# Questions Asked onOctober 20, 2011

1. ## Chemistry

Each value below represents a different aqueous solution at 25 °C. Classify each solution as acidic, basic, or neutral. pH=9.72 pOH=4.69 pOH=13.62 [H+]=7.5e-2 [H+]=7.8e-9 [H+]=1e-7 [OH-]=4.5e-12 [OH-]=3.5e-5 pH=4.09 pOH=7

2. ## Physics 3

A potential energy function for a two-dimensional force is of the form U = 3x3y – 7x. Find the force that acts at the point (x, y).

3. ## physics

A 53.5 N object is in free fall. What is the magnitude of the net force which acts on the object? Answer in units of N What is the magnitude of the net force when the object encounters 15.4 N of air resistance? Answer in units of N What is the magnitude of

A ball of mass 0.4 kg, initially at rest, is kicked directly toward a fence from a point 20 m away, as shown below. The velocity of the ball as it leaves the kicker’s foot is 16 m/s at angle of 46◦ above the horizontal. The top of the fence is 4 m

5. ## Chemistry

Complete this table of values for four aqueous solutions at 25 °C. Solution A: [H+]=0.0093M [OH-]=? pH=? pOH=? Solution B: [H+]=?[OH-]=1.4e-6M pH=? pOH=? Solution C: [H+]=?[OH-]=? pH=5.36 pOH=? Solution D: [H+]=?[OH-]=? pH=? pOH=10.14

6. ## Chemistry

What are the concentrations of OH– and H in a 0.00070 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.

7. ## Chemistry

Calculate [H3O ], [ClO4–], and [OH–] in an aqueous solution that is 0.130 M in HClO4(aq) at 25 °C. [H+]= [ClO4-]= [OH-]=

8. ## Chemistry

Nitrogen dioxide, NO2, dimerizes easily to form dinitrogen tetroxide , N2O4 : 2NO2N2O4 a) Calculate Change in reaction G* and K for this equilibrium. b) Calculate the (e) (the measure of the progress of the reaction) for this equilibrium if 1.00 mol NO2

25. ## Chemistry

Calculate [H3O ], [ClO4–], and [OH–] in an aqueous solution that is 0.130 M in HClO4(aq) at 25 °C. [H+]= [ClO4-]= [OH-]=

26. ## physics

A generating station is producing 1.2 x 106 W of power that is to be sent to a small town located 4.2 km away. Each of the two wires that comprise the transmission line has a resistance per length of 5.0 x 10-2/km. (a) Find the power lost in heating the

asked by shaknocka lewis
27. ## Science

A child in a boat throws a 5.30 kg package out horizontally with a speed of 10 m/s, see the figure. Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 26.0 kg and that of the boat is 55.0 kg

28. ## math (brainteaser)

The pahges in jacks book are numbered from the number 1, there are 555 didgits ow many pages in Jacks book

29. ## statistics

A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. a. What proportion of students

30. ## Physics

A car starts from rest and accelerates unifomly at 3m/s^2. A second car starts from rest 6 seconds later at the same point and accelerates uniformly at 5m/s^2. How long does it take the second car to over take the first car?

31. ## physics

The fastest recorded pitch in Major League Baseball was thrown by Nolan Ryan in 1974. If this pitch were thrown horizontally, the ball would fall 0.809 m (2.65 ft) by the time it reached home plate, 18.3 m (60 ft) away. The acceleration of gravity is 9.81

32. ## math

The number uses every number 0-9 the numbers are used only once the fourth digit is 4 the first digit in the billions place is 3 the 5 is next to the last digit the sixth digit is 7 the digit after 3 is 9 the digit before 5 is 2the third digit is half the

33. ## Physics

A dragster and a driver together have mass of 942.2 kg. the dragster starting from rest attains a speed of 25.5m/s in 0.56 s. 1. find the average acceleration of the dragster during this time interval? I really need the formula 2. What horizontal force

34. ## physics

At a track-and-field meet, the best long jump is measured as 8.00 m. The jumper took off at an angle of 46° to the horizontal. (a) What was the jumper’s initial speed? (Neglect air resistance.) 1 m/s (b) If there were another meet on the Moon and the

35. ## nutrition

Review the nutrition quality of the items, using what you know about daily values, and ingredients (one of the products must have a health claim). Write a 300-500 word essay on what you have learned.

