# Questions Asked onOctober 20, 2014

1. ## math

a cyclist bikes at a speed of 6 m/s after rolling down a hill in 3 s. Of the cyclist has a constant acceleration of 2 m/s during the descent, what was the velocity of the cyclist at the top of the hill?

2. ## algebra

An investor wants to receive $1,000 dollars annually from two investments. He has put$4,500 in money market account 4% annual simple interest. How much should he invest in a stock fund that pays 10% annual simple interest to achieve this goal?

3. ## French

La photo, c'est ton truc? Does photo here mean photo in English or photography?

49. ## Math

16) Consider the function f(x)=2x3−6x2−90x+5 on the interval [−6,7]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists at least one c in the open interval (−6,7) such that f′(c) is

50. ## Math

17) Consider the function f(x)=3x3−3x2+4x+2 Find the average slope of this function on the interval (−3,5). By the Mean Value Theorem, we know there exists a c in the open interval (−3,5) such that f′(c) is equal to this mean slope. Find the two

51. ## World History (Ms. Sue)

Which country do you think had a stronger democracy at the end of the nineteenth century, France or England? Why?

52. ## Math

18) Find all numbers c that satisfy the conclusion of the Mean Value Theorem for the following function and interval. Enter the values in increasing order. f(x)=2x6x+12,[1,4]

53. ## Math

Find cos2A when cosA = -3/5 and π/2

54. ## physical

A 1.67-kg block (M1) and a 5.07-kg block (M2) are connected by a massless string. Applied forces, F1 = 11.3 N and F2 = 4.85 N, act on the blocks, as shown in the figure. a) What is the acceleration of the blocks?

55. ## physics

A shop prepares fresh takeout where 40 baked chicken dinners were prepared at a cost of $3.20 each. A 20% spoilage rate is anticipated. The shop sells the dinners at an 80% markup based on cost. They decide to offer a$1-off coupon in a newspaper ad so,

56. ## Trigonometry

Find tan2A when tanA = 1/3 and π

57. ## arithmetic

A set of 7 numbers has a mean of 9. What additional number must be included in this set to create a new set with a mean that is 3 less than the mean of the original set?

58. ## English

Studying verbs and participles. Am I right to say falling is a verb in following sentence? The snow had been falling all night. Trying to learn and think I am pretty sure a verb, LOL!

59. ## chemistry

MgCO2(s)-> MgO9(s) + CO2(g) A. what is delta H reaction when 3.35 mol of CO2 react with excess MgO? B. What is delta H reaction when 305.5 g of MgCO3 decomposes.

63. ## algebra 2

Three shrimp boats supply the shrimp wholesalers on Hilton Head with fresh catch. The Annabelle takes 50% of its catch to Hudson's, 20% to Captain J's, and 30% to Mainstreet. The Curly Q takes 40% of its catch to Hudson's, 40% to Captain J's, and 20% to

64. ## Physics

Two forces 3N and 4N on a body in directions due North and due East respectively.Calculate their equilibrant.

1. (4i) + (2 + 8i) = 2 + 12i 2. 6i + 4i = 10i

66. ## Physics

a boat moves through the water of a river at 5.8m/s relative to the water, regardless the boat's direction. if the current is flowing at 5.04m/s, how long does it take the boat it take the boat to complete a trip consisting of a 443m displacement

67. ## chemistry

When 25.0 ml of 0.500M HCI is added to 25.0ml of 0.500M KOH in a coffee cup calorimeter at 23.50C, the temperature rises to 30.17C. Calculate delta H of this reaction ( assume density of solution = 1g/ml)

68. ## physics

A long, straight, current-carrying wire runs from north to south. If you know the direction of the current, how can you determine the direction of the magnetic field? a. Grasp the wire in your right hand with the thumb in the direction of the current, the

69. ## physics

A 80kg crate Is pushed 35m across the floor with a force of 500n the coefficient of kinetic friction is 0.25 how much for is done on the crate by pushing it"

