teresa

Popular questions and responses by teresa
  1. science

    There are three sources of resistance in a parallel circuit. Two of them are rated at 20 ohms, the other at 10 ohms. What is the circuits total resistance?

    asked on July 5, 2010
  2. ALGEBRA

    Find the choice below which gives a first step in solving the given system of equations by the addition method 6x - 5y = 12 x + y = 3

    asked on February 23, 2012
  3. physics

    A thin spherical shell of mass 4.00 kg and diameter 0.200 m is filled with helium (density ρ = 0.180 kg/m3). It is then released from rest on the bottom of a pool of water that is 4.00 m deep. (a) Neglecting frictional effects, show that the shell rises

    asked on January 26, 2012
  4. Statistics

    Bookstore has a website for which 90 percent of their book sales are to out of state customers and not subject to the collection of sales tax . The sample proportion of all sales to out of state customers from samples of size 100 will vary in repeated

    asked on April 3, 2016
  5. algebra

    Joe's electric made 17 customer calls last wk and 23 calls this week. How many calls must be made next week in order to maintain an average of at least 21 calls per week for the three week period? At least blank calls must be made to maintain an average of

    asked on May 20, 2011
  6. geometry

    What is the probability of 2 randomly chosen angles being congruent in a general triangle?

    asked on March 22, 2010
  7. chemistry

    Which of the following quantum numbers describes the shape of an orbital? A) principle quantum number (n) B) magnetic quantum number (ml) C) spin quantum number (ms) D) Schrodinger quantum number (S) E) (azithmal) angular momentum quantum number (l)

    asked on November 14, 2011
  8. math

    from least to greatest, the perfect square factors of 3150 other than 1 are?

    asked on September 25, 2017
  9. Early Childhood

    Mrs. Bates watched David work a puzzle that he had chosen from the ones she put on the table. She listened and commented when David made guesses at the correct location for the pieces. This is an example of a/an __________ activity. A. structured B.

    asked on March 12, 2014
  10. Chemistry

    Iron has density 7.87 g/cm3. If 52.3 g of iron is added to 74.5 mL of water in a graduated cylinder, to what volume reading will the water level in the cylinder rise? mL

    asked on November 12, 2014
  11. math

    find the height in feet of a ball after 6 seconds in the air. after one second the ball is 148 feet in the air; after 2 seconds it is 272 feet in the air

    asked on June 16, 2014
  12. precal

    Find all solutions of the equation in the interval , 02π . =2sin2x−2cosx Write your answer in radians in terms of π . If there is more than one solution, separate them with commas.

    asked on August 8, 2016
  13. Chemistry

    25.00 mL of heavy water (D2O where D is a hydrogen with a neutron in its nucleus) at 20 degrees C was pipetted into a 37.234 g beaker. The final mass of the beaker was 64.859 9 a- what is the density of heavy water at 20 degrees C b-The density of normal

    asked on September 20, 2012
  14. calculus

    A water trough is 8m long and its cross-section is an isosceles triangle which is 60cm wide at the top, and the height is 60cm. The trough is not full. Give an expression for V, the volume of water in the trough in cm^3, when the depth of the water is d

    asked on October 15, 2017
  15. math

    Mrs. Kong uses 1/3 of a stick of butter in a pie. She uses 5/8 of the remaining butter in a cake. What fraction of the stick of butter is left

    asked on January 17, 2017
  16. math

    michelle has some stamps. Her sister has half as many stamps as does. They have 1080 stamps in all. Home many stamps does Michelle have

    asked on October 19, 2016
  17. Maths

    A rectangle has an area of 36m2 list all possible lengths of sides using while numbers it could have

    asked on October 16, 2016
  18. Cincinnati state

    The perimeter of a volleyball court is 180 feet, anditswidth is 40 feet Find the length of the volleyball court

    asked on September 24, 2015
  19. Chemistry

    Merchants usually sell small nuts, washers, and bolts by weight (like jelly beans!) rather than by individually counting the items. Suppose a particular type of washer weighs 0.128 g on the average. What would 130. such washers weigh?

    asked on December 5, 2014
  20. chemistry

    Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O?

    asked on October 27, 2014
  21. Chemistry

    How many atoms of nitrogen are in 3.00g of N2O5?

    asked on October 27, 2014
  22. math

    the following investments require table factors for periods beyond the table, create the new table factors AND present value $31,000 (compound amount) time period is 50 years nominal rate is 5% and interest compounded annually thanks

    asked on May 14, 2014
  23. Math 208

    Rectangle Dimensions: The length of a rectangle is 7 inches longer than the width. If the perimeter of the rectangle is 62 inches, find the measures of the length and width.

