1. Math

    Prove that (xt+yr)/yt is already in lowest terms, b and d have no common prime factor. Note that x/y and r/t are fractions in reduced terms.

    asked by John on September 29, 2013
  2. Math

    A piece of a broken circular gear is brought into a metal shop so that a replacement can be built. A ruler is placed across two points on the rim, and the length of the chord is found to be 14 inches. The distance from the midpoint of this chord to the

    asked by Matty on April 28, 2017
  3. Math

    Every few minutes, Cindy measures the height of water, in inches, in a bucket while it is being filled at a constant rate. She makes a graph of her results. Two points on her graph are (5,6) and (8,9). Meanwhile, Ben is draining another bucket of water at

    asked by Tijolo on March 4, 2016
  4. geometry

    The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR.

    asked by sarah a on April 15, 2010
  5. Math

    The scale drawing of a soccer field mis 1 inch= 10 yards. The drawing of a soccer field is 12 inches by 7.5 inches. Find the dimensions of the actual soccer field in square feet.

    asked by Michelle on August 13, 2016
  6. geometry

    The lengths of segments PQ and PR are 8 inches and 5 inches, respectively, and they make a 60-degree angle at P. (a) Find the area of triangle PQR. (b) Find the length of the projection of segment PQ onto segment PR. (c) Find the length of segment QR.

    asked by sally on April 12, 2010
  7. math

    two strips of fabric measure 14 2/3 inches and 20 7/8 inches in length. to form one length, the strips are sew together using 3/8 inch from each strip to make the seam. what is the final length of the fabric after the two strips are sewn together.

    asked by charles on October 20, 2016
  8. Calculus

    A carpenter wants to make an open-topped box out of a rectangular sheet of tin 24 inches wide and 45 inches long. The carpenter plans to cut congruent squares out of each corner of the sheet and then bend the edges of the sheet upward to form the sides of

    asked by kate on November 8, 2016
  9. Math

    Reduce the rational expression to lowest terms. If it is already in lowest terms, enter the expression in the answer box. Also, specify any restrictions on the variable. 6a^4+162a/3a^4−9a^3+27a^2 6a^4+162a/3a^4-9a^3+27a^2 6a^3*a+6*27a/3a^4-9a^3+27a^2

    asked by Keonn'a on November 4, 2018
  10. Calculus

    A storage tank used to hold sand is leaking. The sand forms a conical pile whose height is twice the radius of the base. The radius of the pile increases at the rate of 2 inches per minute. Find the rate of change of volume when the radius is 5 inches.

    asked by Megan on November 23, 2011
  11. Math (HELP PLZ)

    The glass in Lee’s window needs replacing. It is 30 inches wide and 24 inches long. What is the area (A) of the glass Lee should buy? A. A = (2 × 30) + (2 × 24) = 108 in. B. A = 30 × 24 = 720 in2 C. A = 2 × (30 + 24) = 108 in2 D. A = 30 + 24 = 54 in.

    asked by Derek on June 3, 2013
  12. math

    A cardboard box is open at one end and is shaped like a square prism missing one of its square bases. The volume of the prism is 810 cubic inches, and its height is 10 inches. A)What is the length of each side of the base? B)Draw a net of the box C)How

    asked by kyle on April 28, 2015
  13. math

    Write as an algerbraic expression 10 times higher than the chair's height h, plus 3 inches. Also$3 more tha half of whaat Jason makes d.

    asked by Carlo on January 8, 2009
  14. Astrophysics

    Star Power and Temperature Star A and Star B Consider two stars that are the same size (they have the same diameter), but have different surface temperatures. Let’s say Star A’s temperature is 3000 K and Star B’s temperature is 4500 K. Let’s look

    asked by Lisa on October 9, 2012
  15. Math Help

    A map of Asia has a scale of 1.5 inches=300 miles. The distance between Thailand and China is a about 5.25 inches. How far is it from Thailand to China in miles? Round to the nearest mile. A. 1,050 miles B. 1,575 miles C, 2.010 miles D. 2,362 miles Is the

    asked by callie on November 20, 2014
  16. math

    how long is the groove on one side of a long play(33 1/3 rpm) phonograph record? assume there is a single recording and the author (beginning) groove is 5.75 inches from the center and the inner(ending) groove is 1.75 inches from the center. the recording

    asked by kakak on December 7, 2014
  17. pre algebra

    julian owns an ice cream perlor. for pricing purposes, he needs to know how much ice cream a waffle cone holds. the cone is 5 1/2 inches deep and has a diameter of 3 inches. what is the volume of the waffle cone? if necessary round to the nearest tenth.

