# Questions Asked onMarch 5, 2013

1. ## Soc. Studies - Help please

2nd time asking this question - need further clarification - please What was the outcome of the Alliance for Progress? A.Americans opposed Kennedy’s policies. B.Relations between the United States and Latin America improved. C.Relations between the

2. ## Spanish help please

Can someone help me I really don't understand this and this is how far I got. 1.  ¿ De dónde es la paella?   Paella es más popular en el sur de España. 2. ¿Con qué se hace el flan?   El flan se hace al horno 3.  ¿Cuál (which) tipo de

3. ## Math

What is the principle and the interest? A=\$2719.50 P= ? r=6.1% t=20 years What is the interest rate? Balance= \$3742.50 p=\$3000 interest rate= ? t=45 months

4. ## physical

Hey everyone... hoping I can get an answer soon... I have a PD/H/PE homework assignment on which we have to create an collage on Physical, Spiritual, Emotional, Social and Mental health. I am stuck on a definition for spiritual health, me not being a very

5. ## logic

Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole,

6. ## Math

A = P(1 + r)10 Hence = 500(1+0.05)10 = 814.45 Math?

7. ## math

You deposit \$24000 in an account that pays 2.4% annual interest compounded continuously. What is the balance after 5 years?

8. ## math

a professional gambler loaded

9. ## Algebra II

Determine if the following equation is linear. -7^2+y^2-y^2=3x+7 Linear and Standard Form ______________ or Non Linear

10. ## College Mathematics

Construct a truth table for the statement (pq)--->p

11. ## math

r=20kilometers t=4hours

12. ## Math

From the part of vessel travels 100NM due easy and changes its course 45degrees N of E and the travels on a distance of 50 NM.what is the distance of a vessel from port

asked by Erl floyld
13. ## Spanish

Hi! I did the work but I'd like to know if my answers are right; we were supposed to answer these questions with complete sentences: 1. ¿Alguna vez has comido insectos? Answer: Afortunadamente, no he comido insectos. 2.¿Cuánto tiempo has estudiado

14. ## Maths

The width of a rectangle is 12 units less than its length. If you add 30 units to both length and width, you double the perimeter. Find the length and with of the original rectangle.

asked by Nkuna sizwe
15. ## Maths

The width of a rectangle is 12 units less than its length. If you add 30 units to both length and width, you double the perimeter. Find the length and with of the original rectangle.

asked by Nkuna sizwe
16. ## Physics

A 0.500 kg particle moves in a circle of R=0.0150 m at constant speed. The time for 20 complete revolutions is 31.7 s. What is the period T of the motion? What is the speed of the particle? What is the centripetal acceleration of the particle? What is the

17. ## algebra

the two outer terms of a proportion

18. ## marketing

How to make segmentation for a healthy food restaurant ?

19. ## Algebra

The number of state and federal inmates in millions during year x was x=2002 X CAN BE APPROXIMATED BY THE FOLLOWING n=0.03X-59.02 dETERMINE THE YEAR THERE WERE 101 MILLION INMATES

20. ## Us history help please

Can someone check my work please? 1. In general, what happened to the price of sugar and rum between April and September 1777? The prices went up extremely high and that's what begin of the Boston tea party incident. 2.Why was this happening? Because they

21. ## biology

I nead a list of diseases that's a failure to homeostasis.

22. ## Science

Does all the water which rises up a plant escape through the leaves?

23. ## science

What happens if water is lost from the leaves faster that it is taken up the roots?

24. ## PREPARING FOR BUSINESS SUCCESS

One of the unexpected drawbacks of starting your own business is

25. ## Pre-Algebra

Grade 7 students were surveyed to determine how many hours per day they spent on various activities. Eating is 8%, homework is 8%, sleeping is 33%, TV is 13%, socializing 13%, and school is 25%. About how many hours per day altogether were spent on

26. ## math

Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole,

27. ## Physics

An electron of mass me and charge q=-e is injected horizontally midway between two very large oppositely charged plates. The upper plate has a uniform positive charge per unit area +σ and the lower plate has a uniform negative charge per unit area -σ .

28. ## physics

A mouse runs 3 m east and 4 m north in 5 seconds. What is the magnitude of the mouse's average velocity during its run in m/s?

29. ## physics

Tiger Woods can hit a golf ball quite hard. A golf ball just after being hit by Mr. Woods has a kinetic energy of 100 J and a momentum of 3 kg m/s. What is the mass of the golf ball in grams?

30. ## physics

Gymnasts can do all sorts of ridiculous tricks on various equipment. In the rings event, the gymnast is supported by two rings attached by cords to the ceiling (see a picture here). If a gymnast weighs 75 kg and is motionless on the rings, what is the

31. ## Physics

Three infinite uniformly charged thin sheets are shown in the figure below. The sheet on the left at x=-d is charged with charge per unit area of -3σ , The sheet in the middle at x=0 is charged with charge per unit area of +σ , and the sheet on the right

32. ## Physics

Point charges Q1 ,Q2 , and Q3 reside on three corners of a square with sides of 1m ; the distance from Q2 to P3 is 2m (see diagram). (a) What is the electric potential,V , at P1 ? (Normalize the potential to be zero at infinity and give your answers in

33. ## Physics

A point-like negatively charged particle of mass m and charge -q is initially released from rest from the point P along the positive z-axis where the magnitude of the electric field is largest. (a) What is the distance from the point P to the origin?

34. ## Physics

Two spherical conductors, A and B , are placed in vacuum. A has a radius rA=25cm and B of rB=35cm. The distance between the centers of the two spheres is d=225 cm. A has a potential of VA =120 Volt and B has a potential of VB = -40 Volt. a. An electron is

35. ## Physics

Two conducting thin hollow cylinders are co-aligned. The inner cylinder has a radius R1 , the outer has a radius R2 . Calculate the electric potential difference V(R2)-V(R1) between the two cylinders. The inner cylinder has a surface charge density of

36. ## PHYSICS

explorers in the jungle find an ancient monument in the shape of a large isosceles triangle. the monument is made from tens of thousands of small stone blocks of density 3 800 kg/m^3. the monument is 15.7 m high and 64.8 m wide as its base and is

asked by helpppp meeeeeeee PHYSICS.........................
37. ## physics

The drawing shows a ray of light traveling through three materials whose surfaces are parallel to each other. The refracted rays (but not the reflected rays) are shown as the light passes through each material. A ray of light strikes the a–b interface at

38. ## Physics

An electron is projected, with an initial speed of vi=2.06e+05 m/sec, directly towards a proton that is essentially at rest. If the electron is initially a great distance from the proton, at what distance from the proton is its speed instantaneously equal

39. ## computer

the cost of 12 pencils is rs20.25 . dead a flowchart to calculate the cost of 1 pencil. tell the flowchart of this

40. ## Accounts

You notice that your accounts receivable days outstanding has doubled in the first 6 months. Do you give someone a bonus or put him or her on probation? Why?

