Questions Asked on
February 20, 2017

  1. biology

    A bacterium has a genome size of 6.0 X 106 base pairs. There is one Origin of Replication (ORI) and each DNA polymerase catalyzes the addition of 1,000 nucleotides/second. How much time is needed to replicate the entire genome?

    asked by sara
  2. accounting

    Given the cost of direct materials of $500 and the labour rate of $20 per hour. Assuming the predetermined overhead rate is $5 per hour and the actual hours is 50 hours - please calculate the total cost of this job?

    asked by vivian
  3. Algebra

    Ratio reduced to lowest terms 139 hours to 2 days

    asked by Faith
  4. english 101

    which word or phrase is wrong? Her mother asked her what would she do after she graduated from college. her-would-she do-from

    asked by engl1301
  5. Chemistry

    how many chloride ions are in 0.28 mol MgCl2?

    asked by Ness
  6. psychology

    Dr. Zimand is studying testosterone levels and their influence on aggression in adult males. It is likely that Dr. Zimand specializes in the ____________ approach to psychology.

    asked by Anonymous
  7. Science

    density of wood that is 20 cm below water and 60 cm above water

    asked by Anonymous
  8. Thermal physics

    Explain thermal physics in details

    asked by Lukonde margret
  9. chemistry

    empirical formula for K 60.0% C 18.5% N 21.5% and P 7.5% I 92.5%

    asked by Mar
  10. mathmatics

    A man has Rs 10000. he lost 2/5 of his money and he spent 1/4 of the reamainder. find the reamaining money with him now.

    asked by Anonymous
  11. value

    liquidity ratio

    asked by value
  12. value

    the 3rd term of a gp is 63 and 5th term is 567.find the sum of the 6th term of the progression

    asked by value
  13. math

    Mrs.Santiago is 36 yrs. old and her son is 4 years old. When will the mother be thrice as old as her son?

    asked by charlene
  14. Maths

    the cost of ploughing a square field at ₹13.50 per meter is ₹5400 find the cost of fencing the field at ₹28.50 per meter

    asked by Nishta
  15. Production and Operation management...Pls Help me

    Explain,with examples,how the operation function set target relating to quality or meeting planned production schedules.

    asked by Ibra
  16. math

    1]find two possible values for the geometric mean of –1/4 and –4 [2]form a G.P that has two geometric means between (a)1029 and –3 (b) 2/k and 1/4k

    asked by kel
  17. Math

    Find area of rectangle whose length is 3 cm and 1 diagnal is 5 cm

    asked by Pooja
  18. Chemistry

    3Cu(s) + 8HNO3(aq) → 2NO(g) + 3Cu(NO3)2(aq) + 4H2O(l) If 15 g of copper metal was added to an aqueous solution containing 6.0 moles of HNO3, how many moles of NO(g) would be produced, assuming a 59.8 % yield.

    asked by Raphael
  19. Math

    How many square meter of wallpaper is required for a wall that has perimeter of 25 feet and 8 feet height

    asked by Azeezat
  20. science

    A gardener holds a hose 0.75m above the ground such that the water shoot out horizontally and hits the ground at a point 20m away.What is the speed with which the water leaves the hose?

    asked by rhamlyn casis
  21. Physics

    A stone is dropped from a hot air balloon that is rising at a constant speed of 2.2 m/s. If the stone takes 4.8 seconds to reach the ground then … a) What was the height of the balloon at the moment the stone was released? b) What is the height of the

    asked by Jimbo
  22. Math

    the age of the father is square of the age of his daughter . five years hence the fathers is three times as old as daughter .write the quadratic equation

    asked by Ramesh
  23. Chemistry

    A 5.0×101 kg sample of water absorbs 324 kJ of heat. If the water was initially at 22.2 ∘C, what is its final temperature?

    asked by Carlos
  24. Math

    A large hose will fill a pool in 40 minutes while it takes a smaller hose 60 minutes to fill the same pool. The same pool requires 80 minutes to drain if the drain is open. Suppose one day both hoses are turned on, but by accident the drain was left open.

    asked by Charlene
  25. Science

    How many moles of mercury will be produced by electrolyzing 1.0M Hg(NO3)2 solution with a current 2.00A for 2 hours.

