# Questions Asked onJuly 15, 2012

1. ## Calculus

A baseball team plays in a stadium that holds 53,000 spectators. With ticket prices at \$10, the average attendance had been 49,000. When ticket prices were lowered to \$8, the average attendance rose to 51,000. (a) Find the demand function (price p as a

2. ## chemistry

first and second ionisation energies of mg are 740 and 1450 jmol-1 calculate percentage of mg+and mg2+ of 1g of mg absorbs 50 kj of energy

3. ## Finance

Assuming that the returns from holding small-company stocks are normally distributed, what is the approximate probability that your money will double in value in a single year? What about triple in value. Many of my classmates have an expected return of

4. ## Physica

How much work is done by a person lifting a 2 kg object from a bottom of a well at constant speed of 2 m\ s for 5 sec

5. ## Calculus

A farmer wants to build a rectangular pen and then divide it with two interior fences. The total area is to be 2484ft^2. The exterior fence costs \$18.00 per foot and the interior fence costs \$16.50 per foot. Find the dimensions of the pen that will

6. ## CHEMISTRY

WHAT IS THE COMPLETE STRUCTURAL FORMULA AND NAME FOR CH3CH2CH2CH(CH3)CH3 2. CH3CH(C2H5)CH2CH3 3. CH3CH2CHCLCH2CH2CH2CH2Cl 4. CH3CH2CH2CH2OH 5. CH3CH2CH2CH2COOH 6. CH2=C(CH3)CH2CH(CH3)CH3 7. (CH3)2CHCl 8. CH3C(CH3)2CH2C(CH3)2CH2CH2CH3 10. CH3C(triple

7. ## accounting 205

Net income for the year is \$25,000. Withdrawals of \$36,000 per were taken at the end of the year. Which of the following occurs? (Points : 1) The Capital account decreases by \$22,000. The Capital account decreases by \$11,000. The Capital account increases

8. ## Trigonometry

Show algebraically how to confirm that cos2x=cos^2x-sin^2x using the sum and difference identities

9. ## ALGEBRA

-4x+9y=-36 FIND THE X AND Y INTERCEPT AND GRAPH THE EQUATION PLOTTING THE INTERCEPTS

10. ## Trigonometry

Simplify the expression using trig identities: 1. (sin4x - cos4x)/(sin2x -cos2x) 2. (sinx(cotx)+cosx)/(2cotx)

11. ## math

If two fair dice are rolled, find the odds in favor of getting doubles

12. ## Math

Use the compound interest formulas A = P(1 + r/n)nt and A = Pe^rt to solve. Find the accumulated value of an investment of \$3000 at 9% compounded continuously for 3 years.

13. ## math

A batsman hits a cricket ball 'off his toes' towards a fieldsman who is 65 m away. The ball reaches a maximum height of 4.9 m and the horizontal compoenent of its velocity is 28 m/s. Find the constant speed with which the fieldsman must run forward,

14. ## chemistry

NH4NO3(s) + H2O(l) NH4NO3(aq) ΔH = +25.7 kJ What is the final temperature in a squeezed cold pack that contains 40.0 g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C,

15. ## Chem SCC

Complete this equation for the reaction of NaHCO3(s) + HC2H3O2(aq) ---> Include phase symbols.

16. ## algebra

WRITE THE SLOPE INTERCEPT FORM OF THE LINE SHOWN IN THE GRAPH. WHICH IS (5,-7)(4,7) PLEASE SHOW WORK

17. ## physics

A 10000 Hz tone must have what intensity level to seem as loud as a 50 Hz tone that has a 100 dB sound level? (See Fig. 12-7.) 12_07.gif

18. ## math

A government survey conducted to estimate the mean price of houses in a metropolitan area is designed to have a margin of error of \$10,000. Pilot studies suggest that the population standard deviation is \$70,000. Estimate the minimum sample size needed to

19. ## Trigonometry

Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation sin^2(x) = cos^2(x/2)

20. ## Chemistry

The reaction for my lab is Mg(s)+2HCl(aq)--> MgCl2(aq)+H2(g) I need to find the pressure of the hydrogen gas. Initial Pressure = 0.98692 atm Total Pressure = 1.64816 atm I don't know if I calculated the pressure of hydrogen gas correctly. I used the