70. ## Teacherd aide

3.   Which of the following techniques to arouse curiosity would work best with junior high students? A. Set up a curiosity corner. B. Use a "feelie" box. C. Use a teaser to introduce the topic. D. Set up a discovery learning center. I believe it is

71. ## chemistry

Can someone help me with Chemistry Homework Due Tomorrow, Its about the Electrolysis of Hydrochloric Acid Practical we did and I Have to write a summary and I don't get what we did Y10 GCSE Higher Tier

72. ## CHM 300

We did experiment: Spectrophotometry(Determination of iron with 1,10-Phenanthroline) It asks me to find the molar absorptivity of the Fe-phenanthroline complex? How do i find it ? please eplain.

73. ## Chemistry

the human body is 60% water by weight, how much water in liters does a 196lb man contain?

74. ## Health

What are eating disorders? A. An illness that causes serious disturbances to a person’s everyday diet B. An illness that leads to binging C. An illness that causes little disturbance to a person’s everyday diet D. An illness that leads to starvation A?

75. ## judicial system

Explain how a defendant may be processed through The Missouri judicial system. I have searched the internet and I can not information on this.

76. ## Health

Why is having excessive abdominal fat a serious concern? A. Because it places you at a lower risk for developing an enhanced self-image B. Because it places you at a greater risk for developing an enhanced self-image C. Because it places you at a greater

77. ## phi

“If you are born in the U.S. then you are a U.S. citizen. You were not born in the U.S. so you are not a U.S. citizen.” (Points : 1) Slippery Slope Denying the antecedent Post Hoc False Dichotomy No Fallacy

78. ## Easy Chemistry

Which of the following processes uses a galvanic cell? A. Electroplating silver metal onto a teapot B. Purification of metals such as copper from their metal ores C. Electrolysis of sodium chloride D. Operation of a portable music player

79. ## World History (Ms. Sue)

Which country do you think had a stronger democracy at the end of the nineteenth century, France or England? Why? A: I think England had a stronger democracy at the end of the nineteenth century. By 1870, England, or Great Britain, had long had a working

80. ## maths

a farmer divided his land into two for his sons ram and sham. ram divided it further for two of his sons, hari and gopal. what fraction of the total land do gopal and sham have?

81. ## planning & implementing for the environment

In acquiring equipment for a child care facility, you'll most likely A.have to purchase all of the equipment for your center. B. be able to acquire most of your equipment from free and inexpensive sources. C.purchase 90 percent of your equipment locally.

82. ## maths

a birthday cake was cut into eight pieces. one of the pieces was taken by a pair of twin sisters. what fraction of cake did each sister get?

83. ## Easy Chemistry

What is the oxidation half-reaction for Mg(s) + ZnCl2(aq) MgCl2(aq) + Zn(s)? A. Zn(s) Zn2+ + 2e- B. Zn2+ + 2e- Zn(s) C. Mg(s) Mg2+ + 2e- D. Mg2+ + 2e- Mg(s)

87. ## Chem

1N2(g) reacts with H2(g) to form NH3(g), gaseous ammonia. Show balanced thermochemical equations based on both one mole and two moles of NH3(g). Determine Ho ( for both reactions using Table 6.2 (Hof). Use the summation equations. Show your

88. ## French

What are some phrases a teacher can use to introduce himself/herself in French?

89. ## Chemistry

The following galvanic cell at standard conditions has a potential of 0.03 V: Ag+(aq) + Fe2+(aq) → Fe3+(aq) + Ag(s). What would be the effect of increasing the concentration of Ag+? A. The cell potential will decrease. B. The cell potential will

90. ## physics

Curve A is banked at 11.2 °, and curve B is banked at an angle of 15.2 °. A car can travel around curve A without relying on friction at a speed of 14.5 m/s. At what speed can this car travel around curve B without relying on friction? Do I need to find

91. ## math

As a part of a unit on weather students recorded the outroor temperature at 8:30 AM what was the difference between the weeks highest and lowest morning temperatures

92. ## physics

A centrifugal pump pumps 100 lbs/hr of water 100 ft high to the top nozzle of a distillation column. The pump impeller is 3 ft diameter?

