# Questions Asked onFebruary 24, 2010

1. ## chemistry

When the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level rises. Based on this information, what can be said about these two solutions? a.) The unknown solution had the lower

2. ## math

Bill, Ernie, Oscar, Sammy and Tony are the five basketball players on the starting team of the varsity squad. Each one is known by a different one of these five nicknames: Slats, Stretch, Tiny, Tower, and Tree. From the information given, determine the

3. ## physics

an elevator lifts a total mass of 1.1x10^3 kg, a distance of 40 m in 12.5 s. How much power does the elevator demonstrate? P=w/t w=mgd (1.1x10^3)(9.8)(40)=4.3x105J 4.3x10^5J/12.5=3.4x10^4 is this right or should 12.5 s be converted?

4. ## global

Why would so many women miners prefer to work in the mines without clothing? Why did the women need the heavy belts around their waists and chains between their legs?

5. ## Environmental Science

#52. In two or three well-developed paragraphs, list and describe the importance of the four steps in a simple environmental decision-making model. my answer: A decision-making model is a conceptual model that provides a systematic process for making

6. ## chemistry

The following errors occurred when the above experiment was carried out. How would each affect the calculated molecular mass of the solute (too high,too low, no effect)? Explain your answer. (a) The thermometer uses actually read 1.4C too high.

Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides secretarial

8. ## PHYSICS

The electron gun in a television tube uses a uniform electric field to accelerate electrons from rest to 5.0×107 m/s in a distance of 1.2 cm. What is the electric field strength?

9. ## physics

In a rescue, the 80.0 police officer is suspended by two cables 35 degrees and 48 degrees. Find the tension in both cables?

10. ## PHYSICS

Two small metal spheres with masses 2.0 g and 4.0 g are tied together by a 5.0 cm long massless string and are at rest on a frictionless surface. Each is charged to +2.0 ìC. (b) What is the tension in the string? (c) The string is cut. What is the speed

11. ## Honors Chemistry

Hi "Ka for HCN is 4.9 x 10^-10. What is the pH of a 0.068 M aqueous solution of sodium cyanide?" How do I do this question? Thank you very much

12. ## physics

a 17.0kg crate is to be pulled a distance of 20.0m requiring 1210J of work being done. If the job is done by attaching a rope and pulling with a force of 75.0 N, at what angle is the rope held? W=Fd(cos) 1210J=(170)(20m)(cos)

13. ## Physics

You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 4.50 m/s, directed downward, and it hits the ground 2.04 s after it is released. Find the height of the balcony.

14. ## PHYSICS

Humid air breaks down electrically when its molecules become ionized. this happend in an electric field |E|=3*10^6 N/C. In that field, calculate the magnitude of the electric force on an ion with a single positive charge. ..when they say a single positive

15. ## math

what did the baby porcupine say when it backed into a cactus?

What is the (name of the) molecular structure of AlCl3NH3 ?

17. ## calculus

A particle moves along a straight line with equation of motion s = f(t), where s is measured in meters and t in seconds. Find the velocity and speed when t = 9. f(t) = t ^-1 - t

18. ## english

how can you summarize this paragraph? A primary succession occurs when the change in species composition than in a previous uninhabited environment. This means no soil exists when the primary succession starts. An example of a primary succession is

19. ## geometry

EF is a median of trapezoid ABCD. If the length of EF is 14x, and the length of CD is 20x, what is the length of AB in terms of x?

20. ## Chemistry

What is the solubility of calcium iodide (in g per 100 cc of cold water)?

21. ## Physics

An unknown potential difference exists between the inner and outer surfaces of the membrane of a cell. The inner surface is negative relative to the outer surface. If 2.5 x 10-20 J of work is needed to eject a positive Calcium ion (Ca2+) from the interior

22. ## PHYSICS

(a) What is the electric potential a distance of 2.3 10-15 m away from a proton? Answer for this part is :626000 (b) What is the electric potential energy of a system that consists of two protons 2.3 10-15 m apart-as might occur inside a typical nucleus?

23. ## math

what is the centripetal force acting on each kilogram of an airplane that is turning at 200 m/s in a horizontal circle of radius 10,000m?

24. ## math

A jar is half full of vinegar and another jar twice its size is one quarter full of vinegar. Both jars are then filled with water. The contents are mixed in a third container. What part of the mixture in the third container is vinegar?

25. ## chemistry

Molecular Mass by Freezing point Depression (Preliminary Lab) The following errors occurred when the above experiment was carried out. How would each affect the calculated molecular mass of the solute (too high,too low, no effect)? Explain your answer. (a)

26. ## Physics

The brakes are applied to a car traveling on a dry, level highway. A typical value for the magnitude of the car's acceleration is 5.35 m/s2. If the car's initial speed is 29.1 m/s, how long does it take to stop and how far does it travel, starting from the

27. ## PHYSICS

Two point charges, 6.0 µC and -2.0 µC, are placed 6.0 cm apart on the x axis, such that the -2.0 µC charge is at x = 0 and the 6.0 µC charge is at x = 6.0 cm. (a) At what point(s) along the x axis is the electric field zero? (If there is no point where

28. ## Chemistry

"A mass of 45.0g of molten silver at its melting point is poured into 750mL of calorimeter water at 25.0C. The final temperature reached by both is 30.0C. If the specific heat capacity of silver is 0.235 kJ/kgC, calculate the molar heat of solidification

29. ## physics

A 6.0-kg box is raised a distance of 3.0m from rest by a vertical applied force of 80 N. Find (a) the work done on the box by the applied force, (b) the work done on the box by gravity, and (c) the final kinetic energy of the box.