36. ## Physics 5

Two blocks are free to slide along the frictionless wooden track ABC shown in Figure P9.20. A block of mass m1 = 5.00 kg is released from A. Protruding from its front end is the north pole of a strong magnet, repelling the north pole of an identical magnet

37. ## Chemistry

Complete this table of values for four aqueous solutions at 25 °C. Solution A: [H+]=0.0093M [OH-]=? pH=? pOH=? Solution B: [H+]=?[OH-]=1.4e-6M pH=? pOH=? Solution C: [H+]=?[OH-]=? pH=5.36 pOH=? Solution D: [H+]=?[OH-]=? pH=? pOH=10.14

38. ## college chemistry

Calculate the equilibrium concentration of H3O+ in the solution if the initial concentration of C6H5COOH is 6.0×10^-2. Kc=6.3 *10^-5

39. ## ALGEBRA

why dose duffer want lights around the golf course? there are 40 empty spaces

asked by Brendan Riddell
40. ## chemistry

A gas cylinder of volume 5.00 L contains 1.00 g of Ar and 0.500 g of Ne. The temperature is 275 K. Find the partial pressure of Ne.

41. ## Geometry

what is the value of x in the isosceles trapezoid below? the top is 10x degrees and the bottom is (3x+11) degrees

42. ## chemistry

Calculate [H3O ], [ClO4–], and [OH–] in an aqueous solution that is 0.130 M in HClO4(aq) at 25 °C.

43. ## Physics*

A student sits on a rotating stool holding two 3.2-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is

44. ## chemistry

How many grams of HCl are produced according to the following equation, H2 + Cl2 = 2 HCl, when 4.0 g of hydrogen reacts completely?

51. ## Calculus AB

Give a formula for the extended function that is continuous at the indicated point. F(x)= (x-4)/((√x)-2) at x=4 I know the answer I just need to figure out how to work it out. The answer btw is y= (√x) + 2

52. ## Physics

Two long parallel wires separated by a distance, d, carry currents in opposite directions. If the left-hand wire carries a current i/2, and the right-hand wires carries a current i, determine where the magnetic field is zero.

53. ## Math

If you had a fraction strip folded into twelfths, what fractional lengths could you measure with the strip? b. How is your answer in part (a) related to the factors of 12?

54. ## chemistry

write the molecular, ionic and net ionic equation for the following Ph(NO3)2 + NaOH Pb(NO3)2 + Na2CO3 Ni(NO3)2 + NaOH Ni(NO3)2 + Na2Co3

55. ## physics

Take the mass of the Earth to be 5.98 × 1024 kg. If the Earth’s gravitational force causes a falling 74 kg student to accelerate downward at 9.8 m/s2, determine the upward acceleration of the Earth during the student’s fall. Answer in units of m/s2

56. ## chemistry

In the following experiment, a coffee-cup calorimeter containing 100 mL of H20 is used. The initial temperature of the calorimeter is 23.0 C . If 3.60 g of CaCl2is added to the calorimeter, what will be the final temperature of the solution in the

73. ## spanish

que les gusta hacer a los padres de ruben

74. ## math

The atmospheric pressure P in pounds per square inch (psi) is given by the formula below, where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 13.25 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round your

75. ## Finance

Which of the following statments is CORRECT? a. Assume that two bonds have equal maturities and are of equal risk, but one bond sells at par while the other sells at a premium above par. The premium bond must have a lower current yeild and a higher capital

76. ## Physics

A 0.90 × 10^3 kg sports car collides into the rear end of a 2.4 × 10^3 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 4.6 m before stopping. The police officer, estimating the coefficient of kinetic

77. ## Physics

A 245 g particle is released from rest at point A inside a smooth hemispherical bowl of radius 35.0 cm, as shown in Figure 5-21. (a) Calculate the gravitational potential energy at A relative to B. 1 . (b) Calculate the particle's kinetic energy at B. 2

78. ## Physics 2

A particle moves along a line where the potential energy of its system depends on its position r as graphed in Figure P8.46. In the limit as r increases without bound, U(r) approaches +1 J. (a) Identify each equilibrium position for this particle. Indicate

79. ## Math

a) f(x) = 4.1x +92.16 b) f(x) = 17.9x + 19.36 c) f(x) = 8.8x + 55.4 ANSWERS: a) 4.8 b) 0.93 c) 2.2, i just have no clue how they got these answers EXTRA INFO: The demand function for a new product is p(x)= - 4x +42.5, where x is the quantity sold in

80. ## Alg1

A baseball player hits a baseball into the outfield. The equation h= -0.005x^2 +x+3 give the path of the ball, where (h) is the height and (x) is the horizontal distance the ball travels. A. What is the equation of the axis of symmetry? It's -100 right? B.