    asked by Neha
  26. math

    the angle of elevation of the top of the building from a point 30 meters away from the building is 65 degrees

    asked by Daniela
  27. value

    show that the sum of nterm of the progression is logx,logx^2,logx^3,logx^4---is n(n+1)/2 logx

    asked by value
  28. math

    A hiker is 400 meters away from the base of the radio tower. The angle of elevation to the top of the tower is 46 degrees . How high is the tower?

    asked by Daniela
  29. algebra

    Ms. Allison drew a box-and-whisker plot to represent her students scores on a midterm test. Lowest value=44 Lower quartile=47 Median=72 Upper quartile=81 Highest value=96 Jason received 47 on the test. How does Jason's score compare to his classmates? A.

    asked by faith
  30. Health & Physical Education

    Hello, I REALLLYYY need help with my Health and physical ed quiz. I have ONE question that i need help answering. please and thank you. 1) Your doctor tells you that you and your twin sister have the same basal metabolism rate (BMR). You live independent

    asked by Ms. Lonely
  31. Vocabulary

    Mary gulps down a cup of tea quickly. I am not sure whether use present or past tense. Please help to check. Thanks & regards,

    asked by deyond ng
  32. math

    An observer in a lighthouse 48.8 m above sea level saw two vessels moving directly towards the lighthouse. He observed that the angles of depression are 42 and 35 degrees. Find the distance between the two vessels, assuming that they are coming from the

    asked by Daniela
  33. Esol

    in which sentences fast used as adverb? The cars on the overpass moved fast -the fast car drove over bridge-the battle couldn’t hit the fast pitch-the clock is 10 minutes fast- --------------- my answer=The cars on the overpass moved fast

    asked by Victoria
  34. Maths

    If a farmer has 90 animals in a field.4/9 are sheep,1/3 are cows,1/10 are horses and the rest are pigs.How many pigs are there?

    asked by Billy
  35. math

    A diagonal of a parallelogram forms 25° and 35° angles with the sides of a parallelogram. Find the angles of the parallelogram.

    asked by annie
  36. math

    A 12-meter high post casts a 19-meter shadow. Find the angle of elevation to the sun. -what is/are given? -formula used -solution

    asked by Daniela
  37. Math

    Ms. Allison drew a box-and-whisker plot to represent her students scores on a midterm test. Lowest value=44 Lower quartile=47 Median=72 Upper quartile=81 Highest value=96 Jason received 47 on the test. How does Jason's score compare to his classmates? A.

    asked by Help!
  38. Math

    Problem: Tad draws three cards at random, without replacement, from a deck of ten cards numbered 1 through 10. What is the probability that no two of the cards drawn have numbers that differ by 1? Express your answer as a common fraction. Scott's solution:

    asked by Nikhil
  39. Physics

    A 71 kg skydiver jumps out of a plane at an altitude of 1370m. She reaches terminal velocity of 68m/s. She opens the parachute at an altitude of 328m, and lands with a speed of 2.8m/s. a)How much (negative) work is done by air resistance before she opens

    asked by Helen
  40. college chemistry

    Calculate how much carbon you use in a year, by considering how much driving you do a year. If I use 500 gal per year, what is my answer? balanced combustion equation which shows how the main component in gasoline reacts in your car and produces carbon

    asked by Alex
  41. College Algebra

    For fx=6x-5 and gx=3x^2-4 find the following (fog)(x) Having problems understanding (gof(x)=g(f(x))= 3(f(x))^2-4 3(6x-5)^2-4 (36x-9-25)-4

    asked by Lisa
  42. Algebra - PLEASE HELP!

    Can you PLEASE help me with this problem? I do not understand... The area of a triangle can be found by using the formula A=1/2bh. The area of the triangle can be represented by the expression -17.5x2^ - 138.5x - 27. The triangle's base length is greater

    asked by Leroy
  43. geomatry

    Prove algebraically that the ratio of perimeters of two triangles is 1:4 if the ratio of their corresponding sides is 1:4

    asked by ann
  44. geometry

    write an indirect proof to prove that if there is a line and a point not on a line, then exactly one plane contains them

    asked by ann
  45. physics

    The Earth is 150 million km from the sun. It completes one orbit in a period of approximately 365.25 days. Calculate the orbital speed of Earth in km/hour. please helpppp

    asked by loral
  46. math

    The ratio of the units digit to the tens digit is one-half. The tens digit is two more than the units digit.Find the number.

