient is 0.10 and the total mass of the sled is 50 kg

68. ## math

If there are exactly 5 times as many children as adults at a show, which of the following cannot be the number of people at the show?

70. ## geometry

Question 14: The following circle has a radius of 8 feet: What is the total area of the shaded regions?

71. ## Physics

The wavelength of light emitted from a distant galaxy by a hydrogen atom is observed to be 400 nm. If it is known that the laboratory wavelength of this light emitted by hydrogen is 380 nm, what is the velocity of the galaxy? (a) .135c away from Earth (b)

72. ## Social studies

Write a paragraph explaining the social and economic effects of an industrial revolution.

73. ## Chemistry

Dissolving one mole of salt in water yields two moles of ions. A:NH4[Pt(NH3)Cl3] B: tris(ethylenediamine)cobalt(III) sulfate C: tetraaquadichloronickel(IV) chloride D: [Co(NH3)2(en)Cl2]Cl E: [Co(en)2Cl2]Br F: sodium hexacyanoferrate(II) None of these

74. ## Physics

At the end of a race a runner decelerates from a velocity of 7.00 m/s at a rate of 0.500 m/s2. (a) How far does she travel in the next 14.0 s in meters?

75. ## chemistry

a student dissolves 0.625 g of pure benzoic acid in distilled water and titrated the resulting solution to the equivalence point using 40.8 mL of the standardized NaOH solution from Part a, assuming that benzoic acid has only one ionizable hydrogen, answer

"I was sorry to hear about your mother's death." Indicate the alternative that both correctly evaluates the sentence and correctly explains the reason for the evaluation. Would it be: (a) Lacks you-attitude because it begins with the word"I" (b) Lacks

77. ## engineering

I need help with my Fire Engineering homework. What is the heat release rate of a flame measuring five feet in height assuming the flame is in the center of a room?

78. ## statistics

A rocket fuel is to contain percent X of a particular chemical. The specification limits for X are 30 to 35%. The manufacturer will make a profit Q(x) on fuel per gallon as follows. Q(x)= 10 cents if 30

79. ## Algebra

Rationalize the denominator: 5 /4-squareroot 5 (five over four minus square root five) Please explain

80. ## Science

A car travelling at 27 m/s2 hits a wall with 48,600 N of force. What was the car's mass?

81. ## geometry

The perimeter of a rectangle is 60 units. Its width is 5 units. What is the area of the rectangle?

82. ## Math

A wooden block that is a rectangular prism is 12 inches long. Melinda cuts the wooden block along its length into 4 cubes. How long is each side of the cube?

83. ## Physics

What is the resonant frequency in an RLC circuit if R=5 , C=6, and L=12 mH, and V-115 V? (a) 593 (b) 41,400 (c) 1560 (d) 1793

84. ## algebra

Solve the equations by finding the exact solution. (a) (1)/(2) x - 3 = 3

85. ## ENGLISHESSAY

While many complain about health care reforms and envy neighboring countries like canada on their single-payer system, there are many complications that come from this stance on healthcare reform. Although Holly Dressel has some good points about social

86. ## English

Could you please check the following sentences for me? Thank you. 1) She delayed taking a shower. 2) She was caught cheating (by a teacher). 3) Sha saw him chatting up a girl. He was seen to chat up a girl. 4) An animal's reaction to a drug is different

87. ## math

The three stooges are a real pain. When you ask one of them a question, they all answer. Futhermore, one of them always lies, and the other two answer truthfully. I asked them who is the smartest. They replied: Curly: I am not the smartest Moe: Larry is

88. ## English-Urgent

I have to find the subjects and verbs in all these sentences, please let me know if I did it correctly. Thank you. A guy whom I work with has a theory about college students. (Verb=work, has) (Subject=guy, theory) He believes that students' majors reflect

89. ## statistics

A sample of n = 9 has a mean of M = 72 with SS = 162. Use the sample to make a point estimate of ì and to construct the 90% confidence interval for ì. (Round all answers to two decimal places ì = ? ± ? ( ? ) The 90% confidence interval for ì: ( ? , ?

90. ## Algebra

Two hoses are connected to a swimming pool. Working together, they can fill the pool in 4 hr. The larger hose, working alone, can fill the pool in 6 hr less time than the smaller one. How long would it take the smaller one, woking alone, to fill the pool?

91. ## light

An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? answer 15 millimeters.

what are the key features of x/(x^2-3x+2)?

