# Questions Asked onApril 27, 2015

1. ## math

Determine which function has the greater rate of change in questions 1−3 1. x y ------- -1 0 0 1 1 2 2 3 (1 point) The rates of change are equal. The graph has a greater rate of change.*** The table has a greater rate of change. none of the above 2. y =

2. ## Chemistry

A gaseous compound is 30.4% nitrogen and 69.6% oxygen by mass. A 5.25-g sample of the gas occupies a volume of 1.00 L and exerts a pressure of 1.26 atm at -4.00°C. Which of these choices is its molecular formula?

3. ## History

Which explains why the Compromise of 1850 intensified the argument about slavery? A- People for and against slavery migrated to Western stats to influence laws. B~Free states in the West added more antislavery votes to Congress. C~The equal division of

4. ## Math

The temperature, t, in degrees Fahrenheit, in a certain town on a certain spring day satisfies the inequality | t - 24 | is less than or equal to 30. Which of the following temperatures, in degrees Fahrenheit, is NOT in this range? F. -10 G. -6 H. -5 J. 0

5. ## chemistry

What is the approximate effective nuclear charge for arsenic ?

6. ## Physics

Two pellets, each with a charge of 1 microcoulomb, are located 3 cm apart. What is the electric force between them?

7. ## math

Find the volume of the cone to be constructed from a sector having a diameter of 72 cm and a central angle of 210 

8. ## geometry

What is the value of x? Justify each step. AC=32 2x 6x+8 .__________________._________________. A B C Drawing not to scale AB + BC = AC a.segment addition postulate 2x + 6x + 8 =32 b.substitution 8x + 8 = 32 c.simplification 8x = 24 d.addition property of

9. ## Chemisrty

To what volume must 1.0 l of a 6.0 m solution of hcl be diluted in order to prepare a 0.2 m solution? I just need to find wht steps i need to take to get the answer

10. ## World Geo, Help pls

Please help!!! Which of the following is not true about Aborigine culture? (1 point) It is the oldest surviving culture on Earth. Traditional Aborigine societies formed agricultural settlements. Aborigines do not believe that land belongs to humans.

11. ## English 4

In “On Making an Agreeable Marriage,” when Austen writes that “Mr. J. P.” has an “amiable mind, strict principles, just notions, and good habits,” what kind of persuasive appeal is she making to Fanny? She's making Fanny think positive things

12. ## LA

"President Lincoln’s Declaration of Emancipation, January 1, 1863" by Frances E. W. Harper 1 It shall flash through coming ages, 2 It shall light the distant years; 3 And eyes now dim with sorrow 4 Shall be brighter through their tears. 5 It shall flush

13. ## Freezing solution

An ethylene glycol solution contains 26.2g of ethylene glycol (C2H6O2) in 81.4mL of water. Calculate the freezing point of the solution. (Assume a density of 1.00 g/mL for water.) how do I set this up?

14. ## Math 222

what is the value of the discriminant and of the real solutions of the quadratic equation? 5x^2-9x plus 2 equals 0

15. ## Algebra

Renee is twice as old as Dana. Four years ago Renee was three times as old as Dana. How old are Renee and Dana now? Show Work

16. ## Chemistry

When aqueous solutions of lead(II) ion are treated with potassium chromate solution, a bright yellow precipitate of lead(II) chromate, PbCrO4, forms. How many grams of lead chromate form when a 1.60-g sample of Pb(NO3)2 is added to 24.0 mL of 1.01 M K2CrO4

17. ## Algebra

2x^2-6x-36=0 Solve by completing the square

18. ## Accounting

DeWeese Corporation issues \$400,000 of 8%, 5-year bonds on January 1, 2015, at 105. Assuming that the straight-line method is used to amortize the premium, what is the total amount of interest expense for 2015?

19. ## Calculus

find area of the region bounded by the curves y=x^2-1 and y=cos(x). give your answer correct to 2 decimal places.

20. ## algebra

Which point satisfies the equation 2x+3y=8? A) (-1,3) B) (2,2) C) (-2,4) D) (1,4)

21. ## chemistry

A sample of potassium hydrogen oxalate, KHC2O4, weighing 0.717 g, was dissolved in water and titrated with 18.47 mL of an NaOH solution. Calculate the molarity of the NaOH solution.