    asked by kitty
  47. Algebra

    I don't understand how to do this problem: A savings account is started with an initial deposit of $500. The account earns 1.5% interest compounded annually. (a) Write an equation to represent the amount of money in the account as a function of time in

    asked by JustMe
  48. Math

    A number is such that thrice its 14 less than 5 times the number.find the number

    asked by Dinar basic science
  49. Math

    my divisor is 5 I'm greater than 4 X 5 I'm less than 5 x 5 my remainder is 1 what dividend am I

    asked by AJ
  50. Chemistry

    Consider compounds trans-4-tert-butylcyclohexanol and 4-tert-butylcyclohexanone below. Using silica gel TLC plates, which of these two compounds will have the higher Rf value when dichloromethane is the developing solvent? Why? Does it possibly have to do

    asked by Lyndsay
  51. English

    "Yet thrusting perpetually under siege. Your armed struggles for profit" What does these stanzas from On the Pulse of Morning mean? Please help me

    asked by Acasia
  52. Math

    In a two digit number the tens digit is two less than the units digit.If the digits are reversed, the sum of the reversed and the original number of 154.Find the original number.

    asked by GeniusTigeress
  53. Math

    In a book closet, mathematics books are kept in stacks of 4. If each student carries no more than one stack, what is the least number of students needed to carry books for a class of 23? Is the answer five or six students?

    asked by Matt
  54. ELA

    The Peachtree Road Race is unique as a 10K road race in three distinctive ways: it is run on the 4th of July, it has a rich tradition, and it is the most competitive 10K in the world. Which is the BEST meaning for distinctive as it is used in the selected

    asked by anonamus
  55. Vectors

    A boat is capable of 20 km/h in still water. You wish to cross the river downstream so that the angle the boat's push makes with the bank is 50 degrees. At what angle to the bank should the boat steer if the current is 8 km/h? How long will it take to

    asked by John
  56. physics

    An electron in a cathode-ray tube is traveling horizontally at 2.10×109 cm/s when deflection plates give it an upward acceleration of 5.40×1017 cm/s2 .How long does it take for the electron to cover a horizontal distance of 6.30 cm ? What is its vertical

    asked by sintia
  57. Algebra/Math

    How much dry substance is there if we have 150g of 8% of a solution of this substance.

    asked by GeniusTigeress
  58. Math

    If goods to be shipped weigh 520 pounds 6ounces and the crates and packaging weigh 21pounds 9ounces what is the gross weight of the shipment?

    asked by Ernestine
  59. physics

    IP A white-crowned sparrow flying horizontally with a speed of 1.70 m/s folds its wings and begins to drop in free fall How far does the sparrow fall after traveling a horizontal distance of 0.400 m

    asked by sintia
  60. 6th grd. MATH QUIZ HELP!!!!

    Questions- 1) Solve the equation 3x=-3=-18 a) x=-7 b) x=-5 c) x=-3 d) x=5 THERE ARE MORE QUESTIONS!

    asked by Ms. Walker
  61. physics

    A soccer ball is kicked with a speed of 16.7 m/s at an angle of 45.0 ∘ above the horizontal.If the ball lands at the same level from which it was kicked, for what amount of time was it in the air?

    asked by ana
  62. Physics

    What happens to the location of the image when the radius of curvature changes? I think it moves farther away when the curvature increases.

    asked by Anonymous
  63. English

    "I and the Tree and the Rock were one" What does it mean that the River, tree and rock were one?

    asked by Acasia
  64. Chemistry

    Write the Kc expression for the following reaction: Fe3+ + SCN- = FeSCN2+

    asked by Aiyana M.
  65. Math Algebra

    Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.

    asked by Tony
  66. Politics

    Compare Britain's and America's government. How are they similar? How are they different? Consider things like: Who is the leader of their country or their executive? Who makes the laws in their country? How do their elections work?

    asked by Lana
  67. Linear algebra

    Let L1 be the line passing through the points Q1=(−2, 1, 1) and Q2=(−4, 4, 0) and let L2 be the line passing through the point P1=(−6, −6, 0) with direction vector →d=[9, 6, 3]T. Determine whether L1 and L2 intersect. If so, find the

    asked by shana
  68. Algebra

    Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.

