1. STAT

Determine the mean and standard deviation of the random variable for which the probability mass function is defined as follows: P(X=x)= x-2/30 if x=3,12,21

2. calculus

What size should be the frame be? Suppose an artist has a circular picture with a diameter 6 inches which she wishes to frame by a uniform width frame with covers 1/2 inch width uniformity of the painting and has total area equal to that of the exposed

3. STAT

Airline overbooking is a common practice. Many people make reservations on several flights due to uncertain plans and then cancel at the last minute or simply fail to show up. Eagle Air is small commuter airline. Their planes hold only 25 people. Past

4. STAT

The inside diameter of a manufactured cylinder is believed to follow a normal distribution centered at 5.00 inches with standard deviation of .03 inches. The diameter of the cylinder must be within 4.95 inches (the lower specification limit) and 5.07

5. STAT

Electricalc has determined that the assembly time for a particular electrical component is normally distributed with a mean of 20 minutes and a variance of 9 minutes. a. What is the probability that an employee in the assembly division takes longer than 22

6. Math

5(x+2)/(x-2)^2-2(x+2)/(x-2)-3=0 Hint: use u= x+2/x-2 and solve for x Enter the solutions separated by commas

50. math

if it is sunday, 4:50 p.m.,what will the day and time be 20 1/2 hours later?

51. health

when was the u.s air line banned soming in 1964

52. health history

what year did minnesota pass its FIRST no smoking law

53. government

which of the following legislative bodies comes closest in its function to the japanese house of councillors

54. Linear Algebra

Suppose that in a certain basis B = (x,y,z), vector u is: u = 2x+3y-z. Find a unit vector with the same direction as u. Thank you

55. american history

Which of the following distinguished the Middle Colonies from New England and the Southern Colonies?

56. physics

A pulley system reduces the effort of lifting a big bucket of water from a shallow well. The 100-newton bucket is lifted to a height of 5 meters with an unknown input force. If 50 meters of rope is pulled to lift the bucket the desired height and the

84. Biology

Another brain teaser I can't get: What are Mr. Rahn's favorite states" Hint: "it matters"

85. physics

a person 0f mass m = 60 kg walks along the radius from the periphery to the center of a circular platform of moment of inertia= 200kgm square and radius r = 3m. the disk is a rotating frictionless with angular velocity= 0.3 rad\s.find the angular velocity

86. Math

The mean attendance at a ball game was 120. The median attendance was125.what was the total attendance if the team played 20 times?

87. PHYSICS

a uniform stick weighing 50Newton is suspended from the ceiling while the other end of it rests on the floor and making an angle 60degree along with horizontal. the string makes a 15 degree angle with the vertical. find the minimum value of the coefficient

88. algerba

x+(5+y)=(x+5)+y what property is illustrated by the equation?

93. english 11

Supermodel Tyra Banks uses Smooth & Soft bath gel; you should, too!

94. Chemistry

Ethane, C2H6, has a molar heat of vaporization of 15kJ/mole. How many kilojoules or energy are required to vaporize 5 g of ethane?

95. Chemistry

What volume (in liters) is occupied by 0.01 moles of carbon monoxide, CO at 9 degrees C and 0.973 atm?

96. Symmetry

For these functions, determine which ones are NEITHER even nor odd. A) f(x)=3x^2+|x| B) f(x)= 3x^3+x^2+x-4 C) f(x)= 1/2x D) f(x)= 2x^5-x^3+2x E) f(x)= 4x+1/x F) F(x)= 2x^4+x^2-x+2 Enter the letter of each function separated with a comma. How can you tell

97. volume of square

Find the volume of a square with base edges of 24cm and a slant height of 37cm possible choices 192cm^3 (my choice) 20,160cm^3 10,080cm^3

98. Chemistry

Complete each ionic equation Cu+2 + SO4-2 + 4H2O ---->

99. Geometry

Find the radius of a cone if the total area = 12 pi and lateral area = 8 pi.

