Questions Asked on
November 28, 2016

  1. Language Arts

    1) An argumentative essay should present a clear thesis statement, provide strong evidence to support the thesis, and ______. A: address counterarguments B: repeat main points* C: include digital sources D: gather details 2) According to the Argumentive

    asked by Sunny
  2. SOCIAL STUDIES 7 GRADE

    1. Which group made up the majority of white Southerners? (1 point) planters capitalists middle class small farmers Use the table to answer the question. 2. Which is the most likely cause of the spike in cotton production in Mississippi in the mid­ 1800s

    asked by Tia Vazquez
  3. Algebra

    What do you call someone who pays back a loan Quickly? Algebra with pizzazz page 164

    asked by Sasuke
  4. Math

    what are the mean,median,mode, and range of the data set given the altitude of lakes in feet:-11,-28,-17,-25,-28,-39,-6,and -46? A. mean= -25; median= -26.5; mode= -28; range=40 B. mean= -25; median=-40; mode=-26.5; range=28 C. mean= -26.5; median= -25;

    asked by Embershy
  5. Technology

    In microsoft excel graphs are referred to as what? A. Sparklines B.ilustrations C.tables D.charts

    asked by Haley
  6. Math

    The bases on a baseball diamond are 27.4m apart. The pitcher pitches,and the batter hits a fly ball straight up 15m. What is the maximum angle of elevation of the ball to the nearest degree, as seen by the pitcher if he is standing at the center of the

    asked by Katie
  7. Math

    Given the data 21, 13, 13, 37, 13, 23, 25, 15: What is the outlier in the data? What is the mean with the outlier? What is the mean without the outlier? 13; 21; 17.6 37; 20; 17.6 37; 17.6; 20 13; 17.6; 21

    asked by Embershy
  8. History

    Why is urbanization associated with the industrial revolution? The expansion of family farms refocused the nation on agriculture •• The concentration of factories in cities brought job opportunities Settlers expanded the frontier west of the

    asked by Lola
  9. math

    What is a 15% tip on a meal that costs $38.40

    asked by hannah
  10. Language Arts

    1.)Knowing that the Latin root -equi- means "equal," choose the best meaning for the word equilateral as it is used in the sentence below. The box appears to be square, but I would have to measure its sides to prove that it is equilateral. A. equally

    asked by Helen
  11. math

    I need the answers to why did the banana go out with the prune. I already know the answer to the riddle i just need to know the answers to all the problems. Teachers i am a cheater, deal with it there are cheaters and i am one of them. P.S. I would like a

    asked by Hugh Mungus
  12. LA HELP!!!!

    PLZ HELP! 1. Part A In "All Together Now," Barbara Jordan's main purpose is to persuade readers that a tolerant society is best created by working on a small scale.*** inform readers of the recent history of the civil rights movement in the United States.

    asked by Agal
  13. Social Impact of Technology

    Which of these kinds of energy is a fundamental requisite for life on Earth? A. Electrical energy B. Solar energy C. Chemical energy D. Potential energy An -- C

    asked by Angela
  14. biology:cells

    which of the following is not true? a. ATP is formed during glycolyisis b. ATP contains less potential energy than ADP*** c. Plant cells generate ATP during cellular respiration d. ATP is used as a mobile energy carrier molecule by all cells which of the

    asked by Please check answers
  15. Social Studies

    As leader of the Republican Party, Lincoln was outspoken in his views on slavery and expressed them during the debates of 1858. Which of the following would best fit with his position? Compromise of 1850 Dred Scott decision (My Answer) Kansas-Nebraska Act

    asked by Betta Fish
  16. Science

    Why is photosynthesis an example of a chemical reaction, and why is it classified as endothermic? Help please

    asked by Jess
  17. MATH @Damon @ms. Sue

    Sam is observing the velocity of a car at different times. After three hours, the velocity of the car is 53 km/h. After six hours, the velocity of the car is 62 km/h. Part A: Write an equation in two variables in the standard form that can be used to

    asked by Bea
  18. Biochemistry

    How would you prepare 250ml of 0.2M sodium phosphate buffer of PH 6.4 if the following chemicals are available :dibasic sodium phosphate,monobasic sodium phosphate and 0.129M solution of NaOH. Assume that the pka1 pka2 pka3 of phosphoric acid are 2.12, 6.8

    asked by Quinn
  19. Chemistry

    Which of the following gases has the highest average speed at 400K? NO2 OF2 SO2 SF6

    asked by Kanye
  20. Latin

    1. !@#$%^& Romae iter faceres, multa nova vidisti. When you were on a journey in Rome, you saw many new things there. 2. !@#$%^& familia Graeca habitabant. When a family lives in Greece? 3. !@#$%^& septem filii Niobae interfecti essent, tamen superba

    asked by Cee
  21. Physics - Collisions

    A big toy school bus rear-ends a small toy school bus initially at rest. The bigger bus is several times heavier than the smaller one. Which of the following statements are true if the collision is totally inelastic? 1. The big bus exerts the same amount

