# Questions Asked onApril 30, 2011

1. ## Chemistry

The Hydrolysis Reactions - Write net-ionic equations for the reaction of each salt with water below. If there is no reaction, write N.R. 1. NH4C2H3O2 2. NH4Cl 3. NaCl 4. Na2CO3 5. NaC2H3O2 6. NaHSO4 7. FeCl3 8. NaH2PO4 9. NaHCO3

2. ## physics

A 0.50 kilogram ball is thrown vertically upward with an initial kinetic energy of 25 joules. Approximately how high will the ball rise ?

3. ## Business Statistics

A company employs 10 people and plans to select a group of 4 of these employees to receive advanced training. How many ways can the group of four employees be selected? I thought this would be rather simple and I am completely stuck.. Any help with a

4. ## Algebra Unit Analysis

I am doing Unit Analysis and I can not fugure out how to set the promble up on these 3. I just need to know how to set it up I can figure out the answer. 1.How many cubic meters are there in a cubic mile? (1 mi = 1609.344 m.) 2.My 1967 Encyclopædia

asked by Shawn L
5. ## Math (difficult)

The value of a new car purchased for \$28,000 decreases 8% per year. Write an exponential decay model for the value of the car. Use the model to estimate the value after 5 years.

6. ## math

A young executive deposits \$400 at the end of each month for 7 years and then increases the deposits. If the account earns 7.2%, compounded monthly, how much (to the nearest dollar) should each new deposit be in order to have a total of \$400,000 after 25

7. ## Math grade 11

An observer in a hot air balloon some distance away from the aqueduct determines that the angle of each depression to each end is 54 degrees and 71 degrees. The closest end of the aqueduct is 270 m from the balloon. Calculate the length of the aqueduct to

8. ## physics

What is the critical angle of light traveling from benzene (n=1.501) into air? Choose one answer. a. 40.05o b. 48.22o c. 41.78o d. 62.63o

asked by ashley --
9. ## Philosophy

The very large increase in allergies over the last thirty years is due to the great success of immunizations administered over this time period. Since immunizations have nearly eliminated life-threatening diseases such as polio, the human immune system

10. ## Chemistry 20

The mass of calcium hydrogen carbonate that would be found in 52.0L of hard water in a bathtub is _______________ g. The amount concentration of calcium hydrogen carbonate in the hard water is __________mmol/L

11. ## physics

The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? Choose one answer. a. The time

asked by ashley --
12. ## math

Suppose an individual makes an initial investment of \$1100 in an account that earns 7.5%, compounded monthly, and makes additional contributions of \$100 at the end of each month for a period of 12 years. After these 12 years, this individual wants to make

asked by help me i'm stuck
13. ## finite math

A young executive deposits \$400 at the end of each month for 7 years and then increases the deposits. If the account earns 7.2%, compounded monthly, how much (to the nearest dollar) should each new deposit be in order to have a total of \$400,000 after 25

14. ## Chemistry

A mixture of KCI and KClO3 weighing 1.80g was heated. The dry O2 generated occupied 140ml at STP. What percent of the original mixture was KCl03?

15. ## physics

The period of a simple pendulum is measured to be 4.0 seconds in a frame of reference. Which of the following is correct when the period of the pendulum is measured by an observer moving with 0.4 times the speed of the light? Choose one answer. a. The time

asked by ashley --
16. ## math

The terms of a single parent's will indicate that a child will receive an ordinary annuity of \$20,000 per year from age 18 to age 24 (so the child can attend college) and that the balance of the estate goes to a niece. If the parent dies on the child's

asked by stuck on this one ?
17. ## Advanced Algebra

Solve the equation 4e^x -2=14 I got it this far... 4e^x=16 But now what?

18. ## Quotes about English language origin

So I wanted to start my etymology paper about fascinating word origins with a quote as my attention grabber. I am looking for a quote that talks about the english language and the origin of most of its words. Some interesting quote. I don't even know if

19. ## physics

Marks: 5 In an experiment conducted using the Young's double-slit apparatus, the separation between the slits is 20 µm. A first-order constructive interference fringe appears at an angle of 2.5o from the zeroth order (central) fringe. A. What wavelength

asked by ashley --
20. ## math

If \$3000 is deposited at the end of each half year in an account that earns 6.2% compounded semiannually, how long will it be before the account contains

