Questions Asked on
October 23, 2013

  1. physics

    A dockworker loading crates on a ship finds that a 19-kg crate, initially at rest on a horizontal surface, requires a 83-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 53 N is required to keep it moving

    asked by Anonymous
  2. Physics

    A 3.00-kg block starts from rest at the top of a 25.5° incline and slides 2.00 m down the incline in 1.75 s. (a) Find the acceleration of the block. m/s2 (b) Find the coefficient of kinetic friction between the block and the incline. (c) Find the

    asked by Anonymous
  3. chemistry

    Iron reacts with chlorine to form iron(iii)chloride. A)How many chlorines react with 1.86g of iron? B)What mass of iron(iii)chloride is produced?

    asked by Ava
  4. sicence

    Which example describes a method of relative dating? A. examining historical records to determine when a volcano erupted B. using radioactive isotopes to calculate the age of a rock C. measuring the depth of tree bark D. using fossils to determine the

    asked by megan
  5. Calculus

    The population in certain country is growing at the rate of 7 % a year . If the population in the year 1995 was 190 million, (a)determine an exponential expression representing the population as a function of the year. (b) What will the population be in

    asked by Migena
  6. Math

    If my mid-term is worth 15%, and my grade is 100% right now. If I get 0 on the exam, my grade would be 85% right?

    asked by Thom
  7. PHYSICS

    An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. (a) If a 16.0 V potential difference is applied to these plates, calculate the electric field between the plates. kV/m (b) What is

    asked by smita
  8. Chemistry

    What would happen to the values of the pigments if we were to increase the relative concentration of acetonein the developing solvent?

    asked by Kieu
  9. chemistry

    What is the change in enthalpy for an isothermal, isentropic compression of an ideal gas from 2 atm to 12 atm?

    asked by Carl
  10. engineering

    What is the change in enthalpy for an isothermal, isentropic compression of an ideal gas from 2 atm to 12 atm?

    asked by Carl
  11. math

    A company's weekly profit, in riyals, is modeled by the function P(u)=-0.032u^2+46u-3000. where u is the number of units sold each week. a) the maximum weekly profit. Answer: 13531.25 riyals b) the loss for week's holiday period, where no units are sold

    asked by Lucas
  12. physics

    A block having mass 90 kg.just contact the top of the free end of spring. (1) find the maximum deflection of spring if the block is released instantaneously with zero initial velocity. (2) if the block is very gradually lowered on the spring.

    asked by Sarsi
  13. Physics

    A block having mass 90 kg.just contact the top of the free end of spring. (1) find the maximum deflection of spring if the block is released instantaneously with zero initial velocity. (2) if the block is very gradually lowered on the spring. The stiffness

    asked by Sarsi
  14. Physics

    A particle of mass m moves in a x-y plane. the coordinates of the particle at any instant are given by x=acos(wt) y = bsin(wt). where a,b,w, are constants. determine angular momentum ofthe particle with respect to the origin of the coordinate system.

    asked by Sarsi
  15. english

    Please help me. I wanna make sure if all corrects this. Thanks. Some people are so (1)ominous to living near a nuclear plant that they want the plant’s license to be (2)nullify. They say the plant infringes on every homeowner’s right to safety. Shannon

    asked by Franny
  16. English ---- check grammar---

    When I was fifteen years old, I left the Vietnam to begin a new life with my family in the United States. But my young heart has never stopped yearning for that one day when I would go back home. One peculiar thing about Vietnamese is that they associate

    asked by John
  17. biology

    Is carbonic acid (H2CO3) organic or inorganic?

    asked by Mengistu
  18. biology

    Is carbonic acid (H2CO3) organic or inorganic molecule?

    asked by Mengistu
  19. English

    It is too late to cancel my order. (What does 'it' refer to in the sentence? Is 'it' a false subject or the impersonal pronoun referring to 'the time'?)

    asked by rfvv
  20. physics

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs

    asked by gift
  21. physics

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs

    asked by gift
  22. science

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs

    asked by gift
  23. Math

    A satellite launch rocket has a cylindrical fuel tank. The fuel tank can hold V cubic meters of fuel. If the tank measures d meters across, what is the height of the tank in meters?

    asked by Leen
  24. Biology

    PLEASE CONSIDER EACH OF THE FOLLOWING CHANGES SEPARATELY. Be sure to enter the sequence using the 3-letter abbreviations (for example, Ala-Gly-Ser), where the left most amino acid of your answer represents the first amino acid of the polypeptide. Another

    asked by youlifex
  25. math

    need help to solve this problem: 21E − 7 = 0 what is e?

    asked by Anonymous
  26. math

    Consider the sets. A = {distinct letters in the word keep} B = {13} C = {k, e, p} D = {6 + 1} E = {seven} F = {7} (a) What is the cardinality of each set?

