# Questions Asked onNovember 15, 2016

1. ## math

A 19 ​-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground 13 feet from the base of the building. How high up the wall does the ladder​ reach?

2. ## Algebra

which equation represents the relationship shown in the table below? x | 0 | 1 | 2 | 3 | __________________ y | -3 | -1 | 1 | 3 | a.) y = -x - 3 b.) y = x - 3 c.) y = 2x - 3 d.) y = -2x + 3

3. ## math

A group of people were asked if they had run a red light in the last year. 433 responded "yes", and 424 responded "no". Find the probability that if a person is chosen at random, they have run a red light in the last year.

4. ## MATH 123

A wooden artifact from an ancient tomb contains 55% of the carbon-14 that is present in living trees. How long ago was the artifact made? (The half-life of carbon-14 is 5730 years. Round your answer to the nearest whole number.)

5. ## Social Studies

1. What are the three types of productive resources? Select all that apply. (3 points) the raw materials provided by the planet the planning and work that go into production the markets that sell the results of production the social systems that ensure

6. ## math

The cost c (in dollars) for the fuel and maintenance of a go-cart is given by c=10x+1200 c=10x+1200 , where x is the number of rides. It costs \$40 per ride. How many rides does it take to break even?

7. ## Chemistry

Oxalic acid, found in the leaves of rhubarb and other plants, is a diprotic acid. H2C2O4 + H2O ↔ H3O+ + HC2O4- Ka1= ? HC2O4- + H2O ↔ H3O+ + C2O42- Ka2 = ? An aqueous solution that is 1.05 M H2C2O4 has pH = 0.67. The free oxalate ion concentration in

8. ## Math

Clark's Country Pet Resort is fencing a new play area for dogs. The manager has purchased 186 yd of fence to enclose a rectangular pen. The area of the pen must be 2156 yds^2. What are the dimensions of the​ pen? Length is how many yards? Width is how

9. ## English

1.Identify the underline phrase in the sentences: "Accordong to the letter", the wedding is June 25th. propositional**** participial gerund infinitive 2.Mikayla's homeroom teacher,"Mr.Jones", is very proud of her. participial gerund appositive****

10. ## Stats

You draw two marbles at random from a jar that has 20 red marbles and 30 black marbles without replacement. What is the probability that both marbles are red?

11. ## chemistry

Identify the element that has a ground state electronic configuration of [Ar]4s23d104p 4

12. ## maths

Two vectors P and Q of magnitudes 5 and 3 units respectively are inclined at an angle of 30 to each other.calculate the component of the resultant in the direction of Q.

13. ## Algebra2

is y=1/4x^0.5 a power function. Explain why or why not.

5. The Statue of Liberty has stood FOR MORE THAN 100 YEARS in New York Harbor. adverb phrase** adjective appositive phrase adverb 6. Frédéric Bartholdi, THE SCULPOTOR, came up with the concept of a “mighty woman with a torch” as he sailed into the

Question: If A= 29 degrees and a= 4.6, find c. There is a diagram shown in the textbook. b is adjacent, c is the hypotenuse, and a is opposite. I know I'm suppose to use SOH CAH TOA, and i tried using tan, but Im not getting the correct answer. i looked in

16. ## maths

write 249cm to the nearest metre

17. ## math

the sides of a square are increased by a scale factor of 6. the perimeter of the smaller square is 10 ft . what is the perimeter of the larger square. a 2.5 ft b 10 ft c 60 ft d 120 ft

18. ## math

Which ratio forms a proportion with 18/30? (a)20/35 (b)50/90 (c)36/48 (d)60/100 I think the answer is C, am I correct?

19. ## Algebra2

Which correctly describes the roots of the following cubic equation? x^3-5x^2+3x+9=0

20. ## Chemistry

Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to

21. ## Chemistry

Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to

22. ## Chemistry

Hydrogen gas is used for many purposes, including the hydrogenation of vegetable oils to make margarine. The most common industrial process for producing hydrogen is "steam reforming," in which methane gas, CH4, from natural gas reacts with water vapor to

23. ## Math

Next three terms in sequence 1,-3,9,-27,81,....

24. ## Algebra2

Determine whether the function represents exponential growth or decay. Then find the y-intercept. y=4(5/6)^x

25. ## math

What is the probability of being dealt 3 tens and 2 kings from a deck of cards?

26. ## math

A, b, c can complete a work separately in 24, 36, and 48 days respectively. They started working together but C left after 4 days of start and A left 3 days before the completion of the work. In how many days will the work be completed ?

