Questions Asked onJanuary 3, 2011

1. Chemistry

what is the total number of moles in 80.0 grams of C2H5Cl (gram-formula mass=64.5grams/mole)? (1)0.806 (2)1.24 (3)2.48 (4)5.16 i appreciate any help.

2. ap Physics

AP PROBLEM CHILD ON A SWING AN ADULT EXERTS A HORIZONTAL FORCE ON A SWING THAT IS SUSPENDED BY A ROPE OF LENGTH L, HOLDING IT AN AN ANGLE q WITH THE VERTICAL. THE CHILD IN THE WING HAS WEIGHT W AND DIMENSIONS THAT ARE NEGLIGIBLE COMPARED TO L. THE WEIGHTS

3. Chemistry

The gaseous product of a reaction is collected in a 25.0-L container at 27 C. The pressure in the container is 216 kPa, and the gas has a mass of 96.0g. What is the molar mass of the gas?

4. physics

a ball is thrown at an initial angle of 37 and initail velocity of 23.0 m/s reaches a maximum height h, as shwon in the Figure. With what initial speed must a ball be thrown straight up to reach the same maximum height h?

5. Math

Simon and Jimmy had 167 stamps altogether. Simon gave 4/7 of his stamps to Trina, and Jimmy gave 37 stamps to Trina. Simon and Jimmy had the same number of stamps left. How many stamps did Jimmy have in the beginning? Please Help ME: I need a formula

6. physics

A 0.60 kg rubber ball has a speed of 2.0 m/s at point A and kinetic energy of 6.0 J at point B. (a) Determine the ball's kinetic energy at A. J (b) Determine the total work done on the ball as it moves from A to B. J

7. Chemistry

At 1285°C, the equilibrium constant for the reaction Br2 (gas) 2Br (gas) is Keq= 1.04 X 10^ -3 A 0.200-L vessel containing an equilibrium mixture of gases has 0.245 g. Br2 (gas) in it. What is the mass of Br (gas) in the vessel? What are the

8. physical science

a graduated cylinder is filled with water to a level of 40.0 mL. when a piece of copper is lowered into the cylinder, the water rises to 63.4 mL. find the volume of the copper sample.

9. chemistry

How many grams of calcium nitrate, Ca(NO3)2, contains 24 grams of oxygen?

10. physics

A 48.0 kg diver steps off a 10.0 m high diving board and drops straight down into the water. If the diver comes to rest 5.0 m below the surface of the water, determine the average resistance force exerted on the diver by the water. N

11. English

Read the following sentence. Decide if the verb is used as transitive or intransitive. The sun rose over the mountain. 1)transitive 2)intransitive

12. Chem

given the balanced equation: 2Al2O3(s)-->4Al(s)+302(g) What is the total number of moles of O2 that are produced when 8.0 mol of Al2O3(s)are totally decomposed ? please help me.

13. Physic

If the coefficient of static friction for tires on a road is 0.25, at what maximum speed can a car round a level 47.5 m radius curve without slipping?

Explain why it is essential to learn about computers today and discuss several ways computers are integrated into our business and personal lives.

15. math

what is the ratio of 36cm to 9dm

16. physics

Two Earth satellites, A and B, each of mass m, are to be launched into circular orbits about Earth's center. Satellite A is to orbit at an altitude of 7460 km. Satellite B is to orbit at an altitude of 20500 km. The radius of Earth REis 6370 km. (a) What

17. Chemistry

what is the total number of moles in 80.0 grams of C2H5Cl (gram-formula mass=64.5grams/mole)? (1)0.806 (2)1.24 (3)2.48 (4)5.16 please help !

18. math

what is the probability of selecting two s's in the word massachusetts if the s is replaced before the second

19. physics

Two small spaceships, each with mass m = 2000 kg, are in the circular Earth orbit of the figure, at an altitude h of 420 km. Igor, the commander of one of the ships, arrives at any fixed point in the orbit 90.0 s ahead of Picard, the commander of the other

20. Calculus

A fence 8 ft. tall runs parallel to a tall building at a distance 4 ft. 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?

asked by Joe Schmo
21. Definition

What does residence phone number mean? does it mean like the house number of someone?

