# Questions Asked onDecember 7, 2014

1. ## language arts

Choose the meaning that best matches the meaning of the patron A wealthy museum patron funded the construction of a new wing architect supporter artist celebrity is it supporter? Thanks!

2. ## language arts

Which of the following phrases from the novel best describes Johnny's status, to place, in the household as the book begins? A. most of the boys in the other shops around Hancock's wharf liked Johnny B. Of the three boys, only Johnny read easily and well

3. ## Stats

In a sample of 400 voters, 360 indicated they favor the incumbent governor. The 95% confidence interval? I can't figure out what to do without a standard deviation!!!!!!!!

4. ## linear algebra

Bob and Doug play a lot of Ping-Pong, but Doug is a much better player, and wins 80% of their games. To make up for this, if Doug wins a game he will spot Bob five points in their next game. If Doug wins again he will spot Bob ten points the next game, and

5. ## Science

A geologist working in a national park finds a mineral. He is carrying a kit that contains a penny, a hand lens, a piece of tile, a geologic hammer, and a jackknife. Describe how the geologist can use items to determine some of the mineral's

6. ## Calc I

if f(t)=sqrt(4t+1) find f''(2) I got the first derivative to be: 1/2(4t-1)^-1/2 * 4t^3 and i'm trying to figure out if i need the product rule again to find the second derivative -1t^3(4t-1)^-3/2 * 4t^3 The answer if -4/27 and I'm not sure how to get that

7. ## physics

A contestant in a winter games event pushes a 41.0 kg block of ice in the positive direction across a frozen lake as shown in the Figure (a). The coefficient of static friction is 0.1 and the coefficient of kinetic friction is 0.03.

8. ## Physics

A 1000-kg car has four 10-kg wheels. What fraction of the total kinetic energy of the car is due to rotation of the wheels? Assume that the wheels have the same rotational inertia as disks of the same mass and size. Explain why you do not need to know the

9. ## Chemistry

estimate Delta H for the following reaction C2H4 (g)+3O2(g)→2 CO2(g)+2 H2O(g) So we have (4) C-H bonds and (1) C=C bond or (H = 4*414 + 615= 2271) For oxygen, (3) O=O bonds or (H = 3*502=1506) 2CO2 is (2) O=C=O (H=730*4=2920) 2H2O is (2) H-O-H or

10. ## Math

A bottle rocket travels along a parabolic path and reaches a maximum height of 21 feet after traveling a horizontal distance of 7 feet. A) Write a quadratic function of the form y=a(x-h)^2 +k that models the bottle rocket's path, assuming it leaves the

11. ## Calculas

A box lid is to be made from a rectangular piece of cardboard measuring 72 cm by 216 cm. Two equal squares of side x are to be removed from one end, and two equal rectangles are to be removed from the other end so that the tabs can be folded to form a box

12. ## language arts

Which of the of the following phrases or sentences from the novel Johnny Tremain best describes the setting as the action of the story begins? A. and so, in a crooked little house at the head of Hancock's wharf on crowded Fish street B. On one side of the

13. ## spanish

Juan oye _____ su perro Spot. Would I use a personal a in the blank or leave it as it is.

14. ## Stats

The Internal Revenue Service (IRS) provides a toll-free help line for taxpayers to call in and get answers to questions as they prepare their tax returns. In recent years, the IRS has been inundated with taxpayer calls and has redesigned its phone service

15. ## chemistry check if my answers are right. drbobzz

Acetylene gas(c2h2) is used in welding. During one job a welder burns 48.0 g of acetylene. Using a balanced equation for the complete combustion of acetylene calculate the following. Equation 2C2H2 + 5O2 ---> 4CO2 + 2H2O A) the mass of oxygen used B) the

16. ## social studies

1. which of the following staments would describe a reason why the confederation government was unable to help georgia solve its problems with the indians? it was too busy fighting foreign wars. the president would veto any action it took. it was a week

asked by someone help i am new
17. ## Physics

A block is at rest on an inclined plane. 63 kg µs = 0.47 èc Find the critical angle, èc, at which the block just begins to slide. Answer in units of ◦

18. ## linear algebra

The weather on any given day in a particular city can be sunny, cloudy, or rainy. It has been observed to be predictable largely on the basis of the weather on the previous day. Specfically: if it is sunny on one day, it will be sunny the next day 1/2 of

19. ## statistics

the hospital paper filing system contained 20,890 records. A total of 456 were identified as misfiled. What is the filing accuracy rate for the system? What is the percentage of misfiled records?

