1. where does the conversation current in the mantle obtain its heat energy? a. earths core and crust b. earths mantle c. earths core and mantle*** d. earths mantle 2. How do convection currents cause movement of earth's plates? a. The weathering of rocks

2. math

1. A bag contains 9 tiles numbered 1 to 9. P(4) = 1/9. what type of probability is illustrated and why? (1 point) . experimental; the result is found by repeating an experiment. . experimental; the result is based on the number of possible outcomes.**** .

3. math

a basket contains the following pieces of fruit: 3 apples, 2 oranges, 2 bananas, 2 pears, and 5 peaches. Jameson picks a fruit at random and does not replace it. Then Brittany pricks a fruit at random. What is the probability that Jameson gets a banana and

4. math help!!!

stuck!! pls help/explain!!! 2. Do the values in the table represent a linear function? If so, what is the function rule? (1 point) x = -2, 0, 2, 4 y = -4, 0, 4, 8 The values do not show a linear function. Yes, they show a linear function; y = x + 4. Yes,

5. math

Use the graph below to answer the following question. 1.   Find the slope.  (1 point) 2 – –2 Use the graph below to answer the following question. 2.   Find the slope of the line. Describe how one variable changes in relation to the other.

6. science

why would Hooke's discovery have been impossible without the invention of the microscope? A. Because all living things are made up of cells. B. Because cells are too small to see without a microscope C. Because cells are the building blocks of life D.

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7. math

simplify 10p4 A. 210 B. 360 C. 5,040 D. 151,200 simplify 9c4 A. 126 B. 15,120 C. 5 D. 3,024

8. math

a bag contains 7 green marbles, 9 red marbles, 10 orange marbles, 5 brown marbles, and 10 blue marbles. you choose a marble, replace it, and choose again. what is P(read, then blue)? A. 77/164 B. 19/41 C. 90/1681 D. 45/41

9. math

Food Express is running a special promotion in which customers can win a free gallon of milk with their food purchase if there is a star on their receipt. So far, 129 of the first 138 customers have not received a star on their receipts. What is the

10. Chemistry

You can purchase hydrochloric acid in a concentrated form that is 37.0 hcl by mass and has a density of 1.20g/mL. Describe how exactly you would prepare 2.85 L of 0.500 M HCL from the concentrated solution.

11. British Literature

1. Compare and contrast the conflicts faced by Orwell in “Shooting an Elephant” to those faced by Gideon in “No Witchcraft for Sale.” To what unique revelation does Orwell’s position as a police officer lead him? How can Gideon’s ultimate

12. math

a number cube is rolled 150 times. the number 3 comes up 43 times. hat is the experimental probability of rolling a 3? what is the theoretical probability of rolling a 3? A. 43/150 ; 1/6 B. 43/150 ; 1/50 C. 1/6 ; 43/150 D. 3/43 ; 1/6

13. Chemistry - Science (Dr. Bob222)

The following reaction has a positive value of ΔG°. 2H2O(g) → 2H2(g) + O2(g) Which of the following statements must be true? A. The reaction is slow. B. The reaction will not occur. That is, when H2O(g) is introduced into a flask, no O2 or H2 will form

14. math

mera painted equal sections of her bedroom wall to make a pattern. She painted 2/5 of the wall white and 1/2 of the wall lavender. Write an equivalent fraction for each using a common denominator.

A rock climber grasps onto a ledge in the rock wall. How do the bones and muscles in his arm interact to allow him to hold on? photo of a man climbing a rock wall All of the muscles in his arm contract to hold his arm in position. His arm muscles work in

What are the next three terms in the sequence? –1, 9, 19, 29, … (1 point) 38, 37, 32 40, 51, 62 39, 49, 59 38, 47, 56 2. Geoff planted dahlias in his garden. Dahlias have bulbs that divide and reproduce underground. In the first year, Geoff’s garden

17. Statistics

A survey of 250 lobster fisherman found that they catch an average of 32 pounds of lobster per day with a standard deviation of four pounds. If a random sample of 30 lobster fisherman is selected, what is the probability that their average catch is less

18. Math

A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. you choose a marble, replace it, and choose again. what is P(red then blue.)

19. SCIENCE

1. where does the conversation current in the mantle obtain its heat energy? a. earths core and crust b. earths mantle c. earths core and mantle*** d. earths mantle 2. How do convection currents cause movement of earth's plates? a. The weathering of rocks

20. ALGEBRA

Which set of lengths could be the side lengths of a right triangle? (1 point) • 20 cm, 22 cm, 29 cm • 10 ft, 12 ft, 15 ft • 7 km, 24 km, 28 km • 13 in, 84 in, 85 in

21. Math

A carpenter has several boards of equal length. he cuts 3/5 of each board. After cutting the boards, the carpenter notices that he has enough pieces left over to make up the same length as 4 of the original boards. How many boards did the carpenter start

22. science

A transmission electron microscope was used to examine a microscopic organism. No nucleus was found. Which of the following correctly describes the organism? A. The organism is a prokaryote. B. The organism is a eukaryote. C. The organism is not alive. D.