93. ## English

In this sentence People have been telling themselves the story of Snow White for centuries. Is themselves reflexive or intensive. I am thinking intensive because you do not need it for the sentence to make sense?

94. ## Physics 30

A 6.8 g bullet travelling at 395m/s goes through a stationary block of wood in 4.3 *10^-4 and emerges at 102 m/s. what average force did the wood exert on the bullet ? how thick is the wood?

95. ## Physics

A 70 kg woman pushes on a wall at 35 newtons and recoils. What is the magnitude of the force?

96. ## Calculus

Suppose that water is pouring into a swimming pool in the shape of a right circular cylinder at a constant rate of 3 cubic feet per minute. If the pool has radius 6 feet and height 10 feet, what is the rate of change of the height of the water in the pool

97. ## Calculus

A potter forms a piece of clay into a right circular cylinder. As she rolls it, the height h of the cylinder increases and the radius r decreases. Assume that no clay is lost in the process. Suppose the height of the cylinder is increasing by 0.4

98. ## World History (Ms. Sue)

What does Pankhurst mean when she says a representative government exists for men in Great Britain, while women live under a despotic government? A: Pankhurst means that men have a representative government because they are represented by the government

99. ## math

Find the critical numbers for f=5+10x-x^{2} in the interval [-3,3].Also find the minimum and maximum.

100. ## Calculus

18) Find all numbers c that satisfy the conclusion of the Mean Value Theorem for the following function and interval. Enter the values in increasing order and enter N in any blanks you don't need to use. f(x)=2x/6x+12,[1,4]

101. ## Calculus

f(x)=4x3−18x2−480x−2 is decreasing on what interval? It is increasing on what interval(s) ? The function has a local maximum at ?

102. ## Calculus

7) Consider the function f(x)=x2e4x. For this function there are three important intervals: (−∞,A], [A,B], and [B,∞) where A and B are the critical numbers. Find A and B For each of the following intervals, tell whether f(x) is increasing (type in

103. ## MATHS

6M(2)+31M+33M=0

104. ## calculus

9) Find all critical numbers of the function f(t)=9t^2/3+t^5/3

105. ## Calculus

Consider the function f(x)=ln(x)/x^6. For this function there are two important intervals: (A,B] and [B,∞) where A and B are critical numbers or numbers where the function is undefined. Find A Find B For each of the following intervals, tell whether f(x)

106. ## Calculus

Find the critical numbers of the function f(x)=x^1/6−x^−5/6.

107. ## Math

Mandy got 22 questions correct on her test. Her grade was 80%. How many questions were on the test.

108. ## Chemistry

What mass KCl is needed to precipitate AgCl from 15.0 mL of .200 M AgNO3

109. ## algebra--1 question!??

2t + 8 'greater than/equal to' -4(t+1) t is 'greater than/equal to' ?_____? i have an idea as to what the answer is but im pretty sure its wrong can someone pls help me? thx

110. ## World History (Ms. Sue)

"Behind the purdah in India, in the harems of Mohammedanism, behind veils and barred doors and closed sedan chairs, there has been rebellion in the hearts of women all down the centuries....We spoke with many women all over the East who had never heard of

111. ## Chemistry

The following galvanic cell at standard conditions has a potential of 0.03 V: Ag+(aq) + Fe2+(aq) → Fe3+(aq) + Ag(s). What would be the effect of increasing the concentration of Ag+? A. The cell potential will decrease. B. The cell potential will

112. ## Statistics

Find the probability of winning the lottery Select the six winning numbers from 1 to 34. (in any order, no repeats) P(winning)= ?