30. ## Chemistry

Assuming complete dissociation of the solute, how many grams of KNO_3 must be added to 275mL of water to produce a solution that freezes at -14.5C? The freezing point for pure water is 0.0 C and K_f is equal to 1.86 C. Delta T= Kf*m*i i=2 m=3.90 solvent

31. ## PHYSICS

An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 1.00 × 104 V. (a) Find the final velocity after the original acceleration period. (b) It then passes between two horizontal plates 6.0 cm long and

32. ## AP Chemistry

Nitric acid is a strong acid. Does this mean that a) HNO3 dissociates completely to H+ (aq) and NO3 ^1- (aq) when it dissolves in water OR b) aqueous solutions of HNO3 contain equal concentrations of H+(aq) and OH- (aq) Thank you!

33. ## Volume and surface area

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

34. ## chemistry

Nitric acid is a strong acid. Does this mean that a) HNO3 dissociates completely to H+ (aq) and NO3 ^1- (aq) when it dissolves in water OR b) aqueous solutions of HNO3 contain equal concentrations of H+(aq) and OH- (aq) Thank you!

35. ## Physics

If a proton is released from rest in a uniform electric field does electric potential at its position increase, stay the same, or decrese?

36. ## Algebra

Flying with the wind, a small plane flew 360 miles in 2hours. Against the wind, the plane could fly only 300 miles in the same amount of time. Find the rate of the plane in calm air and the rate of the wind. I cant figure out how to solve this. Please help

37. ## Physics

Orin and Anita rush a 60kg man from the scene of an accidnet, carrying him on a uniform 3kg stretcher held by the ends. The stretcher is 2.6m long and the man's center of balance is 1m from Anita. How much force must they both exert to keep him horizontal?

38. ## Chemistry

If you are a mixture of ammonium chloride, barium sulphate and sodium chloride how would you produce a pure dry sample of each of those chemicals for the mixture.

39. ## Algebra

Flying with the wind, a small plane flew 360 miles in 2hours. Against the wind, the plane could fly only 300 miles in the same amount of time. Find the rate of the plane in calm air and the rate of the wind. I cant figure out how to solve this. Please help

40. ## math

A rectangular park measuring 35 yards by 24 yards is surrounded by a trail of uniform width. If the area of the park and the trail combined is 2420 square yards, what is the width of the path?

41. ## goemetry

can the following formula to find the sum of the interior angles of a polygon be used on a concave polygon? 180(n-2) where n= the number of sides

42. ## Chemistry

The reaction of 1,6-hexanediamine with hexanedioic acid chloride to form nylon 6-6 is a condensation polymerization. What is the small molecule that is split off in each step of the reaction?

A jar is half full with vinegar and another jar twice its size is one quarter full of vinegar. Both jars are then filled with water. The contents are mixed in a third container. What part of the mixture in the third container is vinegar?

44. ## Physics

An elevator is initially moving upward at a speed of 11.04 m/s. The elevator experiences a constant downward acceleration of magnitude 3.84 m/s2 for 3.06 s. (a) Find the magnitude and direction of the elevator's final velocity. (b)How far did it move

45. ## physics

imagine that you are a fish underwater. when you look up to the surface of the water you can see the sky and also the bottom of the pool. Try to explain this unsual view. A ray diagram might help

46. ## chemistry

When the glucose solution described in part A is connected to an unknown solution via a semipermeable membrane, the unknown solution level rises. Based on this information, what can be said about these two solutions? a.) The unknown solution had the lower

47. ## Environmental Science

#54. In two or three well-developed paragraphs, define and list two characteristics of each of the following: coastal wetlands, coral reefs, and oceans. I'm not sure what it means by defining and listing two characteristics. here's my answer: Coastal

48. ## Environmental Science

1. How has the size and location of big cities changes since the year 1900? 2. Describe the major problems in today's large cities and the cause of these problems. 3. What can be done to help solve these problems? 4. You may never live in a big city, but

49. ## Trigonometry

1) Find the coordinates of the point (-1,3) after the transformation T (to the -3,2 power) 2) What are the coordinates of point (-3,4) under D (to the 3rd power)? 3) Which of the following transformations could map the point (1,2) onto the point (3,6)? a)T

50. ## science mathmatics

Can you calculate the work needed to lift a 20.0-N book 2.0m

51. ## ALGEBRA

Suppose it takes 3 days for a space vehicle to travel from the Earth to the moon. About how long would it take the same vehicle traveling a the same speed to reach Neptune?

52. ## college

One mole of oxygen gas is at a pressure of 5.10 atm and a temperature of 32.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature?

53. ## Trigonometry

A translation maps (-6,2) onto (-4,-2). Find the image of (3,5) under the same translation.