    asked by Anonymous
  27. Algerbra

    These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of

    asked by Morgan
  28. algebra

    it takes an HP laserjet 1300 printer 10 minute longer to complete a 600 page print job by itself than it takes an HP laserjet 2420 to complete the same job itself. Together the two printers can complete the job in 12 min. How long does it takes for each

    asked by shae
  29. Physics

    A car is rounding an unbanked circular turn with a speed of v = 35 m/s. The radius of the turn is r = 1500 m. What is the magnitude ac of the car’s centripetal acceleration?

    asked by Alhaya
  30. HCA/220

    I need help with a discussion question due in week 8. You work in a training and development department of a medical facility. You are asked to develop a training manual for a new employee with no medical terminology background. The new hire will work in

    asked by chrissy
  31. Algebra

    Mary’s yard is a mess. She needs to hire someone to prune her trees and shrubs. A landscaping service she calls quotes her a price of $15 consultation fee plus $8 an hour for the actual work. Mary’s neighbor has offered to help her out. She doesn’t

    asked by Faith
  32. science

    What keeps the very dense gas at the core of the Sun from becoming a solid?

    asked by john
  33. Physics

    At 1:00 p.m. a car, traveling at a constant velocity of 80 km/h toward the west, is 31 km to the west of our school.

    asked by Sammi
  34. Math

    Part 1: Answer the following question: In a survey of students about favorite sports, the results include 22 who like tennis, 25 who like football, 9 who like tennis and football, 17 who like tennis and baseball, 20 who like football and baseball, 6 who

    asked by Anonymous
  35. Math

    Assume that if students buy more than $250 of art supplies in one visit, they may put the charge on a student account with terms of 2/10 EOM. If a student makes the purchase on September 16, on what day does the 2% discount expire? If the purchase is made

    asked by Litta
  36. science

    Consider a double star system under the influence of the gravitational force between the stars. Star 1 has mass m1 = 1.72 × 1031 kg and Star 2 has mass m2 = 1.60 × 1031 kg. Assume that each star undergoes uniform circular motion about the center of mass

    asked by Anonymous
  37. science

    How would you write a method on a hypotheses relating to meaning in life and both physical and psychological well-being scores.

    asked by Eid2013
  38. engineering

    A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20oC to 1000 oC. If the starting pressure was 1 atmosphere, what pressure is present at the elevated temperature assuming the compartment remains closed?

    asked by Steve
  39. physics

    A truck with a mass of 1.5 x 103 kg accelerates to a speed of 18.0 m/s in 12.0 s from a dead stop. Assume that the force of resistance is a constant 400.0 N during the acceleration. What is the average power developed by the truck’s engine?

    asked by alex
  40. world geography

    The largest mass migration in human history has taken place in china. why ?

    asked by Marina
  41. World History

    Which best describes the mathematics of the Mesopotamians? 1. It did not influence that of other places. 2.It was based on the number six. 3. It was learned from the egyptians. 4.It did not have any practical use.

    asked by Bilbo
  42. Maths

    DVDS 4 U SALE Price label more than £8-take 15% off Price label less than £8-take 10% off a)ivy buys 5 dvds with a price label of £6. work out how much she pays in the sale b)kurt buys 2 dvds each with a price label of £4 and 7 dvds each with a price

    asked by HS
  43. alg

    A clothing company uses the expressions that follow to estimate revenue and expenses based on the production of x lots of clothes: Revenue: Expenses: The ratio of revenue to expenses is represented by the rational expression that follows: A. Factor the

    asked by hannah
  44. algebra 2

    On a second report that you reviewed, the team simplified the expression to 4. Show how to simplify the rational expression correctly. Explain your steps so that the team understands how to simplify an expression similar to this in future experiments.

    asked by hannah
  45. Math

    A survey finds that 85% of the people asked use the local bus. 35.3% of those who use the bus use it at least once a week. 240 people took part in the survey. (a) Work out how many people say they use the bus once a week. (b) What percentage of the people

    asked by HS
  46. Math

    Last year 80% of a car service bill was for labour. The rest was for parts. This year the labour costs increased by 9%. The cost for parts increased by 12%. Work out the percentage increase in the total car service bill for this year.

    asked by HS
  47. math

    A garden centre buys plants to sell. It sells them at a profit of 28%. A rose bush is sold for £3.40 Work out the price that the garden centre paid for the rose bush.

    asked by HS
  48. math

    Jon buys £4000 of shares. In the first year the shares increase in value by 8%. In the next two years the shares decrease in value by 5% each year. Work out the value of the shares at the end of the three years.

    asked by HS
  49. Math

    A house loses 18% of its value. Its new value is £129 000. Work out the earlier value of the house. Give your answer to a suitable degree of accuracy.

    asked by HS
  50. World History

    Which best describes the earliest form of writing? 1.It uses wedge-shaped characters. 2.It is called hieroglyphics. 3.It was taught to all Mesopotamians. 4.It was created in the Indus Valley. I would say either number 2 or 3

    asked by Bilbo
  51. HELP!! Chemistry

    1. Calculate the density of a material that has a mass of 52.497 g and a volume of 18.5 cm3. 2. A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the

    asked by _Unknown
  52. biology

    A sheep with human genes spliced into it to produce human antibodies is an example of a(n)

    asked by hannah
  53. biology

    4. Using sunscreen and consuming energy drinks involve _____________________. A. using biological information to make informed decisions B. risks to using biotechnology C. using genomics to make informed decisions D. all of the above

    asked by hannah
  54. MY QUESTIONS BELOW ARE DIFFERENT!!