21. ## physics

Marks: 2 The time taken by the space craft moving at a speed equal to half the velocity of light to go from star A to star B is 2 years as calculated at the Earth station. Which of the following is correct for the time measured by the astronaut in the

asked by ashley --
22. ## physics

What is the image distance of a 4 cm tall object placed 40 cm from a concave mirror having a focal length of 10 cm? Choose one answer. a. -13.3 cm b. 13.3 cm c. -40.0 cm d. 40.0 cm

asked by ashley --
23. ## math

Suppose a young couple deposits \$700 at the end of each quarter in an account that earns 7.1%, compounded quarterly, for a period of 6 years. After the 6 years, they start a family and find they can contribute only \$200 per quarter. If they leave the money

asked by cant figure this out :(
24. ## Chemistry

Dilute H3PO4(aq) and NaOH(aq) are mixed in chemically equivalent quantities. Write the formula equation for the reaction

25. ## Chemistry

How many grams of Li2SO4 are needed to prepare 250.0 mL of a 4.0% m/v Li2SO4 solution?

26. ## calculus

Choose the correct quantity to fill in the blank: Integral_______ dx = (ax2 - a2)4 + C.

27. ## Maths

From this past 4 results 17-90-48-84-41. 46-6-15-64-85. 78-41-65-50-54. 52-70-30-42-29. Can anyone predict the next 5/90 lotto winning numbers please

28. ## physics

Monochromatic light of wavelength 550 nm passes through a diffraction grating that has 55000 lines/m. A bright line appears on the screen at an angle of 12.23o from the central bright fringe. What is the order of this bright line? Choose one answer. a. 5

asked by ashley --
29. ## healthcare

What are the benefits and challenges of one technologically based communication modality—e-mail, a web-based forum, and so forth—involving patients and health care providers? at least 2 benefits and 2 challenges

30. ## math

If \$3000 is deposited at the end of each half year in an account that earns 6.2% compounded semiannually, how long will it be before the account contains \$130,000?

31. ## math

What is the size of the payments that must be deposited at the beginning of each 6-month period in an account that pays 6.6%, compounded semiannually, so that the account will have a future value of \$140,000 at the end of 17 years?

asked by cant figure this out :(
32. ## programming logic and design

what is the output by each psuedocode segments ? 1. a=1 b=2 c=5 while af d=d+1 e=e -1 endwhile output d, e, f 3. g=4 h=6 while g

33. ## physics

An observer measures the length of an object. In which of the following cases is the measured length at a minimum? Choose one answer. a. The observer and the object move with the same speed v in the same direction. b. The observer and the object move with

asked by ashley --
34. ## child psychology

the only ssri that's currently fda approved for the treatment of depression in children is a.paraxetine(paxil) b.fluxetine(prozac) c.sertraline(zoloft) d.trimoxiphine(xantax) I chose A im still unsure

35. ## Life orientation (research)

Research one factor that causes ill health , accidents , crises or disasters: 1) alcoholism

36. ## physics

Marks: 2 The time taken by the space craft moving at a speed equal to half the velocity of light to go from star A to star B is 2 years as calculated at the Earth station. Which of the following is correct for the time measured by the astronaut in the

asked by ashley --

A planet is in circular orbit about a remote star, far from any other object in the universe. Which of the following statements is true? a. None of the other statements are true. b. There is only one force acting on the planet. c. There are two forces

38. ## physics

Jack and Jill blow their whistles at the same time producing sound waves at frequencies of 400 Hz and 404 Hz respectively. How many beats per second are heard from the superposition of the two waves? Choose one answer. a. 400 b. 404 c. 4 d. 8

asked by ashley --
39. ## math

What is the size of the payments that must be deposited at the beginning of each 6-month period in an account that pays 6.6%, compounded semiannually, so that the account will have a future value of \$140,000 at the end of 17 years?

asked by plz help
40. ## probability

Ryan spent a dollar on a Tri-State Megabucks ticket, enticed by a big jackpot. Ryan chose six different numbers from 1 to 40, inclusive, hoping that hey would be the same numbers draw later by lottery officials. Sad to say, none of Ryan's choices were

41. ## science

the ______ value indicates the amount of resistance in 1cm of insulation

42. ## physics

If an observer is traveling parallel to a rod at twice the speed of the rod, what is does the observer perceive the length to be? Choose one answer. a. The length of the rod remains the same. b. The length of the rod will become twice its original value.

asked by ashley --
43. ## math

If \$86,000 is invested in an annuity that earns 5.2%, compounded quarterly, what payments will it provide at the end of each quarter for the next 3½ years?

asked by ughh help
44. ## Trading Posts, dont get it.