54. ## can someone plz help me

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

55. ## Managerial Accounting

Instead of sales of 10,000 pair of skis, revised estimates show sales volume at 12,500 pair. At this new volume, additional equipment, at an annual rental of \$10,000 must be acquired to manufacture the bindings. This incremental cost would be the only

56. ## algebra

suppose you are starting an office-clening service. You have spent \$315 on equipment.To clean an office, you use \$4 worth of supplies.Yoou charge \$25 per office. How many offices must you clean to break even?

57. ## math

suppose you are starting an office-clening service. You have spent \$315 on equipment.To clean an office, you use \$4 worth of supplies.Yoou charge \$25 per office. How many offices must you clean to break even?

58. ## math again

You have a bag with 60 black jelly beans and 240 red ones. a) If you draw one jelly bean out of the bag, find the probability that it is black. -------60/300= 1/5 b) If you add 60 black jelly beans to the original bag and draw out a bean, what is the

59. ## Writing

please assist me with writing a good report. My grades are really low and i need this report to be great. I have to write on Black history Report on Black abolitionist,politicians and military.The letters I have is S-Z like al sharpton. please give me some

60. ## Physics

A 3.9-kilogram block sliding down a ramp from a height of 5.2 meters above the ground reaches the ground with a kinetic energy of 36 joules. The total work done by friction on the block as it slides down the ramp is approximately

61. ## Math

A coin bank contains only nickels,dimes, and quarters. the value of the 19 coins in the bank is \$2.00. There are twice as many nickels as dimes. Find the number of each type of coin in the bank. How do you solve this?

What geometric concept is modeled by the beam of a flashlight?

63. ## Physics

An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 1.00 × 104 V. (a) Find the final velocity after the original acceleration period. (b) It then passes between two horizontal plates 6.0 cm long and

64. ## biology

If catalase enzyme was placed in a test tube and heated to 100 degrees what results would you expect from a glowing splint test?

65. ## algebra

your high school golf team shot rounds of 68, 70, 72, 78, and 84. if par for the course was 71, how many shots was the team over par?

66. ## Physics

A baseball player hits a line drive. Just before the ball is struck, it is moving east at a speed of 43.2 m/s (97 mi/h). Just after contact with the bat, 9.30 10-4 s later, the ball is moving west at a speed of 52 m/s (116 mi/h). Find the ball's average

67. ## Social Studies

"Spreading light...without taking part in the affairs of the world...seeing as a trap...all expantion into Africa or the Orient-for a great nation to live this way, believe me, is...in less time than you may think, to sink from the first rank to the third

a tortoise and a hare are running in a race you are asked to prepare graps similar to those in your reading material to graph the progress of each animal during the race. as in the text, distance is the vertical scale of your graph and time is the

69. ## chemistry

How many grams of steam at 100 Celsius would be required to raise the temp. of 35.8 g solid benzene, from 5.5 Celsius to 45.0 Celsius???

70. ## PHYSICS

What is the magnitude of the electric field between two large parallel plates 2.0cm apart if a potential difference of 450 V is maintained between them?

71. ## physics

Barry Bee is flying through the air when he is struck by a truck. Which encounters more force, him or the truck?

72. ## geometry

a cylindrical oil drum is 6 feet long and has a radius of 2.5 feet? A-to the nearest cubic foot,what is the volume of this drum?

73. ## BIOLOGY

The 1918 Influenza Epidemic was the worse one on record. People infected early in the epidemic had a mild flu, while those later infected had a much more severe form of the disease. What is the explanation for this observation and what laboratory studies

74. ## math

Bill, Ernie, Oscar, Sammy and Tony are the five basketball players on the starting team of the varsity squad. Each one is known by a different one of these five nicknames: Slats, Stretch, Tiny, Tower, and Tree. From the information given, determine the

75. ## chemistry

In the reaction A to products, A is found to be 0.489 M at t=72.0 s and 0.468 M at t=82.2 s What is the average rate of the reaction during this time interval? Do I take the Ln (0.468/0.489) = -0.04395 / 10.2 = 4.3 * 10^3. yet the comp says its wrong. i

76. ## social studies

how did missions help establish a spanish presence in the southwest?

77. ## Anatomy & Physiology II

I've included answers as well. Thanks in advance. 1. Chemical substances secreted by cells into the extracellular fluids that regulate the metabolic function of other cells in the body are called: a. enzymes b. antibodies c. proteins d. hormones I chose D

78. ## jus wonderin

Why do you like Psychology?. What specific aspects of Psychology do you enjoy?...abnormal, cognitive, biological... What questions have you always seeked an answer for?.

79. ## 4th grade social studies

why is the southwest a fast-growing region today

80. ## science

How does oxygen production relate to the rate of photosynthesis?

81. ## algebra

You have a bag with 60 black jelly beans and 240 red ones. a) If you draw one jelly bean out of the bag, find the probability that it is black. -------60/300= 1/5 b) If you add 60 black jelly beans to the original bag and draw out a bean, what is the

Suppose the price of apples rises from \$3.50 a pound to \$4.00 and your consumption of apples drops from 30 pounds of apples a month to 20 pounds of apples. Calculate your price elasticity of demand of apples. What can you say about your price elasticity of

83. ## Physics

A car travels at an average speed of 83.2 km/h for 1.00 h and then at an average speed of 42.4 km/h during a second hour. What is the car's average speed during the 2.00 h interval? A car travels 0.98 km at an average speed of 83.2 km/h and then 0.99 km at

84. ## Physics

Orin and Anita rush a 60kg man from the scene of an accidnet, carrying him on a uniform 3kg stretcher held by the ends. The stretcher is 2.6m long and the man's center of balance is 1m from Anita. How much force must they both exert to keep him horizontal?