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23. Algebra

Pls help me with these problem solving sums ----------------------------------------- 1)You are building a rectangular brick patio surrounded by crushed stone in a rectangular courtyard.The crushed stone border has a uniform width x (in feet) you have

Which of the following explains how natural selection leads to evolution? A. Conditions in the environment reduce competition for resources within a species. B. Helpful variations accumulate among surviving members of the species. C. Overproduction

25. chemistry

The solubility of AB(s) in a 1.000-M solution of C(aq) is found to be 0.121 M. What is the Ksp of AB?

26. environment

Oil spills and leaks in the Pacific Ocean have harmed marine organisms and the environment. Which kind of environmental issue is illustrated by this example?

27. science

before beginning any land development project, people should carry out a _________ analysis to consider all of the potential impacts of the project on the local ecosystems.

28. Math

You have six \$1 bills, eight \$5 bills, two \$10 bills, and four\$20 dollar bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. What is P(\$1, then \$10)? A. 77/190 B. 3/100 C.3/95 D.2/5

29. math

Chad buys peanuts in 2 pound bags. He repackages them into bags that hold 5/6 pound of peanuts. How many 2 pound bags of peanuts should Chad buy so that he can fill the 5/6 pound bags without having any peanuts left over?

30. science

Dust mites are microscopic bugs that are too small to see with a dissecting microscope. To see the details of a dust mite’s skin, which of the following microscopes would you use? A. dissecting microscope B. compound microscope C. transmission electron

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31. trig

a carousel has eight evely spaced seats shaped like animals. During each ride, the carousel makes between 8 and 9 clockwise revolutions. At the end of one ride, the carousel stops so that the lion is in the position where the zebra was when the ride

32. CHEMISTRY HELP !!!!

what is the formula for dicyanobis (ethylenediamine) zirconium (IV) nitrate? Thanks!!!

33. Social Studies

How did British colonial practices in South Asia reflect the East India Company's practices? A. Tea and coffee were harvested and spices were traded by the East India Company, from which the British wanted to make India a colony. B. Under British

34. URGENT Physics help

An attractive force of 7.2 N occurs between two point charges that are 0.10 m apart. If one charge is 4.0 µC, what is the other charge? (µC = 1.0 × 106 C) (Points : 3) 1.0 µC 2.0 µC +1.0 µC +2.0 µC Which substance is most easily grounded? (Points :

35. Science

Which of the following occurs during artificial selection, but not during natural selection? A. Selection pressures result in only certain traits from a population being passed on to offspring. B. Traits are passed to offspring through genes. C. Males and

36. Social Studies

Because of the rich soil, migration has taken place to South Asia's A. gorges in the mountains B. Himalayas C. plateau regions D. flood plains D?

37. math

The ABC Toy Company is creating two similar pieces for a board game as shown below. Find the value of b that makes the two pieces similar.

38. Maths

The jade restaurant has a large aquarium on display in its lobby the base of the aquarium is 5feet by 2 feet the height of the aquarium is 4feet him many cubic feet of water are needed to completely fill the aquarium?

39. Algebra

Triangles ABC and DEF are similar. Find the area of triangle ABC. Round your answer to the nearest tenth. Triangle ABC has a base of 12m. Triangle DEF has a base of 18m and height of 12m

40. math

Solve the problem. An average library contains at least 50 and at most 250 books. How many library owners must be polled to be certain that at least two owners have the same number of books in their libraries?

41. Math

The teacher gave this pattern to the class: the first term is 5 and the rule is add 4, subtract 1. Each student says one number. The first student says 5. Victor is tenth in line. What number should Victor say?

42. CHEMISTRY HELP !!!!

Complete the following fission reaction 1/0 n + 235/92 U ---> 236/92 Te + _____ +2 (1/2)n a) 97/40 Zr b) 99/40 Zr c) 99/38 Sr d) 95/42 Mo e) 96/41 Y Answer is A or B not sure

43. Matrices

A triangle has vertices (1, 4), (1, 1), and (−3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90° counterclockwise about the origin. What are the vertices of the image of the triangle

44. English

When previewing the following lines from Sonnet 18, how many sentences should readers plan to read fluently? So long as men can breathe, or eyes can see, So long lives this, and this gives life to thee. A. two B. none C. four D. one

45. Math

A box contains 95 pink rubber bands and 90 brown rubber bands. You select a rubber band at random from the box. Find each probability. Write the probability as a fraction in simplest form. a. Find the theoretical probability of selecting a pink rubber

