# Questions Asked onSeptember 4, 2012

1. ## Chem

Diamonds are measured in carats (1.0 carat=0.200g). The density of diamond is 3.51 g/cm^3. What is the VOLUME of a 5.0 carat diamond?

2. ## Chemistry

1.42 g/cm^2 to mg/mm^2

3. ## Maths

A uniform cylindrical container is half filled with water. The height of the cylinder is twice its diameter. The cylinder is gradually tilted until the water touches the brim. At this instant, the container is inclined at which angle: 1.30 2.45 3.60 4.75

Which is more 0.33 or 0.333?

5. ## Math

You invested \$14,000 in two accounts paying 5% and 9% annual interest, respectively. If the total interest earned for the year was \$820, how much was invested at each rate?

6. ## physics

Hello everyone, I need help with this question: A dart gun is fired while being held horizontally at a height of 1.00m above ground level and while it is at rest relative to the ground. The dart from the gun travels a horizontal distance of 5.00m. A

7. ## Elementary Statistics

Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. Using Chebyshev’s theorem, what do we know about the percentage of women with heights that are within 2 standard deviations of the mean? What are the

8. ## Chemistry

What is the specific gravity of alcohol having a density of .79 g/mL?

9. ## Chemistry

A student found that her mixture was 15 percent NH4cl 20 percent NaCl and 75 percent Sio2 Assuming her calculations are correct what did she most likely do incorrectly in her experiment?

10. ## science

A simple model for a person running a 100m race is to assume the sprinter runs with constant acceleration until reaching top speed, and then maintains that speed through the finish line. If a sprinter reaches their top speed of 11.2ms-1 in 2.15s, what will

11. ## Chemistry

1. Find each mass & which has the greater mass. 1.0 ml mercury or 1.0 ml of water 2. Find each volume & which has greater volume. 100.g gold or 100. g water

12. ## CHEM

A student used 10 mL water instead of 30 mL for extraction of salt from mixture. How may this change the percentage of NaCl extracted? My book says: % NaCl= (grams of NaCl / total grams of mixture) x 100 What I don't get is if it does change the

13. ## Algebra 2

A phone company charges a basic rate of \$13.99 per month. In addition the user is charged \$0.10 per minute for all long distance calls made during the week and \$0.08 per minute for all long distance calls made during the weekend. Write an expression that

14. ## ENGLISH

3. What is the rhyme scheme of the following Anne Bradstreet poem? To Her Father with Some Verses Most truly honored, and as truly dear, If worth in me or ought I do appear, Who can of right better demand the same Than may your worthy self from whom it

15. ## Math

Find the intercepts and use them to graph the equation. y=x-6 A)what are the intercepts B) how do I graph this?

16. ## physics

You are driving down the road at a constant speed. another car going a bit faster catches up with you and passes you. draw a position graph for both vehicles on the same set of axes and note the point on the graph where the other vehicles passes you. if

17. ## social studies

What is an example of a nonrenewable resource?

18. ## Sentences,fragments,run ons

I have answered each group of words and would like someone to check them please. I just want to know I am on the right track, and understand this. Identify whether each group of words is a complete sentence, fragment, or a run-on. 1. Which was in built in

19. ## college math

last month bill's electric bill was \$80.77. This month , bill bill was \$69.06. what is the%degrease

20. ## physics

An elevator is moving upward at 0.93 m/s when it experiences an acceleration 0.29 m/s2 downward, over a distance of 0.67 m. What will its final velocity be?

21. ## math

find the x intercepts of a parabola whenthe vertex is at 2,13 and y intercept at 0,5

22. ## Math

Find two quadratic functions, one that opens upward and one that opens downward, whose graphs have the given x-intercepts. (-3, 0), (-1/2, 0)

23. ## Math

Let p(x)=x^3+4x^2+x-6. Find a polynomial g(x) can be (remainder) r, such that p(x) can be expressed in the form p(x)=(x-2)g(x)+r

24. ## AP Chemistry i need help!

A 21.5997 g sample of impure magnesium carbonate was heated to complete decomposition according to the equation MgCO3(s) → MgO(s) + CO2(g). After the reaction was complete, the solid residue (consisting of MgO and the original impurities) had a mass of

25. ## Chemistry

When secondary alcohol oxidized it produces alkanes. Draw the structure of 2,2 dimethyl 3-butanol + oxygen and give the names for it.

26. ## Math

An employee has an annual salary of \$26,965. After he arranges to have deducted from his salary 12% for the purchase of bonds, 17% for federal withholding tax, and 3% for a retirement fund, what is the amount of his monthly check?