    PLEASE HELP!!!! they are all different questions not the same!!!!

    asked by HS
  55. physics

    How long must an ideal pendulum (or the radius of an air track) be such that one swing (half period) lasts very near one second? Use = 9.81 m/s How long must an ideal pendulum be such that one swing (half period) lasts very near one second when it is

    asked by eliot
  56. math

    If the average density of the dining area is 10kg/m^2 and the if the mass is 1000kg how much space does the dining area take up?

    asked by johnmeisha
  57. physics

    1. A snowmobile, with a mass of 530 kg, applied a force of 410 N backwards on the snow. a. What force is responsible for the snowmobile’s resulting forward motion? (Hint: Think action–reaction force pairs.) b. If the force of friction on the snowmobile

    asked by iyzi
  58. math

    Using These Numerals 1,9,9,6 in the same order how can you make the numbers 73 76 77

    asked by sam
  59. physics

    A satellite with mass 6.00*10^3 is in the equatorial plane in a circular orbit. The planet's mass = 6.59 *10^25 and a day of length is 1.6 earth days. How far from the center (in m) of the planet is the satellite? What is the escape velocity (km?sec) from

    asked by ss01
  60. math

    rename the number 600,000 ------ten thousand

    asked by ezekiel
  61. Physical science

    A ramp is 2.8 meters long and 1.2 meters high. How much power is needed to push a box up the ramp in 4.6 seconds with a force of 96 N?

    asked by Bob cx
  62. history

    Which of the following was true of the Judiciary Act of 1801? A. It packed the Supreme Court with Democratic Republicans. B. It was opposed by the Federalists. C. It expanded the federal court system. D. It reduced the power of the federal courts. I put a

    asked by All
  63. Biology 101

    1. Which of the following statements is incorrect about homologous chromosomes? a. Homologous chromosomes are similar but not identical b. Homologous chromosomes have the same size and function c. Homologous chromosomes contain genes for the same kind of

    asked by Phillip
  64. SCIENCE

    How is ionising radiation affects the cell, DNA and can lead to tumours/leukaemia? nothing to complicated or technical like Wikipedia or anything that seems like that please. I just a few point for which I can then compile in a decent paragraph thanks in

    asked by HS.help
  65. algebra 2

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by hannah
  66. algerbra 2

    B. The rational expression is not defined for any values of 20^2-180/4x^2+36+ 72 for which the denominator equals zero. Find the value(s) of for which the denominator equals zero.

    asked by hannah
  67. Maths

    If the vertex of the parabola y=x^2-2ax+2a^2 is on the line y=24x+25 what is the value of a (positive number)

    asked by CHRIS
  68. Algebra 2

    Hey guys i have a little assignment for you guys to do. My students have had a tough time doing this and i wanted to see if any of you can get this right.The first person to get this correct i will help them with any math related problems for a week. Good

    asked by Mrs.Clinton
  69. Maths

    Given a rectangular object with dimensions 2cm by 22cm, we want to increase the length of the smaller dimension and decrease the length of the larger dimension by Xcm each. If the the diagonal has to be kept less than (sqrt360)cm in length, the range of X

    asked by CHRIS
  70. World History

    City-States Essay Assignment In what ways were the Indus Valley people an advanced civilization? In what ways did their civilization compare to an advanced modern civilization today? The Indus people were always a step ahead in a lot of their achievements.

    asked by _Unknown
  71. science

    How is ionising radiation affects the cell, DNA and can lead to tumours/leukaemia? nothing to complicated or technical like Wikipedia or anything that seems like that please. I just a few point for which I can then compile in a decent paragraph thanks in

    asked by HS.help
  72. Chemistry

    Is a more negative corrosion potential more susceptible to corrosion or a less negative corrosion potential?

    asked by John
  73. math

    From experience, the manager of Kramer's Book Mart knows that 33% of the people who are browsing in the store will make a purchase. What is the probability that among 9 people who are browsing in the store, at least 6 will make a purchase?

    asked by Anonymous
  74. SCIENCE

    How is ionising radiation affects the cell, DNA and can lead to tumours/leukaemia? nothing to complicated or technical like Wikipedia or anything that seems like that please. I just a few point for which I can then compile in a decent paragraph thanks in

    asked by HS.help
  75. Finance

    a. If upon retirement in 20 years Simon plans to invest $400,000 in a fund that earns 5%, what is the maximum annual withdrawal he can make over the following 15 years?

    asked by Summer
  76. physics

    A spherical shell of uniform charge density σ has a circular hole cut out of it. What is the Electric Field at a radius just outside the sphere, directly over the center of the circular, cut-out hole?

    asked by manu
  77. SS

    In a region as dry as the Sahara Desert, an oasis is often the only place to find water. True False True?