27. ## history

1. Which statement best explains the significance of the signing of the Mayflower Compact? * 5 points A)The colonists swore to survive together or die in North America. B)The colonists agreed to create their own government and to obey its rules. C)The

28. ## math

Alice is working 2 jobs to save up money for a trip. She works at the ice cream shop for \$9 an hour and babysitting for \$12 an hour. She needs to earn at least \$200 per week and can only work 20 hours per week. Write a system of inequalities to model the

29. ## Music

2.What would be the construction of a major scale just starting on note G? A- G, A, B(flat), C, D, E, F#, G B- G, A, B, C, D, E, F#, G C- G, A, B(flat), C, D, E, F, G D- G, a, B, C, D, E, F, G

30. ## chemistry

what are the isomers of chlorodibromobenzene

31. ## Stats

One of the questions on a survey of 1,000 adults asked if today's children will be better off than their parents (Rasmussen Reports website October 26, 2012). Representative data are shown in the file ChildOutlook. A response of Yes indicates that the

32. ## math

Which of the following statements is true about the level of significance alpha?

33. ## Arithmetic

a folding chair regularly sells for \$29.50. how much money is saved if the chair is bought at a 20% discount?

34. ## Psychology

1. Describe the structure of a neuron and explain the function of each of its major parts. I dont want anyone to answer FOR me, but I really need help on where to start. If you could help, I would greatly appreciate it.

35. ## Chemistry

Which reaction below represents the second ionization of Lr?

36. ## Calc

Find the critical numbers of the functions. f(0) = 2sec0 +tan0 on the interval [0,2pi]

37. ## PHYSICS

A 6.53-kg block initially at rest is pulled to the right along a horizontal surface by a constant force of 125 N applied at an angle θ above the horizontal. The coefficient of kinetic friction between the block and the horizontal surface is 0.150. At what

38. ## Mathe: NEEDHELP!

Drinking 6 fluid ounces of milk provides 202.5 milligrams of calcium. How many fluid ounces of milk are required to provide 52.5 milligrams of calcium? Round to the nearest tenth. PLZ HELP!

39. ## Chemistry

Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The equation shows the net reaction for one process that forms potassium permanganate 2MnO2+2KOH+O2=2KMnO4+H2 What is the maximum

40. ## Chemistry

Calcium Fluoride, CaF2, adopts the fluorite lattice, which is described as a face-centered cubic array of Ca2+ ions with F-1 ions with Ca2+ ions in half of the cubic holes. The Radii of Ca2+ and F-1 are 126 and 117 pm, respectively. Calculate the density

41. ## Physics

You exert a force of 26 N on the head of a thumbtack. the head of the thumbtack has a radius of 7 mm.? What is the pressure on your thumb? -------- atm

42. ## Trigonometry

A sine function has an amplitude of 4/7, period of 2pi, horizontal shift of -3pi, and vertical shift of 1. What is the y-value of the positive function at x= pi/2?

43. ## Maths

In A Right Angled Triangle,one Of The Acute Angles Is 20degree Greater Than The Other. Find The Angles Of The Triangle.

44. ## geometry

Each of the twelve edges of a cube of edge 'a' is tangent to a sphere. Find the volume of that portion of the cube which lies outside the sphere.

45. ## solid geometry

A cone circumscribed a sphere and has its slant height equal to the diameter of its base. Show that the volume of the cone is 9/4 the volume of the sphere.

46. ## History

Why was the presidency of Gorge Washington considered to be so significant? A) his actions would define the role of the President** B) his actions would set precedents for all future presidents C) his actions would determine the need for a president D) his

47. ## Government

How many terms can a president serve according to the Constitution? a. one term b. two terms*** c. three terms d. unlimited terms

48. ## Science

Word that means "flat like a plate "(flat land that Is higher than surrounding land"

49. ## Math

Holly spent one third of her birthday money on new clothes she spent 3/10 of the clothes money on socks what fraction of her birthday money did she spend on socks?

50. ## math

A school district has 2 teaching positions to fill and there are 8 applicants to choose from. How many different possibilities are there?

51. ## Science

Help pzzzzzz Sound in an empty room can be very loud,with many echoes.Describe three ways to make the room quieter?

52. ## Chemistry

This compound has a molecular mass of 1268.06g/mol, what is the molecular formula for this compound?

53. ## geometry

Find the measure of each exterior angle of a regular polygon whose central angle measures 120 degrees.