The Recall Computer Company has six territories, each represented by one salesperson. After extensive planning, the company determines that each territory would be expected to achieve the following percentages of total company sales for 2008: Territory

28. ## equations

decide whether each equation is true or false.For each true equation,write the number property shown by the equation.0+6=6

29. ## Physics

A woman weighing 500 N stands in an elevator that is traveling upward. At a given instant the speed of the elevator as well as the women is 10m/s and both are decreasing at a rate of 2 m/s2 at that instant the elevator is exerts a force on the woman that

30. ## chemistry

Sodium (Na) metal undergoes a chemical reaction with chlorine (Cl) gas to yield sodium Cl, or common table salt. If 1.00 g of sodium reacts with 1.54 g of chlorine, 2.54 g of sodium chloride is formed and 17.9 kJ of heat is released. How much sodium and

31. ## Physics

A balloonist, riding in the basket of a hot air balloon that is rising vertically with a constant velocity of 9.5 m/s, releases a sandbag when the balloon is 44.3 m above the ground. Neglecting air resistance, what is the bag's speed when it hits the

Find the break-even point for the firm whose cost function C and revenue function R are given. C(x) = 180x + 12,000; R(x) = 270x

33. ## chemistry

Methanol, CH3OH, a colorless, volatile liquid, was formerly known as wood alcohol. It boils at 65.0°C and has a heat of vaporization of 37.4 kJ/mol. What is its vapor pressure at 22.0°C?

Write a short essay in which you create an analogy to describe particle motion. Compare the movements and positions of people dancing with the motions of water molecules in liquid water and in water vapor. I am NOT asking anybody to do this for me, all I

35. ## geology

determine the Radiocargon age of the sample from its % Modern value. Fragment of Roman Gladiator leather harness 77% modern ___ radiocarbon age BP ____ correct radiocarboned age

36. ## Chemistry

What is the solubility of benzoic acid in room temperature water. Report this in grams/L.

37. ## college alg

find the equation of a line that is perpendicular to line y=1/6x+6 and contains point (-7,0) y=? please show work so i can see how its done

38. ## Physics

A projectile, fired with unknown initial velocity, lands 20.8 s later on the side of a hill, 2900 m away horizontally and 411 m vertically above its starting point. (Ignore any effects due to air resistance.) (a) What is the vertical component of its

39. ## chemistry

What is the specific heat of a metal if 24.8 g absorbs 65.7 cal of energy and the temperature rises from 20.2 degrees celsius to 24.5 degrees celsius?

40. ## math

Factor each of the following expressions X^2+2x+y^2 5x^2-16x+3 (X+y)^2-64 Ax+bx-ay-by

41. ## Math

A circle has the equation x^2+y^2+6x-46=0 graph using (h,k) radius r A) how do i graph this properly B) intercept are?

42. ## physics

A runner is jogging at a steady 2.3 km/hr. When the runner is 8.4 km from the finish line, a bird begins flying from the runner to the finish line at 9.2 km/hr (4 times as fast as the runner). When the bird reaches the finish line, it turns around and

43. ## Math

What does "standard form" mean in 3rd grade math?

44. ## chemistry

What is the rate of reaction when N2O5 equal 2.60×10^-2?

45. ## Math

A baseball is thrown upward from ground level with an initial velocity of 48 feet per second, and its height h in feet is given by , where t is the time in seconds. At what time does the ball reach 10 feet? Round to the nearest tenth. Step by step please

46. ## Physics

Heather and Matthew walk eastward with a speed of 0.94 m/s east. If it takes them 57 min to walk to the store, how far have they walked? Answer in units of km

47. ## DT

For my DT homework I need to do a health and safety poster on a Pillar Drill. I need to find health and safety facts on a Pillar Drill. Please can you help me. Thanks

48. ## finite math

suppose that 3 digits are selected at random from the set S={1,2,3,4,5,6} and are arranged in random order. Find the probability that the resulting 3-digit number is less than 300.

49. ## physics

Two students are on a balcony 21.4 m above the street. One student throws a ball, b1, vertically downward at 13.2 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed. The second ball just misses the balcony on

50. ## Chemistry

If a soft-drink bottle whose volume is 1.50 is completely filled with water and then frozen to -10 , what volume does the ice occupy? Water has a density of 0.997 at 25 ; ice has a density of 0.917 at -10 . Could you also explain the steps as to how I

51. ## math

which integer represents a gain of 9 yards in a football game

52. ## organic chemisrtry

What is high molecular symmetry and low molecular symmetry and give examples of both please

53. ## science

an experiment for a new asthma medication was set up into two groups. Group one was given the new drug, while group 2 was given a sugar pill. the sugar pill serves as _________. a) control B)constant c) Experimental variable D) dependent variable

54. ## organic chemisrtry

What must a molecule possess to be able to absorb radiation in the infra-red region?

55. ## MATHS

Mr.Li had a big rectangular styrofoam measuring 40cm by 40cm by 30cm. He cut cubes of side 4cm from it. What was the maximum number of cubes he could cut from the rectangular styrofoam?

56. ## AP Chemistry

The reaction of 8.7 grams of ﬂuorine with excess chlorine produced 3.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %

57. ## organic chemisrtry

What is a stretch (symmetric versus asymmetric)? What is a bend? ionterpreting infrared spectra NEED HELP PLEASE!!!!!!!!!!!!!!

58. ## math

Can someone please help me with this word problem!?! I know the answer which is 784 feet. But I have no clue how to solve it. Can someone please show how to solve this problem? The word problem is: The melt in Your Mouth Chocolate Factory is a rectangular

59. ## Algebra

A car dealer sells you a car for 6,980.00 with 980.00 down. What is the APR?

60. ## Pre Calc

How do you find cot(225degrees) using the unit circle?