81. ## Math

A baseball player hits a baseball into the outfield. The equation h= -0.005x^2 +x+3 give the path of the ball, where (h) is the height and (x) is the horizontal distance the ball travels. An outfielder catches 3 ft above the ground. How far has the ball

82. ## Math (UBC)

Economists use production functions to describe how output of a system varies with another variable such as labour or capital. For example, the production function P(L) = 200L + 10L^2 - L^3 goves the output of a system as a function of the number of

83. ## Conley

Chicken Delight claims that 88 percent of its orders are delivered within 10 minutes of the time the order is placed. A sample of 60 orders revealed that 50 were delivered within the promised time. At the .05 significance level, can we conclude that less

84. ## ALGERBRA 2

rosalyn works no more than 25 hours a week during the school year. she is paid $12 an hour for tutoring geometry and$8 an hour for delivering pizzas for Pizza King. she wants to spend at least 2 hours but no more than 7 hours a week tutoring. find

85. ## Physics

A 0.490 kg hockey puck, moving east with a speed of 5.80 m/s, has a head-on collision with a 0.870 kg puck initially at rest. Assume a perfectly elastic collision. (Let east be the +x direction.) (a) What will be the speed of each object after the

86. ## Chemistry

A mixture containing 235 mg of Helium and 325 mg of neon has a total pressure of 453 torr. What is the partial pressure of Helium

87. ## Finance - Net Advantage to Leasing

Net advantage to leasing) Arkansas Instruments (AI) can purchase a sonic cleaner for $1,000,000. The machine has a five-year life and would be depreciated straight line to a$100,000 salvage value. Hibernia Leasing will lease the same machine to AI for

88. ## chemistry

A 48 g sample of water at 98.°C is poured into a 55 g sample of water at 15°C. What will be the final temperature of the mixture?

89. ## Psychology

If a negative correlation between two sets of scores is displayed as a scatterplot, the points are clustered in a pattern that Question 5 options: resembles a bell-shaped curve. extends from the lower left to the upper right of the plot. resembles a

90. ## Finance

Which of the following statements is CORRECT? a. Two bonds have the same maturity and the same coupon rate. However, one is callable and the other is not. The difference in prices between the bonds will be greater if the current market interest rate is

91. ## physics numerical

a long horizontal wire is rigidly placed, carrying a current of 50a. another parallel long wire carrying a current of 40a is just supported above it.determine the distance between them at which the upper wire can be just supported by magnetic repulsion

92. ## Physics 4

A 10.0-kg block is released from point A in Figure P8.57. The track is frictionless except for the portion between points B and C , which has a length of 6.00 m. The block travels down the track, hits a spring of force constant 2 250 N/m, and compresses

93. ## physics

During a baseball game, a batter hits a pop- up to a fielder 78 m away. The acceleration of gravity is 9.8 m/s2 . If the ball remains in the air for 5.8 s, how high does it rise?

A man went to a post office to buy stamps. He bought x, 50 cent stamps and y, 25 cent stamps for $3.50. If he bought twice as many 50 cent stamps and half as many 25 cent stamps, the cost would be$4.75. Evaluate x and y

95. ## CHEMISTRY

What are the ka and kb reactions of NaHSO3 ?

96. ## english

A good strong thesis statement about the children's book Corduroy by Don Freeman

97. ## Ap chem

When .4000 g of CH4 is burned in excess oxygen in a bomb calorimeter that has a heat capacity of 324, the temperature increases 6.795 degrees celsius. How much energy is released? (in kJ/mol CH4)

106. ## math

a chemistry experiment calls for 30% sulfuric acid solution. if the supply room has only 50% and 20% sulfuric acid solution on hand,how much of each should be mixed to obtain 12 litres of 30% solution?

107. ## Spanish

I had to rewrite from English to Spanish-Please check if I did them correctly- 1.She sees them. Ella los ve. 2. We see them. Nosotros los vemos. 3. I invito you. Yo te invito. 4. I invite him. Yo lo invito. 5.She see you all. Ella los ve. 6. He invites us.

108. ## Nutrion

What types of pathogens? What habits in your food preparation practices do you think might cause these pathogens to grow? What habits can you change in your life to reduce your risk of foodbourne illness?

109. ## physics

A long jumper leaves the ground at an angle of 22.1◦ to the horizontal and at a speed of 10 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s2 . Answer in units of m

110. ## physics

A ball is thrown horizontally from the top of a building 30.1 m high. The ball strikes the ground at a point 66.8 m from the base of the building. The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s

111. ## Chemistry

so i had to calculate the pH of a 100ml solution of .10M acetic acid (ka=1.8x10(-5) I came out to 2.87. But then, they want the pH if 50ml HCL is added. So i thought...Ka = x2/.15M, therefore the square root of .15M x 1.8x10(-5) = .00164(concentration). So

112. ## logic and programing langage

Design a modular program that asks the user to enter the replacement cost of a building and then displays the minimum amount of insurance he or she should buy for the property.

113. ## physics numerical

a satellite orbitting the earth at the equator at a na ltitude of 400 km, has an antenna that can be modelled as a 2.0m long rod. the antenna is oriented perpndicular to the earth's surface. at the equator, the earth's magnetic field is essentially

114. ## Algebra

Find the percent of error of each measurement. 0.2cm 0.4cm

115. ## Algebra

The equation x^2+px+q=0, q cannot be equal to 0, has two unequal roots such that the squares of the roots are the same as the two roots. Calculate the product pq. I think the obvious root would be one but the second roots i just can't figure out!

