Questions Asked on
March 29, 2017

  1. Physics

    In a simple machine, the energy input is 120j. If the efficiency of the machine is 80%. Calculate the energy output

    asked by Gloria
  2. Chemisty

    Calculate the Volume occupied by 1.5 moles of an ideal gas at 25 degrees Celsius and a pressure of 0.80 atm. (R= 0.08206 L atm/(mol*K). I've tried using the ideal gas law: PV=nRT but i can't seem to get where I am getting lost. V=(1.5mol)(0.08206 L

    asked by Kimberly
  3. English--quick question

    Is disbelievement a valid word? if not, what word could I use instead? It is being used as a noun in this context: The disbelievement of the people...

    asked by Angeli
  4. Math

    My homework says "A circle is divided into 9 equal parts.Why is the measure of the angle?"I need help i dont get it!

    asked by Lilly
  5. physics

    Water has a specific heat of 4.186 J/g°C. How much heat is required to increase 10.0 g of water from 25.0°C to 30.0°C?

    asked by lura
  6. Math

    A muffin recipe calls for a ratio of 5 cups of flour to 2 cups of sugar. For each cup of sugar that is used, how many cups of flour are needed?

    asked by Alexis
  7. MA240 Please help

    An artifact originally had 16 grams of carbon-14 present. The decay model A = 16e -0.000121t describes the amount of carbon-14 present after t years. How many grams of carbon-14 will be present in 5715 years? A. Approximately 7 grams B. Approximately 8

    asked by sandra
  8. Precalculus

    If f and g are functions of time, and at time t = 3, f equals 8 and is rising at a rate of 3 units per second, and g equals 5 and is rising at a rate of 8 units per second, then the product fg equals __ and is rising at a rate of __ units per second. I got

    asked by Amanda
  9. MATH

    A cube has a volume of 27 cubic units. What is the length of the side of the cube? I don't understand how to get the answer for this question!! Does it mean one side or all sides? I know that 27 / 4 = 6.75 but I don't understand if it means all sides or

    asked by kiana
  10. MATH

    Two buses leave the same station at 8:00 pm. One bus travels north at the rate of 30 kph and the other travels east at 40 kph. How many kilometers apart are the buses at 10 pm?

    asked by XIAN
  11. physics

    a stone attached to the end of elastic string is whirled around in a circular path of radius 20cm if the stone makes 15 complete revolution in 5 seconds, calculate its angular and linear velocities.

    asked by isah a
  12. Math

    To get a driver's license, an applicant must pass a written test and a driving test. Pasts records show that 80% of the applicants pass the written test and 60% of those who have passed the written test pass the driving test. Based on these figures, how

    asked by Ava
  13. Chemistry

    What is the ratio of rate constants at 305k and 300k if the activation energy of a reaction is 58.3kJ/mol

    asked by Fouzia
  14. Maths

    The temperature at 12 was 10 degree above zero . If it decreases at the rate of 2 degrees per hour, what was the temperature at 2 afternoon?

    asked by Anonymous
  15. economics

    Given demand curve of the monopolist :Q=30-0.3P,& given the cost function C=2Q2+20Q+10, a)find the profit maximizing level of output &price b)determine the max possible profit. c)check for the 2nd order condition.

    asked by jara
  16. SS

    because of the treaty of tordesillas the language and background of brazil are _____.

    asked by Savanna Reed
  17. physics

    There are two charged particles. They exert an electrostatic force of 10 N on each other. Suppose the distance between the two particles is increased to five times the original distance. What will the magnitude of the force?

    asked by iowa
  18. Science

    For an organism that has a diploid number of chromosomes of 12, give the number of chromosome/chromatid copies at the end of the following cell-cycle phases: a) G2 phase b) Meiosis I metaphase c) Meiosis II telophase

    asked by Sam
  19. American gov 1 question answer check

    12. The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people. –Tenth Amendment This amendment is an example of which of the following? (1 point) prior

    asked by Anonymous
  20. chemistry

    metals with 8-hydroxyquinoline, C9H7NO. After weighing the mixed precipitate, the precipitate is dissolved and the amount of 8-hydroxyquinoline determined by another method. In a typical analysis, a 127.3 mg sample of an alloy containing iron, manganese,

    asked by Anonymous
  21. Math

    At a professional sports game, T-shirts are shot out of a small cannon into the crowd. Suppose a T-shirt is shot from 1 meter off the ground with an initial upward velocity of 20 meters per second. The height of the path of the shirt, in meters, is

    asked by Max
  22. Math

    Sam ordered 1/2 of a sandwich. He only ate 1/2. How much of the whole sandwich did he eat?