Which of the following, if any, is the BEST replacement for "seems to be of importance"? I have the answer as (B) "Seems Important" Is this the correct answer?

94. ## math - another ? - exponentials

The two formulas f(t) = Pa^t and f(t) = Pe^rt provide two models for the same exponential growth or decay function. How are the exact values of a and r related? (Hint: Find a formula for a as a function of r)

95. ## engineering

I need help with homework in Fire Engineering. What flame height would result from a 3 megawatt fire located in the corner of a compartment? This help will be appreciated. Thanks.

96. ## math- precalculus

Help please! I can't seem to get x as the answer to prove that they are inverses of each other! Show what f and g are inverse functions algebraically f(x)= x-1/x+5 g(x)= -5x+1/x-1

97. ## geometry

Line l bisects AB. find AC and AB

98. ## Math

Reasoning Janice said that if you cut a cube into two parts you form 2 smaller cubes. Ling said that 2 rectangular prisms are formed. Who is correct? Explain.

99. ## calculus

for what value(s) of x does the slope of the curve y=-x^3+3x^2+1 take on its largest value

100. ## statistics

If a population has a standard deviation of 5 units what is the standard error of the mean if samples of size 25 units are selected????

101. ## Adverbs and other parts of speech

which one of the following words phrases if the superlative form of an adjective? A.Less B.Slower C.Most active D.more rapidly

102. ## facility planning

How have utilization and design of healthcare facilities changed over the last 150 years? What key factors led to these changes?

103. ## statistics

Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 50 percent of SOC 390 students work more than ____ hours per week

104. ## chemistry(rusting)

Why metal(eg. iron)placed at aqueous solution will be more easily occur rusting?Is it due to the mobile ions in the aqueous solution ?Please give me an detail explanation ,thank you.

105. ## Algebra

How can I tell what direction this parabola open up -2x^2 +16x+24y-224=0 We just started this in class today do I need to change this into another format

106. ## probability

if for two random variables X and Y,is Y=-X then ñ=1

107. ## Physics - high School

2 Long vertical walls are separated by length l. A ramp is placed between the walls as shown below. A block is placed on the ramp and one end and slides without friction towards the other end. Find the ramp angle (theta) which results in the fastest trip

108. ## Physics

A rock thrown with an initial velocity of 35 m/s at an angle of 48° with respect to the horizontal has a range of 963 m on a certain planet. What is the acceleration of gravity on this planet?

109. ## sociology-pls help

similarities between milgram's experiment and stanford experiment pls help

110. ## writing paragraph and sentences

Hello Sir/Mam, This is what i have prepared for my first assignment, please let me know all my mistakes like grammar, speeling, punctuations,language, sentences and any other mistakes which you think i have made. and also i want to know if i have put the

111. ## Science

The force of a 4 kg bowling ball to accelerate to 6 m/s2

112. ## Statistics

Let's pretend the Work variable is normally distributed, with a mean/median/mode value of 22 and a standard deviation of 17. Based on these numbers, we can say that approximately 68 percent of students work between ______ and ______ hours per week. Select

113. ## EnglishCheck

Many complain about health care reforms and envy neighboring countries like Canada on their single-payer system. Nonetheless, the universal healthcare system may have many cost effective benefits for everyone, but who wants reduced prices at the stake of

114. ## CHEMISTY

why is but-1-ene a structural isomer of 2-methylpropene?

115. ## science

Please help with this as I can not understand it at all. Imagine you've been shown a seismogram from an earthquake on which you can see the first arrival of P waves, followed some time later by the first arrival of S waves. You work out that the S wave

116. ## English

I left out three sentences on the use of "enrol" 1) I signed up for/I enrolled in the drama course. I enrolled a technical high school in 1998. 2) I joined the Scouts in 1998. I enrolled in the faculty (at university??) of Medicine 3) I enrolled my child

117. ## algebra

How many solutions are there in the equation -0.2^2+12x+11=0. How do yoy know? What do the solutions represent? Is there a solution that dose not make sense? If so, in what way dose the solution not make sense?

118. ## Physics

A particular magnetic field points west. A proton moved from north to south. What direction is th magnetic force on the proton? Up,down,east or northwest

119. ## Physics

Transformers are used to increase the voltage produced at power plants. Why is it desirable for the power to be transmitted at high voltage? (a) the the transformer induction will be less resulting in less joule heating (b) then the resistance of the wires

120. ## computers

Which of the following types of memory contain data that cannot be modified by the user? (Points: 5) a. simm b. dimm c. RAM d. ROM is it D

121. ## physics

3 beakers are being heated (small, medium and large). consider the first two. both beakers are filled with water and heated for 10 minutes. after about 3 minutes the water in the small beaker the water in the small beaker is boiling; after 8 minutes the

122. ## Science

Force of a 1500 kg rhino to accelerate to 4m/s2 How do I figure this out?