116. ## Physics

A 2.5 kg block is launched up a ramp at 9.0 m/s. If the ramp is 35 degrees above the horizontal and the coefficient of static friction is 0.60, while the coefficient of kinetic friction is 0.25. a. How far does the block go up the ramp from its starting

117. ## chemistry

A 10.0 grams piece of gold 90.0 Celsius was stirred into 15.0ml of water at an initial temperature of 25.0 degrees Celsius. The final temperature of the water was 26.34 degrees celsius. Calculate the specific heat of gold. The specific heat of water is

118. ## Spanish

I need to match the subject pronouns with the verb llevar these are the verbs: llevas, llevamos, llevo, llevan, lleva these are the subj. pronouns: yo, el, nosotros, ellas, tu, ella, ellos, ustedes. PLEASE HELP

119. ## chemistry

Hydrogen, H2(g), is above silver metal in the activity series of the metals. WIll the follwing reaction, Ag(s) + H+(aq) -> occur or not occur? why or why not?

120. ## Mathematics

After diving 92m below the sea level, the diver rises at a rate of 5 meters per minute for 7minutes. Where is the diver in relation to the surface?

121. ## Chemistry Help!!

why is it impossible to draw a distinction between natural substances and chemical substances?

122. ## chemistry

a 2.00-liter sample of a gas has a mass of 1.80 grams at STP. What is the density , in grams per liter , of this gas at Stp?

123. ## Math

A computer game starts with a set of 144 tiles separated into 36 equal groups.Sara played the game until there were 8 groups of tiles left.How many tiles were left when Sara finished?

124. ## Math

A manufacture of television sets has a historical defective rate of ten percent. a. what is the probability that in an hourly production run of 10 televisions, one will be defective b. What is the probability that in an hourly daily production run of 10

125. ## chemistry help!

Potassium has an atomic mass of 39.10amu. a sample of potassium is made up of isotopes potassium-39 (mass=38.964) and potassium-41(mass =40.962 amu). What percentage of the potassium sample is potassium-39? what percent of the sample is potassium-41?

126. ## Finance

Which of the following statements is CORRECT? a. Two bonds have the same maturity and the same coupon rate. However, one is callable and the other is not. The difference in prices between the bonds will be greater if the current market interest rate is

127. ## Physics

A 21.0-g metal cylinder is placed on a turntable, with its center 90 cm from the turntable's center. The coefficient of static friction between the cylinder and the turntable's surface is ìs = 0.84. A thin, massless string of length 90 cm connects the

128. ## zoology

what is the dental formula of rabbit?

129. ## High School

Will high school will look at my middle school grades (or just 8th grade grades ?) ????

130. ## Calculus

Show that the sum of the series ∑n(p^n) from n=1 to infinity (where 0

131. ## Statistics

USA snapshot presented a bar graph depicting business travelers’ impression of wait times in airport security lines over the past 12 months. Statistics were derived from Travel Industry Association of American Business Traveler Survey of 2034

132. ## Math

write a function. f(x), that represents the cost of renting a car for x days with a total of 80 kilometers if there is a fixed charge of $17 per day and a charge of$0.35 per kilometer.

133. ## Calculus

Find the Critical Numbers? 1.) f(x) = 2x^3 + 3x^2 + 36x x=? 2.) g(t) = |5t − 4| t=?

134. ## English/writing

If I am writing the following as a poem, how would I punctuate it- We are room 204 Check out our door It is clear to see We choose to be drug free

135. ## chemistry

how many milliliters of concentrated NaOH(19.3 M) are needed to make 8.00 L of 0.25 M base solution?

136. ## urgent maths help needed now

jafar has an isosceles triangle with an area of 20.25cm squared, what is the length of the side facing the right angle?

137. ## physic

A 16 g bullet strikes and becomes embedded in a 1.10 kg block of wood placed on a horizontal surface just in front of the gun. If the coefficient of kinetic friction between the block and the surface is 0.24, and the impact drives the block a distance of

138. ## physics

A ball is thrown horizontally from the top of a building 30.1 m high. The ball strikes the ground at a point 66.8 m from the base of the building. The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s

139. ## physics

A car having an initial speed of 16 m/s is uniformly brought to rest in 4.0 s. How far does the car travel during this 4.0 s interval?

140. ## aLgEbrA variable & expression

i need to define a variable and write an algebraic expression for each phraase. 1) two points few than 3 times the number of points scored yesterday. i wrote: 3p-2 = 2) one metere more than 6 times your height in meters i wrote: 1 + 6h 3) seven pages fewer

145. ## English

I need your help with the following sentences. Are they grammatically correct? Thank you. 1) How long have you been married for? Since 1998. 2) Is it wrong: "How long is it since you got married? (The answer is not since 1998 but for three years). 3) How

146. ## physics

A simple harmonic oscillator has spring constant = 8.8N/m , amplitude = 11cm , and maximum speed 4.6 m/s. what is the speed at x=6cm?