100. physics

the magnitude of earths magnetic field at the magnetic north pole is 61/1000000.(a) determine the magnitude of the dipole moment of the earth (b)suppose an additional field due to the current in wire around the equator is used to make the net field at the

101. GED-Word Problems

It is estimated that 34% of the new trees planted each year are lost in the dry summer. If a farmer planted 37,000 pines, how many could she expect to lose?

102. geometry

How do I solve for X 2 + 3 = 4 x-1 x+1

103. Chemistry

What is the molarity of a solution prepared by dissolving 4.92 g of calicum nitrate in 250 mL of water?

104. Chemistry

Determine the identity of an unknown solution that formed a yellow precipitate with solution 1, No Reaction with solution 2, No Reaction with solution 3, and a canary yellow solution with solution 4?

105. calculus

Verify the Identity: (Tanx + 1)/(secx + cscx) = sinx

A string has a linear density of 5.3 x 10-3 kg/m and is under a tension of 370 N. The string is 1.8 m long, is fixed at both ends, and is vibrating in the standing wave pattern shown in the drawing. Determine the (a) speed, (b) wavelength, and (c)

One method for measuring the speed of sound uses standing waves. A cylindrical tube is open at both ends, and one end admits sound from a tuning fork. A movable plunger is inserted into the other end at a distance L from the end of the tube where the

Change each of these indirect quotations to direct quotations.Punctuate your quotation properly. examples: - Mrs king said,"I enjoyed our golf game" _Mrs king said that she enjoyed the golf game. 1)Mrs.King said that she wants a new putter. -Mrs King

109. chemistry

Most community water supplies have 0.50 ppm of chlorine added for purification. What mass of chlorine must be added to 129.0 L of water to achieve this level?

110. algebra

a can of soda at 80 F is placed in a refrigerator that maintains a constant temperature of 37 F the temperature T of the soda t minutes after it is placed in the refrigerator is given by T(t)=37+43e^-0.058t find temp to the nearest degree of the soda after

111. Drugs n Dosages

Dr. Bartles has written an order for 375 mg of Amoxil for his patient, Jonathan Becker. The medication is to be given every 8 hours. Troubled Terry used the formula method to calculate the amount to administer in teaspoons. Here is his work: D = 375 Q = 5

112. History

Material prosperity had an enormous impact on American society after WWII. What was it like for a suburban middle class husband and father after this time? What were some positive aspects to the postwar suburban life? What were some cultural problems

113. algebra

2x+8y-8z-22 x+2y-2z=3 5x+7y+z=-13 solve by gaussian elimination

114. chemistry

What is the molarity of each kind of ion in a solution of magnesium chloride that contains 86.0 g of magnesium chloride dissolved in enough water to make 2.37 L of solution? M Mg2+ M Cl-

115. Algebra

Which of the following equations containing grouping symbols is correct? A. (6 + 9) − 1 + (4 ÷ 1) = 12 B. 9 + (12 ÷ 4) = 1 C. 24 ÷ (8 + 4) + (16 ÷ 2) = 10 D. (3 − 1) − 2 − (8 − 5) = 12 − 9

116. math

Name the point of intersection for the following system, if it exists. 4x – 3y = -3 3x – y = -6

117. math

Solve using elimination method -7x+5y=-56;-21x-2y=-168

118. Psychology Statistics

What raw score marks the cut off score for the children in the 30th percentile (in the bottome 30%) in need of special assistance prior to attending school? Mean is 30.9, SD = 2.08, N= 20

119. economics

4. Engineers for the Off Road Skateboard Company have determined that a 10% increase in all inputs will cause output to increase by 5%. Assuming that input prices remain constant, you correctly deduce that such a change will cause ________ as output

120. english

Ralph,who is a student,also has a part-time job. 1)What is the independent clause in this sentence? also has a part-time 2)What kind of dependent clause is( who is a student) in this sentence? Is it a noun, adjective,or adverb clause? -a noun

121. Abscess - Skin Disease

What is the cause, epidemology, pathosyscoilogy?, and history of abscess?

