# Questions Asked onSeptember 23, 2014

1. ## Math

Explain how to use hundredths grids to subtract 1.65 - 0.98.

2. ## Fractions

A hairstylist schedules 1/4 hour to trim a customer's hair and 1/6 hour to style the customer's hair. The hairstylist plans to work 3 1/3 hours each day for 5 days each week. How many appointments can the hairstylist schedule each week if each customer

3. ## Math

Pizza cost \$1.50per slice. Use a table and an equation to represent the relationship between the number of slices of pizza bought and the total cost?

4. ## P.E

It is often hard to practice self-control when eating in the company of others because we are greatly influenced by A. peer pressure B. environment C. time D. emotions Is the answer D? Thanks for any help.

5. ## statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20

6. ## science Help

White skin (W) is dominant over yellow skin (w) in chickens. Which of the following genotypes would result in a white-skinned chicken that could possibly have yellow-skinned offspring? A. WW B. Ww C. ww Is the answer B?

7. ## Science! Help

In humans, having dimples is a dominant trait. If one parent has dimples and is homosygous for the trait, what is the probability any of his or her offspring will NOT have dimples? A. 100 percent B. 50 percent C. 25 percent D. 0 percent Is the answer D?

8. ## Fractions

Zoey made 5 1/2 cups of trail mix for a camping tip. She wants to divide the trail mix into 3/4 cup servings. A)Ten people are going. Can Zoey make enough 3/4 cup servings so that each person on the trip has one serving? B)What size would the servings need

9. ## math

A class has 6 boys and 15 girls what is the ratio of boys and girls

10. ## Chemistry, empirical formula

Determine the empirical formula for the following compounds with these compositions (by mass): a) Cr 47.7% F 52.3% b) Na 42.1% P 18.9% O 39.0%

11. ## Science

What microscope would you use to observe dust mite's skin?

12. ## Science--Help.

Which of the following is NOT one of the eight most common elements in Earth’s continental crust? carbon silicon oxygen aluminum The most abundant element in Earth’s continental crust (by weight) is _____. 2. oxygen silicon calcium iron 3. The central

13. ## math

"Just look at the graph," the player's agent said. "Phil'!@#\$%^&s have doubled since last year. We are looking for a large raise and a long contract." Look at the graph. Graph: i.imgur. com/wY0gqtQ.png How can you redraw this graph so it appears that

14. ## PHYS. (forces)

A Styrofoam ball has just been shot straight up. Air resistance is not negligible. Draw a free-body diagram. i only have two attempts left and im not sure what im doing wrong. is the direction of gravity(down) and drag (up) wrong?

15. ## Explor wheel

the purpose of font formatting within a serach log is to identify key words, information, ___?

16. ## Fractions (not decimals)

Eleanor and Max used two rectangular wooden boards to make a set for the school play. One board was 6 feet long, and the other was 5 1/2 feet long. The two boards had equal widths. The total area of the set was 60 3/8 square feet. What was the width? THANK

17. ## Chemistry, HELP!!

a) If the volume of a flask is 165 mL and the mass of the vapor in the flask is 0.2136 grams, what is the density of vapor in the flask? b)If the temperature of the vapor is 25 degrees Celsius, what is the molecular weight of the vapor? (Assume the gas

Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. 22, 29, 21, 24, 27, 28, 25, 36 A. 4.8 B. 4.2 C. 2.8 D. 1.6

19. ## Chemistry

A professor orders 250 mL of house coffee at precisely 95°C. She then adds enough milk at 10°C to drop the temperature of the coffee to exactly 90° C. Calculate the amount of milk (in mL) the professor must add to reach this temperature. Assume that the

20. ## statistics 2

In Hamilton County, Ohio the mean number of days needed to sell a home is 86 days (Cincinnati Multiple Listing Service, April, 2012). Data for the sale of 40 homes in a nearby county showed a sample mean of 80 days with a sample standard deviation of 20

21. ## Math

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

22. ## Statistics

The following data set is the GPAs of the students in a statistics class. 1.93, 1.99, 2.00, 2.04, 2.12, 2.34, 2.55, 2.55, 2.75, 2.75, 2.80, 2.80, 2.85, 3.02, 3.12, 3.22, 3.31, 3.33, 3.45, 3.69 What percentile is a GPA of 2.34? A. About the 6th B. About the

23. ## physics

A person in a kayak starts paddling, and it accelerates from 0 to 0.577 m/s in a distance of 0.565 m. If the combined mass of the person and the kayak is 60.6 kg, what is the magnitude of the net force acting on the kayak?

24. ## math

The Sandersons are planning to refinance their home. The outstanding principal on their original loan is \$100,000 and was to amortized in 240 equal monthly installments at an interest rate of 11%/year compounded monthly. The new loan they expect to secure

25. ## science Help

Which of the following describes the genotype and phenotype of parents whose child will definitely have a recessive trait? A. Both parents are homozygous for the recessive allele and have the trait. B. Both parents are homozygous for the recessive allele

26. ## math

A telephone long-distance carrier charges customers \$0.99 for the first 20 minutes and then \$0.06 for each minute(or any part thereof) beyond 20 minutes. If Mary uses this carrier,how long can she talk for \$4.00? I started off with 0.99x+20+0.06x=4.00.

27. ## statistics 1

A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership.

28. ## language arts

. In "The Drummer Boy of Shiloh," the author sets this story before instead of during a battle

29. ## SCIENCE

If we decrease the distance an object moves we will decrease the amount of force applied. Decrease the amount of work done. increase the amount of force applied. increase the amount of work done.

30. ## Math

Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. 15, 42, 53, 7, 9, 12, 14, 28, 47 A. 29.1 B. 16.6 C. 17.8 D. 15.8 is it C

31. ## Algebra

The selling prices of houses in a city during one year were normally ditributed with a mean of \$259,000 and a standard deviation of \$15,000. Which of the following is closest to the percentage of the homes that had a selling Price between \$244,000 and

32. ## Grammar

1. Choose the answer that identifies the form of the verb in the sentence. Cindy is painting her room purple. present present participle past past participle Question 2. Choose the answer that identifies the tense of the verb in the sentence. Has the rain

33. ## Science

Which of the following units are in order from smallest to largest? a) Epoch, period, era. b) Era, epoch, period. c) Period, era, epoch. d) Epoch, era, period. True or False? Folding, as well as motion along faults, can change the position of rock layers

34. ## Science

using an example explain how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your everyday life? Do you have any suggestions

35. ## Chemistry 15

a vessel connected to an open-end mercury manometer is filled with gas to a pressure of .835 atm.the atmospheric pressure is 755 torr.In which arm of the manometer will the level of mercury be higher?What is the height difference between the two arms of

36. ## science Help

In humans, having more than five fingers or toes is dominant over having exactly five finger or toes. Which of the following situations would most likely result in exactly half of a couple's offspring having six digits and half of them having five? A.Both

37. ## Child care

6. Local, state, and provincial governments may have specific regulations that apply to the physical space in a day care center. A typical requirement in these regulations is a minimum of _______ square feet of usable play space for each child. A. 35 (B).

