Questions Asked on
August 23, 2010

  1. math

    write 480 in a) 1 significant figure b) 2 significant figures c) 3 significant figures d) 4 significant figures

    asked by Jack
  2. Math

    Determine the equation of the parabola with roots 2+sqrt(3) and 2-sqrt(3), and passing through the point (2,5).

    asked by Emily
  3. chemistry

    what mass of solid AgBr is produced when 100.0 mL of 0.150 M AgNO3 is added to 20.0mL of 1.00 MNaBr? i keep getting the answer 3.75 g however when i checked in the back of the book it gives me 2.82 g.. can you please explain the universal steps for me

    asked by Crickett
  4. math

    which has greater volume? a) 1.0 kg of feathers or 1.0 kg of lead b) 100 g of gold or 100 g of water c) 1.0 L of copper or 1.0 L or mercury

    asked by Jack
  5. Math

    a 25.00 gram sample is placed in a graduated cylinder and then the cylinder is filled to the 50.0 mL mark with benzene. the mass of benzene and solid together is 58.80 gram. assuming that the solid is insoluble in benzene and that the density of benzene is

    asked by Anne
  6. MATH

    what happend to ray floob after he fell off the empire state building

    asked by Arely
  7. physics

    How do the pressure variations with depth affect our ability to explore the ocean? Consider the challenges of scuba diving and submarines.

    asked by Anonymous
  8. algebra 1

    An item costs c dollars and 6% sales tax is charged The total cost including sales tax is given by the expression 1.06c you are buying a skateboard that cost $75 what is the cost of the skateboard

    asked by Brandon
  9. algebra

    a farmer is taking her eggs to market in her cart, but she hits a pothole, whick knocks over all the containers of eggs. Though she herself is unhurt, every egg is broken. So she goes to the insurance agent who asks her how many eggs she had. She says she

    asked by Jean
  10. chemistry

    what is the pH of the buffer when 4ml of 1M HCl is added to a 100ml buffer solution made using 5ml 1M Na2HPO4 and 5ml 1M NaH2PO4? The pKa for H+ + HPO4- ==> H2PO4 is 6.82. What would happen to the pH if the 100ml buffer had been made up at the starting pH

    asked by matt
  11. math

    is this anwer correct 9a^2b + 3c + 2a^2b + 5c = ANSWER : 11a^2 + 8c^2 9a^2b + 2a^2b= 11a^2 3c+5c = 8c^2 so the answer IS 11a^2 +8c^2 there are choices a) 19a^2bc b) 11a^2b+8c c) 11a^4b^2 +8c^2 d) 19a^2b^2c^2

    asked by kamleen
  12. Chemistry

    How can i rearrange this Clausius-Clapeyron equation so that 1/T2 is on one side? In P2/P1=delta H vaporization/R (1/T2- 1/T1) I am trying to find at At what temperature does acetone have Pvap= 111 mm Hg. Acetone, a common laboratory solvent, has Delta H

    asked by Sar
  13. Chemisty (Sig Figs)

    Each of the following numbers was supposed to be rounded to two significant figures. For each one below, decide whether it was correctly rounded or not, and for those that were incorrectly rounded, correct them. (a) 3.149 e3 to 3.2 e3 Its incorrect but I

    asked by Hannah
  14. physics

    to tighen a nut you exert 15N of force on wrench, which is a distance of 0.50m from pivot point. calculate amonut of torque produced...

    asked by deb
  15. Physics - Satellite Motion

    The polar- orbiting environmental satellites (POES) and some military satellites orbit at a much lower level in order to obtain more detailed information. POES complete an Earth orbit 14.1 times per day. What are the orbital speed and the ltitude of the

    asked by Shaila
  16. physics

    Is the acceleration due to gravity more or less atop Mt. Everest than at sea level? Defend your answer.

    asked by Anonymous
  17. Math

    Tom drives 24 miles north to Jamesville. He then continues 35 miles to Karisville, 16 miles to Louistown, and 18 miles to May City. How far is May City from Jamesville?

