# Questions Asked onNovember 25, 2015

1. ## Ciencias

ocasionalmente los hospitales tienen brote de infecciones por la bacteria estafilococos la cual reciste el tratamiento con antibiótico que una vez fuera efectivo. ¿cual es la explicación más aceptable para esta situación?

2. ## math

The marginal cost of production (in Rs) is 3 + x/3000 + e^(-0.03x), where x denotes the number of units. The cost of producing 100th unit is:

3. ## Science

Why the átomo never seen before

4. ## Chemistry

1.)An ammonia/ammonium buffer solution contains 0.35 M NH3 and 0.72 M NH4+. The Kb value of ammonia is 1.8×10−5. Calculate the pH of this buffer. 2.) Nitrous acid has a Ka of 4.5×10−4. What is the pH of a buffer solution containing 0.15 M HNO2 and

5. ## English

Agnostic: Religous:: Salesperson:Persuasive Secretary: telephone Hermit:social corn: crop For each item, figure out the relationship between these two words? Can you help explain this to me

6. ## Maths

The temperature is shown at 6:00am. It is rising at one degree every thirty minutes. At this rate, it will be 20 degrees at what time?

7. ## English

Can you explain to me how to do this Each item below starts with a pair of words in CAPITAL LETTERS. For each item, figure out the relationship between these two words. Then decide which choice of the choices (A, B, C, or D) expresses a similar

8. ## English

can u guys help me add some adverbs (6 or 10) to this story that i summarized thanks in advance!! (^_^): Black, cloudy night-time hung over the backdrop of the house. The grey, ramshackle walls of the house looked worn and forbidding, and the dilapidated

9. ## math

15/box is a fraction that lies between 1/7 and 1/8. what is the missing whole number in the box?

10. ## math

A company produces x units of output at a total cost of 1/3 x^3 – 18x^2 + 160x. Output at which average cost is equal to marginal cost is:

11. ## Maths

Mr Gosh purchased wrist watches worth Rs 60000. He sold one-third of them at a profit of 20% and remaining at a loss of 5%. Calculate his overall profit or loss percentage.

12. ## chemistry

explain how you would obtain solid lead carbonate from a mixture of lead carbonate and sodium carbonate powder

13. ## Physics

How does using the concept of resonance determine the speed of sound an in experiment? In other words, I'm wondering how the concept of resonance works

14. ## Physics

In this sound interferometer, sound waves enter at A and travel to C via paths ABC and ADC. the intensity of the sound can be determined by the microphone placed at C. The length of the path ADC can be changed by a sliding tube. The frequency is fixed at a

15. ## math

seven years ago, Mary was 6 times as old as Cora, In 1 year, she will be only twice as old as Cora. Find their present ages

16. ## math

Jade's age now is the same as Timmy's five years hence. Timmy's age six years ago was half Jade's age now. Find the present age of each.

17. ## Mathematics

A number is 8 more than another number. The product of these two numbers is 20. Find the numbers.

18. ## physics

formular for looking maximum speed reached

19. ## PHYSICS

a 72N force accelerates mass m, by 5.0 m/s^2 the same force acts on another mass m2 and imparts to it an acceleration of 20.0 m/s^2. what acceleration will the same force impart to the two masses when they are joined?

20. ## electron theory and ohms law

what voltage must be applied to a 6.4-ohm lamp filament to develop 20 amperes of current?

21. ## Physical

At t = 0 s time a stone is thrown from the top of a cliff above a lake. Another stone is thrown down from the same point , 1.6 s later , with a initial velocity of 32.0 m / s. The two stones hit the water in one instant. Determine the cliff height.

22. ## electron theory and ohm law

if the 5-ohm heater in problem 15 is placed with a 15-ohm heater, what current will the 15-ohm heater draw from the same power supply?

23. ## math

Air is pumped into a spherical balloon at the rate of 20cm^3/s^-1.find the rate of change of radius of the balloon when the radius is 6cm

24. ## derivrtives

Find the derivative of d^2Y/dx^2 of y=e^2t and x=cost^2 and leave your answer in terms of x and y

25. ## physics

water and glass with refractive index of 1.5 are interfaced.if the incident ray are from the water makes an angle 60 degrees with the normal.find the direction of the reflected and refracted rays(given that refractive index of glass to water=1.33)

26. ## physics

Shows three boxes connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The mass of the boxes are mA = 5 kg, mB = 2 kg, and mC = 3kg. When the system is released from rest, Calculate (a) the

27. ## calculas

airplanes fly from left to right along the path y=1+(1/x)and can shoot their bullets in the tangent direction at creatures placed along the x-axis at x=1,2,3,4 and 5.determine whether a creature will be hit if the player shoots when the plane is at p(1,2)

28. ## Physics

Draw areal velocity versus time graph for Mars.