    asked by lavena on June 16, 2010
  18. Geometry

    A dartboard consists of five concentric circles. The radius of the smallest circle is about 1 inch. The radius of the second circle is about 3 inches longer. The radius of the third circle is about 1 inch longer than the previous circle. The radius of the

    asked by Sholanda on May 16, 2012
  19. Math

    You want to create an open rectangular box from a rectangular box. from a square piece of cardboard 20 inches by 20 inches. You will cut a 3 inch square from each corner. Draw a diagram and find the length of the box. Can someone help me with this diagram

    asked by Olivia on August 24, 2014
  20. Calculus

    Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully about what the meaning of this mathematical statement is. (a) Approximately what percent of American men are between 68.7 and

    asked by Cesar on October 27, 2011
  21. Calculus

    Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully about what the meaning of this mathematical statement is. (a) Approximately what percent of American men are between 68.7 and

    asked by Cesar on October 28, 2011
  22. math

    4 boards (1 inch X 8inchs X 6feet} and 3 boards (1 inch X 6 inches x 4feet}= how many board feet? 1 board foot =1 inch by 12 inches x 12inches

    asked by Sam on August 9, 2012
  23. Math

    A 26 inch ribbon is cut into three pieces. One piece is 12 inches. The remaining two pieces must have one piece two inches longer than the other. How long is the shortest piece of ribbon?

    asked by Iris on January 27, 2011
  24. math

    When Hugo was 9 years old he was 56 inches tall. Hugo is now 12 years old and he is 62 inches tall. Find the percent of increase in Hugo’s height to the nearest tenth.

    asked by maggie on January 31, 2014
  25. math

    Under normal circumstances 1.5 feet of snow will melt into 2 inches of water. After a recent snowstorm, there were 3.5 feet of snow. How many inches of water will there be when the snow melts.

    asked by Kim on March 3, 2013
  26. math

    Searches related to what is the answer to Triangle ABC has two sides that measure 12 inches and 16 inches. Which could be the measures of the corresponding sides of a triangle that is similar to triangle ABC? 1. 10 in and 14 in 2. 9 in and 12 in 3. 6 in

    asked by Donna on February 15, 2018
  27. Math ASAP

    Top Area: 13 square inches Total Surface Area: 346 square inches What is the Lateral Surface Area of the 5-sided prism?

    asked by Omar on August 24, 2013
  28. Math

    A 5 inch by 8 inch rectangle is enlarged to a similar rectangle whose smallest side measures 9 inches. What is the length in inches of the diagonal of the enlarged rectangle?

    asked by Xian on December 6, 2013
  29. Math

    Lyle is putting his videotapes on a shelf.the shelf is 12 inches long.if each videotape is 1 1/2 inches wide,how many videotapes can he put side by side on the shelf?

    asked by Louis on October 5, 2014
  30. Math

    Anais bought 4.5 yards of ribbon. She had 3 feet 8 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains?

    asked by Autumn on April 13, 2017
  31. Math

    Gina cut a piece of ribbon into 3 equal pieces. Then she cut off 2 inches off one piece to make it 3 inches. How long was the original piece of ribbon?

    asked by Alyssa on January 30, 2013
  32. Math

    Kevin has a triangle table cloth with side lengths of 5 inches,12 inches. He wants to cover a right angle triangle table cloth. Find if the cloth is appropriate for the

    asked by Davena on March 13, 2017
  33. Geometry

    Hello! I am just wondering the steps to solve this equation? Given sin α = n/m where n = 12 inches and m = 16 inches, solve for α to the nearest degree. So it would be Sin(a) = 12/16, however, I'm unsure on how to solve for the degree a. Any help is

    asked by Evelyn W. on June 7, 2018
  34. algebra

    Anais bought 2 1/2 yards of ribbon. She had 1 feet 6 inches of ribbon left after trimming some curtains. How many inches of ribbon did Anais use to trim the curtains?