123. ## calculus

A small dog shelter in the shape of a rectangular solid is to have a square base and an open front. If the volume is to be 36ft^3, find the dimensions for which the amount of material needed is a minimum. V=2x*y

Trevor Collins works in the collections department, and he is very successful at writing professional, effective letters to customers whose accounts are overdue. The human resources department asks to use copies of some of his letters in a training course

125. ## derivatives

How do I find the 2nd derivative of x^(-1/15)

126. ## college algebra

Let g(x) = 0.5x + 18. Write the rule for g-1(x). Then, evaluate g-1(x) at x = 20. Enter this result in the space provided.

127. ## accounting

Interfund Premiums -- Actuarial estimates from previous fiscal year to determine \$ necessary to establish a reserve for losses. It was determined that General Fund and water utility should be assessed a 6% fee of total wages/salaries. Pub Safety 5,000,000

128. ## College Algebra

Evaluate the function y=2.55^(x+1) at the value x=1.83

129. ## algebra

How many soluations are there to the equation -0.2x^2+12x+11=0? How do we know?

130. ## statistics

If a population has a standard deviation of 5 units what is the standard error of the mean if samples of size 25 units are selected????

131. ## english

I have to write a short paper on Shakespeare Twelfth Night-Act 5 scene 1 lines 248-262. But what we have to do is to translate those lines into a different "lingo" dialect but I don't even know how to get started. Can someone please help?

132. ## Europe in the 19th century

I have to write a paper on the changes of labor relations in the quarter century before WWI. So far I can only think the journeymen and master craftsmen, and how the journeymen doesn't have to depend on the master anymore. What other changes in the labor

133. ## computer

Which of the following types of computers is considered a portable computer? (Points: 5) a. workstation b. mimicomputer c. server d. notebook is it D

134. ## stats

Determine the standard error of the mean if a random sample of 52 is pulled from a population with µ = 82 and ó = 18. Round your answer to two decimal places

135. ## psy

If someone has a negative attitude toward a particular individual or group, for example, what are the potential implications of their behavior toward that individual or group?

136. ## math

R. C. Droid has developed a new computer. He calls it the Droid computer. Mr. Droid has virtually every aspect of his new company well underway except for his sales force. He has not yet hired any salespeople to sell the Droid computer. Mr. Droid believes

137. ## Algebra-HELP

x and y vary directly. If y = 24 when x = 8, what is the variation constant and write the variation equation. explain work

138. ## MATH HELP HELP HELP HELP HELP

Sn=(n^2+n)^1/2 - n Prove that Sn < 1/2 for all n

139. ## stATS

the standard deviation of the sampling distribution of the means is ____the standard deviation of the population under study.

140. ## algebra - exponentials

Pa^t and Pe^rt are two forms of the same exponential function. One would expect to obtain the same answer for f(18) (after finding P and a and P and r). Explain why you may not get the same answer for f(18) in practice.

141. ## Math

If a guy speaks spanish AND english.. is it mutually inclusive or exclusive? Probability sense.

142. ## Physics

A rocket of mass 4.45E+5 kg is in flight. Its thrust is directed at an angle of 51.1° above the horizontal and has a magnitude of 7.64E+6 N. Calculate the magnitude (enter first) and direction of the rocket's acceleration. Give the direction as an angle

143. ## English

I have a few doubts.I hope you can help me.Thank you. 1) Can you recommend a site where children aged 6-7 can learn English? 2) My child likes playing games on his Nintendo DS. 3) How can you express this: what do you do when you finish surfing the net?

144. ## physics

If a person has a weight of 145 lb at sea level, by how much is their weight reduced when flying on an airplane at an altitude of 10700 m?

What is the role of research in the decision to purchase an e-commerce toy company

146. ## Genetics

1) Do you know if the nucleotide sequence of a mutation tell you anything about its dominance or recessiveness? 2) Do you know the role that Ras play in the signal transduction pathway that makes it an oncogene?

147. ## chem

Im not sure how to go about this: Calculate the number of gramms in 0.65 mole of aluminum carbonate?

