# Questions Asked onSeptember 27, 2012

1. ## Calc 3

At what point on the paraboloid y = x2 + z2 is the tangent plane parallel to the plane 7x + 2y + 3z = 2? (If an answer does not exist, enter DNE.)

2. ## physics

what average force is needed to accelerate a 7.00-gram pellet from rest to 125m/s over distance of a .800m along the barrel of a rifle.

3. ## Physics

A gray kangaroo can bound across level ground with each jump carrying it 8.4m from the takeoff point. Typically the kangaroo leaves the ground at a 23 angle. 1. Provide knowns and unknown values. 2. What is the initial velocity or takeoff speed? 3. What is

4. ## Physics based Calculus

Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape. Bob is a pitcher, and knows that

5. ## math

-Find the number of distinguishable permutations of the given letters AAABBBCCC''. -If a permutation is chosen at random, what is the probability that it begins with at least 2 A's?

6. ## 7th grade math - Scientific Notation basics

1. The area of Greenland is 840,000 square miles. What is this number in scientific notation? 2. What is this number in standard form? 5.75 x 10^9 3. In a recent year the world production of wheat was about 5.2 x 10^8 metric tons. What is this number in

7. ## chemistry

Write the formulas of the compound NH4+ formed by specified cations with the following anions:OH-, NO3-, CO3-2,HSO4-, PO4-3 . Use the given order of anions

8. ## chemistry

A 27.00 mL sample of an unknown H3PO4 solution is titrated with a 0.110 M NaOH solution. The equivalence point is reached when 25.78 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction is:

9. ## Algebra2

A triangle has points A(1, 2), B(1, 6), and C(3, 6) and is reflected over the x-axis and then over the line y = x. A"B"C" are the coordinates of the reflected image. What is the A" coordinate?

10. ## chemistry

Write the formulas of the compound Al+3 formed by specified cations with the following anions:OH-, NO3-, CO3-2,HSO4-, PO4-3 . Use the given order of anions

11. ## Analytical

Calculate the pH of 7.2 × 10-8 M HCl. Report your answer to the hundredths place. Next, What fraction of the total H in this solution is from the HCl? Report your answer to the hundredths place.

12. ## Physics

A tennis ball with a velocity of 24.4 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 16 m/s. If the ball is in contact with the wall for 0.013 s, what is the average

I have to answer the following questions about C3H7Cl: Are there different constitutional isomers for this formula, are there different cis/trans isomer, and are there different conformers? I know that C3H7Cl can be drawn two ways: H-C-C-C-Cl With H's

14. ## math

explain how you would write the number that is 2 tens more than 53?

15. ## Chemistry

Calculate the density of a substance in pennyweights per peck that has a volume of 0.371 hogsheads and a mass of 41.6 kg. 1 pennyweight = 1.55 grams 1 hogshead = 238.5 liters 1 peck = 9.091 liters. Answer in units of pw/pk.

16. ## Math

It is greater than 43 and less than 52 if you add the digits the sum is 8 write the number word

17. ## math

a flagpole casts a shadow 3 meters long . a woman near the pole cast shadow 0.75 meters long. the woman is 1.5 meters tall. how tall is the flag pole?

asked by rizza domingo
18. ## physics

A cheerleader lifts his 62.2 kg partner straight up oﬀ the ground a distance of 0.89 m before releasing her. The acceleration of gravity is 9.8 m/s 2 . If he does this 19 times, how much work has he done? Answer in units of J

19. ## Science

if an aluminum cube has a mass of 20g and the length of each side was 2 cm, between what two liquids would it float?

20. ## math

Jasmine has 8 packs of candle wax to make scented candles. Each pack contains 14 ounces of wax. Jasmine uses 7ounces of wax to make one candle. How many candles can she make?

21. ## Pre-Calculus

Composition of Functions If f(x) = 2x+1 find A. f o f(x) f(f(x)) = f(2x+1) f(2x+1) = 2(2x+1) f(f(x)) = 4x +2 B. f o f o f o f(x) ^ I don't get how to solve this one C. f o f o f o f o f ...o f(x) n functions of f ^ I also don't get how to solve this one

22. ## Calc 3

Find parametric equations for the tangent line to the curve of intersection of the paraboloid z = x2 + y2 and the ellipsoid 6x2 + 5y2 + 7z2 = 39 at the point (−1, 1, 2)

23. ## science

A small hockey puck slides without friction over the icy hill and lands 6.20 m from the foot of the cliff with no air resistance.What is its initial speed v0 at the bottom of the hill?

24. ## physics

This question is typical on some driver’s license exams: A car moving at 40 km/h skids 12 m with locked brakes. How far will the car skid with locked brakes at 80 km/h? Answer in units of m

25. ## Chemistry

How to solve titration problem for HC2H3O2 + NaOH= NaC2H3O2 + H2O The M of NaOH= 0.427 The volume of NaOH= 17.30mL 10.00mL of acid The second titration calculation is: The M of NaOH= 0.427 The volume of NaOH=34.60mL 20.00mL of acid

26. ## Chemistry

Calculate the pH of 7.2 × 10-8 M HCl. Report your answer to the hundredths place. Next, What fraction of the total H in this solution is from the HCl? Report your answer to the hundredths place. I apologize for the re-post, but I felt the previous one was

27. ## CHEM HELP ASAP!