46. english

Which of the following lines from the story is an example of indirect characterization? A. “The old lady had not heard him; only Chig had heard.” B. “She smiled. She had all her teeth, but they were too perfect to be her own.” C. “They had been

47. science

Dust mites are microscopic bugs that are too small to see with a dissecting microscope. To see the details of a dust mite’s skin, which of the following microscopes would you use? A. dissecting microscope B. compound microscope C. transmission electron

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48. Math

In Magic Diamond use numbers 1-12. Each row must equal the same sum. # # # # # # # # # # # #

49. Physics

. How much heat does it take to melt 2.5 kg of lead when it is at its melting point (m.p. = 327.5°C; Hf = 2.04 × 104 J/kg)? 6.2 × 101 J 8.2 × 103 J 5.1 × 104 J 1.7 × 107 J

50. Math

The columbia icefield is located between banff and jasper in Alberta. It covers an area of more than 300 km squared and has ice that is up to 365 m thick in some places. How can studying this icefield give scientist information on climate patterns

51. social Studies! MRS.SUE!?

1. What effect did the suffrage movement have on women in South Carolina? A. women gained the right to work outside of the home B. women gained the right to belong to political parties C. women gained the right to attend public schools D. women gained the

52. MATH

Please help me solve this problem. My grandfather has a big collection of silver dollars and 50 cents pieces. He promised to give one fourth of his collection to the first of his grandchildren, who can figure out the total value of his coins. The only

53. life orentation

list and discuss any four factors that could threaten or limited the core functions of the media

54. science

What is the function of the nucleus in a cell? A. The nucleus controls the cell’s activity. B. The nucleus identifies a cell as belonging to a plant. C. The nucleus determines what substances enter and leave the cell. D. The nucleus can be seen under a

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55. literature

2. Studying the plot elements in "A Pair of Silk Stockings," you might reasonably conclude that the essence of her story A. is found in its sensual descriptions. B. reflects the despair of daily life. C. emphasizes the hardship of poverty. D. is identical

56. social studies

During the War of 1812 The Americans won a victory at a)Detroit b) The Thames c) Quebec Answer: B The English were able to land an army and capture the city of a) Washington b) Baltimore c) New York Answer: A "The Star Spangled Banner" was written during

57. Social Studies

Farmers who farm in the northern Indo-Gangetic plain in South Asia rely more massively on A. drenching rain brought by cool air B. essential moisture brought by monsoons C. water carried by rivers which comes from the Himalayas. C?

58. language and early literacy

Describe the factors that cause diversity in language.Give example

59. english

should african slaughter rituals be aloowed in the suburbs?

60. science

which of the following is not part of cell theory? A. cells are the building blocks of life B. all living things are made up of cells C. all cells are created from other cells though cell division

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61. Algebra

For their homecoming parade the students of U-Math have created a colorful banner, 53 meters in length, that is made of two pieces of parachute material. The short piece is 19 meters shorter then the long piece. Find the Length of each piece. Length of the

62. chemistry

200cm^3 of 1.0 mol dm^-3 sulphuric acid,H2SO4 is poured into a 250 cm^3 volumetric flask.Distilled water is then added to make 250 cm^3 of solution. (a)What is the molarity of the diluted acid solution? (b)What is the volume of 1.6 mol dm^-3 sodium

63. math

each of two urns contains green balls and red balls. urn I contains 8 green balls and 12 red balls. Urn II contains 5 green balls and 8 red balls. if a ball is drawn from each urn, what is P(red and red)? A. 79/65 B. 24/65 C. 20/33 D. 2/13

64. chemistry

A cylinder contains 40 g of HE, 56 g of N2, and 40 g of Ar. How many moles of each gas are in the mixture?

65. Algebra

There are three times as many people in the psychology class as in the art history class. there are 16 more people in the algebra class then the art history class The total enrollment of the three classes is 86. How many students are enrolled in each

66. Calculus

SOS...help!!! please email me at 969e221 at g mail. com here is the question: Find the trapezoid of largest area that can be inscribed in the upper half of the ellipse x2/9 + y2/4 = 1 where the lower base of the trapezoid is on the x-axis and is 6 units

67. social studies

1. During the War of 1812, the Americans were fighting for a) self-government b) freedom of the seas c) freedom from England Answer is B 2. The Americans were most successful on a) sea b) Lake Champlain and Lake Erie c) on land Answer: B 3. The English

68. Language Check Ms.Sue

Choose correct capitalization, punctuation, and spelling. 1. Thank you for you're prompt response to my request information about traveling to Australia. A. Thank you for youre B. Thank you for youre' C. Thank you for your D. Thank you for your' E. Correct

69. Physics

On a roller coaster ride the cart is 250 kg. Initially, the cart is traveling at 5 m/s at the upper level, and then 25 once it reaches the flat lower level that is 8 m off the ground. How high up is the upper level?