22. ## Help ms sue or whoever smart as history

How did men like William Lloyd Garrison, Reverend Lovejoy, and Fredrick Douglass participate in the abolitionist movement? I don't know what the answer is... There are no choices

23. ## SCIENCE HELP! Ms.Sue

Check my answers! In the 1930s, windmills were widely used to generate electricity on most farms in the united states. which kind of energy resource is used in windmills? A. Recyclable energy B. Nonrenewable energy C. Renewable energy**** D. Potential

24. ## english

In the following sentence, what word does the participle phrase modify? Everyone in the annex heard her screaming loudly -Everyone -Annex -Heard -Her** Which sentence contains are participle phrase? -She wants so spend time writing. -Her job is giving the

25. ## Statistics

A multiple choice test has 24 questions each having 4 possible answers. If you guess each answer, find the probability of getting Between 9 and 15 correct

26. ## psychology

which of the followinfg is not a current trend regarding marriage? A. an increase in the average age at first marriage. B. an increase in the percentage of couples who voluntarily remain childless. C. an increase in the number of single adults. D. a

27. ## Civics

Which order lists government types from the least power for the people to the most? Oligarchy, autocracy, republic Autocracy, oligarchy, democracy Democracy, unitary, parliamentary Federation, republic, unitary***

28. ## English

In the short story "Test" by Theordore Thomas, it is carefully constructed to offer the readers many unexpected twists and turns. Identify these twists and explain how the author intetionally misleads the audience in each case. Please help!! Thank you for

29. ## Math

Identify all sums, products, and factors in the expression (x+5)(y+9) +(2+x)(y+23)

30. ## Math

If sin 0 = -3 / 5 and pi < 0 < 3pi / 2, then tan 0 = ? F. -5 / 4 G. -3 / 4 H. -3 / 5 J. 3 / 4 K. 4 / 5

31. ## Art

What technology was the key to the efficiency of Gutenberg's printing press? Strong roller moveable type** specialized ink strong paper Prior to the invention of the printing press, what groups of individuals had the most access to books? peasants and

32. ## physics

A feather is dropped onto the surface of the moon. How far will the feather have fallen if it reaches the surface in 9.00 seconds? Given: g on moon = –1.63 meters/second

33. ## Math

Solve the equations to the nearest tenth and use the given restrictions. 2. sin theta = -0.204, for 90 degs < theta < 270 degs Ans: 191.8 degs?

34. ## chemistry

Can aluminum (Al) react with K2SO4 by single replacement to yield products? Using the activity series chart, I know that K is more reactive than Al so does that mean that a reaction will occur or not?

35. ## Math

Manuel earns \$400 per week plus a 3% commission on everything he sells. Write and solve and inequality to find out how much he must sell to have a weekly income of at least \$700.

36. ## math

Write a function rule for finding the amount of daily pay, p in the following situation; A bus driver gets paid \$100 each day plus \$0.20 per kilometer, k. A.100=0.20 x k B. p=0.20x100 x k C. p= 0.20k+100 D. 0.20k=100+p Is the answer B??

mr. mike invested two sums of money on simple interest. the fist was \$2200 invested at 8% per annum and the second \$1960 at 10% per annum. the sums were allowed to frow till bothe amounted to the same figure. in how many years did this happaended and what

38. ## Inequalities Interval Notation

Solve: (2 + x)(5 + x)(4 - x) < 0 (write answer in interval notation) Which I think is xe (-infinity, -5) or (-2, 4) and Solve: (4x + 1)(3 - x) > or equal to 0 (write answer in interval notation) Which im unsure

39. ## Chemistry

How many moles of ammonium nitrate is created from 10.7 grams of ammonium nitrate? Thus how many grams of ammonium nitrate is needed to make exactly one mole of ammonium nitrate?

1) Which of the following most directly made possible the Age of Exploration? A) hydropower B) caravel C) aqueduct D) wind turbine 2) Which region of Western Europe experiences an arctic climate. A) the Iberian Peninsula B) Italy and Greece C) the British

41. ## Geometry

A school's wrestling mat is a square with 50 ft sides. A circle 28 ft in diameter is painted on the mat. No wrestling is allowed outside the circle. Find the area of the part of the mat that is NOT used for wrestling. Use pie=22/7.

42. ## Algebra

Jack bought 3 slices of cheese pizza and 4 slices of mushroom pizza for a total cost of \$12.50. Grace bought 3 slices of cheese pizza and 2 slices of mushroom pizza for a total cost of \$8.50. What is the cost of one slice of mushroom pizza?

