# Questions Asked onSeptember 26, 2013

1. ## calculus and vectors

A traffic sign is hanging from two wires. If the weight of the sign is 35 N, what are the tensions in the two wires as shown below? (# in degrees) --------------------- \ 56 45/ \ / \ / \ /

2. ## Physics

David is driving a steady 24.0m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.90m/s2 at the instant when David passes. How far does Tina drive before passing David? What is her speed as she passes him?

3. ## math

if a gardener fences in the total rectangular area shown in the illustration instead of just the square area,he will need twice as much fencing to enclose the garden.how much fencing will he need ?

4. ## Physics

Air resistance acting on a falling body can be taken into account by the approximate relation for the acceleration: a= dv/dt = g - kv, where k is a constant. (a) Derive a formula for the velocity of the body as a function of time assuming it starts from

5. ## U.S. Government and Economics

I need two examples of someone being a producer I know producers produce goods and services, but I can't think of any examples. Help plz.

6. ## Math

Sarah bought 8 folders and 3 rulers. Lea bought 8 rulers and 3 folders. Sarah paid \$1.25 more than Lea. How much was each folder if each ruler was .45 cents

7. ## AP Chemistry

Calculate the standard cell emf for galvanic cells with the cell reaction 2H2(g) + O2(g)→2H2O(ℓ)in acidic solution. Answer in units of V

8. ## MATH

20% books in the library is fiction books and the rest were non fiction books.when 30% of the fiction book and 15% of non fiction books were borrowed,there were 1132 books left.How many books was borrowed?

9. ## chemistry

what are the products of the equation Al(s)+HCl(aq)AlCl3(aq)H2(g)?

10. ## social studies

Customer service is an example of _____________. a. price competition. b. non-price competition. c. a monetary incentive. d. a non-monetary incentive B

11. ## Calculus

Determine whether Rolle's Theorem can be applied to f on the closed interval [a,b]. If Rolle's Theorem can be applied, find all values of c in the open interval (a,b) such that f'(x)=0. f(x) = x^(2/3) - 1 [-8,8] I plugged in both values and found out that

12. ## math

4xy(1/2y+3/2x)= ? a. 2x + 6y b. 2x + 12y c. 4x + 6y d. 4x + 12y e. 4x - 12y please answer and explain

13. ## physics

A car exciting the highway moving at 27 m/s slows down at the rate of 3.5 m/s^2 to a final velocity of 18 m/s. Calculate the distance the car travels while braking?

14. ## programming

Grades are assigned on the standard 90, 80, 70, 60 scale. You are to write an algorithm which will receive a student name and a percentage grade and display the letter grade to be awarded

15. ## Reading The Scarlet Ibis help

The only character who believed in doodle throughout the story of the Scarlet Ibis was Daddy Mama Aunt Nicey The narrator Is it Aunt Nicey?

16. ## social studies

When God said "bind them for a sign on your hands," what does he mean Thanks, Lawyer

17. ## Physics

Two people pull as hard as they can on ropes attached to a boat of mass 200 kg. If they pull in the same direction, the boat has an acceleration of 4 m/s^2. what is the force exerted by each person on the boat? Disregard any other forces on the boat.

18. ## Physics

I must show my work for full credit. I need help on this question. I don't need answers, but could you help me figure it out. Thanks A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0

19. ## physics

Several people are riding in a hot-air balloon. The combined mass of the people and balloon is 284 kg. The balloon is motionless in the air, because the downward-acting weight of the people and balloon is balanced by an upward-acting 'buoyant' force. If

20. ## French

Hello, I am taking a French course online and i just want someone to check some of my work from time to time to make sure i am doing it correctly and to give me any tips they may have. What i have copy and pasted below took me awhile to get so i just

21. ## english

Read “Witty Ticcy Ray” by Oliver Summarize the main points of this reading.Possible points to reflect upon for your reflection paper and for workshop discussion are: 1)Ray has been diagnosed with Tourette’s Disorder, a neurological disorder which

