# Questions Asked onOctober 28, 2011

1. ## science

how many kilojoules of heat must be transferred to a 480 g aluminum pizza pan to raise its temperature from 22 degree c to 234 degree c? The specific heat of aluminum in this temperature range is 0.97 J/g degree C.

2. ## Calculus

Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully about what the meaning of this mathematical statement is. (a) Approximately what percent of American men are between 68.7 and

3. ## algebra

A rectangular piece of cardboard measures 17cm by 14cm. Strips of equal width are cut off one side and one end. The area of the remaining piece is 108cm^2. Find the width of the strips removed.

4. ## science

as 390 g of hot milk cools in a mug, it transfers 30,000 J of heat to the environment. What is the temperature change of milk? The specific heat of milk is 3.9 J/g degree C.

5. ## Geometry

Find the value of X: Given: segment RS is congruent to segement ST, measure angle RST = 7x-54, measure angle STU = 8x

6. ## physics

A stationary bicycle is raised off the ground, and its front wheel (m = 1.3 kg) is rotating at an angular velocity of 14.0 rad/s (see the drawing). The front brake is then applied for 3.0 s, and the wheel slows down to 2.7 rad/s. Assume that all the mass

7. ## chemistry

for the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluable salt. KCl, BaCl2, AgNO3, Pb(NO3)2, K2SO4, HNO3

8. ## PHYSICS

A bicycle with 0.80 -diameter tires is coasting on a level road at 5.6 . A small blue dot has been painted on the tread of the rear tire. a)What is the angular speed of the tires? b)What is the speed of the blue dot when it is 0.80 above the road? c)What

9. ## Chemistry

Predict the formal bond angles about the central atom for the following molecules: TeBr4 Express your answers using three significant figures separated by a comma. What are the bond angles for an octahedral structure and how many?

10. ## chemistry

One of the by-products of a reaction is 2-methyl-2-butene. A) Suggest a mechanistic pathway for the formation of this alkene. B) How is this by-product removed during the purification?

11. ## trig

guy wire is attached to a pole for support. If the angle of elevation to the pole is 67° and the wire is attached to the ground at a point 137 feet from the base of the pole, what is the height of the pole (round to 2 decimal places)?

12. ## science

a 425 g cylinder of brass is heated to 90/0 degree C and placed in a calorimeter containing 334 g of water at 25.0 degree C. The water is tirred and its highest temperature is recorded as 32.0 degree C. From the thermal energy gained by the water,

13. ## Calculus

The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 460 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 10 dollar increase in rent.

14. ## math

Jan says if you double each of the dimensions of a rectangular box, it will take twice as much wrapping paper to wrap it. How do you respond?

15. ## Chemistry

5.85 g of sodium chloride(NaCl) is dissolved in 250 mL OF solution. Calculate mass percentage of the solute.

16. ## English Composition

penn foster exam number 05054100 need all the answers.

17. ## physics

a 160g hockey puck slides horizontally along the ice, and the coefficient of kinetic friction between puck and ice is 0.15. if the puck starts sliding at 3 m/s before it comes to a stop it travels 3.6m how do you get to this answer?

18. ## calculus

tan−1(4x2y) = x + 5xy2

19. ## math

Jason earns 30 cents for every carrot he sells. He earns an extra \$3 for every 30 carrots he sells.How many carrots must he sell in order to earn \$555?

20. ## Math

Mr.Santiago brought 10 crates of oranges. There were 50 oranges in each crates. He sold 65% of them. 8% of the remainder went bad, and he threw them away. A) How much money did Mr.Santiago earn if he sold the oranges 5 for \$1.20 B) If he made \$24.15 by

21. ## Calculus

A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 47 feet?

22. ## physical science

assume that a parcel of air is forced to rise up and over a 6000 foot high mountain. The intial temperature of the parcel at sea level is 76.5 F, and the lifting condensation level (lvl) of the parcel is 3000 feet. The DAR is 5.5 F/1000 and the SAR is 3.3

23. ## math

An arcade uses 3 different colored tokens for their game machines. For \$20 you can purchase any of the following mixtures of tokens: 14 gold, 20 silver, and 24 bronze; OR, 20 gold, 15 silver, and 19 bronze; OR, 30 gold, 5 silver, and 13 bronze. What is the

24. ## implicit differentiation HELP

x^3 + y^3 = 6xy At which point is the first quotient of the tangent is horizontal?