20. ## physics

An egg rolls off a kitchen counter and breaks as it hits the floor. The counter is 1.0 m high, the mass of the egg is about 50 g, and the time interval during the collision is about 0.010 s. How large is the impulse that the floor exerts on the egg? use

21. ## Calculas

Johnny is designing a rectangular poster to contain 15 in^2 of printing with a 5-in margin at the top and bottom and a 3-in margin at each side. What overall dimensions will minimize the amount of paper used?

22. ## Physics

As part of a safety investigation, two 1200kg cars traveling at 24m/s are crashed into different barriers. Find the average force exerted on the car that hits a concrete barrier and takes 0.16s to stop.

23. ## Physics

A 4.0-kg block extends a spring 16 cm from its unstretched position. The block is removed and a 0.50-kg body is hung from the same spring. If the spring is then stretched and released, what is period of oscillation?

24. ## Chemistry

The tomato is dropped. What is the velocity, v, of the tomato when it hits the ground? Assume 94.7% of the work done in Part A is transferred to kinetic energy, E, by the time the tomato hits the ground.

25. ## Physics

A 24g ball of clay traveling east at 3.3m/s collides with a 33g ball of clay traveling north at 2.4m/s . 1a)What is the movement direction of the resulting 57g blob of clay? 1b)What is the speed of the resulting 57g blob of clay?

26. ## intro to computers

You call the help desk to report a problem you are having on your computer. The technician asks you what operating system you are running. You know it is Windows 7 but you forget which version. How can you find out?

27. ## Algebra 1

Describe how the graphs of y =IXI nand ym = IXI -15 are related. 1- the graphs have the same shape,. The y intercept of the 2nd graph is -15 2-the graphs have the same y intercept. The 2nd graph is steeper than y= absolute x 3- the 2 graphs are the same 4-

28. ## Science

A geologist working in a national park finds a minerals. He is carrying a kit that contains a penny, a hand lens, a piece of tile, a geologic hammer, and a jackknife. Describe the geologist can use these items to determine some of the minerals

29. ## Wilton Manor Elm

Along with the flowers, Samantha bought 4 packages of glass beads and 2 vases. The vases cost \$3.59 each and the total sales tax was \$1.34. The total amount she paid was \$28.50, including sales tax. Explaing a stratehy you would use to find the cost of 1

30. ## chemistry

63.0 mL of a 1.30 M solution is diluted to a total volume of 248 mL. A 124-mL portion of that solution is diluted by adding 173 mL of water. What is the final concentration? Assume the volumes are additive.

31. ## statistics

The HIM department has 200,000 active medical records and the department received 12,081 records requests during the year. The QI indicator of the HIM department is Eighty-five percent of records requests will be located within 15 minutes. Of the 12,081

32. ## Physics

A woman runs up a flight of stairs. The gain in her gravitational potential energy is 6500 J. If she runs up the stairs at half the speed, what is her gain in gravitational potential energy?

33. ## quantitative maths

in a race A beats B by 100m. the ratio of their speeds is 5:4 . what is the length of the racecourse?

34. ## AP US History

Evaluate the extent to which the opposition of slavery contributed to maintaining continuity as well as fostered change in United States from 1776-1856 Please give some documents, events or some topics to help me write this essay

35. ## math

The radioactive isotope sodium-24 is used as a tracer to measure the rate of flow in an artery or vein. The half life of sodium-24 is 14.9 hours.Suppose that a hospital buys a sample of sodium-24 a. how much of the sample will remain AFTER 48 Hours? b. How

36. ## Math

An object is dropped from a balloon from a height of 500m. (a) How long does it take to reach the ground? (b) If the object has an initial velocity of 12m/s, how long does it take to reach the ground? How far will it fall in 5 secnds?