85. ## Physics

A 1.0 × 10−6 C test charge is 40.0cm from a 3.2 × 10−3 C charged sphere. How much work was required to move it there from a point 1.0 × 102 cm away from the sphere? what formula(s) should be used to calculate work...?

86. ## Math

Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers. 12xy + 20xz - 8xw

87. ## trigonometry

How to verify this identity: 1+ tan x (over) = secant x sine x + cos x

88. ## Biology

39. Proteins are manufactured from the "blueprints" found on DNA. After they are translated, they are moved through a system of internal membranes before being distributed throughout the rest of the cell. At some point in this process, they are modified to

89. ## algebra

I have been trying to solve this question, and I am not getting the right answer. I need to do Grouping 5x^3+5x^2-x+1

90. ## algebra

Melanie’s house is worth \$125,000, but she still owes \$78,422 on her mortgage. She has \$21,236 in a savings account, and \$9,477 in credit card debt. She owes \$6,131 to the credit union, and figures that her cars and other household items are worth a

91. ## math

Consider the parabola that passes through the points (2,6)(-1,12) and (0,6) Find the equation and the vertex

Factor f(x) = x^4 + x^3 – 8x^2 + 6x + 36 completely. Show all steps.

93. ## Ms. sue can u help me

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

94. ## calculus

This limit represents the derivative of some function f at some number a. Select an appropriate f and a. 1f(x) = x4, a = 4 f(x) = x1/4, a = 4 f(x) = x1/4, a = 256 f(x) = ãx, a = 256 f(x) = ãx, a = 16

95. ## literature

In the Odyssey, Part 2, what danger do Scylla and Charydbis pose to Odysseus and his crew?

96. ## physics 2

how much excess charge must be placed in a copper sphere so that its electric potential relative to infinity is 150kv radius 0.125 m b)what is the potential of the surface relative to infinity

97. ## Physics

At what distance from a carbon nucleus is the electric potential 2.1 V? Carbon atoms have 6 electrons in the atomic shell.

98. ## electric potential

Given a square of side length a = 6 cm. We place a charged particle at each corner, three of them carry +7 nC of charge and one carries the same amount of negative charge. What is the electric potential at the center of the square? Choose V = 0 V for a

99. ## Biology

39. Proteins are manufactured from the "blueprints" found on DNA. After they are translated, they are moved through a system of internal membranes before being distributed throughout the rest of the cell. At some point in this process, they are modified to

100. ## Math

Multiply using the rule for the product of the sum and difference of two terms. Assume any variable exponents represent whole numbers. (x - y + 11)(x - y - 11)

101. ## Math

Multiply using one of the rules for the square of a binomial. Assume any variable exponents represent whole numbers. (11x - y)2

102. ## com 220

Ceckpoint Introduction and conclusion. I am having a problem with writing an introduction for my research paper and a conclusion. My research paper is about education. But my professor said it has to be in a rough draft what does that mean. can somebody

103. ## ENGLISH

CAN SOMEONE HELP ME WITH WRITING AN EPIC POEM ABOUT A HERO? MY ASSIGNMENT IS DUE MAR. 1. IT HAS TO BE 4 PAGES LONG.

104. ## Calc

What is the integral of sin(x)*tan^2(x)? thanks

105. ## ALGEBRA

we have to readsearch in the plants i have the the plant uranus and i'm wondering if you can give me some websites

107. ## english

I need help with my annotated bibliography thesis for Maya Angelou!!!!!!!? It is for a research paper. I has to include a bibliography of Maya Angelou and 3 of her works. I just need help with the thesis for the annotated bibliography.

108. ## geometry

if a regular octagon has a perimeter of 264 centimeters, what is the measure of each interior angle and each side?

109. ## classroom instruction

Explain how a teacher can monitor student homework o Identify a time-efficient way to monitor independent student work (other than a student raising a hand to signal a need for help). o Describe two ways to refocus student attention when students are

110. ## physics

A 24-µF capacitor has an electric potential difference of 30 V across it. What is the charge on the capacitor?

111. ## english

Many people doesn't /didn't /don't like him. Which ones are correct?

112. ## HELP ME NOW!!!

could you please answer my question? I need to go read my book. my mom is getting upset! i an sorry, i don't mean to be snobby but i really need help!

113. ## physics

how to calcula distance of a object in free fall if only the time it reaches the ground is given

What is the most popular ERP (Enterprise Resource Planning) and CRM (Customer Relationship Management) packages on the market today?

115. ## Environmental Science

Describe the major problems in today's large cities and the cause of these problems?

116. ## biology

Will O2 passively diffuse and bind with hemoglobin that is less than 1mm from the surface of a blood sample? The percent of hemoglobin bound with O2 is different at high (10% CO2) and low (5% CO2) CO2 concentrations when the Po2 equals 0mmHg. Is that true?