61. ## Statistics

The Insurance Institute for Highway Safety conducted tests with crashes of new cars traveling at 6 mi/h. The total cost of the damages for a simple random sample of the tested cars are listed below. Based on these results, is damage of \$10,000 unusual? Why

62. ## Algebra

A poll was taken of 100 students on how they got to campus. 33 drove alone, 35 rode in a carpool, 26 rode public transportation, 6 used both carpool and public transportation, 8 used both a carpool, 6 used buses as well as their own cars, 5 used all three

63. ## Chemistry

What is the density of a copper block that is 8.96g/cm^3 in ounces/pint? I did all the conversions and the answer I got was 150ounces/pint? Is this correct? How to I solve this problem?

64. ## Algebra

If the principal P=\$600, the interest I=210.00, and the T= 5 Years. What is the rate?

65. ## Algebra

Determine the comparable interest rate for a 80,000 loan when the quoted information is 10.7% + 0.5 pt.+ \$400.00 Round to 2 decimal places

66. ## Chemistry/Math

I went to my teacher numerous times. I'm still not using the right formulas or equations. Please help. A commonly used rule of thumb is that average velocity in a pipe should be about 1 m/s or less for "thin" (viscosity about water). If a pipe needs to

67. ## geology

Below are descriptions of samples, with known ages expressed as either AD or BC (also called BCE). Convert these dates to BP dates (using 1950 as "the present.") 1. Wood from Egyptian coffin - from the Ptolemic period based on style. Date: 200 ± 150 years

68. ## Health

Our biological clocks make us feel most sleepy from? A. 9pm-5am B. 6pm-6am C. 10pm-4am D. 12am-7am

69. ## US history

Indicate below the type of government each colony had in the year 1750. 1 NEW HAMPSHIRE; ROYAL 2 MASSACHUSETTS; ROYAL 3 CONNECTICUT; SELF-GOVERNING 4 RHODE ISLAND;SELF-GOVERNING 5 NEW YORK; SELF-GOVERNING 6 NEW JERSEY;ROYAL 7 PENNSYLVANIA;PROPRIETARY 8

70. ## Algebra

In a recent survey of 100 women the following information was gathered. 32 use shampoo A, 39 use shampoo B, 40 use shampoo C, 12 use A and B, 10 use A and C, 10 use B and C, 7 use all three

71. ## Chemistry

If the pressure of 2.50ml gas were doubled from 0.500atm to 1.00atm what would be the gas volumn at the new pressure?

72. ## Geometry

Find the measure of the angle formed by the hands of a clock at 9:43. Thanks!

73. ## health

what is major depressive disorder?

74. ## math

A year on Mars is 686 Earth Days. (1) Whicch is longer, a year on Mars or a year on Earth. (2) By how many weeks is it longer? Please explain how you got the answer. My answer was 82 1/2 weeks longers

75. ## New Kingdom Of Egypt (Please Review Again!)

Alright, so Thanks so much! I made some corrections! How does it sound now? Anything I should change? Is everything grammatically correct? Thanks so much! New Kingdom of Egypt By: Bryce R The New Kingdom of Egypt had a great impact on the Egyptian

76. ## math

if cos x= 2/5, what is the measure of less than x, to the nearest degree?

3-x=12(x-1)

79. ## Science

Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of

80. ## science... Help me urgent!!

Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of

81. ## physics

A peregrine falcon dives at a pigeon. The falcon starts downward from rest with free-fall acceleration. If the pigeon is 57.0 m below the initial position of the falcon, how long does the falcon take to reach the pigeon? Assume that the pigeon remains at

82. ## Math

What are two ways to read x/16?

what physical force can cause a change in the state of matter what is the difference between chemical and physical changes what occurs during Bose-Einstein condensation Please help me.

84. ## Math

12x-7=8+3x+12

85. ## physics

Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons

86. ## AP Chemistry

For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol

87. ## Chemistry/Physics

The equation needed to solve for volumetric flow rate = flow area * velocity How do you calculate flow area when all is given is velocity 1 m/s and 6000 m^3.

88. ## Honors Pre-Calculus

The prompt says "Graph each function. Determine the interval[s] for which the function is increasing and the interval[s] for which the function is decreasing." The problems that are given in this prompt are: 1. y= x^3+3x^2-9x 2. f(x)=1/(x+1)-4 3.

89. ## History

DESCRIBE THE BENFITS FOR THE DEVISION OF LABOR?

90. ## math

If JK=9x+11 and NO=28, what is the value of x

91. ## math

I tried solving these problems and get stuck . Can you please tell me what am I suppose to do next or did I do them all wrong 1. (x+5)^2 = (x+4)^2 √(x+5)^2 = √(x+4)^2 x+5 = x+4 ? 2. (4x+7)^2 = 144 √(4x+7)^2 = √144 4x+7 = 12 ? 3. (x-5)^2 = 30

92. ## math

Mr burr the head custodian is working on putting new numbers on 42 of the 81 classroom doors. He found two numbers for the 23rd door he was working on in the 6th grade hallway whose sum is 35 and their product is 306. What are the two numbers?

93. ## civics

What three rivers meet together and form the largest waterway??

