# Questions Asked onNovember 16, 2014

1. ## statistics

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and prepreview ads before the movie starts. Many complain that the time devoted to previews is too long (The Wall Street Journal,

2. ## Chemistry

Estimate the percent ionic character of the BrF bond using this graph:

3. ## Chemistry

Which of the following is NOT true for ΔGrxn? A.) If ΔG°rxn > 0, the reaction is spontaneous in the forward direction. B.) If Q = 1, then ΔGrxn = ΔG°rxn.If ΔG°rxn = 0, the reaction is spontaneous in the reverse direction. C.) If ΔG°rxn > 0, the

4. ## AP CALC. AB

A particle moves along a line so that at time t, where 0

5. ## math

A power station is on one side of a river that is 3/4 mile wide, and a factory is 8 miles downstream on the other side of the river. It costs \$24 per foot to run power lines over land and \$30 per foot to run them under water.(1 mile = 5280 feet) Write the

6. ## English

What is moral lesson in Annabel Lee?

7. ## Chemistry

what does the Lewis Dot Structure of Sr(CN)2 look like?

8. ## Chemistry

if 5.00 ml of 1.66x10^-1 M HCl solution is diluted to exactly 250.0 ml with water, what is the concentration of the resulting solution?

9. ## Chemistry

Please help me with these problems, the book examples very different. I'm really confused. Any help with these will help me immensely. Thank you in advance! What I got were: 1.)c 2.)d 3.)a 4.)c 5.)b 1.) When is any endothermic reaction spontaneous? a.)When

10. ## Physics

A 1200 kg car pulls an 820 kg trailer over a rough road. The force of friction acting on the trailer is 650 N [backwards]. Calculate the force that the car exerts on the trailer if (a) the trailer is moving at a constant velocity of 30 km/h [forward] (b)

11. ## MATH

The table below represents the volume of a liquid sample as a function of its temperature: Temp (C) Volume (ml) x f(x) 11 95 16 100 21 105 26 110 The average rate of change of f(x) between x=11 to x=21 is _____ ml per C ((degrees)) and represents the rate

12. ## Pre Albergra

The Pentagons ABCDE and PQRST are Similar: Find the length x of TP

13. ## Math

A photocopy was made of Julie's watercolor painting. the photocopy resized the painting so that it measured 4 inches wide by 7 inches long. If the actual painting is 16 inches wide, what is the length?

14. ## Chemistry

Please also, help me set up this problem. Acetylene, C2H2, can be converted to ethane, C2H6, by a process known as hydrogenation. The reaction is C2H2(g)+2H2(g)⇌C2H6(g). Given the following data at standard conditions (all pressures equal to 1 atm and

15. ## Chemistry

Help me set up this problem. I have been looking at a few examples of similar problems and I keep getting the wrong answers. I'm getting really confused. Q: The standard free energy change ΔG∘ and the equilibrium constant K for a reaction can be related

16. ## Math

An airplane travels 226 miles in 2 hours. At that rate, how far will the airplane travel in 8 hours?

17. ## Art

Are my answers right? Which of the following is a convention Chinese artist Shen Zhou used in his brush paintings? He used only black ink to emphasize expressive brushstrokes. He painted several seated Buddha in the background. He painted flat, realistic

18. ## Chemistry

Which bond in urea is most polar? (P.S. I tried C-O and N-C-O, but it's incorrect)

19. ## spanish

Choose the answer that best completes the following sentence. _________ postres son deliciosos. a. El c. Unos b. Las d. La

20. ## Chemistry Buffers

Write reactions showing how each of the following buffers would neutralize added HCl. HF and NaF Express your answer as a balanced chemical equation. Identify all of the phases in your answer. HC2H3O2 and KC2H3O2 Express your answer as a balanced chemical

21. ## physical education

A 1kg ball is tossed straight up with a kinetic energy of 196J. How high does it go.

22. ## economics

Assume a firm is a monopsonist that can hire its first worker for \$6 but must increase the wage rate by \$3 to attract each successive worker (so that the second worker must be paid \$9, the third \$12, and so on). The marginal revenue product of labor is

23. ## chemistry Ben

50ml of 20.8% bacl2 and 100ml of 9.8% h2s04 solutions are mixed. molarity of cl ions in the resulting solutions is At.wt of ba = 137 100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of

24. ## LA - 1 question

Which of the following methods of organization would be best suited for a cause-and-effect essay about the events leading up to the American Revolution? order of importance spatial order chronological order descriptive order I feel like i somewhat know

Lisa hiked 7 miles of a 21-mile trail. What percent of the trail did she hike?