22. ## Physics

A plane, diving with constant speed at an angle of 52.0° with the vertical, releases a projectile at an altitude of 790 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive

24. ## english

Give two examples of each of the following elements of fiction and nonfiction from the texts you’ve read in Units 1, 2, and 3. Characters: Plot: Conflict: Setting: Point of View: Theme: Style: Tone: Perspective: Bias: here r the texts 1. I stand here

25. ## math

A. Find 3 pairs of numbers for which the least common multiple equals the product of the the 2 numbers. B. Look at the pairs of numbers you found in part a. What is true about all 3 pairs of numbers?

26. ## Math

The diagram below represents black and white floor tiles at a size of five by five. If you add to this pattern to make it six by six, how many black tiles would you add to the existing pattern? I don't know how to solve it, at first I guessed 12 black

x/2=3(x-5)

28. ## Special Education Setting Teachers Aide

children with a language or speech disorde are A)sometimes suffering from an aphasia.(my answer) B)always learing challenged. C)able to receive special help only after the third grade. D)unable to use communication boards. can someone please check if this

29. ## Study Test- Need help to do good on real test!!!!!

A study wants to examine the relationship between student anxiety for an exam and the number of hours studied. The data is as follows: Study Hours 1 6 2 8 5 1 4 6 5 2 Student Anxiety Scores 5 10 5 11 12 4 3 2 6 1 1.Why is a correlation the most appropriate

30. ## Calculus

Snow is falling vertically at a constant rate of 8.0 m/s. At what angle from the vertical do the snowflakes appear to be falling as viewed by the driver of a car traveling on a straight, level road with a speed of 50k.h?

31. ## Algebra

Simplify radical terms, including fraction power expressions. Review the expression below and describe how to simplify the expression: ã100 Please help, I just do not know how to describe this.

In hanging fire the recurring line "and momma's in the bedroom with the door closed" creates a feeling of Confidence Connection Isolation Poverty Is it Isolation?

33. ## English

If the main character in a story struggles against the subzero cold of the Arctic, what kind of conflict is taking place? A. internal B. symbolic C. external D. generational Is it A????

34. ## English

Literary Analysis: Character and Characterization Read the selection. Then, answer the questions that follow.People who don’t know Harry tend to underestimate him. They cast a skeptical eye on his typical outfit: ragged jeans and shirts that bear

35. ## English

Two men glare at each other. Then, a tree falls and pins them both to the ground. What kind of conflict exists in both situations? A. symbolic B. external C. internal D. natural Is it C?

36. ## AP Chemistry

For the reduction of Cu2+by Zn, ∆G◦=−212 kJ/mol and E◦= +1.10 V. If the coefficients in the chemical equation for this reaction are multiplied by 2, ∆G◦=−424 kJ/mol. This means E◦= +2.20 V. True or false?

37. ## Math

Help! Plz 3/4(x)=8

38. ## stat

Given the Variable X measured at a Nominal Level, what descriptive statistical indice would you give if asked to provide the most representative value of the se

39. ## physics

Jane and John, with masses of 54kg and 63kg , respectively, stand on a frictionless surface 11m apart. John pulls on a rope that connects him to Jane, giving Jane an acceleration of 0.82m/s2 toward him. Part A What is the magnitude of the John's

40. ## algebra 1

Tell whether each number in the list is a real number, a rational number, an irrational number, an integer, or a whole number. square root 3, 5.5, negative square root of 16,and 0

41. ## Math

a house with dimensions 52 ft x 40 ft sits on a lot that is 90 ft x 120 ft. How many bags of grass seed would it take to cover the lawn, which includes the entire area of the lot except where the house stands, if one bag is advertised as covering 800

42. ## Geography (Ms. Sue)

What characteristic do the members of Mercosur share in terms of location?