94. ## chemistry

If the half-life of a first-order decomposition reaction is 24.2 minutes, how long will it take for 10.0 moles of the reactant to decompose so that only 2.5 mol remains?

95. ## Physical Chemistry

Take 3.00 mol of an ideal gas at Pi=25.0 bar, Vi=4.50L, and expand it isothermally. Calculate the work done in two different processes. a. Reversible expansion at Pf=4.50 bar b. Irreversible expansion at Pext=4.50 bar

96. ## english

Imperative Interrogative Declarative Exclamatory 1.what a ball game this 2.Wear your boots in the rain. imperative

97. ## AP Chemistry

For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 6.38 mol of C6H6 and 6.03 mol of O2. Answer in units of mol

98. ## History

Humans modify the environment in places they live. For example, people convert fields and forests into towns and irrigate arid land to support farming. Give 2 examples of ways people have modified the environment where we live.

99. ## Math

Convert 60,000 BTU/hr to in.cubic feet/minute.

100. ## science

How would you find the thickness of a peice of gold foil.

101. ## physics

A car starts from rest and travels for 4.5 s with a uniform acceleration of +1.8 m/s2. The driver then applies the brakes, causing a uniform acceleration of -1.8 m/s2. The breaks are applied for 1.80 s.

102. ## Managerial Accounting

Sandusky Inc. has the following costs when producing 100,000 units: Variable Costs \$400,000 Fixed Costs 600,000 An outside supplier is interested in producing the item for Sandusky. If the item is producing outside, Sandusky could use the released

103. ## Physics

A racing car with mass (including the driver) of 900 kg accelerates from rest to a speed of 200 km/hr in 6 seconds. what is the power output of the engine?

104. ## Logarithms

1.) A fossil is burned and the CO2 produced is captured. It produces 453 counts of radiation per gram. Under the same conditions atmospheric CO2 produces 19 277 counts. Calculate the age of the fossil. I have the formula: Nt = N0 e^ -t(ln2)/T Nt is the

105. ## Calculus

explain why f(x)=(1)/(x^2-9) is discontinoues at x=-3

106. ## calc

Suppose that f(x) = 1/x. Find a simplified expression for f(x)-f(a)/x-a

107. ## Chemistry

Predict whether the following pairs of solute and solvent will result in a solution that completely dissolves. 1. Sodium chloride and water 2. Sodium benzoate and water 3. Sodium benzoate and 1M HCl 4. Benzoic acid and 1M NaOH

108. ## Math

Pages in a book are numbered in typical fashion, starting with 1. The folio for page 10 will contain the tenth and eleventh digits necessary to paginate the book. On what page will the 2009th digit occur? Please Help!!! I have no idea where to begin

109. ## math

Write the following number in all three forms of expanded notation: -273.32

110. ## math

if my input is 1,2,3,and 4 and my output is 5,10,15,and 20 what would my rule be?

111. ## math

show why 4.25/0.7 is the same as 42.5/7

112. ## Chemistry

Which car gets the best mileage? Car A gets 32 miles per gallon Car B gets 14 kilometers per liter

113. ## college alg

find the equation of a line that is parallel to the line x=6 and contains the point (-8,9) please show work, it also wants me to show the answer in an equation

114. ## math

show why 7.32(times)0.8 has the same number of digits behind the decimal in the answer as it has in the problem.

115. ## Johan

Given angle 1 = (x + 7)degree, angle 2 = *(2x -3)degree, angle ABC = (x 2nd power) degree, angle D = (5x - 4)degree. Show that angle ABC congruent to angle D I can't seem to solve this?

116. ## Math

Write the standard form of the quadratic function that has the indicated vertex and whose graph passes through the given point. Vertex: (-2, 5) Point: (0, 9)

117. ## algebra

I know how to do these equations but can't figure these out (x+3)/5=(x-2)/4 2x squared + 14x =0

118. ## math

Solve the equation for x 30x+10x-40=16x+8

119. ## math

how can you help a student understand that decimal numbers are fractions?

120. ## physics

A cannon on a level plain is aimed 50 degrees above th e horizontal and a shell is fired with a muzzle velocity of 1200 ft/s toward a vertical cliff 3200 ft away. How far above the bottom does the shell strike the side wall of the cliff?

121. ## math

A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take? I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help.

122. ## arithmetic

lim x->0 (e^x^2 - 1)/(square root(1+sinx)- square root(cosx))

123. ## math

use each of the digits 3,7,1,5 once to write a number that rounds to the number given

124. ## math

make 2783/1000 a decimal

125. ## humanities

who are the people involved in dark ages?

126. ## math

make 0.237 a fraction

127. ## math

there are 45 children in a class.if there are 3 more girls than boys,how many are girls?

128. ## math

make 24/9 a decimal

129. ## math

i am a three digit number.if you subtract 419 from me the remainder is 126.what number am i?

130. ## math

there are 45 children in a class.if there are 3 more girls than boys,how many are girls?