21. ## maths

a 4m ladder is leaning against a wall when its base starts to slide away. By the time the base is 2m from the wall, the base is moving at the rate of 1m/sec. find a) the speed at which the top of the ladder is sliding down the wall b) the rate at which the

22. ## Physics

A pulley system os being used to raise a load. The rope begins at the ceilings, goes down, round a pulley on the load, up to a pulley on the ceiling, back down and around a second pulley on the load, and up to a sheave (a motor driven pulley) on the

23. ## chemistry

Potassium permagnate +ferrous sulphate+ sulphuric acid molecular formula

24. ## probability

3. A bag contains five different lightbulbs. The bulbs are the same size but each has a different wattage. If you select three bulbs at a random,how many different outcomes will be in the sample space if the bulbs are selected without replacement? I

25. ## physics

Percentage error in displacement time and mass are 2%, 1% and 3%. Find percentage error in the measurement of force.

26. ## Chem

2H2(g)+O2(g) ---> 2H2O(l) delta H= -572kJ/mole of O2 Calculate the amount of heat evolved when 10g of hydrogen are burned in excess oxygen.

27. ## Integrated Math 1

Find the difference of the polynomials below. Write your answer in descending order. (x3 + 2x2 + 5x + 7) - (3x3 - 2.5x2 + 5x + 5)

28. ## ALGEBRA

GIVEN THE LINEAR EQUATION Y=4/3X+1 FIND THE Y COORDINATES OF THE POINTS (-6), (-3), AND(6). PLOT THOSE POINTS

29. ## astronomy

big bang theory define

30. ## Calculus

Zoe purchased a house in 1999 for \$196,000. In 2004, she sold the house and made a net profit of \$80,000. Find the effective annual rate of return on her investment over the 5-year period. (Round your answer to the nearest hundredth of a percentage point.)

31. ## intro chem

What is the mass of carbon dioxide produced if 1.95 g sodium carbonate is used?

32. ## Chem

Given that 277J of heat are absorbed when 1.12g of sodium nitrate are dissolved in water, calculate the heat of reaction.

33. ## Integrated Math 1

Calculate the product of the binomials below. Use the caret ( ^ ) to enter any exponents; for example, write x2 as x^2. Write your answer in descending order. (4x - 3)(x + 1)

34. ## math statistics

For each probability and percentile problem, draw the picture. A random number generator picks a number from 1 to 9 in a uniform manner. 1) Give the distribution of X. X = 2) Enter an exact number as an integer, fraction, or decimal. f(x) = where 3) Enter

35. ## Calculus

(a) If a farmer plants x units of wheat in his field, 0 ≤ x ≤ 144, the yield will be 12x − (x^2/12) units. How much wheat should he plant for the maximum yield? (b) In the problem above, it costs the farmer \$108 for each unit of wheat he plants, and

36. ## Math 120

Graph the solution set to the inequality. 2x+3y>12

Problem 1 - Aunt Ethel's Fancy Cookie Company manufactures and sells three flavors of cookies: macaroon, sugar, and buttercream. The batch size for the cookies is limited to 1,000 cookies based on the size of the ovens and cookie molds owned by the

38. ## Physics

A 4.0 x 101 kg wind sled is gliding East across a frozen lake at a constant speed of 12 m/s, when a gust of wind from the southwest exerts a constant force of 1.0 x 102 N on its sails for 3.0 s. With what velocity will the sled be moving after the wind has

39. ## Binomial Probability

This is an example that I am trying to work along with. An endurance context is being held with two independent groups in 20 participants. Individual participants in the contest drop out before the end of the contest with probability 0.08 (independently of

40. ## Trigonometry

Use the half-angle identities to find all solutions on the interval [0,2pi) for the equation cos^2(x) = sin^2(x/2)

41. ## English

Are these two quotes direct quotes? "Mom," asked Jill, "how long until we can leave?" "About 10 minutes, hon."

42. ## WRITING

Examples of why city people are more educated and open-minded whereas the country people are usually illiterate?

43. ## English

What does lunar mean? I know it has something to do with the moon but in the context "America builds a lunar base there." What would that mean?