113. ## Eng

I'm doing project on What are Media racism on Islam & Muslim? Networks etc.and resources where can I can find it Thank you!

114. ## Math

If z^2 = x^2 + y^2 with z>0, dx/dt=3, and dy/dt=6, find dz/dt when x=4 and y=3. Answer: \displaystyle \frac{dz}{dt} =

115. ## chemistry

How many aluminum atoms are in 3.78 g\rm g of aluminum?

116. ## PS.225 SCIENCE

NARRATIVE DNA

117. ## Chemistry

Po-210 Ia an alpha emitter with a half-life of 138 days. how many grams of Po-210 remain after 552 days if the sample initially contained 5.80g of Po-210?

118. ## Chem

Suppose that you start with 1000000 atoms of a particular radioactive isotope. how many half-lives woruld be required to reduce the number of undecayed atoms to fewer than 1000?

119. ## geometry

QRST is a trapezoid. If angle S is equal to 23 degrees, what is the measure of angle T

120. ## Math

There are 36 members of a sculpture class. 12 of the class members are men. What is the ratio of women to men in the class? Be sure to write your ratio in simplest form.

121. ## Math

Javier scored 30 goals in 15 soccer games. Using the unit rate, how many goals will he score in 20 games?

122. ## planning & implementing for the environment

Purchasing equipment that has multiple uses can A. be more accessible to the children. B.make less work for staff. C.cut costs and encourage creative play. D.be easier to find. C

123. ## Physical Science

The sand on the beach heats up faster each day than the water does. You know this because when you walk on the beach in the early morning, your feet are cool. By noon, the beach is so hot, you cannot walk on it in bare feet . The ocean, however stays cool.

124. ## Physics

In a constant-pressure calorimeter, 75.0 mL of 0.810 M H2SO4 was added to 75.0 mL of 0.390 M NaOH. The reaction caused the temperature of the solution to rise from 22.68 °C to 25.34 °C. If the solution has the same density and specific heat as water,

125. ## science

why is all Florida at risk for damage from hurricane winds?

126. ## Physical Science

A piece of aluminum, mass 40 kg. C= 0.2 kilocalories/kg.(degrees), change in temperature =20degrees, find Q, in kilocalories.

127. ## World History (Ms. Sue)

What are the changes that resulted from the Second Industrial Revolution?

128. ## math

what is the expanded form for 408,032,009

129. ## planning & implementing for the environment

The Environmental Rating Scales developed by the FPG Child Development Institute based at the University of North Carolina should be A. considered when planning an environment for young children. B.adhered to only in an infant setting. C.used to weigh the

130. ## statistics

Potatoes - Samples: Assume the weights of Farmer Carl's potatoes are normally distributed with a mean of 8.0 ounces and a standard deviation of 1.3 ounces. He bags his potatoes in groups of 6. You buy a bag and the total weight is 42 ounces. Here we

131. ## social studies

for a valley forge acrostic poem what do i do for L

132. ## statistics

The bass in Clear Lake have weights that are normally distributed with a mean of 1.9 pounds and a standard deviation of 0.8 pounds. (a) If you catch 3 random bass from Clear Lake, find the probability that the mean weight is less than 1.0 pound. Round your

133. ## Physical Science

A long distance swimmer, who is very cold, m=100 kg., 1000 kilocalories are supplied to warm them up. The specific heat for a human is 0.83. A) What will be the temperature change? B) If the original temperature is 85 degrees, find the final temperature.

134. ## Math

You have 10 yards of fabric. One pillow case requires 1 1/4 yards of fabric. How many pillow cases can you make?