70. Math

Jamal invested \$5000.00 in an account that earns 2.50% simple interest per annum for a term of 10 years. A.) How much interest will he earn? B.) How much will his investment be worth at the end of the term?

71. science

What is the function of the nucleus in a cell? A. The nucleus controls the cell’s activity. B. The nucleus identifies a cell as belonging to a plant. C. The nucleus determines what substances enter and leave the cell. D. The nucleus can be seen under a

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A field is bound on one side by a river. A farmer wants to enclose the other three sides of the field with fence in order to create a rectangular plot of land for his cows. If the farmer has 400m of fence to work with, determine the maximum possible area

73. physics

A 60.0 kg box is lifted straight upward by a rope, a distance of 10.0 meters, at constant speed. How much power is required to complete this task in 5.00 seconds?

74. life orientation

list and discuss four factors that could threaten or limit the core functions of the media

75. computer assisted legal research part 2

There seems to be 2 answers to #11 of exam #00803701. Not sure which one to use

Write the sum of the two vectors as an ordered pair. (6,-5) and (3,3) A. (-,-2) B. (6,1) C. (1,6) D. (-2,9)

77. physics

A 70 kg man holding a 0 . 857 kg ball stands on a frozen pond next to a wall. He throws the ball at the wall with a speed of 11 . 9 m / s (relative to the ground) and then catches the ball after it rebounds from the wall. How fast is he moving after he

78. (11) Chemistry - Science (Dr. Bob222)

In the following hypothetical reaction A + B → C + D, the equilibrium constant, Keq is less than 1.0 at 25°C and decreases by 35% on changing the temperature to 45°C. What must be true according to this information? A. The ΔH° for the reaction is

79. CHEMISTRY HELP !!!!

Al3+ is reduced to Al(s) at an electrode. If a current of 2.75 ampere is passed for 36 hours, what mass of aluminum is deposited at the electrode? Assume 100% current efficiency. a. 9.2 x 10–3 g b. 3.3 x 101 g c. 9.9 x 101 g d. 1.0 x 102 g e. 3.0 x 102 g

80. CHHS

A a ferris wheel has a diameter of 100ft. The passengers ride in cars that make 5 revolutions in 7.5 minutes. Approximately how far does a car on the Ferris wheel travel in 1 minute

81. Math

A man owns a rectangular piece of land. The land is divided into four rectangular pieces, known as Region A, Region B, Region C, and Region D. One day his daughter, Nancy, asked him, what is the area of our land? The father replied: I will only tell you

82. social studies

THE WAR OF 1812 After capturing Washington, the British attacked what city, which they failed to capture? New York, Statton Island

83. chemistry

.256g unknown acid is titrated with .12M NaOH. It requires 34.8ml of base to reach the equivalence point. What is the molar mass of the acid?

85. Social Studies

8. Which of the following statements about the ancestry of most of the people of Central America is most accurate? (2 points) People in Central America are of African ancestry. People in Central America are of mestizo ancestry. People in Central America

86. chemistry

Solution A:50cm^3 of 1.0mol dm^-3 hydrochloric acid,HCl Solution B:10cm^3 of 2.0mol dm^-3 hydrochloric acid,HCl (a)Calculate the number of moles of hydrochloric acid,HCL in each solution. (b)Solution A and B are mixed together. (i)Calculate the number of

87. Social Studies

How do monsoon winds impact South Asia? A. Rain is carried from the Arabian sea to India from June-September. B. Rain is carried from the Bay of Bengal to Bangladesh and India. C. Rain is carried from the Arabian Sea to Pakistan and Afghanistan. I think A,

88. social studies

How did the Fugitive Slave Act and the Kansas-Nebraska Act further divide the North and South? What role did the concept of popular sovereignty play in these conflicts? Do you think there was any way to avoid the violence that came out of this era?

89. chemistry

A student dissolved 3.65 g of hydrogen chloride gas,HCL in water to make 1.0dm^3 of solution.Calculate the volume of a 0.1 mol dm^-3 barium hydroxide,Ba(OH)2 solution required to completely neutralise 25.0 cm^3 of the acid solution.(RAM:H,1;CL,35.5)

90. science

Pennsylvania have made their way down into the Chesapeake bay in Maryland. This is an example of _____pollution?

91. CHEMISTRY HELP !!!!

If a nucleus undergoes beta particle emission a. its atomic number decreases by four and its mass number decreases by two. b. its atomic number decreases by two and its mass number decreases by four. c. its atomic number increases by one and its mass

92. Math 12

A bag contains 5 red, 3 green, and 6 marbles. If a child grabs three marbles, find P(at least 2 blue marbles).