    asked by Kid
  22. Math Help Please

    1. Which set of numbers represents a Pythagorean triple? 6, 9, 12 7, 10, 12 16, 18, 25 27, 36, 45 ** 2. If the lengths of the legs in a right triangle are 7 and 8, what is the approximate length of the hypotenuse? 1.4 3.8 5.4 10.6 ** 3. Which set

    asked by Pueblo
  23. Apex personal finance

    Mack opened a CD 10 years ago at an interest rate of 7.8% compounded monthly. According to the rule of 72, when did she have half as much money as she does now? A. About 9.2 years ago B. About 4.6 years ago C. About 3.9 years ago D. About 7.8 years ago

    asked by Mason
  24. Math (please check my answer!!)

    What other information must be given in order to be able to prove the two triangles congruent by ASA? i.imgsafe(.)org/c64c59dad9.jpg 1. T=S 2. P=S 3. P=R

    asked by Sami
  25. Social Studies

    You have been reading about the war between the United States and Mexico from 1846 to 1848. It sprang out of a dispute between two countries over the southern border of Texas. The U.S. claimed the Rio Grande as the border, while Mexico claimed the Nueves

    asked by Pleaseeee Help Meeee!!!!!
  26. SCIENCE

    Which of the following would be most likely lead to increased biodiversity? 1) clear cutting 2) oil drilling 3) national park planning 4) farming I thing 3

    asked by Jaden
  27. Social studies

    Which of the following did Ralph Waldo Emerson stress the importance of in his writings? The individual •• The family Agriculture Industry

    asked by Kayla
  28. math

    Decide whether each equation has one solution, no solutions, or infinitely many solutions. 1. 2(x – 3) = 2x a.one solution b.no solutions c.infinitely many solutions 2. 3(y – 3) = 2y – 9 + y a.one solution b.no solutions c.infinitely many solutions

    asked by get dunked on - sans
  29. math

    The surface area covered by a rectangular playground is 100 square yards. The width of the playground is 15 yards longer than its length. Using factors, find the length and the width of the playground.

    asked by William
  30. Sign Language

    An adjective is a word used to describe an action verb. true false**

    asked by PoPo
  31. Math

    A survey about the student government program at a school finds the following results. 190 students like the program 135 students think the program is unnecessary 220 students plan on running for student government next year. If a circle graph were made

    asked by Embershy
  32. Math (please check my answer)

    he figure below shows two triangles. Which statement about the triangles is true? i.imgsafe(.)org/c6dcf267d1.jpg The triangles are congruent by: 1. AAS

    asked by Ren
  33. Maths

    How do I prove that 7sin^2x - sinxcosx = 6 can also be written as tan^2x + tanx - 6 = 0 ?

    asked by kale
  34. Algebra

    Chandra has 2 liters of a 14% solution of sodium hydroxide in a container. What is the amount and concentration of sodium hydroxide solution she must add to this in order to end up with 7 liters of a 34% solution?

    asked by sara
  35. Chemistry

    A 5.00-L flask contains nitrogen gas at 25°C and 1.00 atm pressure. What is the final pressure in the flask if an additional 2.00 g of N2 gas is added to the flask and the flask cooled to -55°C?

    asked by Kanye
  36. Math

    Two shaded identical rectangular decorative tiles are first placed (one each) at the top and at the base of a door frame for a hobbit’s house, as shown in Figure 1. The distance from W to H is 45 inches. Then the same two tiles are rearranged at the top

    asked by Edgar
  37. Physics

    1.Given that 1g of hydrogen combines completely with 8g of oxygen to form water, how much water can you make with 9g of hydrogen and 32g of oxygen?

    asked by Katelyn
  38. ss

    You have been reading about the war between the United States and Mexico from 1846 to 1848. It sprang out of a dispute between two countries over the southern border of Texas. The U.S. claimed the Rio Grande as the border, while Mexico claimed the Nueves

    asked by Naruto
  39. maths

    3/4 of a sum of money is 54p find the whole amount.

    asked by girl analyser
  40. Physics

    A few kids decide to go to the park to go on the merry-go-round. They are the only ones there so the merry-go-round is not moving yet. They push it for 6.00 s and it moves over an angle of 129°. What is the final angular velocity of the merry-go-round?

    asked by Plz
  41. Physics

    How much faster would a person be moving if they stood on top of a 18.2 m high building compared to the ground? Take the period to be one day, and the radius of the earth to be 6400 km?

    asked by Impossible
  42. World History

    How did the Shinto belief system develop in early Japan? A. Clans erected shrines to worship their ancestors. B. Buddhist ideas evolved into Shinto beliefs. C. Warriors built shrines to remember fallen comrades D. Clans honored powerful natural spirits and

    asked by Anonymous
  43. Chemistry

    At 298 K which is larger rate of effusion or rate of diffusion?