26. ## Math

Connie wants to have an annuity payment of \$2,000 at the END of every three months. How much should she deposit now at 6% interest, compounded quarterly, to yield this payment for 3 years?

27. ## math

Rainbow Harbor Cruises charges \$16/adult and \$8/child for a round-trip ticket. The records show that, on a certain weekend, 1400 took the cruise on Saturday and 1000 took the cruise on Sunday. The total receipts for Saturday were \$18,400, and the total

28. ## math

Tom is making meatloaf with 3/4 pound of turkey and 5/6 pound of ground beef. What is the LCM he should use to find the total number of pounds of meat? How many pounds of meat will be in the meat loaf? Show your work Completely.

29. ## statistics

The HIM coding supervisor agrees to pay a new graduate \$13.50 per hour. This is a full-time coding position at 2,080 hours per year. The cost for a full-time employee's fringe benefits is 24 percent of the employees salary. How much must the supervisor

30. ## geography

. Choose Europe, North Africa or Southwest Asia as the best region to contain Egypt. Write a paragraph explaining your choice. Remember to explain how formal, functional, and perceptual regions influenced your choice. Give specific details to support your

31. ## math

A zoo kitchen's weekley grocery list shows the zoo orders 56 pounds of bannas each week.The zoo kitchen uses the same number of pounds of bannas each day.

32. ## Chemistry

Please help me set up these problems. I have been staring at them for hours and I can't tell where I went wrong. Question: Consider the following reaction: CaCO3(s)→CaO(s)+CO2(g). Estimate ΔG∘ for this reaction at each of the following temperatures.

33. ## chemistry step by step for me

100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of h2s04 solution if final density is 1.25g/ml. 50ml of 20.8% bacl2 and 100ml of 938% h2s04 solutions are mixed. Molarity of cl ions in

34. ## chemistry

Consider the following reaction: 2 B5H9 + 12 O2 => 5 B2O3 + 9 H2O How many grams of B2O3 are made by the reaction of 233.8 g of O2

35. ## Chemistry

If a solution contains 0.65mol of OH−, how many moles of H+ would be required to reach the equivalence point in a titration?

36. ## physics

To create artificial gravity, the space station is rotating at a rate of 0.80 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 3.80. Each chamber A simulates an acceleration due to gravity of 10.0 m/s2.

37. ## English

What is the purpose of Annabel Lee by Edgar Allan Poe? What are some qualities and Character traits about of the Speaker in Annabel Lee? I need at least 5. so far I got romantic, dedicated, crazy, and obsessive .

38. ## math

A farmer has twice as many chickens as ducks. After selling 166 chicken and 29 ducks, he has twice as many ducks as chickens. How many chickens did he have to start??

39. ## Science, Chemistry

Write neutralization reactions for each of the following acids and bases. HNO3(aq) and Ba(OH)2(aq) Express your answer as a balanced chemical equation. Identify all of the phases in your answer.

40. ## science

the relative age of a rock is

41. ## statistics

The same supervisor in the scenario above agreed to increase the salary of the employee to \$15.00 per hour once she passed her RHIT exam. three months after beginning her employment, the employee passed her RHIT exam, What will the new budget be for salary

42. ## math

which lap has the slowest time out of these- 1.59, 1.85, or 1.64

43. ## calc

Each of the regions A, B, and C bounded by f(x) and the x-axis has area 5. Find the value of ∫2 [f(x)+3x^2+2]dx. −4 I know to solve I can find the antiderivative of the equation but im not sure how to do this because of the f(x) in the parentheses.

44. ## statistics

you currently lease scanning equipment at a cost of 1,500 per quarter and two copy machines at \$120 each per month. What will you need to budget annually for this leased equipment?

The best feature of an organizational structure that evolves naturally is its? A.economy. B.clarity. C.practicality. D.use of staff positions My best guess is D

46. ## Math 6th

Andy ran a 5-kilometer race in 40 minutes. If Andy maintains that same place, how many kilometers did Andy run In 1 hour?

47. ## Math

Yes, it is I again, with yet another math problem. The question is; In a bag, there are 8 white marbles, 8 blue marbles, 7 red marbles, and 6 yellow marbles. How many marbles does it take to pull out 3 marbles of the same color. (A)6 (B)9 (C)12 (D)15 (E)I

48. ## physics

A ball with radius 12cm rolls on a level surface, and the translational speed of the center of mass is 0.35 m/s. What is the angular speed about the center of mass if the ball rolls without slipping?