44. ## Microbiology

What responsibilities do patents have for their children's health?

45. ## Biology

A trip to a different stream which had 30 fish marked at an earlier time produced 20 captured fish but none were recaptured with fish tags. Can you estimate the number of fish in this stream? Explain your answer.

46. ## Astronomu

1. There is a common misconception about why the Earth is cold in the winter and warm in the summer. Some believe that this is because the Earth, in its elliptical orbit, is closer to the Sun in the summer and farther away in the winter. The argument is

47. ## Physica

In the figure shown ,f =40 N (angle force is 40 ) and m=2.0 kg . the magnitude of acceleration of the block is;

48. ## Physica

In the figure shown ,the string and pulley are massless , if m1 = 15 kg and m 2 =10 kg ,the tension in the string is ;

49. ## Physica

The tension of the string of a system as shown m1=m2=5.00kg in the figure is

50. ## Biology

If the line for 60 captured is extended downward to zero percent error, what fraction of the total population would this represent? (Compare the actual number in the can to the extrapolated number on your graph.) What more information do I need to provide

51. ## Accounting

Sierra Company is considering a long-term investment project called ZIP. ZIP will require an investment of \$121,200. It will have a useful life of 4 years and no salvage value. Annual revenues would increase by \$79,180, and annual expenses (excluding

52. ## Integrated Math 1

In rectangle ABED, AC = 7 cm and DE = 10 cm. What is the length of AD? If necessary, round your answer to the nearest tenth.

53. ## chemistry

Run # Volume NaOH used (mL) 1 4.1 2 4.3 3 2.8 Concentraion of NaOH: 0.113 M pH of acid: 2.84 the questions are: #moles of NaOH: ? initial acid concentration: ? Determine the Ka and pka of the weak acid: ? So here is what I did: Shaked for several minutes

54. ## Anatomy & Physiology

Provide a detailed description of mechanism involved in the formation and maintenance of the resting potential.

55. ## human growth and Development11

Samuel,a50-year-old psychologist, claims that he is a victim of"revolving door syndrome" What is Samuel's problem?

56. ## com 200

Concrete words have a ________________, a corresponding person or object that you can see, touch, or otherwise experience with your physical senses

57. ## math

how many dimes and quarters does jill have if she has \$9.90 in dimes and quarters and she has 3 times as many dimes as quarters?

58. ## psychology

how effective is classical conditioning in the long tem

59. ## astronomy

You must show your work for full credit.) Calculate the circular speed of an object that orbits the Sun at a distance of 5.2 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the Sun)

60. ## astronomy

Which of the following is not a reason why winter is cold? The sunlight strikes the Earth at a glancing angle to the surface. ]There are fewer daylight hours in the winter. The nights are longer in the winter. The Earth is farther from the Sun in the

61. ## astronomy

What phase is the Moon if it is visible in the sky at midnight, but not exactly, opposite the Sun?

62. ## math

could you please help with this question :) Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top of a wall 26.25 m high and 30 m away. Thanks in advance

63. ## Physics (angular momentum)

A solid disk of 5kg and radius 0.5m turns at the rate of 10rpm. You then carefully place a 2kg book at the edge of table as it spins. What is the new rotation rate of the table(in rpm)?

64. ## maths

the volume of water in a tidal pool is given by the formula V = 2cos (3pi/x ) where x is the depth of water in the pool. Find the water at which the depth of the pool will be increasing when the volume in the pool is increasing at the rate of 12 cubic

65. ## math

The queen asked her cook how many guests had attended a recent banquet. “I do not know, my lady” he said, “but every two guests shared a plate of fruit between them, every three used a bowl of broth among them, and every four shared a platter of

66. ## Physica

if a ball thrown straight up how does the distance ( h) it rises vary with its initial speed?