122. science

how might a blockage of the lymph vessels affect the function of the cardivascular system?

123. physics

sally and roy both leave school at the same time.roy runs as fast as he can,and sally walks slowly in the same direction. explain how their position-time graphs would look different.be detailed and use full sentences

124. science

A 20 N object displaces 2,000 mL of water. What is the buoyancy? Hint: 1 mL of water = 1 cm3 of water = 1 g of water (Remember to convert g to kg) Will it float? (yes/no)

125. Algebra

Write an equation in standard form (slope-intecept form) of the line passing through the pair of points (3,4) and (5,8) containing point (5,9) and parallel to the line.

126. Confidentiality of Health Information

Compare and contrast contributory negligence with comparative negligence?

127. physics

al drives his car at a constant velocity of 60 mph.bob start at rest at a stoplight, then pushes the gas pedal, slowly speeding up until he reaches a velocity of 60mph.explain how their position time graphs will look different

128. Algebra

How do I set up and solve this problem? 100% acid is to be added to 10% acid solution to obtain 90 liters of 48% solution. (a) What amount of 100% of acid should be used? (b) What amount of 10%?

129. maTH

1. You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability that you select a vowel. Write your answer as a fraction in simplest form. (1 point) 2. Suppose you spin the spinner once.

130. English

Ice cream/Melts because of hot temperature dripping down In a cone How can i write this in a poem?

131. Confidentiality of Health Information

If HIPAA rules are stricter than state law, which standard should you follow and why? What if the state law was stricter?

132. English

What is the best replacement for "seems to be of importance"? Seems important or Seems of importance?

133. algebra

Anita and Maria went to the candy store. Maria bought 5 pieces of fudge and 3 pieces of bubble gum for a total of $5.70. Anita bought 2 pieces of fudge and 10 pieces of bubble gum for a total of$3.60. Determine the cost of 1 piece of bubble gum.

134. math

round 237900 to one,two and three significant figures

135. English

Name an object, person, place, or action that you could use to symbolize each of the following. Remember a symbol and the thing it is symbolizing must have elements in common. 1-freedom 2-a difficult experience 3-a disappointment 4-telling a lie 5-an

136. math

Anita and Maria went to the candy store. Maria bought 5 pieces of fudge and 3 pieces of bubble gum for a total of $5.70. Anita bought 2 pieces of fudge and 10 pieces of bubble gum for a total of$3.60. Determine the cost of 1 piece of bubble gum.

137. Science

Really need help with my science homework Name and briefly define each of the three energy roles organisms can play in an ecosystem. Thank You

138. math urgent

1. You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability that you select a vowel. Write your answer as a fraction in simplest form. (1 point) 2. Suppose you spin the spinner once.

139. Art

Sorry, I didn't notice you had checked my previous post. I still have a few doubts. Thank you. 1)He excuses himself by saying that on that occasion he didn't want to do her any harm. (Is "excuse" acceptable in this sentence?) 2) The plot is very simple and

140. Chemistry

What is the molarity of a sodium hydroxide solution if 38 mL of the solution is titrated to the end point with 14 mL of 0.75M sulfuric acid?

141. vance high school

how i can used specialization in a sentences?

142. math

how are a trapezoid and a traingle alike

143. Math

Danny's Dinner made $175.00 on Monday,$220.00 on Tuesday and $375.00 on Wednesday.Danny's goal is to make$1,000.00 by Friday.How much money will Danny have to make during the rest of the week to meet his goal? 230.00

144. Physics

Does a generator act as a source or a load? thanks!