25. ## computer networking

You have been asked to help upgrade the LAN at a very successful CPA firm with five departments in one building and a total of 560 employees. Although the firm's employees understand accounting, they haven't spent much time improving their network.

26. ## Chemistry

Calculate the mass of solid neded to make 500ml of solution that is 0.25m in sulfate ion, using sodium sulfate decahydrate.

27. ## math/ algebra?

a lab technician draws a sample of blood. A cubic millitmeter of the blood contains 22^3 white blood cells and 22^5 red blood cells. What is the ratio of white blood cells to red blood cells?

28. ## Statistics

The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between \$21 and 36 per share.Exercises What is the probability that the stock price will be: (a) More than \$28

29. ## biology

why is glucose converted into hexose bisphosphate in glycolysis ??

30. ## chemistry

a 100 cm cube gas cylinder filled with chlorine under 160 torr pressure is connected by stop clock with another cylinder of 400 cm cube filled with nitrogen under pressure of200 torr. what will be total pressure when stop clock is opened?

31. ## chemistry

a 100 cm cube gas cylinder filled with chlorine under 160 torr pressure is connected by stop clock with another cylinder of 400 cm cube filled with nitrogen under pressure of200 torr. what will be total pressure when stop clock is opened?

32. ## physics

A woman stands on a scale in a moving elevator. Her mass is 57.0 kg, and the combined mass of the elevator and scale is an additional 811 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force

33. ## math

A draw contains 3 black socks and 2 white socks. A sock isdrawn at random and then replaced. Find each probability. p(2 black) p(black, then white) p(white, then black) p(2white)

34. ## Chemistry

Describe what a chemical bond is in terms of electron density between two atoms. What are the bond angles for an octahedral structure and how many? Predict the formal bond angles about the central atom for the following molecules: TeBr4 Express your

35. ## Geometry

Two parallel chords of lenght 24cm and 10cm which lie on opposite side of a circle are 17cm apart. Calculate the radius of the circle to the nearest whole number.

36. ## math

The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

37. ## Calculus

A fence 4 feet tall runs parallel to a tall building at a distance of 6 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

38. ## geometry

Triangle ABC with an area of 243 cm2 is similar to WXY. If BD = 18 cm and XZ = 4 cm, what is the length of segment WY?

39. ## biology 1

what kind of elecrtical charge is found on the oxygen atom of a polar water molecule

40. ## Commerce

Antique Arts Company would pay Rs. 2.50 as dividend per share for the next year and is expected to grow indefinitely at 12%. What would be the equity value if the investor require 20% return?

41. ## data management

1) solve: a) (2n+1C2) = (nC2)sqaured b) 12(nC2) = n!

42. ## Calculus

A cylinder is inscribed in a right circular cone of height 5.5 and radius (at the base) equal to 7. What are the dimensions of such a cylinder which has maximum volume?

43. ## calculus

Find all values of a such that y=a/(x−8) and y=x^2−16x+64 intersect at right angles? please how the steps :)

44. ## chemistry

Ethanol and carbon dioxide have approximately the same molecular weight, yet carbon dioxide is a gas at STP and ethanol is a liquid. How do you account for this difference in physical property?

45. ## geometry

a phone company charges a flat monthly fee of \$15 for cell phone services, plus an additional fee for every minute you talk. in a given month, you are charged \$36 for the 24 minutes you talked( not including the \$15 flat fee.) let the total cost be c(in \$)

46. ## Science

Calculate the pressure exerted on your finger if you hold up a 15-pound box of apples.

47. ## science

A scientist wants to make a solution of tribasic sodium phosphate, , for a laboratory experiment. How many grams of will be needed to produce 350 of a solution that has a concentration of ions of 0.500 ?