67. ## Physica

a man pushes a box of mass 5 kg in a horizontal direction by 10 N force on the surface through a distance of 5m if the cofficien of kinetic friction is 0.2 the total work done on the box is

68. ## English

deirious means: A. tense B. obnoxious C. out of senses D. sleepy misconception means: A. information B. dislike C. a false idea D. a trick

69. ## Physica

a ball of mass 0.2 kg is thrown at 10 m s its kinetic energy is

70. ## Computers

Your sister owns a small clothing store. During a conversation at a family dinner, she mentions her frustration with having to manually track and reorder high demand items. She would like an automated system but has a very small budget. Write a 4-5 page

71. ## Physica

a woman pushes horizontally a chair with a force of 400 N the work she does on the chair to move 2 m is

72. ## Physica

which of the following is correct a)the average speed of an object is the elapsed time divided by the distance traveled b)the average velocity of an object is the ratio of the distance traveled by the elapsed time. c)the instantaneous velocity is the limit

73. ## Physica

IF A = 2x+3y and B = -x+y, then the angle between the resultant A+B and the positive directio of x-axis is

74. ## English

There are more than 200 different cold viruses. You can build up protection against a cold virus that you have already had. How ever, this 'immunity' can not help a person fight off a different cold virus. Immunity means: A. the spread of a disease B. the

75. ## Math

How do you find the high and low estimate for 29 x 73 and 615 X 25?

76. ## Physica

In the figure shown ,f =40 N (angle force is 40 ) and m=2.0 kg . the magnitude of acceleration of the block is;

77. ## Physica

In the figure shown ,the string and pulley are massless , if m1 = 15 kg and m 2 =10 kg ,the tension in the string is ;

78. ## Physica

The tension of the string of a system as shown m1=m2=5.00kg in the figure is

79. ## Physica

A box of a mass 1500 kg slides from rest on inclined plane , as shown in figure(the angle 30) .Neglecting the Frictional force ,the magniture of its acceleration is ;

80. ## Physica

A car acceleration from rest 45 m\s in 15 s average acceleration is.

81. ## astronomy

2. We ultimately want to find the amount of solar energy that hits the observer on the planet. Energy is usually measured in Joules, but there are other appropriate units of energy as well; kilowatt-hours for example, are used to measure the amount of

82. ## Physica

A car moving along astraight line changes its velocity from 40 m\s to 80 m\s in a distance of 200 m . The acceleration during its motion is ...

83. ## Mathematics

If 1-x -2x -3x = 6x-1 what is the value of x?

84. ## Physica

The sum of two vectors A and B is maximum when both vectors are : A)parallel B) opposite in direction C) perpendicular to each other D) A inclined 45 with B E) none of the above

85. ## pHYSIC

3. Now wait until the planet is at the summer solstice (to the far left). Here the sunlight arrives perpendicular to the surface. (Note that the fact that the sunlight can be perpendicular to the surface here and parallel to the surface at the winter

86. ## Physica

How much work is done by a person lifting 2 Kg object from a bottom of a well at constant speed of 2 m is ( work =...... kj )

87. ## Pre calculus

From h a point A that is 10 meters abov level ground, the angle of elevation of the top a building is 42 degrees and the angle of depression of the base of the building is 8 degrees approximate the height of the building

88. ## Physics

PLEASE ANSWER ASAP!!!!!!!!!!!!!!!!!!!!!!! a cross country runner runs 3km due east, 5km due south and 8km south west. what is the runners final displacement and what direction in true bearing form? PLEASE CAN YOU EXPLAIN IT STEP BY STEP

89. ## math

what number am I ?? I am 1000 less than 46 503

90. ## physics

please give a me a nice topic for my investigatory project. hope the materials also are easy to gather. thanks alot

91. ## collage math

what is the difference of two cubes

92. ## pHYSIC

Now let us consider the length of time that the Sun is visible. Wait until the planet is at the summer solstice (12:00am). a) How many hours of daylight are there on the summer solstice with the inclination at 45 degrees? To estimate the length of day,

93. ## pHYSIC

5. Now, wait until the planet is at the winter solstice (12:00am). a) How many hours of daylight are there on the winter solstice with the inclination at 45 degrees? Use the same criteria for the length of day that you used for the previous question. b)

94. ## Physics

You roll a 5 kg bowling ball (R=20cm) with an initial speed of 10 m/s up a 30 degree ramp that is 12 m long. Will the ball reach the top of the ramp? (support your answer)

95. ## Physic

Before continuing we need a little more information about the angle factor given in the formula above. It turns out that the angle factor is equal to the cosine of the angle that the light strikes the surface as measured from perpendicular. In this