37. ## Trig (math)

1.) Write the complex number in trigonometric form r(cos theta + i sin theta) with theta in the interval [0°, 360°). 9 sqrt 3 + 9i 2.) Find the product. Write the product in rectangular form, using exact values. [4 cis 30°] [5 cis 120°] 3.) [4(cos

38. ## Physics

A spaceship of mass 2.0×106kg is cruising at a speed of 4.6×106m/s when the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 5.2×105kg , is blown straight backward with a speed of 2.2×106m/s . A second piece,

39. ## physics

Two artifacts in a museum display are hung from vertical walls by very light wires. Wire T1 is horizontal from the left wall and goes to a center weight of 177N and wire T2 is at a 53 degree angle with the right wall heading from right to left downwards

40. ## Algebra

Our basketball team has finished 80% of its season, during which we won 40% of the games we played. What percent of the remainder of our games must we win in order to finish the season with the same number of wins as losses?

41. ## Chemistry

estimate Delta H for the following reaction C2H4 (g)+3O2(g)→2 CO2(g)+2 H2O(g) So we have (4) C-H bonds and (1) C=C bond or (H = 4*414 + 615= 2271) For oxygen, (3) O=O bonds or (H = 3*502=1506) 2CO2 is (2) O=C=O (H=730*4=2920) 2H2O is (2) H-O-H or

42. ## math ratio and rate problems

6 cars, 10 trucks, 14 SUV, 15 minivans. If 150 vehicles passed Luann, how many more minivans than cars would you expect to pass her?

43. ## Chemistry

The titration reaction of a solution containing 1.00 g mixture of Na2CO3 and K2CO3 with HCl shows that there are 8.50x10^-3 moles of C03-2. Find the weight percent of Na2CO3 and K2CO3 in the mixture. Please Help!!

44. ## english

I need help with finding some poetry devices in the poem: Wordsmith by Susan young. I already have some, but would love a second opinion.

45. ## math ratio and rate problems

There are 6 cars, 10 trucks, 14 SUV,15 minivans. At this rate how many minivans would pass Luann if 60 vehicles passed her?

46. ## Physics

Electrons in an oscilloscope are deflected by two mutually perpendicular electric fields in such a way that at any time t the displacement is given by x = Acos(t), y=Acos(t+). Describe the path of the electrons and determine its equation (a)

47. ## chemistry

a radioisotope is called a tracer when it is used to

48. ## Physics

A sign that weighs 670N is mounted at the end of a 2.00-m long rod of negligible weight. The supporting cable is connected at angle theta=30deg to the center of the rod. What is a) the tension T in the supporting cable, and b) the horizontal and vertical

49. ## accounting

Amazon Appliance Company has three installers. Larry earns \$355 per week, Curly earns \$460 per week, and Moe earns \$585 per week. The company's SUTA rate is 5.4%, and the FUTA rate is 6.2% minus the SUTA. As usual, these taxes are paid on the first \$7,000

One of the reactions involved in the smelting of copper sulfide ores involves copper (I) oxide and copper (I) sulfide: 2Cu2O2 + Cu2S ---> 6Cu + SO2 Assuming that 35.00 g of copper (I) oxide is heated with 25.00 g of copper (I) sulfide A) determine which

51. ## Chemistry

Vitamin K is involved in normal blood clotting. When 2.32 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 7.78 °C. The freezing point and Kf constant for camphor can be found here. Calculate the molar

52. ## physics

: stand with one arm and side of one foot pressed agaonst a wall.can you raose the other leg side ways? if not,why not

53. ## physics

A staging that weighs Wstaging supports a painter weighing 160 N. The reading on the left scale is 700 N and the reading on the right scale is 620 N. 700 N 620 N What is the weight of the staging? Answer in units of N

54. ## math

Two trains are on the same track a distance 100 km apart heading towards one another, each at a speed of 50 km/h. A fly starting out at the front of one train, flies towards the other at a speed of 75 km/h. Upon reaching the other train, the fly turns

55. ## math

Flying with the wind, a plane traveled 570 miles in 3 hours. Flying against the wind, the plane traveled the same distance in 5 hours. Find the rate of the plane in calm air and the rate of the wind. Rate of plane ______mph Rate of wind ________mph