135. ## statistics

Assume heights and weights are normally distributed with the given means and standard deviations from the table below. Strata Mean Standard Deviation Mean Standard Deviation Height Height Weight Weight (inches) (inches) (pounds) (pounds) U.S. Men 69.3 2.8

136. ## statistics

Use the z-table to find the requested probabilities. Enter your answers to 4 decimal places. (a) P(z < −1.02) = Incorrect: Your answer is incorrect. (b) P(z ≥ 2.43) = (c) P(−1.80 < z < 1.36) =

137. ## English

I hope someone knows how to write a gerrc paragraph.. Anyways I need help for the reference part. Hence the word R, how do i show my point? I can explain the quote but I don't know the point. The general statement is, the author used a variety of humor to

138. ## Chemistry

How would the empirical formula of copper (II) sulfate be affected if some of the sample sticks to the stirring rod?

139. ## chemistry

The heat of solution of ammonium nitrate is 26.2 kJ/mol, and a 7.315 g sample of NH4NO3 is added to 40.0 mL of water in a constant pressure calorimeter initially at 25.2°C, what is the final temperature reached by the solution? (The specific heat of water

140. ## Physics

The power output of an elevator is 15000 W. How many persons could it carry if it raises passenger to a height of 35 m in 20 s ( each person has an average mass of 60 kg)?

141. ## planning & implementing for the environment

Suppose that, in your opinion, children need a highly structured environment in which the teacher guides the children and free selection of activities is kept to a minimum. Which programphilosophy would you most likely adopt?   A. Montessori B.

142. ## science

what does nuclear energy mean and can you give me a example of what it is?

143. ## Math

How to figure interst of 2.9 percent for 9 months to end up with 3262.50.

144. ## Chemistry

An aqueous solution of ammonium nitrite decomposes when heated to give off nitrogen gas and water. This reaction can be used to prepare pure nitrogen gas. How many grams of ammonium nitrite must have reacted if 3.75 liters of nitrogen gas was collected

145. ## Physics

A crate is pulled by a rope making 30 degrees with the horizontal. If the work done to move it in 15 m is 2000 J, find the tension in the rope.

146. ## science-chemistry

An aqueous solution of ammonium nitrite decomposes when heated to give off nitogen gas and water. This reaction can be used to prepare pure nitrogen gas. How many grams of ammonium nitrite must have reacted if 3.75 liters of nitrogen gas was colleced over

147. ## Chemistry

An aqueous solution of ammonium nitrite decomposes when heated to give off nitogen gas and water. This reaction can be used to prepare pure nitrogen gas. How many grams of ammonium nitrite must have reacted if 3.75 liters of nitrogen gas was colleced over

148. ## jh

why do you help children?

149. ## math

Bria and her friends are 3/4 of the pizza. Her sister ate 2/3 of what was left. how much did her sister eat?

150. ## planning & implementing for the environment

Which of these factors is most likely to determine the total number of children you can take into your facility? A. Children's needs B.Physical space available C.program philosophy D.staff members skills B.

151. ## World History

Explain three impacts of the Black Death on the population of European and its’ trade routes. I need some info/examples on the "Black Death"

152. ## planning & implementing for the environment

Preventive maintenance means A. hiring experienced staff to operate and maintain equipment.B. regularly inspecting and repairing or replacing equipment.C. developing rules to prevent children from damaging equipment.D. purchasing equipment that will

153. ## math

A hotel has rooms numbered 1 to 1000. One thousand visitors enter the hotel. 1. The first visitor switches on the light switches of every room. 2. The second visitor switches off the light switches of every other room, starting with room 2. 3. The third

154. ## World History (Ms. Sue)

Identify changes that resulted from the Second Industrial Revolution, and then briefly summarize them in a chart, list, or paragraph. These aren't all of my changes that I've identified. I just wanted to know whether I'm correct with the changes that I've

155. ## algebra 1

If the graph of a line has a positive slope and a negative y-intercept, what happens to the x-intercept if the slope and y-intercept are doubled? A) The x-intercept becomes 4 times larger B) The x-intercept becomes twice as large C) The x-intercept becomes

156. ## chemistry

What is the difference between a galvanic cell and an electrolytic cell? A. A galvanic cell converts reduction reactions into an electrolytic cell, and an electrolytic cell converts oxidation reactions into a galvanic cell. B. A galvanic cell converts

157. ## Math

At Bob's binders, a set of 3 notebooks costs $4.20. At Pam's Paper Place a set of 4 notebooks costs$5.20. What is the unit price of the notebooks at each store? Which is the better buy?