    asked by Russell
  69. Algebra

    I spent hours on this and I still cant figure it out please help me: Let L1 be the line passing through the points Q1=(4, 2, −3) and Q2=(5, 5, −5). Find a value of k so the line L2 passing through the point P1 = P1(3, 7, k) with direction

    asked by shana
  70. Science

    You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg from the floor but they take longer time to do so.Who has completed more or less work?Explain.Who has used more power?Why?

    asked by Susie
  71. physics

    In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 17 m/s at an angle of 39 ∘ above the horizontal. How long does it take for the ball to reach the wall if it is 3.8 m away? How high

    asked by ana
  72. physics

    What is the magnitude of your total displacement if you have traveled due west with a speed of 23 m/s for 125 s , then due south at 12 m/s for 255 s ? 2sf What is the direction of your total displacement in part A.

    asked by sintia
  73. Math

    The fruit plants in my garden do not bear fruit during their first summer. The fruits are picked for the next two years and then the plants become too woody and need to be pulled up. Occasionally some of the die over winter. The last five years I had fruit

    asked by Alice
  74. chemistry

    Create balanced equation, given the two compounds in aqueous solution may react with one another. State whether or not a chemical reaction occurs. Make sure to include the state of each reactant and product. If a precipitation reaction occurs, provide the

    asked by Aaron
  75. physics

    An electron in a cathode-ray tube is traveling horizontally at 2.10×109 cm/s when deflection plates give it an upward acceleration of 5.40×1017 cm/s2 . How long does it take for the electron to cover a horizontal distance of 6.30 cm ?What is its vertical

    asked by sintia
  76. algebra

    system of equations c-3d=27 4d+10c=120

    asked by Rocky
  77. Algebra

    Solve algebraically using only variable: The length of a rectangle is two less than three times its width. If the area of the rectangle is 65, find the length and the width. (The area of a rectangle is equal to its length times its width.

    asked by Tony
  78. Physics

    which of the following is NOT true about the path of a cannon ball launched horizontally from the earth's surface if air resistance is neglected? a. the cannnonball has a uniform horizontal velocity b.the total velocity of the cannon ball increases as a

    asked by Anonymous
  79. math 1

    system of linear equations of substitution. a=2/b-3 a=2b-8

    asked by Rocky
  80. Algebra

    2.1/ x+1 4/5 = 3/10x The fraction 2.1/x+1 4/5 equals 3/10x. Find out what x equals.

    asked by GeniusTigeress
  81. Algebra

    Can you please confirm that my answer is correct to this problem? 80x2^ - 96x + 27 =0 I am using the quadratic formula to solve... I would put the formula here but I can't put the square root sign in here. My answer is -1.33 and -2.22 Is this correct?

    asked by Lucille
  82. math 1

    c-3d=27 4d+10c=120

    asked by Rocky
  83. History

    When does the Terror end and who seizes control of france? July 27 1794 and Napolean

    asked by Anonymous
  84. Math

    If a circular railroad crossing sign has a diameter of 30in what should its areas be?

    asked by A girl
  85. History

    What was the name of the new freedom of the press newspaper created by Jean Paul Marat

    asked by Anonymous
  86. Chemistry 101

    Fe3+ and CN-

    asked by Siyabonga
  87. Esol

    which of them is correct? gosh, i be ordering a v-8! -- gosh,i coulda had a v-8!--gosh, i should ordered a v -8 !--gosh, i could have had a v-8!-- my answer, gosh, i could have had a v-8!

    asked by Victoria
  88. History

    Who does Robespierre round up and execute

    asked by Anonymous
  89. physics1

    What is the magnitude of your total displacement if you have traveled due west with a speed of 23 m/s for 125 s , then due south at 12 m/s for 255 s ? Express your answer using two significant figures. What is the direction of your total displacement in

    asked by anonymous
  90. Science

    1. Which of the following is an example of matter A.Leaves B.Shadows C.Light from the sun D.Sound

    asked by Cookie dough
  91. Algebra

    Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.