    asked by Kanye
  44. Social Studies

    Which characteristic ultimately led to General McClellan’s replacement as Commander of the Union army? his organizational ability his cautious nature on the battlefield his reckless nature on the battlefield (my answer) his failure at the first Battle of

    asked by Betta Fish
  45. math

    ervin sells vintage cars. every three months, he manages to sell 13 cars. assuming he sells cars at a constant rate, what is the slope of the line that represents this relationship if time in months is along the x-axis and the number of cars sold is along

    asked by Anonymous
  46. math

    he coordinate plane below represents a city. Points A through F are schools in the city. graph of coordinate plane. Point A is at negative 5, 5. Point B is at negative 4, negative 2. Point C is at 2, 1. Point D is at negative 2, 4. Point E is at 2, 4.

    asked by Ashley
  47. math

    Sebastian rides his bike 2,000 meters in five minutes. How many meters does he bike in 1 minute

    asked by Nicholas
  48. Physics

    The figure shows a pV diagram of a gas for a complete cycle. During part bc of the cycle, 1190 J of heat flows into a system, and at the same time the system expands against a constant external pressure of 7.00 × 104 Pa as its volume increases from 0.0200

    asked by Sabrina
  49. Math

    Carols stamp collection France 24% England 22% Italy 25% Norway 29% How many more of Carol's stamps are from Norway than from France? A. 5 stamps B. 24 stamps C. 29 stamps D. 53 stamps

    asked by Embershy
  50. Physics

    What is the change in entropy of the lead when 2.0 kg of molten lead at its melting point temperature solidifies? For lead: L V = 207 kcal/kg at 1744°C, L F = 5.9 kcal/kg at 328°C. Express your answer using two significant figures in kcal/K

    asked by Sabrina
  51. Algebra

    What are the equivalent fraction and decimal for 33 1/3%? A. 1/33 and 0.3 B. 1/33 and 3 C. 3 1/3 and 0.333333 D. 1/33 and 0.333333

    asked by Erika
  52. Social Studies

    which of these judgments would the Koreans most likely make about the Japanese based on this excerpt? A. The Japanese unfairly limited Korean civil rights B. The Japanese managed the Korean economy poorly C. The Japanese had a much stronger military than

    asked by Sid.V
  53. Chemistry 20

    Lab: Determining the Quantity of Vitamin C in Fruit Juice Vitamin C, also called ascorbic acid, is commonly found in commercial fruit juices and drinks. In this activity you will analyze data collected from a titration analysis of a fruit juice. The

    asked by Sadie
  54. Science

    Nh4hs dissociates in a vessel at temp T K in the presence of 0.5 atm nh3. At equilibrium the pressure due to h2s is 1.5 atm.In a vessel V2 ( initially evacuated) the solid dissociates at T K.The total pressure at equilibrium in vessel V2 is P.and the

    asked by Preeti
  55. maths

    What is mode n average for 2 students test scores our of 25 for maths. A Test 1: =21 Test 2: =24 Test 3:=19 Test 4: =21 K Test 1:= 18 Test 2:= 19 Test 3:= 19 Test 4:= 17 Test 2:= 19 Test 3:= 19 Test 4:= 17. N Test 1:= 16 Test 2:= 15 Test 3:=19..

    asked by nyle wilkes
  56. maths

    The rectangular coordinates of a point are given (-5,-5root3). Find polar coordinates of the point. Express theta in radians. Answer must be in form ​(Type an ordered pair. Type an exact answer in terms of pi.Use integers or fractions for any numbers in

    asked by Asfand
  57. Math (Calculus) (Related Rates)

    A boat pulls away from a dock at 2 m/s, but the operator has neglected to remove the tow rope used to pull the boat up to the dock. This rope runs thru a pulley which is attached to the dock at a point 1 m higher than the point at which the rope is

    asked by Ray
  58. Social Studies

    what contributed to the rapid growth of japan economy following world war II A.a decrease in exported goods B.new factories with modern technology C.a poorly educated workforce**** D.fewer loans being given to bussinesses

    asked by Sid.V
  59. Accounting

    Determine the amount to be paid in full settlement of each of the following invoices, assuming that credit for returns and allowances was received prior to payment and that all invoices were paid within the discount period.

    asked by Kimmie
  60. Statistics

    Salaries of 50 college graduates who took a statistics course in college have a​ mean, x of $68,200. Assuming a standard​ deviation, σ​, of $12,279​, construct a 95% confidence interval for estimating the population mean μ.

    asked by casey
  61. statistics

    At a cafeteria the customers arrive at an average of 0.3 per minute. The probability that a)exactly 2 customers arrive in a 10 minute span b)2 or more customers arrive in a 10 minute span c) one customer arrives in a 5 minute span and one customer arrives

    asked by momina
  62. Science

    Direction: Place a big mug, a plastic drinking glass and an empty glass bottle on the table with the big mug at the center, the drinking glass at the edge of the table, and the bottle anywhere on the table. With the force , shake the table and observe what

    asked by Liv
  63. algebra

    The sum of two numbers is 43. The smaller number is 15 less than the larger number. What are the numbers

    asked by Brooke
  64. Math

    The coordinate plane below represents a city. Points A through F are schools in the city. graph of coordinate plane. Point A is at negative 5, 5. Point B is at negative 4, negative 2. Point C is at 2, 1. Point D is at negative 2, 4. Point E is at 2, 4.