54. ## chemistry

Enthalpy of combustion of c(graphite)is _393.3 KJ mol -1then for producing 39.3 KJ of heat the amount of carbon required is

55. ## Maths

A, B, C are in a contest. 400 officers are voting to support them and each of them can only cast one vote. If the ballot shows a result ratio of 2:3 for A and B candidates, 9:5 for B and C candidates, how many tickets had each of A, B and C get? A

56. ## Science Ms. sue help

what is the function of a cell wall A) to Protect and support the cell B) to preform different functions in each cell C) to prevent water from passing through the cell D) to prevent oxygen from entering the cell. Help!!!!

57. ## Maths

What are the two consecutive numbers that have digit sums of 36 and 1

58. ## math

suppose that \$3500 is borrowed for three years at an interest rate of 4% per year. compounded continuously. find the amount owed, assuming no payments are made till the end. Round to the nearest cent.

59. ## chemistry

nitrogen and hydrogen react to form ammonia. N2+3H2=2NH3. 12 dm3 of hydrogen reacted with excess nitrogen to form 2 dm3 of ammonia. what is the percentage yield of ammonia at room temperature and pressure

60. ## algebra

Express in mathematics form the sum of four times a number and fourteen times its resiprcol is 15

61. ## physics

Acceleration of a Mass in a Pulley System Block 1 of mass m1 slides on a frictionless plane inclined at angle θ with respect to the horizontal. One end of a massless inextensible string is attached to block 1. The string is wound around a frictionless

62. ## Chemistry

Elemental analysis of a compound, once used as a pesticide, was found to be 74.2% carbon, 8.64% hydrogen, and 17.2% nitrogen. This compound has a molecular mass of 162.23g/mol, what is the molecular formula for this compound?

63. ## math

Which proportion has cross products of 5 x 24 and 8 x 15? (a)5/8 = 15/24 (b)5/25 = 8/15 (c)8/24 = 15/5 (d)15/8 = 5/24 I think the answer is A. Am I correct?

64. ## English

1.Read the following sentences from "The Destructors." The new recruit had been with the gang since the beginning of the summer holidays, and there were possibilities about his brooding silence that all recognized. He never wasted a word even to tell his

65. ## physics

A car brakes at constant acceleration from a velocity 226m/s to 12.5m/s over a distance of 105m.find; a)How much time elapses during this time interval. b)what is the acceleration. c)if the car continued to be braked at same constant acceleration how much

66. ## Physics

A car is proceeding at a speed of 14.0 m/s when it collides with a stationary car in front. During the collision, the fist car moves a distance of 0.350 m as it comes to a stop. The driver is wearing her seat belt, so she remains in her seat during the

67. ## Algebra

133 is the product of 7 and gails savings. Use the variable g to represent gails savings

68. ## Math Statistics

N= 80 p = 0.7 x = 62? A) Exact: 0.0335; Approximate: 0.0334 B) Exact: 0.0343; Approximate 0.0334 C) Exact: 0.0343; Approximate: 0.0350 D) Exact: 0.0343; Approximate: 0.0342 Which one is the correct answer and can you show work please?

69. ## Math

Jason has 75 feet wallpaper border.He wants to put up a wallpaper border around his rectangular bedroom that measures 12 feet by 14 feet. He multiplies 12×14=168 to get an exact answer of how much border he needs.He concludes that he does not have enough

70. ## math

A spherical helium balloon has a diameter of 30 cm. How much helium is needed to fill the balloon, in cubic centimeters? Round your answer to the nearest centimeter

71. ## English

Which of the following is not an object of satire in "a contribution to the statistics'? A. The self importance of social studies B. The corruption of the powerful C. Thee pride of mankind D. The delusions of common people

72. ## Chemistry

Use the calculation of specific heat for your metal as an example and determine the effect on specific heat if the sample temperature is changed. Does this small loss in heat significantly (>5%) affect your value for the specific heat of the metal? How

73. ## physics

What is the force constant of a spring which is stretched 2mm by a force of 4N

74. ## university physics

A 5.20 g pellet is shot horizontally from a BB gun at a speed of 29.1 m/s into a 20.8 g wooden block. The wooden block is attached to a spring and lies on a frictionless table. If the collision is inelastic and the spring constant k = 22.0 N/m, what is the

75. ## Technology

A boy who weighs 30 kilograms sits on one end of a seesaw. On the other end there is a girl who weighs 20 kilograms. The girl is 1.5 metres from the fulcrum. How far from the fulcrum must be the boy sit in order to balance the seesaw? How far away must the

76. ## American Government

1) The Executive Office of the president is commonly called "the president's right arm" because it hosts agencies composed of which of the following? A) congressional leaders from the majority party B) influential members of various political parties C)

77. ## LA

In "All Together Now," why does Barbara Jordan most likely mention the conflict in Bosnia? A.It shows that people of different ethnic backgrounds can live in peace. B.It shows that improvements in race relations are still necessary despite past progress.