    asked by Anonymous
  78. science

    How is ionising radiation affects the cell, DNA and can lead to tumours/leukaemia? nothing to complicated or technical like Wikipedia or anything that seems like that please. I just a few point for which I can then compile in a decent paragraph thanks in

    asked by HS.help
  79. cal

    Determine all values of x, (if any), at which the graph of the function has a horizontal tangent. y(x) = 6x/(x-9)^2

    asked by cal
  80. algebra

    This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

    asked by hannah
  81. Math

    Part 1: Answer the following question: In a survey of students about favorite sports, the results include 22 who like tennis, 25 who like football, 9 who like tennis and football, 17 who like tennis and baseball, 20 who like football and baseball, 6 who

    asked by Anonymous
  82. Physics

    A stick of dynamite (190 g) contains roughly 10 J of chemical energy that is transformed into mechanical energy and heat during an explosion. A 1000 kg rock in outer space is at rest with respect to a spaceship. An astronaut blows up the rock with one

    asked by askas
  83. keyboarding

    in a report what protects against printing a single line at the bottom or top of a page?

    asked by sylvia king
  84. Math

    So, one of my subjects midterm I got 71% (43 out of 60). The mid-term test was worth 25%. It is my first evaluation. How do I calculate my final mark so far? :|

    asked by Jacob
  85. TO ALL TEACHERS

    I would just like to say that your work is very much appreciated. I honestly believe that you are genuine and helpful people who bring joy to student's understanding of learning. Your voluntary work is performed at a high standard and I would personally

    asked by HS-Hanna
  86. Science

    How can weathering cause sedimentary rocks to form ?

    asked by Anabelle
  87. English

    2. Which of the following sentences contains a verb in the future tense? A. She really should begin to pack. B. Jean's daughter has begun to drive. C. They will take the dog to the park with them. D. By that time, he will have been gone for three days. I

    asked by Cassie
  88. Calculus

    Romat 421 (a fictitious substance) decays by about 1.5% every day. How much of a 80 pound sample remains after 5days?

    asked by Migena
  89. English

    Please double check my answers to make sure that I am thinking about each question correctly. Thanks. Last night, Lucy and Neil met Morey in Gramercy Park. 9. The object of the verb is A. Lucy and Neil. B. night. C. Gramercy Park. D. Morey. I picked D,

    asked by Tabitha
  90. TO ALL TURORS

    I would just like to say that your work is very much appreciated. I honestly believe that you are genuine and helpful people who bring joy to student's understanding of learning. Your voluntary work is performed at a high standard and I would personally

    asked by HS
  91. Health

    1). Summarize the effects of low self-esteem. A: The effects of low self-esteem include vulnerability to peer pressure, disrespectfulness for self and others, destructive behaviors, depression, suicide, the use of drugs and alcohol, criticalness of others,

    asked by Anonymous
  92. English

    15. In this sentence, what is the antecedent of the pronoun it? A. work B. house C. Carla D. her I answered B, because the house (noun) was replaced by the word it (pronoun, which is considered the antecedent of the pronoun. Is my thinking correct. 17.

    asked by Samantha
  93. write a summary

    on bill clinton's speech. i have In William Clinton's speech, "remarks to the Convocation of God in Christ," Bill Clinton argues for a better future for American Citizens. He continuously tries to persuade American Citizens to take action and make america

    asked by Reina B.
  94. College writing supplement edit

    I need help editing a college admission writing supplement Connecticut College is definitely my first choice, as I believe that its exemplary academic and career opportunities will not only help me develop as a student, but also as a future professional.

    asked by chhristine
  95. Math

    What does 3^4x2^3x5^2/3^2x5x2^3 equal? Using the method of sorting the bases and subtracting the exponents.

    asked by Nicole
  96. algebra

    3x^2 - 15x + 18

    asked by Anonymous
  97. algebra

    x^2 + x - 72

    asked by Anonymous
  98. math

    How do i write 4*36 in an array and find partial products.

    asked by lisa
  99. Biology

    Could someone please explain Endocytosis(phagocytosis, pinocytosis and receptor-mediated endocytosis) in simplest way? I do not understand

    asked by will
  100. Math

    find all real numbers x and y that satisfy -2x-1-2yi=4x-5i I think the first step is rewrite with constant complex on one side. -2x-2yi-4x=1-5i now I'm lost

    asked by Terri
  101. I NEED HELP I DON'T KNOW I TRYED EVERYTHING

    in the poem o captain my caption, identify all the descriptions Whitman use to compare lincoln to a ship's caption.what kind of a leader dose the speaker consider lincoln?

    asked by eduarda cardoso
  102. Calculus-Mean Value Theorem

    Find the function G(x) whose graph passes through (pi/38,-12)and has f(x) as its derivative: G(x)= I already found which is: F(x)=76(1/-19)cos(19x)+C

    asked by Sara
  103. The Crucible (English)

    Did Mary Warren purposelly give the rag doll she made to Elizabeth Proctor as a "gift" because she and Abigail planned the whole needle found in abigails abdomned thing? The marshalls spied the doll and it just seems to me that Mary and Abigail set up the

    asked by Bryce
  104. Health

    9. Kristy, a 13-year-old girl, has a resting heart rate of 67 beats per minute. Using the lower and upper limit reserve training percentages of 50 percent and 85 percent respectively, what is Kristy’s target heart rate range? 137 to 186 per minute 140 to

    asked by Charlotte
  105. Math.. Please help!