43. ## math

screen sizes (TVs, computers) are given by measuring the length of the diagonal. If the base length of a 40-inch TV is 32", what is the surface area of the TV screen? (think about what you need to know to compute the area of a rectangle)

44. ## physics

A ball dropped from a sixth floor window accelerates at 10 m/s After 2 seconds it hits the ground. It bounces back with a velocity of -15 m/s. What is the ball’s velocity when it hits the ground? What is the change in velocity of the ball when it

45. ## Math

Which is greater 6.7km or 670m?

46. ## Chemistry

one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.31kg of magnesium. How much fluorine (in grams) did the second sample produce?

47. ## English 10 Honors

I need help figuring out what the theme of the poem Family "Heirlooms" by James Tate

48. ## SS

Banks most help grow the economy because ______________. a. they provide loans for consumers and investors. b. they are difficult to steal from. c. they are backed by the federal government. d. they offer both checking and savings accounts. A Labor unions

49. ## AP CHEM

It was found that 39.9 mL of this diluted solution solution was needed to reach the stoichiometric point in a titration of 7 mL of a phosphoric acid solution according to the reaction 3KOH(aq) + H3PO4(aq) ! K3PO4(aq) + 3H2O(L) Calculate the molarity of the

50. ## physics

A ball dropped from a sixth floor window accelerates at 10 m/s^2 After 2 seconds it hits the ground. It bounces back with a velocity of −15 m/s 1.find the height from which the ball was dropped. 2. How high did it bounce?

51. ## math

y+y^2+(y+y)^2= ? a. y^2 + 5y b. 2y^2 + y c. 3y^2 + y d. 5y^2 + y e. 4y^4 + y^2 + y please answer and explain

52. ## Math

A popular toy for the upcoming holiday season comes in one of 6 different colors, with one of 10 different costumes, and with one of 4 different accessory sets. A store plans to display 10% of all possible combinations. How may different combinations of

53. ## math

Its a word problem and I have a hard time understanding word problems. Patsy has cheerleading practice on every fourth school day. She wants to be in the school play, but they have practice on every sixth school day. If both started on September 5th what

55. ## biology

This is a Independent and Dependent Variable questions. If leaf color change is related to temperature, then exposing plants to low temperatures will result in changes in leaf color.

56. ## math

Jim ate 3/8 of a pie and jung ate 0.25 of the same pie. Shade the amount that jim and jung ate. Who ate more pie.

57. ## CHEMISTRY

The extracellular concentrations of Na+ and K+ are 135mM and 6mM, respectively. The intracellular concentrations of Na+ and K+ are 10mM and 105mM, respectively. The membrane potential is 75mV. For Na+/K+ ATPase, 3Na+ are exported and 2K+ are imported.

58. ## Math

How do you draw 56 degrees 10 minutes and 26 seconds on paper? protractor ? circle? clock? any website that helps this type of construction? the minutes and seconds threw me off....

59. ## Algebra

f:R→R is a function satisfying f(2x+1)=4x^2+4x. So what is the value of f(12)?

60. ## Algebra

How many positive integers are there such that ⌊√x⌋=10? My answer was 11 but somehow that was wrong.

61. ## Math

3 5/9 divide 4 4/9

62. ## Combinatorics

Bernie's Breakfast Buffet has a wide selection of breakfast food available. They have 4 types of cereal, 5 types of fruit, and 6 styles of cooked eggs. How many different ways can someone choose a breakfast consisting of one type of cereal, one piece of

63. ## Combinatorics

Bernie's Breakfast Buffet has a wide selection of breakfast food available. They have 4 types of cereal, 5 types of fruit, and 6 styles of cooked eggs. How many different ways can someone choose a breakfast consisting of one type of cereal, one piece of

64. ## Early Childhood Literacy

A family-teacher study meeting should NOT include: A. classes on setting up a home library. B. information about the importance of play. C. a “make it/take it” class on homemade reading materials.D. a teacher-parent conference.

65. ## Physics

what is the relationship between forces in equilibrium and their components?

66. ## Physics

what can be the source of error in lab of forces equilibrium,force board lab?