78. ## Geometry

Find the orthocenter of triangle ABC. A (3,5) B (9,5) C (5,3) I think it is (9, 5).

79. ## Math

Louisa has many marbles in a bag. When she counted them by twos, threes, fours, fives, sizes, sevens, eights, nines and tens there was always one left over. What was the smallest number of marbles Louisa could have had in her bag?

80. ## History

Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the

81. ## Table of Values

Make a table of values for y=3. Then, map it on a graph.

82. ## Statistics

A random sample of size n is to be drawn from a population with a mean = 500 and sd = 100. What sample size would be necessary to ensure a standard error of 25? Sample sizes are whole numbers.

Girl has 64 oz juice for a party. She has 300 more ounces apple juice than grape juice. How many ounces of each type of juice does girl have? The answe is 170oz grape juice 470 oz Apple juice How do you get that answer? Thank you

84. ## Algebra

It says "there are x students trying out for a solo in a chorus concert. Only 6 will be chosen. How many students will not be chosen?"

85. ## math

Sally at age 18 invests \$3,000 in the bank account. The account rate goes up 5% annually. How much will be in the account, by the time Sally is 25?

86. ## Math Statistics

A random sample of size n is to be drawn from a population with a mean = 500 and sd = 100. What sample size would be necessary to ensure a standard error of 25? Sample sizes are whole numbers.

87. ## Math

To make a jacket it takes 1 7/8 yards of material and the material cost \$9.00 a yard. What does it cost to make the jacket?

88. ## Government

Which scenario best illustrates how the power to make treaties in the united states constitution provides for checks and balances among the three branches of government ? A. the president must sign an executive agreement without the senate, but must have

89. ## Algebra

Solve. x^2-xy+3y^2=15, x-y=2 Thank you

90. ## Physics

A mass m at the end of a spring oscillates with a frequency of 0.83 Hz . When an additional 770 g mass is added to m, the frequency is 0.65 Hz . Part A What is the value of m? Express your answer to two significant figures and include the appropriate

91. ## English

what is intermittent

92. ## Chemistry

Are the units for frequency Nu or Hz????????!

93. ## Science

Which of the following may occur during metamorphism? A. The rock becomes less compact. B. Certain minerals may recrystallize. C. Crystals may grow smaller. D. The rock becomes less dense.

94. ## English

I need to compose an original short story about a quest or dream that a young person sets out to fulfill and the narrator has to be older and wiser than he or she was at the time of the quest. Any ideas?

95. ## Algebra

-9v - 5 = -95 This has me stumped. Ms sue help plz?

asked by Ms. ( ͡° ͜ʖ ͡°)
96. ## Chemistry

How many milliliters of water at 25.0°C with a density of 0.997 g/mL must be mixed with 165 mL of coffee at 91.0°C so that the resulting combination will have a temperature of 62.1°C? Assume that coffee and water have the same density and the same

97. ## French

Are these right? This is supposed to be points of info on French culture in Canada. •Until the 1960s: Family lives of French Canadians heavily influenced by the Roman Catholic Church. •Large families •TODAY: •Average couple has only two children

98. ## Physics

a transverse wave on a string has a period of 0.1 s and an amplitude of 1 cm. What is the maximum transverse acceleration at any point along the string?

99. ## Social studies

The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? This is only one question and I am from connexus 8th grade if someone could give me the answers to the whole

100. ## Algebra

Suppose that you work part time as a sales representative at a car dealership. You earn a base salary of \$125 per week plus a 18% commission on all sales that you make. Your best friend has exactly the same job at another car dealership but earning a base

101. ## Biology

What are 2 advantages for binary fission in bacteria?

102. ## Chemistry

What is Enthalpy?

103. ## Chemistry

Give a simple test that would allow you to distinguis between the following pairs of anions. Tell what you would do and what you should observe for each anion. A. CO3^2- and SO4^2- B. Cl- and SO4- C. CO3^2- and Cl- Now, for each cation A. B^3+ and Ca2+ B.

104. ## Math

When 25 is added to a number and the result is halved, the answer is 3 times the original number. If let the number is X, make an equation to find X.