38. ## Calculus

Scorpion Gulch and Western Railway are preparing to build a new line through Rolling Mountains. They have hired you to do some calculations for tunnels and bridges needed on the line. You set up a Cartesian coordinate system with its origin at the entrance

39. ## Algebra

Logan saves \$5.50 in dimes and quarters over a week. He has 20 more dimes than quarters. Find the number of dimes and quarters he saves.

40. ## History

Which best defines History? A- discovery and classification of human artifacts B- people, places, and events of previous centuries C- study of ancient peoples and the way they changed D- study of human past and the story of change over time Please help!!

41. ## Chemistry

How much energy must you use to raise the temperature of 100 grams of water from 60 degrees Celsius to 70 degrees Celsius? show you calculations. I am confused on how to use formulas.

42. ## algebra

to pass a course with an A grade, a student ,must have an average of 90 or higher. A students grades on three tests are 93,92 and 83. What is the score the student must get on the nest test to get an A average?

43. ## algebra 2

The average score on a standardized test is 750 points with a standard deviation of 50 points. What is the probability that a student scores more than 700 on the standardized test?

44. ## Math

A satellite will be released into an orbit of more than 400 miles above the earth. the rocket is carrying it is currently 255 miles above earth write and solve an inequality to show how much higher the rocket must climb before it releases the satellite

45. ## math

The wave heights h in the open sea depend on the speed v of the wind and the length of time t that the wind has been blowing at that speed. Values of the function h = f(v, t) are recorded in feet in the following table. the values that you need on the

46. ## math

A recipe for fruit salad serves 4 people. It calls for 2 oranges and 16 grapes. You want to serve 10 people. How many oranges and how many grapes will you need?

47. ## Physics

A golfball comes to rest 1.9 seconds after hitting a net. The force of the net slowed down at a rate of 56.3 m/s2. What was the velocity of the ball when it first hit the net??

48. ## math

Which number of players can be arranged in the shape of square?

49. ## chemistry

Mercury poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes, leading to irreversible inactivity of these enzymes. If the amount of mercury in a polluted lake is 215 ng of mercury / mL, what is

50. ## physics

What's the momentum of a 3.5-kg boulder rolling downhill at 5 m/s?

51. ## physics

A toboggan slides down a hill and has a constant velocity. The angle of the hill is 6.70° with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan?

52. ## Science Help

Which of the following describes the genotype and phenotype of parents whose child will definitely have a recessive trait? A. Both parents are homozygous for the recessive allele and have the trait. B. Both parents are homozygous for the recessive allele

53. ## Physics

Two friends, Barbara and Neil, are out rollerblading. With respect to the ground, Barbara is skating due south at a speed of 5.2 m/s. Neil is in front of her. With respect to the ground, Neil is skating due west at a speed of 3.2 m/s. Find Neil's velocity

54. ## statistics 3

An airline promotion to business travelers is based on the assumption that no more than two-thirds of business travelers use a laptop computer on overnight business trips. 1. What is the sample proportion from an American Express-sponsored survey that

55. ## History

The invention of bronze in ancient Sumer was so significant because it_____ A- provided wealth for Sumer's growing upper class B- improved agriculture and gave rulers more power C- allowed the Sumerians to defeat the Akkadians D- provided scribes a

56. ## math

How much ribbon is needed to wrap the package shown if 15 inches of ribbon are needed to make the bow? length is 16 width is 9 height is 4

57. ## Physics

Consider a wet roadway banked as in the following figure, where there is a coefficient of static friction of 0.30 and a coefficient of kinetic friction of 0.25 between the tires and the roadway. The radius of the curve is R = 50 m. (a) If the banking angle

58. ## physics

A basketball player throws the ball at a 60° angle above the horizontal to a hoop whose centre is located a horizontal distance L = 8.60 m from the point of release and at a height h = 0.80 m above it. What initial speed is required if the basketball is

59. ## science Help

A long-haired cat (recessive trait s) is crossed with a heterocygous short-haired cat (dominant trait S). What percentage of their offspring will have long hair? A. 100 percent B. 50 percent C. 25 percent D. 0 percent Is the answer C?

60. ## Child care

You're attempting to determine the amount of usable floor space in your day care facility. Which one of the following areas can you include in your calculation? A. Toy shelves in Classroom A B. Bathroom adjacent to Classroom A (C). Hallway in the classroom

61. ## statistics 7

Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide (BusinessWeek, March 9, 2009). You would like to see if the data support this

62. ## sociology

Which statement best reflects the argument that prayer in school should be protected? (Points : 1) Prayer is protected by the second amendment. Prayer contributes to virtuous ideals in the student body. Prayer is different across cultures and as such

63. ## accounting

Pike Corporation paid \$100,000 for a 10% interest in Salmon Corp. on January 1, 2010, when Salmon's stockholders' equity consisted of \$800,000 of \$10 par value common stock and \$200,000 retained earnings. On December 31, 2011, after receipt of the year's

64. ## Pre-calculus/Trignometry

Which of the following is a correct equation for the line passing through the point (-1,4) and having slope m = -3? A. y-4=-3(x+1) B. y=-3x+1 C. 3x+y=1 D. y=-1/4x-3

65. ## Algebra 1

1) Alexis Received an 85, 89, and 92 On Three Tests. How Many Does She Need To Score On Her Next Test In Order To Have An Average Of At Least 90? 2) 1/5(30 + a)< 5 HEEEELPPP 😂😂

66. ## reference frames

Car A is heading north with a velocity of 14 m/s. Car B is traveling south with a velocity of 19 m/s. What is the relative motion between the two cars? A. 5 m/s B. 14 m/s C. 19 m/s D. 33 m/s would this be A, since 19-14 = 5?