67. ## math

For numbers 10-13 find 2 pairs of numbers with the given number as their least common multiple. 10. 10 11. 36 12. 60 13. 105

68. ## math

last question 1/2[4x+6x(2+2x)]= ?

69. ## physics

what is the magnitude of the average acceleration of a skier who starting from rest, reaches a speed of 8.0 m/s when going down a slope for 5.0 sec? how far does the skier travel in this time?

70. ## MATH

WHAT IS 8,042,176 IN WORDS?

71. ## statistics

Most Americans, 75% in fact, say frequent handwashing is the best way to fend off the flu. Despite that, when using public restrooms, women wash their hands only 67% of the time and men wash only 46% of the time. Of the adults using the public restroom at

72. ## math

Ads not by this Site For numbers 10-13 find 2 pairs of numbers with the given number as their least common multiple. 10. 10 11. 36 12. 60 13. 105

73. ## mathematics

Which number is equivalent to 0.00000001: 10 to the seventh power or 10 to the negative seventh power? How do you know?

74. ## Physics

David is driving a steady 24.0m/s when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.90m/s2 at the instant when David passes.

75. ## Earth Sciences, Geology

What means by 'Gemstone minerals'? Is there any difference between gemstone, minerals and gemstone minerals?

76. ## history

What are three major effects that occurred as a result to the construction of the transcontinental railroad?

77. ## math

A function f(x) has domain [0,25), range (-∞,5], and intercepts (2,0), i(17,0), 0,9). A function h(x) has domain (-∞,16), range (-∞,42) and intercepts (3,0), (0,-10). Find the domain of each of the following. 1. f + h 2 f/g 3. f*g

78. ## Physics

a cannon with a barrel velocity of 140 m/s launches a cannonball horizontally from a tower. neglecting air resistance how far vertically will the cannonball have fallen after 4 seconds?

79. ## English

You need to ride up the road. (Which vehicle does the other person have to ride? Is this expression used only for riding a horse? What is the meaning of 'ride up'? Does the other person need to ride a horst toward the place which is up?)

80. ## physics

A light spring having a force constant of 130N/m is used to pull a 7.50kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.50m/s^2? Part A: By how much does the spring stretch if it pulls on the sled horizontally? X=0.144m Part

81. ## physics

A baseball player slams a fastball towards left field. The ball is hit 1.00 m above the plate at an initial velocity of 3.0 m/s at a 30 degree angle above the horizontal. The left field wall is 113 m away and is 3.00 m high. Is this a home run shot or

82. ## physics

A baseball player slams a fastball towards left field. The ball is hit 1.00 m above the plate at an initial velocity of 36.0 m/s at a 30 degree angle above the horizontal. The left field wall is 113 m away and is 3.00 m high. Is this a home run shot or

83. ## math

ok here is another one which is greater 7/9 or 85/100. I say its 85/100 and my Aunt says 7/9 which one is right?

84. ## math

Which is greater,4tenths and 2hundredths or 2tenths and 4hundredths?Explain.

85. ## Physics

a cannon with a barrel velocity of 140 m/s launches a cannonball horizontally from a tower. neglecting air resistance how far vertically will the cannonball have fallen after 4 seconds?

86. ## U.S. Government and Economics

I need someone to help me and explain this question. Every time I put thought into it, i just get confused. Choose a product that you are interested in buying. List three criteria for the type you will choose and two ways the producer's decisions might

87. ## Cesar chavez

Find two numbers exact is between 3 x 567 please explain how to do this

88. ## Phyics

A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 28 N. Starting from rest, the sled attains a speed of 2.3 m/s in 10 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.

89. ## Calculus

The position vector for a proton is initially r(with vector sign above it) =5.0i(with top)- 6.0j(with top) + 2.0k(with top) and then later is r vector = -2.0i(with top)+6.0j(with top)+ 2.0k (with top), all in meters. What is the proton's displacement

90. ## Algebra

Factor completely Y^3+y^2-4y-4

91. ## geometry

what is a concave polygon using the classify and differentiate method

92. ## Calc and Vectors

Find the volume of a parallelepiped with 3 edges defined by = (-2, 0, 4), = (5, 9, 0) and = (0, 3, -7).