48. ## English

This is a final essay. Can someone please read over it and let me know where they think I need improvement. Even though People feel as if their past debt management mistakes should not count against them, credit scores are a fair measure to help lenders

49. ## math

ray makes an array that has 4 rows of 4 counters. he wants to make two more arrays using the same number of counters. he wants more than one counter in each row. what two arrays can he make?

50. ## PHYS

The fundamental resonance on a string is 60 cm length fixed at both ends is 440Hz. What is the speed of a wave traveling on this string?

51. ## Immigration Essay Help?

Can anyone give me a start to my essay? I'm really having trouble starting off the topic sentence. It's about immigration, coming to America. Thank you so much. -Allyson

52. ## Greetings

I have a Agility ladder and I do what called fast feet all the way down explain this drill. Physical Education

53. ## Chemistry

You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M NaOH. Determine the molar mass of the acid.

54. ## Calculus

Use implicit differentiation to find the slope of the tangent line to the curve 2(x^2) + 2xy + 2(y^3)= -18

55. ## math

The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

56. ## Physics

An arrow is shot at 29.0° above the horizontal. Its initial speed is 54 m/s and it hits the target. (a) What is the maximum height the arrow will attain? (b) The target is at the height from which the arrow was shot. How far away is it?

57. ## Calculus

(y/(x+9y))= (x^2)-7 at the point (1, -6/55) Use implicit differentiation to find the slope of the tangent line to the curve

58. ## Physics

An arrow is shot at 29.0° above the horizontal. Its initial speed is 54 m/s and it hits the target. (a) What is the maximum height the arrow will attain? (b) The target is at the height from which the arrow was shot. How far away is it?

59. ## Statistics

Could someone help out with this question. The answer is 1842, but i'd like to know how to solve it. Thanks BCC wants to estimate the proportion of its students who are single parents. How many students should BCC survey if it wants to be 99% confident

60. ## calculus

Find all values of 'a' such that y=a/(x−9) and y=x^2−18x+81 intersect at right angles. show steps please :)

61. ## science

What are some synonyms for the word remediation? I looked in the dictionary but do not see any comparsion to the words correction, deficiency or maintenance, assessment. Could any of these words be a A synonym for remediation?

62. ## math

a figure skater must trace a figure eight on the ice that consists of two perfect circles, each with radius 11 feet. How far does the skater go one time around the figure eight?

63. ## Biology

1) What is the minimum number of single nucleotide substitutions that would be necessary for each of the following amino acid replacements? a. trp -> lys b. met -> his c. tyr -> gly d. ala -> asp   2) A mutation is isolated that can not be induced to

64. ## Geography

If the time of town A along 75W is 5:00pm on friday what the time and day be at town B (along 120E)

65. ## Calculus

A fence 2 feet tall runs parallel to a tall building at a distance of 6 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

66. ## Math

A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (editing) and variable costs (printing). One time fixed cost will total \$76,322. The variable costs will be \$10 per book. The publisher

67. ## calculus

5) Find the points on the curve below at which the tangent is horizontal. Use n as an arbitrary integer. (Select all that apply.) y=Sin(x) / 2+ Cos (x)

68. ## Math

Maria has \$5.05 in quarters and dimes. The number of quarters exceeds twice the number of dimes by 1. Find the number she has of each kind.

69. ## physics

a 50 kg person has a weight of 80 N on the surface of the moon what is the acceleration due to gravity

70. ## biology194

compare the regulatory roles of LH and FSH?

Bob is reading a 300-page book. After one hour, he had finished 8% of the book. Assuming that he reads at a constant rate, how many more hours will it take him to read the rest of the book?

72. ## physics

A 31.0 kg object slides down a slope which is inclined at an angle of 20.0o to the horizontal. What is the normal force exerted by the slope?

73. ## chemistry(reacting masses)

it is given that there are 2moles of nitrate ions and 1.2moles of iron(II)ions in a mixture of iron(II)nitrate and iron(II)carbonate.Calculate the number of moles of carbonate ions.