43. ## physics

If the coefficient of kinetic friction between tires and dry pavement is 0.800, what is the shortest distance in which an automobile can be stopped by locking the brakes when traveling at 25.6m/s ?

44. ## Organic chemistry

Help with prediction products of a reaction! 4-phenylbutanoyl chloride + AlCl3 --> ? the molecular formula of the product is C10H10O, and I need to determine the product. I was thinking an acylium ion would form, and then the carbonyl carbon would form a

45. ## geometry

A loading dock ramp that is 14 feet long rises at an angle of 14.1° from the horizontal. Due to new design specifications, a longer ramp is to be used, so that the angle is reduced to 9.2°. How much farther out from the dock will that put the foot of the

46. ## English

Should the first letter of these words be capitalized in this sentence or not? I'm quoting them from a poem, and they are not capitalized there. Should I add a comma before "diverged"? The words "diverged," "both," and "another day" refer to decisions we

47. ## Math

rcsdk12 . org/cms/lib04/NY01001156/Centricity/Domain/5668/10.1%20Solid%20Geometry%20Classwork.pdf In question 4, is the first choice the answer?

48. ## math, if i have correct answer

Prove the identity: tan^2O/ 1 + tan^20 = sin^20 I get 1=1, but others have got sin^2=sin^2 Who's right?? Because there is no answer for this question at the back of the book

49. ## Precalc-functions

Find the inverse of the function f(x) = 2/3x + 5. Mention if there is any restriction on domain of f^ -1

50. ## Math

(a) T(m) = −22.75 cosπ/6(m − 1) + 52.55 = 48 m =

51. ## C++ Programming

I am so bad at programming and after this class I am done with it and changing my program! I don't even know where to start! It says demonstrate array of Struct,2 dimensional arrays and sorting routine. A trucking company charges the customers a fixed

52. ## The villages

(x+3)/(x^2-2x-8)- (x-5)/(x^2-12x+32)

53. ## Math

1. The towns population increased from 80,000 to 90,000 in ten years. What was the percent of increase? I didn't understand this one. 2. A \$15 item on sale for \$12 is marked down what percent? 20% 3. If Jenna buys and item for 40% off the regular price,

55. ## Chemistry

The soda was found to have a sugar concentration of 9.6% (wt./vol.). How many teaspoons of sugar are in a can of soda? (One can is 12fl.oz or 355mL) (1 teaspoon is approx. 4g)

56. ## Social studies

Which is an event of the progressive era enacted by the local government in south carolina

58. ## Chemistry

20.0 mL of a 0.18 M HCl solution are combined with 50.0 mL of a 0.085 M NaOH solution. What is the pH of the resulting solution?

59. ## algebra

how do you simplify this with a positive exponent: p^8/p^-5

60. ## Chemistry

The radioactive nuclide 18F decays by first order kinetics with a half life of 1.83 hr. How many hours will it take for 68.5% of a give quantity of 18F to decay?

61. ## Chemistry

Calcium hydroxide has Ksp = 5.5 x 10-5 at 25 oC and a molar mass of 74.10 g/mol. How many grams of calcium hydroxide are needed to create 365 mL of a saturated solution of calcium hydroxide at 25 oC?

62. ## Math

Solve the equations to the nearest tenth and use the given restrictions. 2. sin theta = -0.204, for 90 degs < theta < 270 degs Ans: 191.8 degs?

63. ## Calculus

find the area of the region bounded by the curves y=x^2-1 and y =cos(x)

64. ## Chemistry

What is the molality of a solution of aluminum nitrate that contains 77.0 g of Al(NO3)3 dissolved in 120.0 g of water? Use molar masses with at least as many significant figures as the data given.

65. ## College Algebra

A large hotel finds that it can rent 95 rooms when it charge \$100 per room. For each \$1 increase in room cost it rents one room less. (Likewise, for each \$1 decrease in room cost it rents one room more) What price should it charge in order to maximize the

66. ## math- algebra

5 x > 2 x + 18, x € N Please give me the solution to this problem!

67. ## science

How much heat is added to 10 g of water when you start from room temperature and heat it to its boiling point?