    asked by Bea
  65. Math

    Sheldon is a long-distance runner he can run a mile in 6 4/5 minutes how many miles can he run in 30 minutes

    asked by Anahi
  66. Physics

    A military jet is flying at 224 m/s in a tight circular turn. If the military jet reaches a centripetal acceleration of 8.00 times the free-fall acceleration, what must the radius of its turn be?

    asked by Physics Lover
  67. Math

    I am outside the path. (10,8,3,7) I am the difference of 2 numbers inside the path.(6,2,10,9,5) I am less than 5

    asked by Chase
  68. physics

    Just like the efficiency can be used to tell how 'good' an engine is, the Coefficient of Performance can be used to compare refrigerators. If a refrigerator requires 1.21×104 J of work to remove 3.23×104 J of energy from the inside of a refrigerator,

    asked by taylor
  69. maths(PLEASE HELP!)

    4350 rounded to the nearest 0.5liters

    asked by girl analyser
  70. Social studies

    Which of the following is a key idea of transcendentalismo? Belief in human reason Belief in personal insights Belief in expansion of the country •• Belief in isolation from other nations

    asked by Kayla
  71. Math

    If the inverses of two functions are both functions, will the inverse of the sum or difference of the original functions also be a function? Explain your reasoning.

    asked by Anonymous
  72. Math

    The figure below shows two triangles. Which statement about the triangles is true? i.imgsafe(.)org/c60dcd0488(.)jpg The triangles can be proven congruent by: 1. Angle angle side

    asked by Sara
  73. Math

    The coordinate plane below represents a city. Points A through F are schools in the city. graph of coordinate plane. Point A is at negative 5, 5. Point B is at negative 4, negative 2. Point C is at 2, 1. Point D is at negative 2, 4. Point E is at 2, 4.

    asked by Bea
  74. American Government

    Why was the Department of Defense created? a. to place the U.S. Army and Navy in one executive department b. to establish a military chains of commands*** c. to end disagreement between the U.S. Army and Navy d. to lessen the instance of military abuse of

    asked by Alice Keign
  75. math

    It takes 8 hours for 5 people to paint a room. How long would it take 4 people?

    asked by Mariam
  76. physics

    A police van moving on a highway with a speed of 30km/hr, fires a bullet at a theif's car speeding away in the same direction with a speed of 192km/hr. If the muzzle speed of the bullet is 150m/sec. With what speed does the bullet hit the thief's car

    asked by Aarathana
  77. pre calculus

    A small fast food restaurant invests $4000 to produce a new food item that will sell for $3.50. Each item can be produced for $2.15. How many items must be sold in order to break even? Round to the nearest item.

    asked by Anonymous
  78. maths

    200g of mushrooms cost 48p. Find the price of the mushrooms per half-kilogram.

    asked by colette
  79. Biochemistry

    A signaling protein with both a SH2 and a SH3 domain binds to the phosphorylated form of its target protein with a Kd of 0.23 nM. The affinity of the SH3 domain by itself is 41 uM and the phosphotyrosine contact with the SH2 domain is responsible for 22

    asked by Tyler
  80. Math

    The average snowfall 2 to 5. If 44 inches fell in January find the predicted total snowfall for the winter

    asked by Maurice
  81. Math

    Find the cost of each item in 5 years, assuming an inflation rate of 8%. (Round each answer to the nearest cent.)

    asked by Soraya
  82. algebra

    The temperature is dropping 1.5 degrees each hour after 6 hours the temperature is 38 degrees how t write this equation?

    asked by Torrie
  83. algebra

    Which ordered pair is a solution of y = x – 4? a. (−1, −5) b. (0, −3) c. (2, 6) d. (3, 1) my answer C (2, 6)

    asked by J J
  84. maths

    amelie is x years old her sister is four years older her brother is three times her age the sum of their age is 44 years

    asked by sophia
  85. Math

    Where do u place the grouping symbols to make this true? 3×5-8+7-3÷6=13

    asked by Rya
  86. Physics

    A washing machine needs 17.9 s to speed up from rest to top speed of 5 rotation for every 2.78 s. If the damp cloths inside are 7.13 cm from the center, what is it's radial acceleration at top speed?

    asked by Physics Lover
  87. math

    In Heather's class room there are red chairs,yellow chairs, and blue chairs. There are 3 red chairs. There are 4 times as many yellow chairs as red chairs, and there are 3 fewer blue chairs than yellow chairs. How many chairs are there in Heather's

    asked by Lina
  88. science

    A steel rod of length 60 cm and radius 2.5 mm hangs vertically. If a mass of 2.5 kg is attached to the end of the rod, calculate the increase in the length of the rod

    asked by david
  89. science

    How many drop (1drop=0.05ml) of 0.20M potassium iodide must we add to 0.010M Pb(NO3)2 to get precipitation of lead iodide to start if Ksp of lead iodide is 7.1x10^-9.