    asked by LaShaun
  23. gerunds

    Write the gerund phrase(s) in the sentences below. label each one subject, direct object, predicate noun, or object of a preposition. 1. Camping and fishing on the Isleta Reservation are popular tourist activities. Camping and fishing on the Isleta

    asked by plz check
  24. Algebra 2

    Find the exact coordinates of the points on a circle of radius 12.5 at an angle of 180°

    asked by Lia
  25. Mathematics

    True / False: The Plurality-with-Elimination Method sometimes violates (i.e. does not always satisfy) the majority criterion. 1. False because the plurality-with-elimination method always requires the winner to have the majority of votes. 2. True because

    asked by Gaby
  26. Chemistry

    How many grams of lithium are required to completely react with 61.9 mL of N2 gas at STP

    asked by Maria
  27. social studies

    Areas of Mexico that can support agriculture are most affected by variations in ? 1) altitude 2) longitude 3) attitude 4) animal species I think altitude

    asked by JAMIE
  28. math

    Owen and Ethan have $175 together. How much money does each of them have if Ethan has $33 more than Owen?

    asked by Anonymous
  29. math

    The illustration at right shows a rectangular box, three of whose edges coincide with the coordinate axes, and one of whose vertices is (3, 6, 4). Give an equation for the plane containing the front face of the box. Do the same for the top and right faces.

    asked by Grace
  30. Math

    A fair charged $2.50 admission for adults and a dollar for children. The receipts for 1 day were $1951 on 1300 paid admissions. How many adults attended the fair that day?

    asked by HELP URGENT
  31. Geometry

    I really don't understand this.... You want 12feet to equal 9inches on the blueprint. What scale factor must you use to create an accurate blueprint?

    asked by Kimberly
  32. physics

    There are three charges on a line. Charge A has 6e-07 C and is located at x=0. Charge 1 has 2e-06 C and is located at x = 1 m. Charge B has -5e-05 C and is located at x = 4 m.

    asked by iowa
  33. American gov

    But freedom to differ is not limited to things that do not matter much. That would be a mere shadow of freedom. The test of its substance is the right to differ as to things that touch the heart of the existing order. . . . If there is any fixed star in

    asked by Anonymous
  34. Math

    If each cube represents 0.25 in3, what is the volume of the prism? A) 6 in3 B) 12 in3 C) 48 in3 D) 75 in3 I am not really goo with these, but I think the answer might be b. Please give me the explanation. Thank you

    asked by Becky G ( P.S. Not the celeb)
  35. Math

    What are the like terms in this expression? 9a - 3b + 4ab A) 9a and -3b B) 9a and 4ab C) 9a, -3b, and 4ab D) no like terms I think it is d.

    asked by Ashley
  36. American gov

    i know i'm posting a lot but i just wanna be sure. my answer is b 14. Read the following excerpt from the Supreme Court’s ruling in Stanley v. Georgia. The makers of our Constitution undertook to secure conditions favorable to the pursuit of happiness .

    asked by Anonymous
  37. math

    A set of data is shown below. x: –1 0 1 2 3 4 5 y: 3 7 5 6 7 8 Using a line of best fit, what is the value of the residual for the data at x = 2? Round your answer to the nearest thousandth. I dont remember line of best fit if you could please explain

    asked by james
  38. algebra invers mathod

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

    asked by usama
  39. PE

    your digestive system has three main functions:digestion, absorption and elimination. in which organ dose absorption begin? a. mouth b.stomach c.(small intestine) d.gallbladder

    asked by Help I need somebody not just anybody
  40. social studies

    What use was made of this order, which set up military areas where the Secretary of War controlled who would enter the place, who would leave or stay, and who was excluded?

    asked by Anonymous
  41. math

    A data set is shown below. x y 1 6.00 2 5.04 3 4.23 4 3.56 5 2.99 6 2.51 7 2.11 Using an exponential best-fit model, what is the residual when x = 1. Round your answer to the nearest hundredth. This is the problem i dont understand line of best fit i dont

    asked by james
  42. Math

    A salesperson at a furniture store earns a 3% commission on all sales. How much commission does the salesperson earn on a $1400 sale? I think it is $420.

    asked by R2D2
  43. MATH URGENT HELP!