96. ## CHEMISTRY

WHAT IS THE NAME OF THIS COMPOUND? 1. K2SO4? 2. Ca3(PO4)2 3. LiI 4. KMnO4 5. NaNO2 6. SnCl2 7. Fe(OH)3 8. NaClO 9. BaSO3 10. Pb(NO3)2 11. Hg2Cl2 12. (NH4)2CO3 13. MgO 14. CuBr 15. Fe2s3 pls do help me.. tnx:)

97. ## math

Please note, this is one section of the problem. I didn't feel the need to post the entire question as I understand how to do it...minus this one part. (2 tan pi/3) apparently becomes 2 sqrt 3.....explain?

98. ## math

Calculating Annuities, Payment Plans & Amortization: A Sears Revolving Charge Card has a monthly rate of 1.75%. the interest is a minimum of \$0.50 if the average daily balance is \$28.50 or less. Explain how this policy is beneficial to Sears

99. ## Algebra

Numbers 85,100,65,75,50,94,74,99,83 and what is the mean?

100. ## Integrated Math 1 (help please??:( )

Consider y=x^2+8x+16. What is the correct way to factor this equation? How does this equation shift the graph of y=x^2?

101. ## Accounting, Finance

Do you have college accounting help also?

102. ## Physica

How much work is done by person lifting a 2 kg object from abottom of awell at constant speed of 2 m\s for 5 sec

103. ## Integrated Math 1

Consider y=x^2+8x+16. What is the correct way to factor this equation? How does this equation shift the graph of y=x^2? A. the correct factored form is y=(x+4)^2. this shifts the graph of y=x^2 up 4 units. B. the correct factored form is y=(x+4)^2. this

104. ## History

Efficiency was a central theme of the reform movement. Who of the following was not an example of someone striving to examine every aspect of life itself and determine, often through new scientific principles, how to do more work with less energy? (Points

105. ## BUSN

"Select all items that will be included in Sports Baseballs, Inc. Balance Sheet." ------- Options Cash on hand Fixed assets Net sales Administrative expenses Taxes Long-term debt Dividends paid Marketing expenses Consulting revenues I cannot find

106. ## history

Are Aboriginal people Native people?

107. ## Basic Algebra

A new cruise ship line has just launched 3 new ships: the Pacific, the Caribbean, and the Mediterranean. The Caribbean has 15 more deluxe staterooms than the Pacific. The Mediterranean has 26 fewer deluxe staterooms than four times the number of deluxe

108. ## Math

given the linear equation y=- 4/3x 1 find the y coordinates of the points (-6), (-3), and (6) show work

109. ## Math

In 1983, the population of Functionville was 2560, and it tripled in 6 years. a. Write an exponential model for the population of Functionville t years after 1983. b. According to your model, it what year had the population grown to 7 times its size?

110. ## Physic

How can we describe some object in astronomy? How can we interpret data? Can we either prove or disprove a hypothesis? If not, what can we do? How have theories developed over time? Explain and provide some examples.

111. ## math

If the the total enrollment in LA county combined schools was 1,583,283 students in 1997, approximately how many of those student were Asian at 8.1 8.1% choices: 194,467, 904,055, 128,246 , 19,546,704, 1,282,459 my answer is 128,246 multiplied

112. ## algebra

write the slope intercept equation for the line that passes through (14,-2) and is perpendicular to 7y-10x=18

113. ## math

7-2n+4n=n+3 an can you please provide steps

114. ## Calculus

Solve the equation (3^x)^2-12*3^x+27=0 Simplify and write without negative exponents: 3^2(x^-2y^3)^3/4^1/2*x^-4cuberooty^2

115. ## chemistry

From the following information, calculate the standard change of enthalpy for the combustion of coal. C + O2 -> CO2 COMPOUND HEAT OF FORMATION coal 0.0 carbon dioxide -393.5 water (l) -285.9 oxygen 0.0

116. ## Physica

In the figure shown ,f =40 N (angle force is 40 ) and m=2.0 kg . the magnitude of acceleration of the block is;

117. ## precal

From a point B that is 9 meters above level ground , the angle of elevation of the top of a building is 43 degrees and the angle of depression of the base of the building is 7 degrees. What is the height of the building. (tell what formula and why you used

118. ## ALGEBRA

SIMPLIFY AND SHOW WORK 12-1/9-4/3+(1/2)^2

119. ## Physic

How can we describe some object in astronomy? Can we either prove or disprove a hypothesis? If not, what can we do? How have theories developed over time?