131. ## math

Evaluate f(x) = x^2+3-4 For f(1/4)

132. ## Physics

A speeder passes a parked police car at a constant speed of 23.9 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.21 m/s 2 . How much time passes before the speeder is overtaken by the police car? Answer in units of s

133. ## Discrete Mathematics

Mathematical sequences can be used to model real life applications. Suppose you want to construct a movie theater in your town. The number of seats in each row can be modeled by the formula C_n = 16 + 4n, when n refers to the nth row, and you need 50 rows

134. ## math

Let s(t) represent the position of a particle at time t, v(t) is the velocity and a(t) is the acceleration. What is the value of v(9) for the following: Given that the acceleration of the particle at time t is a(t) = -3t^2+ 3t + 10 and that its position

135. ## Math

Find the exact value of sin 2teta=2 sin teta cos teta given that cos teta =2/3, 0

136. ## Math

Find the exact value of the product sec teta csc teta given that sin teta=3/5 and cos teta =4/5

137. ## History

What happened during the European dark ages?

138. ## math

What is the domain and range for each function F(x)=x^2-6x-10 Y=3sinx G(x)=10^x

139. ## Math

for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

140. ## physics

Two ants race across a table 63 cm long. One travels at 5.14 cm/s and the other at 3 cm/s. When the first one crosses the finish line, how far behind is the second one? Answer in units of cm

141. ## Math

The four relations are reprinted below: A) y= -2x+34 B) y= -x/3-10 C) y= - (absoulute value of 3x) D) y= (x-2)squared What order will result in a final output of 2 when the first input is 8?

142. ## History

When did the dark ages occur? How did it start? What happened during those times? How did it end?

143. ## Algebra Enrichment

5b(b+3)-8(1-b)

144. ## physics

Consider a position-time graph. The position is to be graphed 1. along the horizontal axis. 2. along either axis you choose. 3. along the vertical axis.

145. ## math, medical

A medication is available in 30mg. tablets. A patient is given a prescription for gr. ii. How many tablets should the patient take? I am not sure how to work this problem out, and i am confused on the gr. ii. part, i do not know what it means, please help.

146. ## History

How did the Dark Ages end?

147. ## Math

1/x+1-1/+2=1/6

148. ## Math

x^2 + 5x -10= 0 has 2 solutions A and B where A < B and A = ? and B = ?

149. ## math

complete the pattern starts at 0.22 _ _ _ ends at 0.84 fill in the blanks

150. ## Accounting for Managers

Question 1 of 20 5.0 Points In comparing management accounting with financial accounting, which of the following statements is FALSE? A. Management accounting is primarily used by managers, employees, and supply chain partners. B. The report format for

151. ## Math HW Check

Which number is equivalent to the expression below? -9 / -3 + 4 x -2 e) 18 f) -5 g) -14 h) -11 -9 / -3 + 4 x -2 -3 + 4 x 2 - 5 I got -5 am I correct????

152. ## Physics

Large boxes of pumpkins are set on a ramp to be unloaded out of a truck. The 300.0 lb boxes are set on the ramp which has an incline of 35 degrees. They must then be pushed to get started down the plane towards the bottom. If the coefficient of the static

153. ## MATH

for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

154. ## Math Qs. Check!!!!!!

Jake puts pennies into a jar each morning and lets his brother take haft of the pennies out each morning. Jake put 10 pennies into the empty jar on Monday morning. On Tuesday he put in 15 pennies. One Wednesday he put in 12 pennies. How many pennies are in

155. ## Quantitative Chemical Analysis

Hg has an AW of 200.59 g/mol and HgS has a MW of 232.66 g/mol. Compute the gram of Hg needed to prepare 20 g of standard containing 1% Hg(wt/wt) Then compute the gram of HgS needed to prepare 20 g of standard containing this same 1% (wt/wt).

156. ## Chemistry

I need the formula for the question, if the hot tub heater provides 5900 kj/min, how long in hours will it take to heat the water in the hot tub from 69f to 112f? Help please

157. ## Math

Find all real solutions of equation 2x^2+1-4=0 Does the equation have real solutions? Yes or No? If yes, x1= and x2= with x1 (less than or equal to) x2

158. ## Math (help)!!!!

Paula looked at a map of her city. The map indicated that 1 Inch represents 3 miles. Paula's home and City Hall 2 1/3 inches apart on the map. What is he distance between her home and City Hall. a) 6 1/2 miles b) 7 miles c) 14 miles d) 5 1/3 miles

159. ## Statistics

The distribution of heights of women aged 20 to 29 is approximately Normal with mean 63.6 inches and standard deviation 3 inches. The height (± 0.1 inch) of the middle 68% of young women falls between a low of inches and a high of inches.

160. ## Math

A circle has the equation x^2+y^2+6x-46=0 graph using (h,k) radius r A) how do i graph this properly B) intercept are?

161. ## Chemistry

I need the formula for the question, if the hot tub heater provides 5900 kj/min, how long in hours will it take to heat the water in the hot tub from 69f to 112f? Help please

162. ## Math

Ayeshe was given 3 clues concerning the value of a mystery fraction. The clues she was given are shown below. 1) I am a fraction between 1/5 and 1/4 2) My numerator is a prime number less than 10. 3) My denominator is 10 more then my numerator. What is the

163. ## Humanities, social studies

what did the burgundians look like? how did they dress? what culture did they have? what activities did they do in their culture?

164. ## humanities

what are the causes of dark ages?

