# Questions Asked onNovember 8, 2013

1. ## Algebra 1b!

Could you guys check my answers? 1. Graph the function and identify the domaine and range. y=-1.5^2 Domain; (-,+) Range; (-,0) ( my answers.) 2.How is the graph of y=-2x^2-5 different from the graph of y=-2x^2 It is shifted units up it is shifted 5 units

2. ## Statistics

A local eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 30 minutes. The

3. ## Chem

In a 1.0× 10–2 M solution of CH3NH3Br(aq), identify the relative molar amounts from highest to lowest for : -Br- -OH- -CH3NH3+ -HBr -CH3NH2 -H3O+ -H2O

4. ## Calculus Antiderivative Problem

An object moves along a coordinate line with acceleration a(t)=(t+2)^3 units per second per second. a). The initial velocity is 9 units per second. The velocity function is v(t) = b).The initial position is 2 units to the right of the origin. The position

5. ## maths

The cash price for a car was \$7640. Gurtaj bought the car on the following terms : A deposit of 20% of the cash price and 36 monthly payments of \$191.60 . Calculate the total amount Gurtaj paid.

6. ## Algebra

Write the decimal .041 as a percent.

7. ## Physics

Have no idea how to do this! Determine the weight of a 1768.0-kg car which is moving at a speed of 26 m/s.

8. ## physics

Suppose a ball of putty moving horizontally with 1kg.m/s of momentum collides and sticks to an identical ball of puffy moving vertically with 1 kg.m/s of momentum. Why is their combined momentum not simply the arithmetic sum, 2 kg.m/s?

9. ## Pre-Alg

(Check my work?) 1.) Use arrow notation to write a rule that describes the translation of a point from (5,6) to (6,11) A.(x,y) -> (x + 1, y + 5) B.(x,y) -> (x - 1, y - 5) C.(x,y) -> (x - 1, y + 5) D.(X,y) -> (x + 1, y - 5) 2.) Point A(6,-2) is reflected

10. ## CHEM

Can you please check my work? I got -4.3KJ/mol If this is not right can you tell me what I am doing wrong? Thank you! Questions. 1.a. Use Hess's Law and the measured mean enthalpy changes for the NaOH-HCl and NH3-HCl reactions to calculate the enthalpy

11. ## math

a wire is 36 m long is cut into two pieces , each piece is bent to form a rectangle which is 1 centimeter longer than its width. how long should each piece be to minimize the sum of the areas of the two rectangles?

12. ## PRE-CALC HELP

Two boats leave the same port at the same time. One travels at a speed of 31 mi/h in the direction N 50° E and the other travels at a speed of 20 mi/h in a direction S 70° E (see the figure). How far apart are the two boats after one hour? (Round your

13. ## Algebra 1 (Reiny or Kuai)

Write a rule in function notation for each situation. 1. Airport parking is available for \$8 per day A: f (x) = 8x? 2. A glass of iced tea costs \$2.00. Refills cost \$0.25 each. A: ?

14. ## Math

If one factor of 56x^4y^3-42x^2y^6 is 14x^2y3,what is the other factor

15. ## PRE-CALC HELP

A communications tower is located at the top of a steep hill, as shown. The angle of inclination of the hill is 58°. A guy wire is to be attached to the top of the tower and to the ground, 150 m downhill from the base of the tower. The angle α in the

16. ## PRE-CALC HELP

1) Two boats leave the same port at the same time. One travels at a speed of 27 mi/h in the direction N 50° E and the other travels at a speed of 22 mi/h in a direction S 70° E (see the figure). How far apart are the two boats after one hour? (Round your

17. ## Calculus

If each edge of a cube is increasing at the constant rate of 3 cm per sec how fast is the volume increasing when X, the length of an edge, is 10 cm long?