As a solid, Ag adopts a face-centered cubic unit cell. How many unit cells are present per cubic centimeter of Ag?

37. ## Chemistry

A 6.00 ft cylinder has a radius of 26 in. It contains 189 lb of helium at 25 celsius. Express the volume of the cylinder (V=ðr²h) in liters, the amount of helium in moles and the temperature in Kelvin.

38. ## Math/Trig

An airplane leaves an airport and flies due west 150 miles and then 170 miles in the direction 210°50'. Assuming the Earth is flat, how far is the plane from the airport at this time (to the nearest mile)

39. ## physics

You are planning to build a log cabin in northern Minnesota. You will pull the logs up a long, smooth hill to the building site by means of a rope attached to a winch. You need to buy a rope for this purpose, so you need to know how strong the rope must

40. ## physics

A large air-filled rubber ball is tethered to the bottom of a swimming pool. The tension in the tether is 100N. The mass of the rubber in the ball itself is 2kg while pwater=1000kgm(-3) and pair=1.2 kgm(-3). What is the volume of the ball?

41. ## chemistry

Write the formulas of the compound Pb+4 formed by specified cations with the following anions:OH-, NO3-, CO3-2,HSO4-, PO4-3 . Use the given order of anions

42. ## college algebra

An open box is made from a square piece of cardboard 20 inches on a side by cutting identical squares from the corners and turning up the sides.(a) Express the volume of the box, V , as a function of the length of the side of the square cut from each

43. ## math

maurice puts 130 trading cards in protector sheets. He fills 7 sheets and puts the remainiing 4 cards in an eighth sheet. Each of the filled sheets has the same number of cards. How many cards are in each filled sheet

44. ## Chemistry

Suppose the atmospheric pressure during the experiment was 751 mmHg. The temperature of the water was found to be 23.0 degrees celsius. What is the pressure of the oxygen gas, Po2 that is produced?

45. ## physics

A flock of ducks is trying to migrate south for the winter, but they keep being blown off course by a wind blowing from the west at 11{\rm m/s} . A wise elder duck finally realizes that the solution is to fly at an angle to the wind.If the ducks can fly at

46. ## marketing

Binomial probability distributions are used in business, science, engineering, and other fields. Suppose you work for a marketing agency and have to create a television ad for Brand A toothpaste. The toothpaste manufacturer claims that 40% of the

47. ## calculus

Sand falls from a conveyor belt at a rate of 20 m^3/min onto the top of a conical pile. The height of the pile is always 3/4 of the base diameter. Answer the following. a.) How fast is the height changing when the pile is 10 m high? Answer = m/min. b.) How

48. ## physic

A ball rolls off the edge of a balcony at 10 m/s. what is the speed after 1s in the air?

49. ## math

in the lab, tom has two solutions that contain alcohol and is mixing them with each other. he uses 300 millilters less of solution A than solution B. solution A is 10% alcohol and solution B is 13% alcohol. How many millilters of solution B does he use, if

50. ## College Chemistry

how would you prepare 175.0ml of .150 m agno3 solution starting with pure agno3

51. ## math

Ryan has nine 14-ounce bag of popcorn to replace and sell at the school fair. A small bag holds 3 ounces. How many small bags can he make?

52. ## College Physics

What minimum speed does a 95.9 g puck need to make it to the top of a 2.7-m-long, 15° frictionless ramp?

53. ## american history

Which of the following is true of the Spanish-American War? A: The black soldiers who fought had gained experience and distinction during the Indian Wars B: Racial tensions were suspended for the duration of the war C: About 1 in 10 American soldiers were

54. ## algebra

Specialty t-shirts are being sold online for $30 plus a one-time handling fee of$2.75. The total cost is a function of the number of t-shirts bought. What function rule models the cost of the t-shirts? Evaluate the function for 5 t-shirts.

55. ## Chemistry

Ethylene glycol has a specific gravity of 1.1088 at room temperature 25 degrees Celsius. What is the mass of 1.00L of ethylene glycol at this temperature?

56. ## Physics science

Dana and Gina are pushing on a box. Dana pushes with 250 N of force and Gina pushes with 100 N of force. A. What is the net force if tey both push the box in the same direction. B. what is the net force if they push in the opposite directions?

57. ## chemistry

In 1934, Edward A. Doisy of Washington Univeristy extracted 1361 kg og hog ovaries to isolate a few milligrams of a potent female hormone. Doisy burned 5.00 mg of this precious sample in oxygen and found that 14.54 mg of CO2 and 3.97 mg of H2O were

58. ## Finite Math

A coin is loaded, so that the probability of a head occuring on a single toss is 2/3. In six tosses of the coin, what is the probability of getting all heads or all tails?