165. ## Physics

A shopper pushes a cart 50 m south down one aisle and then turns 90.0° west and moves 19 m. He then makes another 90.0° turn and moves 13 m. (a) What is the largest possible displacement of the shopper? (b) What is the smallest possible displacement of

166. ## Science

Does the material of the rod affect the period of time taken by a pendulum? if so, how? like maybe, if the mass of the rod is heavier, it will take a shorter time, etc.

167. ## math

solve 2x-y=11 and x+y=13 using the elimination method

168. ## physics

A landing craft of mass 12000 kg prepare itself for moon landing. when at a vertical distance 160m above the moons surface its downward velocity is 15 m/s. a retrorocket is fired to give the craft an upward thrust to slow its speed to zero as it meet the

169. ## Math

Solve the equation for x. 30x+10x=40=16x+8

3x+4x

171. ## math

12x^2y-6xy^2/3xy

172. ## Math

1. x/4 + 11 = -25 2. x/4 - 5 = 13 3. x/4 = 13

173. ## math

7 digit number have 8 in the thousands place.

what is 13/16 minus 1/4?

175. ## physics

A viking sails from his home port and travels east at 15km/hr.after 10 hours, the wind change and he is blown south west at 20km/hr for six hours.at his point wind drops, the ship is becalmed and doesnot move for the next ten hours.becoming tired of

176. ## physics

A place kicker must kick a football from a point 38.2 m from a goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked the ball leaves the ground with a speed of 20.6 m/s at an angle of 53° to the horizontal.

177. ## Math (help)!!!!

Show two ways of simplifying this expression: 4(25-3)

178. ## Humanities, social studies

Can someone please give me links or answer these questions: What Culture did the Burgundians have? if so, what did they do (culturally) How did the Burgundians Are they a democracy, monarchy, etc.? How did they make money (politically and economically) I

179. ## college math II

how do you translate the product of 10 and three more than a number in algebraic expression?

180. ## math

Evaluate f(x)=x^2+3x-4 F (1/4)

181. ## Review Story

Can you please review this summary of the New Kingdom of Egypt I did for Geography? Its just suppose to be a basic summary. I mainly struggle with capitalization and I never know what should and shouldn't be capitalized. Also, is there anyway I could make

182. ## spanish

what is the spanish word for "see you soon"

183. ## Religion

Discuss the ways that two religious traditions approach the problem of evil and establish a moral code for believers. Compare and contrast the two approaches.

184. ## math

Assume that the box contains 5 balls: 1 yellow, 2 green, and 2 red. Balls are drawn in succession without replacement, and their colors are noted until a yellow ball is drawn. Q: How many outcomes are there in the sample space?

185. ## english

How is the theme death portrayed in the poisonwood bible and a prayer for Owen meany?

186. ## Math

There's a bowl full of candy bars. Mike takes1/3 of the candy bars but returns 4. John then takes 1/4 of what was left but returns 3 , and Henry took 1/2 of the remainder but returned 2. The bowl had 17 candy bars left. How many candy bars were originally

187. ## history

The _______ damanded that Latin American countries keep their financial affairs on order or risk intervention by the United States

188. ## math

The sum of two consecutive numbers is 37. What are they?

189. ## algebra

8 + 5(4*2) – 30

190. ## math

Find the x-intercept and y-intercept for y=-5+1

191. ## Personal Finance

Jo Bower owns 150 shares of Data General stock. She purchased the stock for \$24 a share. She sold her stock for \$30 a share. The commissions required to buy and sell her stock totaled \$120. Assuming that she received no dividends during the time she owned

192. ## Physics

A car accelerates uniformly from rest to a speed of 72.7 km/h (20.2m/s) in 11 second. the distance the car travels during this time.

193. ## biology

what units are typically used to measure volume?

194. ## math

what is 1/30 plus 3/20??????

195. ## history

The presidential election of 1928 pitted Al Smith of New York against.

196. ## math

add or subtract the following polynomials as indicated (5.9x3 + 3.4x2 -7)-(2.9x3-9.6x2 +3)

197. ## heath

Resistance exercises improve muscular strength in persons with such conditions as ________. A. Multiple sclerosis and stroke B. Cerebral palsy and spinal cord injuries C. Cognitive disability D. All of the above

198. ## Math

John runs on a daily basis. He jogs 5 miles every day except Saturday. On that day he jogs 9 miles. How many miles will he jog in 4 weeks?

199. ## Geometry

Find m∠T if m∠T is 20 more than four times its supplement.

200. ## Physics

A car travels in a straight line for 3.9 h at a constant speed of 83 km/h . What is its acceleration? Answer in units of m/s2

201. ## Physics

Rocket-powered sleds are been used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 424 m/s in 2.35 s and can be brought to a stop again in 2.16 s. Find the acceleration of the sled while accelerating.

202. ## Physics

A car traveling in a straight line has a velocity of 2.36 m/s at some instant. After 3.09 s, its velocity is 9.33 m/s. What is its average acceleration in this time interval? Answer in units of m/s2

203. ## math

Find the monthly payment for a loan of \$31,000 at 7% for 7 years

-6(2r-4)

205. ## Chemistry

A liquid has a density of 0.98 g/mL, what is the mass of 8.0 mL? And show work.