True or False- Infectious diseases are caused by organisms or viruses that enter and multiply within the body. Is the answer True?

Your body gets antibodies from A. immunizations B. being exposed to the virus or antibody and having your immune system make it. C. none of the above D. All of the above I'm a little confused on which answer to pick between A and D.

True or False infectious diseases are caused by organisms or viruses that enter and multiply within the body. Is the answer True?

Lindsay ate 7/8 of an apple. what percent of the apple did he eat? My answer is 875%. Is the answer 875% or 87.5%.

53. ## Chemistry

Assume you are performing the calibration step of Experiment 8 and you begin with 50 g of water at 20 oC and 50 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,

54. ## LA - 1 question

Which of the following should you do during your third read of the multi-draft reading process? identify the author's tone and viewpoint evaluate how the selection compares to another examine the type of organization used in the selection determine the

55. ## Chemistry

Consider the reaction 2 SO2(g) + O2(g) in equilibrium with 2 SO3(g) . At 25°C delta H° = -197.78 kJ and delta S° = -187.95 J/K. Using this information, calculate the equilibrium constant for the reaction at -32°C. (R = 8.314 J/K) Enter your answer

Which of the following is an example of an external source? I. Memos sent to the employees of a company, 2. Financial reports published by a company, 3. Company databases, and 4. Industry journals.

57. ## physics

A basketball player shoots the ball from a height of 2.22 m above the floor at a horizontal distance of 1 m from the basket which is 3.05 m above the floor. If she shoots the ball at an angle of 42° above the horizontal, what initial speed must she throw

58. ## Math

Your bank pays 9% interest, compounded annually. Use the appropriate formula to find how much you should deposit now to yeild an annuity payment of \$800 at the END of each year, for 10 years?

59. ## math

Darion needs 20 pieces of string 3/8 inch in length .He cut a 4 7/8 inch piece of string into pieces that are 3/8 of a inch long each. How many more pieces of string does he need?

60. ## English Grammar

The homework this week is over sentence transformations. The question asks: 1.) Write the positive declarative sentence that corresponds to the transformed sentence 2.) Identify the sentence type Sentence: What courses have been scheduled for next fall? I

61. ## proportion test

In a manufacturing plant, the old machine produced widgets with a defect rate of 12%. The boss wants to check if the new machine has a different defect rate. So he took a random of 820 widgets, and found 85 of them were defective. Are these results

62. ## chemistry

100ml of h2s04 solution having molarity 1M and density 1.5g/ml is mixed with 400ml of water. Calculate final molarity of h2s04 solution if final density is 1.25g/ml 50ml of 20.8% bacl2 and 100ml of 9.8% h2s04 solutions are mixed. Molarity of cl ions in the

63. ## E.D. Tech Help Please

What does it mean to say that a country's land area is positively correlated with its population? A.The larger the land area of a country, the higher its population tends to be. B. The smaller the land area of a country,the higher its population tends to

64. ## physics

A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 22.7 m/s. At the same time, it has a horizontal velocity of 58.9 m/s. At what speed does the vehicle move along its descent path? Answer in units of m/s At what

65. ## physics

A roller coaster cart of mass m = 201 kg starts stationary at point A, where h1 = 27.7 m and a while later is at B, where h2 = 7.1 m. The acceleration of gravity is 9.8 m/s 2. What is the potential energy of the cart relative to the ground at A? Answer in

66. ## proportion test

How to solve this? In a manufacturing plant, the old machine produced widgets with a defect rate of 12%. The boss wants to check if the new machine has a different defect rate. So he took a random of 820 widgets, and found 85 of them were defective. Are

67. ## intermediate algebra

A model rocket Is launched from a height of 50ft. The formula h=-16t^2+70t +50 describes the rocket's height,h,in feet seconds after it was launched. How long will it take the rocket to reach to reachthe ground?

68. ## chemistry

Consider the following reaction: 2 B5H9 + 12 O2 => 5 B2O3 + 9 H2O How many grams of O2 are needed to make 432.7 g of H2O?

69. ## Art History

An influence on the bowl with kufic border from Samarkand is: A. Chinese porcelain. B. Korean celadon. C. Greek pottery. D. Byzantine mosaic. I think it's D. Am I right?