93. ## Physics

How can you find the velocity of a bullet fired from a nerf gun the second it leaves the gun, if all you have is the angle it was shot at, and how far it traveled? (All in degrees) 0 degrees=2.54m 10=6.24m 30=6.54m 45=6.58m 60=1.6m 80=.94m

94. ## Math

1. 7.8/2.6= 3 2. 3.92/0.08= 49 3. 149.73/0.23= 651 4. 35/0.0025= 14000 5. 0.0092/8= 0.00115 6. 3,633.4/3.7= 982 7. 903.6/25.1= 36 8. 363.6/5= 72.72 9. 2.004/ 0.2= 10.02 10. 84.7/3.85= 22 11. 165.2/8.26= 20 12. 29.28/1.22= 24

95. ## vocabulary

This mstake made a differnece of about two inches and a half in the shot - that is to say in the position of the peg nearest the tree;...of course the error, however trivial in the beginning, increased as we proceeded with the line....: Something that is

97. ## history

a british soldier

98. ## Calculus

Int tanx sec^2x dx can be taken as (by putting it in form of Int xdx) Int secx.secx tanx dx=(sec^2x)/2 Int tanx.sec^2x dx=(tan^2)/2. Which one is correct and why is the difference?

99. ## Chemistry

what is the electron arrangement and electron configuration of Fe3+? it loses 3 electrons so is it vanadium.... please explain.. by the way is this a transition metal? if so are there any rules?...... i don't understand!!!

100. ## history!!!!

what page (number) does 'The Works of Mr. Nash appear on in the newspaper? PLEASE HELP ME!!!!

101. ## history

What incident abroad marked the election day of the 1956 election, thereby enhancing Eisenhower's bid for a second term?

102. ## computer science

In form view you can view a forms records but cannot change the layout or design of the form true or false

103. ## us history

Analyze the ways that the Free-Soil movement influenced U.S politics from 1820-1860. Explain the significance of this movement.

104. ## Math

List all the dimensions of all rectangles that can be made from 15 square tiles.

105. ## us history

Explain whether slavery or representation was the main cause of disunion. You may incorporate two of the following to support your answer -The Missouri Compromise -The Free-Soil Movement -Compromise of 1850 -Kansas-Nebraska Act, 1854 -Bleeding Kansas Dred

106. ## algebra

(8+9x), (64-81x^2), (8-9x) LCM is

107. ## us history

Describe the long-term political and economic effects of the Reconstruction and southern reaction on African Americans

5/w-3 w=

109. ## us history

Compare and contrast the goasl and strategies of the Reconstruction of TWO of the following -President -Lincon -Johnson -Congressional Republicans

your average grade if you get a b- then you get a d+ ?

111. ## Geometry

True or False: If x>4, then x>0 ? If false please explain.

112. ## Organic chemistry plz help me out (thanks)

1) a) What is the normail boiling point (760 mm Hg) for a compound that boils at 150 degree celsius at 10 mm Hg pressure? b) At which temperature would the compund in (a) boil if the pressure were 40 mm Hg? c) A compound was distilled at atmospheric

113. ## chemistry

explain how you would make 200. mL of a 0.150 M solution of calcium chloride, if provided with the solid

114. ## math

What is the least common multiple of 8 and 14?

115. ## algebra

I need to find the inverse of this function f(x)=9x+7 please show steps. The answer I got is not one of the multiple choices I have. The answer I got is f^-1 (x)=1/9x-7/9

116. ## Math

what is the least common multiple of 7 and 4?

117. ## Contemporary math

Using the new table factor calculate the compound amount for \$10,000 investment

118. ## algebra

I need to find the approx. value for x that are solutions to f(x)=0 for f(x)=-5x^2 + 7x + 2 please show steps as the answer I got does not match any of the multiple choices.