74. ## Opinion

Generally speaking, what can we learn from a society's villains faced by its heroes that we can't learn from its heroes? Is it easier for you (personally) to understand what a villain represents than a hero? On a similar note, do you think it's easier to

75. ## chemistry

Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 2.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?

76. ## Math

Can someone help me with this problem? Find the equation of the tangent line to the curve: f(x)=x^2, a. Parallel to the line y = 8x + 2 b. Perpendicular to the line y = 8x + 2

77. ## Physics

An astronaut in outer space pushes himself away from his spaceship. About how far does the astronaut go before stopping? What does the astronaut have to do to stop himself?

78. ## Physics

A car is moving at 20 m/s. The driver applies the brakes and the car decelerates at 1 m/s2. How long will it take the car to stop and how far will it travel until it stops

79. ## Chemistry

You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M NaOH. Determine the molar mass of the acid.

80. ## physics

If two different masses have the same kinetic energy, their momenta are: 1. inversely proportional to their masses 2. inversely proportional to the square roots of their masses 3. proportional to the squares of their masses 4. proportional to their masses

81. ## geometry

The perimeter of a rectangle is 42m , and the area of the rectangle is 54m^2 . Find the dimensions of the rectangle.

82. ## Chemistry

You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M NaOH. Determine the molar mass of the acid.

83. ## Algebra

Find the value of C such that the graph of 3x+c=5y has an x-intercept of (-4,0)

84. ## Calculus

f(x)= 6ln(2x+7ln(x)) I need to find the first derivative.

85. ## social work

My Question is “ What is a mediation model” Locate and read an article in the University Library related to a mediation model. Write a 350-word summary of your article. Be sure to address the following your summary: • Identify the setting and

86. ## EED 364

1) Observe an elementary mathematics lesson. Write an essay of 1,500-1,750 words that addresses the following issues and summarizes your observations: a) What is the importance of having standards in mathematics? How do standards improve mathematics

87. ## biology

list two types of active transport that use specific protein recognition

88. ## math

The sum of the first 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

89. ## maths

A swimming pool has two identical sides in the shape of a trapezium. All other sides are rectangular. The length of the pool is 12m. The width of the pool is 4m. The depth of the pool is 2.1m at the deep end and 1.1m at the shallow end. Rafa fills the pool

90. ## physics

A rocket of mass 4.45E+5 kg is in flight. Its thrust is directed at an angle of 51.1° above the horizontal and has a magnitude of 7.64E+6 N. Calculate the magnitude (enter first) and direction of the rocket's acceleration. Give the direction as an angle

91. ## Chemistry

Quantum numbers: What are the n values that are allowed? I put 1,2,3,4, etc. For the first four of these, indicate the l values allowed. n=1 l = 0 n=2 l = 0,1 n=3 l = 0,1,2 n=4 l = 0,1,2,3 Are these correct?

92. ## science

Considering human beings as part of the natural web of life, rather than managers of it. What is this called?

93. ## First Nations

Just wanna know, when did the first nations finally get the vote in Canada?

94. ## physics

A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. 1 J (b) Determine the work done by the normal force exerted by

95. ## Chemistry

How do you find the number of bond angles for an octahedral structure? I believe it's more than one answer

96. ## english

can somebody tell where the poetic devices are located in the song cant take that away by mariah carey? such as metaphor, mood paradox etc. Mmmmh Whoaaa They can say, Anything they want to say, Try to bring me down, But I will not allow anyone to succeed

97. ## english

is " but I will not allow anyone to succeed hanging clouds over me" a metaphor or paradox or is it something else? is "there's a light in me, that shines brightly" a metaphor? " Iwill rise steadily sailing out of their reach" a paradox? if im not right can

98. ## central science

what is the velocity of a plane that is 475m above the ground, if it drops a dead cat and the cat hits the ground 850m horrizontally from where it is droped

99. ## chem

Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 11.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?

100. ## computers

Which of the following devices allows a computer to communicate with other computers via the phone lines?