    asked by Stephen
  90. Pythagorean Theorem 8th Grade

    Fern wants to get a computer monitor for her desk which can hold a 21 inch monitor. She's found a monitor that's 15 inches wide and 12 inches long. Will the computer monitor fit into her desk? (I've already got the answer which is 19.21 inches I need to

    asked by Music Lover 14
  91. Science

    a person watching through a window of an apartment sees a ball that rise vertically up then vertically down for a total time of0.5s.if the hieght of the window is 2m ,find the max hieght reached by ball above the window

    asked by Tttt
  92. Math

    A salmon swims 15 miles downstream from its birth to the ocean in 3 hours. The return trip upstream to spawn takes 5 hours. How fast does the salmon swim in still water?

    asked by Raquel
  93. trig

    The rectangular coordinates of a point are given (-5,-5root3). Find polar coordinates of the point. Express theta in radians.

    asked by Asfand
  94. trig

    The rectangular coordinates of a point are given (0,-6). Find polar coordinates of the point such that r greater than 0 and 0 less than or equals theta less than 2pi. how to solve this damon please help me

    asked by Asfand
  95. precalculus

    Which of the following would be the best first step for solving the system of equations by elimination? • 6.3x + 7.2y = 5.4 • 5.6x + 6.4y = 4.8

    asked by Anonymous
  96. SCIENCE

    What is the purpose of wildlife corridors build under roads? 1) habitat fragmentation 2) habitat loss 3) habitat competition 4) habitat creation 2 ?

    asked by Evelyn
  97. probability

    Rolling a 5 on a fair number cube

    asked by Anonymous
  98. Math

    A homeowner has a 1 foot by 8 foot carpet and a 10 foot by 10 foot carpet. Show how he can cut the 10 foot by 10 foot carpet into two pieces so that he can carpet a 9 foot by 12 foot room.

    asked by Junny
  99. Math

    Find the set of all z such that neither 2+z nor 2-z is in the interval (-1,1]. Express your answer as an interval or as a union of intervals.

    asked by Jeff
  100. English

    1. It seems that he is rich. (Is the that clause a subjective complement?) 2. My car is similar to yours. 3. My car resembles yours. 4. My car takes after yours. 5. My car looks like yours. 6. My car is like yours. (Are the five sentences all the same in

    asked by rfvv
  101. write teacher

    I need you to help me write a paragraph about Frederick douglass and how he learned how to read and write

    asked by lamisha
  102. Math

    Whete do you put the parenthesis in problem :50/10+10/2=5

    asked by Vivtoria
  103. Chemistry

    If you try to carry out a double displacement reaction by mixing together equal volumes of a solution that contains dissolved NaF and a solution that contains dissolved NaCl. Would you expect a reaction? Why or why not?

    asked by Rebecca
  104. physics

    A ball is attached to a spring on a frictionless horizontal surface. The ball is pulled to the right and released from rest at t = 0 s. If the ball reaches a maximum speed of 34.1 cm/s and oscillates with a period of 4.50 s, what is the ball's velocity at

    asked by cristiano
  105. Physics

    A Carnot engine of efficiency 41% operates with a cold reservoir at 24 °C and exhausts 1290 J of heat each cycle. What is the entropy change for the hot reservoir? Answer in J/K. I keep getting the answer incorrect. Here is the work: Efficiency = 100*(Th-

    asked by Kayla
  106. history

    1. In 1786, A group of western Massachusetts farmers rose up to protect taxes,and action against debtor. This uprising, Known as shay's rebellion, Was important because it- A.showed that the confederation congress was too weak to tax farmers. B.revealed

    asked by help me please
  107. math

    An arithmetic series is such that the 10th term is 40 and the sum of the first 10 terms is 265. Find the sum of the first 20 terms.

    asked by Fernando
  108. Physics

    A cylindrically shaped piece of collagen (a substance found in the body in connective tissue) is being stretched by a force that increases from 0 to 0.0436 N. The length and radius of the collagen are, respectively, 2.90 cm and 0.0815 cm, and Young's

    asked by BrookeNeed
  109. Math word problems

    Sally has 108 muffins,which he needs to box up, 6 of which are blueberry, into dozens. How many boxes does he need

    asked by Anonymous
  110. Math

    -8y = 2x -7 +9y +7= 2x Determine whether each equation represents a direct variation. If it does, find the constant of variation.

    asked by Mike
  111. engliah

    11 letter word. Letters is 'gibantintel'.. Word..?

    asked by miju
  112. Social Studies

    The Free-Soil party would most likely agree with which of the following? Plantation system Manifest destiny (my answer) Increased immigration Popular sovereignty

    asked by Betta Fish
  113. Chemistry

    If 3.42 grams of Al2(SO4)3 are required, what mass of H2SO4 must be present?