18. ## Chem

I got part a but part b I'm having trouble with I keep getting 56.2mL. I'm not sure what the next step is really to find part b. A. How would you prepare 250 mL of a 0.150 M solution of CoCl2 from solid CoCl2 and distilled water? Dissolve 4.87 grams solid

19. ## science

earth appears to be mostly blue when viewed from space because it is mostly covered by ? a) water b) oxygen c) carbon dioxide d) ozone

20. ## statistics

Find the indicated z score. The graph depicts the standard distribution with a mean 0 and standard deviation 1. 0.945 My answer is 1.6901 but I am not sure if it is correct.

21. ## Quantitative Analysis

Decision rules in quantitative analysis are set by...? A. Conventional Wisdom B. Researchers C. Mentors D. Deans (I feel like the answer is B...just want to be sure - thanks!)

22. ## math

in an ap the difference is between the 8th and 4th term is 20 and the 8th term is one and the half times the fourth term what is the common difference

23. ## Physics pls anyone can help me? its urgent

Four charges are arranged at the corners of a regular tetrahedron (a pyramid with four sides that are identical equilateral triangles). The charges are 1 Coulomb each, and the sides of the tetrahedron are all 1 meter. How much energy in Joules is required

24. ## Physics

A potter’s wheel of radius 53.13 cm and mass 106.4 kg is freely rotating at 47.1 rev/min. The potter can stop the wheel in 5.65 s by pressing a wet rag against the rim and exerting a radially inward force of 66.2 N. What is the angular acceleration of

25. ## supply chain

Suppose that a manufacturer of men's shirts can produce a dress shirt in its Houston, Texas, plant for \$8 per shirt (including the cost of raw materials). Chicago is a major market for 100,000 shirts per year. The shirt is priced at \$15 at Houston.

26. ## Chemistry Check

Just want to make sure that my thought process is right on this one. 5 compounds: n-butyl chloride n-butyl bromide sec-butyl chloride tert-butyl chloride and crotyl chloride Each is reacted with NaI (SN2?) and AgNO3 (SN1?) And we have to rank the reaction

27. ## Calculus Antiderivative Problem

A car traveling at 46 mph decelerates at 21 feet per second per second. a). How long does it take for the car to come to a complete stop? b). What distance is required to bring the car to a complete stop? An

28. ## science

the force of gravity between two objects decreases as the distance between the two objects increases. true or false

29. ## biology

many human-caused losses of biodiversity, such as habitat destruction and of invasive species. are there any natural events that could alter the diversity index?

30. ## Physics

A puck of mass .30 kg is sliding along an essentially frictionless patch of ice at 6.0 m/s. It encounters a rough ice patch with a coefficient of kinetic friction of .10. How long will it take for the puck to stop?

Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell

Boxes are labeled as containing 500g of cereal. The machine filling the boxes produce weights that are normally distributed with standard deviation 12g. 1) Suppose a law states that no more than 5% of a manufacturer's cereal boxes can contain less than the

33. ## Physics

A 0.5 kg air-hockey puck is initially at rest. What will its kinetic energy be after a net force of 0.8 N acts on it for a distance of 0.5 m?

Four charges are arranged at the corners of a regular tetrahedron (a pyramid with four sides that are identical equilateral triangles). The charges are 1 Coulomb each, and the sides of the tetrahedron are all 1 meter. How much energy in Joules is required

35. ## chemistry

Answer the question(s) below about the following reaction. 2H2O2 (l) → 2H2O(g) + O2(g) If 50.0 grams hydrogen peroxide produce 15.0 g oxygen, what is the percent yield for this reaction?

36. ## Statistics

A researcher performs a hypothesis test to test the claim that among girls aged 9-10, the mean score on a particular aptitude test differs from 72, which is the mean score for boys of the same age. Data were collected from a random sample of 43 girls aged

37. ## Physics

Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B. Neglecting any gravity effects,

38. ## Physics

Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B. Neglecting any gravity effects,

39. ## Algebra 1 (Reiny or Kuai)

Is the linear equation 3x - 2 = y in standard form? Explain.