68. ## Civics

In which type of government would people elect officials to make government decisions? Monarchy Direct Democracy Representative Democracy*** Autocracy

A flashlight has 8 batteries, 2 of which are defective. If you select 2 batteries, find the probability that You select at least 1 good battery

70. ## Algebra

4x^2 - 3x + 3 = 0 Solve by completing the square

71. ## Algebra

The following equation has three solutions. Look for the greatest common factor, then use the quadratic formula to find all solutions. 10t^5 + 5t^4 = 50t^3

72. ## Analytical Chemistry

Any help/advice on answering this question would be a big help! :) The analysis of lead (Pb) in a sample of solder was carried out using atomic absorption spectroscopy as follows. 1.013 g of solder was completely dissolved in a small volume of nitric acid

74. ## Algebra

x^4 + 6x^2 = -8 Solve the equation.

75. ## Chemistry

Samples of NH3 and 02 are placed in a rigid container. When the equilibrium below is established, the partial pressure of H2O is 0.784 atm. What is the partial erasure of NO when the system is at equilibrium? 4NH3 + 5O2 -----> 4NO + 6H2O

76. ## Algebra

the square root of (x-11) = the square root of (x) - 1 The following equation will require that you square both sides twice before all the radicals are eliminated.

77. ## General

How to get into Nasa after doing aerospace engineering from India? Could you please tell me best universities for aerospace engineering other than IIT's?

78. ## PCM

From which website I can get offline test papers(chapter wise) for preparation of Jee advanced 2015.

79. ## Information Retrieval Architecture and Algorithms

What is the primary problem in Information Retrieval (IR) and what is the objective of an IR system? For each of the “Ingest” steps discuss how decisions on it can affect the primary problem (e.g., can it reduce the problem or have no effect) and the

80. ## Math

Part 1: Suppose you divide a polynomial by a binomial. How do you know if the binomial is a factor of the polynomial? Create a sample problem that has a binomial which IS a factor of the polynomial being divided, and another problem that has a binomial

81. ## Social Studies

What did Isaac Singer do to improve American society? and what did he do that may not have been so good? Isaac Singer invented a way to make improvements to the sewing machine in an effort to boost up the sewingn industry and to create a better reliable

82. ## Computer science(Information Retrieval Architectur

Consider the use of entity identification and categorization. a. What problems are they trying to solve – what are they trying to do. b. How do they affect the list of processing tokens in an item? c. How do they affect the Document Vector for the item?

83. ## Computer science(Information Retrieval Architectur

a. Describe how the statement that “language is the largest inhibitor to good communications” applies to Information Retrieval Systems. b. Relate this to the challenges in information retrieval that make it difficult to find the information a user is

84. ## Computer science(Information Retrieval Architectur

A. Why are inverted files the most typical structure used for search systems? How does n-grams modify the inversion list approach? B. Discuss the similarities and differences between N-gram and PATRICIA TREE approach to indexing.

85. ## physics, doppler effect

"A source of sound of frequency f0 moves horizontally at constant speed u in the x direction at a distance h above the ground. An observer is situated on the ground at the point x=0 (the source passes over this point at t=0). Show that the signal received

86. ## Computer science(Information Retrieval Architectur

Stemming: a. Compare advantages and disadvantages of Porter Stemming algorithm, Dictionary stemming algorithm and Success Variety stemming algorithm. b. Create the symbol tree for the following words (canopy, cars, cabony, cabossy, cabort, cabins, cabity,

87. ## Computer science(Information Retrieval Architectur

PATRICIA TREE: a. Create the PATRICIA Tree and Reduced PATRICIA for the following 01010101010110 to 8 levels of sistrings (level 1 is original string). b. Assuming a search term of 01010101111 calculate the number of comparisons needed for the PAT tree and

88. ## math

Write a function rule for the total cost. One frozen yogurt store sells frozen yogurt for \$3.00 per cup and \$1.25 per topping. Write a linear equation to show the total cost of a cup of frozen yogurt. Then calculate the total price for one cup of frozen

89. ## Computer science(Information Retrieval Architectur

9. Given the following documents determine the weights for Naïve Bayesian category for document to be about “Trees”. Given the new document listed determine if it should be given the category or not. (14 points) Doc1 Oak, Plum, rose, Oak, Oak, Plum,

90. ## Computer science(Information Retrieval Architectur

9. Given the following documents determine the weights for Naïve Bayesian category for document to be about “Trees”. Given the new document listed determine if it should be given the category or not. (14 points) Doc1 Oak, Plum, rose, Oak, Oak, Plum,

91. ## Computer science(Information Retrieval Architectur

Given the following three items where w2, w4, etc. all represent different words. Compare how well the shingle process works in determining which items are near duplicates by looking at the shingles composed of 3 words versus shingles composed of 6 words.