22. math

a 9 foot street sign casts a 12 foot shadow. the lamppost next to it castss a 24 foot shadow. how tall is the lamppost?

23. physics

An 81 g arrow is fired from a bow whose string exerts an average force of 95 N on the arrow over a distance of 79 cm. What is the speed of the arrow as it leaves the bow? m/s

24. math

The Lappans buy 3 large wraps to serve at a picnic. Nine people in all will be at the picnic. Show three different ways to cut the sandwiches so that each person gets an equal share.

25. physics/chemistry

(a) An ideal gas occupies a volume of 1.0 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of gas in the container. i got that right to be 2.5e19 molecules (b) If the pressure of the 1.0 cm3 volume is reduced to 1.0 10-11 Pa (an

26. IPC (different one)

Select all that apply. A 0.200-kilogram ball sits on a shelf 2.00 meters from the floor and then falls to a point 1.00 meter from the floor. Ignoring any affects due to friction, at this position _____. 1) its mechanical energy is 3.92 J 2) its potential

27. physics 11

a small 900kg sports car can deliver 100Hp to the pavement. how quickly can it reach 30m/s from rest?

28. algebra

factor the following: 9x²-66x+21

29. maths

The vector equations of 2 beams of light r1 and r2 in 3 dimensional spaces referred to a fixed origin 0 are r1=2i+3j+2k+^(5i-4j+3k) r2=5i+5j-k+u(i-3j+3k) where ^ and u are scalar parameters a)prove that these lines intercept at a point in space b)Find the

asked by jon smith
30. physics

a ball is thrown at an initial angle of 37 and initial velocity of 23.0 m/s reaches a maximum height h, as shown in the Figure. With what initial speed must a ball be thrown straight up to reach the same maximum height h?

31. math

use counters to show the same number of animals. Draw the counters?

32. physics/chemistry

A rigid tank contains 0.40 moles of oxygen (O2). Determine the mass (in kg) of oxygen that must be withdrawn from the tank to lower the pressure of the gas from 37 atm to 23 atm. Assume that the volume of the tank and the temperature of the oxygen are

33. To Anonymous re Penn Foster

Check these sites for Penn-Foster's cheating policies. http://www.pennfoster.edu/cheatpolicy.html http://wiki.answers.com/Q/Will_students_that_seek_answers_on_Penn_Foster_exams_considered_to_be_cheating_and_will_they_be_dismissed_from_the_school

34. physics

consider 4 masses mA=1kg, mB=2kg, mC=3kg, mD=4kg, placed at the vertices of a square ABCD of side 4cm. Specify the position of G the center of mass of the system{A,B,C,D}. determine the position of G. Thank you :)

35. algebra

find the zero of the function: f(x)=7.5x-20

36. Trig

Write the equation of the sine function with an amplitude of 1/7, a period of 2pi, a phase shift of 6pi, and a vertical shift of 10 units up ?

37. Math

Tammy bought 16 cookies for a party. She had 6 6 cookies decorated at an extra cost of 25 cents each. If the total cost of the cookies \$9.50, how much did each plan cookie cost?

38. Chemistry

Calculate the Ksp Ca(OH)2 25cm3 of a saturated solution required 11.45cm3 of 0.1mol/dm3 HCl for neutralization.