29. ## Math

I am the product of 135 and decreased by 500. who am I?

30. ## Algebra

A page of print containing 144 square centimeters of printed region has a margin of 4 and 1/2 centimeters at the top and bottom and a matgin of 2 centimeters at the sides. What are the dimensions of the oage if the width across the page is four units of

31. ## Algebra

A rectangular box is to be made from a piece of cardboard 6 cm wide and 14 cm long by cutting out squares of the same size from the four corners and turning up the sides. If the volume of the box is to be 40 cm^3, what should the length of the side of the

32. ## Education

How are the “image of the child” and the “image of the teacher connected"?

33. ## algebra

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle.

34. ## algebra

The length of a rectangle is 5cm more than twice the width. The perimeter of the rectangle is 66 cm. Find the dimensions of the rectangle.

35. ## Physics

a 0.15 kg sample of Alloy is heated 540°C. it is then quickly placed in 400 g of H2O at 10°C which is contain in a 200 g aluminum cup. the final temperature of the mixture is 20. 5 °C. calculate the specific heat of alloy.

36. ## Jenna

Write the correct form of ipse as it would be translated in the sentence. 1) The Roman boys themselves were accompanied to school by a paedagogus 2) I saw the girls themselves in the Forum Romanum. 3) I give heartiest accolades to Caesar himself. 4) By the

asked by Latin II
37. ## french

Could you translate this question so I know what its asking? Tu trouves dix euros. Qu est-ce que tu as?

38. ## English

Do you agree or disagree with the statement children should begin studying a foreign languages as soon as they start school

39. ## English

In "The Secret Life of Walter Mitty" the wife's character is most developed by A. expostion. B. her thoughts. C. Walter's words. D. her dialogue with Walter.**** Thank you

40. ## English

We are reading the short story Superstitions out of the book "GreatBooks Roundtable". I am being test on a few questions and need some help! After her conversation with her mother, Frances most likely feels what? a) informed b) frightened c) comforted d)

1. The functions of the respiratory system are (select all that apply) A. to pump blood to your body B. to deliver oxygen to the body C. to remove carbon dioxide from the body D. to absorb nutrients 2. The dome-shaped muscle that lies below the lungs and

42. ## help fast fast

analyze how islam spread among southeast asia trade routes

43. ## Mat 300/statistics

In how many ways can a committee consisting of 2 faculty members and 3 students be for there are 11 faculty members and 14 students eligible to serve on the committee?

44. ## Chemistry

A sample of air was passed through an electrical discharge causing the following reaction N2(g) + O2(g)->2NO(g) . Assuming that 1.00 mole of air (78% N2, 21% O2) was originally present at 1.00 atm, determine the partial pressure (in atm) of NO at

45. ## Physics

Three charges are located along the x axis as shown in the drawing. The mass of the -1.2 uC is 4.0×10^-9 kg. Determine the magnitude and direction of the acceleration of the -1.2 uC charge when it is allowed to move if the other two charges remain fixed.

46. ## Calculus 1

Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = cube root(x) , 0 ≤ x ≤ 27

47. ## Calculus 1

Use a graph to give a rough estimate of the area of the region that lies beneath the given curve. Then find the exact area. y = x^−3, 2 ≤ x ≤ 5

48. ## Ashworth

Why are many fad diets considered unhealthy?

49. ## English/ Could you please verify my answer

1) WHICH OF THE FOLLOWING IS A COMPOUND SENTENCE? a) Butterflies and hummingbirds feed on the nectar of flowering plants. b) Because fraud is so common is some corporations, regulatory agencies are overworked. c) Because Viceroy butterflies migrate over

50. ## Physics

In a container of negligible mass, 0.100 kg of steam at 110°C and atmospheric pressure is added to 1.00 kg of water at 20.0°C. (a) If no heat is lost to the surroundings, what is the final temperature of the system? (b) At the final temperature, how many

51. ## maths

Help me on these questions! 1. The teacher's bill for €15 worth of copies and 8 English workbooks was €35. What did each workbook cost? 2. Patrick spent 30% of his money on a football and 60% of it on football boots. If Patrick had €3 left, how much

52. ## maths

Helpp mee!!! I'm really stuck so I need help. Teresa has three times as much money as Rita. Between them they have €10. How much has Teresa?