92. ## Physics

A 250kg car initially at rest was travelling with acceleration of 10m/s square. Calculate the kinetic energy after 3 seconds

93. ## Chemistry

A 0.642 g sample of an unknown gas was collected over water at 25 C and 1.04 atm. The collection cylinder contained 151.3 mL of gas after the sample was released. Find the molar mass of the unknown gas?

94. ## Math help!

Hilda has a rectangular garden by the river in front of her house. The area she uses for planting tomatoes is three times as large as that she uses for beets. If she has 270 yards of fencing material to enclose the garden to protect it fro, rodents, will

95. ## algebra

1. There are 4 pounds of lawn seed to a bag. Three pounds of lawn seed covers 1800 square feet. How many bags are needed to cover 8400 square feet? Write and solve a proportion. So the only part of the proportion I currently have written is: 1800/ = 8400/x

96. ## Further maths

Show graphically the solution sets of the following inequalities: (a) X square - 7 * h2 > 0 (b) 3X square - 5X - 2 > 0

97. ## Math help!

Hilda has a rectangular garden by the river in front of her house. The area she uses for planting tomatoes is three times as large as that she uses for beets. If she has 270 yards of fencing material to enclose the garden to protect it fro, rodents, will

98. ## math

a red rosebush has three times as many brooms as a punk rosebush. together they have 48 blooms . which of the following is the number of blooms on the red bush?

99. ## Biology

What is osmosis

100. ## Math

Look for the probability for an experiment of which requires you to select one card from a standard deck of 52 playing cards. Write your final answer as a fraction in the simplest form of a/b. 1.) P(the card is not a face) 2.) P(the card is a king) 3.)

If

102. ## PHYSICS

How do I solve this? A satellite has a mass of 5949 kg and is in a circular orbit 4.07 × 105 m above the surface of a planet. The period of the orbit is 1.9 hours. The radius of the planet is 4.55 × 106 m. What would be the true weight of the satellite

103. ## Math

A printing company makes plastic banners 15 ft long by 6 feet wide. How many square meters is the banner? Use 1 foot=0.305meters

104. ## math

are this correct- x-7=18 x-7=18+7 x=25

105. ## math

If i had a pizza, and i ate4/8 of the pizza and my sister ate 3/8 of the pizza, how much pizza did we eat

106. ## Math

How do I work out this problem? And then compare it to 1 whole. 0.003 * 10^2=

107. ## math

X|-2|0|2|4| Y|-4|0|4|8| Do the values in the table represent a linear function? If so what is the function rule? A. The values do not show a linear function. B. Yes, the values show a linear function; y=1/2x+4. C. Yes,the values show a linear function;

108. ## Math 222

Posted by Tika on Monday, April 27, 2015 at 12:44pm. How do I make a perfect square. Sorry my addition key isn't working y^2-18y plus______

if one person is infected and five successive handshakes follow, how many are infected?

110. ## Math/ Algebra

Labor Relations Worksheet: Did you hear about the ........ that offers a course for ......... .......? It's called .... ..........(.) #'s (1-27) 1.) (x-4)(x+3)

111. ## Math 222

Posted by Tika on Monday, April 27, 2015 at 1:08pm. what is the value of the discriminant and of the real solutions of the quadratic equation? 5x^2-9x plus 2 equals 0

112. ## Chemistry

Hi, Iodine has 53 electrons and configuration of: 2, 8, 18, 18, 7. Why does the fourth shell not reach maximum and therefore it picks up 7 electrons and begins a new shell. Thank you.

113. ## College Algebra

A rectangular enclosure is to be constructed with 2,000 feet of fence in order to have four sections, as in the diagram below. What should be the dimensions in order to maximize the area enclosed? What is the maximum area? (So the diagram is just four

114. ## Math 222

Posted by Tika on Monday, April 27, 2015 at 1:03pm. How do I write an quadratic equation whose roots are -1 and -2 and whose leading coefficient is 1. Sorry my equal key does not work blank equals 0

115. ## math

The area of the base of a rectangular juice box is 4 1/2 square inches. If the volume of the box is 18 cubic inches, how tall is the box?