67. ## Math Algebra

At a shoe store, a salesman earns a weekly salary of \$150. A salesperson is it also paid 2\$ each pair of shoes he or she sells during the week.

68. ## physics

Two objects (53.0 and 16.0 kg) are connected by a massless string that passes over a massless, frictionless pulley. The pulley hangs from the ceiling. Find (a) the acceleration of the objects and (b) the tension in the string.

69. ## statistics

The mean grade in this class last semester was 78.3, and the variance was 34.6 . The distribution of grades was unimodal and symmetrical.. determine how many students are likely to fail the class (90), if 60 students are enrolled. Show all your work, and

70. ## History

Many preachers included the concept of __________ in their messages meant to spread Christianity during the Second Great Awakening of the 1800s. manicheism, monism, perfectionism , creationism

71. ## Math

Waynes homework is to solve at least 20 questions from his textbook so far he has completed 9. Write an inequality to show how many more he needs to complete 9+q ≥ 20 q ≥ 11

72. ## History

What is a reason Sumer declines as a civilization? A- Sumerian rulers fought to gain territory B- the Tigris and Euphrates rivers dried up C- the climate changes drastically D- Sumerian rulers outlawed religion My guess is A

73. ## Physics

What is the threshold frequency for the photoelectric effect on lithium (phi= 2.93eV)? What is the stopping potential if the wavelength of the incident light is 400nm?

74. ## Math

Two wires are connected to a tower at the same point on the tower. Wire 1 makes an angle of 45° with the ground and wire 2 makes an angle of 60° with the ground. b) Which wire is longer? Explain. (2 marks) c) If the point where the two wires connect to

75. ## History

Which was one result of the domestication of animals? A- longer life spans for people B- increased trade among villages C- new kinds of food and clothing became possible D- new division of between men and woman I think it is D.

76. ## Science

An object has a volume of 22 liters and a mass of 35 kilograms what's the objects density?¿???????????????

77. ## organic chemistry

an alkane formula c8h18 can form only three monochlorination products give its structure

78. ## statistics 3

An airline promotion to business travelers is based on the assumption that no more than two-thirds of business travelers use a laptop computer on overnight business trips. 1. What is the sample proportion from an American Express-sponsored survey that

79. ## Physics

A motorcyclist traveling 35.0 m/s realizes suddenly that he is headed straight for the edge of the Grand Canyon 50.0 m away. He immediately begins to brake, decreasing his speed at a rate of 7.00 m/s^2. With what velocity will he fly off into the canyon?

80. ## Industrial Psychological Research

what is the proportion of students with a raw score less than 10? if information was collected from fellow students the rating on a 5 point scale on 5 different questions. given a normally distributed population with a mean of 13, a standard deviation of

81. ## statistics 7

Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide (BusinessWeek, March 9, 2009). You would like to see if the data support this

82. ## Mathematics and investment

1. Angelo wants to renovate his house in 3 years. He estimates the cost 300,000. How much must Angelo invest now at 8% compounded quarterly in order to have 300,000 3 years from now. 2. Angelo Ancis want to save 500,000 in 5.5 years to renovate their rest

83. ## Math

A farmer raises chickens and goats. She knows she has 22 animals all together. All together her animal has 56 feet. how many of each type of animal does she have?

84. ## Vector

Let P=(1,2,-1),Q=(3,-1,4),and R=(2,6,2) be three vertices of a parallelogram PQRS. (a) Find the coordinates of S. (b) Find the area of PQRS.

85. ## Math

In a test a student scored 51 marks out of 80. Express his mark as a percentage to the nearest whole percent

86. ## physics

A piston of a car engine executes a simple harmonic motion. the acceleration a of the piston is related to its displacement x by the equation: a = -6.4*10^5x a) Calculate the frequency of motion b) The piston has a mass of 700 gms & a max displacement of 8

87. ## Math

In an examination, 1/5 of the candidates failed. It is known that 240 candidates passed. How many candidates took the examination

88. ## statistics 1

A study found that, in 2005, 12.5% of U.S. workers belonged to unions (The Wall Street Journal, January 21, 2006). Suppose a sample of 400 U.S. workers is collected in 2006 to determine whether union efforts to organize have increased union membership.

89. ## Physics

White dwarf stars have been observed with a surface temperature as hot as 200,000 o C. What is the wavelength of the maximum intensity produced by this star?

90. ## lac 2

4. Critics often say that Chekhov’s short stories show “slices of life” rather than complete story arcs. How do the endings of "Star Food," "Everything That Rises Must Converge," and "The Bet" reflect what might be considered incomplete story arcs?

91. ## chemistry

Oops I left a part of the question out: 2. Mercury poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes, leading to irreversible inactivity of these enzymes. If the amount of mercury in a

92. ## Physics

A projectile of mass 0.377 kg is shot from a cannon, at height 6.6 m, as shown in the figure, with an initial velocity vi having a horizontal component of 6.1 m/s. The projectile rises to a maximum height of y above the end of the cannon’s barrel and

93. ## physics

An airport has runways only 196 m long. A small plane must reach a ground speed of 38 m/s before it can become airborne. What average acceleration must the plane’s engines provide if it is to take off safely from its airport? Answer in units of m/s 2

94. ## Science

Felipe made a toy boat out of clay, but it kept sinking in water. He changed the boat's design by making it slightly wider than before. Why did Felipe's newly designed boat float on water? A. He decreased the density by increasing the volume. B. He

95. ## Calculus

A sinusoidal section is to be built as part of a roller coaster track. The high point is h=27 m at a horizontal distance d=0 m. It has a low point at h=-3 m at d=50 m. a. Write an equation expressing h in terms of d. b. The lengths of the horizontal

96. ## Math

If a dozen items are divided into two equal groups how many will be in each group explain how you know

97. ## FRACTION CONCEPTS

I am a fraction whose numerator and denominator are both prime numbers less than 20. if you were to increase each term by 1, I would be equivalent to 1/2. what fraction am I?

98. ## Physics

As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 85 m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68 s to cover 85 m when walking on the ground, how long will it take you to cover

99. ## Science Help

A long-haired cat (recessive trait s) is crossed with a heterocygous short-haired cat (dominant trait S). What percentage of their offspring will have long hair? A. 100 percent B. 50 percent C. 25 percent D. 0 percent Is the answer C?