    asked by Asia
  114. Chemistry

    Write an equation for the oxidation of NH2OH to HNO3 by KBrO3. Balance the reaction equation using the ion-electron method.

    asked by Terry
  115. Chemistry

    Why we add HCL ot H2SO4 during the experiment Of iodometry?

    asked by Mikel
  116. English

    1. It appears that there has been a mistake. 2. There appears to have been a mistake. 3. It happened that she was out when we called. 4. She happened to be out when we called. 5. It chanced (that) they were staying at the same hotel. 6. They chanced to be

    asked by rfvv
  117. math

    LCM of 81a^2b^2 and 27a^3b^3

    asked by aroo
  118. precalculus

    A small fast food restaurant invests $4000 to produce a new food item that will sell for $3.50. Each item can be produced for $2.15. Which of the following systems shows the cost and revenue functions for x items produced and sold?

    asked by Anonymous
  119. precalculus

    Which of the following would be the best first step when solving the following system using the substitution method? • x - y = -4 ; • x + 2y = 5 x = -4 - y x = -4 + y 2y = 5 - x 2y = 5 + x I have solved the equation but I am unsure which is the best

    asked by Anonymous
  120. Business Administration

    To what extent does national economic success depend on Research and Development (R&D)?

    asked by Fam
  121. Physics

    A 0.1134kg spherical meteor of diameter 3 cm enters the earth’s atmosphere at an elevation of 121920m with a velocity of 13411.2 m/s. The meteor’s temperature is -73.15˚C. The specific heat at constant volume (Cv) of the meteor is 800 J/kg˚C. (a) If

    asked by Jack
  122. statistics

    Consider an upper-tail test of hypothesis for the difference in two population means. The sample data from the first population is: n = 50, x-bar = 110, s = 10. The sample data from the second population is: n = 75, x-bar = unknown, s = 11. We conclude the

    asked by zac
  123. math

    A fair die is thrown twice, what is the probability that the product of the outcome is a perfect square?

    asked by ABIOLA
  124. maths

    A boy throws a ball vertically upwards with a velocity of 10m/s.What is the velocity of the ball when it is half way up?

    asked by Anonymous
  125. maths

    A regular hexagon has sides each measuring 58mm. Find its perimeter in centimetres.

    asked by girl analyser
  126. physics

    a sound generator is set up 5 m above the diving end of a swimming pool. the depth of the pool is known to be 12 m deep. the generator sends one short pulse of sound down at the pool. it takes 0.05s for an echo to return from the bottom of the pool.What is

    asked by kassy
  127. emt

    what is the Integration of x.y.[(x^2 +y^2 +25)^3/2 ] dx.dy from (0

    asked by AKASH
  128. Math

    Martha is twice as old as her younger brother. The sum oh their ages is 36. How old are they?

    asked by Jo-Anna
  129. physics

    a 7.0kg block and a 12kg block sit on a frictionless table. Between and touching, but not attached to, the blocks is a spring that is compressed by 13.5 cm. the spring has a spring constant of 1200 N/m. if the spring were released at what speed would each

    asked by kassy
  130. Chemistry

    Hi, wondering if anyone can help with the following problem: A solution of NH3 (kb=1.8x10^-5) has a ph of 11. what is the molar concentration of NAOH? I am unsure how to go about this however i have tried [10^-3][10^-11]/ 1.8x10^-5 with no success. Thanks

    asked by Frank
  131. math

    The area of a square garden is represented by the quadratic expression 9x2 - 12x + 4. The length of one side of the square garden is 91 inches. What is the value of x ? Hint: Since the garden is in the shape of a square, the expression 9x2 - 12x + 4 is the

    asked by Jalen
  132. Science

    What is a scientist who studies humans???

    asked by Emma R.
  133. Math

    From the roof of a building, the angle of elevation of the top of a taller building is 37 degrees. The angle of depression of the base of the building is 28 degrees. The buildings are 21 m a part. Determine the height of the taller building

    asked by Jenna
  134. English

    1. She put a blanket over the sleeping baby. 2. She put a blanket on teh sleeping baby. (Can we use both over and on? What is the difference between them?)

    asked by rfvv
  135. Chemistry

    If the change in temperature of a sugar added solution of water increased its boiling point by 0.6C how many moles of sugar was added to the water?