    What does 3^4x2^3x5^2/3^2x5x2^3 equal? Using the method of sorting the bases and subtracting the exponents.

    asked by Nicole
  106. math

    An adults body has 206 bones. 106 of these bones are feet, hand, wrists, and ankles. What fraction of adults's bones is in the feet, ankles, hands, and wrists? Write in simpleist form.

    asked by Anonymous
  107. 6th grade math

    Can you check these, please? Convert each of the following verbal phrases to algebraic expressions. 1.twice the number plus 16 is 18 Ans: 2x + 16 = 18 2.the quotient of a number and ten more than fourteen is eleven Ans: (10 + 14)/x = 11? or x/10 + 14 = 11?

    asked by Alex
  108. Algebra 1

    Alex can remodel a bathroom in 2 days. Abraham can remodel the same bathroom in 4 days. How long will it take them to remodel the bathroom if they work together?

    asked by Anonymous
  109. Algebra

    All real # x and y that satisfy -2x-1+2yi=4x-5i first step is place constant complex # on one side -2x+2yi-4x=1+5i -6x+2yi=1+5i now I'm lost

    asked by Terri
  110. college admissions

    I need help editing a college admission writing supplement Connecticut College is definitely my first choice, as I believe that its exemplary academic and career opportunities will not only help me develop as a student, but also as a future professional.

    asked by chhristine
  111. Counting and probability

    I have no idea on how to do this, please help! Maya is invited to a wedding. She's gets all the items (dress pants, shoes, necklaces and a scarf) she finds suitable to wear out of her closet. A) Maya has two dress pants and four blouses. how many outfits

    asked by Ashley
  112. math

    Kittens weigh about 100 grams when born and gain 7 to 15 grams per day. If a kitten weighed 100 grams at birth and gained 8 grams per day, in how many days will the kitten triple its weight?

    asked by Brittney
  113. physics

    Two billiard balls with identical masses and sliding in opposite directions have an elastic head-on collision. Before the collision, each ball has a speed of 20 cm/s. Find the speed of each billiard ball immediately after the collision.

    asked by Tejas Sardar
  114. Social study

    How did American Indians work together to meet their needs and solve problems?

    asked by Anonymous
  115. History - Social

    Overtime American Indian cultures have developed traditions that play an important role in their ways of life. How are these traditions handed down today?

    asked by Anonymous
  116. science

    An analysis for copper was performed on two pure solids. One solid was found to contain 43.0% copper; the other contained 32.0% copper. Could these solids be samples of the same copper-containing compound?

    asked by Donald
  117. Math

    Sally and Marta have the same number of postcards

    asked by Hilda
  118. Health

    Describe how respecting yourself and respecting your values can improve your self-esteem.

    asked by Anonymous
  119. Physics

    A Ferris wheel is 60 meters in diameter and rotates once every 12.5s. what is the ratio of a person's apparent weight to her real weight (a) at the top, and (b) at the bottom?

    asked by Sidney
  120. math

    Out of 32 students in a class, 5 said they ride their bikes to school. Based on these results predict how many of the 800 students in the school ride their bikes in school.

    asked by Anonymous
  121. Algebra

    Alex can remodel a bathroom in 2 days. Abraham can remodel the same bathroom in 4 days. How long will it take them to remodel the bathroom if they work together?

    asked by Anonymous
  122. Math

    Estimate. 224% of 320 Please explain! :(

    asked by Anonymous
  123. algebra 2

    how do you simplify 5-x _______ x^2-20 to = 4

    asked by hannah
  124. Algebra

    When only the cold faucet is fully turned on, a bathtub fills in 8 minutes. When only the hot faucet is turned on, the same bathtub fiills in 12 minutes. If both the cold and hot faucet are fully turned on, how long will it take to fill the bathtub?

    asked by Anonymous
  125. Algebra 1

    I'm having trouble putting these equations in standard form. PLEASE HELP ME!!! Y=12x+4 Y= -8x+-5 Y=-2x+8 Y=5x+5 Y=18x+-3

    asked by Hannah
  126. Solving Rational Equations

    When only the cold faucet is fully turned on, a bathtub fills in 8 minutes. When only the hot faucet is turned on, the same bathtub fiills in 12 minutes. If both the cold and hot faucet are fully turned on, how long will it take to fill the bathtub?

    asked by Anonymous
  127. Jonh muir

    Jen nad 6 blank CDs, but needed to buy more. She bought 2 packs of blank CDs. Each pack has 8 CDs. How many blank CDs does she have now?