117. ## hum 205

You are in charge of marketing and advertisement at your local art museum. Next month, the museum will be hosting an exhibition on the social role of the arts in early Chinese and Japanese civilizations. · Create a 2-page, informative newspaper

118. ## English

I'm doing a competition & this time it's about vincent van gogh. it has to have gogh in it. mainly his family tree. ex. Family tree -dizzy aunt....vertigogh -brother who ate lot of pruns.. gottagogh -brother who worked at the 7 11..stop and gogh -his

119. ## Math

Factor the greatest common factor from the polynomial. Assume any variable exponents represent whole numbers. 20x9 - 20x7 - 16x2

120. ## math

compare the units for primmeter,area,and volume how are they diffrent and how are they the same

121. ## biology

Why might it be worse to get an infection from someone in the hospital than from someone on a bus? is it because how bad the infection is, usually people that are in the hospital are in bad condition

122. ## Biology

Why is it a good idea to give a potted plant some plant food every week or so

123. ## Organic Chemistry

Suppose your assignment were to prepare the Glaser type product of a mixed reaction of a phenyl acetylene and propyne. How might the procedure in this experiment be modified so that the mixed product can be most efficiently isolated?

124. ## math

88 is 32% of what number

125. ## english

CAN SOMEBODY PLEASE HELP ME WRITE THE REST OF THIS ESSAY. I DON'T KNOW WHAT ELSE TO WRITE AND MY ESSAY IS DUE TOMMOROW. BY THE WAY THIS ESSAY IS NOT ABOUT ME ITS ABOUT SOMEBODY I KNOW. IM JUST TELLING IT IN FIRST PERSON. Ive made a fair deal of bad

126. ## MATH

what is the GCF 16 and 40

127. ## Calculus

If f(2)=3 and f'(2)=5, find an equation of a. The tangent line b. The normal line to the graph of y=f(x) at the point where x=2 So I plotted (2,3) and (2,5)...but that's not getting anywhere... Thanks

128. ## physics

How much kinetic energy is gained by an electron that is allowed to move freely through a potential difference of 2.5 × 104 V?

129. ## Math

Given the polynomial functions, find the product function and the specified value. Let f(x) = x + 2 and g(x) = x - 10. Find (fg)(x) and (fg)(-5).

130. ## math

you got 4 numbers 7,2,6,8 you can add, subtract, multiply, and divide.. how do those 4 numbers =24 or can they?

131. ## geometry

a cylinder water tower is three-fourths full of water.the tower is 24 feet tall and has a diameter of 28 feet.how much water is in the tower now?

132. ## math

If a movie ticket now averages \$6.75 and has been increasing an average of 15% per year compute the cost: in 8 years 8 years ago

133. ## Trigonometry

1) If P'(2,-6) is the image of point P after the dilation D(to the 2nd power), what are the coordinates of point P? 2) A transformation maps (x,y) onto (x+2, y-1). Find the coordinates of A', the image of point A(-2,6) under the same transformation.

134. ## geometry

a cylinder water tower is three-fourths full of water.the tower is 24 feet tall and has a diameter of 28 feet.how much water is in the tower now? CAN SOMEONE PLZ PLZ PLZ HELP ME

135. ## Biology

Why is it a good idea to dig compost into the soil.

136. ## English-Help

which one is better, your opinion counts. His hungry sister...lego my egogh How could I improve the wordings of this? His wife's sister...Dont gogh His wife’s sister...Time ta go -vincent's wife.. let me gogh I wanted to do ne with indigo, but I don't

137. ## English

Is there a difference between an ELL learner and a struggling reader? I say that to a certain degee there is a difference because an ELL students and a struggling reader. In a sense they both must understand the concept of another language. What is your

138. ## math-geometry

we have a test tomorrow and she said that a problem like this is going to be on there how do you do it???? Consider the parabola that passes through the points (2,6)(-1,12) and (0,6) Find the equation and the vertex

139. ## math

Money is deposited in an account for which the interest is compounded continuously. If the balance doubles in 6 years, what is the annual percentage rate? Can someone show me how to set this up? I have to use the equation: M(t)= Ce^(kt). Thanks.

140. ## Economics

How does the local, state, or national economy affect your business or place of work? Are there businessess that are relatively recession- or depression-proof? Why or why not? Are there businesses that may not prosper to the same extent as others during an

141. ## grammar

Hey! I need some help identifying the parts of speech quote from Macbeth. (For example I need help identifying the independent clauses, dependent clauses,subj, appositive, gerunds, etc.) The service and loyalty I owe, In doing it,pays itself.Your

142. ## Geometry

I would greatly appreciate any help I can get with this problem. I need to find the volume of a right triangular prism. The sides of the triangles measure 2cm and the length of the prism is 10cm. I found the surface area to be 64sq cm...is this correct?

143. ## chemistry

if you start with 5.5grams of magnesium chloride,how many grams of magnesium flouride will be produced?