101. ## social work

Assignment reads Locate and read an article in the University Library related to a mediation model. Write a 350-word summary of your article. Be sure to address the following your summary: • Identify the setting and populations most appropriate for the

102. ## America history

In virgina,colonists who could pay their way across the atlantic were granted 50 acres of land to lease for a modest rental fee.the term fro such an arrangement was called?

103. ## HELP

subtract simplify by removing factor of 1 if possible 3bc/b^2-c^2-b-c/b+C

104. ## MATH

A town decides to build a playground using one of the existing walls beside an elementary school. What is the maximum area they can enclose using only 100ft of donated fence?

105. ## physics

A 20kg block is being pulled by a 150N force,the block is initially at rest,if the coefficient of frictionbetween the block and the surface is 0.3,find (a)the normal force,(b)the friction force acting on the block,(c)find the acceleration of the block

106. ## Algebra 2

When x² - 3x + 2k is divided by x + 2, the remainder is 7. Find the value of k. Use synthetic division to do so.

107. ## calculus

The average value of y = v(x) equals 3 for 1 x 3, and equals 14 for 3 x 12. What is the average value of v(x) for 1 x 12

108. ## derivatives

How do you find the derivative of (6 csc x)/x?

109. ## trignometry

how to find derivative of (2+cotx)/(7-tanx)

110. ## Algebra

pam scored 78 on a test that had 4 fill-in questions worth 7 points each and 24 muliple choice questions worth 3 points each. She had one fill-in question wrong. How many multiple-choice questions did pam get right?

111. ## Math

The market trades in three fixed-income securities: A, B, and C. Security A is a 2-year bond paying 40 at date 1 and 80 at date 2. Security B is a 1-year bond paying 50 at date 1. Security C pays 30 at date 1 and 40 at date 2. Prices are pa=100, pb=45 and

112. ## Maths - Circular Motion

One end of a string of length 1m is attatched to the rim of a 2m radius disc while the other end carries a mass of 5kg. If the tension in the string may not exceed 300N. find the maximum speed w in radians/sec and the corresponding angle of inclination of

113. ## Maths : circular motion

1. A 3 metre piece of string is threaded through a hole in the table. If equal portions of the string are above and below the table, and the top mass of 2kg rotates at 1rev/sec , how fast does the bottom mass of 1kg rotate? (in rev/sec) 2. If, in the above

114. ## Sociology

I would like to get a better understanding of Emile Durkheim's suicide study and its importance for a test next week.

115. ## social science

compare the believe systems of the khoikhoi with the early african farmers focus on the moon, singing and dancing, musical instruments and story telling

116. ## calculus

find the equation of the tangent line for (xy)^2+(xy)-x=11 at the point (-11,0)

117. ## maths

whqt is the answer for i am a number .go round the corners of the given figure times.when you my value with the number of corners you have crossed you get 46

118. ## Social Studies-Amrican History

British Taxes - The student will evaluate the cause and effect relationship of British tax policies concerning the colonies. In March 1765, the British parliament announced a stamp tax. Starting that November, American colonists would be charged taxes on

119. ## Calculating Chi Squared

I did a biology experiment and I have to use the chi^2 method to calculate statistical significance. I got data at different time points and I just want to make sure what I'm calculating this right. The data I got for one time point are 6 and 23 I know the

120. ## science

Do factors such as temperature, humidity, and air movement make it easier to analyze and measure air pollution?

121. ## science

When chronic asthma is caused by air pollution what is this likely because of?

122. ## statistics

What percentage of the area would the empirical rule say is between -3.00 and +3.00

123. ## Biology

Which of the following is not a benefit of genetic counseling: a.It helps identify parents at risk for having children with genetic defects. b.It assists parents in deciding whether or not to have children. c.It is based exclusively on family pedigrees.

124. ## social studies

How are public policy decisions made? Are the made based on what voters want? Are they made to avoid risk entirely or do they involve a balance of risk and benefits? Or do they include substantial risk? I am not sure.