39. geometry

If a polygon is a kite, which statement is not true? a. The polygon is a quadrilateral. b. The polygon has exactly two distinct pairs of adjacent congruent sides. c. The diagonals of the polygon are congruent. d. The diagonals of the polygon are

40. 4th math

greatest to least put these in the right order? 1/3 3/4 2/5 0.5 0.09 Thank you

41. Algebra

Is there an easier way to do this? "A freight train leaves a station at 4:00 p.m. traveling at 30 kilometers per hour. A passenger train leaves 1 hour later, traveling at 50 kilometers per hour. At what time will the passenger train overtake the freight

42. computer

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the first version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked,

43. PreCalc

A contractor plans to build an artist's studio with a roof that slopes differently on the 2 sides. On one side, the roof makes an angle of 33 degrees with the horizontal. On the other side, which has a window, the roof makes an angle of 65 degrees with the

44. calculus

A particle moves along a horizontal line such that its position s(t) = (t^2e^3t/3)for time t. Find when the particle is at rest.

45. geometry

Many younger children like to play a game similar to baseball called tee-ball. To accommodate the younger children, the bases are only 40 feet apart in a square-shaped field. Find the distance between home plate and second base in tee-ball. If necessary,

46. math

If g is a differentiable function such that g(x) < 0 for all real numbers x and if f'(x)=(x2-4)g(x), which of the following is true?

47. math/algebra

what is a multiplication sentence that have 2 as a factor and a product of 12?

48. math

a baseball player hits sa pitch when the ball is 2 feet off the ground. two hundred feet from the plate, the ball reaches its maximum height of 82 feet. will the ball clear the home run wall that is 10 feet high and 380 feet from home plate?

49. physics

Three charges are arranged in a line. From left to right, the charges are: Q1= -8mC, Q2 = +3mC and Q3 = -4mC. The distance between Q1 and Q2 is 0.3 m, and the distance between Q2 and Q3 is 0.2 m. Calculate the net electrostatic force on Q3. how can you

50. grammar

you have to underline the incorrect pronoun in each sentence.Then write the correct pronoun on the line provided 1.there was no apple cakebecause the dog ate them.

asked by vanessa rodriguez
51. maths/ physics

Determine the two square roots of 3+j4 in both a)Cartesian form b) Polar form Any help with this question would appreciated

asked by jon smith
52. Algebra II

Could someone please help me or direct me where to get help What is the exact value of cos 60 as found on the unit circle? and the value of cos 5pi/3 Please show me the steps so I understand Thank you

53. Algebra

How do I find the intercept of this equation? -4x = 2y-1

54. chemistry

You have a 10 M acidic solution. However, you need that solution to be 0.25 M. How many ml of 10 M should be diluted to obtain 300 ml of 0.25 M acid solution?

55. algebra

the larger of two numbers is twice the smaller . if the sum of the two numbers is 48, find the numbers

56. ALgebra word problem

susan can paint a chair in 3 hours. jerry can paint in the same size 2.5 hours. working together, how long will it take to paint 10 chairs?

57. algebra

if 4 times a number is decreased by 9, the result is the same as when 1 is subtracted from 3 times the number.

58. math

Rupert flew 3/16 of the way around the world, but George only flew 4/9 as far as Rupert how far around the world did George fly?

59. math

Latoya has 3/4 of a bag of popcorn. If she eats half of the popcorn at a movie , how much does she have left?

60. physics

A 55 kg swimmer crosses a 100 m pool in 12 s. If she moves with a constant velocity, what is her momentum?

61. math

complete the table below input x 0 1 2 3 4 5 output y 4 10 16 22 and an equation to show the relationship

62. Math

Find an algebraic expression for f' f(x)= 2e^x+ pi f(x)=e^5-4e^x f(x)=e^x+x^e+e f(x)= e^pi +pi^x+ x^pi I didn't understand these at all

63. science

guess the graph title of temperature at noon

64. algebra

12 - 1 1\2 c = 2 1\2

65. Physics

A hard ball dropped from a height of 1 m in earth’s gravitational field bounces to a height of 95 cm. What will be the total distance traversed by the ball?

66. algebra

byama rolls a normal dice. What is the probability that he rolls an odd number?Use a word not a number to answer this question

asked by noor aulia
67. biology

what are the sequences of event hat result in erythroblastosis fetalis

68. social studies

How is a hemisphere, continent, and a country different?