144. ## re:math

i am having a minor difficulty i've been stuck for over an hour and don't know what to do i don't know is this right ? = "+" or "-" # = number y=3 (x-3)^2 + (y-4)^2 = 9 i substitute y (x-3)^2 + (3-4)^2 = 9 (x-3)^2 + 1 = 9 x^2 - 6x + 9 + 1 = 9 x^2 - 6x + 10

145. ## english

what is the adjective in the sentence She brought an apple for snack

146. ## Math

Kee had to buy 2 tires and patch the tires on his bicycle 3 times this year. How much did he spend repairing his bicycle if these were all the repairs he needed? Use the variablees x and y to write an expression for the cost of kee's repairs. then find the

147. ## math

jill has a recipe that calls for 12 cups of water.her measuring cup holds 1 pt. how many times does jill need to fill the measuring cup????? please help me

148. ## biology

for the hardy-weinberg equation, is p always for the dominant allele and q recessive? is the value of p always greater than q?

149. ## Math

A coin bank contains only nickels,dimes, and quarters. the value of the 19 coins in the bank is \$2.00. There are twice as many nickels as dimes. Find the number of each type of coin in the bank. How do I solve this?

150. ## social studies

How are Urban and Rural related

151. ## biology

15. Imagine you have a sibling that needs a kidney transplant. You offer to give your kidney. What reaction against the red blood cells in the donor kidney would occur if you had different blood groups? Even if you had the same blood groups why might you

152. ## Chemistry

How do I know which of these .1M solutions will have a pH less than 7? KF, NH4I, NaH2PO4, Fe(NO3)3 I am guessing all but KF is acidic...but if someone could confirm this and explain why that would be helpful

153. ## Chemistry

An aqueous solution contains two solutes, A and B. A is soluble in hexane, B is not. Hexane is liquid at room temperature and does not mix with water. The density of hexane at room temperature is 0.7 gdm-3. Describe, giving full practical details, how you

154. ## nutrition

What are some current nutritional issues, such as obesity or malnutrition, that can affect school student?

155. ## math

how many months in 7 & 1/2 years?

156. ## Chemistry

What is the repeating unit of nylon 6-6?

Small companies typically have difficulty competing against large multinationals when their governments take part in regional trade blocs. What could governments do to help their small companies compete after the formation of such blocs

158. ## environmental science

What can be done to help solve problems about major problems in large cities?

159. ## biology

its know that high plumage color in birds causes then to compete for nests better than dull birds. how does the hypothesis that males with high plumage color make offspring high plumage color support the first statement?

160. ## geometry

if the slope of a line is undefined, what is the point slope form? coordinate C (-2,-2) d (1,-2)

161. ## math

How many people do you need in a room in order to guarantee that there's a group of three people, each of whom has the same initials (first and last name only)? 676 677 1352 1353 I know that there are 26 letters of the alphabet. If I multiply 26 x 2 = 52

162. ## Economic

Interest rates for all types of credit are A. set by the state government B. set by the federal government C. set by commerical banks D. regulated by state and federal laws I think the answer is c

163. ## calculus

Consider the function below. g(x) = 2 - x^3 (a) Find g'(0). (b) Use it to find an equation of the tangent line to the curve y = 2 - x^3 at the point (0,2).

does anyone know a good site w/ a summary of the book; "Warriors Don't Cry" by Melba Pattillo Beals, and for the book; "Hidden Child of the Holocaust"; by Stacy Crezmeyer??? Please help asap!! Thanks!!

165. ## Speech

Does the sentence "Standing on a chair, I was just able to reach the high window." demonstrate correct use of modifiers?

166. ## Global History

How was the West impacted by imperialism?

167. ## algebra

solve for y: 1. 3x+2xy=10 2. 1/3x-3/4y=6

168. ## Mathematics

A solution is mixed with a 12% acid solution to form a 16% acid solution. How many liters of the 20% acid solution are used to make 10 liters of the 16% acid solution?

169. ## Math

how do you solve: 2A^2-7a-15

170. ## Chemistry

What type of extraction can be used to separate Hexane and a substance soluble in it?

171. ## Geometry

If the edge of a cube is doubled, the volume is?... a. half as much, b. doubled, c. quadrupled, d. none of these

173. ## literary

what is personification, polysyllabic humor,synaesthesia, and vernacular??

174. ## Geography

Please can you tell me whether the north italian plain or the south of italy would have a) hydro-electric power available b) few natural resources. I cannot find the answers to them. One answer goes on north and one on south. Please help.

175. ## Accounting

Given the data, would you have invested in Quality Department Store in 2006? Explain why or why not. Summarize your analysis of the financial data to support your reasoning. What recommendations would you make to improve the financial health of this

176. ## us history

Although Susan B. Anthony's actions were directly related to women's voting rights, how does her call for action later apply to other groups?

can a rectangle with sides 2 and 4 be similer to a triangle with sides 2 and 3? can you please explain this?

178. ## math

find the derivate of the function Y=(2x+3)^4(3x+1)^-2?

3x5-14/(-1)

180. ## MATH - 4th Grade

Can you help me with this... Use geometric terms to describe how a rectangular prism and a cube are different.

181. ## Science

I am having trouble finding anything to answer this question. Any help I would appreciate it! Describe Darwin's Theory of Natural Selection and indicate why species are able to adapt to changes in their enviroment. Be sure to include a discussion of how

182. ## Algebra

2(x+5)/(x+5)(x-2) = 3(x-2)/(x-2)(x+5) + 10/(x+5)(x-2) I know I have to get 2(x+5) = 3(x-2) but I don't know the intermediate steps. I tried canceling out to get 2/(x-2) = 3 + 10 / (x+5) and gross multiplying but that wouldn't make sense.