70. ## statistics

A Coach found the correlation between physical fitness and athletic ability to be r=.65. the mean and standard deviation of the physical fitness test was 330, 50. the mean and standard deviation of the athletic ability test was 9, 2. If you have a physical

71. ## Math

The inflection point of the curve y = x4 − 8x3 + 24x2 + 7x − 3 is? So I got (1,21) I was wondering if this is correct because sometimes I will be doing something completely wrong and not even realize it.

an example of homeostasis is A) maintaining a constant body temperature B) responding to stimuli C) keeping the same number of cells in an organisms D)all of the above I put A) and had the wrong answer. I put that answer since homeostasis is maintaining a

73. ## English

How would you describe waiting at a school bus stop in third person? Also trying to use metaphors and personification.

74. ## physics

1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in

75. ## statistics

An employee currently earning \$13.85 per hour has been awarded a 3.5 percent merit raise. what will the employee's hourly salary be with this increase?

76. ## Physics

The pistons of a hydraulic press have radii of 2.00cm and 12.00cm, respectively. A) What force must be applied to the smaller piston to exert a force of 5250N on the larger piston? B) What is the pressure in (N/cm2) on each piston? C) What is the

77. ## Physics

A brick of mass 2.3 kg is lifted to a height of 1.9 m. How much gravitational potential energy is added to the brick? Acceleration due to gravity is g = 9.8 m/s2.

78. ## Physics

You have a tanker that is filled with olive oil, which total mass = 200 kg. The tanker is in the shape of a rectangular box w/vertical sides and a horizontal cross-sectional area 0.9 m^2. How deep a swimming pool do you need so that the tanker doesn't hit

79. ## Math help/check

Suppose the functions f and g and their derivatives have the following values at x = 1 and x = 2. Let h(x) = f(g(x)). Evaluate h′(1). X | f(x) G(x) f'(x) g'(x) ____________________________ 1 | 8 2 1/3 -3 2 | 3 -4 2π 5 My answer: -6π

80. ## epidemiology

A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Four hundred (400) people are screened at a clinic during the first year the new test is

81. ## Chemistry

8.5g of sample of iron required just 75cm3 of 3.00M HCl to dissolve it and give a neutral solution.Calculate the percentage purity of the sample of iron.

82. ## Art History

Who ruled Byzantium in its first “golden age”? A. Constantine B. Charlemagne C. Justinian D. Muhammad II My text mentions but A and C, but I am leaning towards A.

83. ## physics

A 70.3-kg person puts on a life jacket, jumps into the water, and floats. The jacket has a volume of 3.07 x 10-2 m3 and is completely submerged under the water. The volume of the person's body that is underwater is 6.49 x 10-2 m3. What is the density of

84. ## English

what does the diction and details reveal about the tone in this passage. "When first I took up my abode in the woods, that is, began to spend my nights as well as days there, which, by accident, was on Independence Day, or the Fourth of July, 1845, my

85. ## math

A cylindrical water tank has a diameter of 1.2 m and a height of 1.5 m.How many liters of water can it hold the nearest liter?

86. ## Math

An equilateral triangle is inscribed in a circle. If the radius of the circle is 10 cm, calculate the length of a side of the triangle. Answer to nearest whole centimetre

87. ## math

4 multiple choice questions with 3 possible answers. What is the probability of answering the first, third, and fourth question correctly? 1/3 x 1/3 x 1/3 1/3 = 1/81

88. ## Calculus

This is the question: i[dot]imgur[dot]com/EHneTuB[dot]jpg Am i correct in simply adding 1 + (-3), and equates to (-2) being the answer.

89. ## Elementary Math

Miriam is four years older than Ricardo. Ten years ago Miriam was 3 times as old as Ricardo was then. How old are they now?

Which one of the following elements is part of an organizations broad environment?A.)stockholders B.)political trends C.)competitors D.)labor unions

91. ## Probabilitys Math

After the last game of the season a football team goes out for ice cream. Each player orders a triple cup of ice cream with a topping.Each order has 3 diffrent flavors, order doesnt matter.The shop has 7 diffrent flavors and 2 toppings to choose from iss

92. ## Calculus Help

If f(x) = sin(7 − 5x), find f′(π), which is the derivative at π: −0.754 −0.657 0 0.657 3.770 I chose 0.657 ... I did not really get this exact answer, its just that while I was trying to figure this out my answer was actually 0.6978 but I just

93. ## Math

Find the value of b, if any, that will make the function differentiable at x = 0 g(x)= { x+b, x