    asked by Ashley
  18. Math

    Convert each of the following repeating decimals to form, where a, b are integers and b „j 0 a) 0.4 with line on the four b) 1.396 with line on the six

    asked by Anonymous
  19. chemistry

    what mass of solid AgBr is produced when 100.0 mL of 0.150 M AgNO3 is added to 20.0mL of 1.00 MNaBr? i keep getting the answer 3.75 g however when i checked in the back of the book it gives me 2.82 g.. can you please explain the universal steps for me

    asked by Crickett
  20. algebra

    The total sales made by a salesperson was $25,000 after 3 months and $68,000 after 23 months. Using an equation for the line whose graph depicts this data, predict the total sales after 40 months

    asked by allice
  21. Science

    In an experiment, 200 g of aluminum at 100degrees celsius is mixed with 50.0g of water at 20.degrees celsius, with the mixture thermally isolated.(a)What is the equilibrium temperature?What are the entropy changes of(b)the aluminum,(c)the water,and(d)the

    asked by lungi
  22. Physics - Planetary Motion

    The planet Neptune has an orbital radiu around the sun of about 4.50 * 10^12m. What are its period and its orbital speed?

    asked by Shaila
  23. math

    14m^2n - 6m^2n = 14-6=8 8m^2n

    asked by kamleen
  24. Chemistry

    How can i calculate the concentration of each ions remaining in the solution after precipitation is complete? ok heres the full question:: 2KOH + Mg(NO3)2 -------------> 2KNO3 + Mg(OH)2 a 100.0 mL aliquot of 0.200 M aqueous potassium hydroxide is mixed

    asked by Crickett
  25. economics

    (Growth and the PPF) Use the production possibilities frontier (PPF) to demonstrate economic growth. a. With consumption goods on one axis and capital goods on the other, show how the combination of goods selected this period effects the PPF in the next

    asked by Gary
  26. math

    write two equations that prove the associative property is not true for the subtraction

    asked by trevor
  27. Home Inspection

    which of thw following statements are false? A. Technical knowledge of home inspection is far more important than communication skills B.After completion of the home inspection course it's necessary to gain field experience by inspecting homes with an

    asked by Gilley
  28. math

    Simplify 2 3/18+5 3/12- 4 2/4= a)2 11/12 b)7 1/12 c)7 1/3 d)3 1/1 IS d correct ?THANK YOU:))))

    asked by vedrana
  29. math,chemistry

    How much water should be added to 1 liter of 0.12N HCl to prepare exactly 0.1N HCl?

    asked by jc
  30. chemistry,math

    One liter of approximetely 0.25N HNO3 has been prepared. Upon titration it was found that 5.0 ml of the acid required 11.0 ml of 0.10N NaOH for neutrality. How much concetrated HNO3 at 15.8N must be added to one liter to make it exactly 0.25N?

    asked by jc
  31. AED 201

    What is one principle from the INTASC Principles that you feel you must improve the most to be effective in the education profession? What existing professional development programs might you pursue to address the need to improve in this area? I have

    asked by Jessica Fuentes
  32. Chemisty (Sig Figs)

    79.7 + 890.43 - 23 = 9.5 e2 its wrong and I am suppose to correct it.

    asked by Hannah
  33. Math

    What would be the correct answer to this question? How do you find out the unknown factor in a multiplication problem?

    asked by sue
  34. chemistry A.P.

    write an expression for the quantity 506 00 in which it is clear that all zeros are significant

    asked by Cat
  35. Math

    A woman sells 18 containers of milk a day. Each container holds 22 quarts and a quart of milk weighs 1 1/2 pounds. If each of the cows give 25 pounds of milk a day, then at least how many cows must she have?

    asked by Hannah
  36. 5th grade math

    what number is 10,000 less than 337,676 in number sense?