206. ## MATH

bob and his dad visted the hardward store on sunday. They observed the following transaction: Mr harris bought 4 for \$.05, Mrs Clarke bought 21 for \$1.00, Mr Montaro bought 1,134 for \$2.00 and Ms. Park bought 450 for \$1.50. What were they buying?

207. ## Math

The measure of an angle's supplement is 44 less than the measure of the angle. Find the measure of the angle and it's supplement.

208. ## Physics

How much work does the electric field do in moving a 2 μC charge from a point with a potential of +20 V to a point with a potential of −20 V?

209. ## English

i've got to do research on these questions..grade 9 What does a learner do? What does a communicator do? What does a problem-solver do? What does a community member do?

210. ## math

what is [x]=x

211. ## Physics

Three positive particles of charges 1 μC, 2 μC, 3 μC, and 4 μC, are located at the corners of a square of side 1 cm. Calculate the potential in the center of the square, taking V = 0 at a great distance.

212. ## Math

Use the expression 12*12 to answer the question below A. Write the expression using exponential notation B. What is the base? C. What is the exponent? D. WRite the expression in expanded form. C?

213. ## Physics

(a) Find the capacitance of a parallel-plate capacitor made of two 5 cm×5 cm square plates separated by 1 mm. (b) If 50 V is applied to this capacitor, how much energy is stored?

214. ## civics

What are the main challenges to achieving justice in american society today and how can these challenges best be met?

215. ## Algr.2

10(line)2-4a(line)=20 Absolute value How do I solve this equation?

216. ## Algebra

Simplifying y^2 + 3 + 3(y^2+1) My answer is 4y^2+6 but the program I am using (Hawkes learning system) says it isnt correct. Any help would be greatly appreciated. I have even used several online calculators to verify and this is the answer they all come

217. ## social studies

what are the symbols of the six regions of kentucky?

218. ## algebra

Tanner earns a commission of \$1415.04 selling \$6432 worth of electronics. What is the commission rate?

219. ## Algebra 1

How many solution sets do systems of linear inequalities have? Do solutions to systems of linear inequalities need to satisfy both inequalities? In what case might they not?

220. ## Math

Which number has the greatest value 1. 86,543,712 2. 82,691,111 3.85,381,211 4.86,239,121

221. ## social studies

which of these is not like the others 1.John Winthrop 2.James Oglethorpe 3.William Penn 4.Roger Williams I think that it would be John Winthrop because all the rest started colonies which later became state names but i don't think that is sufficient

222. ## math

By selling a home without using a realtor, Barb can avoid paying a 7.25% commission. She received an offer of \$275,000 from a potential buyer. In order to give a comparable offer, for what price would a realtor need to sell the house? Round to the nearest

223. ## math

Perry's commission rate is 18%. He invests his commission from the sale of \$8000 worth of merchandise at an interest rate of 11%, compounded quarterly. How much is Perry's investment worth after 6 months?

224. ## chemistry

if 7.o moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the maximum amount of sulfur trioxide, how many moles of which reactant remain unused at the end?

225. ## Math/Algebra

y^2+6+2(y^2+5) My answer is 3y^2+16 (simplifying) but the hawkes learning system won't accept this answer. Am I missing something?

226. ## algebra

[-4b-8]+[-1-b^2]+2b^3; b=-2 please can someone explain

228. ## medical

According to the AMA, what is a key reason behind a physician's duty of confidentiality to a patient?

229. ## MATH!!!!!!!!!!!!!!!!!!!!!

10(line)2-4a(line)=20 Absolute value How do I solve this equation?

230. ## algebra

-(4h-1)/1+h; h=2 the 4h-1 is on top of 1+h please can someone explain

231. ## algebra

pi*7=7*pi would this be associate property of multiplication

232. ## physics

Hello everyone, I need help solving this question: Spiderman is running along the rooftops jumping from building to building. The distance between 2 buildings is 20m. What trajectory would be most efficient for him to jump at? At that angle,what must his

233. ## physics

Hello everyone, I need help with this question: A bartender slides a glass of beer down a bar with an initial velocity of 2m/s. The coefficient of kinetic friction of the bar is 0.05 and the length of the bar is 3m and the height of the bar is 1m. The mas

234. ## calculus

A 0.2 ml dose of a drug is injected into a patient steadily for 0.75 seconds. At the end of this time, the quantity,Q, of the drug in the body starts to decay exponentially at a continuous rate of 0.2 percent per second. Using formulas, express Q as a

235. ## math

What is a 72 times 50. My answer is 3,600

236. ## computer

pros and cons of traditional economy

237. ## Physics

Heather and Matthew walk eastward with a speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they walked? Answer in units of km

238. ## Algebra

The equation is 5= -z - 3 Why is the answer -8 and not just positive 8? Please explain the whole negative variable thing.

239. ## history

During the election of1936, declaring their party a "millionair's union," Franklin Roosevelt focused maimly on defending the

240. ## science

Find the horizontal and vertical components of the velocity of a cannonball 4 seconds after being fired horizontally at 400 m/s from the edge of a tall cliff.