1. At midnight, the temperature, t, is 13 degrees below zero. If the temperature is expected to rise 5 degrees for the next several hours, what equation could you use to determine what temperature it will be after h hours? T = -13h + 5 H = 5t + 13 T = 5h

41. ## Physics

Example 1: (Rock A) is thrown against a larger stationary rock(Rock B). considering the following possibilities... 1. Rock A bounces off of Rock B 2. Rock A splits into two pieces off of Rock B 3. Rock A explodes into many pieces off of Rock B What factors

42. ## chemistry

In hydrated copper sulfate, the chemical formula is CuSO4.5H2O, while that of hydrated cobalt(II) chloride is CoCl2.6H2O. I want to ask how to determine the number of moles of water is needed to hydrate any salt. Is there a pattern or formula?

43. ## Health (Ms. Sue)

1. Describe the dangers of binge drinking. A: There are many dangers of binge drinking. For example, binge drinking causes the area of the brain that control breathing and heart rate to become dangerously depressed. The brain and the heart may even stop

44. ## English

1. I demanded that he should give me the money. 2. I suggested that we should go on a picnic tomorrow. 3. He insisted that she should join the club. 4. I demanded that he give me the money. 5. I suggested that we go on a picnic tomorrow. 6. He insisted

45. ## Physics

A 20.5 N weight is held in the outstretched hand of a person with a shoulder-to-elbow length of 30.0 cm and an elbow-to-wrist length of 24.0 cm. The center of the weight is 5.5 cm from the person's wrist. Determine the magnitude of the torque about the

46. ## Spanish (need help quickly)

I'm having trouble with indirect object pronouns in Spanish. Which indirect object pronoun would go in the blank? ¿Quién _____ ayuda a ti con los estudios? (This one I am thinking te) No_____ decimos mucho a nuestros padres. (For this one I was thinking

47. ## Quantitative Analysis

Under conditions where a large sample is used in experimental research, and "power" of a statistical test is maximized, it is possible to have statistically significant results, yet a fairly small...? A. Ethical concern B. Effect size C. Set of assumptions

48. ## Statistics

In creating a frequency distribution table, which of the following statement is not a basic rule to follow? a) Choose classes that cover the smallest and largest values. b) Make certain that each item can go into only one class. c) As a general rule, use

49. ## physics

Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell

50. ## math

What is the 32nd term of the arithmetic sequence where a1 = -32 and a9 = -120?

51. ## Kinematics algebra question - Physics 11

I don't know how to even approach this... It's suppose to be on my physics test. A huntsman fires a gun pointing at a monkey hanging on the branch of a tree. The huntsman and the base of the tree are on a flat horizontal. At the moment the huntsman fires

52. ## chem

The following equilibrium pressures were observed at a certain temperature for the reaction. N2(g) + 3 H2(g) 2 NH3(g) partial pressure of NH3 = 3.2 ✕ 10−1 atm partial pressure of N2 = 1.6 ✕ 10−2 atm partial pressure of H2 = 4.9 ✕ 10−2 atm

53. ## Physics

What is the kinetic energy of a 1100 kg sports car traveling down the road with a speed of 22 m/s?

54. ## Chemistry

Among the following, which element has the lowest ionization energy? A. Na B. Cl C. Cs D. I

55. ## math

Which of the following is equivalent to the inequality 7>-3x>-12? a. -7

A pedal socket has a radius of 4 in and the wheel socket has a radius of 2 in. The wheel has a radius of 13 in. The cyclist pedals at 30rpm Find the angular speed of the socket. Find the speed of the bicycle- (assuming the weel turns the same as the wheel

57. ## Physics

Four point masses are arranged on the xy plane as follows. Mass1 = 47.0 grams at x = 2.00 cm and y = 2.00 cm. Mass2 = 55.0 grams at x = 0.00 cm and y = 4.00 cm. Mass3 = 27.0 grams at x = -3.00 cm and y = -3.00 cm. Mass4 = 45.0 grams at x = -1.00 cm and y =

58. ## Physics

Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same

59. ## chemistry

For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 4.87-L rigid container are [H2] = 0.0496 M [F2] = 0.0116 M [HF] = 0.429 M. H2(g) + F2(g) 2 HF(g) If 0.185 mol of F2 is added to this equilibrium mixture,

60. ## Statistics

When creating histograms, which is true statement? a) Form classes of equal width b) Alwyas form frequency groups that do not overlap c) Establish between five and 15 frequency groups d) All of the above.