100. ## Science! Help

In humans, having more than five fingers or toes is dominant over having exactly five finger or toes. Which of the following situations would most likely result in exactly half of a couple's offspring having six digits and half of them having five? A.Both

101. ## Science

A piece of aluminum has a mass of 39.15g and a volume of 14.5cm cube. Determine the density of the aluminum. What would the density be of a much larger piece of aluminum? explain. I established the density of the al. is 2.7g/ cm cube. I don't get the

102. ## math

What are the coordinates of the reflection of (a, b) over the y-axis?

103. ## Maths

Matt has a bag containing 12 green marbles and 8 blue marbles. Without looking, he pulls out one marbles and places it on the table. He then picks a second marbles from the bag. What is the probability he will have 2 blue marbles?

104. ## chemistry

10. A student weight out a 25 g sample of NaCl, SiO2 and NH4Cl. The student determines the sample contains 3.0 g NH4Cl and 7.0 g SiO2. What is the percentage of NaCl by mass (weight) in the sample?

105. ## Calculus

A spacecraft is in an elliptical orbit around the earth. At the time t=0 hours, it is at its apogee (highest point), d=1000 km above the earth's surface. It is at its perigee (lowest point) d=100 km above the surface 50 minutes later. a. Assuming that d

106. ## science Help

A long-haired cat (recessive trait s) is crossed with a heterocygous short-haired cat (dominant trait S). What percentage of their offspring will have long hair? A. 100 percent B. 50 percent C. 25 percent D. 0 percent Is the answer C?

107. ## Physics

What is the threshold frequency for the photoelectric effect on lithium (phi= 2.93eV)? What is the stopping potential if the wavelength of the incident light is 400nm?

108. ## Physics

An experimenter finds that no photoelectrons are emitted from tungsten unless the wavelength of light is less than 270nm. Her experiment will require photoelectrons of maximum kinetic energy 2.0eV. what frequency of light should be used to illuminate the

109. ## statistics

In order to study whether IQ level is related to birth order, data were collected from a sample of 540 students on their birth order (Oldest/In Between/Youngest) and their score on an IQ test. The data collected in this study would be best displayed using:

110. ## maths

in a group of 60 children 31 speak French 23 speak Spanish 14 neither French nor Spanish find the number of student who speak: (a)both French and Spanish (b)French only (c)Spanish only draw a venn diagram please answer quickly

111. ## Math

sumiko is allowed to watch no more than 10 hours of televisione ach week she has watched 4 hours of television already. write and solve an inequality to show many more hours of television sumiko can watch 10≤4+h

112. ## Math

The expression cos 60° is equivalent to sin ?

113. ## Physics

Your friend is an environmentalist who is living in a tree for the summer. You are helping provide her with food, and you do so by throwing small packages up to her tree house. If her tree house is 21 m above the ground, what is the minimum (initial) speed

114. ## Physics

What is the threshold frequency for the photoelectric effect on lithium (phi= 2.93eV)? What is the stopping potential if the wavelength of the incident light is 400nm?

115. ## sociology

One who believes in a social contract theory would most agree with which statement? (Points : 1) people do not need laws to live harmoniously in society. humans make contracts in order to buy things. in order to establish society, humans agree to obey

116. ## Math Help

Choose the word phrase that can be represented by 2 – p. the difference of a number p and 2 the quotient of 2 and a number p 2 more than a number p 2 decreased by a number p 2. Which word phrase could represent the variable expression 1/2a + 4? 4 more

117. ## chemistry

A 50g chunk of metal (c=0.0506 j/g°C) is heated to 60°C. it is then dropped into a calorimeter(c=1.40 j/g°C,m=5.0 g)that contains 100.0g of an unknown liquid. the temperature of the liquid raises from 15°C to 20°C.What is the c of the calorimeter?

118. ## sociology

According to literature on violence in television, the average 18 year old will have seen how many violent acts? (Points : 1) 1,000 6,000 8,000 60,000 200,000

119. ## physics

worker stands still on a roof sloped at an angle of 30° above the horizontal. He is prevented from slipping by a static frictional force of 560 N. Find the mass of the worker.

120. ## math

A pair of intersecting planes ______ intersect in exactly one point? A- always B- sometimes C- never D- not enough information I think A- always, but I do not know for sure.

121. ## government

The purpose of the First Ten Amendments to the Constitution is to __________.

122. ## MATH-Help!

A new set of car tires has a tread depth of 8 millileters. The tread depth decreases 0.12 millimeter per thousand miles driven. Write an equation that gives the tread depth as a function of the distance driven. Then predict what distance the tread depth

123. ## Chemistry

A hydrogen atom has a mass of 1.673x10^-24 g How many hydrogen atoms would you have in 5.6 g of hydrogen?

124. ## Math

Logan saves \$5.50 in dimes and quarters over a week. He has 20 more dimes than quarters. Find the number of dimes and quarters he saves. How do I solve the problem algebraically?

125. ## physics

A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity of +11.4 m/s in a time of 29.2 s. The combined mass of the boat and trailer is 443 kg. The frictional force acting on the trailer can be ignored. What is the

126. ## Math

you complete 3 cm of a necklace in1 hour. Each hour after the first hour you triple the length of the necklace. What is the length of the necklace after 3 hours?

127. ## physics

If the earth doubled in mass but stayed the same size, what would be the acceleration due to gravity at the surface? m/s2 The dimensions of the earth as we currently know it are: Mass = 5.98E24 kg, Radius = 6.38E6 m and the universal gravitational constant

128. ## Math

Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one

129. ## Chemistry

Since a hydrogen atom consists of just one proton and one electron, it should have a mass of 1.673 x 10^-24 g. And so it does. Calculate how many hydrogen atoms you'd have if you had 5.6 g of hydrogen.

130. ## Explore wheel

A online data base is a way for students to keep track of information during research. Am I correct

131. ## physics

A rock dropped into a pond produces a wave that takes 15.7 s to reach the opposite shore, 24.3 m away. The distance between consecutive crests of the wave is 3.5 m. What is the frequency of the wave?

132. ## social studies

which two cities of nepal are connected by siddhartha highway?

133. ## Math

Solve the given quadratic equation exactly using the quadratic formula. Write the solutions in its simplest form. Using a calculator, determine all irrational solutions to the nearest thousandth. Separate the solutions with a comma and list the smaller one

134. ## algebra

the numbers on two consecutively numbered gym lockers have the sum of 131. what are the locker numbers?