119. ## science

which of the following does not require extra attention while reading an informational text ? A)words that begin with the same letter B)word sin bold C) maps D) diagrams

120. ## physics

i am confused with the concept when electrons flow from the negative terminal to the positive terminal of a battery then why the negative one is called lower potential and positive one higher potential while the difference in negative charges is termed as

121. ## Chemistry Plz Help

Calculate the correct boiling point for nitrobenzene. Assume that a total immersion thermometer was used. The obs. boiling point was 205 degree celsius. The reflux ring in the test tube just reached up to the 0 degree celsius mark on the thermometer. A

122. ## algebra

(5^2-16w+3)/5w^2+24w-5)*(15w^2-8w+1)/(3w^2+14w-5)

123. ## Physics

what can be the source of error in lab of forces equilibrium,force board lab?

124. ## Physics

what is the relationship between forces in equilibrium and their components?

Think about the rites of passage that individuals confront in the following literature The bass, the river, and Shelia Mant by W.D Wetherell Oranges by gary Soto I have no idea what im supposed to do here. Please help me.

126. ## Algebra

2(3x + 5) = 46 a. 4 b. 5 c. 6 d. 7 C 1/2x + 1/4x = 16 (need help on this one) a. 16 b. 21.3 c. 32 d. 64 6 - x - x = 18 a. -6 b. 6 c. 9 d. -9 A 4x - 3/5 = 2/5 a. 1/5 b. 5/5 c. 1/2 d. 1/4 D

127. ## physics

A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d1 = 3.98 m to the north, d2 = 2.01 m northeast, and d3 = 1.12 m at 30.0° west of south (see the figure). Starting at the same initial point,

128. ## math

4c/7c-14 + 6c/14c-28

129. ## MATH{lcm}

ok here is a list of 2 numbers Each and I had to find the LCM of... also the answers... 1.5\10=10 2.8\7=64 3.9\12=36 4.6\8=24 5.3\21=21 6.5\9=45

130. ## Physics

A 24.5-kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 77.0 N and is directed at an angle of 30.0° above the horizontal. Determine the coefficient of kinetic friction.

131. ## science

An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronauts mass is 100kg. He has takes a 1kg "safety week" and shoves it away in exactly the direction of his motion at a speed of 6m/s. What speed does the

132. ## Algebra - for bobpursley

Problem given: 14-4(2k+4) = -2(4-3k) 14-8k-16 = -8+12k -8k-2 = -8+12k plus 8k to each side ~~> -2 = -8+20k plus 8 to each side ~~>6 = 20k divide both sides by 20 ~~> 3/10 = k

134. ## physics

Zak, helping his mother rearrange the furni- ture in their living room, moves a 59 kg sofa 2 . 6 m with a constant force of 36 N. What is the work done by Zak on the sofa?

135. ## physics

Zak, helping his mother rearrange the furni- ture in their living room, moves a 59 kg sofa 2 . 6 m with a constant force of 36 N. What is the work done by Zak on the sofa?

136. ## skills for health

i need some help for ideas of positive feedback.

137. ## Fractions

here is a list of 2 each fractions I had to turn them into 2 w\ common denomators... 1.3\4 and 3\8=6\8and 3\8 2.2\3 an 1\9=6\9an 1\9 3.3\5an 1\3=18\24an4\24 5.1\4an9\14=7\28an18\28 6.7\12an1\10=35\60an6\60 7.2\5an2\3=6\15an10\15 8.4\11an1\2=8\22an11\22

138. ## physical science

A person has a mass of 50.0 kg. what is the pressure they exert on the blades of their ice skates if each skate blade is 15.0 cm long and 5.00 mm wide?