    asked on March 3, 2013
  24. physics

    A storage tank of negligible mass and 30 m high is filled with gasoline

    asked on January 26, 2012
  25. finance

    Calculate the after-tax cost of preferred stock for Bozeman-Western Airlines, Inc., which is planning to sell $10 million of $6.50 cumulative preferred stock to the public at a price of $50 a share. Issuance costs are estimated to be $2 a share. The

    asked on February 25, 2011
  26. statistics

    In a population of exam scores, a score of X = 48 corresponds to z = +1.00 and a score of X = 36 corresponds to z = -0.50. Find the mean and standard deviation of the population.

    asked on March 17, 2010
  27. History

    Why were the members of the Third Estate dissatisfied with their way of life under the Old Regime?

    asked on November 5, 2019
  28. math

    Julian and Stacey needed 10 liters of water to fill a tank. Stacey filled the tank with 3 11/12 liters of water. Julian poured 1 2/5 liters less than Stacey into the tank. How much more water is still needed to fill the tank?

    asked on December 11, 2018
  29. math

    A bus driver filled up 7/8 of her fuel tank for a trip. She used 6/7 of the fuel by the end of the trip. The capacity of her tank is 70 gallons. How much fuel did she use for the trip?

    asked on March 7, 2018
  30. math

    you have 120 pieces of fabric to make a blanket. each piece of fabric is a square with a side length of 6 inches. you use as many pieces of fabric as possible to screat a square blanket. What is the area of the blanket? How many pieces of fabric are left

    asked on September 25, 2017
  31. math

    what is the lowest common multiple of 32 and 40

    asked on September 21, 2017
  32. math

    a music store gives every 20th customer a $5 gift card. Every 50th customer gets a $10 gift card. which customer will be the first to receive both types of gift cards?

    asked on September 21, 2017
  33. math

    a music store gives every 20th customer a $5 gift card. Every 50th customer gets a $10 gift card. which customer will be the first to receive both types of gift cards?

    asked on September 21, 2017
  34. math

    what is the lowest common multiple of 32 and 40

    asked on September 21, 2017
  35. math

    Zach's rope is 15 feet long. He cuts it into three pieces. 1st piece is 3.57 ft longer than the 2nd piece. 3rd piece is 2.97 feet longer than the 2nd piece. How long is third piece?

    asked on February 12, 2017
  36. math

    Ben sells 7/12 of the pottery he made. Of the remaking pottery, 3/5 are vases and the rest are bowls. What fraction of all the pottery is the unsold bowls?

    asked on January 17, 2017
  37. math

    justin spends 7/9 of his homework time on math and social studies. He spends 4/7 of this time on math. What fraction of the total time does he spend on social studies?

    asked on January 17, 2017
  38. Income tax

    Steve and Sue are married with three dependent children. Their 2015 joint income tax return shows $389,000 of AGI and $60,000 of itemized deductions made up of $30,000 of state income taxes and $30,000 of charitable contributions.

    asked on November 21, 2016
  39. math

    James is painting his 10 by 8 foot bedroom wall that contains a 2 by 3 foot window. How many square feet of wall does he need to paint

    asked on November 15, 2016
  40. math

    how to write the expression 25 less than 12 groups of 15? 25-12(15)... is this correct

    asked on October 18, 2016
  41. math

    The mass of a box with 6 tennis balls is 2 kg 40 g. The same box with 10 tennis balls is 3 kg 160 g. What is the mass of the empty box?

    asked on April 26, 2016
  42. math

    Grandpa Mick opened a pint of ice crew. He gave his youngest grandchild 1/5 of the ice cream and his middle grandchild 1/4 of the remaining ice cream. Then, he gave his oldest grandchild 1/3 of the ice cream that was left after serving the others. Who got

    asked on March 16, 2016
  43. math

    ABCD is a rectangle of perimeter 48cm. AB=6 cm and CD=DE. What is the length of ABCD?

    asked on March 6, 2016
  44. Math

    in figure LM = 18 ft, KM=16 ft and KN=14ft what is the area of KLM

    asked on March 3, 2016
  45. Science

    How many traits are involved in a monohybrid cross? How many alleles are involved? What prevents the expression of a recessive allele? When gametes form, what happens to the alleles for each trait?

    asked on February 15, 2016
  46. MATH

    MAYA had $2740 in play money and Emily had $3560. Maya had to give some money to Emily. After that, Emily had 4 times the amount of play money as Maya. How much money did Maya have in the end? How much money did Emily have in the end?