    asked by ada on March 24, 2015
  35. Algebra

    The women’s recommended weight formula from Harvard Pilgrim Healthcare says, "Give yourself 100 lb for the first 5 ft plus 5 lb for every inch over 5 ft tall." a. Find a mathematical model for this relationship, where W be the recommended weight in lbs

    asked by Shany M on September 11, 2016
  36. math

    I have a flat piece of plywood that measures 45 inches in width and 75 inches in length. I want to cut the board into identical square pieces with the integer side lengths and use the entire piece of wood. What are the dimensions (width & length) of each

    asked by He who should not be named on March 27, 2014
  37. calc

    by cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting flaps, the cardboard may be turned into an open box. if the cardboard is 16 inches long and 10 inches wide, find the dimensions of the box

    asked by Jemima on July 19, 2012
  38. Math

    Two questions: 1) Ryan's class drove for 350 miles in 6 hours and 20 minutes, what was their speed? 2) Starting point to destination is 500 miles; 9 inches on a map. If a driver stops 4 inches from starting point, how far are they from destination in

    asked by Allyson on May 13, 2016
  39. algebra math, 8th grade

    If a right triangle has one leg measuring 27 inches and one leg measuring 22 inches, what is the length of the hypotenuse? a. 35 b. 16 c. 7 d. 5 I got b. Is this correct? Please correct me (without cheating, okay?) if I am not! Thanks.

    asked by Tazia on January 4, 2018
  40. pre algebra

    Each side of the triangle shown has the same length. If the perimeter of the triangle is 49 inches, the length of each side is 3 inches. true or false

    asked by hi on June 30, 2011
  41. Math

    A rectangle has a length of 6 inches and an area 18 inches. If the radius of the circle is equal to the width of the rectangle what is the area of the circle?

    asked by Feras on August 7, 2014
  42. math

    A 2 inch by 2 inch square has its area increased by 21 square inches producing a new square. How many inches long is a side of the new square?

    asked by G on March 23, 2015
  43. Math fractions

    A picture frame is 6 1/4 inches wide by 8 inches tall. If a 5 inch by 7 inch picture is to be centered in the frame, what should the right margin be?

    asked by Devon on November 19, 2015
  44. math

    a square kitchen floor can be exactly covered withe square tiles that are either 9 inches or 15 inches on a side. what is the minimym area in square feet that the kitchen can have? how many of each size tile would be needed to cover the minimum size floor?

    asked by jack on March 7, 2013
  45. math

    Charlene is filling a box planter with soil.Each bag of soil contains enough to fill 500 cubic inches.If the base of the box planter is a 9-inch square and the sides are 18 inches tall,how many bags of soil will Charlene need?

    asked by Jennifer on May 1, 2012
  46. math

    A scale drawing of a kitchen is shown below. The scale is 1 : 20. A rectangle is shown. The length of the rectangle is labeled 4 inches. The width of the rectangle is labeled 5 inches. Show your work to determine the area of the room in square feet

    asked by mia on July 11, 2015
  47. 6th grade math

    Bernice made a kite by putting 2 triangles together The base of each trangle is 9 inches The height of each triangles is 12inches and the height of each triangles is 16 inches What is the area of the kite ? show your work (hint the area of a triangle is

    asked by erika on April 28, 2009
  48. algebra 2

    you are using tiles to make a picture frame for a square photograph with sides 10 inches long. You want the frame to form a uniform border around the photograph, You have enough tiles to cover 300 square inches. What is the largest possible frame width?

    asked by jasmin on December 29, 2011
  49. math

    (05.01)A scale drawing of a kitchen is shown below. The scale is 1 : 20. A rectangle is shown. The length of the rectangle is labeled 4 inches. The width of the rectangle is labeled 5 inches. Show your work to determine the area of the room in square feet.

    asked by Kata on January 4, 2019
  50. algebra

    reduce to lowest terms 75a^2b __________ 25ab^2 Do these with like terms: 75/25 then a^2/a then b/b^2

    asked by deborah on January 29, 2007
  51. math

    A cylindrical jar with height 8 inches and diameter 6 inches is filled to 75% capacity with juice. The juice is then poured into another cylindrical container with a 10 inch diameter and height of 4 inches. a. to what percent of its capacity is the second

    asked by Phillip on February 25, 2010
  52. Math

    Mandy's kitchen measures eight feet by seven feet. If she is making a scale drawing of one inch = two feet, how many inches will she use for eight feet? How many inches will Mandy use for seven feet?