116. ## Math 222

Please help me with this problem The sum of two numbers is 47, the smaller number is 23 less than the larger number. What are the two numbers?

118. ## English

"The Cask of Amontillado" Poe's use of a(n) _________________ narrator to tell the story heightens the uncertainty and sense of horror felt by the reader.

119. ## math

Solve each equation for 0

120. ## Math 222

Please help me solve this problem? The first mechanic worked 10 hours and the second mechanic worked 5 hours. Together they both charged a total of \$1250 for their work. Their sum of two rates is \$165 per hour. So how much did the first and second

121. ## math

Prove the identity: tan^2O/ 1 + tan^20 = sin^20 I get 1=1, but others have got sin^2=sin^2 Who's right?? Because there is no answer for this question at the back of the book

122. ## Math

I know how to find the surface area of a rectangular prism but, I am not sure when given the coordinates of 4 feet by 6 feet by 8 feet which is which? For example: height, width, length? I don't know which way it goes? Thank You very much for any help you

123. ## MATH

Abby, Betty, Cassie, and Dale need to cross the river on a boat. The boat only fits at most two people. If two people go over one must bring it back for the others. Abby takes 1 min., Betty 2 min., Cassie takes 5 min., and Dale takes 10 min.. The time it

124. ## stats

If a widget's reliability is represented by an exponential distribution with beta = 75 (weeks). What is the 50% life expectancy – e.g. the length of time where the reliability = 50%?

125. ## english

Traditional african marriage is an advantage for men yes or n o?

126. ## Algebra

At Central High School, the sophomore class has 60 more students than the freshman class. The junior class has 50 fewer than twice the number of students in the freshman class. The senior class is three times as large as the freshman class. If there are a

127. ## Math 222

Please help me with inequalities?\ 2x-1>-3 and 4x plus 5>-19 I tried doing this problem, but I am lost.

128. ## Economics

Suppose the market wage for farmers is \$10 per hour in country A and \$20 per hour in country B, there is the same number of people in both countries, there is the same amount of arable land, and initially there is no way for farmers to move between A and

129. ## World Geo, Help pls

3. According to Aborigine spiritual beliefs, the Earth is (1 point) a place of unending suffering and pain. a source of wealth to conquer in the name of one's ancestors. an ancient gift of the gods. a place where humans were banished from the gods. 4. All

130. ## Safety

Walk with a _______to be safe. A. buddy B. cane C. dog D. phone a or d? i think a but d makes sense too.

131. ## 6th Grade Math Inequalities

The maximum weight allowed on The Wildcat ride is 221 pounds. Your friend weighs 60 pounds. To be able to ride in a car together, how much can you weigh? Write and solve an inequality. Is this the correct answer?: x + 60 ¡Ü 221; at most 161 pounds?

132. ## ART 101 ART APPRECIATION

Review the “Questions Art Historians Use” section in the Introduction of the textbook. Select two of the five questions. Explain what art historians are trying to gain by asking each question and how they might go about finding an answer.

133. ## Physics

An equal amount of heat is transferred to two containers containing water at the same temperature. If the second container contains three times as many water molecules as the first, how do the final temperatures compare?

134. ## life orientation

Mention any four kinds of fraudulent activities that students who receive and repay nesfas should guard against committing

135. ## Math 222

How do I use substitution to solve the system? Please help Addition and equal key is not working -5x plus 2y equal 16 y equal 2x plus 7

136. ## Physics

Can someone help me solve this? I've tried it a few times, but I keep getting answers that seem off. Like, for example, I'm getting 2.339 for part A, and it just seems completely off. So if you know the right formulas and can walk me through this, I'd

137. ## math

A community group bought 25 tickets to a play. Adult tickets cost \$30 each and student tickets cost \$20 each. In all, the group spent \$620 on the tickets. Determine if each equation is a part of the system of equations that can be used to find the number

138. ## probability

call from Example 1 that whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing three red marbles, two green ones, four white ones, and two purple ones. She grabs eight of them. Find the probability of the

139. ## polynominals

The number of trout in America, since 1970, is given by the following: y = x^2 + 3x + 2, where x is the number of years and y is the number of trout in millions. What is the number of trout in the years 1975, 1980, and 1985?

140. ## math

Sam has 18 coins in his pocket that are either quarters or nickels. The total value of these coins is \$3.90. Let q represent the number of quarters and n represent the number of nickels. The following system of equations represents this situation: q+n=18

141. ## Math help!