What were the effects of having to use rivers to complete such long journeys? I don't know. Please help.

45. ## chemistry

How many grams of sodium are contained in 10 grams of sodium sulfate?

46. ## Algebra

Find a power function of the form y=ax^b whose graph passes throught the points (2, 5) and (8, 12). How do i solve this??

47. ## Math

Dominic was 8 years old when his sister was born. Now the sum of their ages i 56. How old is Dominic now?

48. ## physics

Which of the following statements is not true about resonance? Choose one answer. a. It is easy to get an object to vibrate at its resonant frequencies but difficult to get it vibrate at other frequencies. b. A simple pendulum has many resonant frequencies

asked by ashley --
49. ## Critical Thinking (philosophy)

1. 21{1[2(24)24]}> The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses (Points : 1)

50. ## Math

Could someone answer this question so I understand it. Thanks Find the supply function: p = S(x)=5(e^0.02x - 1) Find the average price (in dollars)over the supply interval [31,36]. Round to decimal places as needed. The average price in dollars is ?

51. ## calculus

Choose the correct quantity to fill in the blank: Integral_______ dx = (ax2 - a2)4 + C.

52. ## physics

If an observer is traveling parallel to a rod at twice the speed of the rod, what is does the observer perceive the length to be? Choose one answer. a. The length of the rod remains the same. b. The length of the rod will become twice its original value.

asked by ashley --
53. ## AP Chemistry

So... this is the question which is from AP chem 2006 past paper. Suppose that a stable element with atomic number 119, symbol Q, has been discovered. a) write down the ground-state electron configuration of Q, showing only the valence-shell electrons.

54. ## math

A house is rented for \$2000 per quarter, with each quarter's rent payable in advance. If money is worth 2%, compounded quarterly, and the rent is deposited in an account, what is the future value of the rent for one year?

asked by plz help
55. ## physics

What is the magnification of a 4 cm tall object placed 40 cm from a concave mirror having a focal length of 10 cm? Choose one answer. a. 0.33 b. -0.33 c. 1.33 d. -1.33

asked by ashley --
56. ## Philosophy ( Critical Thinking)

1. The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses (Points : 1) Jerry with

57. ## physics

What is the critical angle of light traveling from benzene (n=1.501) into air? Choose one answer. a. 40.05o b. 48.22o c. 41.78o d. 62.63o

asked by ashley --
58. ## chemistry

Calculate the pH at each stage in the titration of 25.0 ml 0.10 M KOH(aq) with 0.25 M HCl(aq). 1. Initiall ( before titration). 2. After addition of 5 ml of HCl. 3. After addition of 9.5 ml of HCl. 4. At the equivalent point. 5. After addition of 12 ml of

59. ## Advanced Algebra

Find the exponential function of the form y=ax^b whose graph passes through the points (-3, 1/27) and (0,1). I don't know where to begin with this problem??

60. ## science

A stretched string has a third harmonic frequency of 600 Hz. What is the frequency of the second harmonic?

61. ## Calc 2

Find the second derivative (d2y/dx2) for the curve given by x = 2·cos() and y = sin()

62. ## chemistry

describe how you can crystallize potassium nitrate from its aqueous solution

63. ## algebra 2

what is the rule for the geometric sequence: 5000, 500, 50, 5?

64. ## Calculus

Find the derivative of y=x^2/ln3x.

65. ## science

The major difference between transverse and longitudinal waves is the?

66. ## Mathematics

What are consecutive numbers? -The sum of TWO consecutive whole numbers is 99. What are they? -The sum of THREE consecutive whole numbers is 99. What are they? Can someone please show me if there is working out? (if needed)

asked by Crissy XD
67. ## physics ---- really dnt get this at all

The third harmonic of a guitar string has a frequency of 170 Hz. What is the length of the guitar string if the speed of the waves on the string is 125 m/s? Choose one answer. a. 1.103 m b. 2.206 m c. 0.368 m d. 2.040 m

asked by ashley --
68. ## College math

Highwq curves. If a circular curve without any banking has a radius of R feet, the speed limit L in miles per hour is L = 1.5 aqrt(R) (a) Find the speed limit for a curve having a radius of 400 feet. (b). If the radius of a curve doubles, what happens to

69. ## chid psychology

which of the following is not true of the meta-analytical finding of reseach theory with children? A. changes achieved by children reciving treatment are greater than those for children not receiving treatment b. treatment effects are larger for problems

70. ## physics

Marks: 2 Light cannot be linearly polarized by: Choose one answer. a. transmission b. reflection c. diffraction d. scattering

asked by ashley --
71. ## art

Titles of works and company names should be treated as singular nouns. For example: “The Secret Life of Bees is a novel that was made into a movie last year.” true or false

“Big Changes for a Small Hospital” As F. Nicholas Jacobs toured the Windber Medical Center facility, he was dismayed by the industrial pink painted walls, the circa 1970 furniture, and the snow leaking through the windows of the conference room.