69. Math

Maria has cloth in four colors (red, blue, green, yellow) and two styles (large, small) for the school logo. The flag she is making will have two different stripes with white in the middle and the logo. What is the probability that her design will have red

70. Bio

How does the Calvin cycle make sugar from carbon dioxide? Where does the energy come from to drive this cycle?

71. Math

Solve each of these systems using the substitution method. Make sure to check your answers ! 2x + 3y = -4 x - 2y = 5 Question 1 answers x = 1, y = -2 x = -1, y = 2 x = 1, y = 2 x = -2, y = -1

72. ECONOMICS

What would be the risks and benefits of a young healthy person choosing a managed care plan What would be the risks and benefits of an older person with a chronic disease selecting a managed care plan?

73. ENGLISH

in the modest proposal by Jonathon swift what is the actual solution he wants to implement

74. Inventions

Amanda Jones didn't invent the vacuum packed canning with L.C Cooley right? Cuz for some websites I think it says they did

75. Algebra 1

Graph the equation and identify the y intercept y= 3/2x -4 Would this be the right answer? (-4,0) 3/2 three to the right and 2 up, therefore 3,2?. Thank you.

76. Algebra 1

Graph the intercept and then use them to graph the equation 4y -12 = 4x. Thanks!

77. chemistry

If 58 g of CaCO3 decomposes to form 24 g of CaO, what is the percent yield of CaO?

78. algebra

Solve the equation x2 + 8x – 2 = 0 using both a. The quadratic formula b. Completing the square Write a paragraph or two comparing and contrasting the two methods. Explain which method you prefer and why. c) Use the accompanying graph to estimate the

79. Calculus

Suppose f is continuous on [0, 6] and satisfies the following x 0 3 5 6 f -1 4 -1 -3 f' 5 0 -8 0 f" -1 -3 DNE 3 x 0

80. algebra 1

Algebra 1 - bobpursley, Monday, January 3, 2011 at 4:13pm didn't I just give you the three steps? What did you not understand about those steps? Algebra 1 - Erudita, Monday, January 3, 2011 at 4:34pm subtract x from each side, then subtract 9 from each

81. Math

Write an inequaility to describe this situation. A student pays for three movie tickets with a twentu dollar bill and gets change back. Let t be the cost a a movie ticket.

82. math

given R(-6,19) and S (14,-6), what are the coordinates of the oints on the segment RS two-fifths of the distance from R to S

83. earth science

What are the different types of seafloor sediments, and what are the factors that control the distribution of each major sea sediment type? Where does each major seafloor sediment type tend to accumulate in greatest quantity (i.e., discuss the distribution

84. writing in math

theres just 1 more i needed help with that i was stuck on it says: Madison has 7 pairs of shoes in her closet. write a multiplication sentence to show how many shoes madison has. then solve the problem and write my answer in a complete sentence.

85. physics

A person lifts a 5.5 kg cement block a vertical distance 1.1 m and then carries the block horizontally a distance 7.3 m. Determine the work done by the person and by the force of gravity in this process. J (by person) J (by force of gravity)

86. Algebra 1

Find the intercept and the x intercept for the equation 5x+6y =150. I just can't seem to figure this out. Please help me. I am totally grateful for all the help everyone of you have given me. Thank you, it is very much appreciated.

5y-3y=16

88. Calculus

Find the dimensions of the rectangle with the most area that will fit above the x-axis and below the graph of y=e^-x^2.

-2y-39=5y-18

90. Algebra 1

what is the y-intercept and x-intercept for the equation -4x+y=14? Thank you. I stayed up late, but I still can't figure this out. Please help! Thank you, again.

91. marketing

Imagine that you are a mentor to a new employee at a marketing firm. The new employee is having trouble understanding what the term market communication really means.