A collection of forty-three coins consists of dimes and quarters. If the total value is 7.60, how many dimes and how many quarters are there?

142. ## Physics

A 20 C charge experiences a 2 N force in an electric field. What is the strength of the electric field?

143. ## Math help!

A car goes 18 miles on a gallon of gas in city driving and 24 miles on the highway. If the car goes 465 miles on a full tank of 23 gallons of gas, how many miles were driven in the city and how many miles were driven on the highway?

144. ## Math help!

For the quadratic function f(x) = 2x^2 - 16x + 27 The Vertex = ___? f(x) attains a maximum minimum value of ___? The axis of symmetry is___? The x-intercepts are___? and The y-intercept is ____?

145. ## Math help!

Reduce the equation 3/x + x/3 = -5/2 to the standard form of a quadratic equation ax^2+bx+c=0. The quadratic equation is___?

146. ## chemistry

Which way will the equilibrium shift when subjected to the following changes? 2NOBr + heat 2NO +Br2? NO is addded temp. doubled Br2 removed Pressure increased I said: reverse, forward, forward, forward

147. ## Math 222

Posted by Tika on Monday, April 27, 2015 at 5:11pm. Posted by Tika on Monday, April 27, 2015 at 1:03pm. How do I write an quadratic equation whose roots are -1 and -2 and whose leading coefficient is 1. Sorry my equal key does not work blank equals 0

148. ## Math 222

Homework Help: Math 222 Posted by Tika on Monday, April 27, 2015 at 5:10pm. Posted by Tika on Monday, April 27, 2015 at 1:08pm. what is the value of the discriminant and of the real solutions of the quadratic equation? 5x^2-9x plus 2 equals 0

149. ## Math 222

Posted by Tika on Monday, April 27, 2015 at 5:08pm. Posted by Tika on Monday, April 27, 2015 at 12:44pm. How do I make a perfect square. Sorry my addition key isn't working y^2-18y plus______

150. ## math

Find the periodic payment R required to amortize a loan of P dollars over t years with interest charged at the rate of r%/year compounded m times a year. (Round your answer to the nearest cent.) P = 30,000, r = 5, t = 20, m = 4

151. ## geometry

What will happen to the circumference and the area of the maze a fun house maze that is circular in shape has a diameter of 50 feet. the owner decides to double the radius of the maze?

152. ## Algebra 222

How do I use substitution to solve the system? Please help Addition and equal key is not working . It's asking for x equals and y equals. -5x plus 2y equal 16 y equal 2x plus 7

153. ## Social Studies I NEED HELP PLEASE!!!

Which best describes how land ownership changed after Ukrainian independence? A. land ownership has stayed the same B. lands formerly owned by the state have been privatized. C. lands formerly owned by individuals have been seized by the state D.

154. ## critical numbers

How would I find the critical numbers of f'(x)=(x-3)^3(x+4)(x^2+1)? The answer is x=-4, x=3

155. ## economics

What is the south African government providing and to whom?

156. ## Algebra 222

Please help me solve these using interval notations? C equals {w|w > 1} D equals {w|w greater than less than 5}

157. ## Math

Solve the equations to the nearest tenth and use the given restrictions. 1. tan theta = 8.055, for 90 degs < theta < 270 degs. Ans: 262.9 degs?

158. ## LA

Computers make calculations incredibly quickly. intransitive or *transitive verb*? They perform many tasks that people often find boring and difficult. transitive or *intransitive*?

159. ## geometry

What is the value of x? Justify each step. AC=32 2x 6x+8 .__________________._________________. A B C Drawing not to scale AB + BC = AC a.segment addition postulate 2x + 6x + 8 =32 b.substitution 8x + 8 = 32 c.simplification 8x = 24 d.addition property of

161. ## AP Calc B/C

If the rate of change of the population is proportional to the population and the population of a country doubled in 35 years, what is its yearly rate of increase? I don't remember how to do this at all, so I really don't know how to start the problem.