41. ## statistics

An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 25.1 years of age. If the standard deviation is assumed to be 4.6 years, find the probability that a random sample of 34 U.S. women would

42. ## Analytic geometry - finding point by intersect lin

I have a triangle ABC. The slope of AB is -1/ab, the slope of AC is -1/ac, and the slope of BC is -1/ac. My question is, I have 3 lines: Altitude from A to BC, altitude from B to AC, and altitude from C to AB. I know their slope because it is just

43. ## physics

A fisherman’s scale stretches 3.05 cm when a 2.5-kg fish hangs from it. What will be the frequency of vibration if the fish is pulled down 13.60 cm more and released so that it vibrates up and down?

44. ## Physics

An object with mass 5.0 kg is attached to a spring with spring stiffness constant 192 N/m and is executing simple harmonic motion. When the object is 0.35 m from its equilibrium position, it is moving with a speed of 0.02 m/s. Calculate the amplitude of

45. ## Physics

An object with mass 8.2 kg is attached to a spring with spring stiffness constant 370 N/m and is executing simple harmonic motion. When the object is 0.16 m from its equilibrium position, it is moving with a speed of 0.31 m/s. Calculate the maximum

46. ## life orientation

Identify and describe 3 environmental health hazards that cause ill health,crises,and or disasters within my community or any other community within south africa and globally

47. ## Math

Comparing Fractions Writing to explain James says that 5/5 is greater than 99/100. Is he correct? Explain.

48. ## Math

Comparing Fractions Writing to explain James says that 5/5 is greater than 99/100. Is he correct? Explain.

49. ## Algebra 1,Part 2

As cars passed a checkpoint ,the following speeds were clocked and recorded. Speed (mph):55,62,61,54,68,72,59,61,70) Find the mean and the range of the data set .

50. ## Physics

I came here earlier with this question: "A force of 20 N acts toward the west. Another force acts at the same point so that the resultant of the two forces is zero. What is the magnitude and direction of the second force?" I was wondering if someone could

51. ## Algebra 1 Part 2

What are the minimum,first quartile,median,third Quartile,and maximum of the data set?5 55,62,61,54,68,72,59,61,70.

52. ## english

Do you think that certain literature should be taught and/or anthologized because it is written by a woman or underrepresented ethnic group, even if it is at the expense of a "more inspiring" author? Do you think you would feel the same way if you were a

53. ## math

solve the compound inequalities as demostrated being careful of how a negative x- term is handled in the solving process show all math work arriving at the solutions display a simple line qraph for each solution set as demostrated. -119 (your or Copmound

54. ## probability

six out of every 400 cans of paint are found to be defective. If you buy four cans of paint,what is the probability that one can will be defective.

55. ## algebra

The cost of a car is multiplied by 0.02 the result is 175.. find the cost of the car.

56. ## Financial Mgmt.

Nachman Industries just paid a dividend of D0 = \$1.75. Analysts expect the company's dividend to grow by 30% this year, by 10% in Year 2, and at a constant rate of 5% in Year 3 and thereafter. The required return on this low-risk stock is 9.00%. What is

57. ## Life orientation

In line 10-15 discuss 5 ways in which the human or environmental problem impacts on the community.

58. ## physics

the resistance of copper wire of length 1m is 0.1 ohm the diameter of the wire is 0.045cm find its specific resistance

asked by amit kumar
59. ## Calc

Let f(x) = (2/3)x^3 - 2x + 1 with a restricted domain of [1,infinity]. What is the value of (f-1)'(x) when x = 13?

asked by Lost One

Not sure which answers to use.. please help: choose from these words: deficit, dissent,lucrative and agnostic.. 1& 2: My uncle decided to splurge and _____ with a country club because golf is his favorite_________.(Dissent & lucrative) 3 & 4 : Because my

61. ## stats

Which test do you use to solve this problem One-sample or independent samples t-test? Over the summer I asked my statistics students to report their gender and their level of statistics anxiety. Using a one-tailed test, determine whether females have more

62. ## stats

Which test do you use to solve this problem One-sample or independent samples t-test? Over the summer I asked my statistics students to report their gender and their level of statistics anxiety. Using a one-tailed test, determine whether females have more

63. ## algebra

Regrind, Inc. regrinds used typewriter platens. The cost per platen is \$1.70. The fixed cost to run the grinding machine is \$267 per day. If the company sells the reground platens for \$4.70, how many must be reground daily to break even?

64. ## Algebra

SOlve you have 78 feet of fencing to enclose a rectangular pasture by a barn. If you do not fence the side along the barn, find the length and width of the lot that will maximize the area

65. ## College Mathematics

write the statement in symbolic form. Let p: The Temperatue is 90 degrees Let q: The air conditioner is working Let r: If the apartment is hot and the air conditioner is working, then the temperature is 90 degrees.

66. ## College Mathematics

write the statement in symbolic form. Let p: The Temperatue is 90 degrees Let q: The air conditioner is working Let r: If the apartment is hot and the air conditioner is working, then the temperature is 90 degrees.

67. ## Algebra

Mrs. Boyd has a desk full of quarters and nickels. If she has a total of 31 coins with a total face value of \$4.55, how many of the coins are nickels?

68. ## Algebra

In a recent school board election, the two candidates for president received 2590 votes. The loser received 1302 fewer votes than the winner. How many votes did the winner receive?

69. ## stats

which test to use One-sample or independent samples t-test? A researcher tests five individuals who have seen paid political ads about a particular issue. These individuals take a multiple-choice test about the issue in which people in general (who know

70. ## Algebra

The two largest oil spills together released 286 million gallons of oil into the oceans. The smaller of the two released 58 million gallons less than the larger of the two. How many million gallons did the larger one release?

71. ## college math

ticket for a concert cost \$5.00 for adults, \$3.00 for children and \$2.00 for senior citizens. Revenue was \$500.00 for 180 tickets. 10 times more adults than children attended. How many senior tickets were sold?

72. ## chemistry

if [NO]=2M , [N2] = 1M, and [O2]= 1M, is the reaction at equilibrium?

73. ## math

Maria used 2 boxes of sugar cubes to make a building. it was too small so she wanted to increase the size 3 times. how many boxes of sugar cubes will she need?

74. ## Life orientation

What according to the Basic conditions of employment Act applies with regard to the contraventions identified?

asked by Nkooe Junior
75. ## Physics

A dart gun is located 1 meter above the floor and is fired horizontally. the dart travels a horizontal distance of 4 meters when it hits the floor. what is the initial velocity if the dart when fired?

76. ## Chemistry

Estimate the radius of the cesium ion, Cs+. The lattice energy of cesium chloride, CsCl, is 633 kJ/mol. For CsCl, the Madelung constant M is 1.763, and the Born exponent n is 10.7. The radius of Cl− is known to be 1.81 A˚. Express your answer in

77. ## Chemistry

Chlorofluorocarbons (CFC's) are organic compounds that have been implicated in ozone depletion. When the CFC known as Freon 12 (CCl2F2) is exposed to UV radiation (wavelength in the range of 10 nm to 400 nm, a bit shorter than visible light), a chlorine

78. ## Chemistry

Which compound would you expect to have the highest melting point? Base your answer off of the bonding theory presented in this course.