183. ## calculus II

I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a positive integer. What does it mean describe the graph of the function when N={whatever integer}? And what happens to the graph and to the value of the integral as N approaches infinity?

184. ## english

What are the philosophical positions evident in Oedipus Rex?

185. ## Math

Multiply the monomial and the polynomial. Assume any variable exponents represent whole numbers. -5x2y(-11x2y4 - 12xy3 - 4)

186. ## social studies

what was the nile river used for?

187. ## Biology

Why is it important to plant your vegetables in a different part of the garden each year.

188. ## environmental science

Describe the major problems in today's large cities

189. ## algebre II

Factor and solve: 4x^3-32=0 Please so work so I can finish on my own with an example problem. Thanks!

190. ## Social Studies

How does the U.S constitution provide for stability and continuity in the sentate?

191. ## calculus

Posted by Paul on Friday, February 19, 2010 at 3:57am. I have the function f(x)=e^x*sinNx on the interval [0,1] where N is a positive integer. What does it mean describe the graph of the function when N={whatever integer}? And what happens to the graph and

192. ## english

I need a web to search for antonyms

193. ## SCIENCE

1. what elements are soda cans made of? 2. what materials were used in (making) the soda can?

194. ## Honors Chemistry

Will a base + H2O ALWAYS from a basic solution? (not a neutral or acidic solution)

195. ## Economic

Interest rates for all types of credit are A. set by the state government B. set by the federal government C. set by commerical banks D. regulated by state and federal laws I think the answer is c

196. ## Science

Here is a question on my science worksheet, "if a projectile's fall matches Earth's 'BLANK', the projectile will not hit earth." i need help figuring out what would go in the blank!

197. ## Molecular biology

What is the importance of the tertiary structure of a tRNA? I know the structure, but I'm not sure what is the importance of it. Is it stabilization?

198. ## PHYSICS

A mobile postive point charge is located between two parallel charged plates of charge densitys +o (top plate) and -o (bottom plate) at a distance d from the negative plate.the distance doubles (becomes 2d)between the negative (bottom) plate and the mobile

199. ## math

what is the LCM for 16 and 24

200. ## math

what is the LCM 10 and 35

201. ## geography

I need to find a major industry in the north italian plain. I have typed it in a few search engines but I have yet to find an answer. Please help.

202. ## Calculus

I saw this question asked, but I didn't understand the answer format. My prof doesn't use dx and dy after he has differentated the problem. He just uses (for example) 8x+2+y+xy(prime) The question is this: 4x^2+2x+xy=12 and y(2)=-4 find y(prime)(2) by

203. ## biology

why aren’t there vaccines for every disease?

Use geometric terms to describe how a rectangular prism and a cube are different.

205. ## geometry

what is the perimeter of a triangle whose sides measure 7 3/4 inches,9 1/4 inches,and 10 1/2 inches,respectively?

206. ## environmental science

1. How has the size and location of big cities changes since the year 1900?

207. ## Math

what day and month was Lai-Sang Young born in?

208. ## MATHS

The sides of a square were reduced from 10 cm to 7.5 cm. What is the percentage decrease in the area of the square?

209. ## environmental science

How has the size and location of big cities changes since the year 1900

210. ## physics

convert 120 cm to meters

211. ## math

HOW DO i SET THIS UP AS A PROPORTION? 2,640 FT=X MILES

212. ## BIOLOGY-DNA FINGERPRINTING

Okay soo i'm confused on DNA fingerprinting, i know what it is and everything but why do they call it DNA fingerprinting when a fingerprint is only a mark left by the person?

213. ## Biology

Give two reasons why soil may become poor in mineral nutrients.

214. ## 6th grade world cultures

why would people in the same ethnic group live in different countries

215. ## surface area and volume

A rectangular prism has a volume of 48 cubic feet and surface area of 88 square feet. what are its dimensions? plz help me

216. ## writing

Hello. I could really use some help with my ESSAY. If anyone could tell me what they think of it and if anything needs corrected. Thanks Jess Well I guess the best place to start is the beginning. I was born in Kentucky, but only lived there for five

217. ## 4th grade social studies

Ms.Sue, obviously I couldn't find the answer.

218. ## MATH

f(x)= 3x+9/(x^2-100) If this function has a horizontal asymptote, give its y-value Find the x-intercept(s). Find the y-intercept

219. ## physics

A 9.1-µF and a 6.8-µF capacitor are each charged to 2.5 multiplied by 10-4 C. Which has the larger electric potential difference?

220. ## speech

Is the phrase Don't forget marketing plan in parallel form?

221. ## geometry

if the slope of a line is undefined, what is the point slope form? coordinate C (-2,-2) d (1,-2)

222. ## math

how do you solve factoring the binomial by grouping (x +3)y = (x+3)6=

223. ## pre calc

f(x)={8 x + 9}/(2 x + 7)(8 x + 6) -Find the x and y intercepts. -How would I go about finding the x and y intercepts in problems like this?

can a rectangle with sides 2 and 4 be similer to a triangle with sides 2 and 3? can you please explain this?