    asked by Tony
  92. Math

    Peanuts, walnuts, and cashews are mixed by volume in the ratio 5:3:2, to make a party snack. The number of cups of walnuts needed to make 12 cups of party mix are between: a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5

    asked by Terrence
  93. Pre Calculus 30

    I'm having a hard time understanding the fundamental counting principal and I don't even know where to start on some of the questions.Here are a few questions I'm having trouble with. 1.Andrea, Brian, Carol, David, Emmalee, Floyd, and Gloria are to stand

    asked by John
  94. Algebra

    4.5cm is 75% of

    asked by GeniusTigeress
  95. math 1

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

    asked by Rocky
  96. Algebra

    The perimeter of a rectangle is 46 inches, and the area is 120 square inches. Find the length and width of the rectangle.

    asked by Tony
  97. math 1

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

    asked by Rocky
  98. physics

    A car travelling at 25 m/s slams its break leaving skids marks along a distance 125 m as it comes to rest. the coefficient f friction between the tire and the road is a 5 b 2.5 c 1 2 .4 e .25 A 500N worker pulling a 500 N crate on a rope with a force of 50

    asked by Anthony
  99. math (precalc)

    Find a polynomial with integer coefficients that satisfies the given conditions. R has degree 4 and zeros 3 − 4i and 5, with 5 a zero of multiplicity 2.

    asked by Kyle
  100. Math

    The fruit plants in my garden do not bear fruit during their first summer. The fruits are picked for the next two years and then the plants become too woody and need to be pulled up. Occasionally some of the die over winter. The last five years I had fruit

    asked by Alice
  101. Algebra Word Problem

    Solve algebraically using one variable: Find three consecutive odd integers such that the product of the first integer and the third integer is equal to nine more than twelve times the middle integer.

    asked by Tony
  102. Math

    I am more than 25 and less than 28 I am an even number

    asked by Itzi
  103. Social Studies

    Would surviving the holocaust affect religion or spirituality? Why?

    asked by Kylie
  104. chem

    22.5 grams of lithium reacts with 33.5 grams of aqueous aluminum sulfate

    asked by Anonymous
  105. Math

    Kenny will invest $16,000 in an account with an annual interest rate of 5% and the interest is compounded quarterly. How much money will be in the account in 7 years? How will I set this up?

    asked by Hannah
  106. Algebra 1

    Suppose a spherical asteroid has a radius of approximately 9.0 x 10^2m. Use the formula 4/3*pi r^3 to find the approximate volume of the asteroid. 2.57 * 10^9 m^3 1.07 * 10^4 m^3 2.54 * 10^10 m^3 4.51 * 10^10 m^3 I've worked 4/3*pi*10^2 = 900 meters... but

    asked by Fading
  107. Algebra

    can you please help me with this problem: 30y2^ + 60y + 300 = 5y2^ + 120y -24 25y - 60y + 324 = 0 used the quadratic equation (used the square root) x = -60 (60)2^ - 4(25)(324) / 50 x = -60 (3600 + 32,400)/50 x = -60 +or minus(-28,800) / 50 x = -60 +

    asked by Angela
  108. Math

    Monica wants to know what she needs to get on the exam to get a certain grade in her English class. The term Mark is worth 70% of the course and exam is worth 30%. The following is the formula used to calculate her overall Mark. Course Mark = term Mark +

    asked by Emma
  109. Algebra 1

    When dividing two numbers written in exponential notation, what do you do with the exponents of 10? add subtract multiply divide I flat out do not know, can somebody please tell me what it is and why?

    asked by Fading
  110. Algebra

    Hello...can you please let me know if I worked this problem correctly: 10Z2^ + 8z - 7 = 16z2^ + 48z - 12 0 = 6z2^ + 30z - 5 a = 6 b = 30 c = -5 x = 30 + or - (30 2^ -4(6)(-5) / 12 x = -30 + 31.937 / 12 = .161 x = -30 - 31.937 / 12 -5.161 Am I on the right

    asked by Joyce
  111. algebra

    A car cost $25,750.00 and depreciates in 20% per year how much will the car be worth in 5 years

    asked by Anonymous
  112. Physics

    The electric field from an infinitely large and uniformly charged sheet is independent of the distance from the sheet, yet the individual charges in the sheet all produce fields that object the inverse square law. Why doesn't the field get weaker at