162. ## Maths

Ranee keeps £360 in a savings account for a year. At the end of the year she gets £13.50 in interest.Work out the interest rate on the account.Give your answer as a percentage. What's the answer guys and girls

163. ## science

When comparing the flow of lymph in the lymphatic system with the flow of blood in the circulatory system, it can be said that the lymphatic system also A. contains fluid that travels in a closed circuit. B. uses a pump. C. contains fluid that travels in

164. ## hard math

I'm having so much trouble doing this worksheet I had for math I don't even know what to do now 👉 and I have to turn it in by Friday 😭 I feel so dumb right now 😞

165. ## Math 222

How do I make a perfect square. Sorry my addition key isn't working y^2-18y plus______

166. ## Moles

How many moles of each of the following are needed to give the same freezing point lowering as 5.0mol of the nonelectrolyte ethylene glycol in 1 kg of waterCH3−OH, a non electrolyte,KNO3, a strong electrolyte I am so lost with what they exactly want for

167. ## English 4

In the excerpt from Hard Times, Dickens refers to an “adversary.” What is the meaning of this word? In the context of the final paragraph of the excerpt, who or what is the adversary being discussed? An adversary is generally considered to be a person,

168. ## English

In this sentence, f has to be omitted. Should f be italicized?

169. ## Maths

In a sale of electrical equipment, the price of all goods is reduced by . Work out the sale price of the following. a A DVD player which normally costs £88 b A portable audio player which normally costs £150 c A laptop computer which normally costs £986

170. ## Math 222

How do I write an quadratic equation whose roots are -1 and -2 and whose leading coefficient is 1. Sorry my equal key does not work blank equals 0

171. ## chemistry

A 3.50L sample of neon gas has a pressure of 0.950 atm at 20 degrees C. What would the volume be if the pressure increased to 1.50 atm and the temperature remained constant?

172. ## Math

Part 1: Suppose you divide a polynomial by a binomial. How do you know if the binomial is a factor of the polynomial? Create a sample problem that has a binomial which IS a factor of the polynomial being divided, and another problem that has a binomial

173. ## math

the volume of a cylinder is 54cm cube.calculate the volume of the cone.

174. ## English 4

Use your own words to explain why Helen’s thoughts do not wander when Miss Temple is teaching her. No not really because mis temple always has something to say and its always something new, and every time she says something its always agreeable.

175. ## Math

Calculate the average rate of change of the function from θ = π/10 to θ = π/8. (Round your answer to two decimal places.) f(θ) = 9 sin(9θ)

176. ## English

I need help writing a strong on the point thesis. What is the effect exercise has on stress, health, and aging? It's for research paper. This is what I have - Although exercise may cause pain and discomfort, it benefits overall health in the long run

177. ## English 4

In line 18 of Auden’s “In Memory of W. B. Yeats.” The poet Yeats is described as being “scattered among a hundred cities” after his death. Explain what the speaker means by this phrase. The speaker means that nobody really cared about his death.

178. ## Math

If 5 times a number n is subtracted from 15, the result is negative. Which of the following gives the possible value(s) for n? A. 0 only B. 3 only C. 10 only D. All n is greater than 3 E. All n is less than 3

179. ## Chemistry

How much SO2 is needed to saturate 50g of H2O at 5 degrees Celsius

181. ## math

I want to check my answers 1. The town population increased from 80,000 to 90,000 in ten years. What was The percent of increase? 2. A \$15 item on sale for \$12 is marked down what percent 3. If Jenna buys an item for 40% off the regular price will he pay

182. ## chemistry

q4 What element has the greatest first ionization energy? Li Na K Rb Cs

183. ## Maths

A football match between United and City is watched by 24 000 spectators. Of the 24 000 spectators, 14 112 support United and 8208 support City. The rest of the spectators are neutrals who support neither team. a.Work out the percentage of the 24 000

184. ## Calculus

How would I find the second derivative if f(x)= √(x^3+2) using the quotient rule. I got to the step where [(12x√(x^3+2))-(9x^4/√(x^3+2))]/4(x^3+2) how would i go from that to: (3x(x^3+8))/(4(x^3+2)^3/2)

185. ## chemistry

An atom whose nucleus contains 7 neutrons and which has a mass number of 12 is an isotope of what element?

186. ## Social Studies

Explain the following quote as it applies to Reconstruction: “The slave went free; stood a brief moment in the sun; then moved back again toward slavery.” In response, identify the purpose of Reconstruction in the South after the end of the Civil War.

187. ## Accounting

Louis Welch is general manager of United Salons. During 2014, Welch worked for the company all year at a \$10,200 monthly salary. He also earned a year-end bonus equal to 10% of his annual salary. Welch’s federal income tax withheld during 2014 was \$850