53. ## entrepreneurship 1

My own bakery, but I don't know what to put for demographics, pyschographics, or buying pattern? Demographics: women 15-48 years(we accept everyone but i believe this is my topic consumer),...... pyschographics: family oriented, someone who cares about

54. ## Geometry 1 question

A(-3,3) ---> A' is a glide reflection where the translation is (x,y) (x+5,y), and the line of reflection is y=1. What are the coordinates of A'? (2,-3) (-3,5) (5,1) (2,5) ---> is an arrow. I am not good on glide reflections and I'm very stuck on this one:(

55. ## which of these actions would most help a worker im

which of these actions would most help a worker improve their productivity? A: Finding a new job in a different field. B: Taking a training course related to her job. ****** C: Buying a laptop computer for home use. D: asking her employer to give her a

56. ## Geometry

A dilation has center (0, 0, 0). Find the image of the point (-1, -2, 0) for the scale factor of 3. Please help? Thanks

57. ## Pre Calculas

If you deposit \$5,000 in an account that pays 5% interest compounded annually, how much money will you have in your account at the end of 15 years? Write an exponential function that represents this situation. I got 1,500,000 but im not sure if i did it

58. ## Algebra

Steve made a business trip of 254 miles. He averaged 57 MPH for the first part and 56 MPH for the second part. If the trip took 4.5 hours, how long did he travel at each rate?

59. ## Statistics

3. For the following data set, the dependent variable {response) is the first variable. Choose the independent variables {predictors) as you judge appropriate. Use a spreadsheet or a statistical package (e.g., SPSS or SYSTAT or MIN1TAB) to perform the

60. ## Social Studies

What does this graph suggest about the costs and benefits of balancing the budget? I have a bar graph that shows the following data: The title of the graph is "How Americans Want to Balance the Budget". Only with spending cuts: 20% Mostly with spending

61. ## Pre Calculas

Need help Give an example of an exponential function that goes through the point (0,4) .

62. ## differential equations

Convert x''+ sin(x) = 0 into a first order system of equations. (x'' refers to the second derivative of x). I tried: y1 = sin(x) y2 = x' {y1' = cosx {y2' = -sinx Not sure if I did it right.

63. ## Physics

What is the mass of a copper wire that will give a wire, 0.20mm in diameter, a resistance of 400 ohms can you please show me the formulas

64. ## Chemistry

Write the formulas of the compounds formed by NH4+ with the following anions: CN-, ClO3-, SO42-, H2PO4-

65. ## Health (STD's)

Explain successful methods to prevent, detect, and treat communicable diseases. You don't have to give me the answer all I need is some good websites.

66. ## english

(1) Jack had been without a car since Monday. (2) The car needed a new battery, and Jack was broke. (3) Although he was embarrassed, Jack called his mother. (4) He felt he had no choice. (5) Fortunately, his mom was happy to help out. (6) She said she had

67. ## chemistry

how many molecules are present in a 750 ml of C6H12O6

68. ## Math

True or false: If a is any positive real number, the graph of y=a^x will go through the point (0,1). True or false: x^3+2x^2 is an exponential equation because it contains exponents. I got true for both of them is that right?

69. ## math

32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me

70. ## math

Indicate the correct answer for the function. If (x)= x^3 - 3x^2 + 3x + 7, then f(x) is: a) Maximum b) Minimum c) Neither maximum or minimum d) not possible

71. ## math/ pre algebra

Lydia rode 243 miles in a three day bike trip. On the first day, Lydia rode 67 miles. On the second day, she rode 92 miles. How many miles per hour did she average on the third day if she rode for 7 hours?

72. ## math

Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were defective. Estimate how many telephones are defective each day.

73. ## Math 250

Locating a car from the 102nd floor observation deck of the empire state building, an observer spots his car at an angle of depression of 5 degrees. if the observation deck is 1250 feet high, how far is his car from the building?

74. ## ENGLISH Correcting #5,6,8 & 9

5)Both Ada and Phil are evaluating their thesis statement, topic sentences, and evidence. If Ada finds that her essay doesn't have a thesis statement identifying the topic of the essay, Ada will reread the essay and decide what the main point of the essay.

75. ## physics

Explain two different reasons why fibreglass is used to fill the space between the concrete block and the metal casing.

asked by Fernando Guo
76. ## English

Do you agree or disagree with the following statement children should begin stadying a foreign languages as soon as they start school.Why? Why not?