93. math

Diane plans to drive 30 miles to her interview. If she averages 25 miles per hour, how long will it take her to get there? Answers: (A) 50 minutes (B) 55 minutes (C) 1 hour and 12 minutes (D) 1 hour and 20 minutes

94. Social Studies

1. During the War of 1812, the Americans were fighting for a) self-government b) freedom of the seas c) freedom from England Answer is B 2. The Americans were most successful on a) sea b) Lake Champlain and Lake Erie c) on land Answer: B 3. The English

95. chemistry pls help me asap

100cm^3 of a sodium hydroxide,NaOH solution contains 4.0g of solid sodium hydroxide,NaOH.40 cm^3 of phosphoric acid,H3PO4 is needed to neutralise 40cm^3 of the alkali.(RAM:H,1;O,16;Na,23;P,31) (a)Calculate the molarity of the sodium hydroxide,NaOH

96. math

Bay Area Rental Cars charges \$18 a day and \$.14 per mile for renting a car. You rented a car for 4 days and drove 313 miles. Find your total cost for renting the car.

97. Chemistry

Calculate the Molarity of the solution that contains 43.5 grams of K2SO4 in a total volume of 250ml.

98. Science

Define " force ". State the correct units for measuring force.

99. Math

A glass held 2/5 cup of water, Carlo poured out 3/8 cup, how much is left?

100. Algebra

eight times the difference of a number and three is equal to six times the sum of a number and one 8(x+3)=6(x+1) is this right?

101. Statistics

Problem: you work for a manufacturer of tires (average life of your tires is 60.000 km with a standard deviation of 8.000 km). A supplier offers you new material that he says will increase by 10% the mileage of the tires you produce. A) What are the

102. science

My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be

103. science

My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be

104. science

4. How would increasing the proportion of land (sand) to water affect the amount of water vapor released?

105. Chemistry

Consider an aqueous solution that contains 22 % (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 215.2. The density of the solution is observed to be 1.12 g/mL. What is the molarity of Z in this solution? Answer in grams

106. Language Check 2 Ms.Sue

Correct capitalization, punctuation, and spelling. 1. We keep a variety of emergency equipment in the trunk of our car, a first-aid kit, jumper cables, a blanket, a flashlight, and road flares. A. car a first-aid B. car: a first-aid C. car; a first-aid D.

107. Geometry

Kevin has a salt water aquarium.As Shown below in the shape of a rectangular prism. ( base 36 in, width 18in,height 20 in) . When a rock is submerged into the aquarium the water level rises 0.25 inches. What is the voulume of the rock ?

108. Calculus

How much should be deposited into an account today if it is to accumulate to \$32400 in 30 years if the account bears interest at 8.01% compounded monthly? I did A = 32400(1 + 0.0801/12)^(12*30) = \$355,375, but that's wrong...

109. Physics

A 3.0 kg block is moved up a 37 incline under a constant horizontal force of 40.0 N. The coefficient of friction is 0.10 and the block is displaced 2.0 m up the incline. Calculate the change in the kinetic energy of the block.

110. Physics

A 3.0 kg block is moved up a 37 degree incline under a constant horizontal force of 40.0 N. The coefficient of friction is 0.10 and the block is displaced 2.0 m up the incline. Calculate the change in the kinetic energy of the block.

111. Math

Triangle ABC is an isosceles triangle with angle A= 40 degrees. Give three possible values for angle B

112. MATH

LIGHT TRAVES AT 186,300 MILES PER SECOND. IF IT TAKES 8.32 MINUTES FOR LIGHT TO TRAVEL TO EARTH FROM THE SUN, HOW FAR AWAY FROM EARTH IS THE SUN. WRITE YOUR ANSWER IN SCIENTIFIC NOTATION.

113. calculus help

Find the derivative of the function. y = integral from cosx to sinx (ln(8+3v)) dv lower limit = cosx upper limit = sinx y'(x) = ????

114. Algebra

Write the other number or expression in terms of the given variable. A 3 foot board is cut into two pieces. If one piece measures x write the expression for the length of the other piece. Ok now I know the first term is 2x correct? where do I go from here?

115. Science

Three identical 10 micro farad capacitors are connected in series across a 100V DC supply...calculate the total charge

116. Social Studies

After capturing Washington, the British attacked what city, which they failed to capture? New York, Statton Island

117. science

My answers are in the brackets Nitrogen is cycled through an ecosystem by both plants and ?(animals). Decomposers break down dead organisms and their waste products to release ?(ammonia) in a process called ?(nitrification) These ?(decomposers) can then be

118. chemistry

The volume of 0.15 mol dm ^-3 sulphuric acid,H2SO4 required to completely neutralise 25.0cm^3 of potassium hydroxide,KOH solution.