56. ## Math

At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle

57. ## Math

The sum of the squares of three consecutive whole numbers is 77. Form a quadratic equation and hence solve it to determine the numbers. (Hint: let the three consecutive numbers be x, x+1 and x+2)

58. ## math

how long is the groove on one side of a long play(33 1/3 rpm) phonograph record? assume there is a single recording and the author (beginning) groove is 5.75 inches from the center and the inner(ending) groove is 1.75 inches from the center. the recording

59. ## Business Mathmatics

Fandango Furniture Manufacturing, Inc., has 40 employees on the assembly line, each with gross earnings of \$325 per week. a. What are the total social security and Medicare taxes that should be withheld from the employees' paychecks each week? Social

60. ## math

A grocery store sells snacks by weight. A six ounce bag of mixed nuts costs \$3.60. Predict the cost of a ounce bag

61. ## Intro-Physics Help Please

A spaceship lands on a new planet. the crew decides to measure the speed of sound in the planets atmosphere. taking a tube with a length of 50 cm, they find that one resonant frequency occurs at 2,520 Hz, and the next resonant frequency at 2,940 hz. what

62. ## ALG 1

Identify the GCF of 12a4b3 + 8a3b2

63. ## Pre-Calc

At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle

64. ## Physics

A uniform rod pivoted at one end (point O) is free to swing in a vertical plane in a grav- itational field, held in equilibrium by a force F at its other end. The rod of length 7 m and weight 4.7 N makes an angle 39◦ with the hor- izontal and the force

65. ## chemistry

100.0 mL of a dilute NaCl(aq) solution is heated in an open beaker. After 15 minutes the burner is turned off. Which of the following is true of the resulting solution? a more concentrated than the initial solution b less saturated than the initial

66. ## physics

Two artifacts in a museum display are hung from vertical walls by very light wires. Wire T1 is horizontal from the left wall and goes to a center weight of 177N and wire T2 is at a 53 degree angle with the right wall heading from right to left downwards

67. ## Psychology

Hello, I am in need of help with a psychology question. Here is the information that was provided: Psychologists use field observations, laboratory experiments, and other methods to gather data relevant to their research questions. When sufficient data

68. ## problem solving

suppose one had 100 yards of fencing to enclose a garden. What shapes could be enclosed? What are the dimensions of each and what is the area? make a chart.

69. ## English

1. If you hurry up, you will catch the bus. 2. If you hurry up, you can catch the bus. 3.If you hurry up, you may catch the bus. 4. If you hurry up, you shall catch the bus. (Are they all grammatical?)

70. ## trigonometry

At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle

71. ## math

The Suarez family paid \$15.75 for 3 movie tickets. How much would they have paid for 12 tickets.

72. ## health

How might ethical issues alter your way of conducting change

73. ## O-Chem

Amide + Acetone -> ammonia + Acetone Enolate Weaker acid: Conjugate Base: Species that predominate at equilibrium(2): Please Help!

74. ## problem solving

a landscaper bought some decorative cement blocks from a landsccaping supplier. the supplier charged 5% sales tax and the total came to \$315. without the tax, the landscaper could have bought 6 more blocks for the same total cost. how many blocks did the

75. ## problem solving

lily estimate that she was able to answer correctly 35 question out of 40 questions in a test. however, she only scored 75% for the test. find the difference between the actual number of questions that answer correctly and the estimated number of question

76. ## Chem-Diprotic Acid

Ascorbic Acid is an organic diprotic acid, H2A, that is found in many natural materials. KA1=7.94x10^-5 and KA2=1.62x10^-12. If you start with a 0.75 M solution of H2A, what is the concentration of ALL species in the solition at ph=3.8? I have no idea how

77. ## physics

What is the gravitational acceleration on a planet where a 2.0 kg mass has a weight of 16 N on the planet`s surface?

Hello, I had to answer to some questions on the this paragraph of 'The Cask of Amontillado' by Edgar Allen Poe. The paragraph: The thousand injuries of Fortunato I had borne as I best could, but when he ventured upon insult I vowed revenge. You, who so

79. ## Physics

A roller coaster goes 40-m along a section of track sloping 10 degrees below the horizontal, followed by a 13-m section sloping upward at 6 degrees, followed by an 26-m section of level track. Find the net displacement in m.