    asked by heather
  37. 3rd grade

    What is the Predicate of a Sentence

    asked by Jennifer
  38. chemistry

    Assuming that there is an adequate supply of phosphorus atoms, how many P2O5 molecules can be made from 20 molecules of O2 ?

    asked by Anonymous
  39. english

    Please can anyone help me understand how metaphor is being used in the poem, "Tableau".

    asked by bindiya farswani
  40. math

    From a base elevation of 6300 ft. a mountain peak rises to a summit elvation of 14366 ft. over a horizontal distance of 15844 ft. Find the grade of the peak. The grade of the peak is ?%I do not even know where to begin with this. Does the 6300 ft.get

    asked by barb
  41. Maath

    Solve the equation for the indicated variable. 4x-3a-(10x+7a)=0 solve for x

    asked by Courtney
  42. Math

    A boy started on a trip across a lake by motorboat. After he had traveled 15km, the motor failed and he had to use a banca for the remaining 6 km to his destination. His average speed by motor was 4kph faster than his average speed while rowing. If the

    asked by kay
  43. Maath

    Solve the equation for the indicated variable. 5(4r-3c)-2(7r-9c)=0 solve for r

    asked by Courtney
  44. math

    find the slope if any: x+8y=16 x+0=16 x=16 0 +8y=16 8y=16 8y/8=16/8 y=2 this is the part that loses me: 0-2=-2 16-0=16 -2/16=-1/8 is this correct? If not can you help me?

    asked by barb
  45. spanish

    Caundo estas muy cansado por las mananas, que haces?

    asked by courtney
  46. Psychology

    Basic arthmetic is not an easy task for Jeanne. In fact, she has to work hard at understanding mathematical concepts. She finds it hard to believe that basic math skills are: A) present in all species B) A natural inclination, because they relate to

    asked by Rina
  47. 6th grade

    what assumptions do different groups have about power,authority,governance,and law?

    asked by melea
  48. psychology

    Parents can help their children acquire language by: a) reading and talking with them b) correcting every grammatical mistake c)placing them in front of a computer d) eating foods rich in vitamin A Am confused between b and c but i am leaning more towards

    asked by Rina
  49. Chemisty (Sig Figs)

    this is my last question for the whole assigment and im soo glad!!! (9465 + 45 - 9.9) 8.1 X 10^6 i got 76950.e6 it said it was half right and said check your number of sig figs

    asked by Hannah
  50. math

    how do you find the domain of f if f(x)= (2x-3)/(4x+5) Thank you

    asked by Sydney
  51. U.S. History

    What made the southern colonies economy possible?

    asked by Rebecca
  52. math

    how do you sketch a line with these characteristics: m>0 and b

    asked by valerie
  53. math

    why it is not possible for a right triangle to have the following three sides: 12 feet, 18 feet, and 14 feet. I need help because I am confuse. Thanks in advance.

    asked by jessica
  54. math

    How much more money would I have if I invested $14,000.00 for 8 years at 6.4% in an account that compounded annually rather than in an account that just earned simple interest? Why is this?

    asked by jessica
  55. math

    how do you find all the intercepts from these functions: 1. f(x)= (2/3)^x 2. f(x)= ln(x)

    asked by Gaby
  56. math

    It took a faster runner 10 sec. longer to run a distance of 1500 m than it took a slower runner to run a distance of 1000 m.If the rate of the faster runner was 5 m/sec more than the rate of the slower runner,what was rate of each?

    asked by jack
  57. Psychology

    Discuss the prevalence and effects of Foetal Alcohol Syndrome (FAS) in South Africa with reference to either Erikson’s theory of socio-emotional development or Piaget’s theory of cognitive development. Identify at least one risk to normal

    asked by Cathy
  58. MATH

    When x is 0 for the equation y=10/x, y is obviously 0. How can i explain why this happens in words? and i know that division is finding how many times one number is contained in another. Is it 10 goes into 0, 0 times or 0 goes into 10, 10 times?