147. ## english

How do i make an outline? From Lord of the Flies, i need to make an outline of one page. this one: The boy with fair hair lowered himself down the last few feet of rock and began to pick his way toward the lagoon. Though he had taken off his school sweater

148. ## Chemistry

If 4.0 g of hydrogen and 10.0 g of oxygen are mixed according to the equation 2 H2 + O2 = 2 H2O, which is the limiting reagent?

149. ## Chemistry

When a solution is made from 1.0 g of KI and 90 mL of water, what is its molarity?

150. ## CHEMISTRY

What are the ka and kb reactions of NaHSO3 ? I tried it out and thought it would be ka= HSO3-(aq) + H2O(l)= H+(aq) + SO3-(aq) kb= HSO3-(aq) + H2O(l)= H3O+(aq)+ OH-(aq) Would that be right? or is it wrong? please can you take a look at it . Thanks.

151. ## maths

If (2x-3) is a factor of 2x raised to the power four-3xsquare+15x-15k,find the value of (3k- root of 5 k).

asked by maths rockzzz
152. ## maths

one side of a right triangle is 12.5 ft the perimeter is 38.7 ft. what is the length of the hypotenuse and the other unknown side?

157. ## algebra

A charitable fund's balance is modeled by y = -4.1x^2 + 7.1x + 145, where y is the balance and x is the years after 1996. If no money is added to the fund, in how many years will the fund have a balance of 0? Round to the nearest year.

158. ## math

a chemistry experiment calls for 30% sulfuric acid solution. if the supply room has only 50% and 20% sulfuric acid solution on hand,how much of each should be mixed to obtain 12 litres of 30% solution?

159. ## physics

Vector {\bf{\vec V}}_1 is 6.3 units long and points along the negative x axis. Vector {\bf{\vec V}}_2 is 8.5 units long and points at 30^\circ to the positive x axis.

160. ## physics

Vector {\bf{\vec V}}_1 is 6.3 units long and points along the negative x axis. Vector {\bf{\vec V}}_2 is 8.5 units long and points at 30^\circ to the positive x axis.

asked by help me plzzzzz
161. ## Physics

In an amusement ride, fun seeking people enter a 7.4 meter diameter cylinder and stand up against the wall. The cylinder spins fast enough so that when the bottom drops down 2 meters, the people remain pinned to the wall. The cylinder continues to rotate

162. ## philosophy

This is a case and i need to identify which to theories apply to it out these three Kant's deontology, Mill's utilitarianism, and Hursthouse's virtue ethics. In the summer of 1945, President Harry Truman ordered the atomic bombing of the Japanese cities of

163. ## Math

There are 3 spider webs. The 1st web is twice as large as the second web. The 3rd web is 3 inches larger than the 1st web. The combined width of the 3 webs is 1 foot 6 in. How long is each web?

164. ## Math

Leo has 8 more markers than colored pencils. He has a total of 32 markers and colored pencils. How many of each kind does he have?

165. ## Calculus

If a_n >0 and b_n >0 and series ∑ sqrt( (a_n)^2 +(b_n)^2 ) converges, then ∑a_n and ∑b_n both converge. True or false? If true, why? If false, give a counterexample.

166. ## physics

A ball is thrown horizontally from the top of a building 30.1 m high. The ball strikes the ground at a point 66.8 m from the base of the building. The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s

167. ## social studies

the two major tribes of the northeastern part of the Eastern Woodlands were the

168. ## statistics

30 customers the first week and 55 customers the second week and 80 customers the third week, what would you project for week 4

169. ## Math

Using known Facts to Find Unknown Facts. You can use breaking apart to find a product. Find 4 x 5. example: 4 x 5= 2x5+2x5 =10 + 10 =20

170. ## Physics

Multiple choice please help. How much kinetic energy does a 1 kg ball have if it has a velocity of 10 m/s? a. 100 J. b. 50 J. c. 10 J. d. 5 J. The airbag in a car works in a collision by . . . a. increasing the time of the impact to the person. b. reducing

171. ## Chinese

Where would I look to find out how to pronounce the Chinese name Xuelin?

172. ## Algebra 2

1/16(x)^3a + 1/2(y)^(6a)(z)^(9b)

173. ## Math

CRANES Season 1: Wins 38 Season 2: Wins 42 Season 3: Wins 31 Season 4: Wins 50 Season 5: Wins 31 Season 6: Wins 48 PANTHERS Season 1: Wins 36 Season 2: Wins 42 Season 3: Wins 40 Season 4: Wins 40 Season 5: Wins 42 Season 6: Wins 40 Which team had the

174. ## Physics

At 7.65 cents per kilowatt-hour, what does it cost to operate a 8.00 hp motor for 7.00 hr?