59. ## Math

The formula s = the square root of 18d can be used to fnd the speed s of a car in miles per hour when the car needs d feet to come to a complete stop after slamming on the brakes. If it took a car 12 feet to come to a complete stop after slamming on the

60. ## Chemistry

This Chem problem is really difficult -Need help please! Magnesium Consists of three naturally occuring isotopes. The percent abundance of these isotopes is as follows: 24Mg(78.70%), 25Mg(10.13%) and 26Mg(11.7%). The average atomic mass of the three

asked by Mary Joy
61. ## pre-calc

A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the temperature is 53°F (a) If the temperature of the turkey is 150°F after half an hour, what is its temperature after 45 min? (Round

62. ## social studies

The people who are in the best position to save are: A. teenagers. B. young adults in their 20s. C. middle-aged. D. elderly I'm between C and D. Please help!

63. ## Physics

A cup of coffee is sitting on a table in an airplane that is flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.37. Suddenly, the plane accelerates, its altitude remaining constant.

64. ## physics

Ann is driving down a street at 58 km/h. Suddenly a child runs into the street. If it takes Ann 0.778 s to react and apply the brakes, how far will she have moved before she begins to slow down?

65. ## Chemistry

Which statement concerning the electrons surrounding the nucleus of an atom is NOT correct? a) When 2 electrons pair together, they have opposite spins. b) The number of the electrons in an isolated neural atom is equal to the atomic number c) The second

66. ## Physics

A skier with a mass of 66.6 kg starts from rest and skis down an icy (frictionless) slope that has a length of 58.4 m at an angle of 29.8° with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow

67. ## geometry

Find m angle NKL if m angle JKL = 2m angle JKN

68. ## Math

It is less than 300. The ones digit is 4 times the hundreds digit. The tens digit is 5 more than the hundreds digit. The sum of the digits is 17. What is the mystery number?

69. ## Physics

A man in an elevator is 79kg. The elevator itself is 860kg. As the elevator begins to move down, a scale the man is standing on reads 437N. How do I determine the acceleration of the elevator? (I tried dividing the force of the man by his mass, it was

70. ## word problems math

Laura wants to cut a board into three equal pieces. The board is 5-8 feet long. How long will each piece be?

71. ## accounting

YSL Marketing research is a small firm located in Seattle. On behalf of its clients, the firm conducts focus group meetings, telephone and mail opinion surveys, and evaluations of marketing strategies. The firm has three partners and six nonpartner

72. ## calculus

A 13 ft ladder is leaning against a house when its base begins to slide away. By the time the base is 3 ft from the house, the base is moving at the rate of 5 ft/sec. Answer the following: At what speed is the top of the ladder sliding down the wall at

73. ## Physics

A bank robber in a getaway car approaches an intersection at a speed of 45 mph. Just as he passes the intersection, he realizes that he needed to turn. So he steps on the brakes, comes to a complete stop, and then accelerates driving straight backward. He

74. ## physics

A 208-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 34.0° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.830, and the log has an

75. ## physics

You are part of a team to help design the atrium of a new building. Your boss, the manager of the project, wants to suspend a 16.0 kg sculpture high over the room by hanging it from the ceiling using thin, clear fishing line (string) so that it will be

76. ## Sociology

Discuss the conclusions of Margaret Mead concerning temperament, and explain how she arrived at her conclusions.

77. ## physics

QA: This question is typical on some driver’s license exams: A car moving at 40 km/h skids 12 m with locked brakes. How far will the car skid with locked brakes at 80 km/h? Answer in units of m QB:A cheerleader lifts his 62.2 kg partner straight up oﬀ

78. ## calculus

When a circular plate of metal is heated in an oven, its radius increases at a rate of 0.02 cm/min. At what rate is the plate's area increasing when the radius is 100 cm? Answer = _______ cm^2/min

79. ## information systems

Is it an invasion of privacy for a company to search the Web for information by and about a job applicant? Interviewers are trained not to ask an applicant for some kind of information (age, marital status, disabilities) to avoid charges of discrimination.

80. ## Math

A greyhound can run as fast as 39.35mph per hour without calculating,would about 12,14 ,or 16 be reasonable answer for the number of miles a greyhound could run at this rate in 0.4 hour. My answer is about 16 because 60 min.divided by 0.4 is about 15. Am I

81. ## Math (12th)

What is the common difference in the arithmetic sequence 30, 27, 24, 21, 18, ...

82. ## calculus

A golf ball of mass 0.05 kg is struck by a golf club of mass m kg with a speed of 50m/s will have an initial speed of v(m)=83m/(m+0.05) m/s. show that v'(m)>0 and interpret this result in context with the application. Compare v'(0.15) and v'(0.20) in

83. ## world civilization NEED HELP A.S.A.P

What solutions did Augustus provide for the political problems that had plagued the Roman Republic?

84. ## world civilization

How was the Roman Empire organized and why did it function smoothly?

85. ## school

Jessica needs to describe her vision for an important ad campaign to three of the new team members. What should Jessica do?

86. ## Chemistry

calculate the volume of a rectangular prism with a length of 5.6 , a width of 2.1 , and a height of 6.6 .