    asked by Anonymous
  128. Math

    A charter fishing company buys a new boat for $224,000 and assumes that it will have a trade-in value of $115,200 after 16 years. Find a linear model for the depreciated value V of the boat t years after it was purchased.

    asked by Jess
  129. english

    i need some good sentence for the sociology. can somebody help

    asked by mythreyee
  130. Algebra

    Part 1: Answer the following question: In a survey of students about favorite sports, the results include 22 who like tennis, 25 who like football, 9 who like tennis and football, 17 who like tennis and baseball, 20 who like football and baseball, 6 who

    asked by Anonymous
  131. math

    Find last years salary if after a 3% pay raise this years salary is $35,020

    asked by ann
  132. Math - Urgent

    2/3x+1/2x=5/6+2x What does x equal? Please show all work.

    asked by Sarah
  133. John muir

    Coach Coleman has 32 softballs left from last season, but 3 are torn and can't be use. He buys 2 boxes of softballs to start the new season. Each box 24 softballs. How many good softballs does he have in all? Show your work.

    asked by Anonymous
  134. Math

    Coach Coleman is ordering hats for this year's teams. There are 6 teams. Each team has 12 players on the roster. He orders 12 more hats for the team managers. How many hats does he order in all? Show your work.

    asked by Anonymous
  135. Calculus Homework

    Find the largest region over which the function f is increasing or decreasing, for: f(x):(x-4)/(x+8) f is increasing for x=

    asked by Sara
  136. Chem

    A molecule of oxygen gas (O2 ) has a velocity of 2800 m / s. What is its de Broglie wavelength?

    asked by Anonymous
  137. Math

    Estimate 41.472

    asked by Anonymous
  138. Math

    Show how to make one addend the next tens number. Complete the new addition sentence. My son doesn't remember how to do this and I am confused? First one is 15 + 37 = 52 so it's asking the next tens would this be 10 + 42 = 52 would it always be 10? Please

    asked by Nikol
  139. Grammar

    Select the correctly punctuated sentence. 1. Thank you for asking me to meet with your patient, Wonder Woman, who came to the appointment accompanied by her husband. 2.Thank you for asking me to meet with your patient Wonder Woman who came to the

    asked by G
  140. Solving Rational Equations

    100mL of a solution contains 30 mL of acid; this is called a 30% acid solution because part 30 ---- = ---- = 0.30. whole 100 How many milliliters of acid x would need to be added to the solution to turn it into a 50% solution ? (HInt: Adding acid increases

    asked by Stacey
  141. Algebra

    100mL of a solution contains 30 mL of acid; this is called a 30% acid solution because part 30 ---- = ---- = 0.30. whole 100 How many milliliters of acid x would need to be added to the solution to turn it into a 50% solution ? (HInt: Adding acid increases

    asked by Stacey
  142. 4th grade math

    Estimate. Then record your product using partial products. 4,247 x 5 (problem 1) (problem 2) 245 x 3

    asked by Anonymous
  143. Solving Rational Equations

    Markus jogs 4 mi around a track at an average rate of r mi/h THen he cools down by walking 1 mi at a rate 3 mi/h slower. His whole workout lasts 1 h. At what rates did Markus jog and walk?

    asked by Stacey
  144. Algebra

    Markus jogs 4 mi around a track at an average rate of r mi/h THen he cools down by walking 1 mi at a rate 3 mi/h slower. His whole workout lasts 1 h. At what rates did Markus jog and walk?

    asked by Stacey
  145. Math

    What is the sum of 5/30+4/6

    asked by Anonymous
  146. History/English

    Please help me understand this Explain the transformation of jurgis character throughout the jungle. How did his morals, actions and attitude change as he experienced events during his life?

    asked by Emma
  147. math

    The CN Tower in Toronto, Canada, is the tallest free-standing structure in North America. A woman on the observation deck, 1150 ft above the ground, wants to determine the distance between two landmarks on the ground below. She observes that the angle

    asked by Anonymous
  148. Math

    Is an estimate for the percent of a number always , sometimes or never greater than the actual percent of a number. Give an example or a counter example to support your answer

    asked by Anonymous
  149. Algebra 1

    y=x+1 Domain: -2,-1,0,1,2 what is the range? Is it -1,0,1,2,3

    asked by Katie
  150. Counting/ Probability

    I don't understand this problem at all, all help is appreciate Maya is invited to a wedding. She gets all the items (dresses, blouses, dress pants, shoes, necklaces and a scarf) she finds suitable to wear out of her closet. a) Maya has two dress pants and

    asked by Lynne
  151. Algebra

    Markus jogs 4 mi around a track at an average rate of r mi/h THen he cools down by walking 1 mi at a rate 3 mi/h slower. His whole workout lasts 1 h. At what rates did Markus jog and walk?

    asked by Stacey
  152. Algebra

    Markus jogs 4 mi around a track at an average rate of r mi/h THen he cools down by walking 1 mi at a rate 3 mi/h slower. His whole workout lasts 1 h. At what rates did Markus jog and walk?