    asked by please help me!! on April 10, 2012
  53. Math

    How many 1 1/4 inches strips can be cut from s string that is 4 3/4 inches long? My answer is 3 3/4 strips but the choices don't have this answer The choice are 19/5 strips 3 4/5 4 strips 4 1/4 strips

    asked by Raven on April 20, 2017
  54. chem

    a new compound composed of just Hex-Nuts and bolts is formed.A 13.7 Kg sample of the new compound is separated into its component elements with the following result 3.84 kg. of hex-nuts and 9.90 kg of bolts. 1. How many hex-nuts are present in the 13.7 kg

    asked by Amanda on October 22, 2012
  55. chemistry

    a new compound composed of just Hex-Nuts and bolts is formed.A 13.7 Kg sample of the new compound is separated into its component elements with the following result 3.84 kg. of hex-nuts and 9.90 kg of bolts. 1. How many hex-nuts are present in the 13.7 kg

    asked by Amanda on October 10, 2012
  56. Geometry

    A spherical foam ball, 10 inches in diameter, is used to make a tabletop decoration for a party. To make the decoration sit flat on the table, a horizontal slice is removed from the bottom of the ball, as shown below. If the radius of the flat surface

    asked by Bailey on October 23, 2017
  57. Pre-calculus

    A rectangular package to be sent by a delivery service can have a maximum combined length (y) and girth (perimeter of its cross section) of 300 inches. Assume that the width and height are the same (x). Find the equation for the volume of the box in terms

    asked by Anonymous on January 20, 2016
  58. Pre-calculus

    A rectangular package to be sent by a delivery service can have a maximum combined length (y) and girth (perimeter of its cross section) of 300 inches. Assume that the width and height are the same (x). Find the equation for the volume of the box in terms

    asked by Anonymous on January 20, 2016
  59. Algebra II

    I have a question about Algebra polynomials. Question goes about this A rectangular painting is twice as long as it is wide. A frame surrounds the painting. The frame is a constant 2 inches wide and has a area of 196 square inches. Find the dimensions of

    asked by Math Asker on October 8, 2015
  60. math

    Ali and Tim have 12 sheets of paper that are each 9 inches by 12 inches. They want to use all 12 sheets to make a sign for a basketball game. They plan to put a strip of cardboard around the outside edge of the sign. How should they arrange the 12 sheets

    asked by mary on October 17, 2013
  61. Math

    Ali and Tim have 12 sheets of paper that are each 9 inches by 12 inches. They want to use all 12 sheets to make a sign for a basketball game. They plan to put a strip of cardboard around the outside edge of the sign. How should they arrange the 12 sheets

    asked by Kingbla on May 23, 2012
  62. math

    the first three terms of a GP are the first, fourth and tenth terms of an AP. given that the first term is 6 and that all the terms of a GP are different, find the common ratio.

    asked by Robert on April 21, 2014
  63. math

    the ratio of width to length of a television scree in 3:4. What is the width of the screen if the length is 32 inches

    asked by Thomas on February 23, 2014
  64. Math

    The table below shows the height (in inches) and weight (in pounds) of eight basketball players. Height=67 69 70 72 74 74 78 79 Weight=183 201 206 220 226 240 253 255 About how many pounds would you expect a basketball player to weigh if his height is 84

    asked by Kaai97 on January 25, 2016
  65. Math

    The table below shows the height (in inches) and weight (in pounds) of eight basketball players. Height=67 69 70 72 74 74 78 79 Weight=183 201 206 220 226 240 253 255 About how many pounds would you expect a basketball player to weigh if his height is 84

    asked by Kaai97 on January 25, 2016
  66. Math

    The table below shows the height (in inches) and weight (in pounds) of eight basketball players. Height=67 69 70 72 74 74 78 79 Weight=183 201 206 220 226 240 253 255 About how many pounds would you expect a basketball player to weigh if his height is 84

    asked by Kaai97 on January 25, 2016
  67. Pre-Algebra

    1.Write the ratio in the simplest form 45:15 9:3 3:1*** 1:3 4:1 2.Solve the following proportion p/6 =7/8 p=5.25*** p=8 p-10.5 p=42 3.James has a model helicopter. The model is 8 inches long and 7 inches wide. The actual helicopter is 56 inches long. What

    asked by Cami on November 22, 2015
  68. math

    Chris is making a scale drawing of his rectangular room. His room measures 12 feet, 4 inches by 11 feet, 6 inches. He wants his drawing to be one-tenth the size of his room. What are the dimensions of his drawing?