105. ## Social studies connexus 8th grade

The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? I could use some help here can anyone help me give me an answer or a link of some sort? Thanks

106. ## Math

What is the smallest 5 digit even number that can be formed with the digit 091 and 6

107. ## civics

Research how your local government works. Briefly explain the process to pass a law (usually called an ordinance or code) in your city or county. To introduce the idea in my city or county, first I would

108. ## maths need help word problem

A number is made up of two digits whose sum is 9. If this number is now divided into the number made up of the same digits but in reverse order the result is six-fifths. Find the number? Step plz

109. ## Math check

2. 184x210 round 200x200 = 40,000 3. 77x412 -) 80x400=32,000

110. ## science

an experiment discovered that a particular material was a poor conductor of electricityA. conductor B. insulator C. switch D. resistor

111. ## geometry

Find the measure of each interior angle of a regular polygon whose central angle measures 60 degrees.

112. ## Math help

Laura family is going on a vacation they will drive 4,180 miles over the next two weeks about how many miles will they drive an average each week ? Plz help

asked by E aka essence Forbes
113. ## Math

Simple interest to the nearest cent for\$4,010 at 5.2 Percent for 4 years

114. ## math

Patrick purchased 12 books. He needed 4 books for each of his projects at school. How many projects did he have?

115. ## College Algebra

If the graft y =x^3 is shifted 4 units to the left and 8 units up and is stretched by a factor of 0.75 find the new function

117. ## pre calc

Sketch the graph of the function f(x) = (x+4)3(x+1)(x−2)2(x−5)/ (x+3)2(x+1)(x−3)

118. ## Physics

In what two positions will a converging lens form images of a luminous object on a screen located 40.0cm from the object?

119. ## English 12 ..

Is anybody Currently attending to ONLINE connections Academy and taking ENGLISH 12 ? .

120. ## Maths

There are 30 pieces of 4 different colours but same size balls in a bag. Asmo is asked to take out balls from the bag with closed eyes. To guarantee the balls taken are not less than 5 same colour balls, at least how many balls should be taken out from the

121. ## Chemisty

You started the conventional synthesis with 0.015 mole of salicylic acid. If the reaction worked perfectly, how many moles of aspirin would you make?

122. ## Math

A MAN is now 3 times as old as his son. In 10 years time, the sum of their ages will be 76. How old the son.

123. ## Math

Indira predicts that the actual difference of 19 - 7.82 will be greater than the estimate of 19 - 8 = 11. Indira correct ? Explain how Indira might have arrived at that prediction without subtracting the actual numbers.

124. ## Calculus

A rectangular swimming pool is 8 m wide and 20 m long. Its bottom is a sloping plane, the depth increasing from 1 m at the shallow end to 3 m at the deep end. Water is draining out of the pool at a rate of 1 m3/min. How fast is the surface of the water

125. ## math

2 cup of flour make 8 biscuits how many cup of flour do he need to make 30 biscuits

126. ## math

The length of a rectangular garden is two less than thrice its width. How long is the garden if the area is 65m²? Please help

127. ## wisdom'

jack ate a mango

128. ## physics

A basketball explodes into three separate pieces. Two pieces of equal mass shoot off at 20.3 m/s, one travelling to the south and one to the west, perpendicular to each other. The third piece has a mass 4 times the size of one of the other pieces. What is

129. ## Math

Anjalina earns 5% commission on all electronics she sells at electric world .on Monday she sold a television for \$1130 and DVD that cost \$325 .what was the total she earned in commission

130. ## Livingston Elementary school math-3rd Grade

Patrick purchased 12 books. He needed 4 books for each of his projects at school. How many projects did he have?

131. ## spanish

The years from 1810 to 1825 were difficult for who because of the territorial losses?

132. ## Math

If the sides of a disheveled triangle is 9cm, 9cm and 4cm, find the height on the shortest side.

133. ## algebra

Give an example of a function, f(x), with a domain of (0,5] and a range of [0,∞). I've came up with the following. Is there a way to change it to limit domain to the (0,5]? |(1/x) + ((1/x) - 5))|

134. ## maths

every 20m along a street there are lamppost from beginning to end. a) the street is 800m long. How many lamppost are there on the street? b) how many 20m spaces are there along the street? c) Frankie lives between the lampost 21 and 22. How far from the

135. ## Algebra

Rowena is now half as her mother. 8 years ago, she was 1/3 as old. Find their ages. So is the half 1/2x or x/2?