79. ## Chemistry

Which compound would you expect to have the lowest melting point? Base your answer off of the bonding theory presented in this course. MgO BeS NaCl KCl

80. ## Algebra

Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

81. ## Chemistry

dentify which bond you would expect to be the most polar. H-C H-F H-Cl H-S

82. ## Chemistry

I-I:150 F-F:160 C-C:350 H-H:435 (a) Calculate the energy of the I-F bond. Express your answer in units of kJ/mol. unanswered (b) Calculate the % ionic character of the I-F bond.

83. ## College math

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

84. ## College math

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

85. ## College math

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

86. ## College math

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c

87. ## tempe

An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.5 years of age. If the standard deviation is assumed to be 4.1 years, find the probability that a random sample of 32 U.S. women would

88. ## College Math

10a+ 10c + s = 180 5a + 3c + 2s = 500 a = 10c

89. ## Algebra 1Part 2

Divide 3n^2-n/n^2-1/n^2/n+1

90. ## Algebra 1Part 2

Divide 3n^2-n/n^2-1/n^2/n+1

91. ## maths-perimter

The hypotenuse of a right angled triangle is 20 m. If the difference between the length of the other sides be 4m. find the other sides?

92. ## Algebra 1 Part 2

Simplify the rational expressions.State any excluded values:(1).3x-6/x-2 (2).x-2/x^2+3x-10

93. ## College math

if f(x) =x+3/7 and g(x) =4+5x find (gof) (x)

94. ## Algebra 1 Part 2

Simplify the radical expressions: (1).sqrt75+sqrt3. (2).sqrt7(sqrt14+sqrt3

95. ## Sentence Question?? LANG ARTS

Choose the option that corrects the sentence below. "Commander-in-Chief Sam Houston defeated the Mexican army and captured Santa Anna in 1836." A. Commander-in-Chief, Sam Houston, defeated the Mexican army and captured Santa Anna in 1836. B.

96. ## math, calculus

A 3-dimensional structure is obtained from rotating the parabola y=x^2 about the y-axis. Each second, 2π units^3 of water is being poured into the structure from the top. When 8π units^3 of water has been poured in the structure, the instantaneous change

97. ## Statistics

An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.5 years of age. If the standard deviation is assumed to be 4.1 years, find the probability that a random sample of 32 U.S. women would

98. ## Math

You roll a blue number cube and a green number cube. Find P a number greater than 2 on the blue cube and an odd number on the green cube.

99. ## Algebra 2

Objective Function: C = 6x – 4y

100. ## English

3. “Aunt Dessie unfolded out of the car like a carpenter’s ruler” is an example of personification. symbol. simile. metaphor. I think its C.

101. ## Poetry??

Read the following excerpt from “and sometimes i hear this song in my head.” "and our tongues keep remembering the rhythm of the words we forgot swaying on the backs of buses and in hot kitchens crooning in pool halls and shared bathrooms yeah/we

102. ## Physics

High-speed stroboscopic photographs show that the head of a 197 g golf club is traveling at 36.8 m/s just before it strikes a 45.9 g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 25.9 m/s. Find the speed

103. ## General Biology

Darwin used which of the following terms to describe the process by which those individuals that possess superior physical, behavioral, or other attributes are more likely to pass their traits to the next generation?

104. ## algebra

Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chucks rate of travel is 3 mph more than Danas, and they travel the same length of time, at what speed does Chuck travel?

105. ## maths-ecllipse

Derive the equation of the ecllipse with center (h,k)

106. ## Algebra

Suppose that x liters of 40% acid solution are mixed with y liters of a 43% solution to obtain 100 L of a 41% solution. One equation in a system for solving this problem is x + y = 100. What is the other equation?

107. ## science

For each of the following, choose the option that applies to case-control studies: a. The investigator's role regarding exposure: A assign B observe b. Subject selection into groups: A self-selection B randomization d. Directionality: A backwards B

108. ## Analytical Chemistry

Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 291 units was obtained for the intensity of the 671 nm red emission line. Then 1.00 mL of a 11.7 mM Lithium standard was

109. ## math

A motorcycle leaves colorado springs, colorado, traveling north on I25 at an average speed of 47 mph. one hour later, a car leaves colorado springs, traveling south on I-25 at an average speed of 54 mph. How long after the motorcycle leaves will it take

110. ## Calc pt2

Original question: Posted by Lost One on Tuesday, March 5, 2013 at 12:04pm. Let f(x) = (2/3)x^3 - 2x + 1 with a restricted domain of [1,infinity]. What is the value of (f-1)'(x) when x = 13? •Calc - Steve, Tuesday, March 5, 2013 at 12:58pm since x =

asked by Lost One
111. ## math

two mechanics worked on a car the first mechanic worked for 5 hours and the second mechanic worked for 15 hours together they charged a total of 1750 what was the rate charged per hour by each mechanic if the sum of the two rates was 160 per hour

112. ## Algebra

Two of the top-grossing concert tours were by a jazz band and a rock band. Together the two tours visited 178 cities. The jazz band visited 92 cities more than the rock band. How many cities did each group visit?

113. ## Life orientation

3.2.1 what unethical behaviour is taking place on the case study?name two

114. ## maths-triangles

how can we obtain the areas of the irregular polygans or irregular shapes or just any closed curve...?? if we know the perimeter of that shape than do v need to divide it into any kind of simpler shape like triangle

115. ## algebra

I need to find the solution or no solution or infinite solutions to these two equations. x + 2y =4 9x - 4y = 3

116. ## Science

According to Newton's second law of motion____. F = mv F = m/a a = Fnet /m F = ma

117. ## science physice

ascending with acceleration of 0.2m/s

118. ## Physics

An 67.6 kg object moving to the right at 38.7 cm/s overtakes and collides elastically with a second 48.9 kg object moving in the same direction at 19.2 cm/s. Find the velocity of the second object after the collision. Answer in units of cm/s

119. ## algebra

the sets D and E are defined as follow D={v/v>1} and E={v/v>5} write DUE and DNE using interval notations if set is empty write 0

120. ## math

If AB=BC=CD and A=3 and D=14, what is B?

121. ## cultural diversity

Linda Arriaga teaches at The Young Wonders Preschool. Which one of the following elements is likely to play the most prominent role in the school's child-centered philosophy and mission statement? A. Collaboration between teachers/staff and families B.

122. ## Algebra

The volume of it is 1125 cubic inches, the length is 18 inches, and the width is 15 inches. Can you also show me how to do because I have a test on Friday! Thanks!!! :)

123. ## Math

The volume of it is 1125 cubic inches, the length is 18 inches, and the width is 15 inches. Can you also show me how to do because I have a test on it Monday. Thanks!

124. ## Physics

A boat is pulled through a canal by horses walking parallel to the canal and exerting a force of 1000 N on a tow rope 40 meters long. If the distance from the boat to the horse track is 15 meters, what is the magnitude of the effective component pulling

125. ## Physics

A sled rope is held at an angle of 45 degrees with the horizontal ground. A force of 60 N acting parallel to the ground is required to keep the sled in motion. How much force must be exerted on the rope?