73. ## physics

What is the angle of refraction of a light ray that enters the surface of a calm lake from air at an angle of 45o to the normal? The refractive index of water is 1.333. Choose one answer. a. 32.04o b. 45.00o c. 59.99o d. 33.76o

asked by ashley --
74. ## Chemistry 20

Sorry, the 1st part to those 2 questions are: Hard water contains metal ions, most commonly calcium and magnesium ions. Some moderately hard water is found to contain 200ppm of calcium hydrogen carbonate.

75. ## Math(Please check. Thank You)

1) solve:e^x(x^2-4)=0 e^x=0 and then (x+2)(x-2) so x=2, -2 2) differentiate: y=ln(6x^2 - 3x + 1) 1/(6x^2 - 3x + 1) * 12x-3 3) differentiate: y=e^-3x+2 -3 * e^-3x+2 4) evaluate: 2^4-x=8 2^4-x = 2^3 4-x = 3 -x=-1 so x=1 5) differentiate: x^3 + y^3 -6 =0 3x^2

76. ## math

The perimeter of a rectangle is 194 inches. the length exceeds the width by 31 inches. find the L&W

77. ## probability

you have 16 coins that are heads up and 18 coins that are tails up. After you add some coins that are tail up the ratio of heads up to tails up is 1:1.5. How many are tails up?

78. ## statistics

an employee earning \$10.85 per hour has been awarded a 3.5 percent increase. What is the hourly salary

79. ## Math

Mary B deposits \$8500 into a savings account, compounded monthly at a nominal interest rate of 9 percent, as part of a savings plan that she would like to undertake in 5 years. 1) What is the effective interest rate per annum? 2) How much money would she

80. ## physics ---- really dnt get this at all

A 5.00 cm tall candle is placed at a distance of 50.0 cm from a double convex lens having a focal length of 15.0 cm. What is the image distance? Choose one answer. a. -21.4 cm b. 21.4 cm c. 65 cm d. 35 cm

asked by ashley --
81. ## Trading Posts

About the Trading posts...HBC and NWC. Why were many posts of the rival companies placed next to each other? Okay so this is because of competition. Individuals seeked for different benefits. Please Ms. Sue help me expand on this.

82. ## Chemistry

The free energy change for the dissolution of cuco3 at 25celsius is 56.246KJ/mol. What is the solubility of this compound. I used delta G/-RT = lnKsp but the answer i got was wrong.

83. ## physics

These are problems I have been stuck on and can't figure out. Help would be greatly appreciated. 1. Blue and yellow light combinte to produce white light because ______ (Please explain what it's the correct answer) a.they absorb each other's wavelengths b.

84. ## english- news report

Pls i need help with this newsreport. can you pls tell me if it sounds like it or not and you can also advice me on somethings to make it good. Headline: The death of King Duncan. Byline: Victoria Sinec. Lead paragraph: Duncan, the King of Scotland killed

85. ## CHEM (HELP PLS)

Suggest the syntheses of putrescine and cadaverine from ethyl bromide I don't think I can use Grignard can I? PLEASE HELP. CH3CH2Br + CH3CH2Mg/EtoEt -> CH3Ch2Ch2Ch2MgBr + NaN3/EtOH -> CH3Ch2Ch2Ch2N=N=N + LiAlH4/H20 CH3Ch2Ch2Ch2NH2? Then what? does this

86. ## Chemistry

Suppose a compound could point in any of two directions in the solid and still have the same energy. How many molecules would there be if the total entropy of a solid sample of this compound was 8.174e-9J/K I used S= klnW and got lnW = 5.92e14. How do i

1) where is the function f(x)= 5 / (2x-4)^3 increasing. I know the answer is for all of x but I do not know how to get this. I know that you can write the equation as 5(2x-4)^-3 2) Let a, b, and c be fixed with a>0 and let f(x)=ax^2 + bx + c. Which of the

88. ## science

One person talking softly in a room is about 60dB. If 100 people in the room are all talking at the same level the intensity is now?