    asked by Stacey
  153. Solving Rational Equations

    Ms. Spinoni can prepare a mass-mailing of 500 letters in 10 hours. Mr. Harris can prepare a mass-mailing of 500 letters in 15 hours. How long will it take them to prepare a mass-mailing of 1000 letters if they work together? (Hint: The complete job is

    asked by Stacey
  154. Algebra

    Ms. Spinoni can prepare a mass-mailing of 500 letters in 10 hours. Mr. Harris can prepare a mass-mailing of 500 letters in 15 hours. How long will it take them to prepare a mass-mailing of 1000 letters if they work together? (Hint: The complete job is

    asked by Stacey
  155. Algebra /.-

    -4x-23=-107 Help!?!?

    asked by Abby
  156. Solving Rational Equations

    At a cafeteria, the automatic ice machine can completely fill itself in 20 minutes. During lunch time, customers can completely empty the ice machine in 30 minutes. At the start of lunch time, the ice machine is completely and it starts making ice at the

    asked by Stacey
  157. math

    What is 20 divide by 6400?

    asked by Jade
  158. Math - HELP!

    Distributive Property Expression: 6a(3a+5b - 4) Please show your work and your answer.

    asked by Mary
  159. Solving Rational Equations

    To attend a family reunion, Beth drives 100 mi from Fresno and Clara drives 220 mi from San Jose. Both women drive the same speed in miles per hour, but Clara's drive takes 2 hours longer than Beth's. Find the length of Beth's drive. a. 1 hour. b. 2.2

    asked by Stacey
  160. Algebra

    To attend a family reunion, Beth drives 100 mi from Fresno and Clara drives 220 mi from San Jose. Both women drive the same speed in miles per hour, but Clara's drive takes 2 hours longer than Beth's. Find the length of Beth's drive. a. 1 hour. b. 2.2

    asked by Stacey
  161. Math- URGENT

    find the value of x or y so that the line through the points has the given slope. (12,y) and (15,-8); slope: 2/3

    asked by John
  162. chemistry

    A microwave oven heats by radiating food with microwave radiation, which is absorbed by the food and converted to heat. Suppose an oven's radiation wavelength is 12.5 cm. A container with 200 mL of water was placed in the oven and heated. How many photons

    asked by Katie
  163. Introduction Algebra

    t^2+4z^2

    asked by Anonymous
  164. Chemistry Hess's Law

    (1) 2 Ni(s) + O2 (g) --> 2NiO(s) delta H= -479.4 kJ (2) Ni(s) + Cl2(g) --> NiCl2(s) delta H= -305.3 kJ Using equations 1 and 2 and Hess's Law, determine the amount of moles Nickel (ii) Chloride that was combusted given the following: volume = 15.45 L

    asked by Brian
  165. Math check

    Round 210, 028, 546, 555 to the nearest million 9,000,000

    asked by Gio
  166. biomechanics

    If a 100 kg adult sits on a first class lever 2.3 meters away from the axis of rotation...how far back do I need to sit (145 lbs) on the other side to balance the lever?

    asked by Anonymous
  167. chem-- delta H

    In your search for fuel to use after the reserves of gasoline dry up, you decided to analyze different compounds (2 hydrocarbons & an alcohol) by combustion. You independently combust methane (CH4), ethane (CH3CH3), and ethanol (CH3CH2OH) at 298 K and 1

    asked by Emma
  168. Punctuation Sentence

    Select the correct sentence. 1. Dr. Jones is an excellent surgeon but does not have a good bedside manner. 2. Dr. Jones is an excellent surgeon, but does not have a good bedside manner. 3. Dr. Jones, is an excellent surgeon, but does not have a good

    asked by Danny
  169. Physical Science ASAP

    1. true or false? a well-oiled machine has no friction. explain your answer. 2. True or false? Friction makes energy vanish. Explain your answer. 3. True of false? Electronic machines with no moving parts experience friction and get hot because electricity

    asked by unknown
  170. Science

    Suppose that 9 grams of a certain substance lost 17.5 calories of heat when the temperature decreased from 70 degrees Celsius to 62 degrees Celsius. What is the Cp

    asked by Wyatt
  171. Math

    Central middle school sold 50 tickets for one night at the school play. Student tickets sold for 2$ each and adult tickets sold for 3$ each. They took in 135$. How many of each type of ticket did they sell?

    asked by Ali
  172. meterology

    Saturated (cloudy) air at a temperature of 20 °C (68 °F) has a relative humidity of _________%

    asked by amber
  173. Math

    Central middle school sold 50 tickets for one night at the school play. Student tickets sold for 2$ each and adult tickets sold for 3$ each. They took in 135$. How many of each type of ticket did they sell?

    asked by Ali
  174. Math

    find the value of x or y so that the line through the points has the given slope. (12,y) and (15,-8); slope: 2/3

    asked by Emily
  175. Algebra

    Markus jogs 4 mi around a track at an average rate of r mi/h Then he cools down by walking 1 mi at a rate 3 mi/h slower. His whole workout lasts 1 hour. At what rates did Markus jog and walk?