135. ## Physics

Calculate the gravitational potential energy of the water in a lake of volume 100km^3 (mass=1.0x10^14kg). The lake has an average height of 50m above the hydroelectric generators at the base of the dam holding the water back.

136. ## Physics

An FM radio station of frequency 107.7MHz puts out a signal of 50,000 W.How many photons/s are emitted?

137. ## Trigonometry

Factor the expression and use the fundamental identities to simplify. 1-2 cos^2x + cos^4x

138. ## Algebra 2 Help plz

The amount of paint an electric paint sprayer applies varies directly with time. A sprayer is set to apply 0.5 gallon in 2.5 minutes. Write an equation that gives the amount P of paint as a function of the time T. How much paint is applied if the sprayer

139. ## math

A box of 20 Crunchy Munchy cookies costs \$2.50 and a box of 40 Crunchy Munchy cookies costs \$4.00. One quart of milk costs \$1.50. Which of the following options costs less?

140. ## math

The amount of paint an electric paint sprayer applies varies directly with time. A sprayer is set to apply 0.5 gallon in 2.5 minutes. Write an equation that gives the amount P of paint as a function of the time T. How much paint is applied if the sprayer

141. ## Algebra

A new set of car tires has a tread depth of 8 millileters. The tread depth decreases 0.12 millimeter per thousand miles driven. Write an equation that gives the tread depth as a function of the distance driven. Then predict what distance the tread depth

A number has more ones than tens. the value of the tens digit is 50. the ones digit in the number is less than 7. what are the possible numbers

143. ## US Government

Why might the Framers have wanted the presidents power in foreign affairs to be so broad?

144. ## Social Studies

I need a website that has answers to this worksheet: Russia and Eastern Europe: CHERNOBYL - April 26, 1986.

145. ## Algebra

You are planing to put a title border along a 175-inch-wide wall in your kitchen. You want to use only whole titles. List all the possible whole number title widths of 8 inches or less, what size title could you use? 8 inch or 4 inch

146. ## Sociology

Research on children raised in orphanages has found that?

147. ## Physics

The Stanford Linear Accelerator can accelerate electrons to 50GeV (50x10^9eV). What is the minimum wavelength of photon it can produce by bremsstrahlung? Is this photon still called an x-ray?

148. ## algebra

what is the system of equation of: 0.25x+0.15y=2.5 1.25x-1.25y=7.5

11.abhor : detest 12.infraction 13.resolute 14.infringe 15.abound 11.Find the pair of words that has the same kind of relationship as the numbered pair. abscond : flee :: A. ascertain : forget B. concise : cut C. discern : hide D. abhor : detest 12.In

150. ## History

I'm back. I didn't understand the answer yesterday, and I re-read my book, but I'm still confused. Can you help? 1. Why did the system of feudalism arise during the Middle Ages? A. to develop an economic system B. to determine jobs within a city C. to

151. ## calculus

Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1

152. ## Vector

Let 𝑎⃗ and 𝑏 be two vectors in the xy plane making angles 𝜃 and ∅ with the x axis, respectively. Use vector algebra to show that: cos(𝜃 − ∅) = cos 𝜃 cos ∅ + sin 𝜃 sin ∅

153. ## Math

Write an inequality for each statement The product of a number and -4 is at most 24

154. ## sociology

Justice Potter Stewart would most agree with which claim about obscenity? (Points : 1) It is easy to concretely determine what obscenity is. People can intuitively understand what obscenity is. Obscenity ought to be allowed so long as no one is harmed.

155. ## Physics

How long does it take an automobile traveling 68.5 km/h to become even with a car that is traveling in another lane at 56.5 km/h if the cars’ front bumpers are initially 145 m apart? Answer in units of s.

156. ## chem

a 50ml aliquot sample of vinegar is titrated with a 0.078 M NaOH sol'n. The phenolpthalein end point was reached after the addition of 35.6 ml. Equation: HC2H3O2 + NaOH _____> NaC2H3O2 + H20 Calculate the % by mass/vol. of acetic acid in the sample.

157. ## Physics

A body's temperature is increased from 900K to 1900K. By what factor does the total power radiated per unit area increase?

158. ## Physics

A car is traveling at 72 km/hr. The driver begins to apply the brakes and the begins to slow with a constant acceleration (a). After the brakes are applied, the car stops in a distance of 100 m. What is the acceleration? My teacher gave the class a list of

159. ## physics

If a ball hits a wall going 10 m/s, and bounces off going 7 m/s. What is the coefficient of restitution?

160. ## physics

The longest pass in NFL history is approximately 83.7 m. Ignoring the effects of air resistance, calculate what must have been the initial speed of the football.

161. ## Maths

Ratio of the radius of the cylinder to the cone is 1:2 assume their height are the same find the ration of their volumes.

162. ## math

The least common multiple of two numbers is 60 and one of the numbers is 7 less than the other number. What are the numbers? Justify your answer.����

163. ## science

calculate the number of moles inside a soap bubble 1cm in diameter and 1atm pressure at a temperature of 25 degree celsius.

164. ## Physics

The Stanford Linear Accelerator can accelerate electrons to 50GeV (50x10^9eV). What is the minimum wavelength of photon it can produce by bremsstrahlung? Is this photon still called an x-ray?

165. ## Vector

Your engineering firm plans to design an elevator for a hospital. The force exerted on a passenger by the floor of the elevator is not to exceed 1.60 times the passenger¡¦s weight. The elevator accelerates upward with constant acceleration for a distance

166. ## Physics

Q1-a stone is thrown upwards into the what is the magnitude and direction of its acceleration ? Q2-if a ball is thrown horizontally from a top of a cliff and takes 3 seconds to reach the beach below. Calculate the height if the cliff by considering the

167. ## Physics

An experimenter finds that no photo-electrons are emitted from tungsten unless the wavelength of light is less than 270nm. Her experiment will require photo-electrons of maximum kinetic energy 2.0eV. what frequency of light should be used to illuminate the

168. ## statistic research

ryan selects one card from a deck of 52 different card. the first card is not replaced before joe selects the second one. in how many different ways can they select the two card?