87. ## math

A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the temperature is 53°F (a) If the temperature of the turkey is 150°F after half an hour, what is its temperature after 45 min? (Round

asked by Help! VERY URGENT!
88. ## algebra

6x+5y=17 find the equation, in slope-intercept form, for the line which is parellel to this line and passes through the point (-10,3)

89. ## calculus

The length l of a rectangle is decrasing at a rate of 5 cm/sec while the width w is increasing at a rate of 2 cm/sec. When l = 15 cm and w = 7 cm, find the following rates of change: The rate of change of the area: Answer = cm^2/sec. The rate of change of

90. ## world history

Write two short editorials (2 paragraphs each)--the first as an editor of a pro-Israeli editorial about the Israeli-Palestinian Conflict, the second from the point of view of a pro-Palestinian editorial. I'm not quite sure what they are asking me to do

91. ## differential

dT/dt= k(T - Tm), t > 0 where k is a constant of proportionality, T and Tm are measured in degrees Fahrenheit, and time t is measured in hours. Because Diff wants to investigate the past using positive values of time, he decides to correspond t  0 with

92. ## Chemistry

The Ka of a monoprotic weak acid is 3.29 × 10-3. What is the percent ionization of a 0.176 M solution of this acid?

93. ## Math 8R - HELP!!!!!

Mr. Martanarie bought a new lamp and lamppost for his home. The pole was 6 5/8 ft tall and the lamp was 1 1/4 ft in height. How tall were the lamp and post together?

94. ## american history

The Niagara Movement, headed by ____, sought equal rights for blacks A: William Lloyd Garrison B: William E Walling C: Booker T Washington D: W.E.B Du Bois I'm torn between C and D. The book I'm studying from and the websites I've looked at aren't very

95. ## woodlake hills/ science

Jose put 40 mL of water into a graduated cylinder. After addinga toy car, the water level in the cylinder rose to 65mL. What isthe volume of the toy?

96. ## calculus

The voltage V (volts), current I (amperes), and resistence R (ohms) of an electric circuit are related by the equation V=IR. Suppose that V is increasing at a rate of 3 volt/sec while I is decreasing at a rate of 1/8 amp/sec. Let t denote time in seconds.

97. ## Chemistry

I have to answer the following questions about C3H7Cl: Are there different constitutional isomers for this formula, are there different cis/trans isomer, and are there different conformers? I know that C3H7Cl can be drawn two ways: H-C-C-C-Cl With H's

98. ## science

A bullet of mass 50g is fired from a gun of mass 6kg with a velocity of 400m/s. calculate the recoil velocity of the gun?

99. ## Math

a poll found that a particular group of people read and average or 18.3 books per year. The pollsters are 99% confident that the result from this poll is off by fewer than 3.79 books from the actual average x. express this situation as an inequality

100. ## calculus

Two commercial airplanes are flying at an altitude of 40,000 ft along straight-line courses that intersect at right angles. Plane A is approaching the intersection point at a speed of 429 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000

101. ## social studies

what kind of government did the minoans have ?

102. ## math

What 3 digit number can be written as 45 tens

103. ## Physics

Approximately 4x10^9 kg of matter is converted into energy in the sun per second. Express the power output of the sun in watts.

How many yards must be gained after a loss of 3 yards to have a total gain of 10 yards?

asked by Maryam (:
105. ## fortis

north island federal credit union pay 4% annual interest, compounded daily on time savings deposits. find the value after 1 year of 750 deposited in this account

106. ## Business Finance

Need step by step explaination for soulution: A firm has net income of #2,610 and tax rate of 33%. The revenue is $20,400, cost are 78 percent of sales, and interest expene is$100. what is th edepreciation expense for the years?

107. ## math

container A has twice the capacity of container B. Container A is full of sand and container B is empty. Suppose 1/8 of the sand in container A is poured into Container B. What fractional part of container B will contain sand?

108. ## Shelving units

The average thikness of a medical chart is 1/4 inch. If a practice has 1200 patients with each chart 1/4 inch thick, how many shelving units will it take if a unit can hold 368 inches.

109. ## physics

Zak, helping his mother rearrange the furniture in their living room, moves a 49.9 kg sofa 7.1 m with a constant force of 37 N. What is the work done by Zak on the sofa? Neglect friction. Answer in units of J

110. ## algebra

The numerator of a fraction is 7 less than the denominator if three is added to the numerator and 9 is subtracted from the denominator the new fraction is equal to 3/2. Find the original fraction.

111. ## Calc

a box with an open top is to be made from a rectangular piece of tin by cutting equal squares from the corners and turning up the sides. The piece of tin measures 1mx2m. Find the size of the squares that yields a maximum capacity for the box. So far i have

112. ## social studies

Four-year-old Sergei can tell his Poppa how to wash the clothes. Yesterday, Sergei told Poppa, "First, get the dirty clothes from the basket. Next, put them in the washing machine. Now, add some soapy stuff. Close the washer lid and press the button. When

113. ## Physics

A 22.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 78.0 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.

114. ## math

Round 6918 to the nearest hundred

115. ## English

What are the nouns and verbs in the sentence. Life is full of choices, so I must learn to make good ones.