94. ## physics

An air puck of mass 0.278 kg is tied to a string and allowed to revolve in a circle of radius 1.25 m on a horizontal, frictionless table. The other end of the string passes through a hole in the center of the table and a mass of 0.45 kg is tied to it. The

95. ## math

find the volume triangular pyramid: triangle base 20mm triangle height 22mm, pyramid height 14mm

A new business has been launched with four employees who work for the entrepreneur-owner. As the owner contemplates growth in sales and personnel, she realizes that the next step of growth will involve the special problem of? A.intermediate supervision

97. ## English

what does the diction and details reveal about the tone in this passage. "When first I took up my abode in the woods, that is, began to spend my nights as well as days there, which, by accident, was on Independence Day, or the Fourth of July, 1845, my

98. ## physics

Suppose we wish to use a 4.0 m iron bar to lift a heavy object by using it as a lever. If we place the pivot point at a distance of 0.5 m from the end of the bar that is in contact with the load and we can exert a downward force of 640 N on the other end

1) In 2011, the total of all residential customers in Halton Region used 54 540 000 m3 of water. Halton Region has a population of around 500 000 people and Milton (part of Halton Region) has a population of around 85 000 people. Assuming all people in

100. ## physics

A solid disk rotates in the horizontal plane at an angular velocity of 0.040 rad/s with respect to an axis perpendicular to the disk at its center. The moment of inertia of the disk is 0.13 kg·m2. From above, sand is dropped straight down onto this

101. ## Chem HW

COVALENT COMPOUNDS WORKSHEET 1. Find the Bond Lengths in the following compounds: report in pm a) SiF4 __________________________________________________ b) N2S3 : N-N________________ N-S _______________________________ c) HBr

102. ## Physics

A ball is thrown horizontally from the top of a building 45.9 m high. The ball strikes the ground at a point 121 m from the base of the building. The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s Find the

103. ## chemistry

Consider the reaction, 3 H2(g) + N2(g) => 2 NH3(g). How many grams of NH3 will be made by the reaction of 3 moles of H2(g) with 18 moles of N2(g

104. ## Geometry

Write a proof for the following Given: line AC is congruent to line BD, line AD is congruent to BC Prove: triangle DAX is congruent to triangle CBX It's an isosceles trapezoid. From top left is labeled A. Top right labeled B. Bottom right labeled C. Bottom

105. ## Financing

K Group just paid a \$1.25 dividend per share. The dividend is expected to grow at 28% per annum for the next eight years. After that, this growth rate is expected to be 6% indefinitely. Presume that the beta of K Group is 1.2, and the risk premium 7.5% and

106. ## Chemistry

Write a balanced formula equation with phase indicators: Strong heating of copper(II) nitrate trihydrate produces copper (II) oxide, nitrogen dioxide, oxygen gas, and water (The part I'm confused about is how to write the molecular formula for copper (II)

107. ## arithmetic

If you spent 85% of your money and have only \$75.00 left, how much money did you start with?

108. ## math

the movie theater had 52 more occupied seats than empty seats. there are a total of 320 seats in the theater. How many seats were occupied?

109. ## History

Andrew Jackson, was he really a president who stood up for the "common man" or did he become abusive of power and his office?

110. ## math fractions

•math - Ms. Sue, Sunday, November 16, 2014 at 12:39pm 12 •math - bob, Sunday, November 16, 2014 at 12:56pm Ms. Sue can you tell me how you got that answer please. •math - Ms. Sue, Sunday, November 16, 2014 at 1:09pm Multiples of 6: 6, 12, 18, 24

111. ## chemistry

Consider the equation: N2 + 3 H2 =>2 NH3. How many moles of NH3 will be made from 4.2 x 1023 molecules of N2? Give your answer to one decimal place.

112. ## Science

How and why do theories change?

113. ## Physics

A 25 kg box is being pulled across a surface. The coefficient of kinetic friction between the box and the surface is 0.55. a) if the box is moving at a constant speed, what is the pulling force? b)If the pulling force is 350 N, what is the NET force acting

114. ## Math

Joan ran for 2.25 hours burning 3075.5 calories per hour how many total calories does he burn

115. ## English

What components make up a compendious meganovel and how is this related to being a "Great American Book?" Thanks

116. ## calculus

1. A particle moves along the x-axis, it's position at timer given by x(t)=t/(1+t^2), t greater than or equal to 0,where t is measured in seconds and x in meters. a) find the velocity at time t. I am a little confused.. Do I find the derivative by using

117. ## English

Does motion sensing need a hyphen?