89. ## Algebra

Solve the equation. 2log3 y = log3 4+ log3 (y+8) Here's what ive got take out the logs and say y^2= 4+ y +8 which simplifies to (y^2)-y=12 how do i simplfy the y?

90. ## Physics Urgent!!!!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

91. ## Maths

Peter invests \$12500 for 5 years at 12 percent per annum,compounded monthly foe the first two years, and 14 percent per annum compounded simiannually for the next three years. How much will Peter receive after five years?

92. ## math need help

Find the future value of an annuity due of \$100 each quarter for 2½ years at 11%, compounded quarterly.

93. ## calc

Let f(3) = 0, f '(3) = 6, g(3) = 1, and g '(3) = 1/3. If h(x) = f(x)*g(x), find h '(3).

94. ## science

what is the state of matter in which particles have lowest energy

95. ## science

What travels the slowest? Sound waves in water, steel, air, helium or visible rediation?

96. ## spanish-college essay!

Se puede revisar mi ensayo por favor? Es un ensayo de colegio. Gracias! Cuando la mayoría de la gente oye la palabra “El machismo” se la asocia con el sexismo. Se piensa que las mujeres y hombres son desiguales. Se pregunta: ¿por qué las mujeres

97. ## physics

Which of the following statements is true about a mass, which is attached to a spring and moves with simple harmonic motion on a frictionless horizontal surface? Choose one answer. a. The kinetic energy of the mass is maximum at the end positions. b. The

98. ## science

Unpolarized light is shown through two polarizing filters that are at 90 degrees. What fraction of light will pass through both filters?

99. ## Economics

Use the following calculations in the relevant formulas to answer the questions Need Help don't know where to start n = 7 (Greek)E(x − x̄) = 4,924.00 x̄ =44 E(y − ȳ)= 904,627.43 ȳ =553 E(y − ŷ)= 35,168.50 Exy =235,843 E(ŷ − ȳ)=

asked by Kieran McCamment
100. ## Math

Suppose an annuity will pay \$18,000 at the beginning of each year for the next 8 years. How much money is needed to start this annuity if it earns 6.9%, compounded annually?

asked by math help plz
101. ## math

A used piece of rental equipment has 3½ years of useful life remaining. When rented, the equipment brings in \$300 per month (paid at the beginning of the month). If the equipment is sold now and money is worth 5%, compounded monthly, what must the selling

asked by math help plz
102. ## CHEM

What is the number of "UNBOUND" electrons in H2O...its not 0 or 2....is it 1??

103. ## Calc 2

Find the corresponding rectangular coordinates for the polar point (4, -/6).

104. ## English

The problem is I don't know how to answer this question. Many writers create characters who are blissfully unaware of how they are perceived by others. One of the most complex examples of this is Chaucer's Pardoner. In one character we see a complex mix of

105. ## com156

courses per year the total comes to \$8,760. With this information financial aid does not begin to cover my tuition for a year. The only other option I have is to apply for a student loan, scholarship, or a credit card. There’s a downside to using a

106. ## physics

A 5.00 cm tall candle is placed at a distance of 50.0 cm from a double convex lens having a focal length of 15.0 cm. What is the image distance? Choose one answer. a. -21.4 cm b. 21.4 cm c. 65 cm d. 35 cm

107. ## chemistry

What mass of the following would be needed to make 50 ml of 0.100 M solution? (i) KOH (ii) Na2CO3 (iii) NaHCO3 (iv) Na2CO3•10H2O (v) Ba(OH)2 (vi) KMnO4

108. ## Social Studies

Put these facts in your only words *Metacomet is an indian cheif who hated christianity. * He would always turn down offers to convert to christianity. *He was the second son of Massasoit *Massasoit died in 1661 *Metacom's older brother Alexander was chief

109. ## Chemistry

What is the total energy transfer(in KJ) when 10.00 pounds of water vapor at 110 degrees C becomes ice at 253K? Assume that the specific gravity of water = 1.00. The answer I got was around 12,000 KJ. Is this correct?