92. physics

A drive shaft of a belt conveyor system transmits 12kW of power at a speed of 40 rpm. If the shaft diameter is 50mm * 120mm long, calculate a)The shear stress in the shaft. b)The angle of twist if modulus of rigidity =80 GN/m2 c)If the shear stress is

asked by jon smith
93. calculus

find the volume formed by revolving the parabola y=4-x^2 in the first quadrant: a.) about x=0 b.) about x=2

94. Physics

The blades of a fan turn at 1250rpm at low speed. When the fan is switched to high speed, the rotation rate increases uniformly to 1750rpm in a period of 3.0sec. What is the average angular acceleration of the blades, in rad/sec^2? How do I convert rpm to

95. 7th grade social studies

1. what are coureur de bois? 2. what are mjssionary jobs? 3. what was louisiana named after? 4. if new amsterdam is now new york-then what is new nethrlands called today?

96. com 170

write several sentences describing a recent interaction with friend or family member about personal financial or credit cards.use at least five different pronouns,and adverbs, and adjectives in your sentences.

asked by juan rivera
97. Algebra 1

Determine whether -4 is a solution to the inequality x > - 4 I apologize, I haven't slept all night doing my homework. Thank you so very much.

98. Calculus

You are given a 60 inch by 30 inch piece of cardboad and asked to make a six-sided box. If the cardboard is cut along the lines shown, what will the dimensions of the box with maximum volume? The diagram looks as follows: it is a rectangle with a shaded

99. 5th grade math

subtract 1/2 from 5/6

100. Social Studies

How did the vacuum packed canning change society? And does anyone know how long this invention lasted before it for replaced?

101. healthcare

Should the United States allow the direct marketing of medications in print and on television? Support your response. How do you feel direct marketing affects the cost of prescription medications?

102. geometry

The vertices of ABC are A(-8, 0), B(0, 0), and C(0, -4). If a circle is circumscribed around ABC, where would the center of the circle be located?

103. geometry

Is it possible to have a triangle whose lengths are 2 m, 6 m, and 11 m?

104. math

how can i find the GCF of a pair of numbers ? (ie 11 18, 8 6)

105. math

the hypothenus of a right angle triangle is 6cm with respect to the other two sides, one is 2cm longer than the other. Find the length of the two other sides to the nearest tenth. when i worked out this question, I got the answer as X=-5.1 or X=3.1 is my

106. engilsh

diff in fact oppinion

asked by no name
107. math

An angry construction worker throws his wrench downward from a height of 128 feet with an initial velocity of 32 feet per second. The height of the wrench above the ground after t seconds is given by S(t)= -16t^2 - 32t + 128. a) What is the height of the

108. space

what is the difference between the atmosphere on earth and venus

109. trig

Write the equation of the sine function with an amplitude of, a period of, a phase shift of, and a vertical shift of 10 units up.

110. trig

I asked below but I guess it was not understood what I was asking. I'll try again. Could someone show me how, (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) is an alternate representation for, 1 / ( 4 tan (x/2) + 2 ) TIA Carol I know the half-angle formulas are

111. Science

If a blood cell is placed in distilled water, what would the water be decribed as? hypotonic or hypertonic solution?

112. algebra

solve a number is one half of another .find the numbers if their difference is 17.

113. algebra

which choice is the soultion to 7s + 10= 3s + 50 ?

114. math

mr. ming may swim the perimeter of Pool A or Pool B. In which pool must he swim farther? How much farther? Pool A measurements: 10m, 2m Pool B: 7m, 7m

115. calculus

find the volume generated of the region bounded by the parabola y=x^2 and the line y=b when revolved (b>0): a.) about the x-axis b.) about the line y=-1 c.) about the line y=a, where a>b

116. Math

Hannah and Tyler count the number of times the word "what" occurs. Hannah's data has a mean of 2.7 times. What could Tyler's mean be if his results are similar?