    asked by Marianne
  59. place values in math

    i need to see how the place value chart goes from one to one billion

    asked by Alize
  60. st paul (math college algebra)

    rational expessions 7/3-8/12x-8

    asked by love
  61. psychology

    evolution has installed tendencies in our selection of a mate. Two of the strongest predictors in human mate selection today are: a) wealth and attractive b) attractiveness and youth c) similarity and proximity d) the best genetics and submission i chose A

    asked by Rina
  62. Physics - Geostationary Satellite

    Why must a geostationary satellite orbit over the equator?

    asked by Shaila
  63. Physcis - Planets

    How could you discover a planet without seeing it with a telescope?

    asked by Shaila
  64. math

    how would i construct a truth table for ~q then p (or arrow p)

    asked by erica
  65. math

    3x + 2y + 16x^3z + 6y = ANSWER: 19x + 8y + 3z

    asked by kamleen
  66. math

    how would i construct a truth table for (p and ~q) double arrow q (sorry inexperienced with the symbols and keyboard shortcuts).

    asked by erica
  67. math

    14m^2 n^3 + 6 m^3 n^3 3m^2 n^3 = ANSWER: 23m^6 n^9

    asked by kamleen
  68. english phonetics

    Hello I was wondering if my answers for my phonetics assignment were correct... Articulatory - deal with manner and place of articulation of sounds pronunciation problem - the student pronounces "pale" instead of "fail" MANNER AND PLACE OF ARTICULATION?

    asked by Jess
  69. algebra

    if you went 10000 meters in 25 min what is the average speed

    asked by charles
  70. math

    5p^2t x 3p^3t = 5x3=15 ANSWER: 15p^2t

    asked by kamleen
  71. physics

    A ladder 8.65 m long leans against the side of a building. If the ladder is inclined at an angle of 63.0° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?

    asked by Kayla
  72. math

    3x + 4y = -2 x-6y = -8 3 x -6 + 4 x 1 = -2 -2 - 6 x 1 = -8

    asked by kamleen
  73. english

    What is the figurative language for this phrase? " I want a lodge that is round like the sun and the path of the stars. I want a lodge that is like the good things that have no end."

    asked by Taylor
  74. Physics - frames of reference

    A car turns off the highway onto a curved exit ramp. a) What type of motion does the passangers' fram of reference experience relative to the ground? b) Explain why the passangers feel a force to the right as the car turns. c) How would an observer on an

    asked by Shaila
  75. algebra

    if you went 10000 meters in 25 min what is the average speed

    asked by charles
  76. physics - newtons 3rd law

    According to Newton's third law, for every action force there is a reacgtion force, then how can a team win a tug of war contest

    asked by Shaila
  77. physics - uniform circular motion

    Explain why the kinematics equations which describe the motion of the object that has constant acceleration cannot be applied to uniform circular motion.

    asked by Shaila
  78. psychology

    sara overhears her 21 year old son, joe, telling his friends on the phone that he wants to have sex with two girls he just met at the mall. joe's desire: a) expresses the male tendency to commit to a relationship b) is an example of male nurturance

    asked by Rina
  79. health psychology

    hi. I want to know how health psychology help me to understand myself better?

    asked by xhajix
  80. history

    who was samuel jackson

    asked by history
  81. math

    is this anwer correct 9a^2b + 3c + 2a^2b + 5c = ANSWER : 11a^2 + 8c^2

    asked by kamleen
  82. math

    3x + 2y + 16x^3z + 6y = ANSWER: 19x + 8y + 3z

    asked by kamleen
  83. math

    14m^2 n^3 + 6 m^3 n^3 3m^2 n^3 = ANSWER: 23m^6 n^9

    asked by kamleen
  84. math

    14m^2 n^3 + 6 m^3 n^3 + 3m^2 n^3 =

    asked by kamleen
  85. math

    (4D^2 + 7e^3 + 12f) + (3d^2 + 6e^3 + 2f) ANSWER:7d^2 + 13e^3 + 14f

    asked by kamleen
  86. math

    tell of each is greater than, less than, equal to 1,000. 8 boxes of 1000 counters.