118. ## algebra

Graph the piecewise function given by f(x)= -1/3x +2, x0

119. ## Cal

Which of the following functions is continuous but not differentiable at x = 1? Functions: I.y=3√x-1 II.y={x^2,x≤1 2x,x>1 III. y={x,x≤1 1/x,x>1 I'm not really sure how to do this, but I've been trying and I keep getting both I and III.. am I wrong?

120. ## English

1. The hospital is for certain people. 2. He has a certain problem. 3. He has a sure problem. 4. He is certain that the boy is diligent. -------------------------- Are they all grammatical? The meaning of 'certain' seems to be different. Does #2 mean #3?

121. ## English

Do you know of any websites that have chapter summaries for the book "Plague of Doves?" Thanks!

122. ## chemistry

Consider the reaction, 4 NH3 + 5 O2 => 4 NO + 6 H2O How many grams of NO will be made from 10.7 moles of O2?

123. ## statistics

The forms used in your coding area cost \$100.00 per 1,000 forms for the first 2,000 and \$50 for every 1,000 thereafter. If you need to order 5,000 forms, what is the total cost?

124. ## science

If 19:3 of iron ore (Fe2O3) reacts completely with carbon monoxide . Calculate the mass of iron Fe that is formed

125. ## law

How do you feel about juvenile delinquency?

126. ## Calculus

If I derive the following, d/dt((a)S(t^2) of (s)^(1/2)ds with S being integral notation (a) being at the bottom of the notation and being a constant (t^2) being at the top of the notation ..I first apply the fundamental theorem of calculus to get..

127. ## statistics

How many ways can the sequence ANNV be arranged

128. ## Physics

What is the kinetic energy in MeV of a π–meson that lives 1.80×10-16 s as measured in the laboratory, and 0.840×10-16 s when at rest relative to an observer, given that its rest energy is 135 MeV?

129. ## Math

How is math and recycling related?

130. ## Calculus

These two q's for my homework I am very confused on how to do: First Question: Using Newton’s method, approximate the value of √5 up to 2 decimal points starting with x1 = 3. 2nd Question: Thomas Malthus was an economist that predicted that the

131. ## math/fractiom

One-fifth of your art-supply money goes for brushes. If you also spend 1 2 of your money on paint, what fraction of your money will you have left?

132. ## math

when a traffic light turns green, a car accelerates at a constant rate, the decelerates in the same manner to stop at the next traffic light. The speed of the car, s, is given by the equation, s=-10 /t-8/ + 80 where t is time. Find the time , t, it takes

133. ## Math (calculus)

Prof gave us this question to practice but I do not know how to solve it. If you know please provide step by step with the answer so I can understand it. Thank you very much :) Suppose a rocket is launched from the ground with 10 seconds worth of fuel. The

134. ## Math:Algebra

Maya has 2 times as many apples as Ally if Ally has 87 apples how many apples dose Maya have now? Maya's sister takes some away. Write an algebraic expression that represents the amount of apples they have now?

135. ## Physics

For the situation: "A moving crate slides to a halt on a rough surface" Does temperature increase, decrease, or not change? Are work and heat positive, negative, or zero? Does thermal energy increase, decrease, or not change? My answer key says temperature

136. ## English

1. Listening to loud music isn't good for your ears, either. 2. Also, listening to loud music isn't good for your ears. ------------ Are both the same in meaning?

137. ## Physics question

What are some examples of vector calculations in travel in the real world. I can't really think of some that have to go with travel. I can see how vector calculations could happen in sports..But I cant really see how in travel. Can you help me?

138. ## law

What is the context of the juvenile justice system

139. ## math

Is this correct- 0.685 x 100 =68.5

140. ## Math

The tank is 1/2 full of water. The. A spherical wrecking ball with radius of 2ft is dropped into the tank. How far will the water level rise once the sphere is completely submerged? I cant figure it out. I've been trying for two days now. And its due..

141. ## Math

Find all possible rational roots using the rational root theorem. 3x^3 + 2x^2 - 1 = 0 plus/minus 1/3 and plus/minus 1?