77. ## SCIENCE PLZ HELP

1. Compare the natural greenhouse effect with the human-induced process

78. ## Chemistry

Automotive airbags inflate when sodium azide, NaN3, rapidly decomposes to its constituent elements according to the chemical equation, 2 NaN3 -> 2 Na + 3 N2. How many grams of nitrogen are produced when 1000 milligrams of sodium azide decomposes?

79. ## saint joshef

Given a planar electromagnetic wave in vacuum whose B-field is denoted by Bx = 0, Bz = 0, B_y = 66.7 × ?10?^(-8) sin 4?p?10?^6 (z-3×?10?^8 t) Write an expression for the E-field. What are wavelength, speed and direction of motion of the disturbance?

80. ## science

A man throws over a cliff and hears it strike at the bottom in 8 second. The temperature is 25 C. what are the two times ; the time that the stone travels and the time that sound travels ? what is the height of the cliff in meters?

81. ## math

Write an equation of the line that passes through each pair of points (0,0) and (7,7)

82. ## maths

Helpp mee!!! I'm really stuck so I need help. Teresa has three times as much money as Rita. Between them they have €10. How much has Teresa?

83. ## SCIENCE PLZ HELP

2. What are the greenhouse gases? Which one is the biggest concern?

84. ## Physics

How does using the concept of resonance determine the speed of sound an in experiment? In other words, I'm wondering how the concept of resonance works

85. ## Physics

The asteroid EROS has a mass of 7.4x10+15kg. A 103kg astronaut stands on the surface, 33km from the centre of the asteroid. What weight does she experience ? Give your answer in Newtons. Take the Gravitational constnat, G, to be 6.67x10-11.

asked by Bill Nye
86. ## coding

three quadrant hemorrhoidectomy icd 9

87. ## english

what is quotation marks?

88. ## Social Studies

social studies

89. ## Math

The table below represents the velocity of a car as a function of time: Time (hour) x Velocity (miles/hours) y 0 50 1 52 2 54 3 56 Part A: What is the y-intercept of the function, and what does this tell you about the car? (4 points) Part B: Calculate the

90. ## math

A Company has introduced a new product whose annual demand will depend on price charged. The demand of the product is represented by the function q = 100,000 – 200p, (where p = price and q = quantity demanded annually). Studies indicate that total cost

asked by Haroon Gondal
91. ## math

A company determines that the marginal cost of producing x units of a particular commodity during a one-day operation is 16x – 1,591, where the production cost is in rupees. The selling price of a commodity is fixed at Rs.9 per unit and the fixed cost is

asked by zaib ali
92. ## math

The total cost C(x) of a firm is C(x) = 0.0005x^3 – 0.7x^2 – 30x + 3,000, where x is the output. The value of x; for which MVC = AVC is: (where VC denotes the variable cost, MVC denotes marginal variable cost and AVC denotes average variable cost

93. ## math

Maximum or minimum values of the function f(x) = (1 – x)^2 e^x is: i need solution (a) Minimum value at x = –1; maximum value x = 1 (b) Minimum value at x = 1; maximum value x = –2 (c) Minimum value at x = 1; maximum value x = –1 (d) None of these

94. ## Trigg

This one is throwing me off, I don't get how to do a identity equaling to -.3 Cos2x=-.3

95. ## math

The cost of producing x units of balloons is given by C(x) =140 + 0.125x + 0.0005x^2. If the revenue function is determined by R(x) = 3x, maximum profit is:

96. ## wordly wise

circle the letter or letters of each correct answer. which of the following can suffer from CONGESTION? A city streets B a theater lobby C a car D the passages in one's nose it can have more than one correct answer

97. ## Math

Part A: Max rented a motorbike at \$465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of \$625. Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x

98. ## Algebra 1 Honors

A taxi cab charges \$2.50 for the first mile and \$0.35 for each quarter mile after that. Johns taxi ride to he airport was 15.75 miles. What was his fare?

99. ## Physics

Alex is exploring a cave that has a slight incline and is iced over, forcing her to use ice cleats to explore it. After climbing 50 m into the cave, she finds what she is looking for and she takes out her ice pick and hammer to begin removing the stones.

3sin3x+2=4

102. ## science help PLS

What is the relationship between atmospheric pressure and the density of gas particles in an area of increasing pressure? As air pressure in an area increases, the density of the gas particles in that area decreases. As air pressure in an area increases,

103. ## Behavioral Stat. Help!