126. ## Algebra

Joan Arlington has twice as much money invested at 5% simple annual interest as she does at 4%. If her yearly income from the two investments is \$378, how much does she have at each rate?

127. ## Algebra

Soybean meal is 16% protein; cornmeal is 8% protein. How many pounds of each should be mixed together in order to get 320-lb mixture that is 10% protein?

128. ## Algebra

A store mixes Kenyan coffee worth \$11 per kilogram and Turkish coffee worth \$13 per kilogram. The mixture is to sell for \$12 per kilogram. Find how much of each should be used to make a 348-kilogram mixture. How many kilograms of the Kenyan coffee should

129. ## Algebra

Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

130. ## Life orientation

What are basic condition of employment act?

131. ## Math

The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism

132. ## Finance

AQ&Q has EBIT of \$2 million, total assets of \$10 million, stockholders' equity of \$4 million, and pretax interest expense of 10 percent. A. What is AQ&Q's indifference level of EBIT? B. Given its current situation, might it benefit from increasing or

133. ## pre alger

Suppose that a car normally sells for \$16,500 and is now on sale for \$14,000. What is the percent of discount? If necessary, round your answer to the nearest tenth.

134. ## Math 6th grade

The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?Please help!

135. ## math

pete and sean decide to raise money for a charity by having a carnival in their backyard. in one of the games that they set up, the probability that a person will win is.4. if robyn plays that game nine times, what is the probability that she wins exactly

136. ## math

Trish wants to rent a camera for the weekend. One company charges flat rate of \$75/day. The other one charges \$35/day plus \$5/hour. Write two equations to represent this information.

137. ## Life orientation

Identify the form of discrimination in the case study.how should discrimination in the work place be dealt with?

138. ## math

solve the compound inequality write the solution in interval notation 2u+4>-6 and 3u-6> -3

139. ## nursing

A physician orders dolasetron (Anzemet) 1.8 mg/kg IV for prevention of chemotherapy-induced nausea and vomiting. Dolasetron (Anzemet) is available in a 20 mg/mL vial. How many milliliters will be prepared and administered per dose to a 134-lb client? not

140. ## cultural diversity

Child-rearing practices in which children are expected to sleep alone, toddlers are epected to self-feed, and preschoolers are encouraged to compete and/or do their best are likely to be contrary to beliefs and practices held by parents and guardians who

141. ## Algebra

Please help with this: Write a polynomial in standard from with the zeros -2, -2 and 2. I remember that (x-a)(x-b)(x-c)=0 but I forget what exactly to do.

142. ## maths help please

A bucket contains 8m^3 of water. Using two smaller empty buckets of 3m^3 and 5m^3 respectively. How will you manipulate accurately so that 4m^3 is left in d biggest bucket?

143. ## Chemistry

If you have 1.90 mol of H_2 , how many grams of NH_3 can be produced?

144. ## Chemistry

If you have 1.90 mol of H_2 , how many grams of NH_3 can be produced?

145. ## Math

The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism? Help please

146. ## Math

JOSHUA HAS 3 yards off ribbon. He need 1/4 to make one bow. How many bows can joshua makes?

147. ## Physics

A basketball is thrown from the ground into the air at an angle of 30 degrees to the horizontal. If this object reaches a maximum height of 5.75m, at what velocity was it thrown? How am i suppose to do this question if no velocity is given? I need help. I

148. ## algebra

use substitution to solve the system -5x+24=27 and y=2x+11

149. ## maths help plsss

John,owner of a most exclusive nightclub was shot and killed ba a gang,after considerable effort on the part of the police,five men were arrested as suspects and were asked to say for themselves what they know of d case. Each man made three statements,two

150. ## Math/algebra

The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism?

151. ## maths help plsss

John,owner of a most exclusive nightclub was shot and killed ba a gang,after considerable effort on the part of the police,five men were arrested as suspects and were asked to say for themselves what they know of d case. Each man made three statements,two

152. ## Math

If triangle PQR is 14.5 then PQR=71, QPR =57 find the lengths of the sides PR and PQ

153. ## physics

From the top of a tall building, a gun is fired. The bullet leaves the gun at a speed of 340 m/s, parallel to the ground. As the drawing shows, the bullet puts a hole in a window of another building and hits the wall that faces the window. (y = 0.56 m, and

154. ## Math College

Solve the Matrix 12 -3 8 01 2 4 00 1 2

155. ## Math

The base of the skateboard ramp has an area of 2.3 m square meters the height of the ramp is 1.2 m find the volume of the rectangular prism? Can you help me Dr.Jane or Ms.Sue?!?

156. ## math 116

Someone please help me with this quesion. A barrel contains 192 gallons of paint and is being drained at a constant rate of 11 gallons per minute. Write an equation that number of gallons,g,after t minutes. The equation that models the given situation

asked by meka a
157. ## Chemistry

H3PO4 Ka1= 7.5x10^-3 Ka2= 6.2x10^-8 Ka3=4.2x10-^13 Explain how you will make a buffer with a pH of 11.80 using solid Na2HPO4 and either 2.00 M NaOH or 2.00 M HCL. The most concentrated component should have a concentration of 0.50 M, and you need to make

asked by Celina Sandoval
158. ## algebra 1A

find the slope, if it exists,of the line containing the pair of the points. (-2,-1) and (-20,-15).

159. ## English help

add the comma to the sentence As they studied the film they noticed some rules of science at work i wrote mine like this As they studied the film, they noticed some rules of science at work

160. ## calculus

Evaluate the following line integral: ∮C[(4x^2+3x+5y)dx+(6x^2+5x+3y)dy] where C is the path around the square with vertices (0,0),(2,0),(2,2) and (0,2).

161. ## math

write 3.85 x 10 to the negative 12th in scientific notation

162. ## 7th Math

What is the function rule for 2,30 4,15 6,10 10,6 12,5 15,4 30,2

163. ## math

a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in

164. ## math

solve the following system 8x+19=-19 -3x+7y=-24 x= y=

2x-x=1.5

166. ## Math-geometry

If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180, how many dots does each face have after the rotation?

ln24 - ln6

168. ## algera 1A

find the slope, if it exists,of the line containing the pair of the points. (-2,-11) and (-20,-15). I came up with (-2,-9)is this correct?

169. ## ALGEBRA

PLEASE VERIFY THE IDENTITY cot(theta-pi/2) = -tan theta

asked by cooper roschuk
170. ## Compensation and Benefits

Compare and contrast the following methods of job evaluation, and include examples that are not the same as in the textbook to demonstrate understanding: Lott, Benge, and Multiple Regression. Identify the key differences.

171. ## Math

The price of a home is \$185,000. A down payment of 10% is required with 2 points at the time of closing. The home is financed over a 25 year period with a fixed rate of 4.5%. Find the monthly payment and total interest paid?

172. ## math

Jane bought a meter of ribbon and cut off about one fifth of it to make a bow. About how many millimeters of ribbon did Jane use to make the bow?