117. AP Calc

PLEASE ANSWER! PLEASEEEE! what is the antiderivative of sin (x + (1/x)) THANK YOU TIMES A MILLION!!!!

asked by APpreciative student
118. algebra

solve. show work .000006 .000002 _____ = _________ x² (4-x)²

119. Math

I have more than 9 but less than 16 marbles. There are half as many red as blue. There are two more green than blue. There is ann odd number of yellow. What do I have?

120. 5th grade math

subtract 1/3 from 1/2 use 6 as common denominator would be 2/6 -3/6 answer? what would be my next step subtracting these would give me a neg answer

WHAT IS THE LARGEST PERIMETER THAT CAN BE CREATED FOR AN ARRAY CREATED FROM 24 ONE INCH TILES.

122. IPC

Sometimes thermal energy and sound energy can be harnessed to do useful work. However, these types of energy dissipate rapidly. Thermal energy produced by friction cannot usually be used to do work. A) True B) False my question is; it says they can be used

123. trig

Third time is the charm? I'll try again. Could someone show me how, (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) is an alternate representation for, 1 / ( 4 tan (x/2) + 2 ) TIA Carol This doesn't require the solving of any equations. For example, ( same

124. social studies

How does the vacuum packed canning process prevent food from spoiling?

125. math

in the question 6radical x +3 radical y -2radical y +3 radical x -radical y is the answer 9 radical x +1 radical y. i just don't get it thanks

126. Calculus

Find the dimensions of the rectangle with the most area that will fit above the x-axis and below the graph of y=e^-x^2. Please show with every step. Thanks.

127. math

\$100 a month with 3% interest since 1996

128. english

Verbs that form their past and past participle by adding ed , d , or t to the present are called a) regular. b) irregular

129. Algebra 1

following the guidelines of the food and drug administration dale tries to eat at least 5 servings of fruit each day. For the first six days of one week, she had 4,5,4,5, 4, and 4 servings. How many servings of fruit should Dale eat on Saturday to average

130. algebra

write an equation for a graph in slope-intercept form if the slope of the graph is 5/-4 and one of the coordinates of a point on the graph is 1,-1).

131. Math

2x - y = 4 6x - 3y = 7 (a) y = 2x - 4 (b)No solution (c)x = 2, y = -4 (d)x = 2, y = 5/3

132. physics

(a) What is the gravitational potential energy of a two-particle system with masses 5.4 kg and 5.0 kg, if they are separated by 1.3 m? If you triple the separation between the particles, how much work is done (b) by the gravitational force between the

carol FRIEND ESMERALDA IS AWAY FOR 3 DAYS.SHE ASKED CARLO TO FEED HER PET DOG TWICE A DAY.CARLO FEED HIM ONE 8-OUNCE CAN EVERY TIME HE GOES ESMERALDA'S HOUSE. HOW MANY CANS OF FOOD DOES ESMERALDA NEED TO BUY FOR THE THREE DAY VACATION? SHOW HOW YOU

134. Trig

Could someone please show me how 1 / ( 4 tan (x/2) + 2 ) is converted to: (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) TIA Carol

135. algebra 3

How do you solve "find the domain of x in the expression sqrt 25-x^2"?

136. chemistry

the product of a chemical reaction is phosphoric acid (h3po4). which elements must be in the reactants and how many atoms of each

137. physical science

jamal found an unusual rock in his school yard. give two examples of measurement he could take that might help him identify the type of rock

138. AP Chemistry

We're doing a lab in my class and we're supposed to make a buffer at a certain pH. I have decided to make a buffer with a pH of 5.0 using glacial acetic acid (pure CH3COOH) and sodium acetate. I found that the ratio of acid to base is 1.41 M: 1.0 M and now

139. english

The house at the corner and the house next door have flowers growing in front of it. Identify incorrect pronoun or write C if correct. Correct

140. math

Explain if this is a true statement 56

141. s.s

Will it make sense if I put a picture of sealed jars when my topic is about vacuum packed canning?