120. ## Integrated Math 1

Find the difference of the polynomials below. Write your answer in descending order. (x^3 + 2x^2 + 5x + 7) - (3x^3 - 2.5x^2 + 5x + 5)

121. ## UOP RES 342

Use the numerical data from one of the data sets provided. · Develop one business research question from which you will formulate a research hypothesis that will test two or more populations. · Prepare a 250 word paper describing the results of a

122. ## ALGEBRA

SOLVE AND SHOW WORK -6(5-2z)+5z-8z-3(16-3z)

123. ## Chem

2H2(g)+O2(g) ---> 2H2O(l) delta H= -572kJ/mole of O2 Calculate the amount of heat evolved when 10g of hydrogen are burned in excess oxygen. Can someone please explain step by step? =D

124. ## chemistry

What is the absolute entropy of 3.1 mol of gaseous ammonia at 1.8 bar and 298 K?

125. ## Calculus

The Estradas are planning to buy a house 5 years from now. Housing experts in their area have estimated that the cost of a home will increase at a rate of 3%/year during that 5-year period. If this economic prediction holds true, how much can the Estradas

126. ## i.q

there are three beaker of 20liter,13liter,7literand 20liter is full and u hav to divide 20liter in 10-10liter . then how u will do these ther r no other option without three beaker....

127. ## statistics

if the mean is 250mg and the standard deviation is 75mg and 2% goes either right or left, what formula do i use to come out with a normal curve?

128. ## Science

A certain isotope has a half-life of 12 hrs. How long will it take for 100 ƒÝgr to decay into only 25 ƒÝgr?

129. ## Integrated Math 1

Factor by grouping. 36 + ab + 2b + 18a A. (a-2)(b-18) B. (a+2)(b+18) C. (a+2)(18a+2) D. (ab+2b)(36+18a) E. this cannot be factored.

130. ## Clinical chemistry

Does anyone help me how to solve percent sol.,molarity,molality and normality in step by step?? i have this exam tom. so i really need ur help ...thanks in advance

131. ## Chem

what is the total ionic equation for AlPO4(aq)+3NaOH(aq)=Al(OH)3(s)+ Na3PO4, I am not sure I am right I have Al+PO4(aq)+Na3+OH3() --> Al+OH3+Na3+PO4 but then everything crosses itself out and I don't have a net. what am I doing wrong?

132. ## Personal Finance

During a job interview Pam Thompson is offered a salary of \$2800. The company gives annual raises of 6 percent. What would be Pams salery during her 5th year on the job?

133. ## Computers

Your sister owns a small clothing store. During a conversation at a family dinner, she mentions her frustration with having to manually track and reorder high demand items. She would like an automated system but has a very small budget. Write a 4-5 page

134. ## Integrated Math 1

What is the coefficient of the xy^2 term in the expansion of (3x + y)^3? Use the binomial theorem.

135. ## Algebra

Simplify. Remember to use absoulute value notattion when necessary. If a root cannot be simplified state this. {(7b)exponent4}^(1/4) I did something wrong when I did it.

136. ## Calc

How much money will we have in 6 months if we invest \$1000 into an account earning 8% compounded continuously? How long will it take the \$1000 to double? What is the effective rate for 8% compounded continuously that would produce the same accumulated

137. ## marketing

How might you use different types of research (focus groups, observation, survey, and experiment) to forecast market reaction to a new kind of disposable baby diaper?

138. ## marketing

Using the broad definition of a product, identify and explain what products are being offered by a shop that specializes in bicycles; by a travel agent; by a supermarket; and, by a new car dealer

139. ## Chemistry

A 1.90-g sample of a large biomolecule was dissolved in 25.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling point constant is

140. ## chemistry

[NaOH]= 0.113M V of NaOH needed to titrate = 0.0037L V of unknown weak organic acid = 0.025L Find: The initial concentration of this weak acid.