125. ## English

Could someone pleasr proofread this for me one last time? Even though people feel as if their past debt management mistakes should not count against them, credit scores are a fair measure to help lenders estimate potential risk because a credit score can

126. ## physics

Consider the window (of area 0.68 m2) of an airplane. If the pressure inside the plane is atmospheric pressure, while the pressure outside is 31 % of Patm, find the force on the window. Ignore the velocity of the airplane (i.e., ignore Bernoulli’s

127. ## math

1. You have \$55000 to invest, and two funds you would like to invest in. The You-Risk-It Fund yields 13% interest. The Extra-Dull Fund yields 7% interest. Because of the college financial aid implications, you don’t think you can afford to earn more than

128. ## data management

1) show that a) 2(2n-1 C n-1) = (2n Cn) b) n(2n C n) = (n+1)(2n C n+1)

129. ## help

find all numbers for which the rational expression is undefinded 8/8z+7 I think the expression is undefined for all real numbers

130. ## Math

I really need help with these questions I am very confused !!! 16^-1(2^5) 3^-26^-2+3/2(-9)^-1 (5^0+5^2)^-1

p(x)+q(x) and p(x)-q(x),where p(x)=x3-2x2(square)-3 and p(x)=x4+x3+x2-7x

132. ## science

a bullet has a momentum of 20kg*m/s -How fast would a car weighing 1200 kg should be moving to have the same momentum as the bullet expressed in miles/hr?

133. ## Biology

i really need help i am so stuck!! use the crossover values given to calculate the sequence and the distnace apart of the genes indicated p-m 7% K-M 28% p-k 21% m-C 5%

134. ## Help

Find the LCM t^3+8t^2+16,t^2-8t

135. ## Help

simplify by removing factor of 1 7z-49/7z I have the answer as -7

136. ## Help

Divide and simplify x^2-16/x divide by x+4/x+1 I get (x-4)(x+1)/X is this correct

137. ## checking if i paraphrased correctly

I was wondering if I paraphrased correctly. The original article is:(my work is at the end ) Known as the "Napoleon of the women's rights movement," Susan B. Anthony was the co-founder (with Elizabeth Cady Stanton) of the National Woman Suffrage

138. ## Statistical significance

I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light

139. ## abnormal psychology

I need a reputable scholary web site that well explain the theoretical perspectives in maladaptive behavior

140. ## math

1. You have \$55000 to invest, and two funds you would like to invest in. The You-Risk-It Fund yields 13% interest. The Extra-Dull Fund yields 7% interest. Because of the college financial aid implications, you don’t think you can afford to earn more than

141. ## calculus

find max and min of e^x-e^(3x) on interval where x is greater than or equal to 0 and less than or equal to 1

142. ## Math

Solve the linear equation. Solve for x and y y=-3/4x + 1/4 y=3/4x - 3/4

143. ## statistics

Find the value of zα/2 to construct a confidence interval with level: a. 95% b. 98%

144. ## statistics

the average patient lasts 45 minutes on the tilt table. the current patient only lasted 15 minutes. if the standard deviation is 5 minutes. The Zscore that represents the current patients time of 15 minutes should be.

145. ## Math

Find three ordered pairs that satisfy the equation. y = x+2 (0,1)(0,3)(2,0)

146. ## algebra

88 is 80% of what?

147. ## physics

A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20 degrees C to 1000 C. If the starting temperature assuming the compartment remains closed?

148. ## Physics

A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68 F to 1500 F. If the starting pressure was 1 atmosphere, what volume is present at the elevated temperature assuming the compartment has openings to

149. ## biology

what is the promoter sequence for transcription? in regards to nucleotides

150. ## Composition

For this assignment you are to look at the ways courtship rituals have (or have not) changed over the last generation or two. In order to do this, you will be required to spend some time interviewing a parent, grandparent, or another member of an older

151. ## Science

Is genetic engineering the answer to ending global hunger?

152. ## science

What pressure is exerted at the bottom of a tube of mercury 15 cm high?

153. ## physics

a 2500kg truck applies a force of 4000 N to the road to accelerate forward. What is its rate of acceleration?...can someone please help? I got half way and then got really confused what do I do? Thanks

154. ## history

what did a diet at the asclepion consist of?