136. ## Math

1-(-2)^2*(-1)^3=

137. ## physics

A body is in equilibrum when three forces act on it.Two of the forces are F1 of magnitude 8Newtons acting due east and F2 which is 5Newtons acting 060. find the magnitude and direction of the third force.

138. ## Algebra

Working together, a man and woman could complete a job in 6 days. A man workingcqlone could do it in 5 days less than a woman could. In how much time would each other do the job alone?

139. ## Math

equivalent expressions that can be used to find the final price of an item costing g dollars that is on sale for 15% off and charged 7% sales tax.?

140. ## Math

Find formula of 11, 31, 91, 271, ...

141. ## Building services

Principles of heat: How many kilograms of water can be evaporated at 100 degrees Celsius by the combustion of 470 litres of fuel oil whose heat of combustion is 37 MJ/Litre

142. ## Microeconomics

LTC=2q-2q^2+q^3 Demand p=100-q Determine the long run equilibrium Price Representative firm's output(q) Industry output q and number of firm's in the industry

143. ## math

Which ratios form a proportion? (a)4/9, 12/25 (b)3/7, 18/42 (c)5/8, 15/25 (d)5/11,20/45 I think the answer is B. am I correct?

144. ## World history

How were Native Americans affected by the strategies used by the federal government during western expansion? I need at least three pls. Could one be killing the indians resource(buffalo)

145. ## Math grade 6, Fractions

Daniel gave 4/5 of his stickers to perry.Perry's collection of stickers increased to 64.If Perry had 28 stickers at first,how many stickers had Daniel at first?

146. ## Math grade 6, Fractions

Jenny and Phillip had \$360 altogether.After Philip had given Jenny 2/5 of his money, Jenny had the same amount of money as Philip.How much money did Philip have at first?

Paraphrasing

148. ## World geography

Where can you find EL captain and what is it known for

149. ## Math

Kate uses a copy machine to enlarge her rectangular design that is 6 inches wide and 8 inches long. The new width is 10 inches long. What is the new length. I got some weird number like 13.333. I multiplied 8 times 10 and divided 80 by 6.

150. ## Geometry

Find the orthocenter of triangle ABC. A (3,5) B (9,5) C (5,3) I think it is (9, 5).

151. ## Calculus

Find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. f(x) = 4√x [4, 9]

152. ## maths

Suppose that the demand function for a good is qD(p) = 8000/((p^2) + 1) where q is the quantity and p is the price in dollars. If the price is decreased from 9 to 8.5, what is the approximate increase in the quantity sold?

153. ## Math

Two chemicals,A and B are combined in the ratio 5:11 by volume to form another solution X. A second solution Y is formed by combining chemicals, A,B and C in the ratio 2:3:15 by volume. Find the volume of chemical A in 400 litres of solution X and

154. ## Math

Lulu buys a dess for \$67 and a hat \$35 and shoes for \$49 how much did she spend?

155. ## Chemistry

When 20 grams of calcium carbonate decomposes, how many grams of calcium oxide are produced?

156. ## Chemistry

Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The equation shows the net reaction for one process that forms potassium permanganate 2MnO2+2KOH+O2=2KMnO4+H2 Explain why the oxygen

157. ## math

it takes 3/4 of an hour for an automated sprinkler to cover 2/7 of a lawn. after an hour has passed, what fraction of the lawn has been covered?

158. ## math

At a zoo the ratio of elephant to hippos is 1:2so for every elephant there are 2 hippos if there were3 elephant at the zoo how many hippos would there be

Give an example of a function, f(x), with a domain of (0,5] and a range of [0,∞). I've came up with the following. Is this right or do I need to change something? |(1/x) + ((1/x) - 5))|

160. ## Physics

Robert constructs the apparatus shown and slides a block down a slope that is without friction until the block reaches the section, L, of length 1.85 m, which begins at height h2 = 2.0 m on a ramp of angle 30.0°. In that section, the coefficient of

161. ## Chemistry

A precipitation reaction takes place when a water solution of potassium phosphate, K3PO4, is added to a water solution of cobalt (II) chloride, CoCl2 Write a balanced equation for this reaction

162. ## math

By using 12 match stic How many rectangle can you make which is the longest one write the measurement

163. ## maths

f(x)=x^2+3x+1,g(x)=2x-3, find fog and gog

164. ## Chemistry

When coal is burned, the sulfur it contains is converted into sulfur dioxide. This is SO2 is a serious pollutant, so it needs to be removed before it escapes from the stack of a coal fired plant. One way to remove the SO2 is to add limestone, which

165. ## science

A banana turning brown when exposed to the air is an example of

166. ## Chemistry

What volume of dry NO at 25°C and 1.00 atm can be prepared by reacting 6.35 g of Cu with 25.0 mL of 6.0 M nitric acid, HNO3? 3 Cu(s) + 8 HNO3(aq) --> 3 Cu(NO3)2(aq) + 2 NO(g)+ 4 H2O(l)

167. ## Chemistry

What is the mass in grams of a 15.8 L sample of ozone (O3) at 1.67 atm and 30.0 °C?