80. ## Physics

A 7.68 m, 132 kg uniform ladder rests against a smooth wall. The coefficient of static fric- tion between the ladder and the ground is 0.642, and the ladder makes a 48.4◦ angle with the ground. How far up the ladder can a 528 kg person climb before the

81. ## math

A medical researcher wanted to determine the effect of pH (a measure of alkalinity or acidity, with pure water having a pH of 7) on the growth of a bacteria culture. The table below gives the measurements of different cultures, in thousands of bacteria,

82. ## math

The fuel efficiency for a certain midsize car is given by E(v)= -0.016v^2+1.408v+3.8, where E(v)is the fuel efficiency in miles per gallon for a car traveling v miles per hour. What speed will yield the maximum fuel efficiency? _______mph. What is the

83. ## Economics- IPO help

Does an IPO seem like a good idea for a business? What kind of things would you say in an SEC statement to demonstrate that your business? So would I say that the business is very successful and on its way in expanding?

84. ## ethic

Disloyalty, greed, merciless mess prejudice, and intolerance are examples of

85. ## math

Gina's art teacher mixes 9 pints of yellow paint with 6 pints of blue paint. Did Gina use the same ratio of yellow paint to blue paint instructed by her teacher.

86. ## Calculus

Find the average value of the function f(x) 8x^2-9x+8 on the interval [3,5]. Find the value of the x-coordinate at which the function assumes it's average value The average value is ? the x-coordinate is ? Please help and showing work is much appreciated.

87. ## ratio and rates

Gina's art teacher mixes 9 pints of yellow paint with 6 pints of blue paint to create green paint. Gina mixes 4 pints of yellow paint with 3 pints of blue paint.

88. ## Economics help

Does an IPO seem like a good idea for a business? What kind of things would you say in an SEC statement to demonstrate that your business? So would I say that the business is very successful and on its way in expanding?

The following data represent the asking price of a simple random sample of homes for sale. Construct a 99% confidence interval with and without the outlier included. Comment on the effect the outlier has on the confidence interval. Here is the information:

90. ## Math

A ladder 10 ft long leans against a wall. The bottom of the ladder is 6 ft from the wall. How much would the lower end of the ladder have to be pulled away so that the top end would be pulled down by 3 ft?

91. ## Chemistry

A student was isolating copper metal from a copper salt. If the student started with 1.255g of copper (II) sulfate how many grams of copper solid would you expect them to recover?

92. ## Calculus

Lines tangent to the curve y-1=2x^2+3x pass through the point A(2,-1). Find the x-coordinate(s) of the point(s) of tangency. The answer is 2+2^1/2, 2-2^1/2, I just don't know how to get there. Please help! Thank you!

93. ## calculus

Previously asked: the length of a rectangular prism is increasing at a rate of 8 cm/s, its width is increasing at a rate of 3 cm/s, and its height is increasing at a rate of 5 cm/s. when the length is 20 cm, width is 10 cm, and height is 15 cm, how fast is

94. ## calculus

First, the bond pays 96 + 7 t per year for 10 years. Second, the interest rate is 5.25% compounded continuously. Round your answer to the nearest cent. Find the present value?

asked by Dat nguyen
95. ## Math - Calculus

If 75100 dollars is deposited in an account for 13 years at 5.35 percent compounded continuously , find the average value of the account during the 13 years period. The average value in the account is ? ** im alittle confused in how to find the average

96. ## Psychology

Hello, I am in need of help with a psychology question. Here is the information that was provided: Psychologists use field observations, laboratory experiments, and other methods to gather data relevant to their research questions. When sufficient data

97. ## Chemistry

A 500 mL flask has a measured volume of 586.0 mL. A 0.608g sample of an unknown vapor occupies the flask at 373K at a pressure of 0.981atm. Assume the vapor behaves ideally. What is the molecular weight of the unknown vapor?