    asked by Timothy
  113. Chemistry

    You put a rock weighing 45g into a graduated cylinder. Before you put the rock in the graduated cylinder, the volume of water in the cylinder is 10mL. After you put the rock in the graduated cylinder, the volume rises to 25mL. What is the density of this

    asked by Lysa
  114. math

    There are 3 red balls and 7 blue balls in Bowl A, and 8 red balls and 2 blue balls in Bowl B. Mandy rolls a die and if a prime number is up, Bowl A is selected; otherwise Bowl B is selected. Then Katie draws a ball randomly from the selected bowl. Find the

    asked by Andrew
  115. English

    4) 1 The first rugs were made as a part of their need. Read the passage. Look at the underlined section marked number 1. There may be a mistake in the way the sentence is written. If you find a mistake, choose the answer that corrects the mistake. If there

    asked by Maya
  116. English

    ) (4) Her carpets were planned for, so not woven, until she knew the size of the room in her new home in which it was to be used. Read the passage. Look at the underlined section marked number 4. There may be a mistake in the way the sentence is written.

    asked by Maya
  117. Science

    You have been challenged to lift a weight of 200 kg from the floor.Your challenger has the same task and also lifts a 200 kg from the floor but they take longer time to do so.Who has completed more or less work?Explain.Who has used more power?Why?

    asked by Susie
  118. math

    1.Nancy is 3 times as old as Cathy. In seven years, she will be ten years older than Cathy. What are their present age?

    asked by leslie
  119. Biology

    What is the path that electrons take in C3 photosynthesis?

    asked by Anon
  120. math

    So far this year Nick has scored a 75, 81, 88 and 92 on four of his math tests. Each test is worth a maximum of 100 points. To earn a B this year, Nick needs a test average of 80 or better. Write the inequality that represents this scenario. Let t equal

    asked by z
  121. Quantitative Reasoning (MATH)

    If the national economy shrank at an annual rate of 11​% per year for three consecutive​ years, then the economy shrank by 33​% over the three​-year period.

    asked by theresa
  122. chemistry

    . What would be the molarity of the solution produced when 276 mL of 6.00 M NaOH is combined with 125 mL of a 2.00 M NaOH solution?

    asked by jey
  123. math

    Write the inequality that represents the solution set for −15/9 y

    asked by z
  124. math

    20 men dig a trench in 12 days,how many men would be needed to do it in 10 days

    asked by Anonymous
  125. history

    Hi, can someone please explain what it is I am to do. Here is the question. (I am extremely confused. thanks for your time!) -thanks- identify the headlines that could be described as yellow journalism and explain how these headlines and their stories

    asked by
  126. Chemistry

    How many grams of K2SO3 would be required to react completely with 200.0 mL of 0.245 M HCl

    asked by Lauren
  127. calculus

    The position of a particle is given by the equation of motion s(t)= 1/(1+t)where t is in sec and s in meters find the velocity.

    asked by donnie
  128. English

    what is passive voice

    asked by Anonymous
  129. Math

    Peanuts, walnuts, and cashews are mixed by volume in the ratio 5:3:2, to make a party snack. The number of cups of walnuts needed to make 12 cups of party mix are between: a) 1 and 2 b) 2 and 3 c) 3 and 4 d) 4 and 5 Math - Ms. Sue, Monday, February 20,

    asked by Terrence
  130. Teacher Aide / Language and other Barriers

    A student who has limited English proficiency would mist likely be placed in a(n) A. ESL I class B. ESL II class C. LEP Class D. Sheltered-content class. My answer I am confused with B and C. So please help me

    asked by A student
  131. English

    I know that when we are writing essays, we cannot use the words we, you, etc. Is it okay if we use the words they, them, their?

    asked by Anonymous
  132. Chemistry

    If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass? 5.94% KCl 8.55% KCl 14.4% KCl 16.8% KCl Can someone explain this to me? I don't want the answer I just want to know how to find it.

    asked by Acasia
  133. Math

    While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the

    asked by Karola
  134. math

    an equilateral triangle has three equal sides , which equation could be used to find the measure,M,of one angle A.180+3=M ---- B.3 x 180 C. 180-3=180 D. 180 divided by 3=M if you know all the answer GREAT!!!