145. math

how is a triangle and a trapezoid alike

146. Math

Danny started making food early for the lunch crowd.He chopped vegetables for 25 minutes and made salads for 20 minutes.He cooked soup and made the daily special for 50 minutes.Then he baked a cake and two pies.This took 1 hr and 5 minutes.If Danny stopped

147. trigonometry

solve the equation: 4 tan^2 x + 12 sec x +1 =0, for 0 degrees is less than or equal to x is less than or equal to 360 degrees.

148. Math

Using a pair of compasses, a ruler and a pencil. Construct a triangle CDE in which DE =10Cm Dc=8cm and< CDE=45 dregrees. Contract a line, CF, perpendicular to DE such that F lies on DE. Using a protractor, measure and state the size of angle < DCE.

149. trigonometry

Given that tan A = 2 tan B (B is the symbol for Beta) show that tan (A-B) = sin 2B/3- cos2 Beta.

150. Chemistry

What is the molarity of a sodium hydroxide solution if 38 mL of the solution is titrated to the end point with 14 mL of 0.75M sulfuric acid?

151. Math

Wanda the waitress took a break at 3 PM.Before that she waited for 2 1/2 hrs. She also helped Danny make salads for 40 minutes.If it takes Wanda 35 minutes to travel from her house to Danny's Diner,what time did she leave her house to come to work? 11:15?

152. math

how are triangles and trapziods alike

153. English

Some say love, it is a river that drowns the tender reed. What do you think this means?

154. History

What is the date in which the Declaration of Independence was declared? July 4,1776?

Amanda's grandmother made a quilt for Amanda's bed. The quilt was made of 9 squares. Each square was 2 feet wide. How wide was Amanda's quilt?

156. Chemistry

1.)Find the PH of a solution with 0.20M NH3 with 0.15M of NH4Cl. 2.)Find PH of a solution with a mixture of 200mL of 0.50M HCHO2 and of 100mL of .50M NaCHO2.

157. Algebra

Application problems and converting decimals is not my forte. Please help me? Dick mows the lawn in 7 hrs. Mary can do the same yard in 6 hrs. How much time would it take for them to mow the lawn together? (They are sober btw) 8.26 x 10^7 Convert to

asked by A beautiful mind. NOT
158. 3 grade english ms sue

adverbs direction make each sentence more specific by adding an adverb from the box or an adverb of yur own. write the new sentence. impressively cautiously always really outside suddenly 1- jonah practices korean martial arts in the mornings. my son

159. Algebra

Write a quadratic equation in the variable X. Write in standard form: ax^2+bx+c=0 using 3 as the only solution. Cheers!

160. physics

A charge of 3.0 nC and a charge of 5.8 nC are separated by 53.40 cm. Find the equilibrium position for a -4.7 nC charge.

161. Math

Danny ordered 124 pounds of vegetables for this week's menu.On Monday 18 pounds were used,and Tuesday's meal used 36 pounds.Twenty-six pounds were used on both Wednesday and Thursday.How many pounds does Danny have left to use on Friday? 18 pounds?

162. chem

Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 1.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?

163. Math

Wanda is filling saltshakers at tables and booths.There are 24 tables and 12 booths,each with 1 saltshaker.If Wanda has finished filling 17 saltshakers,how many more does she need to fill? 19? Danny is stacking chairs so he can mop the floor.There are 24

164. social studies

who dances around the maypole? is it people?

165. Chemistry

A 55.0-mg sample of Al(OH)3 is reacted with 0.200M HCl. How many milliters of the acid are needed to neutralize the Al(OH)3.

166. english/help me

Ralph,who is a student,also has a part-time job. 1)What is the independent clause in this sentence? who is a student,also has a part-time job. 2)What kind of dependent clause is( who is a student) in this sentence? Is it a noun, adjective,or adverb clause?

167. Science

What are 2 disadvantages and advantages of a free range or extensive system?

174. chemistry

which of the following is not a driving force for a chemical reaction?