116. ## chemistry

Record measured absorbance for each tube in following table. Complete the table by calculating the [ Fe(SCN2+)]eq and [Fe3+]initial and [HSCN]initial Data: Volume of 2.00 x 10-3 M Fe(NO3)3 solution, mL 1)5.00, 2) 5.00, 3) 5.00 4) 5.00 5) 5.00 Volume of

asked by Brittany S
117. ## math

A major corporation is building a 4325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have estimated that Glen Clove's population (in thousands) t yr from now

118. ## psychology

Bronfenbrenner's bioecological theory is often explained by using a diagram that looks like a target with the individual in the bull's eye position. What is his point? A. The individual is a constant target for negative influences of a hostile environment.

119. ## physics

Calculate the velocity needed for an object starting at the Earth's surface to just barely reach a satellite in a geosynchronous orbit. Ignore air drag and assume the object has a speed of zero when it reaches the satellite. (The orbital radius of a

120. ## chemistry

why do gases mix in any proportion?

121. ## ALGEBRA

a pharmacist discovered she had 7/4 prescriptions filled for antibiotics and tranquiizers.66 prescriptions were filled.. how many were tranquilizers?

122. ## Chemistry

Which element is located in the family represented by ns²np³? A) Ti B) Se C) AS D) I E) Sb

123. ## History

The areas between the Tropics of Capricorn and Cancer are (A. High or B. Low) latitudes.

124. ## Math

It is less than 300. The ones digit is 4 times the hundreds digit. The tens digit is 5 more than the hundreds digit. The sum of the digits is 17. What is the mystery number?

125. ## social studies

The esteemed Dr. Bookworm has just completed a study in which he found a +1.0 correlation between the number of cups of coffee his students drank right before class and the scores they earned on his final exam. This correlation means that: A. the less

126. ## chemistry

100 ml of a raw water sample on titration with 1/50N h2so4 required 12ml of the acid to phenolpthalein end-point and 15.5 ml of the acid to methyl orange end point. determine the type and extent of alkalinity present in the water sample. please explain me

127. ## math

how do i make a venn diagram for nurses and skydivers

128. ## physics

A glacier moves with a speed of 45 nm/s. How many years would it take for the glacier to move 0.87 km? Assume there are 365 days in a year. Answer in units of y

129. ## chemistry

115g of copper that loses 2.48kJ

130. ## physics

A car traveling at +7.2 m/s accelerates at the rate of 0.65 m/s 2 for an interval of 2.4 s. Find vf . Answer in units of m/s

131. ## social studies

An Li reached puberty at age 12, and John Smith retired at age 65. An Li's and John Smith's experiences are examples of: A. normative events. B. non-normative influences. C. critical periods. D. risk factors. I chose A. but now reading a little more into

132. ## Math

A major corporation is building a 4325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have estimated that Glen Clove's population (in thousands) t yr from now

133. ## Spanish Beg. 1 - HW Check/HELP!

4. Que tiempo hace? English - What's the weather 5. Cual es la estacion English - ?????? 6. Cual el la fecha English - ????? Please help and is the first one if correct????

134. ## chem

C8H8O3 + NH3/H20 = ?? what would happen if ammonia solution was used instead of hydroxide?

135. ## math

i am a 3 digit number,my ones digit is twice my hundreds digit,when rounded to the nearest hundred i round to 500,my tens digit is less than 6,what number am i?

136. ## social studies

How many years can you expect to spend in retirement? A. 6 to 10 years B. 10 to 12 years C. 12 to 16 years D. from 16 to 25 years Is the answer C?

137. ## Algebra

Do you always use the property of distribution when multiplying monomials and polynomials? Explain why or why not. In what situations would distribution become important?

138. ## social studies

Four-year-old Sergei can tell his Poppa how to wash the clothes. Yesterday, Sergei told Poppa, "First, get the dirty clothes from the basket. Next, put them in the washing machine. Now, add some soapy stuff. Close the washer lid and press the button. When

139. ## social studies

Mary Lou must complete a research project to get her associate degree. She has just one year left to finish her degree and must spend as little time and money as possible on her research. She plans to compare stress levels of 8th graders to stress levels

140. ## psychology

Dr. Doolittle was often late for his daily psychology class, and his eager students decided they'd had enough. One day, the students put their waiting time and their knowledge of psychology to use by coming up with a plan to encourage the good doctor to be

141. ## English

How do you determine criteria for evaluating something? What specific areas should you consider? What is the importance of establishing clear criteria?

142. ## 4 gr

forty people are lined up to ride the ski lift to the top of the mountain. Each chair on the holds 3 people. How many chairs will it take to get everyone up the mountain?

143. ## physics

a plane needs to fly at 40 degrees n of e when flying through a wind that blows 80 mph @ 70 degrees S of E. If the plane goes 320 mph in still air in what direction should the plane aim?

144. ## Math (12th)

What are the next three terms of the geometric sequence 32, -16, 8, …?

145. ## Physics

a colloid is solid particles dispersed in water a suspension where the particles settle out a gas I say gas, am I right?

146. ## Pre-algebra

How do you write an equation to determine possible values for a perimeter =52

147. ## social studies

Explain how the Protestant Reformation led to war between England and France in the 16th century?