    asked by nicole
  87. psychology

    Peter and Maria are adopting a child whose biological parents have low IQs. They want to know if this child, too is likely to have a low IQ? Which one of the following is the best response to their question? a) While IQ is heritable at least in part,

    asked by Rina
  88. math

    5p^2t x 3p^3t = 5x3=15 ANSWER: 15p^2t

    asked by kamleen
  89. math

    4x-2=10 4 x 2 - 2 =10 B=10

    asked by kamleen
  90. math

    find the value of the variables 5y+8=21

    asked by robert
  91. math

    3x + 4y = -2 x-6y = -8 3 x -6 + 4 x 1 = -2 -2 - 6 x 1 = -8

    asked by kamleen
  92. MATH

    find the cicumference of a circle a if its radius is 3mm c= 2 pi r c= 2 pi 3 3 x 2 = 6 Answer 6 pi mm

    asked by kamleen
  93. geology

    Granite comprising Stone Mountain crystallized from magma tens of kilometers within the Earth, but uplift and erosion has since laid this pluton bare. Assuming that erosion has only slightly modified the original shape of the more durable granite body,

    asked by Anonymous
  94. math

    The unpaid balance of Dave's credit card is $295, and the finance charge is 4%; what is the new balance of the credit card including Dave's additional purchase of $75? A) $382.80 B) $381.80 C) $ 306.80 D)$ 370 IS A?THANK YOU:)))

    asked by vedrana
  95. Phisic

    A driver runs to the south at 20 m / s for 3 min, then turns west and runs to 25 m / s for 2 min, and finally turns to the northwest at 30 ni / s for I min. Find in this movement, 6 min, (a) the displacement vector the driver, (b) the speed climb and the

    asked by EXCEL
  96. History

    Imagine yourself to be a woman belonging to the third estate and you are also an active member of the society of revolutionary and republican women.Describe in about 250 words your aims activities social life etc

    asked by Moulshree
  97. Genes

    Genetics and what we inherit from our biological parents play a significant role in our intelligence level. In fact, researcher have found that: a) adotpted children are more similar in IQ to their adoptive parents than to their birth parents b) identical

    asked by Rina
  98. english

    i need a story to write and i am in 6 th grade so can you tell me a story that was never tould or you made up but it has to be 2 pages long.

    asked by ashley
  99. Science

    By throwing a ball at an angle of 50 degrees, a girl can throw it a maximum horizontal distance of R = 38 m on a level field. (a) How far can she throw the same ball vertically upward? Assume that her muscles give the ball the same speed in each case. (b)

    asked by Heather
  100. math

    Select what you consider to be the most appropriate form for displaying the data. For each set, develop and appropriately label a graph. Then write a short paragraph jusifying your selection. STRESS UNITS of VARIOUS LIFE EXPERIENCES EXPERIENCE: STRESS

    asked by Sarah
  101. 7th grade social studies

    in the feudal system of Europe, lords owed their loyalty to the ???

    asked by tim
  102. social studies

    profits from trade helped strong ??? develope in east africa

    asked by tim
  103. physics

    How is it that ships made largely of steel can float when the density of steel is much higher than the density of water? Why is it possible to make oil tankers much larger than other ships?

    asked by Anonymous
  104. english

    the site that you gave me did not work i need a story plaease i am crying right now and the story is due tommorow

    asked by ashley
  105. home inspection

    which of the following statements is true? A.most home inspection requests come from real estate professionals B.more home inspections are performed for relocation companies than for any other type of client C.the law requires a home inspection prior to

    asked by sib
  106. Chem

    Why does the reaction of (Z)-butenedioic acid (fumaric acid) with 1,3-cyclopentadiene give only one product? I don't know where to start. Thanks.