    asked on October 22, 2015
  47. Chemistry

    According to his prelaboratory theoretical yield calculations, a student's experiment should have produced 1.41 g of magnesium oxide. When he weighed his product after reaction, only 1.33 g of magnesium oxide was present. What is the student's percent

    asked on December 6, 2014
  48. chemistry

    Can somebody please answer my question.

    asked on December 6, 2014
  49. Chemistry

    'calculate the mass in amu of 2.879 1023 xenon atoms'

    asked on December 6, 2014
  50. chemistry

    28.09 g of silicon contains 6.02 1023 silicon atoms. What is the mass in grams of 1.06 1025 silicon atoms? Can you help me please.

    asked on November 12, 2014
  51. chemistry

    Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68)

    asked on October 27, 2014
  52. Chemistry

    Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68)

    asked on October 27, 2014
  53. chemistry

    find the mass of water(H2O) needed to react with 150 grams of potassium(K)

    asked on October 27, 2014
  54. math

    this investment require table factors for periods beyond the table. create the new table factor AND the present value for $100,000 (compound amount) for 50 years at a nominal rate of 5 percent with interest compounded annually thanks

    asked on May 15, 2014
  55. Math

    Find the z-scores that bound the middle 55% of the standard normal distribution ____ small value _____ larger value

    asked on May 11, 2013
  56. college chemistry

    What is the ratio of KC2H3O2 and HC2H3O2 in a buffer with a pH of 5.25? Ka = 1.8 x10-5?

    asked on November 16, 2011
  57. chemistry

    Given the following reaction and enthalpy change, calculate the amount of heat for converting 100.4g of liquid water (18.02g/mole) to a vapor? delta H= +44kJ

    asked on November 3, 2011
  58. algebra

    A certain kind of animal weighs about 77 pounds at birth and gains 2 pounds per day for the first few weeks. Determine those days for which the animal's weight is more than 129 pounds. The animal's weight is more than 129 pounds when the animal is more

    asked on May 20, 2011
  59. geometry

    Triangle ABC has vertices A(-3,2) B(4.5) AND C(4,-1) Fin out wether the triangle is isosceles?

    asked on April 15, 2011
  60. finance

    When performing a capital budgeting analysis, interest expense included in the cash flows should be based on the current interest cost and not the historical cost of interest. Comment.

    asked on February 19, 2011
  61. algebra

    pricipal is30,000 rate of interest is three and five eigth time thirty years find amount in account .show me step by step how to solve

    asked on September 26, 2010
  62. Psychology

    What are the four key milestones in the development of cognitive psychology as a discipline?

    asked on June 27, 2010
  63. english

    explanation and description no child left behind

    asked on May 24, 2010
  64. trig

    What is the period, amplitude and phase shift for: y=2sin(3x-pi)

    asked on March 2, 2010
  65. COMM 215

    1. The following word group is a FRAGMENT: That movie, one of my favorites.

    asked on January 8, 2010
  66. psychology

    how does ms disrupts normal brain function?

    asked on October 10, 2009
  67. Math

    A ticket booth sold 446 tickets and collected $3,188 in ticket sales. Adult tickets are $9.00 and children tickets are $2.00. How many adult tickets were sold?

    asked on October 2, 2008
  68. finance (Check Answer plz)

    Following are rates of return on medical equip. company's stock and debt, and on the market portfolio, along with the probability of each state. State Prob. Ret.on Stock Ret.on Debt Ret.on Market 1 .1 3 8 5 2 .3 8 8 10 3 .4 20 10 15 4 .2 15 10 20 What is

    asked on April 21, 2008
  69. finance

    Securities A,B,C have the following; Sec. Exp.Ret. Beta A 10 .7 B 14 1.2 C 20 1.8 According to CAPM, what is the correct slope between security A&B? A&C?

    asked on April 21, 2008
  70. finance

    Following are rates of return on a medical equipment company stock, debt, and market portfolio, along with probablity of each state State Prob Ret.on Stock Ret.on Debt Ret.on Market 1 .1 3 8 5 2 .3 8 8 10 3 .4 20 10 15 4 .2 15 10 20 If the company's

    asked on April 21, 2008
  71. Pre algebra

    is 90.23 an irrational number?

    asked on December 6, 2019
  72. English

    To get in shape for a marathon, Shelby started running around the block a few times each morning.