119. ALG. ASAP

The orbit of comet Hale-Bopp is an ellipse as shown below. The units are astronomical units (abbreviated AU). 1 AU ≈ 92,960,000 mi. (a) Find an equation in standard form of the orbit of the comet. (Enter your answer in terms of AU.) (b) The distance from

120. Geometry

Which two dimensional shape can be rotated to create this solid subject?

121. Calculus (lim)

consider the statement lim x³-6x²+11x-6 / x-1 = 2 x->1 Using the definition of the limit, state what must be true for the above limit to hold, that is, for every ..., there is ..., so that.... Use a specific function and limit not just f and L.  Verify

122. chemistry

18.6 g KOH is neutralized by 58.4 ml of unknown acid find the molarity of the acid.

123. tech

live life to the fullest what are some symbols/pictures that represent "living life to the fullest?

124. chemistry

50.0cm^3 of 2.0 mol dm^-3 aluminium sulphate,Al2(SO4)3 solution Calculate the number of moles of ions.

125. math

The length of the tropical year us 365.24220 days, as compared to the length of 365.2425 days used by the Gregorian calendar. How many years will it take for this difference to amount to 8 days? Round to the nearest year.

126. statistics

A quality supervisor for a factory that makes cell phone cases examines a sample of 46 cases. She finds that 8 cases are the wrong size. Which is the best prediction of the number of cases that will be the wrong size in a shipment of 3,000? A.)410 B.)475

127. english

As a nightangle writ a diary entry highlighting her fears and analyzing her reasons for failures

128. Math

The table shows the number of people switching to a new telecommunications company over a 7-day period in August. Day=number of people 1=10 2=17 3=37 4=79 5=106 6=231 7=500 Using this estimate how many people will switch on august 31st. * it's an

129. math

The length of the tropical year us 365.24220 days, as compared to the length of 365.2425 days used by the Gregorian calendar. How many years will it take for this difference to amount to 8 days? Round to the nearest year.

130. Chemistry

What determines whether one metal will replace another metal from a compound in a single-replacement reaction?

131. Algebra

Melinda earns \$152 less per week then Barbra. The combined income of these two people is \$400 per week. How much per week does each person earn. I need some help on this problem If im correct I multiply 2 times \$152 then divide by 400?

132. health care

Is an example of the social Constructionism with an elderly person, a caregiver Thank you

133. Math

Circle the angle(s) that could never be the smallest angle of a triangle. 8 degrees 47 degrees 88 degrees 91 degrees

134. calculus

Determine whether the given series converges or diverges, and find the sum if it converges. I don't understand, help!! Thnx! 1) 20+5+(5/4)+(5/16)+...

135. Math 12

In Lotto 649, find the probability that: a) You have all six correct numbers. b) You have three correct numbers.

136. Math

1. Historically,40% of the adopted dogs rescued spend an average of 8 days in a kennel costing \$10 a day. Puppies-100 Dogs-650

Use the Midpoint Rule with the given value of n to approximate the integral. Round the answer to four decimal places. integral from o to pi/2 (2cos^3(x))dx , n = 4 M4 = ?????? Thanks!!!

Two more students like math than science Half the number of students who like science like history. The number of student who like reading equals the number who like math and science combined. Two students like History. How many children (12) like each

139. math

Ricki Cohn Encyclopedia sales Commission rate: 11% Month’s sales: \$2,550 What is the monthly commission

140. Math

A primary researcher is paid 80,000, two associates each are paid 45,000 a year. Each associate is responsibility for supervising up to eight sites. PT-Research assistants(2) are each paid 6,000 and are only able to support three sites each. The center

141. ALG- timed

Find the equation of the circle that passes through the point P(1, 7) and whose center is the point C(4, 3). Then sketch its graph.

142. chemistry

Two solutions were prepared. The first was a 0.672 M solution of aluminum hydroxide and the second was a 0.405 M sulfuric acid solution. 1.) If a total of 500 mL of aluminum hydroxide solution was prepared, how many grams of the solute (AL(OH)3) would have

143. Math

How would I answer this question? 7 is subtracted from one-third of r.

144. chemistry

If 15.0 grams of Iron (III) oxide reacts with 25.0 grams of Strontium phosphate, how many grans of Iron (III) phosphate will be produced?

145. Trig

Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='-12/13; neither a nor b are in quadrant III.

146. Trig

Use the given information to evaluate sin (a-b). Exact answers. No decimals. Sin a = -7/25, cot b = 8/15; neither a nor b are in quadrant III.

147. Trig

Evaluate tan(a-b). No decimals. Only exact answer. Sin a = -7/25, cot b = -8/15 neither a nor b are in quadrant IV.

148. precalculus sem 1

for the polynomial shown below, find (1) f(x)=3x^4-x^2+4x-2

149. Science

What determines whether one metal will replace another metal from a compound in a single-replacement reaction?