175. ## Math

for what value of k will the function f(x)=kx^2-4k+k have no zeros

176. ## Math

the graph of the function f(x)=x^2-kx+k+8 touches the x-axis at one point. What are the possible values of k

177. ## Algebra

I'm working midpoints, distance, circles and standard form and general form. I have some questions with my answers to the first two-I'm stuck on #3 1. What is the distance between points (0,0) and (-3,5) My answer: sqrt34 2.What is distance between (3,1)

178. ## Math

A computer game starts with a set of 144 tiles separated into 36 equal groups.Sara played the game until there were 8 groups of tiles left.How many tiles were left when Sara finished? How do you get 32 tiles?Can you please explain?Thanks

179. ## algebra

how do you get square root of (72)+ square root of (18) + square root of (50)

180. ## algebra

Can someone show me how to use fractional exponents to solve 5^(1/4)*5^(2/3) and then convert to radicals and simplify to the lowest terms?

181. ## CHEMISTRY

What are the ka and kb reactions of NaHSO3 ? i know you got to ignore Na because is a strong base but i don't know how to get the actual ka and kb ! pleasee help me!!!!!!!!!!!!

182. ## Math

a) f(x) = 4.1x +92.16 b) f(x) = 17.9x + 19.36 c) f(x) = 8.8x + 55.4 ANSWERS: a) 4.8 b) 0.93 c) 2.2, i just have no clue how they got these answers EXTRA INFO: The demand function for a new product is p(x)= - 4x +42.5, where x is the quantity sold in

183. ## Math

The marching band, cheerleaders, and chaperones are traveling by bus to play in the Citrus Bowl parade in Orlando. There are 216 bank members, 32 cheerleaders, and 40 chaperones making the trip. They can rent any number of one type of bus shown in the

184. ## 5th Grade Science

Creation of landforms??

185. ## COMM 215

Please guide me on what I have done incorrectly: Part I: True or False 1. The following word group is a FRAGMENT: That movie, one of my favorites. X True __False 2. The following word group is a FRAGMENT: The local baseball team, needing a good pitcher

I need assisatnce with this. I do not want the answer I just want some guidence on how I should start it. The width of a rectangle is 5 ft, its length is (3x+2) ft, and its area is 75 ft². Find x

187. ## Math

The equation x^2+px+q=0, q cannot be equal to 0, has two unequal roots such that the squares of the roots are the same as the two roots. Calculate the product pq.

asked by Ricky C.
188. ## Science

A container with equal sides of 8 cm is filled with 1200g of fluid. What is the force in Newtons on the bottom of the container?

189. ## Spanish

I need to match the subject pronouns with the verb llevar these are the verbs: llevas, llevamos, llevo, llevan, lleva these are the subj. pronouns: yo, el, nosotros, ellas, tu, ella, ellos, ustedes. PLEASE HELP

190. ## math

if their are 72 students 2/3 of the students are 12 years old how many are 12 years old

191. ## Math

How do I convert a decimal to a fraction. .350 My answer: 350/100

192. ## programming

Part A: Write a code segment that inputs an integer from cin, and then outputs a row of that many stars on cout. Part B: Change the code segment to read a series of numbers from file indata, and print a row of stars on cout for each number read.

193. ## Psychology

example of work smarter, not harder. I need one sentence of how this phrase could apply to launching internet search.

194. ## history

what safeguards are containded in the constitution to protect the states from violations of their rights

195. ## SOCIAL STUDIES

despite such limits athens is still admired as an early model of democracy

196. ## math

I am a 4 digit number greater than 9,000 my omes digit is 3 and my hundreds digit is the smallest prime number greater than 5 the sum of my digits is 20. What number am i?

197. ## geometry

draw two points r and s then sketch rs add a point t on ray so that s is beetween r and t

198. ## SCIENCE

Craig sees a glass with ice tea sitting on the table. He notices that there is a great deal of moisture on the outside of the glass and a puddle of water on the table. He asks his family what they think causes the water to form on the outside of the glass.

199. ## Math( help please ! )

For what values of k will the function f(x)=3x^2+4x+k=0 have no zeros, one zero, 2 zeros

200. ## Math

Prove that if "a" is a unit in a ring R with unity, then "a" is not a zero divisor in R.

201. ## grammar

Does this sentence need a comma? Gum and drinks are not allowed, because they can create disasters in the dirt-free zone.

202. ## algabra

cubes 1 and 2 are similar if the volume of cube 2 is 45 and the scale factor between sides of the two is 2:3 what is the volume of cube 1?

203. ## science

In the 1980s a popular environmental slogan was "Reduce, Reuse and Recycle" and now "Go Green," is a popular message. Consider the Reusable Grocery Bags sold in markets everywhere. What are the pros and cons that you see in this latest trend? Give examples

204. ## Algebra

How do you factor out y=x^3-9x^2+9

205. ## Physics

110.817

asked by swim chick
206. ## physics

George takes off for a long jump at an angle of 28 degrees, and lands 6.9 m away. How fast was he when he jumped?