225. ## college

if an object sinks in a particular fluid,the weight density (weight/volume) of the object will less than, equal to, or greater than, the weight density of the fluid

hi, does anyone know any good websites on practicing reactions of hydrocarbons?

227. ## SCIENCE

1. what 2 elements are soda cans made of? 2. what materials were used in (making) the soda can?

228. ## English

Can you please help me check these sentences? Some of them don't make sense at all.I tried to check some of them though. 1) Brutus has a strong sense of republican liberty 2) Brutus fears what Caesar could (would/may) become if he were crowned. 3) He is

229. ## mittens vs gloves debate

why are mittens better than gloves? I have to do a debate.

230. ## operating system

Consider a user types a document with a speed of 100 words per minute. Assume that an average word consists of 5 letters and ends by a break which can be a space, new line, TAB, or punctuation, and an average sentence consists of 20 words. Assume that a

What are these words? _:pants::pencil:eraser. plz help me!

Sara purchased a 24 oz tube of toothpaste for \$6.95. What did she pay per ounce WORK THIS OUT THANKS

233. ## Physics

A rectangle with sides (a=1m) and (b=2m) has a set of discrete charges at the following locations: upper left: q =1nC lower left: q = 1nC lower right: -2q = -2nC Find the Coulomb force on a charge of q =1nC at the upper right hand side of the rectangle.

234. ## math

f(x)=square root of (5-x)/(x-8) -What is the domain?

235. ## accounting

received 125000 on account from a major customer. wht is the entries for this?

236. ## English-Ms. Sue OR Writeacher

How are these: which one is better, your opinion counts. His hungry sister...lego my egogh How could I improve the wordings of this? His wife's sister...Dont gogh His wife’s sister...Time ta go -vincent's wife.. let me gogh I wanted to do ne with indigo,

237. ## Social Studies

what are the requirements of a pilot

238. ## english

Winds stampeding the feilds under the window . Floundering back astride and blinding wet. Till day rose; then under an orange sky. ~ comment on the poets use of sentance structure i have no idea how to answer this could you please help me ?

239. ## calculus

f'(x) of f(x)= 4e^x/1-e^x

240. ## algebra 2

solve the equation: 1. 1/2a+2/3=(-1/3)a-3/4

241. ## math

what is the factor of 15 and 24

242. ## Science

I`m a 5th grade student and we are haviing a Sound Science test.I`m looking for defenitions to study from.such as vibrations, decibels, frequency and questions dealing with sound travel. is there a site you could recomend? thank you, cassidy

hi, does anyone know any good websites on practicing reactions of hydrocarbons?

244. ## Math

Factor any difference of two squares, or state that the polynomial is prime. Assume any variable exponents represent whole numbers. x2 - 100

245. ## Environmental Science

4. You may never live in a big city, but we must all find ways to lower our environmental impact. What can the average citizen do with a minimum of cost and inconvienence to become more environmentally friendly?

246. ## English

I forgot to include the following statements. 1) He decided to raise a tempest in order to make them been shipwrecked (??)make them be shipwrecked? 2) The island had been put under a spell by the witch Sykorax,who locked up some spirits in bodies (??) of

247. ## environmental science

You may never live in a big city, but we must all find ways to lower our environmental impact. What can the average citizen do with a minimum of cost and inconvienence to become more environmentally friendly?

248. ## Ms. sue can u help me

thx but wat is the volume Ms. Sue

249. ## marketing

identify three problems that a marketing communicator must solve when creating an advertisement.

The length of a rectangle is a multiple of 5in. The width is 4.8 in. The area is between 80in.2 and 100in.2 What is the length of the rectangle? I an really confused on this problem! Please help & explain. thanks

251. ## physics

How do i determine the volume displaced when given mass and volume of an object.

252. ## english

They plan/planned to leave for the woods at 2 o clock in the afternoon. which one is correct?

253. ## math

i am having a minor difficulty i've been stuck for over an hour and don't know what to do i don't know is this right ? = "+" or "-" # = number y=3 (x-3)^2 + (y-4)^2 = 9 i substitute y (x-3)^2 + (3-4)^2 = 9 (x-3)^2 + 1 = 9 x^2 - 6x + 9 + 1 = 9 x^2 - 6x + 10

(2)^-2 ?

255. ## cenntennial middle

what would have caused the us navy to develop the invisible ink describe in the last paragrah?

256. ## math

what is the prime factorization 300

257. ## western history

Identify, by number, the medieval individuals who were known by the following names: 1. Unraed. 2. Forkbeard. 3. Bloodaxe. 4. the Boneless. 5. Ironside.

hi, does anyone know any good websites on practicing reactions of hydrocarbons?

259. ## Finance - market varience

Find how many times the market variance is of the SD of a portfolio half in the riskfree security and half in the market. The market variance is .25 times (.5 x .5 = .25). Is my answer correct?

260. ## environmental science

what can be done to improve economic issue in cities

261. ## math

how long is a line

262. ## math2

what is a ray

10-___+9=59

264. ## Math pple

what prime factorization 25

265. ## math

different ways to come up with 100 - 25 x 4, 10 x 10, etc.

266. ## math

how can i show my work by long division by dividing8 from 100 show work.

267. ## math

what is 4/7 devidid by 1 1/7+5

thanks