150. finance

A bond that has a \$ 1,000 par value (face value) and a contract or coupon interest rate of 10.5%. The bonds have a current market value of\$ 1,124 and will mature in 10 years. The firm's marginal tax rate is 34%

151. Algebra

The length of a rectangular piece of steel in a bridge is 3 meters less then double the width. The perimeter of the piece of steel is 24 meters Find the length and width of the piece of steel. l=3-2w? is part of the formula?

152. geometry

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

153. Algebra 2 help!!!

Which system is represented by the matrix equation below? [-7 -2] [x]  [15 8] [y] = [-8]

154. MATH!!!!!!!

If theres 225 students in my grade and the requirement to get into the principal list is top 5%, how many students are in the principal list?

155. Math 12

One hundred tickets are sold for a raffle. Three prizes are awarded. What is the probability that Andy wins first prize, Brianna wins second, and Cam wins third? What is the probability that Andy, Brianna, and Cam are the three winners (not necessarily in

156. Math

Circle the angle(s) that could never be the smallest angle of a triangle. 8 degrees 47 degrees 88 degrees 91 degrees

157. Math 12

Five cards are dealt from a shuffled deck of 52. Find the probability that: a) The hand has 3 spades and 2 hearts. b) The hand has 2 aces, 2 kings, and one other card.

What's the difference among a simple sentence, complex, compound, and compound-complex. I always have a difficult time knowing which is which, except simple sentence of course, that one is easy

159. Math

Your uncle has 36 coins in nickels and quarters. The value of his nickels is 1/15 of the value of his quarters. Find the number of nickels. Please show progress in answer.

160. Algebra

The length of a rectangular Garden is 40 yards longer then double the width The perimeter of the garden is 470 yards. find length and width of the Garden. L=2W+40 2W+2(2W+40=80 Kinda stuck here.

161. MATH

One particle(atom) of gold weight 197 atomic mass units. One atomic mass unit is approximately 1.6601 x 10^-24 grams. How many particles of gold are there in 197 grams of gold? Use scientific notation where and when appropriate.

162. statistics

A student claims the average amount of time spent studying for an exam is less than or equal to 120 minutes. A random sample of 101 students is drawn from a normal distribution. The sample mean is 140 with a sample standard deviation of 20. Test the claim

163. Statistics

The Jefferson valley bank claims that the variation of their wait time is less when using a single line that feeds three tellers as opposed to having threes peerage lines. Test the claim that the standard deviation for wait time is less than 1.9 minutes

164. Math

What amount should be accepted as equivalent, 60 days before an obligation of \$1480 is due, if money can earn 6 3/4%?

165. calculus

Compute the limit of the partial sums to determine whether the series converges or diverges. 1)6 + 4 - 4 + 4 - 4 + 4 - 4 +...

166. science

gravitational force decreases with distance. what does this mean for a space traveler who leaves earth in a spaceship?

167. Physics

A cannonball is dropped overboard from a boat. The cannonball sinks toward the bottom of the sea. The mass of the seawater displaced by the cannonball is exactly 2/3 the mass of the cannonball. Find the velocity of the cannonball after 10 seconds after

168. math

Jen and jacob want to put a cement deck around their pool. if the cement cost \$4.75 per square foot, how much is the cost of the deck? round to the nearest hundreth.

169. math

Vanessa typically works 8 hours per day in a normal 5 day work week. Last week however vanessa had to take 90 minutss off on tuesday 45 minutes off on Thursday and she left rwo and a half hours early on friday how many hours did vanessa work last week

170. Math Problem

An organization rents a 500 square foot office at a cost of \$10 per square foot per year. How much must they pay

171. math

A company feeds 15000 people per day for one month at a cost of 3.95 but the next month they will increase the number of people by 30%. what is the total?

172. Word Problem

Salaries are: 48,000, 30,000, 24,000 per year. the company spends an additional 25% on health insurance for each person annually. How to I calculate the totals?

173. math

The fabric mart had costs of goods sold at \$844,000 for the year

174. algebra

Writ the equation in Logarithm form 25=(1/5)^2 a=b^c

175. Algebra

four added to one seventh of a number answer: 4+1/7x is this correct? or is it 1/7+4x?

176. Phys

Centripetal force: a race car driver wants to stay as straight as possible around the curves in the race. What should happen to his radius, force and velocity?

177. math

6(a-b) - 5(2a + 4b)

178. economics

What are the costs and consequences of providibg the subsidies and welfare?

179. Physics

Need help with a question! I worked out A (assuming its right) which leads to B. A) C=1.03x10^-4 uF, A=2.5mm^2, d=0.75um B) If the voltage across the membrane is delta V= 75mV, what is the charge +_Q on each surface A? thanks!