175. math

jonathan bought 12 pencils. he gave his brother 1/2 of the pencils and gave his friend 1/4 of the pencils. how many pencils did his friend get

176. Science

Help / Research with my science fair project ? what type of music best stimulates plant growth,classical or pop music ?

177. chemistry

SrH2 + 2 H2O ==> Sr(OH)2 + 2 H2 Determine the number of grams of strontium hydroxide (Sr(OH)2) produced when 10.0 g of hydrogen gas (H2) is also produced. (Your answer must have at least 3 significant figures.)

178. english

ok in my class we are reading the book called "The Outsiders" by S.E. Hinton. On my worksheet it asked " what does red ears mean in chapter 3?" PLZ HELP ME!

179. math

Danny's Diner server 17 customers during lunch.There were twice that many customers during dinner.The number of customers in the diner at the dinner hour was 7 fewwer than the number of customers during breakfast.How many customerts were in the diner

181. english

Write if the sentence is simple, compound,or complex. 1-I'd like to help you ;however,I am very busy today. complex 2-Do you know what Willie said.simple 3-I think that I've seen that movie before.simple 4-The person in the middle of the line is my brother

182. Algebra

Andrew measures the amount of a very unstable substance to be 100 moles. The half-life of this substance is 3 days (after 3 days, half is gone). Write an exponential function that models this situation where y is the amount of substance and x is time in

183. Math /Algebra

Equation: y=mx+b If m= slope b= y-intercept what is x and y??? I doubt I worded this in a way that makes sense but I need help.

184. English

If anyone has read/heard about the books "The Namesake by Jhumpa Lahiri" and "The Writing on my Forehead by Nafisa Haji", can you please help me come up with a nice comparative thesis? A topic/theme I have for both is identity. But can't think of good

185. Music

I need help. I have to pick a song to sing and it has to match with my voice. So far I narrowed it down to Cheatercheaterbestfriendeater by NevershoutNever, My Everything by My Genuine Find, Your Biggest Fan by NeverShoutNever, and Always You by My Genuine

186. Sociology

By a narrow margin, Dr. Moreau was elected chair of the largest academic department at Faber College. She appointed faculty members who support her views to the most influential and important committees in the department. This group of loyal colleagues, on

187. Algebra

You are a contestant on a game show and have the chance to win a car by rolling 5 dice. Each die has three sides that say CAR and three sides that are blank. In order for you to win the car you CAR on all five dice. You have three chanat ces to roll the

188. world history

What would be a probable explanation for why there are many endemic plants and birds in new Zealand, but no native mammals? A. They were driven away by non-native mammals. B. plants and birds would make ocean crossings to isolated new Zealand islands,

189. define

sunbeams(d now how 2 expalin flapjacks(d now how 2 explain accomplish(dont know how to explain planks(dont know hymns(dont know

190. chemistry

Calculate ΔG for this reaction under the following conditions (assume an uncertainty of ±1 in all quantities). Assume that ΔH° and ΔS° do not depend on temperature.

191. algebra

evaluate z+y/9 for z=74 and y=16

192. Math

Danmy baked a chocolate cake for dessert.The cake was cut into slices.Eight diners ordered cake for dessert at lunch.Half that many came during the afternoon and ordered a slice.Danny and Wanda each had a slice for a snack.If 4 slices were left at the end

193. Math

Customer Cal is one of Danny's regulars.He ate at the diner on Wednesday.He ordered the daily specialy,macaroni and cheese, for $2.95.He also ordered a milk shake that cost$1.25 and a piece of pie that cost $.95. Cal left the diner with$18.53 in his

194. English

Place a comma where necessary and a semicolon where necessary. 1) I will not buy that that carp it is far too expensive. 2) He still cannot use Word consequently, Tara must stay here. 3) I noticed the baker, Ian, jogging in the park every day but he never

195. Geometry

The volume of a cylinder is 250pie cm^3 and the height is 10 cm. Find the circulference of the base to the nearest hundredth of a centimeter.