207. ## statistics

Assuming that the data are normally distributed with a mean of 45 and a standard deviation of 3.25, what is the z-score for a value of 40?

208. ## math

Find the number of decibels for the power of the sound. Round to the nearest decibel. A rock concert, 5.36 multiplied by 10-6 watts/cm2 D = mark dB

209. ## math

The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 98.7% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed? yr

210. ## math

linear equations

211. ## physics

A 0.82 kg physics book with dimensions of 32.4 cm by 20.1 cm is on a table. What force does the book apply to the table? Answer in units of N

212. ## MCC

Design a modular program that asks the user to enter the replacement cost of a building and then displays the minimum amount of insurance he or she should buy for the property.

213. ## math

there are seven pies if i take away 2 1.3 how many are left

214. ## CHEMISTRY

What are the ka and kb reactions of NaHSO3 ? i know you got to ignore Na because is a strong base but i don't know how to get the actual ka and kb ! pleasee help me!!!!!!!!!!!!

215. ## English

Thank you. Can you please clarify this doubt to me? If the answer is "since 1998" can the question be: How long is it since you got married"? Is the sentence "How long ago did you marry"? wrong. The verb is "get married". When did you divorce your fist

216. ## English

I forgot to add this sentence. 1)How long is it since it last snowed? ..... December. (Which is the correct preposition?)

217. ## Economics

Your demand curve for baseball tickets is as follows: price per ticket Qd $1 4$2 3 $10 2$20 1 YOu buy 2 tickets at $10 each. THe value yo you of the two tickets is what? It say the answer is$30. I do not understand why you have to add 10 and 20. I

218. ## physical chemistry

if 10 litres of a solution of na2co3 contains 21.2g of na2co3, what is its strength?

219. ## Phys sci

we are makeing rube goldberg machiens but are problem is hot to activate the pulley by putting the string in to the fire befor its time and makeing the machine do other things.

220. ## algebra

26.8 over .01 it says to evaluate each expression

221. ## algebra

26.8 over .01, I don't know what to do with this it is set up so it looks like a fraction, could this mean divide 26.8 by .01?

222. ## English

Could you please check these sentences for me? Thank you very much for your invaluable help. 1) I find it difficult to translate the following description into English since I don't know how old the students are in their fifth or sixth class. How old are

223. ## math

a rectangle has an area of 330m^2 , one side is 7 m longer than the other what are the dimensions of this rectangle

224. ## Math

Mike bought 252 bricks to build a wall in his yard. Each row has 14 bricks. Each bricks is 3 inches tall. How many inches tall will be wall be if Mike uses every brick?

225. ## Comm 215

Is this correct 49. To succeed in the new economy, workers will have to learn throughout their careers, adapt to changing circumstances, and have self-motivation.

226. ## SOCIAL STUDIES

In 1900 for health reasons the course of what river was changes in the U.S. making it world's only river to flow backwards?

227. ## Chemistry

Naoh+h2so4--------h20 +na2so4 Now the question is what number of moles of naoh require to neutralize 1 mole of h2sor.

228. ## problem solving

random sampling for tensile strenght 6500 5800 6150 6050 5900 6150 6200 5880 6130 5880dtetermine % 6000psi 67000psi 68000psi

229. ## algebra

i have tried alot of different ways of doing this problem but i cant find the right answer. QUESTION:2and2/3 plus 2/3 plus 1and1/3

230. ## algebra

Use the quadratic formula to find the zeros of the function. Round to tenths if necessary. y = 17x^2 - 21

231. ## Physics

A roller coaster travels 41.9 m at an angle of 15.0◦ above the horizontal. How far does it move horizontally? Answer in units of m

232. ## algebra

each week you gave a quiz in social studies and science class. find the probability both quizzes given on the same day tell if independent or dependent

233. ## Poetry

This is my poem. :P Does it fit into the theme of loneliness? Loneliness Never Sleeps. I scream, call for help, my lungs frozen in ice I can't breathe, I'm alone, my screams don't suffice My heart pounding hard, wishing someone would hear I begin to taste

234. ## ETH125

Did Hungarians face prejudice, segregation, racism, or any combination of the three?

235. ## Math

Janice is running a 7613 meter race. Assume the she runs at a constant speed of 287 meters per minute. Express the function f(t) that gives her distance from the finishing line t minutes after the start of the race.

236. ## physics

A car has a mass of 1.34 × 10^3 kg. If the force acting on the car is 6.46 × 10^3 N to the east, what is the car’s acceleration?

237. ## Math( help please ! )

for what value of k will the function f(x)=kx^2-4k+k have no zeros the graph of the function f(x)=x^2-kx+k+8 touches the x-axis at one point. What are the possible values of k

238. ## Math( help please ! )

a) f(x) = 4.1x +92.16 b) f(x) = 17.9x + 19.36 c) f(x) = 8.8x + 55.4 ANSWERS: a) 4.8 b) 0.93 c) 2.2, i just have no clue how they got these answers EXTRA INFO: The demand function for a new product is p(x)= - 4x +42.5, where x is the quantity sold in

239. ## Math( help please ! )

In class we learnt operation with radicals how would you answer a question like this determine the length of the line segment from A(-2,7), to B (4,1)?