139. ## Math

How do you solve for d? 16d - (4 - 5d) = -67 How do you solve for m? 2/7(4m - 18) = 12 How do you solve for b? 1/4(5b + 11) = 19 How do you solve for x? -5/6(9 + 2x) = 40

140. ## math

5s/(s^2-t^2) - s/(s-t)

141. ## prelag8

If 2 is raised to the third power is not equal to 6, then why?

142. ## Math

How do you write an equation to solve for x when you have a rectangle that is 7 for height and 3x - 2 on length and how do you solve for x?

143. ## science

if you want to find out if 2 objects are made up of the same material which value should be compared mass, volume or both

144. ## U.S history

does anyone know any topic ideas for the turning point in america (1600s-1900s).PLZ I need help its a research title and i have no idea what to write about.

145. ## Algebra

The Big Screamer Coaster carries 92 people altogether. Some of its cars carry 4 passengers, and the rest carry 6 passengers. There are three less 6-passenger cars than 4-passenger cars. How many 4-passenger cars are there? Please help!

146. ## physics

A test rocket is launched vertically from ground level (y = 0 m), at time t = 0.0 s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 49 m and acquired a velocity of

147. ## Calculus

Evaluate the Integral (x^5sqrt(10+x^6))dx by making a u-substitution.

148. ## Calculus

Use integration by parts to evaluate the integral xsqrt(2x+6)dx.

149. ## 6th grade social studies

What series of events led to the end of Egypts power in the Nile River Valley?

150. ## algebra

x-2/2x+22 = 1/7 x=

151. ## algebra

explain how to work 1)(+4)+3

152. ## Physics

what is the relationship between forces in equilibrium and their components?

153. ## science

A person has a mass of 50.0 kg. What is the pressure they exert on the blades of their ice skates if each skate blade is 15.0 cm long and 5.00 mm wide?

154. ## Algebra

Solve for p 11 - 2(8+3p) = 49

155. ## Social Studies

Anya got \$10 for her birthday. She considers buying a DVD of her favorite movie for \$9. She also thinks about buying a new T-shirt for \$12. Then she decides to buy a CD for \$8. What is the most likely opportunity cost of her decision? a. the ten dollars.

156. ## vocabulary

How do you parse these words? 1. Rendition 2. Ambiguous 3. Deleterious 4. Euphemism 5. Alacrity 6. Respite 7. Polemical 8. Timorous 9. Adulation 10. Eschew

157. ## child day care

The Licensing for the staff/child ratio in a classroom of three year old is 1:10. You have 22 three year old in your center. What is the minimum number of staff you need to meet the licensing ?

158. ## algebra

(4c/(7c-14)) + (6c/(14c-28))

159. ## physics

or what value of the constant c is the function f continuous on (−∞,∞) where f(x)={cx+7cx2−7 if x∈(−∞,3] if x∈(3,∞)

160. ## cal 1

or what value of the constant c is the function f continuous on (−∞,∞) where f(x)={cx+7cx2−7 if x∈(−∞,3] if x∈(3,∞)

161. ## science

An object with a mass of 70g and a volume of 100ml is most likely what substance

162. ## ap chemnstry

What is the standard reaction free energy if the standard cell emf is 1.23? Faraday’s constant is 96485 C/mol. Answer in units of kJ/mol

163. ## physics

A car starts from rest and travels for 7.5 s with a uniform acceleration of +1.9 m/s2 The driver then applies the brakes, causing a uniform deceleration of 1.1 m/s2 If the brakes are applied for 2.9 s, how fast is the car going at the end of the braking

164. ## Algebra

2(3x + 5) = 46 a. 4 b. 5 c. 6 d. 7 C 6 - x - x = 18 a. -6 b. 6 c. 9 d. -9 A 4x - 3/5 = 2/5 a. 1/5 b. 5/5 c. 1/2 d. 1/4 D

165. ## math

4 ( -x + 4 ) =12

166. ## world civilations

. How do you evaluate and understand the later Ming decision to drop (and forget about) the voyages?