    you put 5,000 in an account that is compounded quarterly. the annual interest rate ,r, is 4%. how much will be in the account after 10 years?

    asked by Josh
  44. Math

    Equivalent Ratios x y 3 4 9 ? 18 24 What number is missing from the table of equivalent ratios? A) 10 B) 12 C) 15 D) 16 i think it is 16 or 12

    asked by Ashley
  45. American gov

    16. What ruling did the Supreme Court make regarding flag burning in Texas v. Johnson? (1 point) It is legal to burn flags other than the U.S. flag, but burning an American flag is not free speech because it affects public morale. Burning any sort of flag

    asked by Anonymous
  46. Social Studies

    After reading more text I changed my answers on these two 1."Immigrants who arrive in american cities are poor and frightened. They are helped to find jobs and housing. There new comers should show their gratitude at voting time."Use this statement to

    asked by Reeses
  47. Social Studies

    I really need help on my quiz can u plz help!!

    asked by Sweet tea
  48. Math

    |-10| + |5| A) -15 B) -5 C) 5 D) 15 I think A is the answer.

    asked by Ashley
  49. American gov

    17. The requirements for libel detailed in New York Times v. Sullivan protect which principle? (1 point) equal protection of the law right to criticize the government separation of church and state judicial review as i'm researching i see protection a lot.

    asked by Anonymous
  50. Math

    Now I really need help with this one because every time I think it is one answer it ends up wrong. Identify the question that is NOT statistical. A) According to the rules, how many swimmers are on a team? B) What were the times of the top five swimmers in

    asked by Ashley
  51. biology

    if there is no colonies on the wild type or lysate or ADP-6only plates, did you obtain an approximate 10x-fold change in colony numbers between the different dilutions? did you expect this? pls help

    asked by silvia
  52. Math - Mean Value Theorem

    Suppose f(x)=αx^2+βx+γ is a general quadratic polynomial with α≠0 and let [a,b] be any interval. According to the Mean Value Theorem there is at least one number c such that f(b)−f(a)=f′(c)(b−a). In this particular case the number c is unique

    asked by Anonymous
  53. math

    What is the product of the complex numbers (-3i+4) and (3i+4)? I've forgotten how to do this...

    asked by Ava
  54. Chemistry

    What is the hydrogen ion concentration of a 0.22 M hypochlorous acid solution with Ka = 3.5E-8? The equation for the dissociation of hypochlorous acid is: HOCl(aq) = H+(aq) + OCl-(aq). I keep getting 3.60 as the concentration, but that is the wrong answer.

    asked by Lynn
  55. chemistry

    How do you rationalize an infrared spectrum of salicylic acid and aspirin? How do you know which is which?

    asked by Nicole
  56. science

    Where are the major zones of volcanism? Thanks!

    asked by Katie
  57. Science

    Identify the benefits that your space mission might provide for modern society. Explore the possibility of connecting your space mission with satellites that are already gathering information as they orbit Earth. i neeeeeeeeed help

    asked by homie
  58. algebra

    6 x, when x = 7 Evaluate

    asked by Amber
  59. please help

    -9.4(z-8)-4.1=5(z+2.5)-5.9 z= z= (asking for rounded 4 decimal points)

    asked by Carlos
  60. financial securities

    Cat Bonds An insurance company has sold insurance to cover damage that arises from hurricanes in the South Texas area. If a hurricane occurs, the insurance company is faced with losses as it pays out claims. The magnitude of the losses will depend on many

    asked by sam
  61. Algebra

    Can you guys help me solve this problem I dont know why I cant get it. Thanks. Solve for x. (26000-x)2813.95 + x(314.73)=26000(640.2)

    asked by Daniel
  62. math

    Camila wanted to learn cooking so that she could help out at home. In the cooking class, 10 students shared 6 8 kg of sugar equally. How much sugar would each student get? (Please round off your answer to the nearest whole number if needed. Leave your

    asked by koo
  63. physics

    a man weighs 162 pounds, and is 69 inches tall. his forearm is parallel to the ground. he holds an 8 pound weight in his hand. the biceps has an angle of insertion of 85 degrees with a distance of 1.4 inches at insertion. the system is equilibrium. what

    asked by jh
  64. writing

    ''afford taking us''

    asked by irine
  65. bussiness

    1.Please calculate how many cartons (rounded number) a 20ft GP Container can accommodate respectively according to the information above. 20ft GP container:cartons