173. ## math

Tom deposits \$1000.00 in a savings account that earns 5% simple interest. How long will it take for the total of his account to reach \$1350.00

asked by jo y morgan
174. ## MONGU COLLEGE

A resistor of 15 ohms and an inductor of 4H and capacitor of 25 micro F are connected in series across 230V AC supply calculate. a.The frequency b.current c.voltage drop or pd across inductance.

asked by barotseland network
175. ## math

Tom deposits \$1000.00 in a savings account that earns 5% simple interest. How long will it take for the total of his account to reach \$1350.00

asked by jo y morgan
176. ## chemistry

If methane at a pressure of 3.2 atm and at 21 °C is introduced into a container, the gas be heated to ______°C to increase the pressure to 12 atm.

177. ## Programming (Visual Basic)

Im seem to be having trouble with this Exercise. Would you mind helping me please? How do i do this Visual Basic program? Instructions say: Fix the following code: Dim dblRegularPay As Double Dim dblOvertimePay As Double intRegularPay = 783.87

178. ## MONGU COLLEGE

A 1200 ohms resistance of AC 0.07H inductance coil and a 0.001mF capacitor are in series across a 120V source determine. a.frequency. b.current. c.impedance.

asked by barotseland network
179. ## accounting

Acme Corporation issued \$650,000, 8%, bonds for \$720,000. Was the market rate on the date of issue higher than, lower than, or equal to the stated rate of interest?

180. ## help

what is the answers to chapter 13 study guide for social studies?

181. ## help

what is the answers to chapter 13 study guide for social studies?

182. ## Physics

A 1200.0-kg car speeds up from 16.0 m/s to 20.0 m/s. How much work was done on the car to increase its speed?

183. ## 6th math

a factory can produce 45 containers of yogurt in t minutes, 950 grams of fruit are used for every 25 containers of yogurt b) find in terms of t the time taken by the factory to produce 100 containers of yogurt c) if t=6 find the amount of fruit used in

184. ## chemistry

If methane at a pressure of 3.2 atm and at 21 °C is introduced into a container, the gas be heated to ______°C to increase the pressure to 12 atm. is it 352???

185. ## Algebra

Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

186. ## language

Of the 2 swimmers, Dana is the (more better, best, better)

187. ## language

Those trees have (fewer, less) fruit on them.

188. ## accounting

Acme Corporation issued \$650,000, 8%, bonds for \$720,000. Was the market rate on the date of issue higher than, lower than, or equal to the stated rate of interest?

189. ## 3rd grade math

yolanda plays basketball in a youth league. each game is made up of 4 quarters, and each quarter is 8 minutes long. if yolanda plays every quarter during 7 games, how many minutes does she play in all.

190. ## kv

A reference solution is to be prepared with 5 PPM parabenzopyrene (molecular weight = 252). The quantity of parabenzopyrene required for preparing one litre 5 PPM solution is

191. ## 3rd grage math

there are 6 teams in the youth basketball league. during the season, each team plays 15 games.how many total quarters of basketball are played in all of the teams games during the season.

192. ## Algebra

A store mixes Kentucky bluegrass worth \$11 per pound and ryegrass worth \$14 per pound. The mixture is to sell for \$13 per pound. Find out how much of each should be used to make a 588 pound mixture. How many pounds of the Kentucky bluegrass should be in

193. ## chemistry

After 273 m3 of ethylene oxide is formed at 748 kPa and 525 K, the gas is cooled at constant volume to 293 K.The new pressure is _____kPa

194. ## English

How is the word any both singular and plural?

(7/9)/3=

(2/5)/(1/10)

197. ## algebra

the primeter of a rectangle is 24ft. the length is 2 ft longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width, write the first equation. 2x+2y=__ write the

198. ## Math

2 1/3 - 1 3/4=

199. ## science

Suppose you wanted to produce 1.17 L of a 3.41 M aqueous solution of H2SO4. How many grams of solute are needed to make this solution? (H2SO4)

200. ## math

Find the coordinates of the point of intersection of the plane 2x+y-3z+6=0 on the y-axis

202. ## calculus

The radius of a circular oil spill is increasing at a rate of 10 feet per hour. How quickly is the surface area changing when the radius is 200 feet? Please help... Lost

203. ## Physics ~Thermodynamics~

* Pressure * 1) what other ways can the pressure of a gas be changed? * Internal Energy * 2) A cup of hot tea is poured from a teapot, and a swimming pool if filled with cold water. a) Which one has a higher internal energy? b) Which has a higher average

204. ## Science

calculate molarity if H3PO4 from phenolphthalein titre (21ml) assuming it to be dibasic H3PO4 + 2NaOH ---> Na2HPO4 + 2H2O

205. ## Spanish

Hi! I did the work but I'd like to know if my answers are right; we were supposed to answer these questions with complete sentences: 1. ¿Alguna vez has comido insectos? Answer: Afortunadamente, no he comido insectos. 2.¿Cuánto tiempo has estudiado

206. ## Chemistry

Why is it important to identify the limiting reactant in stoichiometry?

207. ## Math

After sales tax is added the total cost of 58.00 dollars purchade is 61.48 dollars What is the sales tax rate on the purchase? The bill at a restaurant is \$59.29. Estimate the amount to leave for a tip of 15% The average snowfall each winter at a ski

208. ## algebra

the primeter of a rectangle is 24ft. the length is 2 ft longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width. Is the answer for the lenght 16ft and 8ft for the

210. ## math

represent the number 24 by making equal groups (write the multiplication and addition sentence for each)

211. ## Math

JAcob has 50 cent in quarters 60 cent in dimes and 85 cents in nickels what fraction of the coins are nickels?

212. ## math

using past data, an airline believes that 8% of the people who make reservation for a particular flight will not appear. for this flight, the seating capacity is 300 passengers and the airline sells 315 tickets. what is the probability that everyone who

213. ## math

can one angle of a right triangle measure 100 degrees?

214. ## Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

215. ## Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

216. ## Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

217. ## angular momentum

Just after a motorcycle rides off the end of a ramp and launches into the air, its engine is turning counterclockwise at 7530 rev/min. The motorcycle rider forgets to throttle back, so the engine's angular speed increases to 12600 rev/min. As a result, the

218. ## math

A manager of an electronics store takes a random sample of large shipments of circuit boards to determine if he will accept the delivery. he randomly samples 20 boards from a shipment and will reject the delivery if more than 1 circuit board is defective.

219. ## algebra

the primeter of a rectangle is 24ft. the length is 2 ft longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width. is the answer for the length 14ft and the width

220. ## 3rd grade math

there are 6 teams in the youth basketball league. during the season, each team plays 15 games.how many total quarters of basketball are played in all of the teams games during the season. each game made up of 4 quarters.

221. ## CHEMISTRY

Determine if it is polar or non-polar molecule: C3H6O C2H5OH SiCl4 NH3 CO2 C3H8 H2O N2 My ans are: Polar Polar Polar Nonpolar polar Nonpolar are my answers correct????