110. ## Physics Urgent!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

111. ## 6th grade english

How would I change the following sentences to exclamatory? The moon travels at more than 2,300 miles per hour Some people thought the moon was made out of green cheese

112. ## geology 245

Power point on factors and forces of geological features for the Barnett Shale

113. ## Math(Please check)

evaluate the integral integral of 3 to 2 x/(x^2-2)^2 dx u=x^2-2 du=2x dx 1/2 du = x dx integral of 1/u^2 du -1/(x^2-2) Then I plug in 3 and 2 and subtract them form each other -1/(3^2-2) - (-1/(2^2-2) Is this correct?

114. ## islam

a.What does “seven earths” as implied in verse 12 surah at-Talaq actually mean? b.Why does the Quran use only a singular noun(al-ardhu) when describing the earth(or seven earths) in this case whereas when describing seven heavens a plural noun

115. ## English

1. He made them be quiet in the library. 2. He made them quiet in the library. 3. He had them be quiet in the library. 4. He had them quiet in the library. 5. He watched them be quiet in the library. 6. He watched them quiet in the library. (Which ones are

116. ## Math

Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent. Select a sample of data values (20 to 50) for each group. Then address the following (and a little more) in your project. a. Write

117. ## Trading Posts

About the Trading posts...HBC and NWC. Why were many posts of the rival companies placed next to each other? This is so confusing. I am thinking that it might be for business matters, but I would like the whole thing please. And no sites, since they do not

118. ## pLZ help

Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent. Select a sample of data values (20 to 50) for each group. Then address the following (and a little more) in your project. a. Write

119. ## world history

is pennsylvania's government a monotheistic or not?

120. ## Chemistry

So I am writing a lab report and Im stuck with calculating the enthalpy change of combustion of the following reaction: Mg+2HCl--> MgCl2+H2 .I am given the mass of Mg which is 5g and the concentration of HCl which is 2M and the volume of HCl which is 50

121. ## science

A sound produces an intensity of 1 W/m2 at a distance of 10 m from a source. What would be the intensity at a distance of 5 m from the source?

122. ## science

Three different resistors: 10 ohm, 20 ohm, and 20 ohm are connected in parallel, the overall resistance is:

123. ## calculus

Find the general indefinite integral ∫cosxsin^4xdx

124. ## pre school

The comparison to children with adhd-hi, children with the subtype adhd-pi are greater risk for? A.ANTISOCIAL BEHAVIOR B.REJECTION FROM OTHERS C.ANXIETY AND MOOD DISORDERS D. PLACEMENT IN SPECIAL EDUCATION CLASS *I THOUGHT C BUT WASN'T SURE

Logarithmic differentiation f(x)=(2x-1)^-2 (x+3)^4 at x=1 f'(x)= -2*2/2x+1 + 4*1/x+3 [(2x-1)^-2)(x+3)^4 and then I plug in 1. I am having trouble getting an answer when I plug in 1.

126. ## 6th grade english

Please tell me if I have identified the following the sentences correctly as being declarative, exclamatory or impeative: The Italian word fo "moon" is luna Declarative Wow, that's how you say it it Spanish, too Exclamatory I have heard the words lunatic

127. ## Calc 2

Consider the line passing through the points (2, 1) and (-2, 3). Find the parametric equation for y if x = t + 1.

128. ## History

What were the economic and social differences between the North and the South around the 1830s? What types of classes lived there, and what kinds of labor and stuff did they do?

129. ## math

whats the excluded value of 30k - 20 over 90k

asked by Charnai Smith
130. ## math

2 questions please 6x

131. ## English

Can you please check if the two answers to the questions (3/4) are correct? It's really urgent. Thank you. 1)Jamal is planning a trip around the world on his motorbike with his friend Simon. 2)They are going to leave from London next week. Then they will

132. ## math

is it possible for two rays to be parsllel to each other is it possible for two rays to be parallel to each other

133. ## Etymology

So I posted like 3-4 weeks ago that I was doing a project about fascinating etymology stories and I got a few great websites:) I only could find a few really funny and interesting stories that my classmates would actually enjoy/ want to listen to. I have

134. ## calculus

Find the coordinates of the vertex of the graph of f(x)=2x^2+10-1

135. ## Calculus

Find the coordinates of the vertex of the graph of f(x)=2x^2+10x-17.