142. ## Math Elementary Linear Algebra

determine whether or not the given set forms a basis for the indicated subspace: #1 {1,1,0), (1,1,1)} for the subspace of R^3 of all (x,y,z) such that y= x+z #2 {[1,2,-1,3), (0,0,0,0)} for the subspace of R^4 of all vectors of the form (a,b, a-b,a+b) and

143. ## physics

Objects of masses m1 = 4.00 kg and m2 = 9.00 kg are connected by a light string that passes over a frictionless pulley as in Figure P4.48. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of θ = 36.0°. The objects are released

144. ## Math

16 dogs share a bowl of food. Each dog eats half a cup. Write & solve a division equation to find how much dog food was in bowl. Would this be c=16/2 c=8 (c=cups) Thanks for your help.

145. ## English

I am supposed to paraphrase the ideas that Emerson introduces in this passage "There is a time in every man's education when he arrives at the conviction that envy is ignorance; that imitation is suicide; that he must take himself for better for worse as

146. ## statistics

if your HIM department has 100,000 active records and you received 5,352 requests for records within a six-month period, what is the request rate for the past six months?

147. ## English

1. Don't touch. 2. Don't take pictures 3. Don't bring pets. 4. Don't bring/use _______________. 5. Don't use cellphones. --------------------- There are five kinds of signs. They are stop signs. There is a line from the top left to the bottom right. Are

148. ## Pre-Cal

If g(x) = tan (5x2), then g ′(x) = ? I've worked this problem out like four times already and I keep getting a complete different answer..So I think I'm doing it wrong. These are the answers I have gotten while doing this problem. g'(x)= cosx^2 5tan

149. ## Trig

Determine the intervals of continuity of f(x)= ln(sin(x)) I looked at the graph and I have no idea how to state the intervals.

150. ## Honors Science

Why would vinegar be expressed in liters and milliliters?

151. ## chemistry

Consider the equation: N2 + 3 H2 =>2 NH3. How many moles of NH3 will be made from 2.1 x 1024 molecules of N2?

152. ## physics

a 7 kg ball is thrown into the air from ground level with an initial velocity of 24m/s. Determine the ball's maximum height. Use conservation of energy. help!!!

153. ## Math

In a coordinate plane, Brittany labeled the coordinates for point m as (-31/2,2). Sade tells Brittany to reflect point m over the x axis to point r. What are the coordinate of point r?

154. ## math

What is the GCF of 8 and 24? What is the LCM of 8 and 24?Write the sum of 8 + 24 as the product of its GCF and another sum.

155. ## Computing: Simple Python

Hi this is the code I'm working on, but every time I run it, every character inputted is printed, so hello becomes 'h','e','l','l','o', even numbers! I can't seem to fix it so that it can be added to the list and printed normally, thanks! #Printing the

156. ## Statistics

Community Health Center, a new patient clinic in your town serving only underinsured and uninsured patients, has asked you to help its HIM department get started. Calculate the number of new shelving units needed for a medical record filing system based on

157. ## Math

Complete number line from 0 to 3 in thirds. In fractions.

158. ## Chemistry (Acid&Base)

How many mL of 0.203 M HCl(aq) are required to prepare a diluted solution that has a concentration of 0.0433 M in a 100-mL volumetric flask?

159. ## Statistics

It takes approximately 15 minutes to code one record, How many personnel hours would be needed to code 1,424 discharges for the month?

160. ## math

52.36*0.3*5.65?

161. ## physics

What is the kinetic energy in MeV of a π–meson that lives 1.80×10-16 s as measured in the laboratory, and 0.840×10-16 s when at rest relative to an observer, given that its rest energy is 135 MeV?

162. ## Thank Jiskha tutors

I really appreciate all that you tutors do for us, I know we may be a bit demanding sometimes XD but we really love how you guys are always there to help us out. Coming from experience, I've had some past teachers that aren't as willing to help us when we

163. ## MATH 101

Find f(x)if f(3) = 0 and f(−4) = 0.

164. ## MATH 101

Solve the equation. You will have three solutions. X^3-8=0

165. ## 1210 Math

A projectile follows a parabolic path whose height, in meters, is given by the function f(x) =-x^+2x+2, find the maximum horizontal distance that the projectile may cover

166. ## Math

Find all possible rational roots using the rational root theorem. x^4 - 3x^2 + 12 = 0 Plus/minus 1, 2, 3, 4, 6, 12?

While having breakfast with a friend she tells you that her office recently implemented flex-time hours. It has been a positive change at his work place, and you think that it would be great to have this at your office too. You decide to approach your boss

These two q's for my homework I am very confused on how to do: First Question: Using Newton’s method, approximate the value of √5 up to 2 decimal points starting with x1 = 3. 2nd Question: Thomas Malthus was an economist that predicted that the

what number is 15% of 50? I'm working this problem two different ways and I'm getting different answers. my two answers are 30 or 7.5. Can somebody tell me which answer is correct?