61. ## Physics

Consider an insulating sphere with 10 microCoulombs of charge uniformly distributed through its volume. The sphere is surrounded by a conducting spherical shell that has a total charge of -3 microCoulombs. Outside the conucting shell is an insulating shell

62. ## Math

A drawer has 4 red socks and 4 blue socks. If 3 are drawn, what is the probability of a match?

63. ## physics

Four penguins are being pulled alone by a handler. THe masses of the three penguins and the tension in the two of the cords are M1 =14kg, m2=26kg, m4=23kg, T2=115N, and T4=320N. Find the acceleration of the system and b) the mass of m3 that is not give.

64. ## Physics

A radio-controlled car increases its kinetic energy from 8 J to 10 J over a distance of 6 m. What was the average net force on the car during this interval?

Consider two charges Q and q separated by a distance d . If the potential at the point p (which is in right side from both charges) is V=0 , we can conclude (one answer only): a)no net force would act on a test charge located at P . b)Q and q must be same

66. ## math

Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal place. a. Mean b. Range c. Variance d. Standard deviation e. What value is

67. ## PHYSICS

A physical pendulum consists of a disc of radius R and mass m fixed at the end of a rod of mass m and length l . (a) Find the period of the pendulum for small angles of oscillation. Express your answer in terms of m, R, l and acceleration due to gravity g

68. ## Quantitative Literacy | MAT106

In this assignment, look for and provide two advertisements that you think contain logical fallacies. Use any advertisement that you can find in magazines, on television, or from the Internet for this assignment. Your two examples must represent two of the

69. ## BIOLOGY

Consider the following 45 base-pair (bp) DNA sequence: 1 10 20 30 40 | . | . | . | . | . 5’-CGCACCTGTGTTGATCACCTAGCCGATCCACGGTGGATCCAAGGC-3’ ||||||||||||||||||||||||||||||||||||||||||||| 3’-GCGTGGACACAACTAGTGGATCGGCTAGGTGCCACCTAGGTTCCG-5’ You also

70. ## Science

What is the structure that directs chromosome movement during mitosis and aids in the formation of the microtubule scaffolding that pulls on the chromosomes? a. Centrosome (maybe) b. Nucleosome (don't think so) c. Spindle (maybe) d. Cytokinesis(don't think

In addition to the Mg nucleus at x = 3 cm, another 3e charge is situated on the y-axis,3cm away from the origin in the +y direction.What is the magnitude of the Electric Field halfway between the Magnesium nucleus and the 3e charge on the y axis in N/C ?

72. ## Art

what are visual arts

73. ## math

The number a is a number less than -3. What is the range of possibl values of 1/a^2 ? a. 1/a^2

74. ## art

You are a museum director/gallery executive director - a person of responsibility in the arts in a place where people go to deliberately look at art. This work is not being thrust on an unsuspecting public. A local woman of wealth, married to a man with

75. ## Physics 12 Kinematics

I'm not really sure how to use the algebra to prove the monkey shouldn't have dropped. Obviously if the hunter aimed the gun directlt at the monkey it wouldn't hit it as gravity would pull it down. A huntsman fires a gun pointing at a monkey hanging on the

76. ## math

Using the data in the table, calculate the mean, range, variance, and standard deviation, and then answer questions e and f. Round the variance and standard deviation to one decimal place. a. Mean b. Range c. Variance d. Standard deviation e. What value is

77. ## Finance

To measure an investment's risk, you may use all of the following except: A. time value B. range of returns C. standard deviation of returns D. subjective measures of risk

78. ## Physics

A train traveling at a speed of 110 km/h uniformly decelerates for 20 seconds. During that time it travels 450 m. a. What is the acceleration ? = m/s2 b. What is its speed after the deceleration ? = km/h

79. ## phy

What is the distance between an object and its real image formed by a thin converging lens with focal length f = 21 cm, if the object distance is 100 cm? (b) What is the minimum object-image distance for a real image formed by that lens?