142. english

struggling with this assignment where do i start and how do i finish? write vignette to personify the girls in the "picture" as fall or winter (the black and white "picture" is of a girl standing in a blank room with her dog at her side)

143. MATH

1. B is less than or equal to 8 2. Y is greater than -3 would those be open or closed endpoints when graphed on a graph?

144. Organic CHEM

What is the whole point of using solvent pairs for recrystallization(say a mix of ethanol and water) rather than just using one or the other? -I know that you use solvent pairs when you solute won't dissolve in either pure water or pure ethanol, but then

145. Math

Im a digit less than 100. My tens digit is 5 more than my ones digit. My ones digit is 3 . What number am i?

asked by Isaias g
146. Calculus

You are given a 60 inch by 30 inch piece of cardboad and asked to make a six-sided box. If the cardboard is cut along the lines shown, what will the dimensions of the box with maximum volume?

147. algebra

Determine which of the following lines, if any, are parallel or perpendicular: line a: 3y+x=6 line b: y=3x+2 line c: 3x+y=0

148. math

mr. ming may swim the perimeter of Pool A or Pool B. In which pool must he swim farther? How much farther? Pool A measurements: 10m, 2m Pool B: 7m, 7,

149. social studies

How to locate a particular place using latitude and longitude degrees?

how many pound of food does the dog eat over the 3 day period? (16 ounce = 1 pound)

151. Math

okay so i feel like a dummie for not knowing this but i need the answer FAST! Which property would allow you to use mental computation to simplify the problem 27 + 15 + 3 + 5? 1) commutative property of addition 2) distributive property 3) additive

152. biology

what are the sequences of event hat result in erythroblastosis fetalis

153. Algebra

Determine whether x > - 4 is a solution of the inequality. I really can't figure this out. Please help! Thank you again. You people are wonderful. Thank you for your time and genorosity.

if b x w = 24, b x b = 16 what is the value of w x w?

155. physical science

16. When a bullet is fired from a rifle: mine is D A. the recoiling rifle and the bullet have the same kinetic energy and momentum B. the bullet has greater momentum and kinetic energy than the rifle C. the rifle has greater momentum and kinetic energy

156. geometry

how do you find the coordinates of the midpoint of each side of traingle ABC? coordinates are A=(-4,3) B (6,5) c (6,-1)

157. math

.000006 .000002 _____ = _________ x² (4-x)²

158. history

how did the grand canal help the chinese

159. microeconomics

how do i figure out how to answer the question of what is the opportunity cost of producing 200 pounds of potatoes?

160. Algebra 1

y intercept is when x is zero y=3.2 *0 -4 yintercept 0,-4 I am not certain about your remarks on the slope I'm sorry, I was trying to graph the equation and identify the y intercept for y= 3/2x-4. I very much appreciate your help. Thank you.

161. trig-reply to Reiny

RE: (- sin (x/2) /( 2 sin (x/2) + cos (x/2)) is an alternate representation for, 1 / ( 4 tan (x/2) + 2 ) Thanks for your help, sorry I posted 3 times, I thought you didn't understand what I needed. I really do appreciate your time spent. just for your FYI,

162. devlopment

why it is important to consider each domain in the study of adult development?

163. math

what fraction of 45 is 9?

164. math

what is 125% of 60?

165. Math

High Fiber foods have at least 5 gof fiber per serving. Write an inequality ti represent the situation. Let f be the number of grams of fiber per serving of high fiber food.

166. Algebra 1

Can someone help me solve this problems please? Thank you very much 7x+9>1x+3= Can someone help me undertand the steps to solving this problem, please.

167. DRESS DECORATION

A BODKIN IS USED IN MAKING WHICH ONE OF THE FOLLOWING?

168. MATH PRE-ALGEBRA

Explain how to know wheather the endpoint of the graph of an inequality should be a closed dot or an open dot.

asked by MATH DUDE
169. Math

What would be an inequality sentence for "A number n is positive"?