    asked by Rob
  107. math/chem

    it is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g/metric ton. a metric ton is 1000kg. at this concentration, what mass of uranium is present in 1.0 mg of earth's crust?

    asked by Joe
  108. english

    i am crying because i need a story please give me a story and it has to be 2 pages long but the site that mrs.sue or who ever gave me it did not work

    asked by savvanah
  109. Science

    I am supposed to write a brief paragraph after watching a certain show (which I did), but in it, I am supposed to include if I found the show interesting, what I learned that fascinated me the most, and what program I would create for the series. How can I

    asked by scienceperson
  110. Cost Accounting

    Please somebody can help with the steps of this problem: Thank you (Comprehensive) Construction Company uses a job order costing system. In May 2008, company made a $1,650,000 bid to build a pedestrian overpass over the beach highway in Gulfport,

    asked by Josephine
  111. 3rd grade

    I do I find the sum of a digit?

    asked by Ines
  112. Sociology

    Western companies often impose western culture on the country in which the business is launched. Locate an article that contains a similar situation as Wal-Mart and summarize the findings. What is your analysis of the situation? How could this have been

    asked by Jerimiah Ferriman
  113. Math

    A person exercises for a total of 25 minutes. Of the 25, 20 minutes is at Level 2. Of the 25, 5 minutes is at Level 3 What is the average level for the 25 minutes? Provision of a formula for future problems like this will be appriciated.

    asked by Ignatz
  114. 6th grade English

    the shiny red car and the bicycle. I have to tell whether the sentence part can be used as a subject or a predicate then use the part in a sentence.

    asked by Jake
  115. chemistry

    How can i calculate the concentration of each ions remaining in the solution after precipitation is complete? ok heres the full question:: 2KOH + Mg(NO3)2 -------------> 2KNO3 + Mg(OH)2 a 100.0 mL aliquot of 0.200 M aqueous potassium hydroxide is mixed

    asked by Crickett
  116. Graduation

    Is graduation transition a graduation requirement for which a student receives four credits but not a formal percentage?

    asked by Anonymous
  117. english 105

    there should be commas around "however" in the following sentence " Dewayne had planned to take the last flight out to chicargo It was cancelled, however, because of bad weather.”

    asked by Lucy
  118. Art

    Does anyone know how I can make a 3-D poster?Thanks

    asked by Shadow
  119. 11th grade

    how much space does 150 g of mercury occupy

    asked by barbie
  120. economics

    18. (Shifts in the PPF) Terrorist attacks foster instability and may affect productivity over the short and long term. Do you think the September 11, 2001, terrorist attacks on the World Trade Center and the Pentagon affected short- or long term

    asked by Gary
  121. math

    if i know the domain of an equation is any real number except 3/7 how can i express it in interval notation? Thanks!

    asked by leslie
  122. 4th grade

    explain how you can find the difference 120-70 using mental math. then name the difference

    asked by blaine
  123. math

    7v-10 given that -9v-9=9 simplify the answer. I do not understand the question, can someone help pls.

    asked by Peggy
  124. MATH!

    4 SQRT(2x-3) < 12 please show how you find this! thanks!

    asked by confoosed
  125. math

    what is the domain for f(x)= 1 / (x^3-4x)? Thanks!

    asked by emi
  126. PreCalc

    Rebecca and Tom Payton have decided to buy a home that costs $200,000. The Paytons can put down 20% of the home's price. They have applied for a 15-year, 9% FRM to finance the balance. They Paytons have a combined gross annual income of $70,000. How much

    asked by Anonymous
  127. math

    explain how you can find the sum 25+59 without using pencil and paper or a calculator. then find the sum

    asked by trevor
  128. Geometry

    A wheel with a radius of 13 rolls along level ground and makes 4 1/2 revolutions per second. Assuming the circumference to be 3.1416 times the diameter, how far does the wheel travel in 8 seconds?