222. ## physics

The speed of all electromagnetic waves in empty space is 3.00 × 108 m/s. What is the wavelength of visible light emitted at 7.2 × 108 MHz? Answer in units of m

223. ## Patterns

Randy pushed a box up a hill. It turned over 15 times and then turned over 5 times as it rolled back down toward Randy. He pushed the box again, and it turned over 20 times before it rolled back 10times. Continue the pattern.

224. ## CHEMISTRY

Determine if it is polar or non-polar molecule: C3H6O C2H5OH SiCl4 NH3 CO2 C3H8 H2O N2 My ans are: Polar Polar Polar polar Nonpolar nonpolar polar Nonpolar are my answers correct????

225. ## chemistry

Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 291 units was obtained for the intensity of the 671 nm red emission line. Then 1.00 mL of a 11.7 mM Lithium standard was

226. ## Math

A tree in the park makes a shadow on the ground at the same time the basketball post makes a shadow on the ground, as shown. If the height of the basketball post is 10 feet tall, and casts a 30 foot shadow, and the tree casts a 60 feet shadow, use

227. ## Math Statistics

The hieght of women are approximately normally distributed with a mean of 65.4 inches and a standard deviation of 2.5 inches. What percent of these women would be over 70 inches or more? 70-64.5/2.5 = 2.2 Is this correct? How would I determine the hieghts

228. ## Algebra

Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 236 miles in the same time that Dana travels 224 miles. If Chuck’s rate of travel is 3 mph more than Dana’s, and they travel the same length of time, at what speed does Chuck

229. ## math

It takes Omar four minutes to eat eight carrot sticks. How long does it take him to eat one? Please answer and explain.

230. ## Math

If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180, how many dots does each face have after the rotation?

231. ## Math

If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180, how many dots does each face have after the rotation?

232. ## statistics

The average admission charge for a movie is \$6. if the distribution of movie admission charges is approximately normal with a standard deviation of \$1, what is the probability that a randomly selected admission charge is less than \$3.5?

233. ## calculus

Please show me how you do this. Thank you. Calculate the definite integral: 2 ∫_ 2x dx 7

234. ## math

Identify a variable that could be described with an approximately normal distribution, and explain how you came to this conclusion.

It takes Omar four minutes to eat eight carrot sticks. How long does it take him to eat one? Please answer and explain.

236. ## Algebra

f(a)=r, f(b)=q, f(c)=t, f(d)=r Write functions as a set of ordered pairs. Give domain and range of t. f= type ordered pairs domain is range is

237. ## physics

How fast would a 4-g fly have to be traveling to slow a 1890-kg car traveling at 51 mph by 6 mph if the fly hit the car in a totally inelastic head-on collision?

238. ## Physics

A wire of thickness d = 5 mm is tightly wound 200 times around a cylindrical core to form a solenoid. A current I = 0.1 A is sent through the wire. What is the magnetic field on the axis of the solenoid?

239. ## Math

Barry is 8 years older than his sister. In 3 years, he will be twice as old as she will be then. How old is each now? Please show work! I don't understand.

240. ## Math...

Jennifer is 6 years older than Sue. In 4 years, she will be twice as old as Sue was 5 years ago. Find there ages now

241. ## DYNAMICS

The 10-lb has an initial velocity of 10ft/s on the smooth plane. If a force F=(2.5t), where t is in seconds, acts on the block for 3s, determine the final velocity of the block and the distance the block travels during this time.

242. ## Algebra

Can you please solve this I don't understand I know the answer is b>3 but If you can break it down for me and show work? (: 3b+12>27-2b

243. ## calculus

e^2x-4e^x+3=03

244. ## chem

A balloon occupies a volume of 352 cm3 at 615 Torr and 19 oC. If the pressure is changed to 410 Torr, what temperature must the gas in the balloon have to occupy the same volume?

245. ## calculas

lnx^10+ lnx^9 + …….lnx=10+9+8+…..1

246. ## DYNAMICS

The 10-lb has an initial velocity of 10ft/s on the smooth plane. If a force F=(2.5t), where t is in seconds, acts on the block for 3s, determine the final velocity of the block and the distance the block travels during this time.

247. ## math

Round 9.098 to the nearest tenth. Please answer and explain

248. ## Geometry

A six foot person is walking away from an 18 foot pole. Express the distance between the pole and the person in terms of the length of the persons shadow.

249. ## calculas

Write following equations in polar coordinate then graph them Y=4X

250. ## UTA

A vertical straight wire carrying an upward 35 current exerts an attractive force per unit length of 8.0×10−4 on a second parallel wire 7.5 away. What current (magnitude and direction) flows in the second wire?

251. ## Math-oops forgot info

If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180 about the z axis and +90 about the x axis, how many dots does each face have after the rotation?

252. ## Algebra

Jon and Melissa agree to meet in Chicago for the weekend. Jon travels 236 miles in the same time that Melissa travels 224 miles. If Jons rate of travel is 3 mph more than Melissas, and they travel the same length of time, at what speed does Jon travel?

253. ## Physics..PLZ HELP!

The magnitude of the magnetic field 8.0 cm from a straight wire carrying a current of 6.0 A is A) 3.0 ƒÎ ~ T. B) 1.5 ~ T. C) 1.5 ~ T. D) 3.0 ~ T. E) 3.0 ~ T.

254. ## calculas

Solve following equations ¡¼tan¡½^(2 ) x-5tanx=-6

255. ## algreba

one eight of a number reduced by three times the same number?

256. ## physics

Jacob found a piece of a broken glass bottle. He picked it up and made these observations about it: 1. No color (clear) 2. Makes scratches on wood 3. Has a bumpy surface 4. Broke when I dropped it He thinks the glass is a solid and most of his observations

257. ## physics

Jacob found a piece of a broken glass bottle. He picked it up and made these observations about it: 1. No color (clear) 2. Makes scratches on wood 3. Has a bumpy surface 4. Broke when I dropped it He thinks the glass is a solid and most of his observations

258. ## literacy

Identify the publisher and the numbers for Ellison's 2002 edition Invisible Man

259. ## Finding OH-,H3O+, pH, and pOH?

Hi! I am very stuck with these problems. I have tried to solve for each of these values, but I keep getting the answers wrong. Q: For each of the following strong base solutions determine OH-, H3O+, pH, and pOH: 8.66×10−3 M LiOH 1.15×10−2 M Ba(OH)2

260. ## math

y=1/3x+5 its a t-table x | y -3 | 0 3

261. ## physics

Tarzan, King of the Jungle (mass = 73.2 kg), grabs a vine of length 14.1 m hanging from a tree branch. The angle of the vine was 25.9° with respect to the vertical when he grabbed it. At the lowest point of his trajectory, he picks up Jane (mass = 41.0

Jon and Melissa agree to meet in Chicago for the weekend. Jon travels 236 miles in the same time that Melissa travels 224 miles. If Jons rate of travel is 3 mph more than Melissas, and they travel the same length of time, at what speed does Jon travel?