    asked by Jane
  66. calculus

    Evaluate the integral. from 0 to π/2 sin^3(θ)cos^5(θ) dθ

    asked by alice
  67. algebra

    8 x + 4 = 68

    asked by Amber
  68. Maths

    The sum of money that will produce ₹1770 as simple interest in 7.5 year as 8% at per annum is how much

    asked by Anonymous
  69. SS

    Which of the following statements best describes Mexican history after independence? A:Mexico has been at war or in a state of revolution from independence to today. B:social class has not been an important factor in determining opportunity. C:many

    asked by Evie
  70. Maths

    Fifty people said they liked apples or bananas or both. Forty percent of people like apples and 70% of the people like bananas. What percentage of people like only apples?

    asked by Jasmine
  71. Chemistry

    An ionic compound dissolved in water, separated into its ions according to the following equation: MA2 (s)--> M^+2 (aq) + 2A^- (aq). If the ground state electron configuration of the two ions are similar to those of neon. Ne, and of Kr, the two elements in

    asked by Lil
  72. math

    Time Height (Weeks) (CM) 1 1 2 4 3 6 4 9 5 11 ~Ok i have this problem and its a correlation coefficient, There is a lot of questions but how would you find if its linear or exponential.

    asked by Ed
  73. Decroly

    If n represents the amount of songs stored on an MP3 player , analyze the meaning of the expressions n + 7, n - 2 , 4 n and n \2

    asked by Anonymous
  74. physics

    A steel wire is used to lift heavy object. The cable has a diameter of 14.25 mm and an initial length of 33.5 m. If the cable stretches 2.50 mm, what is the mass of the heavy object? Use 20.0 x 10^10 Pa for Young’s modulus for steel. Give your answer in

    asked by Idali
  75. Math (Mrs. Sue help!!!)

    Solve the inequality. d - 6 > -4 A. d > -2 B. d > -10 C. d > 2 D. d > 10

    asked by ShingekiNoMathClass
  76. Chemistry

    What should the molar concentrations of benzoic acid and sodium benzoate be in a solution that is buffered at a pH of 4.75 and has a freezing point of -2.0 ∘C? (Assume complete dissociation of sodium benzoate and a density of 1.01 g/mL for the solution.)

    asked by Albert
  77. Chemistry

    25.0 g of potassium acetate (CH 3 COOK) are dissolved in 1.00 L of water. Calculate the pH of this solution. (PKa = 4.76 for CH3COOH)

    asked by Chex
  78. English

    1. I need a solid T-shirt. 2. I need a plain T-shirt. 3. I need a solid-color T-shirt. 4. I need a self-color T-shirt. 5. I need a one-color T-shirt. 6. I need a unicolor T-shirt. ---------------------- Are they all the same in meaning? Which ones are

    asked by rfvv
  79. math

    ice in a refrigerator melts at rate of 3 kg per hour. the temperature outside is 27°c. find the minimum power output of a motor used to drive the refrigerator,which just prevents ice from melting. latent heat of ice = 80 cal/g,J=4.2 joule/cal, 1 h.p = 746

    asked by rahul
  80. Algebra

    what is the cube root of 14 in radical form

    asked by Susie
  81. Physics - Capacitance

    In the case of having two plates of a capacitor, in the formula for capacitance C = (Epsilon)(A/d), is A the sum of the areas of each plate or just the area of one plate? And if it is the latter, then it can be assumed that both plates have the same area,

    asked by Kid
  82. chemistry

    What is the symbol equation of iron nails with copper sulfate solution.

    asked by derik
  83. ELA

    Jacob is writing a report about the benefits of running. He is looking for sources to support his opinion that running has health benefits. Which choice would be LEAST LIKELY to provide him with information to support his opinion? A) a health magazine B) a

    asked by PJ
  84. Trigonometry

    Triangle ABC is given where the measure of angle a is 33°, a=15 in., and the height, h, is 9 in. How many triangles can be made with the given measurements? Explain your answer.

    asked by Sam
  85. Math

    I help solving these out can someone work through them with me???? 19. WorkPad Note: In questions 19-21, remember to show all of the steps that you use to solve the problem. Be sure to use the text box where the question mark (?) first appears to show your

    asked by Sunny Dreams <3
  86. math

    A prism is completely filled with 96 cubes that have edge length of 12 cm. What is the volume of the prism?