    asked by harlee
  135. Algebra

    there are three nickels three dimes and four quarters in your pocket. you randomly pick three coin and place them on the counter. the first two coin are a dimes, and the third is quarter

    asked by Anshil
  136. physiology

    how many grams of glucose (180grams/mole) to make a 13% glucose solution with a final volume of 600 milliters.

    asked by sam
  137. Chemistry

    A sample of 10.7 g of O2 reacts completely with CO to form CO2. 2 CO + O2 → 2 CO2. How many grams of CO is required.

    asked by Jennifer
  138. Math

    According to legend, manhattan islansd was purchased in 1626 for 24 dollars. If the 24 dollars have been invested instead at a rate of 6% interest per year, what would its value be in 2011?

    asked by Chantal
  139. math

    A pentagon has a perimeter of 60 inches, a side measures 12 inches. what is the sum of the measures of the interior angles.

    asked by a parent
  140. math

    From the top of the control tower 250 m tall, an airplane is sighted on the ground below. If the airplane is 170 m from the base of the tower, find the angle of depression of the airplane from the top of the control tower.

    asked by Daniela
  141. Math 115

    While solar energy powered home systems are quite expensive to install, adding some passive energy features to conventional construction can make a substantial reduction in heating and cooling costs. Passive solar requires no machinery and uses the

    asked by Stacy
  142. chemistry

    N2(g) + 3 H2(g) → 2 NH3(g) [balanced] If 5.42 g of nitrogen gas are reacted with 5.42 g of hydrogen gas, which of the reactants is the limiting reactant? Use the molar mass data below if necessary. Molar mass of N2 = 28.02 g/mol Molar mass of H2 = 2.02

    asked by Jennifer
  143. Statistics

    A CBS News/New York Times survey found that 97% of Americans believe that texting while driving should be outlawed (CBS News website, January 5, 2015). a. For a sample of 10 Americans, what is the probability that at least 8 say that they believe texting

    asked by Jack Rogers
  144. Statistics

    Wendy's restaurant has been recognized for having the fastest average service time among fast food restaurants. In a benchmark study, Wendy's average service time of 2.2 minutes was less than those of Burger King, Chick-fil-A, Krystal, McDonald's, Taco

    asked by Kelly Luth
  145. Statistics

    The Information Systems Audit and Control Association surveyed office workers to learn about the anticipated usage of office computers for personal holiday shopping (USA Today, November 11, 2009). Assume that the number of hours a worker spends doing

    asked by Kelly Luth
  146. Chemistry

    N2(g) + 3 H2(g) → 2 NH3(g) [balanced] If 5.42 g of nitrogen gas are reacted with 5.42 g of hydrogen gas, which of the reactants is the limiting reactant? Use the molar mass data below if necessary. Molar mass of N2 = 28.02 g/mol Molar mass of H2 = 2.02

    asked by Jennifer
  147. calculus

    A convex lens of a focal length f can be defined by the lens equation 1/f=1/p + 1/q if an object is a distance p from the lens, then the distance q from the lens to the images. For a particular lens, f=2cm and p is increasing find 1. a general formula for

    asked by donnie
  148. Pre Calculus 30

    1.How many positive three-digit integers can be made from the digits {3,4,5,6,7} if digits may be repeated? 5x4x3=60 2.In how many ways can all of the letters of the word HEXAGON be arranged if the arrangement must start with a consonant and end in a

    asked by John
  149. Math

    A wire is stretched from the top of a two feet tall anchor to the top of a 45 foot tall antena. If the wire is straight and has a slope of 3/5, then what is the length of the wire in feet?

    asked by Anonymous
  150. History

    Why did Russia's withdrawl from the war hurt the Allies? A The Russians had almost won the war before they had to withdraw B Germany was able to travel to Russia to attack the allies C The Russians begin to fight against the allies D Britain and France

    asked by Help Ms.Sue
  151. 02 - Corporations: Organizations and Stock, Exam 2

    Dividends in arrears occur when the company doesn’t pay dividends to A. cumulative preferred stockholders. B. noncumulative preferred stockholders. C. participating preferred stockholders. D. nonparticipating common stockholders.

    asked by Wise
  152. stats

    A preliminary survey shows that 35% of college students smoke. In a class of 42 students, what is the probability that more than half the students smoke?

    asked by ......