148. ## Physics

According to Faraday's law a change in flux through a circuit produces an emf. Which of the following does not produce a change in flux? (a) change in magnetic field (b) change resistance (c) change in area (d) change in orientation angle

149. ## Physics

A bar magnet with its south pole down passes through a conducting ring. As viewed from above the ring, in which direction does the current flow? (a) cw (b) ccw (c) no current flows

6(2x+3)=42

151. ## algebra

Solve -7(11-4w) -15w= negative 27-(50-13w)

152. ## economic

pls show me the chart for production possibility curve

153. ## Science

A 0.2 kg falcon hits a mouse with a force of 5 N. What was its acceleration?

154. ## chem

Im not sure how to go about this: Calculate the number of gramms in 0.65 mole of aluminum carbonate?

155. ## calculus

evaluate the limit 5x^(ln5+1)/(ln8x+1)

In which of thefollowing sentences is therefusal iplied rather than directlystated? (a) "We are not hiring anyone at the moment, but thank you for your interest. (b) "You cannot work in the production area because you are under 18 years old." (c) Employees

Positive roles and actions of individuals that help the group build loyalty, resolve conflicts, and function smoothly include: (a) demonstrating openness and acceptance. (b) taking every opportunityto be the first to speak and insisting on personally

158. ## spanish

Can you give me a example of what two friends do and don't like written in Spanish in an Essay.

159. ## physics

A 50kg person standing on both feet cover a surface about 13 cm x 12 cm. How much pressure is on the sole of their shoes?

160. ## earth

If a person has a weight of 145 lb at sea level, by how much is their weight reduced when flying on an airplane at an altitude of 10700 m?

161. ## English

Could you say: 1) Nobody is going to take/do (instead of "enroll" (which woul be the best choice?) 2) If they had taken a tent, they wouldn't have had to sleep in a field. Thank you.

162. ## literacy

what was the fedstats found in virtual ref room

163. ## math

How do i come up with scenarios for problems like this? -112=7(-5n+4). 2-2(m+6)=5m+5(m+4)

164. ## algebra

What are the two solutions to the equation -0.2^2+12x+11=0? and how do you do them?

165. ## MATH help

If a guy speaks spanish AND english.. is it mutually inclusive or exclusive? Probability sense.

166. ## Physics

A mchanical analody of the resonance in an RLC circuit is (a) flying off a spinning merry-go-round (b) a growing snow ball rolling down a hill (c) pushing someone in a swing (d) ripples in a pond

167. ## human service management

. Are grants more vital to some programs than others?

168. ## computer

On most Windows systems, where is the file location data stored? (Points: 5) a. Boot sectors b. DAT c. FAT d. Folders is it D

Evaluate the derivative of the function below at the point (ð/3, 9.301). (Round to three decimal places.) y= (9/x) + ((cosx)^.5)

170. ## English

Please tell me the meaning of the sentence below: "Everyone but 4 people voted for Menu I." Remember tha we hve two menus to choose from. Thanks.

171. ## maths

matt and ruba each have one coin. The total amount of money is less than 50p. work out the probability that exactly one of the coins is a 10p piece. assume that all possible coins are equally likely. please can you explain i have to know how to do this

A store is designing a new catalog for its fall collection. Which of the following is LEAST likely to increase the store's credibility? (a) Creating a glossy photo layout with a varety of pictures (b) Stating the facts about each product (c) Promising

173. ## social studies

what was the shakers formal name? Wasn't it the "Shaking Quakers"?

Please explain to me why they are exclusive or not exclusive. Event A is that atleast three of toni's five cousins are female Event B is that atleast three of toni's five cousins are male.

175. ## chemistry

.115 mol of solute is put in a container and water is added to give 250ml of solutrion. what is the molarity

176. ## career research&decision making

each occupational field

177. ## Science

The force of a 0.001 kg penny falling at 70 m/s2

what are the key features of x/(x^2-3x+2)?

179. ## English

"Redskin" was originally a term for

180. ## English

I left out the following sentences. Thank you. 1) We have been seeing each other a lot recently= We have been meeting each other.... 2) She is smelling the perfume of the flowers at the moment. She has been smelling the perfume of the flowers for five

181. ## science

what is potential diffrence in details

182. ## ***college algebra***

Let h(x) = x3/2(x - 7)1/3 and g(x) = 200x3 - 47x2 + 9017x + 3. Utilize this information to find the value of (g o h)(7). I worked it out and came up with the answer 1421313.733.... i feel like this isnt right... please feel free to comment :)

183. ## english

what is an appositive phrase?