180. Math homework help

Use half angle identities to find exact value. Given tan theta = -sqrt 2 / 2 and theta lies in quadrant IV, find cos theta / 2.

181. Maths

how do you find the hypotenuse of a triangle

182. precal

A quadratic function has x-intercepts 2 and 6 and its vertex is (4, 8). What is the corresponding quadratic expression?

183. economics

What are the costs abd consequences of providing the sudsidies and welfare

184. Java

What would happen if I did not give a access specifier. Would the class method or attribute be accessible to all other classes?

185. math

if you have a jar filled with candy and every time you take one candy out you put the wrapper back into the jar. the wrapper takes 10% of the volume of a piece of candy. How many times will you have to fill the jar before half the jar is filled with candy

186. Physics

A girl throws a ball at a fence 10m away. The ball is 2m from the ground when it leaves her hand with an initial velocity of v=8 i+8 j m/s. When the ball hits the fence its horizontal velocity component is reversed (the vertical velocity component is

187. Alg.

Find the coordinates of the vertex and the equation of the axis of symmetry of the parabola given by the equation. y = − 1/7 x^2 + x − 3 and graph it

188. math

A temperature measurement from earths stratosphere is taken as -70 degree Fahrenheit. The temperature on the earths surface below is found to be 41 degrees Fahrenheit. Find the difference between the surface temperature reading and the stratosphere

189. math

What is necessary to accelerate a 25 kg mass at m/sec?

190. Math

Problem: The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies will wee need to

191. Help w/ Math PLS

If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.

192. Game Development

In relation to game AI what is a flocking behaviour? Give an example of flocking behaviour in a game.

193. Trig

Simplify each expression using fundamental identities. 1. Sin theta cot theta 2. 1-sin^2 theta / cos theta

194. math

Problem Solving and Explain. The 52 students from Babcock school were divided into 9 squads for the Coast Trip . There are 25 parents including teachers attending. If we need to purchase 2 cookies for each person to eat for 2 nights, how many dozen cookies

195. algebra

solve each exponential equation. Given the value for x 8^x=1/64 3^x=6 Can someone show me how to preform these. I would greatly appreciate it Thank You

196. Maths

Y=3x-1 X^2+y^2=12 Then solving with quadratic equation

197. HELP PLZ

What determines whether one metal will replace another metal from a compound in a single-replacement reaction?

198. calculus

Find the interval of convergence of the series. ∑(sinx/10)^n

199. Calculus Riemann sum definition etc

I am totally stumped... PLEASE if anyone can help we are going nuts...lol Use the Rieman sum definition of the definite integral to show that 3¡ò(there is a little "b" at top and little "a" at bottom 3¡ò x©÷dx = b©ø-a©ø Here,for simplicity we

200. Maths

x+y=5 y=2x^2-x-13

201. social studies

After capturing Washington, the British attacked what city, which they failed to capture? New York, Statton Island

202. Algebra 1

Solve by completing the square. 1. -x^2 - 5x = -5

203. Calculus, Riemann

IF ANYONE CAN PLEAAAASEEEE HELP ME Use the Riemann sum definition of the definite integral to show that b 3 ¡ò x©÷dx - b©ø -a©ø a Here, for simplicity, we assume b > a > 0. Be sure to clearly specify your mesh/grid xi, , and your choice of sample

204. Calculus

HELP....last question SOS HELP Consider the statement lim X-->1 X©ø-6X©÷+11X-6 / x-1 = 2 USING THE DEFINITIONS OF THE LIMIT STATE WHAT MUST BE TRUE FOR THE ABOVE LIMIT TO HOLD, THAT IS, FOR EVERY ¡¦, THERE IS ..., SO THAT¡¦. Use a specific function

205. Algebra

The length of a rectangular Garden is 40 yards longer then double the width The perimeter of the garden is 470 yards. find length and width of the Garden. L=2W+40 2W+2(2W+40=80 Am I starting off right?

206. physics

3813.75 Joules of work is being done on a 150 lb object while it is moved 75 ft across a horizontal plane, what is the final velocity if the coefficient of kinetic friction is 0.25 and the initial velocity is 1 ft / s?

207. Physics

3813.75 Joules of work is being done on a 150 lb object while it is moved 75 ft across a horizontal plane, what is the final velocity if the coefficient of kinetic friction is 0.25 and the initial velocity is 1 ft / s?

208. chemistry

20.70 ml of .42 M HClO4 is required to neutralize .966g of an unknown base. Find the molar mass of the base .

209. Trig

Use the given information to evaluate sin (a+b). Exact answers only. No decimals. Tan a = 4/3, cos b ='-12/13; neither a nor b are in quadrant III.

210. Trig

Use the given information to evaluate sin (a-b). Exact answers. No decimals. Sin a = -7/25, cot b = 8/15; neither a nor b are in quadrant III.