136. ## Economics

Use the following calculations in the relevant formulas to answer the questions Need Help don't know where to start n = 7 ¢²(x − x̄)©÷ = 4,924.00 x̄ =44 ¢²(y − ȳ)©÷ = 904,627.43 ȳ =553 ¢²(y − ŷ)©÷ = 35,168.50 ¢²xy =235,843

asked by Kieran McCamment
137. ## algebra

A 125-ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 25 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and

138. ## 6th grade english

I was just checking to see if anyone read my response to the information that you all gave me. I was asked to check back with you all. My post was at 5:49pm Thanks

139. ## math

Select a variable (mean or proportion) to determine if there is a difference in the two groups. Samples must be independent. Select a sample of data values (20 to 50) for each group. Then address the following (and a little more) in your project. a. Write

140. ## English

1. I would prefer not to eat that. 2. He slaved at his job so his family would have everything they needed. 3. Your cholesterol balance is good. 4. He slipped into the room. 5. Clip two sheets of paper together. 6. The whole universe knows it. 7. I won't

141. ## English

I'm posting you my questions again since I mispelt the word English before. Thank you very much for your help! I have a few more doubts. I also wanted to know if the sentence "It was three days since I had last met him" is a mistake. I just applied a

142. ## Math

Below are the amounts of money a waiter earned each day last week. \$120 , \$170 , \$150 , \$190 , \$130 , \$200 , \$160 . What is the interquartile ?

asked by Edwin Rodriguez
143. ## aglbera

A 125-ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 25 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and

144. ## English

In my previous post I didn't include the USA when mentioning the countries they are travelling through. Shall I include it? Can you please check again? Thank you. 1) Which countries are they travelling through? They are travelling through Ukraine,

145. ## Physics Urgent!!!!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

146. ## English

I forgot to include the following sentences. They are really urgent. 1)He hadn't read a book since he was a boy/ "by the time he was a boy he hadn't read a book (is a mistake?) 2) She told me she had dumped him/broken/finished with him. (are they all

147. ## Algebraic Expressions

2 / (x-1)^3 + 3 / (x-1)^2 + 4 / x-1 Two of us get 4x^2 - 5x + 3 / (x-1)^3 The book gives 4x^2 - 5x + 3 / (x-1)^3 Can anyone help with this one.

148. ## science

Transverse waves can propagate through which of the following? solids, liquids, gasses, or what combination of these?

149. ## Math

Consider the line passing through the points (2, 1) and (-2, 3). Find the parametric equation for y if x = t + 1.

150. ## Algebra

Expand the expression of log5x^(1/3)y^6 5 is the base of the log. this is pretty tricky stuff and im not sure how to attempt it..

151. ## Algebra

solve the eauation check for extraneous solutions. log5 x=4

152. ## Algebra

ok did i do this right? evaluate the expression log(base4)(16)(4) log(4) 16 + log(4) 4 ? can you do that?

153. ## math

Can you tell me if I have the correct answer to this problem. A formula to determine the area of a person’s skin in square inches is s=15.7w^0.425 h^0.725 where w is weight in pounds and h is height in inches. Use S to estimate the area of a person’s

154. ## eth/125

Write a 1,050- to 1,400-word research paper in which you identify the linguistic, political, social, economic, religious, and familial conventions or statuses of four Hispanic groups living in the United States. Your paper must address Mexican Americans,

Determine the integral by making an appropriate substitution integral of 8x cuberoot srqt(4x^2-9) dx let u= 4x^2-9 du= 8x dx I do not know what to do now

156. ## Physics Urgent!!

Newton’s Law of Gravity specifies the magnitude of the interaction force between two point masses, m1 and m2, separated by the distance r as F(r) = Gm1m2/r^2. The gravitational constant G can be determined by directly measuring the interaction force in

157. ## English

i forgot to include the following sentences. Thank you. 1) You keep mispelling the word "together". Rewrite it correctly at least 10 times. 2) Particular attention was paid to the setting (was given is a mistake?) 3) The novels are preceded by a preface,

asked by Henry 1
158. ## Science

A vibrating string produces the highest pitch if it's; A) loose and long B) loose and short C) tight and long D) tight and short

159. ## maths

cos(a+b)=m(cos(a-b) then tan a=?

160. ## Engliu

I have a few more doubts. I also wanted to know if the sentence "It was three days since I had last met him" is a mistake. I just applied a grammar rule according to which "it was ... is followd by the past perfect with the meaning "I hadn't met him for

161. ## Calc

Consider the line passing through the points (2, 1) and (-2, 3). Find the parametric equation for y if x = t + 1.

162. ## calc

Find the corresponding rectangular coordinates for the polar point (4, -/6).

163. ## Religious Studies

From an academic perspective, when does the Job text first emerge in history?