168. ## math

#1)Which ratio forms a proportion? Use cross products to test each pair. (A)15/40, 35/90 (B)18/22, 45/55 (C)12/55, 33/121*** (D)17/31, 32/45 #2)Which ratio forms a proportion with 20/30? Use equivalent ratios to test each pair. (A)16/24 (B)10/20***

169. ## math

debra needs to drive 14 miles to work.So far she has driven 6.7 miles.How many more miles must she drive

170. ## Functions

Please I need help with this algebra problem With the 3 equations f1(x)=0 f2(x)=1/8(x+16)^2-98 f3(x)=2x+24 Determine an equation for this function with the 3 pieces above.(Refer to creating the polynomial functions)

171. ## SCIENCE

The diagram shows the variation of air pressure from an alarm siren at particular instant. The speed of sound in the air is 340m/s. what is the period of alarm siren.

172. ## Chemistry

What is the molarity of the final solution if 2.00mL of the 5.00 M stock solution is diluted to 10.00mL to make solution A? Solution A then undergoes a second dilution by taking 3.00mL solution A and diluting it to 25mL.

173. ## World history

How did the Hun invasion weaken the Roman empire

174. ## geography

Is there a connection between The Balfour Declaration and the frustrations of Hezbollah? I have some vague ideas, but I need more info and more clear and in depth info! Thanks!

175. ## Math

Explain how to do 2/7 + 12/35 ?

176. ## math

Hi, I'm trying to learn factoring but a couple of things don't make sense to me and I'm hoping you could explain them. If I have P(x) = 2(x-3)(x-4), how do I automatically know that the zeros are x = 3 and x =4? If inside the parentheses it was (x+3)(x+4),

177. ## History

Why did Adams increase the size of the American navy? A)He wanted to prepare for all-out war on Britain. B He hoped it would deter more attacks by French ships.*** C)He needed to use tax money to fund an increase in military spending. D)Congress passed a

178. ## Math

Mohit put 6 red balls and 7 black balls into a bag. What fraction of the balls are red balls?

179. ## MATH: I CANT FUGRE IT OUT!

Use the unit price to find the total price. 8 gallons at \$1.94 per gallon PLZ HELP!

180. ## Math

a furniture company makes similar chairs for adults and children. The height of the adult chair is 80cm while the height of the childrens chair is 50 cm. what is the ratio of their widths

181. ## Fluid Mechanic

3) Air at standard conditions enters the compressor shown in Fig. Q3 at a rate of 0.3m3/s. It leaves the tank through a 3 cm diameter pipe with a density of 1.8 kg/m3 and the uniform speed of 210 m/s. (a) Determine the rate (kg/s) at which the mass of air

182. ## Math

_ _ x _ _____ _ _ +_ _ ______ _ _ You can only use numbers 1-9 and each can be used once.

183. ## Chem

If you have an equation for a line, y = 0.15x + 0.010, where y is absorbance and x is concentration in molarity of Fe (2+), calculate the concentration of a test sample with an absorbance of 0.065. What is the absorbance value for the blank in this

184. ## English

1. I have been there already. 2. I have already been there. 3. I was already there. 4. Already I was there. ------------------------- Are they all grammatical? Which ones are commonly used? Do we have to use the present tense or the simple past tense?

185. ## Social studies

Help! Modern news from ancient lands. Summarized news story completely using who, what, when, where, and why. Analyze the connections between ancient history and current events in the news story. Don't understand this at all.

186. ## math

John and Bryan share Rs 1500.If John gets twice as much as Bryan,how much money does Bryan have?

187. ## Math

The field is in a right triangle shape.The hypotenuse of this field is 6 metres and the peerimeter of this field is 14 metres.What is the area of the lawn?

188. ## Language

In "All Together Now", Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then,explain whether you find Jordan's appeal

189. ## Literature

Which of the following best describes the shift in the speaker's tone toward Naett? a. from affectionate to proud b. from worshipful to gloating c. from emotional to detached d. from sentimental to concerned

190. ## algebra

Two workers can paint 800 meters of trim in 5 hours. How many meters of trim can be painted by 4 workers in 2 hours?