    asked by Bill
  136. electomagnetics

    what is the Integration of x.y.[(x^Integration of x.y.[(x^2 +y^2 +25)^3/2 ] dx.dy from (0

    asked by ASHISH
  137. Social Impact of Technology

    In general, heat amounts to the vibration of __________ such that increasing vibrations register as increasing heat. A. elements B. particles C. molecules D. compounds An-- C

    asked by Angela
  138. chemistry

    Calculate the formula of a compound which has composition. MaMagnesium 9.8%,sulphur 13%, oxygen 26%,water of crystallization 51%. (Mg=24,S=32,O=16,H2O=18g/mol)

    asked by furry
  139. Physics, Math, Science

    A 56 kg student is standing atop a spring in an elevator that is accelerating upward at 3.5 m/s^2. The spring constant is 2300 N/m. By how much is the spring compressed? I'm not exactly sure how to approach this problem, much less solve it. The

    asked by Erik
  140. MATH

    5kg of flour and 4kg of sugar cost $14.80. If 3/4kg of flour costs the same as 3/5kg of sugar, what is the cost of one kg of sugar? PS : How do we get the answer without using the algebra method? Thank you.

    asked by YEOW
  141. English

    1. "These pictures show how lava from kilauea's eruption threatened everything in its path in 1989," I added. 2. Its crater, halemaumau crater, is the largest active crater in the World. 3. then ms. jackson told us that honolulu is probably the most

    asked by Hayden
  142. math

    Round the decimal to the nearest hundredths place 1.724

    asked by mae
  143. Physics

    A 27.9 kg block (m1) is on a horizontal surface, connected to a 6.50 kg block (m2) by a massless string as shown in the figure below. The frictionless pulley has a radius R = 0.090 m and a moment of inertia I=0.060 kgm2. A force F = 192.1 N acts on m1 at

    asked by Anonymous
  144. Math

    Not counting the "turn around" , a helicopter carrying passengers between an airport and the roof of a downtown skycraper 20 miles away can make the round trip in 15 minutes. The helicopter flies 2 miles away with the wind when the time it flies 1 mile

    asked by Raquel
  145. Math

    Write an equation in slope-intercept form of the line that passed through (-3,4) and (1,4). I think the answer is y=0/4x+4 Thank you

    asked by Anonymous
  146. Science

    What is a substance that absorbs and reflects diffrent wavelenghts of light?

    asked by Gracie K.
  147. Science

    What is When digital information is superimposed on a physical environment (two words)

    asked by Emma
  148. Physics

    A gun is shot horizontally from a building that is 10 meters high at a velocity of 220 meters/ second: I need to know what Vx is and Vy along with answering Vx after 3 seconds Vy after 3 second. We were given these equations Vy= Vy0-9.8t y= y0+Vy0t-4.9t^2

    asked by Anonymous
  149. math

    The mean of the scores of three students in a class is 9. If the modal score is 11, find the lowest score.

    asked by somay
  150. math

    Find the least residue of 7^5 mod 50 without using a calculator. so far I have 7=7 mod 50 7^5 = 7^5 mod 50 7^2 = 49 7^3=343 since 7^2=(-1)mod50 and 7^3=(-43)mod50 it follows that 7^6=7^2 * 7^3 = (-1)(-43) = 43 feel like this is wrong though could somebody

    asked by s17
  151. math

    David is planning to travel alone by motorcycle from Singapore to China. The total distance to be travelled is 4900 km. In the first week, he can travel 1000 km. a) How many weeks does it take for David to reach his destination, if he reduces the distance

    asked by Thiago
  152. Algebra 2

    How do I find the zeros? y=h^3+6h^2+5h-180

    asked by Olivia N J
  153. science

    When a ray of light travels from air to glass and it strikes the surface of separation at 90 degree,then what

    asked by vinay mayavanshi
  154. Physics

    2. A ham sandwich consists of one slice of ham (7grams) and two slices of bread (25 grams each). You have 1kg of ham and 1kg of bread. You make as many as you can. How many sandwiches did you make? What is the mass of the sandwiches? What is the mass of

    asked by Katelyn
  155. math

    I have …. 3 ones 15 hundredths 9 tenths What number am I?

    asked by Trisi
  156. Social Studies

    Where can I find a good map of China from the california standards chapter 7 lesson 1-4?

    asked by Anonymous
  157. Math

    Joe takes twice as long as to row against a current as with it. If he rows 6 miles an hour in still water, what is the rate of the water?

    asked by Raquel
  158. Math

    The width is 2/3x+10 and the height is 1/3x+5 and the next question asks if the perimeter was 90 what would x represent?

    asked by Isaac
  159. None

    If there's three there's two If there's two there's one If there's one there's none. What's the answer?

    asked by Aaron
  160. math

    12 out of 15 wins,how many of its games the football team has won so far .express this information as a fraction as a percent and as a decimal

    asked by latrisha
  161. Math

    Solve -i-2-(6-4i)-(5-2i)

    asked by Emma
  162. Chemistry

    A minimum energy of 151 kJ is required to dissociate a mole of iodine molecules, I2. Calculate the wavelength of radiation that supplies this energy, assuming each bond beaks by absorbing one photon.

    asked by Victor
  163. Math

    Water covers approximately 11,800 mi^2 of Florida,which is about 18% of Florida's area.what is the total are if Florida to the nearest. Thousand suare miles?