Conducting a post hoc test is similar to conducting multiple t-tests. As a result, it would seem natural to want to bypass the ANOVA and just use repeated t-tests. Explain why this approach is not necessarily a good idea and why an ANOVA followed by a post

104. ## Algebra

A square has an area of 49 square units. Find the sode length and perimeter of the square.

105. ## Algebra 1 Honors

The volume of a cylinder is 157 cubic inches. The base of the cylinder has a diameter of 5 inches. What is the height of the cylinder? Round to the nearest tenth of an inch.

106. ## Algebra

A square has an area of 49 square units. Find the side length and perimeter of the square.

107. ## english

Define verb tense. Write a sentence that has a simple present tense verb. Rewrite it, changing the verb to simple past tense, simple future tense, each of the perfect tenses, and each of the progressive tenses.

108. ## physics

How does the concept of resonance work?

109. ## ENGLISH

1. Joseph ate dessert before he ate dinner. --> Are the capitalized words a phrase or a clause? Answer: Clause. 2. She left early in the morning. --> Are the capitalized words a phrase or a clause? Answer: Phase. IS THIS CORRECT?

110. ## english

An imperative sentence is to a command as a declarative sentence is to a/an A. statement. B. wish. C. question. D. exclamation. my answer is D

111. ## English

What is an example of Aristophanes' satire of society (other than of women)?

112. ## Statiatics

Need help please. Determine whether each experiment is a binomial experiment or can be reduced to a binomial experiment. If so, describe a trial, determine the random variable, and state n, p and q. a) You roll a die 15 times and find the sum of all the

113. ## just checking(:

For the equation -4y = 8x, what is the constant of variation? a) -4 b) -2 c) 1 d) 2 Is it b) 2?

asked by Linear Functions
114. ## physics

A typical red blood cell has a mass of 3.0 10-16 kg. A blood sample placed in a centrifuge is subjected to a force of 4.6 10-11 N when the centrifuge is operated at 138 rev/s. What is the diameter of the centrifuge?

115. ## Statistics

One last one. A poll at Steve's high school was taken to see if students are in favor of spending class money to expand the junior-senior parking lot. Steve surveyed 6 random students from the population. 85% favored the expansion, while 15% opposed it. a)

116. ## math

Use the rated acute angle to state an equivalent expression sin 350

117. ## Chem

Using the same unbalanced chemical reaction, what is the theorectical yeild of CO2 if 16.0g of methane reacts with excess oxygen: CH4(g)+ O2 (g)→ CO2 (g)+ H2O(g)

118. ## Science

what are some scientific experiments ideas My teacher told me I could do a scientific experiment following the scientific method.

119. ## Algebra

If (c) were !@#\$%^&)=-4/k+7, what value of k would be excluded from the domain?

120. ## Geometry

A(-3,3) ---> A' is a glide reflection where the translation is (x,y) (x+5,y), and the line of reflection is y=1. What are the coordinates of A'? (2,-3) (-3,5) (5,1) (2,5) ---> is an arrow. I am not good on glide reflections and I'm very stuck on this one:(

121. ## Science

The town of Seaside needs to build a new power plant. The old coal burning plant produces too much pollution and is no longer safe. The mayor decides that he will do some research on alternative forms of energy like nuclear power plants and solar power

122. ## law

Which of the following is NOT an argument in support of plea bargaining?

123. ## Algebra

The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 3.7% per hour. How many hours does it take for the size of the sample to double? Note: This is a continuous

124. ## chemistry

How many grams of bismuth (III) chloride can be produced from 575 mL of chlorine gas at STP when reacting with excess bismuth metal?

125. ## Algebra

Mr. Wright has a class of 15 students. He can spend \$23 on each student to buy math supplies for the year. He first buys all of his students calculators, which costs a total of \$69.45. After buying the calculators, how much does he have left to spend on

126. ## English

1. This summer, what did Hajun do? He went camping with his friend John¡¯s family. 2. Where did they go? They went to Yosemite National Park. 3. What is Yosemite famous for? It is famous for its natural wonders. 4. On July 20, what did they do? They

127. ## Algebra

Year Number of Graduates (in millions) 2009 15.4 2010 15.9 2011 16.3 2012 16 2013 15.7 a. Code the years using t = 1 for 2009 and fit a quadratic function to the data with the regression program on your calculator. equation is

128. ## English

1. I am too tired to focus on the teaching. I am too tired to do the laundry. I am too tired to mop the floor. I am too tired to iron my uniform. I am too tired to clean the living room. I am too tired to arrange the things in the living room. 2. I am too

129. ## Language Arts HELP NEED !!!!!!!