169. ## HELP

Shane's seats at the concert were so far from the stage that he could not ____________ who was the lead singer and who was the guitarist

170. ## College Pre-Calculus

find a function m such that m(f) is the number of miles in f feet

171. ## Physics

Starting from rest, Mr.M's bus achieves a velocity of 25 m/s in a distance of 1.0 km. Find the time and the acceleration. I don't know which formula to use. Delta T = Vf - Vi / Aavg ?

172. ## physics

From a 5 metre high smooth hill a 6 kg block slides down and stops somewhere on the horizontal ground. Effect of turning part is negligible. Find the work done while the block is pulled back from this position to the top of the hill.

173. ## Geometry

Did I solve the following correctly? I had to the fin the midpoint. A (-3, 2) B (5, -4) I did the midpoint formula: M(-3+5/2, 2+ -4/2=M (2/2, -2/2). Is (2/2, -2/2) the correct midpoint?

174. ## Physics

An FM radio station of frequency 107.7MHz puts out a signal of 50,000W. How many photons/s are emitted?

175. ## Physics

A hockey puck slides with an initial speed of 48 m/s on a large frozen lake. If the coefficient of kinetic friction between the puck and the ice is 0.030, what is the speed of the puck after 11 s?

176. ## calculus

Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1

177. ## Physics

The Stanford Linear Accelerator can accelerate electrons to 50GeV (50x10^9eV). What is the minimum wavelength of photon it can produce by bremsstrahlung? Is this photon still called an x-ray?

178. ## history

How did Calhoun and South Carolina propose to test the theory of nullification? What factors contributed to their decision?

179. ## Social studies

I need help for my 6th grader how do we describe some of the similarites and difference between the southern and northern regions with each other

180. ## Fractions

Eleanor and Max used two rectangular wooden boards to make a set for the school play. One board was 6 feet long, and the other was 5 1/2 feet long. The two boards had equal widths. The total area of the set was 60 3/8 square feet. What was the width?

181. ## criminal justice

In what ways do corrections professionals use the social justice principles of equality, solidarity, and human rights to build a more just society.

182. ## health

Veins carry blood ________ the heart A. Away from B. Towards C. Neither A or B D. Both A and B c

183. ## health

Question 8 of 20 5.0 Points Functions of blood include: A. Transporting hormones from glands B. Transporting carbon dioxide away from the lungs to body tissue C. Transporting waste away from the kidneys D. All of the above A

184. ## Math

Felix wants to get at least one hour of exercise each day Today he has run for 40 minutes. Write an inequality to show how much longer he needs to exercise to reach his goal 40+e≥ 60 e≥ 20

185. ## chemistry

Can someone tell me what steps i need to take? So confused on how to solve this An average human adult takes about 15breaths per min and exhales 23ml of co2 with each breath. If your trapped in a cave with pressure .963atm and 11C and your only source of

186. ## Physics

An FM radio station of frequency 107.7MHz puts out a signal of 50,000W. How many photons/s are emitted?

Simplify & write the answer using positive exponents: 1. (3^3)(3^-6) 2. S^2 t^-1 / (s^4 t^4)^1/2 Simplify then evaluate, express answer to 4 decimal places where nessasssary : 3. [(2/3)^2]^-3 4. [(1-4)^-3 Divide (1/4)^2]^-2

188. ## Physics

A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees, the energy of the scattered electron, and the recoil angle of the electron.

189. ## chem

A .7567 impure KHP was dissolved in water. 26.7 ml of standardized 0.068 M NaOH was used to achieve a phenolphthalein end point. The stoichiometric ratio between KHP and NaOH is 1:1. What is the percent by mass of KHP in the sample?

190. ## Science

Why might scientists first want to build and study a model of their proposed project?

191. ## Science

The gradient or slope of the distance time graphy at any pont gives

192. ## science

Do all animals reproduce?

193. ## Physics

This is a vector problem. A man starts at home and runs 5 miles north and then 5 miles in a direction 23 degrees south of west. Now he wants to go back home in a straight line. How far does he need to go and in what direction? so i found that the

194. ## Math

Find two numbers the exact answer is between 6x7381

195. ## math

Becky a saleswoman,is offered two salary plans. Plan 1 is \$450 per week salary plus a 3% commission of sales. Plan 2 in a \$300 per week salary plus a 16% commission of sales.How much would Becky need to make in sales for the salary to be the same from both

196. ## algebra

What is the system of equation of: 1/2x+-2/3y=4 2x+1/3y=7

197. ## physics

a 700 newton man is able to climb up 4.5 meters on a 6 meters ladder before it slips. What must be the coefficient of friction be if the ladder is arranged so that it makes an angle 50 degrees with the ground? Assume the ladder to be uniform and weighing

198. ## Physics

An experimenter finds that no photo-electrons are emitted from tungsten unless the wavelength of light is less than 270nm. Her experiment will require photo-electrons of maximum kinetic energy 2.0eV. what frequency of light should be used to illuminate the

199. ## algebra

Becky a saleswoman,is offered two salary plans. Plan 1 is \$450 per week salary plus a 3% commission of sales. Plan 2 in a \$300 per week salary plus a 16% commission of sales.How much would Becky need to make in sales for the salary to be the same from both

200. ## health

The spinal cord serves as a conduction pathway for impulses going to and from the ________. A. Lungs B. Liver C. Brain D. Heart

201. ## math

The school cafeteria serves pizza every 6th day and applesauce every day Thursday supposed to pizza and applesauce are both on today's menu in how many days will they be together on the menu again?

202. ## Physics

A crate of mass 54 kg is attached to one end of a string, and the other end of the string runs over a pulley and is held by a person as in the figure below. If the person pulls with a force of 93 N, what is the crate's acceleration? (Assume that upward is

203. ## math

Jim is painting a new shed . If 1/5 of a gallon of paint covers 2/25 of the shed , how many gallons of paint would be needed to paint 4 sheds of that size?

204. ## Physics

A car enters the freeway with a speed of 7.2 m/s south and accelerates uniformly for 4.2 km in 4.0 min. How fast (in m/s) is the car moving after this time? I only need the formula. My teacher gave us a list but did not tell the class which equation is for

205. ## Physics

If a 6.0keV photon scatters from a fee proton at rest, what is the change in the photon's wavelength if the photon recoils at 90 degrees?

206. ## Math

Bricks have a mass of 1.57 kg each. How many bricks are there in 5whole number 1/4tonnes ?

207. ## physics

You are riding a carousel that is turning at a constant angular velocity. You must pull toward the center with 100N of force to stay in place. You decide to move radially toward the center of the carousel to ride on a small animal figure that is at half

208. ## Math

The sine ratio is positive in the first and what other quadrant?