148. ## physical scinsce

A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by

149. ## Math

Speedy Printing charges $23 for 200 deluxe business cards and$35 for 500 deluxe business cards. Give that the cost is a linear function of the number of cards printed, find a formula for that function and find the cost of 700 business cards.

150. ## health

what would be a way to respond to repetitive behaviour at age care

151. ## calculus

Find the dimensions of the largest cylinder that can be cut from a solid sphere of radius a.

152. ## education

During the middle of the twentieth century, North American psychology was dominated by A. evolutionary theory. C. neuroscience. B. cognitive development. D. behaviorism. 8. What is a major limitation of the psychophysiological method? A. Investigators

153. ## QNT351

use a 95% confidence interval to estimate the difference between the population means. Interpret the confidence interval. random sample 390 x1 5258 s1 152 x2 5220 s2 192

5x6=5x4+5xb

155. ## science

Why might a seed that falls on the ground in November wait until next April to germinate?

The average management fee for all mutual funds is: A. less than 0.25%. B. 0.25% to 0.50%. C. 0.50 to 1.25%. D. 1.25 to 2.50%. The answer I found is C, but I don't know if it is right.

157. ## math

Jsmine has 8 packs of candle wax to make scented candles. Each pack contains 14 ounces of wax.Jasmine uses 7 ounces of wax to make one candle. How many candles can she make?

158. ## american history

Following the Spanish-American War, and especially in regard to American occupation of the Philippines, most anti-imperialists argued that____

159. ## Phsyics

A woman stands on a scale in a moving elevator. Her mass is 63.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force

160. ## Phsyics

A woman stands on a scale in a moving elevator. Her mass is 63.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force

161. ## Math

Explain how you would write the number that is 2 tens more than 53.

162. ## Pre-Calculus

Composition of Functions f o g(x)=f(g(x)) --> I know that this is eqivalent to f(g(x)) Given f(x) = 2x+1, and g(X) = 3x+1 find:f o g(x)=f(g(x)) This is what I did, but I don't think Ive solved it correctly f(g(x)) = f(x-3) f(x-3) = 1(x-3)-3x+2 =x-3-3x+2

163. ## Pre cal

Three digits are randomly selected without replacement for one 1, two 9's and one 6. What is the possibility that the three digit number is a multiple of 3?

164. ## Art

What was Filippo Brunelleschi's style that he used? Is it.. Italian Renaissance? Thank you.

165. ## Spanish

in spanish, what do you put at the end of a name to show affection?

166. ## Health Care Attorney

What type of education and certification do you need to be a health care attorney? I am trying to do a research on a career that I would like to be and I could really use the help. Thanks!!!

167. ## Senior Microeconomics

I need some help with my econ homework. Can someone tell me if I am right on these? 1. When graphing cross-sectional data, one should ________. A. place the various years on the X-axis B.always be drawn using a line chart C. investigate variables in a

168. ## math

A box of chalk and 2 staplers cost $10. Three boxes of chalk and 2 staplers cost$18.Find the cost of 1 box of chalk and 1 stapler.

169. ## college physics

An 7.81g bullet is fired into a 220g block that is initially at rest at the edge of a table of h = 1.15 m height.The bullet remains in the block, and after the impact the block lands d = 2.13 m from the bottom of the table. Determine the initial speed of

170. ## american history

Theodore Roosevelt's first major trust-busting victory resulted from a suit brought against____

171. ## chemistry

How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?

172. ## Biology

1. How is both the external and internal stimuli involved in doing this: You are hungry so you reach for an apple in a fruit bowl. 2. Why is a hypothesis important to controlled experiments? Is it becasue you are trying to explain the effect that it would

173. ## physics

Find the electric field strength |E| at point P right above the edge of a metal ring. The ring has a linear charge density ë. Radius of the metal ring is R, the distance from the edge of the metal ring to Point P is D. thank you for helping.

174. ## AP Physics

If a ball rolls off a 4m high table at 7 m/s, how far horizontally from the bottom edge of the table will it fall?

175. ## algebra

three fourths of a number is 3/16 find the number in lowest terms...

176. ## newcastle

calculate number of atoms of each element CaS04

177. ## public speaking

according to aristotle, ethos refers to: A. emotions B. logic C. ethics D. none of the above

178. ## 7th grade math help - quick, please.

Write each number in scientific notation. 1. 4,800 2. 17, 200 3. 180,000 4. 343, 502

179. ## Physics

Luke stands on a scale in an elevator which has a constant acceleration upward. The scale reads 0.964 kN. When Luke picks up a box of mass 18.2 kg, the scale reads 1.202 kN. (The acceleration remains the same.) Calculate the acceleration of the elevator

180. ## chemistry

How many grams of HCL must be added to make 1 liter of a 2.0 M HCl solution?

181. ## Practice Sentences for French

Can someone give me practice sentences for direct and indirect objects? I want to see if I am able to do them. Also can you give me some sentences to put in the passe compose? thanks!