241. ## CJS/240

Will someone please help me find a website to find the answers to the following? Write a 350- to 700-word paper comparing and contrasting the role of the defense counsel with that of the prosecutor. Include an explanation of prosecutorial discretion and

242. ## Multivariable Calculus

I was asked to state as a product of speed and unit vector a mass traveling at 1000ft/sec along the vector . I know that v/|v| gives me the unit vector, which is (1/2i, sqrt(3)/2j). Do I keep the speed as given?

243. ## Physics

Heather and Matthew walk eastward with a speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they walked? Answer in units of km

244. ## Physics

vertically up at 28m/sec, gravity 9.8 meters/sec^2 = what is max. height

245. ## Physics

Heather and Matthew walk eastward with a speed of 0.78 m/s east. If it takes them 29 min to walk to the store, how far have they walked? Answer in units of km

What are two major challenges and two major issues facing health care providers today?

247. ## history

The _________ expressed the darkest and most ominous aspect of the rural counterattact of the earlt 1900s.

248. ## Chemistry

The biomass formula for a yeast is CH1.66 00.269 N0.194. The formula accounts for 92% of dry mass; the other 8% is inorganic material (ash). When grown on C6H14, the yield on biomass is 1.4 gcell/gsubstrate. What is the respiratory quotient (mole CO2

249. ## physics

A car starts from rest and travels for 6.0 s with a uniform acceleration of +1.2 m/s2. The driver then applies the brakes, causing a uniform acceleration of -1.8 m/s2. The breaks are applied for 1.70 s. (a) How fast is the car going at the end of the

250. ## physics

An elevator is moving upward at 1.00 m/s when it experiences an acceleration 0.28 m/s2 downward, over a distance of 0.74 m. What will its final velocity be?

251. ## math

a patient has 8.5ml of blood drwan for testing. Convert this measurement into inches cube

252. ## Math

Pages in a book are numbered in typical fashion, starting with 1. The folio for page 10 will contain the tenth and eleventh digits necessary to paginate the book. On what page will the 2009th digit occur? Please Help!!! I have no idea where to begin

Find the greatest and least when rounded to the nearest hundred. A plane flew an estimated distance of 800 kilometers. The greatest distance the plane could have flown is? The least distance he could have flown is?

254. ## English 1101 composition & rhetoric

Put these sentences in order 1-6, based on whether it is the TS(1), GD1(2), SD1(3), GD2(4), SD2(5), CS(6), of a body paragraph in a five paragraph essay. A) Benson claims that the typical family eats together once a week now; a family having dinner

255. ## Science

Could someone help me list 15 thing that are not matter? Thanks

256. ## Logarithms

I need help evaluation the following: 1.) (1/15)^2.309 It says hint: set the expression = x and take the logs of both sides. I did: x=(1/15)^2.309 logx = log(1/15)^2.309 = 2.309 log(1/15) and I don't know how to proceed or if I'm on the right track. 2.)

257. ## insurance

As a rule of thumb, experts say that most married people should carry ______ times their net pay in life insurance coverage

258. ## Algebra I

1/2(1/2m-4) Use the distributive property to write an equivalent expression. Please explain the steps as well. Thank you. :D

259. ## physics

In the problem, please assume the free-fall acceleration g = 9.80 m/s2 unless a more precise value is given in the problem statement. Ignore air resistance. A stone is thrown vertically downward from the roof of a building. It passes a window 15.0 m below

260. ## physics

In the problem, please assume the free-fall acceleration g = 9.80 m/s2 unless a more precise value is given in the problem statement. Ignore air resistance. A stone is thrown vertically downward from the roof of a building. It passes a window 15.0 m below

261. ## physics

A car starts from rest and travels for 5.2 s with a uniform acceleration of +1.8 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. The breaks are applied for 2.00 s. (a) How fast is the car going at the end of the

262. ## Science

If on earth you weigh 420 newtons, and the gravitational pull on the moon is 1/6 of what it is on earth. What would be your weight on the moon?? Please show work Thanks!! :)

263. ## Scientific Question

Please help me check if I did my homework right base on a picture of picking strawberry farm. 1. Activity Investigation Picture Scientific Method: I. Perceiving the Problem Are these people a worker in a farm? II. Research a. Wearing different style of

264. ## science

the mass of a shot an Olympic shot putter throws should be measured in what

265. ## Biology

Produce a self portrait showing you carrying out the characteristics of life. Could you explain what exactly is expected of me.

266. ## English

Did help with finding the authors purpose and main ideas in this article "A Generation Hobbled by the Soaring Cost of College by Andrew Matin and Andrew Lehren in the New yOrk times

267. ## physics

A 49-kg lead ball is dropped from the leaning tower of Pisa. The tower is 55 m high. (c) What is the speed of the ball 1.3 s after it is released?

268. ## statistics

The mean of a normal probability distribution is 100 and the standard deviation is 8. About what percent of the observations lie between 84 and 116?

according to theory emoployees comparethe imputs and outputs of other employees doing similar jobs. unfavorable comparisons may lead to slacking offf on their work or asking a supervisor for either an explanation or a raise

270. ## organic chemistry

How is overall molecular polarity affected by molecular symmetry (specifically shown for alkenes in book)? And what are the consequences for melting and boiling points (in cases of high molecular symmetry versus low molecular symmetry)?