167. ## help

how would you write an annotated bibliography

2-9d+h

169. ## algebra

9. 9/5w + 8/w ** Cannot be simplified. Am I correct?? 14. The number of instrctions N performed per second by a computer varies directly as the speed S of the computer's internal processor. A processor with a speed of 20 megahertz an perform 1,800,000

170. ## math

5/(w-3) Solve for w. w= I don't understand. Please help. Did I copy this incorrectly or something?

171. ## physics

A ball dropped from a sixth floor window accelerates at 10m/s squared. After 2 seconds it hits the ground. It bounces back with a velocity of -15m/s squared. A. What is the balls velocity when it hits the ground? b. The ball is in contact with the ground

172. ## Algebra 1

Tell whether each number in the list is a real number, a rational number, an irrational number, an integer, or a whole number. Then order the numbers from least to greatest. Square root of 64, -5, square root of 9, and 2

173. ## Chemistry

A volume of 60.0mL of aqueous potassium hydroxide (KOH ) was titrated against a standard solution of sulfuric acid (H 2 SO 4 ). What was the molarity of the KOH solution if 25.7mL of 1.50 M H 2 SO 4 was needed? The equation is 2KOH(aq)+H 2 SO 4 (aq)¨K 2

174. ## math

there are54 bottle caps in a box.Nicole has 8 bottle caps in a bag.Marvin takes 8 bottle caps out of the box.How many bottle caps are left in the box?

4^3÷8×6-24

176. ## Language Arts

9. Read the following sentence: Brian, would you please take that binder to Mrs. Smith with the red cover? What is the best way to correct the misplaced modifier in the above sentence? (1 point) a. Brian, would you please take that binder with the red

177. ## SS

TechTown is filled with companies that produce computer parts and software. Which sentence best describes TechTown? a. TechTown specializes in computers. b. TechTown has a high demand for software. c. TechTown must have a command economy. d. TechTown

178. ## microsoft office applications 1

you want word 2007 to show the Paragraph Mark on the document you are creating. How would you accomplish this?

179. ## HELP!! Chemistry

Round your answer to the correct number of significant digits and show work. 1. How many grams of NaI would be used to produce a 2.0 M solution with a volume of 10.00 L? 2. What is the molarity of a 2.50 x 102 cm3 solution containing 450.0 g of C6H12O6 ?

180. ## Physics

A plane, diving with constant speed at an angle of 52.0° with the vertical, releases a projectile at an altitude of 790 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive

181. ## SS

What is the main purpose of a market? a. to allow people to exchange goods and services b. to set prices for goods and services c. to help producers get human resources d.to increase competition between buyers and sellers A A relative price compares

182. ## Math

A number rounds to 5.4. The sum of the digits is 14. The product of the digits is 48. What is the number?

183. ## A Curious Question

Is the french guyana a country?

184. ## poetry part 1

The rhyme scheme of shakespeares sonnet is

185. ## English

I am writing a personal narrative and we have to include significance like what we learned from that memory. My memory is about me getting stung by a bee in elementary school but I can't think of any significance. Help please? Thanks!

186. ## Math

A number rounds to 5.4. The sum of the digits is 14. The product of the digits is 90. What is the number?

187. ## Math

A number rounds to 8.2. The sum of the digits is 13. The product of the digits is 48. What is the number?

188. ## AP Chemistry

Pb(s)|PbSO4(s)|SO2−4(aq,0.60 M)||H+(aq,0.70 M)|H2(g,192.5 kPa)|Pt. If E◦for the cell is 0.36 V at 25◦C, write the Nernst equation for the cell at this temperature. out of the five following choices, which one is correct 1.E= 0.36 + 0.01285 ln

189. ## Physics

A man has a mass of 80kg on the Earth's surface. Part A How far above the surface of the Earth would he have to go to "lose" 13% of his body weight?

190. ## Geometry

If line AB is perpendicular to line EF, and line CD is perpendicular to EF, then the measure of angle 1=the measure of angle 2. Give an arguement for the statement and a reason for each step. There is also a diagram drawn on my homework which is a vertical