    asked by jj
  87. Math

    Marissa bought 6 fewer pints of soda then orange juice.how many cups of soda did she buy

    asked by Keyliah
  88. Science

    A student adds 5 g each of sand, sugar, and salt to 50mL of water. Did he make a solution? Explain.

    asked by Fabricio
  89. Social Studies

    1. Which river helped Rome grow and expand? A. Tigris

    asked by Lala
  90. Math

    Match the expressions with thier equivalent equations in the columns. List A: List B: 6x+12 6(1+x) 6+6x 6x-6 6(x-1) 6(x+2) Fill in the blank: The expression 6x+12 is equivalent to the expression __________ The expression 6+6x is equivalent to the

    asked by Nat
  91. social studies

    Mexico is building a stronger workforce by? 1} holding free election 2)permitting remissions 3)eliminating competition 4)investing in education I think #1

    asked by Evie
  92. physics

    An electron and a proton have charges of opposite sign, but the magnitude of their charges has the same value of 1.60 10-19 C. Suppose the electron and proton in a hydrogen atom are separated by a distance of 4.30 10-11 m. What are the magnitude and

    asked by iowa
  93. ECONOMICS

    CALCULATION 4 DEMAND AND SUPPLY FUNCTION FOR A COMMODITY ARE GIVEN QD=4P+30 AND QS=2P+6

    asked by OLASUPO SAMSON
  94. Punakha central school. Bhutan

    Dissociation constand of propanoic acid is 1.76. Determine degree of dissociation of P ropanoic acid in 0.2molar in aqueous solution?

    asked by dorji
  95. College Chemistry

    Calculate the pH at the equivalence point in the titration of 55.0 mL of 0.180 M methylamine(Kb = 4.4 × 10−4) with 0.330 M HCl.

    asked by Emily
  96. Physics

    a boy whose weight is 600 N runs up a flight of stairs 10 m high in 12 second .What is his average power?

    asked by Saleem
  97. Physics

    a . rather then taking the elevator a a 65kg student decided to climb 276m vertical height of stairs to the observation deck of the effiel tower. How much work does the student do against gravity climbing to this level? b. It's estimate that 1kg of fat

    asked by tristan
  98. Math

    A recipe requires 3/4 cups of nuts for 1 cake. Enter the maximum number of cakes that can be made using 7 1/2 cups of nuts

    asked by jackyrah
  99. probalitity

    Let Θ1 and Θ2 be some unobserved Bernoulli random variables and let X be an observation. Conditional on X=x, the posterior joint PMF of Θ1 and Θ2 is given by pΘ1,Θ2∣X(θ1,θ2∣x)= 0.26, if θ1=0,θ2=0, 0.26, if θ1=0,θ2=1, 0.21, if θ1=1,θ2=0,

    asked by akg
  100. Calc

    The time interval T, in minutes, between patient arrivals in an emergency room is a random variable with exponential density function p(t) = 0:125e^-.125t. What is the average time between patient arrivals? What is the probability of two patients arriving

    asked by Alice
  101. Algebra

    At noon, Professor Simon has a petri dish with 10,000 cells of Bacteria A. In another petri dish, he has 33,000 cells of Bacteria B. Every hour, Bacteria A grows by 8%. Every hour Bacteria B cells die off, decreasing the number of cells by 6%. After how

    asked by Lily
  102. Physics

    An pie plate of radius 0.12 m spins and accelerates at a constant rate of 13 rad/s. What was its angular acceleration? R=0.12. W1=13 W2=29 t=5.4 (29 -13) /5.4= 2.96rad/s is the answer I calc but the answer key had 2.8 rad/s

    asked by Koko
  103. chemistry help anyone

    use Rydbuz equation to calculate the wavelength of the third line in the paschen series of the hydrogen spectrum.give ur answer in Nm. RH=2.18 * 10^-18j, H=6.63 * 10^-34J. Step plz

    asked by weryiyemi
  104. maths probability plz help

    The Probability that a USA-based business man goes to paris by car is 0.6 and by air is 0.4. If he goes by car, the probability that he will be early for his appointment is 0.3 while if he goes by air, the probability he'll be early is 0.65 (i) what is the

    asked by matt
  105. Math- PLEASE HELP!!