80. ## Computers (Internet)

What are 2 credible websites that has information with human evolution?

12x-18y

82. ## Math

The graph of g(x) is f(x) translated to the left 8 units and up 2 units. What is the function rule for g(x) given f(x) = x²?

83. ## MUSIC

WHAT IS FOLK LORE CHARACTERS

84. ## Algebra 1 (Reiny or Kuai)

Write each equation in standard form and give the values of A, B, C. Then describe the graph. 1. x + 3/ 5 = y

85. ## Precalc

Prove: sin2x*sinx/2cosx + cos^2 0 = 1

86. ## Finance

I think that the question is written poorly. 5. Assuming a 6% interest rate, how much would Danielle have to invest now to be able to withdraw \$10,000 at the end of each year for the next nine years. I came up with \$166,667 using the compound interest

If the 3e charge is at the origin and the Magnesium nucleus is 3cm from the origin in the +x direction, at what position (in centimeters) along the x-axis should an electron be placed so that it (the electron) experiences no net force? x =

88. ## Physics

In addition to the Mg nucleus at x = 3 cm, another 3e charge is situated on the y-axis, 3cm away from the origin in the +y direction as shown below: What is the magnitude of the Electric Field halfway between the Magnesium nucleus and the 3e charge on the

89. ## Writing

Hi, this is more of a personal project rather than homework, but help would be appreciated all the same!! I'm writing a story and I don't know how long should my chapters be. I know that some can be 1 page while others are 20, but what do you think the

90. ## Social Studies (History)

Why is the Mary Domsky-Abrams one of the most profound interview after the triangle shirtwaist factory? Please explain. I am struggling with this because nothing is coming into mind.

91. ## math

If a Realtor earns 6% commission for selling \$70,000 home, what is the amount of the commission?

92. ## Chemistry

Okay, the question my teacher asked for one of our pre-labs went as followed: For each reaction, select one compound that reacts rapidly and give a structural equation for the process. Silver nitrate in ethanol I'm confused on how to do this. Also From my

93. ## Chemistry

Why did rutherford model of the atom require that electrons be in motion whereas Thomson's model did not.

94. ## physics

A 7g bullet going at 300m/!@#\$%^&s and embeds itself into a 3.456kg block held on a frictionless table by a spring with k = 40N/m. Find the speed of the block and bullet after collision.

95. ## Biology

How would u expect the number of mitochondria in a cell to be related to the amount of active transport it carries out? Please help!

96. ## SCIENCE

I did this question in this way but 2 of them correct ,is anyone can help me with this question ,many thanks. Choose the words or phrases that most accurately complete the sentences below. Drag and drop your choices into their appropriate spaces. One of

97. ## chemistry

MASS (GRAMS) Nac1- 0.9992 C12H22O11- 0.9822 NH4C1- 0.9510 C6H5OH- 0.9723 C9H20- 1.0038 *Find the Molar Mass (g/mol) for each * *Find the Moles of each element for each * *Find the Atoms of each element for each * - if possible show work and or equation set

98. ## English

Can someone from you help me with these sentences? Which of the options are grammatical? Which are best? It's really urgent..... •She wasn't able to speak until she was... •She couldn't speak until she was •It is better to book a holiday with a

99. ## math

How many formula units of the compound are present in 5.7g of Epson salt?

100. ## algebra

could someone check my answers to these few questions? "What is the equation of the line, in slope-intercept form, that goes through the point (-1, -8) with m = 3 ?" here's my work: y + 8 = -3(x + 1) [i put the values into the equation.] y = -3x + 5 [i

An insulating sphere of mass m and positive charge q is attached to a spring with length h and spring constant k_s and is at equilibrium. An infinitely long wire with positive linear charge density lamda is placed a distance l away from the charged mass at

102. ## Chemistry

HOw does the quantum mechanical orbital differ from a bohr orvit for an electron in a hydrogen atom?