209. ## calculus

Find the derivative of (6x^2+4y^2)/(3x+7y)=3 using implicit and quotients rule. Thank you!

210. ## algebra

I really need that to my examples in my report tomorrow those i posted question, its a kind of test tomorrow please help me now please... even if now only...

211. ## algebra

the cinema sold 600 tickets total. adults tickets were \$15 and childrens tickets were \$8. they made a total of \$7740. how much of each ticket were sold?

212. ## Math

If 1/3 is equal to 2/6 how come my teacher says it is equal to 5/8?

213. ## Algebra 2 (Please, help me!)

1. Explain how to find the slope of a line from a table of data. A: ? 2. Explain how to justify the Cross Products Property by using Mulitplication Property of Equality. A: ?

214. ## Math

Simplify and write the answer using positive exponents : 1. (3^3)(3^-6) 2. S^2 t^-1 / (s^4 t^4)^1/2 3. [(2/3)^2]^-3

215. ## Math

Fern rounded to the nearest ten to estimate 548-132. She subtracted 540-130=410. Is Fern's estimate correct? Explain.

216. ## Physic

The distance between two nearest nodes of a standing wave is 17.3 cm. Hand generated pulses move up and down through a complete cycle four times every seven seconds. Find the velocity of the wave. Answer in units of m/s.

217. ## Analytical Chemistry (Titrations)

About 10ml of concentrated HCl was transferred to a 1-L volumetric flash and diluted to mark with distilled water. When this solution was used to titrate a sample of pure sodium carbonate, Na2Co3, weighing 0.3054 gram, it took 35.09 ml to reach the methyl

218. ## Meth

18. Jared wants to rent a car. They charge \$39.95 per day plus miles. The first 100 miles are free, but the company charges \$0.20 per mile after that. If Jared has \$50, what is the range of number of miles he can drive if he rents the car for one day?

219. ## Physics

A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees, the energy of the scattered electron, and the recoil angle of the electron.

220. ## Physics

An experimenter finds that no photo-electrons are emitted from tungsten unless the wavelength of light is less than 270nm.

221. ## Organic Chem Help

Can someone explain how crystallization works to produce a product that is purer than the input material. Thank you!

222. ## Physics

A television tube operates at 20,000V. What is min wavelength for the continuous x-ray spectrum produced when the electrons hit the phosphor?

223. ## chemistry

Would a substance with a density of 7.89 kg/dm^3 float on a substance that has a density of 14.2 g/ml?

224. ## algebra

1.Find an equation of the line that passes through (4,3) and is parallel to the line 3x-y=7. 2. Find the equation of the line through (4,3) perpendicular to the line 3x+y=7. Please show work so I know how to do it

226. ## Algebra 2

Explain how to find the slope of a line from a table of data.

227. ## Chem---DrBob222

-----Chromatograph----- Carrying out TLC on colorless compounds. Give two examples of methods to use in order to visualize the spots on the plates. Carrying out TLC with a mixture of two compounds A and B. A is less polar than B. on a reverse phase plate

228. ## French

What is the difference between aller and vas? What is the difference between these two sentences? Il parle à Marie. Il parle de Marie.

229. ## Criminal Justice

What are three main issues that face corrections professionals on a regular basis and address the best responses to these issues.

230. ## Physics

A body's temperature is increased from 900K to 1900K. By what factor does the total power radiated per unit area increase?

231. ## Physics

A television tube operates at 20,000V. What is min wavelength for the continuous x-ray spectrum produced when the electrons hit the phosphor?

232. ## chemistry

A sample of 1.15g of lead (II) nitrate is mixed with 121mL of 0.104 M sodium sulfate solution. Part A Write the chemical equation for the reaction that occurs.

233. ## Physics

Two children are playing on a 147-m-tall bridge. One child drops a rock (initial velocity zero) at t = 0. The other waits 1.2 s and then throws a rock downward with an initial speed v0. If the two rocks hit the ground at the same time, what is v0?

234. ## Math

A new set of car tires has a tread depth of 8 millileters. The tread depth decreases 0.12 millimeter per thousand miles driven. Write an equation that gives the tread depth as a function of the distance driven. Then predict what distance the tread depth

235. ## Math

Write an inequality for each statement The product of 2/3 and x is no more than -16 2/3x ≤ -16

236. ## Physics

White dwarf stars have been observed with a surface temperature as hot as 200,000 o C. What is the wavelength of the maximum intensity produced by this star? help please don't know what to do

237. ## math

a radio uses one-third the number of watts used by lamp, and a heater that uses 15 times as many watts as a lamp. when all are in use, the total electrical power is 1.1 kilowatts how many does the radio use?

238. ## Science

If the coordinates of points A and L are -4 and 8, respectively, then the midpoint between them has a coordinate of____ A- 0 B- 2 C- 4 D- 6 Please help me understand this!

239. ## Physics

White dwarf stars have been observed with a surface temperature as hot as 200,000 o C. What is the wavelength of the maximum intensity produced by this star?

240. ## english

how do u write an outline over someone you admire like for instant my cousin who helped me in band, athletics and school work??

241. ## Algebra

Maggie is making fruit punch. She uses 2 1/2quarts of grape juice and 1 1/2 quarts of orange juice. 1 quart of grape =\$1 less and 1 quart of orange juice. The total cost to make the fruit punch is \$12.50 how much is each quart of each juice?

242. ## Economic

The Admissions Director (AD) wants to determine the optimum number of students for each ECO561 class. You are provided with the following data: Tuition is \$1250 per student. Instructor Pay \$2500 Other incidental (variable) costs - \$1000.00 Variable cost

243. ## Calculus I

I have to determine if this function is either odd or even or neither. f(x)=x^3*abs(x^3) + x^3 I do not know how to approach this question as the absolute value is giving me trouble. Please help. Thanks.

244. ## math

Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it i don't get it

245. ## Precalculus

Find two values for theta such that theta is greater than or equal to 0 but less than or equal to 2pi. 1. Tan theta=1.1071 2. Sin theta = -0.8818

246. ## Physics

If a 6.0keV photon scatters from a fee proton at rest, what is the change in the photon's wavelength if the photon recoils at 90 degrees?