170. Math

I already posted this, but wanted to say that I have the answers and it is 1.68 is less than or equal to x is less than or equal to 9.10 Cone Problem Beginning with a circular piece of paper with a 4- inch radius, as shown in (a), cut out a sector with an

171. algebra

write equations of the horizontal and vertical lines that pass through the given point: (3,2)

172. Science

A hypertonic solution is likely to contain many/no electrolytes. Is is many or no electrolytes?

173. English

1.Gold and silver gain worth from its rarity. Identfiy if pronoun is incorrect and write correct pronoun. 1.its-their

174. English

Thank you for all your improvements!Can you please check these sentences for me? Thank you very much. 1) The English Renaissance covers (covered) the historical period from 1509, the year in which Henry VIII ascended the throne to 1660, which marked the

175. algebra

how to solve for 6e-6/x2(squared)=2e-6/(4-x)2(squared)

176. general question

how do remove a question?

asked by Instructor perez
177. Physics

How do I find tangential speed with just radius, time and angular acceleration?

178. english

1.Neither Dan nor Bob likes onions on his sandwich. Identify incorrect pronoun and write correct one. 1.his--their

179. social studies

How does the vacuum packed canning process prevent food from spoiling?

180. human resources 240

What are the special challenges of criterion contamination and what would be the effects on employees and employers if these challenges are not addressed?

181. math

\$100 at 3% interest since 1996

182. geology

Do you suppose that the geologic age of calcitic marble could be determined from its fossil content as can be done with fossiliferous limestone? My answer is yes am I correct

183. math

I am trying to find the answer to a scientific notation problem, express in simplify terms (-2y) with and exponent of 4.

184. math

write the steps you would follow to find 8 x 5 x 9 using the multiplication properties and multiples of 10

185. math

5x^5-x^4-5x^3+x^2-30x+6=

18/14=90/?

187. algebra 1

Can someone help me solve this problems please? Thank you very much 7x+9>1x+3=

188. science

How joules many are needed to heat 1500 gram pot of water up to (100c) water temp is 22c

189. math

I have a project to make a dot array for each day in the month of November. I don't understand what it should look like.

190. math

magine you want to make a 2cm by 2.5cm copy of the original photo . what percent should you use?

191. English

We're learning about pronoun-antecedent. Can someone give me a link to better understand.

192. computer applications 8

one of the areas of a flyer?

193. social studies

For Louis berg is now where built today?

asked by Allison Stifiper
194. Calc

Find the inverse of y = ln (x/(x-1))

195. maths

the mean of the scores of student during the first 5 months is 23.8 ( what is the score of the 6 month if the mean of his scores is 24 marks?

how can the clerk make the change of the \$1 bill using the fewest number of coins?

197. Social Studies

Why was the vacuum packed canning process invented?

198. AP Physics PLEASE respond immediately pleasethanku

THANK YOU!! What is a combination of h (plancks constant), c(speed of light) and G (6.67x10^-11 Nm^2 / kg^2) that has units of length?

199. english

The verbs to do , to have , and to be are verbs that can be used 1.as a main verb. 2.as an auxiliary verb. 3.as either a main verb or an 4.auxiliary verb.

200. english

A transitive verb with a direct object is in the ___ voice. a.active. b.passive. c.subjunctive.

201. Algebra 1

Graph the equation and identify the y intercept y= 3/2x -4. Thank you.

202. geology

Name a region where one should expect to find lineated and foliated metamorphic rocks. I believe the rocky mountains would be a good answer, is this correct?

IF R X R X R = 27 AND R X B = 6 WHAT IS THE VALUE OF B X B X B

204. mat

5x^5-x^4-5x^3+x^2-30x+6=

205. Algebra 1

Graph the equation and identify the y intercept y= 3/2x -4. Thanks

206. social studies

is the 4th july a-freedom b-fireworks c-work d-sports