155. ## history

what treatments (natrual) would you find at the Asclepion?

156. ## math

what is the highth of a 30 in.tv that has the width of 24 inches?

157. ## math

How do I estimate 791 divided by 38 and use compatible numbers if necessary

158. ## chemistry

If you have a solution that is 1.7 M sodium chloride and you have 1 L of that solution, how many moles of sodium chloride do you have?

159. ## English

I need to know what just means in the following Sentance . Do you think this is just Please help even my mom is blank Tx

160. ## math

x + y = 4 , x + z = 4, y + z = 4

161. ## science

does it take 96 percent less energy to make an aluminum can from recycled materials than it does to process it from new materials?

162. ## physics

A 71.0 kg person steps on a scale in an elevator. The scale reads 722 N. What is the magnitude of the acceleration of the elevator?

163. ## statistics

Given x = 237;u=220 and s = 12.3 find z Help to at least start this

164. ## MATH

3X-2Y=-27 7X+85=Y

165. ## Biology 110

by means of a chemical equation, show how the body rids itself of the major end-products of metabolism. Please explain.

166. ## Physics

If the pressure outside a window drops by 9.1%, while the pressure inside does not change, what is the force on the window? Assume that the area of the window is 2.3 m2.

167. ## Biology 110

True or false 1. Warm temp increase the release of CO2 from hemoglobin in the peripheral circulation. 2.Exchange of respiratory gases is by diffusion as a result of concentration gradient. 3. Residual air is necessary to maintain patent alveoli and prevent

168. ## Biology 110

Displacement of O2 from its respiratory pigment: A. occur more rapidly in cold temp. B. occur more slowly when Ph alkaline. C. occur more slowly when O2 tissue level low. D. none of these.

169. ## statistics

can normal standard distribution have two modes?

170. ## Math

If a is the greatest common factor of 72 and 48, and if b is the greatest common factor of 108 and 144, what is the least common multiple of a and b

171. ## trig

(3 tan^2x-1)(tan^2-3)= 0 can someone please explain how to do this problem and then explain the whole pie thing at the end...like, this is suppose to equal pie/6 b/c it's tan...im soooo confused.....

172. ## math

Risa ( 2/3 Hours ) Kerri ( 1 1/2 Hours) Risa finished her workout just as kerri started hers. How long did it take from the time Risa started until Kerri finished?

p(x)+q(x) and p(x)-q(x),where p(x)=x3-2x2(square)-3 and p(x)=x4+x3+x2-7x

174. ## science

The kinetic energy of a baseball weighing 0.5 kg in its mid flight is 100 J. How high one needs to take the same ball so that it has the same potential energy?

175. ## grammar

find italicized test

176. ## Help

Solve a-1 a²-11 -4 = a+4 a+4

177. ## natural disaster

if volcanos and earthquakes, why do people choose to live in the area where it occurs the most?

178. ## Help

Solve the equation q+7/4+q-3/3=5/2 I think there is no solution

179. ## HELP

simplify remove factors of 1 3v-9/3-v

180. ## math

the diagram shows the x is the radius of the large circle and the diameter of the snall circle.

181. ## trig

given the following values, what is angle B? A= 46 degree b= 4 c= 8

182. ## Psychology

It may be difficult to sooth a crying baby who needs to befed and changed with cuddling and toys. The strengthof the physical needs in this situation support: Would the answer be B- the incentive approach to motivation

183. ## collefge

At what volume of added acid is the ph calculated

184. ## Physics

A woman drops a basketball, how far does it fall in one second? use formulas

185. ## Math

Simplify: 125•24divided by 6 + (8-1) Is 507 the correct answer?

186. ## math

Graph the line! y=5x+2 the plot point that i came up with are (0,2)(2,8) is this correct?

2 3(2x + 5)

188. ## algebra

Simplify -9-(-3)

189. ## physics

a bag weighing 9.4kg is dropped 1m onto concrete, what is the impact force in kg

190. ## physics

if a bag weighing 9.4 kg is dropped 1m to someone below to catch,what is the total weight that the person would actually catch??