98. ## Chem

Determining oxidation numbers for remaining atoms in HIO3, H3PO4, Ba(OH)2, and BaPO4 I have no idea if I am doing this right I don't even know how to do this For HIO3 I added the charges as +1 and 3(-2) which i got -5 then I did it the similar way for the

99. ## Math

Find the exact value: 1.) cos^-1(sin(pi/2)) 2.) arccos(cos(7pi/2))

100. ## linear approximation

a) Find the linear approximation of the function f(x)=4cos(3x^2) near x = 0 b) Use the approximation found in part (a) to estimate the value of f(pi/20)

101. ## math 211(linear algebra)

uppose that the sequence x0, x1, x2... is defined by x0 = 4, x1 = 2, and xk+2 = 4xk+1+5xk for k≥0. Find a general formula for xk. Be sure to include parentheses where necessary, e.g. to distinguish 1/(2k) from 1/2k. .

102. ## L'Hopitals Rule

5) Use the L’Hopital’s method to evaluate the following limits. In each case, indicate what type of limit it is ( 0/0, ∞/∞, or 0∙∞) lim x→2 sin(x^2−4)/(x−2) = lim x→+∞ ln(x−3)/(x−5) = lim x→pi/4 (x−pi/4)tan(2x) =

103. ## Calc I

Find an equation of the tangent to the curve at the given point. y=4(sinx)^2 point: pi/6,1) So I took the derivative of the original function to get: y' = 8cosx*sinx I then chose a point to plug in to find a point for the slope. i picked pi/6 because i

104. ## Science

What will be the effect on litmus paper when methyl amine is used?

105. ## math

The Martin family's truck gets an average of 25 miles per gallon. Predict how many miles they can drive using 7 gallons of gas.

106. ## Interdependence

How would a world with less interdependence affect my life. I don't really understand how it would affect me directly. Is it like the things we import, would have to made in the U.S so then it would be more expensive?

107. ## Math - Differentiate

I just need an explanation of hoe to solve the following: f(x)= ln (x^3 + 5)+ 6x

108. ## problem solving

lily estimate that she was able to answer correctly 35 question out of 40 questions in a test. however, she only scored 75% for the test. find the difference between the actual number of questions that answer correctly and the estimated number of question

109. ## Algebra 1

Write an equation for the linear function f with the following values: f (0) = 2 and f (2) = 8

110. ## solve

A long distance trucker traveled 168 miles in one direction during a snow storm. The return trip in rainy weather was accomplished at double the speed and took 3 hours less time. What is the speed going?

111. ## ilays high school

what is a volume 2 mole of hydrochloric acid will neutralize 25 cent meter cubic of sodium carbonate solution

asked by dalmar falaash
112. ## English..

How does a gun represent fear? Hoe does pearls represent hope? How does a key represent hope?

113. ## Calc I

Find the derivative of y=(x^2 + x^3)^4 What I got: 4(x^2+x^3)^3 * (2x+3x^2) The correct answer: 4x^7(x+1)(3x+2) How did they get that?

114. ## physics

a metre ruler balances itself at 58 cm mark when a weight of 20 gf is suspended from one end. what is tge weight of the metre ruler?

115. ## Advance Algebra

The concentration (in milligrams per liter) of an antibiotic in the blood is given by the geometric series: A + Aekt + Ae2kt + + Ae(n − 1)kt where A is the number of milligrams in one dose of the antibiotic, n is the number of doses, t is the time

116. ## Social Studies

What four major battles of the civil war was fought in Tennessee?

117. ## chemisty

convert .98L of N20 gas at STP to moles

118. ## Math

Jeremy has 19 coins of 2 different values. The total value of the coins is \$1.00. What are the coins? How many of each coin does he have? Explain please

119. ## physics

an object explode and a to 2 kilograms piece moves north at 4 m/s and a 4 kilograms piece moves East at 1.5 meters per second. What is the momentum of the third piece? What is the mass of the third piece if it moves at a speed of 4 meters per second?

120. ## Chemistry

A student analyzing 2.000g of Epsom Salt found that it contained 39.0% by mass water. What is the hydration number for this sample?

121. ## English

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

122. ## Physics

What air temperature will feel four times as warm as 0 °F?

123. ## Maths

In figure A and B are on the same side of line L. AD perpendicular to l and BE perpendicular to l. If C is the midpoint of AB proove that CD = CE.