    asked by Tionna
  164. Chemistry

    The maximum number of PbO molecules that can be injected is 3.01 x 10*23 1.) How many moles of PbO can be injected? 2.) What mass of PbO can be injected?

    asked by Nayer
  165. math

    what is 10% of 110?

    asked by Human Being
  166. Math

    Input: 100 Output 10 Input: 30 Output 3 Input: 70 Output 7 Input: 40 Output 4 Input: 50 Output 5 What is the equation to show the relationship between the input and the output???? PLEASE HELP

    asked by RITA M
  167. Math

    Not counting the "turn around" , a helicopter carrying passengers between an airport and the roof of a downtown skycraper 20 miles away can make the round trip in 15 minutes. The helicopter flies 2 miles away with the wind when the time it flies 1 mike

    asked by Raquel
  168. Math

    A motorboat travelling at full speed against a current goes 15 miles in one hour. Travelling at half speed with the current, it goes 12 miles in an hour. Find the rate of the current.

    asked by Raquel
  169. Sociology

    In What ways might homelessness be categorized as a social problem? What concerns do you have abut these policies? What group are disproportionately impacted by the social problem? Define the elements that make this solution effecte.

    asked by June
  170. Science

    What is a substance that absorbs and reflects diffrent wavelenghts of light?

    asked by Emma R.
  171. Math

    What is the slope of the line that goes through (6, 5) and (3, 1)? a. 3/4 b. -3/4 c. 4/3 d. -4/3

    asked by J J
  172. Math

    How does one solve this? A= LxW ;w This is exactly how it was written and I heard your supposed divide something but I don't know...

    asked by Anonymous
  173. Math

    14 bottles of water costs $56.How much would you pay for 50 such bottles?

    asked by Brianna
  174. Math

    If the diameter of a circle is 42cm;what is its radius. Show the formula and the calculation

    asked by Daniel
  175. calculus need help studying now

    find the point of coordinates of the point of inflexion on the curves (a):y=(x-2)²(x-7) (b) y=4x^3+3x²-18x-9 plz i tried my best and i got(11/6, -31/216) but keep saying am wrong

    asked by ...
  176. math

    Suppose you want to build a house on the edge of a hill that overlooks a deep valley. what measures could you take to be sure your home will not have problems due to weathering or erosion?

    asked by Anonymous
  177. Math

    How do I write 15 times 3.4 using the distributive property?

    asked by Anonymous
  178. Language Arts

    Ok I have to make a compare and contrast essay and I need some topics. Can anyone give me some? :))

    asked by Lyla
  179. physics

    When the wind is blowing an average of 31.8 mph, a wind tower with its propellors centered at a height of 80 m off the ground is supplied with energy at a rate of 14.4 kW. A large bank of batteries collects the energy from the wind tower. If the efficiency

    asked by Brittany
  180. Math

    An energy saver heater uses 24% less energy than the older heater model. The older heater uses $350 worth of energy per year. A homeowner replaces his older heater with the new, energy saving heater. Each year how much will he save?

    asked by Jenny
  181. Math

    The air speed of a plane is 150 mph. If the plane traveled the same distance in two hours with the wind as it flew in 3 hours against the wind, what was the wind speed?

    asked by Raquel
  182. Math

    If you have 3/5 for every 2 cups of flour.How much milk was used per flour

    asked by Rosie
  183. English

    Posted by rfvv on Friday, November 4, 2016 at 11:17pm. Oh Lordy, how my heart grows weary, far from the old folks at home. --------------------------------- This is a sentence in the song "Swanee River. Q1: " What is the meaning of "Lordy" here? Is Lordy

    asked by rfvv
  184. Math

    A rabbit travel 20 minutes in five minutes. At this speed how far can a rabbit travel in 12 minutes

    asked by Nhi
  185. Math

    In the problem 7×4-4÷2 what can I put parentheses to make the statement true

    asked by Lil
  186. Math

    an at display includes two sound-effects speakers. They need to be positioned on the wall so that when you stand midway between the speakers, you are no closer than 7 feet to either speaker. each speaker should be the same distance from the corner. How far

    asked by Anonymous
  187. math

    g(x)=45x^5 For the given function, construct a new function whose graph is the graph of the original function shifted left by two units, then multiplied by 1/5, and then shifted down by three units. MY ANSWER: 9(x^5+3)-3 However it says I'm wrong please

    asked by Brita
  188. Science

    What is When digital information is superimposed on a physical environment (two words)

    asked by Emma R.
  189. Maths

    Find the vertical asymptote of the following curve: (5x+3)/(e^(x)-1)

    asked by Grace
  190. math

    how many pairs of numbers between 1-100 has LCM less or equal to 20?

    asked by Joe
  191. Math Question

    Can anyone explain to me how to graph a circle if it has a square root radius? Example: x^2+y^2-7x=12-4y The radius is √113/2, but I don't know how to graph it.

    asked by Seth
  192. Quadrilateral and polygons

    ICSE

    asked by Vibhor
  193. Math

    I need help now

    asked by please help me