196. geometry

An ice cream server fills a cone, which is 15.7 cm high and 7.2 cm across, with ice cream. She then tops the cone with a nicely rounded half-scoop. On top of this she puts the second scoop. To the nearest cubic centimeter, how much ice cream did you

197. Algebra

x^2 + 14x - 4 = 0 Solve please?

198. science

Suppose you drop a ball into the ocean in a place where there is no current. Will waves move the ball quickly away, or will it bob in place? Explain.

199. Algebra

Dick mows the lawn in 7 hrs. Mary can do the same yard in 6 hrs. How much time would it take for them to mow the lawn together?

200. Math

At one store a pair of jeans costs $29 and a shirt cost$25. At a different store the same kind of jeans costs $26 and the same kind of shirt costs$20. The answer is 29j-26j+25s-20s=3j+5s. What is the question?

201. math

how do you find the area under a curve

202. CEMISTRY

Consider a weak acid HX. If a 0.10 M solution of HX has a pH of 5.87 at 25°C, what is ΔG° for the acid's dissociation reaction at 25°C?

203. English (Poetry)

"Epigram on Milton" by John Dryden Three Poets, in three distant Ages born, Greece, Italy, and England did adorn. The First in loftiness of thought surpassed; The Next in Majesty; in both the Last. The force of Nature could no farther go: To make a third

204. English

i need help with poem "Is my team plowing, That I was used to drive And hear the harness jingle When I was man alive?" Ay, the horses trample, The harness jingles now; No change though you lie under The land you used to plow. "Is football playing Along the

205. surface and volume

A glass vase weighs 0.12lb, how much does a similarly shaped vase of the same glass weigh if each dimension is 6 times as large? possible answers; 4.32lbs 25.92lbs 0.72lbs 155.52lbs These are the last problems I have and I can't figure them out can someone

206. physics

The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. speed of boat when leaves ramp (assume that engine

207. Chemistry

Pure water is added to 25.0 mL of a 1.00 M HCL solution. The new solution has a volume of 2.00 L. What is the pH of the new solution.

208. physics 2

sorry here is actual question: A 285-kg stunt boat is driven on the surface of a lake at a constant speed of 13.5 m/s toward a ramp, which is angled at 28.5° above the horizontal. The coefficient of friction between the boat bottom and the ramp's surface

209. physics

The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. at what rate does mechanical energy turn into

210. Physics

3. A 5.0 µC point charge is moved within an electric field and has an electric potential energy change of 10.0 J. What is the electric potential difference before and after the charge was moved?)

211. Algebra 2

A baseball player swings and hits a pop fly straight up in the air to the catcher. The height of the baseball in meters t seconds after it is hit is given by a quadratic function h(t) = −5t^2 + 10t + 1. What is the maximum height of the baseball?

212. physics

A charge of +2.4 × 10−9 C is placed at the origin, and another charge of +4.2 × 10−9 C is placed at x = 2.5 m. Find the point (coordinate) between these two charges where a charge of +3.1 × 10−9 C should be placed so that the net electric force on

213. math

what is a shape called with 1 small top,1 big bottom,and when the sides go up it gets smaller and when it goes down it gets bigger.

214. physics

The cable of a 1800-kg elevator has broken, and the elevator is moving downward at a steady speed of 1.6 m/s. A safety braking system that works on friction prevents the downward speed from increasing. a. at what rate does mechanical energy turn into

215. math

Charlene is filling a box planter with soil.Each bag of soil contains enough to fill 500 cubic inches.If the base of the box planter is a 9-inch square and the sides are 18 inches tall,how many bags of soil will Charlene need?