263. ## Litreture

Directions: For questions 19–20, read the passage. Select the letter that shows the best way to write each underlined part. If the underlined part contains no error, select “d. no error.” 18. world-famous mathematician (1 point) a.world-famous,

264. ## calculus

Solve following equations e^2x-4e^x+3=03

265. ## chemistry

Determine if it is polar or non-polar molecule: C3H6O C2H5OH SiCl4 NH3 CO2 C3H8 H2O N2 My ans are: Polar Polar Polar polar Nonpolar nonpolar polar Nonpolar are my answers correct???? No one has answered this question yet.

266. ## Geometry

a. If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles. b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles.

267. ## Adult Development and Life Assessment

The ________________ stage of Erikson’s model of psychosocial development is like a “hub” that early stages lead to and later stages depend on. identity vs. identity confusion intimacy vs. isolation generativity vs. stagnation autonomy vs. shame and

268. ## Physics

An airplane is flying in a horizontal circle at a speed of 104 m/s. The 73.0 kg pilot does not want the centripetal acceleration to exceed 6.98 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

269. ## Algebra

What is the solution for this inequality? 8+6x≥7x+2-x

270. ## Chemistry

If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps

271. ## Chemistry

If 8.5g of pure ammonium phosphate , (NH4)3PO4(s), is dissolved in distilled water to make 400mL of solution, what are the concentrations (in moles per litre) of ions in the solution. How would I solve this type of stoichiometric problem. I know the steps

272. ## ap chemistry

A 0.456 gram sample of an unknown mono- protic acid (let’s call it HZ) was dissolved in some water (you pick the amount). Then the acidic solution was titrated to the equivalence point with 32.5 mL of 0.174 M KOH. What is the molecular weight of the

273. ## English

I am writing a speech and It about a boy named Edward and he lost her mom when he was young. I need a hook in a question format. Please help. What should I write. Ex: Have ever realize...... I need something similar to this. Please Help!!!!!!

274. ## Chemistry 101

Complete and balance each of the following equations for gas-evolution reactions. Identify all of the phases in your answer. HCl(aq)+K2SO3(aq)-->

asked by Michael Hyatt
275. ## TRIGONOMETRY HELP

Prove that: cos²Θ - sin²Θ = 2cos²Θ - 1

276. ## Algebra

Use synthetic division and the Remainder Theorem to find P(-5) if P(x) = -x^3 - 4x^2 + x - 2. Please help....?

277. ## ap chemistry

If 300 mL of 3.9 molar HCl solution is added to 200 mL of 2.2 molar NaOH solution, what will be the molarity of NaCl in the resulting solution? Answer in units of M

278. ## Chemistry

A strip of zinc metal was placed in a beaker that contained 120mL of a solution of copper(2) nitrate, Cu(NO3)2(aq). The mass of the copper produced was 0.813g. Find the initial concentration of the solution of copper(2)nitrate. Can u help me out with

279. ## math

A rectangular photograph is mounted on a rectangular card. There is a border ofequal width around the photograph. The perimeter of the card is 40 centimeters longer than that of the photograph. Find the width of the border in centimeters.

280. ## math

A rectangular photograph is mounted on a rectangular card. There is a border ofequal width around the photograph. The perimeter of the card is 40 centimeters longer than that of the photograph. Find the width of the border in centimeters.

281. ## chemistry

is putting gas in a vehicle a physical or chemical reaction

282. ## ap chemistry

In neutralization reactions, acid + base ! salt + water HCl can be neutralized with NaOH. How many moles of NaOH will it take to neutralize 0.31 L of 0.7 M HCl? Answer in units of mol

283. ## Data Management Grade 12

A survey of 1000 television viewers conducted by a local television station produced the following data: •40% watch the news at 12:00 •60% watch the news at 18:00 •50% watch the news at 23:00 •25% watch the news at 12:00 and at 18:00 •20% watch

asked by Trisha janelle
284. ## math

The radian measure of an angle of 182 degrees is

285. ## ap chemistry

A 37 mL sample of a solution of sulfuric acid is neutralized by 42 mL of a 0.113 M sodium hydroxide solution. Calculate the molarity of the sulfuric acid solution. Answer in units of mol/L

286. ## Physics

At t = 0, a wheel rotating about a fixed axis at a constant angular deceleration of 0.37 rad/s2 has an angular velocity of 0.5 rad/s and an angular position of 8.5 rad. What is the angular position of the wheel after 2 s? Answer in units of rad

287. ## Chemistry

Calculate the volume of 1.0 M copper(II) sulfate solution required to completely react with 1.0 g of Fe(s) according to this equation: 2 Fe(s) + 3 Cu^2+ (aq) --> 2 Fe^3+ (aq) + 3 Cu (s). the copper in the reactant has a charge of 2+ and the iron in the

288. ## Grammar

Rives the paragraph below to create shorter, more direct sentences. Years ago, when most of today's model railroaders were still growing up, the toy world offed a number of fantastic electric train sets that included engines with real steam and whistles

289. ## algebra

Translate the phrase into a mathematical expression and then simplify. Nine times a number decreased by six times the same number. My answer is 9x-6x Write the corresponding mathematical expression. The simplified expression is______? I do not know this

290. ## Chemistry

What are the attractive forces that increase surface tension? -Would it be cohension and adhension? Thanks

291. ## Chemistry

22.) The molar heats of fusion and vaporization for water are 6.02 kJ/mol and 40.6 kJ/mol, respectively, and the specific heat capacity of liquid water is 4.18 J/gC. (1) What quantity of heat is required to melt 25.0 g of ice at 0C? (2) What quantity of

292. ## math

Colin has 3 quarters. He says he has less than 8/10 of a dollar. Is he correct? Explain

293. ## Economics

Present value equivalent for geometrically increasing series when the first year base of 4,000 increasing at 4% per year to year 15 at an interest rate 17% compounded continuously? urgent Help please

294. ## math

simpplify. (3x)^3 (note use positive exponents only.) my answer is 27x^3

295. ## chemistry

At a particular pressure and temperature, it takes just 2.040 min for a 3.632 L sample of F2 to effuse through a porous membrane. How long would it take for the same volume of UF4 to effuse under the same conditions

296. ## Math

The sum of two numbers is 14. The difference of the numbers is 2. What are the numbers

298. ## Chemistry

Given…Overall reaction: 2 NO2 (g) + F2 (g) → 2 NO2F (g) Rate = k[NO2][F2] a. Can this be a single step reaction? b. Postulate a mechanism using experimental data and chemical intuition come up with a mechanism that fits.

299. ## Chemistry

I've tried to answer some -The reaction mechanism for a reaction is as follows… Step 1 O3 (g) + NO2 (g)→ NO3 (g) + O2 (g) slow Step 2 NO3 (g) + NO2 (g) → N2O5 (g) fast a. Write the overall reaction equation. b. Identify the molecularity of each step.