141. ## algebra

When the cost of a car is multiplied by 0.07 the result is \$1750. Find the cost of the car.

142. ## chemistry

95.0 g of0.0 degrees celsius ice is added to exactly 100 g of water at 60.0 degrees celsius. when the temperature of the mixture first reaches 0.0 celsius the mass of the ice present is?

143. ## Math

A tree one hundred cubits high is distant from a well two hundred cubits; from this tree one monkey climbs dow the tree and goes to the well, but the other leaps in the air and descends by the hypotenuse from the high point of the leap, and both pass over

144. ## Math-120

If a force of 5 pounds stretches the spring 2 inches, Find K. How much force is necessary to stretch the spring 14 inches

145. ## Math 120

If a force of 5 pounds stretches the spring 2 inches, find K. How far will 18 pounds stretch the spring

146. ## math

The owner of a new company finds that the profit P is related to the number x of items sold by . What is the maximum profit in dollars?

147. ## ALGEBRA

WRITE THE SLOPE INTERCEPT FO (5,-7)(4,7) AND SHOW WORK

148. ## calc

Let g and h be nonnegative functions with limits 1 and infinity, respectively, as x → a. What is the limit of the function below as x → a? If it cannot be determined, write the indeterminate form. (9 + g(x))^−h(x) I don't understand, please explain!

149. ## Math

Ramsay is standing 2906 ft away from the base of the Empire State building that is 1453 ft tall. What is the angle of elevation when she looks at the top of the building? Round to the nearest hundredth.

150. ## Chem SCC

Complete this equation for the reaction of NaHCO3(s) + HC2H3O2(aq) ---> Include phase symbols.

151. ## risk management

Why is risk management important in organizations? What benefits are gained by implementing a risk-management program? Describe challenges you see in obtaining buy-in and support from staff. What are the barriers to implementing a risk-management program?

152. ## precal

sin t/(1-cos t)- 1 + cos t /sin t = 0

153. ## chem SCC 151

10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.110 M NaOH. What was the initial concentration of HCl?

154. ## Statistics

The state lottery claims that its grand prize is \$1 million. The lucky winner will receive \$50,000 upon presentation of the winning ticket plus \$50,000 at the end of each year for the next 19 years. Why isn't this really a million-dollar prize? What would

155. ## Physics

A rock climber of mass 55 kg is hanging suspended from a rope tied to another climber of mass 65 kg on a horizontal cliff ledge. If the coefficient of kinetic friction between the climber on the ledge and the ledge is 0.45, what is the net acceleration of

156. ## Biology

Discuss two lifestyle factors (one for bone and one for muscle) that affect the growth, development, size and/or healing (positively or negatively of the tissue. Also state whether the factor can lead to a disease or disorder of the tissue.

a wholesaler or agent who markets products for companies wanting to do business abroad is called a a. licensing agent b. marketing agent c. foreign intermediary d. wholesaling agent

158. ## Science

A 4.0 x 101 kg wind sled is gliding East across a frozen lake at a constant speed of 12 m/s, when a gust of wind from the southwest exerts a constant force of 1.0 x 102 N on its sails for 3.0 s. With what velocity will the sled be moving after the wind has

159. ## IT210

I am havin a really hard time findin an rxample of a pseudocode to test the currency conversion procedures.

160. ## Chemistry

So I did a titration experiment using 0.01 M potassium permanganate. In an erlenmeyer flask I placed a mass sample of FeSO4- with enough DI water to have a total volume of 20-25ml. I recorded the volume of MnO4- it took for the solution to change color

161. ## Science

How do living organisms help purify water? Why will you get a smaller volume at the end of a experiment than what you started with? It is okay to taste your water at the end of an experiment? Why or why not?

162. ## WRITING

What skills do you learn living on a farm to living in a city ?

163. ## math

A researcher wishes to estimate the proportion of college students who cheat on exams. A poll of 490 college students showed that 33% of them had, or intended to, cheat on examinations. Find the margin of error for the 95% confidence interval.

164. ## Calculus

Write as a single logarithm of a single quantity ln(3)+1/2ln(x+2)-4ln(1+sqrtx)