    asked on February 27, 2019
  73. Pre-Algebra

    A(2,5), B(3,1)

    asked on January 31, 2019
  74. Math

    -5g - 6 for g = -2 A 4 B 16 C 10 D -13

    asked on November 2, 2018
  75. math

    Donald is hiring employees for his new small business. He expects to produce 6 units per employee, and he expects demand to be at least 36 units per day. He plans to pay each employee a yearly salary of $50,000 and has a budget of $400,000 per year to pay

    asked on March 22, 2018
  76. math

    serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

    asked on March 7, 2018
  77. math

    15(p-4+2)

    asked on October 30, 2017
  78. math

    THE DISTANCE BETWEEN EXIT 12 AND EXIT 13 IS 2.7 MILES. THE DISTANCE BETWEEN EXIT 13 AND EXIT 14 IS .9 MILES FARTHER THAN THE DISTANCE BETWEEN EXIT 12 AND 13. THE DISTANCE BETWEEN EXIT 13 AND 15 IS 6.8 MILES FARTHER THAN THE DISTANCE BETWEEN 12 AND 14. THE

    asked on October 16, 2017
  79. math

    The area of a rectangle is 3/5 square meter. The width is 2/5 meter. What is the length of the rectangle? How many times greater is the length that the width?

    asked on October 16, 2017
  80. math

    A chef has a 2 3/8 pound salmon filet. He slices the filet into 4 oz servings. How many pounds is each serving? How many 4-oz servings can the chef create from the filet. How many ounces of salmon are left over?

    asked on October 16, 2017
  81. math

    at a supermarket, pineapple juice sells at $1 per pint (16 oz). Greg wants to buy eighteen 40-ounce cans of pineapple juice from the supermarket. How much does he has to pay altogether.

    asked on October 12, 2017
  82. math

    (4-5y)-2(3.5y-8)

    asked on October 11, 2017
  83. math

    in a jewelry store, rings make up 5/9 of the inventory. Earrings make up 4/15 of the inventory. How many times greater is the ring inventory than the earring inventory?

    asked on October 9, 2017
  84. math

    4/9 divided by 2/3 divided by 5/6

    asked on October 9, 2017
  85. math

    you are making identical gift bags using 24 candles and 36 bottles of lotion. What is the greatest number of gift bags you can make with no items left over.

    asked on September 19, 2017
  86. math

    (7^2-9)x(6+4)^2

    asked on September 7, 2017
  87. science

    describe the relationship among energy absorption, heat energy, and temperature

    asked on September 5, 2017
  88. math

    6 - 17 - 4

    asked on August 30, 2017
  89. math

    -16 - (-12) + (-8)

    asked on August 30, 2017
  90. math

    The height of a picture is 4.3 feet when rounded to the nearest tenth of a foot. What is the shortest possible height of the picture. Give answer to 3 decimal places

    asked on May 8, 2017
  91. math

    six bags of baseballs weigh 0.5 kilograms each. The balls are then packed into 10 boxes. What is the total mass of the six bags of baseballs? What is the mass of each box? If each box costs $1.80, how much did the boxes cost altogether?

    asked on May 8, 2017
  92. math

    5/8 divided by y/9 = 1 1/8

    asked on April 25, 2017
  93. math

    at a parade, there are "m" women and 3 times as many men as women. There are 6,352 fewer children than men. Find the number of men and the number of children respectively in terms of m. If m = 7,145, how many peole are at the parade?

    asked on March 13, 2017
  94. Mathematics

    A ship sails 50 km on a bearing of 70 degrees. How far North is it from its starting position.

    asked on February 17, 2017
  95. math

    Amber has a piece of licorie that is 10 feet long. She cuts it into three pieces for her friends. The 1st piece is 4.25 feet longer than the second piece. The 3rd piece is 2.24 feet longer than the second. How long is the 3rd piece?

    asked on February 12, 2017
  96. math

    ned folded a set of origami figures. Of this set, 5/8 are cranes and 1/6 of the remainder are frogs. The rest are grasshoppers. What fraction of the origami figures are grasshoppers?

    asked on January 18, 2017
  97. math

    maggie has 20 ribbons. Of them, 2/5 are polka dotted ribbons. How many ribs are not polka-dotted?

    asked on January 11, 2017
  98. math

    there are six different kinds of fruit pies in a baker. Each pie is the same size and is cut into 8 equal slices. Mr. Javier buys a slice of each pie. How many pies did Mr. Javier buy altogether

    asked on January 11, 2017
  99. mixed numerals

    Yesterday, Joe's Snack Shack went through 8 bottles of ketchup. If they used 1/5 as much mustard as ketchup, how many bottles of mustard did they go through?

    asked on January 1, 2017
  100. math

    On Friday, Steven sold 4 pitchers of lemonade from his lemonade stand. On Saturday, he sold 1/3 as much lemonade as on Friday. How many pitchers of lemonade did Steven sell on Saturday?

    asked on January 1, 2017

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