300. ## Chemistry

. For the reaction 2H2(g) + 2NO(g) → N2(g) + 2H2O(g) The observed rate law is Rate =k[NO]2[H2] The mechanisms shown below have been proposed to explain the kinetics of the above reaction Which of the following are acceptable mechanisms? Explain you

301. ## math

Kim has 4/10 of a dollar. Carla has 40/100 of a dollar. Who has more money? Explain

302. ## prealgebra

change 40 miles per hour to miles per second

303. ## math

what is four fifths+three fifths

304. ## Chemistry

I've figured out the Ea but I'm not sure how to find the kcal/mol The gas reaction N2O5 → 2NO2 + 1/2O2 follows the Arrhenius equation k = Ae(-Ea/RT) where R = 8.314 J K-1 mol-1 and 1 calorie = 4.184J. At the temperature T=273K, k = 3.46 x 10-5 s-1,

305. ## Math

The sum of two numbers is 14. The difference of the numbers is 2. What are the numbers

306. ## Chemistry

I've figured out most of it. I'm not sure how to find the percentage ofd the isotope. Define the half life. The half-life of a radioisotope is found to be 4.55 minutes. If the decay follows first order kinetics, what percentage of isotope will remain after

307. ## Math

More than 18'students in an algebra class pass the first test. This is about three-fifths of the class. How many students are in the class? How do you know?

308. ## stats

below is the sales experience(in months) and the number of computers sold the the previous month of seven sales people. Experience 4 12 9 6 10 30 7 Sales 19 42 28 31 39 30 21 Using the Minitab info write the straight line(least squares) equation and the

309. ## Spelling Analogy

glue: sticks thorns:?

Adam is 5 years younger than Eve. In 1 year, Eve will be three times as old as Adam was 4 years ago. Find their ages now.

311. ## Math

He spent 2/3 of his money. The movie cost 6. How much does he have left

312. ## Chemistry

is Fe3O4 + 4H2 = 3Fe + 4H2O spontaneous at 298 K? Delta H system= 149.8 kj/mol Delta S system= 610.0 kj/mol

313. ## algebra

Find S10 for 2 + 5 + 8 +... A. 155 B. 152 C. 255 D. 135 I say A.

314. ## algebra

Find S25 for 1/2 + 1 + 3/2 + 2 +... A. 160 B. 162 C. 160.5 D. 162.5 I think D

315. ## Math

Complete 0.246X10= Is it .0246

316. ## algebra

Find S25 for (-7) + (-2) + 3 + 8 +... A. 1,320 B. 1,325 C. 825 D. 820 I think A

317. ## business math

Samantha Vega gross weekly salary is 600 dollars her weekly federal withholding is 35 dollars . the Social Security tax is 6.2 percent of the first 90,000 . the Medicare tax is 1.45 percent of gross pay. this state tax is 1.5 percent of gross pay. each

318. ## algebra

Find S10 for (-1) + (-7) + (-13) + (-19) +... A. 250 B. -280 C. (-23) D. 132 C.

319. ## algebra

Find the 11th term of the arithmetic sequence 7, 4.4, 1.8, -0.8, … A. -33 B. -19 C. 33 D. 19 B

320. ## trigonometry

From a point 55 feet in front of a church, the angles of elevation to the base of the steeple and the top of the steeple are 35 degree and 49 degree 20 minutes, respectively, Find the height of the steeple. (Round your answer to one decimal place).

asked by andre lessa
321. ## math hw

the areas of two rectangles are 15 square inches and 16 square inches. the length and width of both figures are whole numbers. if the rectangles have the same width, what is the greatest possible value for their widths? please show work

322. ## Math

Write the following number in standard form (4X10 4th power)+(3X10 3rd power)+(2X10 2nd power)+(5X1)=

324. ## Stats

Could someone please explain to me how I would read a z table. I have a z score of 2.2 and I need to know what the percentages is. Then if I'm given 8% how do I find the z score?

325. ## Math

There are 6 dancers in a program. Each dancer will preform a short dance with each of the other dancers before the program is over. How many dancers will there be

326. ## statistics

A balloon mannufacturer kows that historically her company has produced 614 balloons per day (standard deviation =36) she has changed the process and wants to know wheathert he new process is increased the number of ballons made. the sample mean is 620.

327. ## math

y^2+4y-32=0 what is the greatest factor

328. ## physics

A 346 W bulb and a 173 W bulb are both designed to operate at standard household voltage of 120 V. Determine which bulb has the lower ﬁlament resistance and then calculate the value of its resistance. Answer in units of Ω

329. ## English

marco was careful to wash his hands because he did not want to contract a disease what is the meaning of the word contract as it is used in the sentence above? a. a binding agreement between two parties b. reduce in size c. acquired involuntarily d. make a

330. ## physics

The electrons in a beam are moving at 2.8 × 108 m/s in an electric ﬁeld of 17000 N/C. What value must the magnetic ﬁeld have if the electrons pass through the crossed ﬁelds undeﬂected? Answer in units of µT

331. ## Math

There are 6 dancers in a program. Each dancer will preform a short dance with each of the other dancers before the program is over. How many dancers will there be

332. ## Physical science

When a crate slides down an incline at a constant velocity it is

333. ## Rational expressions

(2c-d)/(c^2d)+(c+d)/(cd^2)

334. ## math

Suppose a car cost 32000 and you are allowed to make a down payment of 20%, but have to borrow the remaining 80%. If you are allowed 5 years to pay back the loan, how much will you pay back monthly?

335. ## Chemistry

The decomposition of hydrogen peroxide is first order in H2O2: 2H2O2(aq) → 2H2O(l) + O2(g) Rate = k [H2O2] How long will it take for half of the H2O2 in a 10-gal sample to be consumed if the rate constant for this reaction is 5.6 x 10-2 s-1?

336. ## Physics

An astronomer looks at a comet which is 5.92 x 109 km away. How many minutes did it take the light from the comet to reach the astronomer?

337. ## Physics

A radio tunes in radio waves which have a wavelength of 3.13 meters. What frequency is the radio tuned to in MHz?

338. ## Physics

A 100 watt bulb emits light in all directions. The distance R from the bulb is equal to 1.0 meter. Complete the table below with calculated values of intensity of the bulb. Distance from Source Intensity (W/m2) R ? 2R ? 3R ? c) If the bulb was replaced by

339. ## math

Suppose a car cost 32000 and you are allowed to make a down payment of 20%, but have to borrow the remaining 80%. If you are allowed 5 years to pay back the loan, how much will you pay back monthly?

340. ## chemistry

what is the pH of a solution that has 12.2 grams of hydrochloric acid in 500 ml of water

341. ## English

The students felt fairly prepared for whatever tests their instructors might give them, after years of intense studying, however difficult the test might be. which group of words is misplacef in the sentence above? a.however difficult they might be b. the

342. ## English

______ and______ have been to class a. He, me b. He,I c.him, m d.him, I

343. ## calculus

Evaluate the following line integral: ∮C[(4x^2+3x+5y)dx+(6x^2+5x+3y)dy] where C is the path around the square with vertices (0,0),(2,0),(2,2) and (0,2).

344. ## math

What are the last three digits of the greatest common divisor of 2^(2^100−1)−1 and 2(2^105−1)−1?

345. ## math

6^(2log(x)) = 8

346. ## Us History

How did social responsibility of businesses change during the Great Depression era?

347. ## algebra one

negative three times a number increased by seven is less than negative eleven

348. ## algebra one

three times the sum of a number and six is greater than four times the number decreased by two