    asked by nicole on April 6, 2011
  69. Math

    An ice cream cone is 5 inches high and has an opening 3 inches in diameter. It is filled with ice cream and then given a spherical top. How much ice cream is there? The top part is 1/2 of a sphere.

    asked by Ashley on April 8, 2016
  70. math

    emma made a rectangular picture frame with a heigth of 25 5/6 inches. The frame is 5 2/3 inches wide. What is the hieght of the picture emma placed in the picture frame? explain how you found your answer?

    asked by sarah on February 12, 2018
  71. pre-calculus

    A rectangular box has a perimeter of 36 inches. Which of the following equations represents the area of the rectangular box in terms of its width, w? a. A = 36w - w2 b. A = 18w - w2 c. A = 36 - w2 d. A = 18 - w2

    asked by Sam on December 12, 2016
  72. Geometry

    A photographer enlarged a picture. If the width of the image is 5 inches and the width of the pre-image was x, what is the scale factor for the dilation in terms of x?

    asked by Jonathan on January 5, 2016
  73. math

    An ice cream shop is changing the size of their ice cream cone. The volume of a cone is . How much will the ice cream cone hold if the radius is 4 inches and the height is 3 inches? Round your answer to the nearest hundredth place.

    asked by chelsea brown on November 30, 2011
  74. Math

    Show that each sequence is geometric. Find the common ratio and write out the first four terms. (Can you explain how to do it too?) > {(5/2)^n) > {(3n/9)} > {3^2n}

    asked by Avery on January 27, 2013
  75. Engineering

    The balance tank in our milk processing plant in our building holds about 10 gallons of milk. The inlet pipe is 1.5 inches in diameter abd the outlet is 3/4 inches diameter. If milk flows into the tank at .5 ft/sec how fast must it depart to keep from

    asked by matt on September 10, 2006
  76. Maths

    in a fraction the numerator exceeds 3 denominator, find the village knowing that decreasing 6 both terms of the fraction you get a new fraction that exceeds 9/20

    asked by Waqar on November 21, 2016
  77. Mathematics

    Suppose humans walk 10,000 steps a day on average. If your average step it about 18 inches, how many inches do you walk in a day? How many feet per day? How many miles a day?

    asked by Daniel on January 18, 2011
  78. Math

    A bedroom door in the house has the dimensions as the front door, which is at top 2 in. and the bottom is 36 in. but the length is 30 inches rather than 36 inches. How much greater is the volume of the front door than the bedroom door?

    asked by elaine on April 13, 2018
  79. math

    Aanya made a scale drawing of a picture. The original dimensions of the picture are 8 inches by 12 inches. Which choice shows a possible combination for the dimensions in Aanya’s drawing?

    asked by Anonymous on October 3, 2016
  80. algebra

    Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.

    asked by Brianna on November 26, 2014
  81. Math-Ratio and Proportion

    The scale of a die cast model car is 4:13.If the real car has a length of 177 inches and a height of 59 inches.How tall is the die cast model?

    asked by Alice on October 9, 2017
  82. math

    If the kitchen floor is shaped like a rectangle and measures 11 feet × 14 feet, how many square tiles will they need to cover the floor if each square tile measures 4 inches × 4 inches?

    asked by anonymus on April 21, 2014
  83. Math

    Jodi is cutting out pieces of paper that measure 8 1/2 inches by 11 from a large sheet that has an area of 1,000 square inches. What is the area of each pieces that jodi is cutting out?

    asked by Alishia on October 17, 2017
  84. Algebra 1

    A square painting is surrounded by a frame. the outside edges of the frame are x inches in length, and the frame is 3 inches thick. What is the total area of the frame? A)-12x+36 B)12x-36 C)x^2+12x+36 D)x^2-12x-36 Is it C or D?