124. ## science

Baseball of 0.15 kg is thrown upward at an initial velocity of 35 m/s . tow seconds later a 20 g bullet is fired at 250 m/s into the rising baseball . How high will the combined bullet and baseball rise

125. ## Math

Below is a table showing the cost lawn maintenance service charges for various commercial and retail properties. Cost of lawn maintenance (\$) 640, 250, 500, 640, 720, 640, 250, 720 A. Find the mean absolute deviation for the lawn maintenance company B.

126. ## math

At a swim meet, a parent is videotaping his son from a seat in the stands that is 20 meters past the starting line and 8 meters away from his son's lane. Let x represent the distance the son has swum. a. Write x as a function of (theta). b. At what angle

127. ## Math

Factor: 22n2 + n - 5

128. ## Finance

A family purchased a new ski boat for \$20,000. The loan agency required a down payment and financed the balance for 36 months with an APR of Determine the total finance charge and monthly payment for the loan.

129. ## World History

Can anyone plsease share something about politics in the Minoan civilization?

130. ## problem solving

speed of the car is 47.52 km/hr. a lorry wheel is rotating at 400 RPM. what is radius (in cm) of a lorry wheel has a same speed with the car.

131. ## physics

Define Newton's first law .

132. ## Physics

A block is at rest on an inclined plane. The mass is 44 kg. µs = 0.54 Find the critical angle, θc, at which the block just begins to slide. Answer in units of ◦

133. ## algebra

to conduct a scientific experiment, students need to mix 90 millimeters of a 3% acid solution. They have a 1% solution and a 10% solution available. How many millimeters of a 1% solution and of the 10% solution should be coming to produce 90 millimeters of

134. ## calc

3. If f(x, y)=5 − 4x3 + 8y2, find a unit vector ~u for which the directional derivative D~uf(1, 1) is zero. im not sure how to do this one

135. ## chem

convert .98L of N20 gas at STP to moles

136. ## Physics

. How much potential energy does the 2.5 kg rock sitting on an 18 –meter high cliff have?

137. ## chemistry

What is the mass of 4.3 × 10 to the power of15 atoms of nickel (Ni)?

138. ## calc - yet another

If C is the curve y = x^2/2 + 1 from (0, 1) to (2, 3), then the line integral over C 3x ds = sorry for all the questions!

139. ## Calculus

L'hopital's question below: lim x -> 0 from the positive direction of ( 5^(sin(x)) - 1 )/ (x)

140. ## Pre-Calc

Log(x-6) +Log(x+3)=1

141. ## English..

Why does a gun represent fear?

142. ## Math

Find the valu eof accros (5/6). Then, round your answer to four decimal places. I know that the answer is 0.5856 but how would I round that? Thanks!

143. ## Algebra

The table below shows the opening value of a stock on the first day of trading in various years. Write a 4th degree model for the data and use the model to estimate the value on the first day of trading in 2010. (1994,2814) (1996,3603) (1998,5429)

144. ## Factoring

Factor: 14z2 - 49z + 35 I got 7(z^2-7z+5) but I got it wrong? Please correct me.

145. ## art history

Any help on this question? Which of the following pairs of biblical symbols stand for divinely sanctioned authority? a. lamb and dove b. nimbus and orant figure c. keys and chi-rho symbol d. palm leaves and shepard I'm really not sure so any direction or

146. ## math 104

A rocket engine, 2.44 cross product 10−5 watts/cm2

147. ## Pre Calc

Log(x-6) +Log(x+3)=1 Solve for x I think it has no solution but why?

148. ## chemistry

What is the volume of solution prepared when 6g of acetic acid is dissolved to prepare 0.25M solution

149. ## problem solving

speed of the car is 47.52 km/hr. a lorry wheel is rotating at 400 RPM. what is radius (in cm) of a lorry wheel has a same speed with the car

150. ## Math word problem

Jeremy has 19 coins of 2 different values. the total value of the coins is \$1.00. What are the coins? How many of each coin does he have?

151. ## MATH

SOLVE FOR X THANK U LIFESAVERS Solve for x Log(x-6) +Log(x+3)=1

152. ## physics

Newton first law provides the measure of ???