240. ## English

what is immperative sentence and interrogative sentence

241. ## physics

A girl starting from rest at the top of a 40 m jump, inclined at 30º above the horizontal, has 0.15 coefficient of friction. The jump ends with a frictionless, horizontal part. How far does she land away from the jump, which is 50 m above the horizontal

242. ## Functions

write a function. f(x), that represents the cost of renting a car for x days with a total of 80 kilometers if there is a fixed charge of $17 per day and a charge of$0.35 per kilometer.

How do you think the mode of communication—written, verbal, or electronic—influences the interpretation of a message?

244. ## math

For a fixed element 'a' of a ring R, prove that the set {x exists in R such that ax=0)is a subring of R.

245. ## Stats

The linear correlation coefficient is a numerical value that ranges from -1.00 to +1.00. Describe in a sentence or two the meaning of each of these correlation coefficients: a) -1.00 b) +1.00

246. ## physics

The force of tension of a rope is 300N. If a man is 50 m above the ground, what is the longest time it could take him to get to the bottom?

247. ## SCIENCE

How much variables shoulld be changed?

248. ## English/writing

But would you put commas, periods or anything like that in it. Would every sentence begin with a capital?

249. ## HEalth

how much carboydrates we need in percentage in a day how much Fats we need in a day in percentage Why do we need fat how much percentage of protein we need what is complex carbohydreates

250. ## Physics

I am given two points on an acceleration vs time graph: (-2,13),(4,0). When t = -2s, v = 10 m\s. What velocity at t = 6s? I believe acceleration average is (-13/6), but how do I solve the rest get the correct answer, which is 44.7 m/s? Any help or hints

251. ## sci

Extinction is a natural selection process. Should humans strive to preserve a representative sample of all biomes or aquatic zones? Why should humans be concerned with the extinction rate?

252. ## biology

what questions do affected people, potential parents, and families face when a diagnosis of the sickle cell anemia is made

253. ## English/writing

If I am writing the following as a poem, how would I punctuate it- would each letter at the beginning be a captial, would it have commas or a period. We are room 204 Check out our door It is clear to see We choose to be drug free

254. ## Finance

Consider a firm that has decided to make, but has not yet announced, a large “bonus” cash dividend amounting in the aggregate to $5 million. The firm has 1 million shares outstanding that sell for$20 each. The firm has no debt; there are no taxes; and

255. ## Chemistry Help!!

which element do not combine readily with other elements because they already have eight electrons in their outermost shell?

256. ## Help With math

Solve (3x-2)^2=2

asked by katie A
257. ## trig

Solve system of inequalities by graphing Yx+4

281. ## math

how you figure percents like percent of438 to 789

282. ## Statistics

Find the normal approximation for the binomial probability that x = 5, where n = 12 and p = 0.7. Compare this probability to the value of P(x=5) found in Table 2 of Appendix B in your textbook.

283. ## English

I still have a doubt. Could you check these sentences, too? I last saw Mary a month ago. The last time I saw Mary was a month ago. It has been two months since I last saw her. It has been two months since I saw her for the last time

284. ## Algebra 2

Factor. -16 + 17(5-y²)-(5-y²)² and [x + y + 1][x² - x(y + 1)+(y + 1)²

285. ## Calculus

If a_n>0 and a_(n+1)

286. ## Math

In class we started operation with radicals how would you answer a question like this determine the length of the line segment from A(-2,7), to B (4,1)?

287. ## science

name 3 effects that can be caused by friction

288. ## statistics

perform a two tail hypothesis test on both the legal services satisfaction and the sentence satisfaction variable's data using a .05 significance level.

289. ## math

a tank can be filled by one pipe in 3 .5 hours and emptied by another in 4.2 hours.if both ipes are running, how long will it take to fill an empty tank?

290. ## physics

A ball is thrown straight up with an intial velocity of 85 ft/s. At what times will it have a height of 200 ft?

291. ## math

write 0.9,2/8,0.35 from least to greatest

292. ## science

why do scientist only change one varieble at a time during a experiment ?

293. ## French

What are some french adjectives that end in ant? I'm trying to make a french poem and need words to fit in the blanks: 1. Quand la vie est une fleur Chaque jour est ______ 2. Quand la vie est un livre Chaque jour est ______ 3. Quand la vie est une

294. ## programming

Write a code segment that inputs an integer from cin, and then outputs a row of that many stars on cout.

295. ## jlc

Three is the first number of pair and 8 is second if 50 is first number what is second number?

296. ## algebra

Use the quadratic formula to find the roots of the equation. Round to tenths if necessary. 3x^2 - 4x - 8 = 0