182. ## Physics Vectors

two vectors A and B have magnitude such that A>B. We do not know the directions of the vectors. however we can say that the magnitude of the sum A+B must be between? a) B and 2A b)A and A+B c) A-B and A+B d) A-B and A e) B and A+B

183. ## phycology

Life span developmental studies are based on the idea that: A. development occurs early in life, but not in late adulthood. B. there is almost no continuity over the lifespan, so an individual's history has little effect on development. C. sociohistorical

184. ## physics

Find the electric field E at point P right above the edge of a metal ring. The ring has a linear charge density ë. Radius of the metal ring is R, the distance from the edge of the metal ring to Point P is D. thank you for helping.

185. ## math 2 trigonometry

solve for oblique triangle given of two side,,, it is desired to find the distance betwen two points A and B lying on opposite banks of river A line segment AC of lenght 240ft.is laid off and the measure of angle B A C and A C B are found to be 62degre

186. ## math

If R1 and R2 in series give a total resistance of 12,ohms,calculate R1 such that their combined resistance in parallel is a quarter of R1

187. ## economics

1. (1 point) Consider two individuals considering how many iced coffee drinks to buy during the coming week. Person A is willing to pay a maximum of €10 for the first drink, €8 for the second, €5 for the third, and €1 for the fourth. Person B would

188. ## French

is LES plural?

189. ## Calculus AP

areas between the curves x=y^2-2, x=y, y=3. int[a,b](f(y)-g(y)) dy i know how to graph. but im have problem with integral.

190. ## science

How do you tell if intrusion is young or old

191. ## 6th grade Math

I got a problem wrong and I don't know why. Here it is: A highway construction warning sign blinks on and off. In all, the sign is on for 0.88 of each minute. For how many seconds is the sign on in 5 minutes? I multiplied 0.88 x 5 and got 4.40 but it was

192. ## chemistry

Record measured absorbance for each tube in following table. Complete the table by calculating the [ Fe(SCN2+)]eq and [Fe3+]initial and [HSCN]initial Data: Volume of 2.00 x 10-3 M Fe(NO3)3 solution, mL 1)5.00, 2) 5.00, 3) 5.00 4) 5.00 5) 5.00 Volume of

asked by Brittany S
193. ## Chemistry

would adding more CaCl2 to Na2CO3 produce more chalk

194. ## ms.sue(social studies)

Ms.Sue about the question of the the Protestant Reformation is it that England was christian and France wasn't or something else (please help)

195. ## Calculus 2

Calculus. Mary designed a new viewing window consisting of a rectangle and a semi circle for a fresh water aquarium. The window is as follows and the top is located 10 feet below the water's surface. How much force is on the window?

196. ## algebra

Can someone help with the equation for this?? Jon has a handful of pizzas. Someone takes 1/2 of them plus 1/2 of one pizza. Someone else comes and takes 1/2 of what's left plus 1/2 a pizza. A third person takes 1/2 of what's left plus 1/2 pizza. All pizzas

197. ## social studies

The right to __________ is not one of the ethical guidelines for research specified by the APA. A. financial compensation B. informed consent C. privacy and confidentiality D. avoidance of deception I cannot find the answer to this question.

198. ## phycology

Because Lucy is large for her age, she may not have many friends. This is an example of the interaction between which two types of development? A. Physical and psychosocial B. Physical and cognitive C. Cognitive and psychosocial D. Psychosocial and

199. ## Math

find a polynomial of least degree(having real coefficients) with zeros: 5, -2, 2i

200. ## Human Biology

Tendon sheaths are used to?

201. ## Science

What is a tool to separate a liquid from a mixture?

202. ## business law

How do the various interests in land and real estate differ? Where did this system originate?

203. ## phycology

Abstract thinking and scientific reasoning generally do not begin to develop until: A. middle adulthood. B. young adulthood. C. adolescence. D. middle childhood. My answer is D.

A football team runs 11 plays. There are 3 plays that result in a loss of 2 yards each and 8 plays that result in a gain of 4 yards each. To find the total yards gained, Art evaluates the expression 3(-2)+ 8(4). Bella first finds the total yards lost, 6,

asked by Maryam (:
205. ## woodlake hills/ science

The car jose is examing has a mass of 25 grams. What is the destiny of the car?

206. ## finding sub-steps

two weeks john's corn plants measured 5in. tall.Now they are 2ft. 3in . tall. What percent of increase?

207. ## math

how you would write the number that is 2 ten more than 53

208. ## ENG. PHYS

A constant force Fx = 5.8 N is in the +x direction. (Use the following as necessary: x, and x0. Do not include units in your responses.) (a) Find the potential-energy function U(x) associated with this force if U(x0) = 0. (b) Find a function U(x) such that

209. ## Biology

some proteins (such as HBB) can vary quite a bit from species to species. others (ex., tubulin) vary little from species to species? Why?

210. ## Science

If a mineral is 10g, how much oxygen is in the mineral.

211. ## american history

Was it Ivy Lee or Henry Ford that pioneered the field of corporate public relations? Ive read that Ivy is considered one of the founding fathers of the public relations but then I also read that Henry was the first major industrialist to use the public

212. ## math

Faye is making 13 bows to sell at the annual craft fair. She has 36 feet of ribbon to make her bows. If each bow requires 2 1/4 feet of ribbon will not be used

213. ## physics

What is your average velocity if you drive a distance of 252.5 km at a speed of 41 km/h, then the same distance at a speed of 60 km/h? Answer in units of km/h

214. ## math

is it true that you only have to check your solution in a rational equation if the solution is 0?