164. ## science

An object is 15 cm from a converging lens forms a real image 15 cm from the lens. The magnification is?

165. ## geometry

I have a triangle garden in my backyard. one side is 4 meters and another side is 6 meters. the angle formed by these two sides is 72 degrees. what is the area of the garden?

166. ## science

Three different resistors: 10 ohm, 20 ohm, and 20 ohm are connected in series, the overall resistance is:

167. ## differential calculus

use the product rule to find the derivatives of the given function y=(3x^2-8)^2

168. ## physics

what is the value of electric field intesity at a point between two co centric sphere

169. ## Science

What is friction? I don't understand the definition.

170. ## science

Which of the following compounds has more than one some; PtCl_5NH_3, Co(BH_3)_4Cl_2, Pt(Co)_2Cl_2, Rb_3[Cr(CN)_6]

171. ## Geology 245

I am in need of help with my final project in Geology. I have to create a 12-15slide powerpoint presentation on Factors and Forces of Geological Features, The Barnett Shale. I have the final rubric Final Rubric: |Factors and Forces of Geological Features

172. ## Really Confused

About the Trading posts...HBC and NWC. Why were many posts of the rival companies placed next to each other? This is so confusing. I am thinking that it might be for business matters, but I would like the whole thing please. And no sites, since they do not

173. ## algelbra 2

I have a 3.50 but have 7 disks problem and can't think straight, my last class before i graduate. I need answers to Math 117 week six quiz? Can u Help, just put \$ in pay PaL.

174. ## Math

Whats 6 x 4 ?

asked by Katrina Alex

1) h(t)=20(5/8) - 16(5/8)^2 + 10 = 65/4 All I need to know for this is how to calculate the fraction parts to get 65/4. I am not good with fractions. 2) A manufacturer's profit from producing x units of a product is given by P(x)=0.002x^3 - 0.01x^2 + 0.5x.

176. ## chemistry

OF THE FOLLOWING SUBSTANCES, WHICH HAS THE LARGEST AVERAGE SPEED AT 25DEGREES. CO, NH3,H2,N2?

177. ## Art History

Help please... What do you believe the amphitheater in Pompeii reveals about the culture that created it?

178. ## science

Which of the following travels the fastest? sound waves in air, sonar, microwave radiation, waves produced by a sonic boom, Ultrasonic waves?

179. ## science

The intensity of a 50-dB sound is reduced by one-half. What is the new intensity of the sound in dB?

180. ## science

Polarized sunglasses operate on the principal that?

181. ## math

you have16 coins that are heads up an18 coins that are tails up. After you add some coins that are tails up, the ratio of heads up to tails up is 1 to 1.5. How many coins are tails up? How many coins are in all?

182. ## calculus

Evaluate the Integral ∫1, 0 x^3(1+x^4)^6dx where 1=b 0=a for the limits

183. ## Algebra

Solve the equation and check for extraneous solutions. 10^((x^2)+1)=100,000 How do i handle this when the exponents have exponents?

184. ## Spanish

How do you say "make a mess" in spanish?

185. ## math

if john mowes his lawn in 2 1/2 hours how much of the lawn does he mow in 1 hour?

186. ## English

I still have the following doubts. I included the various alternatives. Thank you 1) Prospero calls Caliban a lying slave instead Miranda calls him a horrible slave. Is "instead" correct? I would have used "while, whereas" or I would have started a new

asked by Henry 1
187. ## CHEM (HELP PLS)

Suggest the syntheses of cadaverine (pentane-1,5-diamine) from 1,5-Dibromopentane

188. ## Math

Determine the integral by making an appropriate substitution integral of 8x cuberoot srqt(4x^2-9) dx let u= 4x^2-9 du= 8x dx I do not know what to do now

189. ## Religious Studies

1. What is “the problem of evil,” and why is it particularly problematic for Western, monotheistic religious traditions?

190. ## math

how do i find the cubed root of anumber

191. ## math

Interest= 472.50 principal= 750 rate=7% time=???

192. ## math

Find a 4-digit number so that if you put a decimal point in the middle the number you get is the average of the two numbers on either side??

193. ## PHYSICAL SCIENCE

compute the freezing point of 21.6 g CuSO4 in 1.00 x10 to the 2nd power gH2O

194. ## science

Which one would be the safest? a. a current of 0.001 amps at 120 volts b. a current of 0.0001 amps at 24,000 volts c.a 5 volt source with unlimited current potential

195. ## math

4,35,60,440 expand in words