    asked by Anna
  129. 10th grade

    I need help with this problem. (b+7)(b+1) .

    asked by Si
  130. sig figs

    each of the following were suppose to be rounded to two sig figs. mark then correct or incorrect. if incorrect state the correct answer 1) 1.249 103 to 1.3 103 i know its wrong but i don't know the correct answer 2)7.999 102 to 80 its wrong and i thought

    asked by Sara p.
  131. math

    what's the expression for 6p-16 if p=3?

    asked by katie
  132. Math

    If a cubic foot of water weighs approximately 62.5 pounds, find the weight of the water in a swimming pool which is 16 yards long and 12 yards wide with water to a depth of 7 feet. Answer to the nearest ton.

    asked by Jon
  133. English

    1. How about wearing something bright? 2. How about wearing bright color? 3. How about wearing brignt colors? 4. How about wearing a bright-color shirt? (Are they all grammatical? What other expressions can we use?)

    asked by rfvv

    I HAD TO CREATE A STORY CAN UP CHECK AND HELP ME WITH ANY GRAMMAR ERRORS. Once upon a time there was a girl by the name of Lexi that was so excited about starting school. Lexi has always dream of what it would be like, when she begin middle school. Lexi

    asked by TEE
  135. Books

    Homework Help!!! (Books)? I have a homework assignment and I really need help. I'll be very thankful and pleased if anyone can help. Compare the Adventures of Huckleberry Finn to The Glass Castle mainly the characters and the challenges they face through

    asked by Ethan
  136. English

    1. Sometimes I'm sad. 2. I am sometimes sad. 3. I am sad sometimes. 4. Sometimes I feel sad. 5. I sometimes feel sad. 6. I feel sad sometimes. (Are they all grammatical?)

    asked by rfvv
  137. algebra

    The perimeter of a rectangle is 128m the length is 4m more than twice the width

    asked by Jeff
  138. math

    What does a ~ line above a = sign mean in Geomentry,

    asked by Luke
  139. Algebra

    2{3x-(x-3)}=3(x-3) Can you please show me the steps on how to do this.

    asked by Melonie
  140. algebra

    5/4x + 1/8x = 3/8 + x = X =

    asked by Bubba
  141. geometry

    The length of a certain rectangle is 4 meters more than three times its width. If the perimeter of the rectangle is 56 meters, then the width of the rectangle is

    asked by Anonymous
  142. Math

    $100 is deposited in a savings account that pays 4% interest compounded annually. A) how much is in the account after 5 years? B) use logarithms to determine how many years it will take for the account to grow to $1000. Could someone show me how to do this

    asked by Shannon
  143. math

    Substract. 10 3/5- 2 10/11 a)8 38/55 b)7 c)743/55 d)7 38/55 IS A RIGHT ANSWER?THANK YOU:))))

    asked by vedrana
  144. Statistics

    In a study to estimate a population mean, i start with a sample size 10 and calculate the 95% confidence interval. Suppose i am not satisfied with the size of the confidence interval and want to reduce it by half. Give an estimate of sample size that i

    asked by Zodra
  145. algebra

    2x + 3y is less than or equal to 6 solve b=6c for c The length of a rectangle is fixed at 15cm. What widths will make the perimeter greater than 80 cm? solve the compound inequality: 6>-5x + 5 or 10 is less than or equal to -5x+4

    asked by Bubba
  146. Pre-Cal

    What is the domain, range, zeros, symmetry, and is it even/odd of these functions? (how can you tell, i don't remember how you get all these, refresher please) y= 1/x y=[x] y=sq rt. of x^2 -4 y=sin x y=cos x y=tan x

    asked by Amanda
  147. math,science,lab

    One liter of approximetely 0.25N HNO3 has been prepared. Upon titration it was found that 5.0 ml of the acid required 11.0 ml of 0.10N NaOH for neutrality. How much concetrated HNO3 at 15.8N must be added to one liter to make it exactly 0.25N?

    asked by jc