153. ## Math

(6.3 * 10^2)^-6 1/(6.3 * 10^2)^6 (divide and the sign flips to a positive value) On the calculator I get 1.59 * 10^-17 I have no idea how though it is correct

154. ## Chemistry; stoichiometry

Determine the theoretical yield of silver that is produced if the other product is Copper(II) Nitrate. Copper that reacted: 0.3180 This is what I had: 0.3180g Cu x 1mol Cu/63.5g Cu x 2mol Ag/1mol Cu x 107.87g Ag/1mol Ag = 1.079g Ag (Set up in factor label

155. ## Algebra 1

Graph y= absolute x -2

156. ## social studies

a description on Guyana national flag

157. ## calc

4. Compute ∂z/∂r + ∂z/∂s if z = sin u cos v, u = (r + s)2, and v = (r − s)2.

158. ## calc

If D is the solid region in the first octant bounded above by the paraboloid z = 1 − x2 − y2 and below by the xy-plane, the volume of D is: so i set this up integrating over dz dr dtheta and got pi/2 but the answer i spi/8

159. ## science

A 7E+3 kg object is 9.29 m away from a 4.7E+8 kg object. What is the gravitational force between the two objects?

160. ## Calculas

an open box is to be made from a square piece of cardboard whose sides are 19 inches long,by cutting squares of equal size from the corners and bending up the sides. Determine the size of the aquare that is to be cut out so that the volume may be a

161. ## Social studies

Why were the greek city states open to an attack by Philip II of Macedonia?

162. ## Pre Cal

Solve for x Log(x-6) +Log(x+3)=1

163. ## ashford university

Theories of personality wk 1 assignment I don't understand it

164. ## Math

solve 7 1/2 - 3 5/6

165. ## Chemestry

To fnd the empirical formula i have to convert the percent in g first, or a take the date in percent?

166. ## Calculus

Find the area of the region bounded by the curves y=12-x^2 and y=x^2-6. Hint:The answer should be a whole number.

167. ## Psychology Questions

I need help with a couple Psychology questions. 1. For most people, the ability to create language originates in the________. A. hypothalamus B. thalamus C. right hemisphere D. left hemisphere **My answer=D 2. Facts leanred in classes at school become part

3x+10=1

169. ## Algebra

The table below shows the opening value of a stock on the first day of trading in various years. Write a 4th degree model for the data and use the model to estimate the value on the first day of trading in 2010. (1994,2814) (1996,3603) (1998,5429)

170. ## Healthcare

How does the law protect patient rights in managed care?

171. ## Pre-Cal

Log(x-6) +Log(x+3)=1 Solve for x thank u

172. ## problem solving

a landscaper bought same decorative cement blocks from a landscaping supplier. the supplier charged 5% sales tax and the total came to \$315. without the tax, the landscaper could have bought 6 more blocks for the same total cost. how many blocks did the

173. ## problem solving

a nine digit number is formed using each of the digit 1,2,3,...,9 exactly once. for n= 1,2,3,...,9,n divides the first n digits of the number. find the number.

174. ## problem solving

what triangular region with p=100 has the most area? find all five triangular regions with p=100 having integer side and integer area . such as 29,29,42

175. ## Calc I

I am having trouble taking the derivative of the following: t(4-t^2)^(1/2) I can't decide if you need to use the product rule or not. What I did is used the PR to get (4-t)^1/2)*1t^2*(4t-1)^(-1/2) Is this correct?

176. ## calc

Give the equation of a plane containing the points (1, 0, 0) and (1, 2, 1) and parallel to the line whose equations are x = y, z = so i found n to be then i used the equation n(r-ro) and got y-x+2z. the answer is x-y+2z =1. how do they get =1 and why is it

177. ## calc

I have another question (studying for finals, haha) Let ~r(t) = et cost ~i + et sin t~j be parametric equations of a curve C. Find the length of C from t = 0 to t = π. so the equation I am using is the integral from a to b (in thsi case 0 to pi) of the

178. ## rela

need to do a shoe box diorama on an important event on Jean Fleury so I chose the attack on the Spanish vessels what would be things i would need?? how can i make it creative??

asked by Reina Bonilla
179. ## Math

For a savings account paying 2.4% in which interest is compounded MONTHLY. FIND THE Time needed to double the initial investment of 10000 dollars. The answer is 28.9 years but WHY