216. math

How to find the volume of a new box when doing prisms and pyramids

217. Physics

A diving board oscillates with simple harmonic motion of frequency 4.6 cycles per second. What is the maximum amplitude with which the end of the board can oscillate in order that a pebble placed there does not lose contact with the board during the

218. Physics

You stand on a bathroom scale that rests on the floor of an elevator. Standing on the scale compresses internal springs and activates a dial that indicates your weight in newtons. When the elevator is at rest, the scale reads 600 N. Then the elevator

219. Physics

A baseball is hit with a horizontal speed of 22 m/s and a vertical speed of 14 m/s upward. What are these speeds 1 s later?

220. Physics

Two identical balls roll off the edge of a horizontal table top. One leaves traveling at twice the speed of the other. Which ball hits the floor first? Why?

221. Physics

A ball is rolled off the flat roof of a 15-storey building that is 45 m above a playground. When will the ball strike the ground if you can ignore air resistance? If you believe that there is not enough information given, explain what is needed.

An estimate of the time required to perform a certain job is needed. The study yielded a mean of 6.4 minutes and a standard deviation of 2.1 minutes. The desired confidence is 0.95. How many observations will be needed if the desired maximum error is: a.

A time study of operations yielded the following observed times for one element of the job; the analyst gave a performance rating of 1.13. Using an allowance of 20%, determine the appropriate standard time for this operation. Observations Time, x 1 1.12 2

224. Physics (Spring force constant)

Please help me i cant figure out what goes in the blanks and this is the last question of my gizmo... THANKS! If the spring constant is 100 N/m, the period is equal to the _____________ _____________ of the mass multiplied by _____________. If the mass is

225. english

this summer I will be going to a theme park with my best friend will go too. It will be fun. Because I like when I get to go with friends. I've never been to this theme park before I heard it is very fun. Someone in my class. ITold me that there is a

The manager of Alco wants to establish the proportion of time that the stock clerks spend making price changes on previously marked merchandise. The manager wants a 98% confidence that the resulting estimate will be within 5% of the true value. What sample

227. Geometry

Find the radius of a cone if the total area = 12 pi and lateral area = 8 pi.

228. calculus

find to the nearest integer the value of C that satisfies (y-6)dy=(x+4)/(y-3)dx, y(-1/12)=2

229. Algebra 2

What are the x-intercepts of the circle with center (0, −2) and radius 3?

230. Calculus

the drop in blood pressure of a typical patient who is given a certain medication is given by F(x)=0.028x^2(19-x) where x is the amount of medication in cubic centimeters. What is the maximum drop in blood pressure for this patient?

231. phi103

ourarguments? Are there disadvatages to using this technique to make the structure of our arguments more explicit and clear?

232. math

1 gallon equals __ ounces

264. Physics 30

a 2000kg car traveling east at 24m/sec enters an icy (frictionless) intersection and collides with a 3600kg truck traveling south at 10 m/sec. If they become coupled together in the collision, what is their velocity immediately after impact?

265. math

-4p-10(2p-3)=22-7(1-2p)

266. Discreet MAth

Describe the graph and why it is consistent with the matrix. How many simple paths are there from vertex 1 to vertex 5? Explain.Which is the shortest of those paths? Part II: Trees Construct and describe a tree that indicates the following: A college

267. physics

A spy in a speed boat is being chased down a river by government oﬃcials in a faster craft. Just as the oﬃcials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.3 m waterfall. The spy’s speed is 15 m/s and the oﬃcials’

268. physics

A spy in a speed boat is being chased down a river by government oﬃcials in a faster craft. Just as the oﬃcials’ boat pulls up next to the spy’s boat, both boats reach the edge of a 5.3 m waterfall. The spy’s speed is 15 m/s and the oﬃcials’

269. pHI 103

imagine someone asks you what you learned in your logic classand what you found to be the most useful information you learned there?

270. PHI103

is it important for people to study logic

271. PhI 103

what kinds of mistakes might they makewithout having been exposed to a careful study of reasoning provided by logic?

272. calculus

Find the total area enclosed by the functions given below. y=x^2+2x+1 and y=2x+5 limits are -2 to 2