    asked by Sam on December 22, 2016
  85. algebra

    Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.

    asked by Brianna on November 27, 2014
  86. math

    Part 1: Find the area of a rectangular object which has a length of 5√8 inches and a width of 2√5 inches. (3 points) Part 2: Explain, in complete sentences, how you arrived at the simplified answer and give the final solution in simplified radical

    asked by me on January 7, 2012
  87. math

    Ricardo wants to cover a 8" by 10" by 5" box with contact paper How many square inches of caontact paper will he need? How much ribbon will he need if the bow itself adds 15" just do l*W*H 8*10*5 then for the ribbon just add 15 to the solution of 8*10*5 =

    asked by Preston on January 22, 2007
  88. geometry

    Bob's Barricades rents orange plastic cones to use as barricades in road construction. Each cone is 24 inches high with a diameter of 14 inches. A gallon of orange paint will cover approximately 400 square feet. About how many whole gallons of paint will

    asked by Anonymous on May 7, 2014
  89. math

    Suppose that humans walk about 10,000 steps perday on average. Your average step is probably about 18 inches. If so, how many inches per day do you walk? How many feet per day do you walk? How many miles per day do you walk, to the nearest whole mile?

    asked by Bob on January 25, 2009
  90. Elle

    At the school carnival popcorn was given out in paper cones like the one shown(3-diameter and 5 being the height of the cone). Approximately how many cubic inches of popcorn can the cone hold? 1/3TT r^2 h 1/3 TT(1.5)^2(5) 11.78 is approximately 12 cubic

    asked by math on January 23, 2014
  91. calculus

    At the instant when the radius of a cone is 3 inches, the volume of the cone is increasing at the rate of 28.27433388 cubic inches per minute. If the height is always 3 times the radius, find the rate of change of the radius at that instant?

    asked by joseph on December 30, 2010
  92. calculus help please

    At the instant when the radius of a cone is 3 inches, the volume of the cone is increasing at the rate of 9 pi or 28.27433388 cubic inches per minute. If the height is always 3 times the radius, find the rate of change of the radius at that instant?

    asked by philip on December 30, 2010
  93. Math

    The volume of a rectangle prism with a square bases is 5880 cubic inches and it's height is 30 inches. Find the side length of the square base? 5880\30 = 196 square = side length of 14

    asked by Jake on April 2, 2015
  94. Algebra

    you trim a large square picture so that you could fit it into a frame. you trim 3 inches from the length and 2 inches from the width. the area of the resulting picture is 56sq in what was the perimeter of the original large square picture?

    asked by Jennifer on March 12, 2013
  95. MATH

    Air pressure at sea level is 30 inches of mercury. At an altitude of h feet above the, air pressure, P, in inches of mercury, is given by, P =30e^(-3.23x10-5h) a)Find th equation of the tangent line at h=0. b)A rule of thumb is given by travelers is that

    asked by FARJANA on August 7, 2015
  96. Algebra

    Find a table or other rectangular object and measure the length width and perimeter use feet or inches as your unit of measure express the in terms of the width

    asked by MissMoe on February 21, 2012
  97. math

    1. Mandy kept track of the trade-in value of a collector’s coin for several months through February of this year. She determined the line of best fit for the data was y = 4x + 12, where y is the trade-in value, in dollars, x months after February of this

    asked by kelsey on May 23, 2014
  98. chemistry

    Estimate the fraction of of unoccupied atomic sites in lead (Pb) at a temperature 10K below its melting point. DATA: Vacancy Fraction, nv/N T (degrees C) 1.8*10-7 100 7.2*10-6 200 Express your answer in terms of vacancy fraction, nv/N:

    asked by ssss on April 27, 2013
  99. Chemistry

    Estimate the fraction of of unoccupied atomic sites in lead (Pb) at a temperature 10K below its melting point. DATA: Vacancy Fraction, nv/N T (degrees C) 1.8*10^-7 100 7.2*10^-6 200 Express your answer in terms of vacancy fraction, nv/N:

    asked by Anonymous on April 25, 2013
  100. Calculus Help Please!!!

    If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a proper fraction that is completely simplified as much as possible.

    asked by Tanya on April 8, 2014