170. ## math

I need to figure coupon code. Code is 5 43000 18670 6. Do i subtract the 5 or add?

171. ## Science-DNA

Why DNA cannot grow from 3’ to 5’ direction — why this is important for proofreading?

172. ## French

What colours mix well with !@#\$%^&hsia?

173. ## statistics

After one month of operation, the health information services at Community Health Center determined that there were two records misfiled out of the 450 active records. What is the filing accuracy rate for this area?

174. ## CAL

The slope of the tangent line to the graph y= x^3/x -x at the point (1, -2/3) I keep getting undefined as a answer but.. I feel like I might be doing something wrong because I feel like that is not the answer, can you help me please?

175. ## Math

Solve (16x^2)^-3/4 Please help using step by step. I don't understand how to do this. Thank you

176. ## math

how many cubic inches in 7'8"L, 12'2"W, 10'1" tall? please show how you get to the answer. I added up the feet (7+12+10=29 ft) and multiplied by 12 inches (29x12=348 in), then added on the remaining inches (8+2+1=11, 348+11) to come up with an answer of

177. ## Debate English

In a debate, after the opposing team poses a question, can our team just stand up and answer or do we have to wait until someone tells us that we are allowed to answer?

178. ## statistics

The 95 percent confidence interval about a mean difference was -3.0 minutes to 6.5 minutes. The null hypothesis that the two population means are equal

179. ## law

Are parents and school management playing a suitable role to control increasing school violence? If not, what else can they do to help solve the problem of school violence?

180. ## Genetics

A portion of alcohol dehydrogenase enzyme contains 375 amino acids. Including both amino acid and all other necessary codes, how long is the coding portion of the corresponding mRNA? Thanks

181. ## chemistry

2.15 g of a substance X contain 4.34 x 1022 molecules of X. Calculate the molar mass of X in g/mol.

182. ## physics

You have a coil with 20 loops inside a magnetic field generator that is temporarily generating a field that has a rate of change of -0.25. The other end of this coil is wrapped around a core with 15 turns. How many turns must a second coil wrapped around

183. ## English

In the sentence Mr. Ortiz plays the violin in a local orchestra. Is plays present or present participle?

184. ## Math

Surveyors with a highway planning crew measure a section of proposed roadway to be 4.4 km. They measure the angle of inclination over the 4.4 km to be 8.5 degrees. Determine the change in altitude for drivers travelling from one end to the other. Answer to

185. ## English

Where would I put the apostrophe on: Close the children's mouths? Since there is more than one child and more than one mouth, is it before or after the s?

186. ## Math

show that the set of all m-vectors whose first components is 0 (of R^m)

187. ## Calc

evaluate the integral of 2e^xdx from -5 to 5.

How is math and recycling related?

189. ## Chemistry

How many moles of CO2 will be made from 115.4 grams of C3H8?

190. ## Crime Scene Sketching

you will have the opportunity to practice sketching a room. Take measurements of a small room to which you have access. Plot out the simple floor plan. Review the methods of measurement and select one for this project. Pick an object in your room and use

191. ## Chemistry

Are there any chemical reactions or observations that involve sodium hydroxide or any other bases, but cannot be used to confirm its basic nature?

192. ## Mathematics

Arrange 6/8 ; 1/6 ; 3/3 in increasing order

193. ## Science

I need help! What are eight examples of simple machines And eight examples of compound machines I can't think of more right now

194. ## Derivative

Can you help me find the derivative of y= cos(x)/1+sin(x).. the / is a fraction bar. I have a hard time finding trig derivatives because I don't really know what the derivative of cos,sin ,or tan would be honestly.

195. ## algebra 2

h(t)=-4.9t^2+30.5t+8.5

196. ## math

How do i find solutions to 20x^3-125x=0?

197. ## science

Write the oxdation state of manganese : mncl2 mno4 mno-4

198. ## math

solve for x x+√(31-9x)=5

199. ## law

Are the juvenile courts doing enough to change the treatment of juveniles in the justice system?

200. ## arithmetic

How do I solve 15x=75?

201. ## spelling spree

word hunt write the spelling word that you find in each of the longer words below example: restored

202. ## algebra

w(3w-1)=200 solve for w

203. ## math

52.36*0.3*5.65