247. ## Physics

A gamma ray with 700KeV energy is Compton-Scattered from an electron. Find the energy of the photon scattered at 110 degrees, the energy of the scattered electron, and the recoil angle of the electron.

248. ## math

If the coordinates of points A and L are -4 and 8, respectively, then the midpoint between them has a coordinate of____ A- 0 B- 2 C- 4 D- 6 Please help me understand this!

249. ## statistics

Teenage smoking rate dropped to 8.5% in 2007 from 17.6% in 2001 and 23% in 1997. 1. Calculate the probability that at least one in a group of 10 teenagers smoked in 2007. 2. Calculate the probability that at least one in a group of 10 teenagers smoked in

250. ## Math

The quotient of a number and 15 is at least 3 n/15 ≥ 3

251. ## physic

The distance between two nearest nodes of a standing wave is 16.3 cm. Hand generated pulses move up and down through a complete cycle four times every seven seconds. Find the velocity of the wave. Answer in units of m/s.

252. ## science

ind the molality of the solution obtained when 36.5 gram HNO3 is dissoloved in 750 gram water

253. ## Physics

A television tube operates at 20,000V. What is min wavelength for the continuous x-ray spectrum produced when the electrons hit the phosphor?

254. ## Math

Find a unit vector in the direction of(1/2, 1/2, 1/2).

255. ## math

Theater prices: Adult- \$6.00 Student- \$3.00 4 adult tickets and 6 student tickets on a night that offers the special deal that a free ticket is given with each ticket purchased

256. ## Math

1/5 of the people in a village have been inoculated against measles. If 50 people have been inoculated, what is number of people in the village.

257. ## Algebra 2

Explain how to find the slope of a line from a table of data.

258. ## Algebra 2

Explain how to justify the Cross Products Property by using the Multiplication Property of Equality.

259. ## english

what are some archetypal monster in movies. (we just got done reading beowulf) thank you!!

260. ## math

Samy bought 5 1/3 lb of apples to make some apple pie. What is the weight of the apples written as a decimal?

261. ## English

1. The staff meeting will be held next Tuesday. 2. The staff meeting will be taken next Tuesday. 3. The staff meeting will be got next Tuesday. 4. The staff meeting will be finished next Tuesday. (#1 is grammatical, right? What about the others from

262. ## Criminal Justice

How do corrections professionals use criminal theory in their practice.

263. ## dana

Wich lets you put Equal groups toghether?

264. ## math

any number that can be expressed as the ratio of 2 integers a/b, where b does not equal 0, is a rational number

265. ## MATH ASAP!!

Rationalize the denominator using the conjugate. 1/1-√7+√5 please show all the steps and explain it

266. ## Physics

If a 6.0keV photon scatters from a fee proton at rest, what is the change in the photon's wavelength if the photon recoils at 90 degrees?

267. ## physics

A spring with a spring constant of 53.0 N/m is attached to different masses, and the system is set in motion. What is its period for a mass of 2.7 kg?

268. ## math statistics

A group of teenager smoking rate dropped 8.5% in 2007 from 17.6% in 2001 and 23% in 1997. 1. Calculate the probability that at least one in a group of 10 teenagers smoked in 2007.2. Calculate the probability that at least one in a group of 10 teenagers

269. ## MATHS

Three fair coins are tossed at the same time. What is the probability that one of the coins will show heads and other two will show tails?

270. ## Linear Algebra

Show that the set [(3,-2,4),(1,2,-1), (-6,4,-8) is linearly dependent by writing a non-trivial liner combination of the vectors that equals the zero vector. After some calculations I got t1=2, t2=0 and t3=1, but its my understanding that if a set is

271. ## Math

Show that the set [(3,-2,4),(1,2,-1), (-6,4,-8) is linearly dependent by writing a non-trivial liner combination of the vectors that equals the zero vector. After some calculations I got t1=2, t2=0 and t3=1, but its my understanding that if a set is

272. ## math

In my homework it says to put 1,3,4,and 8 to equall 18 only using the symbols +.-,x, and ( ). What is the answer to that?

273. ## Math

A ball is dropped from ten feet and caught after it touches the ground on the 30 th bounce, what is the distance traveled by the ball?

274. ## algebra

what is the system of equation of: 1/2x+ 1/2y=4 3x-2y=5/4

275. ## Algebra 2 Answer Check

If the rise and run are reversed for the linear equation y = 8x + 4, what is the slope of the new line? A: 0.125 or -1/8?

276. ## math

The partial derivative with respect to y for z=e^y sin(xy) is: zy= xe^y cos(xy) + e^y sin(xy) How do i get to this answer? Thanks.

277. ## math

Changing decimal to percent .123=12.3%=12 3/10 ??

278. ## ecu

test has a 500 mean with a sd of 150; with a score of .13% both negative and postive 2.14%

279. ## ratios

what is the ratio of 4/5 over 1/6 in simplest form

280. ## math

the expression that is equivalent to -2(x - 7).

281. ## introduction to psychology ll

Researchers have found that, during childhood:

282. ## math

Determine all values of k for which each pair of vectors is orthogonal. a) (1,2) and (k,k) b) (1,2,1) and (k,2k,4)

283. ## Math

So she saw 461 dolphins that are 5 year so we don't need to estimate on this problem. So I did 461/5 is 92 is the answer. Then the said how many did he spot per summer in the 5 summers he worked so I think we need to divide the answer which is 92 and the

284. ## math

2a÷4=3 .....is this answer correct: 2a=3×4 2a=12 2a÷2=12÷2 a=6

285. ## math

3×/4+11=22-5 3×/4+11-11=22-5-11 3×/4=6 (4) 3×/4=6 (4) 3×=24 /3=24/3 ×=8 correct... 3(8)/4+11=22-5 24/4+11=17 6+11=17 17=17 Nevermind :)

286. ## Math

5y^3 ( -x^4) When x is -2 and y is -1

287. ## math

-5 an 7/12 divided by 12 equals

288. ## International Law

Hello What two nations has the United Nations intervened. I have Cuban and Angola, Israel and Arab States. I am looking for more examples. Thank You

289. ## math

12.5% =.125=125/1000 or 12 5/10=12 1/2 m confused

290. ## math,algebra

(3^-1X^3)^2 x 12X^5 my work: 3/2X^6 x 12X^5= 36/2=18X^11 but the answer was 4/3X^11

291. ## introduction to psychology ll

Toddlers are able to:

292. ## math

solve x+2=2x+1