215. ## Math - LCD

What is the LCD for x^2,x, and x?

216. ## math

What are the smaller arrays for 15x7

217. ## Calculus 2

Calculus 2. Tom and Mike have a bet as to who will do the most work today. Mike has to compress a coil 200 feet. It takes Mike 250 lbs to compress the coil 10 feet. Tom needs to pump water through the top of a cylindrical tank sitting on the ground. The

218. ## psychology

In order to study the schools of children from poor families, Jonathan Kozol moved to several different U.S. cities and taught in their poorest schools. After doing this for a few years, he wrote a book about his findings. Kozol's work is an example of

219. ## writing

what is the prepositional phrase in the following sentence, What is the price of the blue 2006 Honda Civic in the last row of cars on the lot?

220. ## chemistry

How much heat is necessary to raise the temperature of a 15.0g metal from 15 degrees celsius to 25.0 degrees celsius?

221. ## Calculus derivative

How do you do the derivative of a^x, for example, (3/4)^x Thank you for helping!

222. ## Health

what will be an example of a trigger that can be found in the workplace when caring for a dementia clients in residential care

223. ## statistics/calculus

e^(10)-e^(10-x)-x/(e^(10)-11)=0.25 and e^(10)-e^(10-x)-x/(e^(10)-11)=0.75 -Solve both for x. -Can you solve both of these for x without a Ti-89 calculator? If so how? -The reason I want to calculate this is to find upper and lower quartiles of a deformity

238. ## phycology

Individual differences originate as a result of three basic developmental influences. These influences can best be summed up as: A. heredity, genetics, and environment. B. heredity, environment, and maturation. C. family, friends, and ethnicity. D.

239. ## boca high

3(k-2)=5×k+2×k-18, k=?

240. ## Math(pre-calc)

what are all the real zeros for 1x^5+2x^4+4x^3+19x^2+9x-5?

241. ## chemistry

calculate the vapor pressureof a solution of 20.0g sucrose (C12H12O6) in 80.0g water at 25 degrees celsius (vapor pressure, P, of pure water at 25C is 24torr)

242. ## AP World History

What was the status of women during the Gupta Empire? Describe India's Political nature prior to 400 BCE.

243. ## 7th grade math - scientific notation help

12. 0.00581 13. 0.00105 14. 0.0000078 15. 0.000027 16. 0.000000132 17. 0.000000009

244. ## geometry

angle JKN = 56 degree

245. ## Math

Can you please give me an example of a function notation? Thanks.

246. ## social studies

list five conditions that you would place on a parolee as a crime prevention tool.

247. ## Computers

What are calculations entered into a spreadsheet called? Formulas? Or Values? I'm thinking its formulas but Values talks about calculations on a spreadsheet too.

248. ## PE

any common activities between PE and science

249. ## word problems

5-8 feet of board divide in to three piece

250. ## science

all cells have smaller parts to keep the cell

251. ## Math

Sue drives 36 miles to the fair. Every 4 miles, she sees a sign to the fair. . How many signs will she see on her trip in all?

252. ## French

Give me a somewhat simple sentence to show that I know the direct/indirect!

253. ## Language Arts

Would the phrase "sooner than" be a compound preposition? Thanks...

254. ## English

what kind of clause is this? She left the door open(so that her kitten could come inside) whenever it was ready.

255. ## Algebra

Substitute the numbers in x and solve. 1) 4/5^x -2,-1,0,1,2 2) 2^x -2,-1,0,1,2

256. ## math

not a Q but wanted to say tks for help last nite. I'm 9 & live w/ my two 10y/o nephews AND we are in the same 4th grade class. We needed help and we all wanted a chance to post on this awesome site, so tks a bunch for helping! Even though our papers were

257. ## Math

if you have a 30 and a 24 feet long if she put it all around the garden using a 6foot sections of fence how many fence posts will she need.

asked by Ariyana Torrence
258. ## chemistry

what was the precipitate formed of pottasium bromide and lead nitrate mix with water?

asked by abonitalla cristina
259. ## English

when and where i.e words we should use the sufix mis,-mal,-im,ir

260. ## inft.101

How do you submitt to the black board?

261. ## math - Quadratic Factor

how to you factor -4x^2

262. ## algbra

how do you write an equation for: the sum of 4y and 18 minus 2y is 0

263. ## science

if the expiremenal density of something is 2.66 but the true is 2.7 what is the percent error?

264. ## physical

A cannon that is 10m long is designed to launch a 10kg ball over a castle wall. In order to do this the ball must have a speed of at least 50m/s as it exits the cannon. For every 10kg of explosives used, the force on the ball in the cannon increases by

265. ## science

why do exteremely hot particles emit certaion amount of light ?

266. ## Math

It is greater than 43 and less than 52 if you add the digits the sum 8 right the number word

267. ## French

So a direct object is to WHOM or to WHAT. But what does TO WHAT mean? How do you identify an indirect object>

need help

(9-4n)(-4)

-3x times x