1)In all together now, Barbara Jordan's main purpose is to a)persuade readers that a tolerant society is best created by working on a small scale. b)inform readers of the civil rights movement in the United States. c)praise the work of the leaders of the

130. ## 1Physics

One end of a spring is attached to the ceiling. The unstretched length of the spring is 10.0 cm. A 2.0 kg mass is hung from the other end of the spring. It is slowly lowered until it comes to rest. At this point the spring is 15 cm long. (a) What is the

131. ## Math

A box containing 5 red balls and 3 green balls weighs 43 g. When the box contains 3 red balls and 5 red balls it weighs 37g. When it contains one ball of each it weighs 19g. What is the mass of the box and of each ball.

asked by Zeisha Khan
132. ## Pre-Calculus HELP!

Explain how the transformations of the functions f(x)=15sin(x) and f(x)=sin(x)+15 differ. I see that f(x)=sin(x)+15 experiences a vertical shift, but I am not sure about the transformation that f(x)=15sin(x) experiences. Thank you for your help!

133. ## Math

The mean for Eric's class is \$148. The mean for Natalia's class is \$152. Natalia's sales total \$150. If Natalia moves to Eric's class, the mean for each class increases. Explain why.

134. ## math

in a class there are 28 boys and 14 girls.what fraction of the pupils are girls.

135. ## maths

a bag contains three labelled A,R,C and a box contains 4 cards 1,2,3,5. if cards are picked from the bag and from the box, find the probability of picking on A and a prime number

136. ## math

32 men can do a piece of work in 18 days. In how many days will 72 men do it? For 30 buffaloes, the fodder in a certain stock is sufficient for 8 days. For how many buffaloes the fodder is sufficient for 12 days? Pls help me

137. ## calc

Find the velocity, v(t), for an object moving along the x-axis if the acceleration, a(t), is a(t) = 2t + sin(t) and v(0) = 4

138. ## English

Is your house close to your work? ============ What is the part of speech of 'close' here? An adjective or an adverb?

139. ## Chemistry - Energy Phase Changes

Calculate the quantity of heat gained or lost in the following change: 0.44 mol of water evaporates at 100 degrees Celsius - So what I did was: 1 mol -> 6.01 kJ 0.44 mol -> x x = 2.64 kJ of energy gained But apparently this is incorrect? Could somebody

140. ## English

1. The house is close to the river. 2. The house is near the river. 3. the house is by the river. 4. The house is next to the river. ====== Are they all the same and grammatical? Do we have some more similar expressions?

141. ## Geometry

Find the length of a segment that has endpoints h(2, -3) and j(12, 7) 20 10 square root 2 4 square root 2 40 Please help? Thx

142. ## calc

A pitcher throws a baseball straight into the air with a velocity of 72 feet/sec. If acceleration due to gravity is -32 ft/sec2, how many seconds after it leaves the pitcher's hand will it take the ball to reach its highest point? Assume the position at

143. ## English

1. It was close to 1:15 a.m. 2. It was near 1:15 a.m. 3. It was about 1:15 a.m. 4. It was around 1:15 a.m. 5. It was roughly 1:15 a.m. 6. It was approximately 1:15 a.m. ================= Are they all grammatical and do they have the same meaning?

144. ## Heat and Heat Transfer

Two calorimeters each contain 1.4L of water and have a temperature of 26°C In the first calorimeter, you burn a sample of candle wax and determine that 108.2kJ of energy is released. In the second calorimeter, you have to burn 5.4g of candle wax to raise

145. ## physics

A scuba tank, when fully submerged, displaces 15.7 L of seawater. The tank itself has a mass of 13.9 kg and, when "full," contains 3.20 kg of air. The density of seawater is 1025 kg/m3. Assume that only its weight and the buoyant force act on the tank.

146. ## math

Bill swam 4 kilometers against the current in the same amount of time it took him to swim 12 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would Bill swim if there were no current?

147. ## calculus

integrate (e^t + e^-t)²

148. ## physics

Engine oil (η = 0.20 Pa⋅s) passes through a fine 2.60-mm-diameter tube that is 8.60 cm long. What pressure difference is needed to maintain a flow rate of 7.8 mL/min ? So what i did was (7.8Ee-3 /60) = π P (1.3e-3) ^4 /(8* 0.086*0.2) I get 1.99E5 but

149. ## ps 215

Given km insects angle jkl prove angle 2=angle 3