    At noon, Professor Simon has a petri dish with 10,000 cells of Bacteria A. In another petri dish, he has 33,000 cells of Bacteria B. Every hour, Bacteria A grows by 8%. Every hour Bacteria B cells die off, decreasing the number of cells by 6%. After how

    asked by Lily
  106. math

    what is 8,903.045 in 100s place

    asked by joe
  107. mathematics sequence need help

    4, 10, 16, 22,... are the A.P obtained from the 1st differences of a Quadratic Sequence with a 1st term of 3. Determine the formula for the sequence & hence its 25th term plz show step

    asked by adn
  108. math

    Santiago, a park ranger, was trying to estimate the number of catfish in a lake. He randomly caught 32 catfish, tagged them, and let them go. Six months later, he surveyed fisherman at the lake about how many catfish they caught that were tagged. His

    asked by Lucy
  109. chemistry

    Iron can be determined gravimetrically by precipitating as Fe(OH)3 and igniting to Fe2O3. The sample to be analyzed is weighed and transferred to a 400-mL beaker where it is dissolved in 50 mL of H2O and 10 mL of 6 M HCl. Any Fe2+ that is present is

    asked by Anonymous
  110. Science

    Two trains are traveling towards each other, starting 100 kilometers apart. One train travels at 40 kilometers per hour while the other travels at 60 kilometers per hour. The plane starts flying at 90 kilometers per hour, starting from the location of the

    asked by Edwin
  111. calculus

    It is a dark clear night. The air temperature is 15◦ C. A body is discovered at midnight. Its temperature is 23◦ C. One hour later, the body has cooled to 20◦ C. Use Newton’s law of cooling to determine the time of death.

    asked by mable
  112. Fractions

    Mother saved 7/8 of a pie for dinner. Her son came home from school and ate the pie. How much pie is now left for dinner

    asked by Maricela
  113. Physics

    A Micro –Hydro turbine generator rotor is accelerating uniformly from an angular velocity of 610 rpm to its operating angular velocity of 837 rpm. The radius of the rotor is 0.62 m and its rotational acceleration is 5.9 rad/s2. What is the rotor’s

    asked by Kiki
  114. Advanced Functions

    assume the function f(x) and its inverse f-1(x) are both defined for xer. give a geometric interpretation of the composite function y=f(f-1(x))

    asked by Sara
  115. Grammar

    Replace with vs. Replace for? 1. Replace white rice with brown rice. Does this mean use brown rice instead? 2. Replace white rice for brown rice. Does this mean use white rice instead?

    asked by Vivian
  116. Math

    Is the decimal 2.628 considered to be statistically significant?

    asked by lisa
  117. mushi

    Solve for d Spherical triangle whose parts are C = 89, a = 70°, b = 60° please show me ste

    asked by adn
  118. Math

    For which value of x is the equation 2(1 + x) = x + 3 true? A) 1 B) 2 C) 3 D) 4 I think it is c.

    asked by PJ
  119. Math NEED HELP URGENT

    At noon, Professor Simon has a petri dish with 10,000 cells of Bacteria A. In another petri dish, he has 33,000 cells of Bacteria B. Every hour, Bacteria A grows by 8%. Every hour Bacteria B cells die off, decreasing the number of cells by 6%. After how

    asked by Lily
  120. Chemistry

    0.25 mol dm-3 solution of hydrochloric acid?

    asked by Rain
  121. American gov

    Check my answers pleaseee i have a star * by my answer 4. Rights are not absolute. Which of the following examples would support this statement? Select all that apply. (3 points) ( this one has 3 answers) A citizen criticizes public policy. A man yells

    asked by Anonymous
  122. physics /torque

    a door is fixed with the support the length of the door is 3.3foot. the handle is attached at o.3foot. from a side opposiite to the side of hinches. it is opened with the torque of 5Nm. how much force is needed

    asked by rabia
  123. Math

    A swimming pool and deck are built in a rectangle with length 40 ft and width 18 ft. If the pool itself is 320 square feet, what is the area of the deck itself? A) 320 square feet B) 400 square feet C) 480 square feet D) 560 square feet I think it is c.

    asked by R2D2
  124. Technology

    Can someone help me write a 5 paragraph essay on microsoft word and how we use it and stuff? if you could that would be amazing! thanks!!

    asked by Megan
  125. Math

    Is x+3=2y and x=2y-3 have infinitely solutions or one solution or no solution

    asked by Math
  126. chemistry plz help help

    Use Rydbuz equation to calculate the wavelength of the third line in the paschen series of the hydrogen spectrum.give ur answer in Nm. RH=2.18 * 10^-18j, H=6.63 * 10^-34J.

    asked by weryiyemi
  127. ss

    I need help with this! thanks What did satraps do?

    asked by Help!