103. ## chemistry

How to perform an experiment to distinguish between zinc(II) hydroxide and magnesium hydroxide?

104. ## chemistry

if I mix 44 mL of sugar in 236 mL of water. how would I find out how many ions of sugar there were?

105. ## PHYSICS

A block is pushed up a frictionless inclinded plane with initial speed V0 =5.50 m/s. The angle of incline is 0= 23.0º. How far up the plane does the block go? How long does it take to get there?

106. ## C++

True or false: A function call statement transfers control of the program to the last statement in the body of a function.

107. ## Physics

An insulating sphere of mass m and positive charge q is attached to a spring with length h and spring constant ks and is at equilibrium as shown below: An infinitely long wire with positive linear charge density λ is placed a distance l away from the

108. ## Math

Area of a rectangle represented by x^2+3x.find length and width of the rectangle

109. ## algebra

If refreshments cost 45\$ for 18 people, at the same rate, how much would refreshments cost for 26 people?

110. ## Physics 11

What is the force of gravity on the moon?

111. ## math

How do I factor non-traditional math problems that contain symbols? The examples given were: \$q + \$8 - \$~ and 7* - x* + 2*.

112. ## Chemistry

I need help I can't seem to get the right answer. Please help! 1/2 H_2 (g) + 1/2 Cl_2 (g) --> HCl (g) -92.3 kJ/mol Na(s) + 1/2 O_2(g) + 1/2H_2(g) --> NaOH(s) -426.8 kJ/mol NaCl(s) --> Na(s) + 1/2Cl_2(g) 411.1 kJ/mol H_2O(l) -->H_2(g) + 1/2O_2(g) 285.8

113. ## PHYSICS

A light inflexible cable is wrapped around a cylinder of mass m1 , radius R , and moment of inertia about the center of mass Ic . The cylinder rotates about its axis without friction. The cable does not slip on the cylinder when set in motion. The free end

114. ## English

I left out two last sentences.Which are grammatica? Thank you very much. 1)When I was five I was able to ride a bike/When I was five I could ride ... 2) Did they manage to book a table...? Were they able to book (is a mistake?)

115. ## ALGEBRA 2 help please would appreciate

find the exact value for cosine and sine of 2,1oo degree thanks

116. ## pre-calc

prove or disprove cos(x-y)=cos(x)-cos(y)

117. ## education

What do we called the scholarship which you can keep(like they don't ask you how you going to use it?)

118. ## math

How much does it cost to paint a tringular surface of sides 6m 5m and 11m at the rate of 20 per m^

119. ## Algebra 1 (Reiny or Kuai)

Is the linear equation 3x - 2 = y in standard form? Explain.

120. ## algebra

When the input is 0, the output is 0. As the input increases by 1, the output increases by 6. 0 | 0 1 | 6 2 | 12 OR 0 | 0 1 | 6 2 | 36

121. ## Pre Calculus

Prove that the equation is an identity. sec x/(sec x -tan x)=sec^2 x +sec x tan x

122. ## Calculus-Antiderivative

Solve the following initial value problem: dr/dt=7cos(pi(t)), r(1/4)=14 r(t)=?

123. ## math

The notation ##(a,b,c)produces a number that is a less than the product of b and c raised to the a power. When ##(2,5,x)=23, what is the value of x? a. 0 b. 1/2 c. 1 d. 2 e. 5 please answer and explain

124. ## algebra

Which function rule (equation) describes the line that passes through points (2, 5) and (0, 9)? A. y = -2x + 9 B. y = 2x + 9 C. y = 9x + 5 D. y = -x + 9

125. ## math

the slope of a mountain if 10, 560 feet lenghth and 5,280 feet widthe

126. ## science

How did Rutherford, bohr, and quantum geiger-marden metail-foil experiments contradict thomas's raisin pudding model of the atom?

127. ## Math

6m^3-12m^3-24m

128. ## Precalculus

Prove that the equation is an identity. sec x/(sec x -tan x)=sec^2 x +sec x tan x