158. ## government

What is the impeachment power of the House?

159. ## physics

A block of mass m is pushed along a horizontal table by a force f=70 N at an angle 55 degrees with the horizontal. Yhe coefficient of kinetic friction is 0.3 Find the normal force. My work: I know that there is 3 forces present: force of gravity, normal

167. ## algebra 1

If the graph of a line has a positive slope and a negative y-intercept, what happens to the x-intercept if the slope and y-intercept are doubled? A) The x-intercept becomes 4 times larger B) The x-intercept becomes twice as large C) The x-intercept becomes

168. ## government

How doe Congress protect the rights of authors and inventors?

169. ## geometry

Find the dimensions of a rectangle if the area is 1500 ft to the 2nd power

170. ## World History (Ms. Sue)

How are a constitutional monarchy and a republic similar? How do they differ? A: A constitutional monarchy and a republic are similar as they have constitutions. However, these two differ because a constitutional monarchy controls head of state, while a

171. ## Physics

A car drives straight down toward the bottom of a valley and up the other side on a road whose bottom has a radius of curvature of 110m . At the very bottom, the normal force on the driver is twice his weight. At what speed was the car traveling?

172. ## chemistry

Why are half-reactions used in redox reactions? A. They make it easier to keep track of spectator ions in the reaction. B. They make it easier to see the oxidation and reduction parts of the reaction separately. C. They make it possible to neglect the

173. ## World History (Ms. Sue)

Which earlier civilizations practiced direct democracy? A: The ancient Athens practiced direct democracy.

258. ## chemistry

A flask that can withstand an internal pressure of 2511 torr, but no more, is filled with a gas at 21.0°C and 758 torr and heated. At what temperature will it burst? i used P1/x=P2/T2 and got 69.6 degrees Celsius. what is wrong

259. ## Pre-Calc

You are taking a road trip in a car without A/C. The temperture in the car is 93 degrees F. You buy a cold pop at a gas station. Its initial temperature is 45 degrees F. The pop's temperature reaches 60 degrees F after 23 minutes. Given that \frac{T-A}{T_0

260. ## Economics

Suppose that you are a bicycle producer. In 2 or 3 sentences, explain why you are willing to supply the most bicycles at the highest price

261. ## math

HELP HELP PLEASE The University of Townville gives a full scholarship to any student who scores in the top 4% of students on the SMRT standardized exam. SMRT scores have a mean of 260 and a standard deviation of 22. What score does a student need to attain

262. ## S.S.

I am having trouble with question 16 16. The main impact of the invention of the cotton gin in 1793 was on A. the ability to process long-staple cotton. B. the ability to process short-staple cotton. C. cotton production in the Upper South. D. the cost of

263. ## Math

Which algebretic equation correct represents this sentence? 25 is three times a number decreased by 8. A. 25 = 3w - 8 ? B. 3 = 25w - 8 ? C. 3 = 25w + 8 ? D. 25 =3(w + 8) ? a little confused lol.. help? Thanks Everyone So Much

264. ## physics

what is the work with a force of 19.3 N and a displacement 7 m and an angle of 80.0

265. ## algebra

One integer is 3 less than 4 times another. Their product is 27. Find the integers.

266. ## guidance

In which of the following situations do you, as a caregiver, act as a role model for prosocial behavior? A. You create a corner in which musical instruments can be played.B. You ask Maria to feed the gerbil.C. You remind Joshua to hang up his coat.D. You

267. ## Physics

Suppose the surface (radius = r) of a cylindrical space station is rotating at 29.1 m/s to provide artificial gravity. What must be the value of r for the astronauts to weigh 1/3 of their earth weight? Don't know how to start please help.