191. ## History

Hello, just got a sheet that has a couple problems regarding European Medieval history. One of them is to fill out a pyramid hierarchy of the following classes: serfs, nobles, clergy, merchants, monarchs, artisans, and knights I've been looking over the

192. ## Chemistry

What volume (in mL) of 1.0 M HCl is required to prepare 500 mL of pH 7.76 buffer using triethanolamine that is 0.020 M in both triethanolamine and triethanolammonium ion?

-1/6+(-3/7)

194. ## Statistics

A random sample of size n is to be drawn from a population with a mean = 1100 and SD = 300. What sample size would be necessary to ensure a standard error of 25? Sample sizes are whole numbers.

195. ## English

Posted by rfvv on Tuesday, October 11, 2016 at 5:39pm. 1. Seoul is the city. My family used to live in Seoul. 2. Seoul is the city where my family used to live. 3. Seoul where my family used to live is the city. ------------------------------------ #1 can

196. ## English

Which sentence structure sounds better? Days have gone by and Mary and Jane have not heard a sound from the neighbors cat. OR Mary and Jane have not heard a sound from the neighbors cat in days. I believe the second sentence sounds better.

197. ## HISTORY GOVERNMENT CCA

what characteritics do bureaucracies share? check all that apply Formal rules generalization clearly defined goals chain of command elected staff which of the following is part of the executive branch bureaucracy? the president's cabinet the congressional

198. ## English

Which of the following contains a noun clause? A. Louis did not know Jocie could not swim. B. Since last August we have not seen a drop of rain.

199. ## precalc

Sketch the graph of the function f(x) = (x+4)3(x+1)(x−2)2(x−5). /(x+3)2(x+1)(x−3)

200. ## chemistry

Pl help...what are the isomers of chlorodibromobenzene

201. ## Chemistry

One third of vanilla ice cream provides about 145 kcal of energy. A typical adult uses about 195 kcal/hr of energy while walking. If all of the energy in one third of a cup of vanilla ice cream were to be burned off by walking, how many minutes would it

202. ## Chemistry

The equation is N2 + O2 reacts 2NO Given 12.5 mg of oxygen reacts with 21.4 mg of Nitrogen what mass of product is formed

203. ## Math

a salesman has a 42% chance of a sale at his first stop and a 42% chance at his second stop and a 14% chance at both stops what are the odds he will make a sale only at the first stop

204. ## English

1. It wasn't dark yet. 2. It wasn't yet dark. 3. It was already dark. 4. It was dark already. ---------------------------- Thank you for your help. Are they all grammatical? 'Yet' seems to be placed at the end of a sentence. What about #2?

205. ## chemistry

Determine the mole fraction of lithium bromate in a 6.32 M aqueous solution of lithium bromate. The density of the solution is 1.16 g mL-1. I understand that 6.32 M of solution= mols of the compound. I multiplied 1000mL by the density to get grams. I don't

206. ## Pre-cal

Solve (in radians) sec x = 2csc x When I work it out, it gets to 2cot x - 1 = 0 cot x = 1/2 Would it be ok to use tan^-1 (2) ? I must demonstrate it with a graph as well... would the line go through Q I/III or II/IV ? Thank you!

207. ## Chemistry (Mass/volume)

What are factors that will contribute to achieving the lowest mass/volume ratio possible for an airbag? The "mass" includes the mass of the reactants, bag, and any additional materials you would use to make the airbag. The "volume" is of the inflated air

208. ## Chemistry

What are the isomers of chlorobromobenzene

209. ## Chemistry

Calcium Fluoride, CaF2, adopts the fluorite lattice, which is described as a face-centered cubic array of Ca2+ ions with F-1 ions with Ca2+ ions in half of the cubic holes. The Radii of Ca2+ and F-1 are 126 and 117 pm, respectively. Calculate the density

210. ## math

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

211. ## Algebra

Which equation has the graph parallel to the graph 9x + 3y =-22 y=3x-22**** y=-3x + 8 y=1/3x + 12 y = -1/3x-2 Please check my answer

212. ## Algebra

What is g(-2) for the function g(x) = x squared - 2? I got 0, but it was wrong. Please help! Thanks!

213. ## Algebra

Could someone give me an example of how to do a table of values on a graph when y=3?

214. ## math

A baseball team has 13 players; how many possible batting orders can the coach make if there are 9 players in the batting lineup?