    asked by Stacey
  176. Solving Rational Equations

    Markus jogs 4 mi around a track at an average rate of r mi/h Then he cools down by walking 1 mi at a rate 3 mi/h slower. His whole workout lasts 1 h. At what rates did Markus jog and walk?

    asked by Stacey
  177. Algebra 1

    Markus jogs 4 mi around a track at an average rate of r mi/h. Then he cools down by walking 1 mi at a rate 3 mi/h slower. His whole workout lasts 1 h. At what rates did Markus jog and walk?

    asked by Stacey
  178. economics

    Consider the following production possibilities table: Option Y X A 0 100 B 80 80 C 120 50 D 140 10 a)Provide a measure of the approximate marginal opportunity cost of an additional unit of X for each interval. Is the law of increasing cost satisfied?

    asked by Cathy
  179. physics

    suppose the diver vaults off the springboard, leaving it with an initial speed of 3.50 m/s upward. use energy conservation to find his spped when he strikes the water.

    asked by tony
  180. Algebra 1 Math

    an insect flies 20ft in 1 s. how fast does the insect fly in miles per hour?

    asked by Laura
  181. physics

    A place kicker must kick a football from a point 34.0 m (about 37 yd) from the goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 21.0 m/s at an angle of 56◦ to

    asked by John
  182. Physics

    A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 22◦ below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

    asked by John
  183. English

    Can someone please check my answers? I'll write the directions above them. *Underline the subject once and the verb/verb phrase twice. Place each infinitive in parenthesis. 1. After dinner the guests desire to enjoy some coffee. (subject- guests verb-

    asked by Jane
  184. Science

    A classmate states that igneous rock must always become sedimentary rock next , according to the rock cycle .explain why this statement is not correct

    asked by Freddriuna
  185. Physical Science ASAP

    A child weighing 200 newtons is sitting in the center of a swing. the swing is supported evenly by two ropes, one on each side. what is the tension force in one of the ropes?

    asked by unknown
  186. math

    Serena's parents drove her to Gulf Coast Beach.The trip from home to the beach took 2 1/2 hours at an average of 56mph.On the return trip,they drove at an average of 60mph.H ow far is the beach from their home?

    asked by 2000sbaby
  187. Math

    Ace's grandfather is 3 years older than Ace's grandmother. Their combined age is 121 years. How old is each?

    asked by Ashleigh
  188. Chemistry

    What is the volume in liters of 3.0moles methane gas, CH4, at 12∘C and 1.48atm ?

    asked by rose
  189. chemistry

    A 0.286g sample of carbon dioxide, CO2, has a volume of 585mL and a pressure of 495mmHg . What is the temperature, in kelvins and degrees Celsius, of the gas?

    asked by rose
  190. Algebra

    Write a function rule for: x 1 2 3 4 5 y 1 5 9 13 17 I do not get these please explain?

    asked by Cassie
  191. Math

    If the difference of two numbers is a and the smaller is x, what is the greater number?

    asked by Ashleigh Cunningham
  192. Math

    The sum of two numbers subtracted from twice the sum of those numbers. Please help?

    asked by Ashleigh Cunningham
  193. Math

    One-third the sum of x, y, and z. How do I form this?

    asked by Ashleigh Cunningham
  194. Math

    In 8 years, a girl will be 3 years older than twice her present age. How old is she?

    asked by Ashleigh Cunningham
  195. chemistry

    A 30 mL sample of .165 M propanoic acid is titrated with .300M KOH. Calculate the pH at each volume of added base: 0 mL, 5 mL, 10, equivalence point, one-half equivalence point, 20 mL, 25 mL. Use calculations to make a sketch of the titration curve.

    asked by Anonymous
  196. math

    what type of numbers is found an odd number of times in the table from 1 to 9?

    asked by ashley
  197. Homework - Math

    The sum of two consecutive even integers is 122. What are the integers?

    asked by Ashleigh Cunningham
  198. math

    what type of numbers is found an odd number of times in the table

    asked by ali
  199. Chemistry

    You have a metal tank containing 74.0 moles of nitrogen gas at a pressure of 15.0 atm. If the pressure is measured at a temperature of 25.0 °C, then the volume of the tank must be ___ liters

    asked by Daud
  200. Chemistry

    K2Cr2O7, H2O2 and KMnO4 are all oxidizing agents. Common products of their reduction are Cr3+, H2O and Mn2+. Identify the change in oxidation number for the involved elements.

    asked by Anonymous
  201. Chemistry

    The negative terminal of a battery has an excess of electrons. If a wire connected to the negative terminal of a battery is placed in an acidic solution and bubbles were produced at the wire. Would the observed bubbles be consistent with oxidizing water to

    asked by Anonymous
  202. Chemistry

    When a pair of copper wires are connected to the (+) and (–) terminals of a 9–V battery and immersed in a solution containing I- ions, one of the wires becomes coated with I2. Besides simply wiping off the wire, how else could you remove the I2

    asked by Anonymous