# Questions Asked onNovember 13, 2012

Using the numbers 5, 8, and 24, create a problem using no more than four operations (addition, subtraction, multiplication, division, square, square root, cube, cube root) where the solution will be an irrational number. Explain why the result of your

2. ## math help! 1 question!!!

On a given blueprint, 1 inch = 16 feet. If the dimensions of the bedroom on the blueprint are 0.75 inches × 1.5 inches, what are its actual measurements 16 ft × 32 ft 12 ft × 24 ft 16 ft × 24 ft 12 ft × 32 ft

3. ## math help pls

1. Evaluate 6r + 7 for r = 1.2. (1 point)0.2 7.2 13 14.2 2. Write an algebraic expression for “Julie runs three miles less than twice the number of miles, n, that Hannah runs.” (1 point)2n – 3 3n – 2 2n + 3 3n + 2 3. Solve 5s + 40 = 55 using number

4. ## chemistry

select from the following the most appropriate concentration for NaOH to titrate a sample that contains 250mg of aspirin: a. 0.01 M b. 0.10 M or c. 1.0 M and explain why you chose it.

5. ## chemistry characterization & analysis of aspirin

write a balanced equation that describes an acid base reaction that would allow you to determine the moles of aspirin present in a sample

6. ## Chemistry

So I'm not exactly sure how to answer this problem. NaC2H3O2 is soluble Express your answers as ions separated by a comma. If the compound is not soluble, enter noreaction

7. ## grammar

1. the homework for this week the homework for this week this week’s homework **** homework’s week homeworks weeks 2. the handle of the basket the basket’s handle the handle’s basket ***** the baskets handle the baskets’ handle 3. the collars

8. ## Physics

The artist Anya Calderona constructs the mobile shown in the figure.(Figure 1) In the illustrated configuration, the mobile is perfectly balanced. Assume the strings and crossbars are massless. If Anya decides to make the star twice as massive, and not

9. ## Chemistry

How many grams of calcium carbonate, CaCO3, do you need in an antacid tablet to neutralize 20 mL of stomach acid? (stomach acid is 0.1 M HCl. There are 3.65g of HCl in 1L of stomach acid or 1g of HCl in 274g of stomach acid).

Using the numbers 5, 8, and 24, create a problem using no more than four operations (addition, subtraction, multiplication, division, square, square root, cube, cube root) where the solution will be an irrational number. Explain why the result of your

11. ## Physics

An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 146 kg. The astronaut begins a space walk at rest, with a completely filled propulsion unit. During the space walk, the unit ejects

12. ## physics

Radio waves transmitted through space at 3.00¡¿10 8 m/s by the Voyager spacecraft have a wavelength of 0.120 m. What is their frequency?

13. ## physics

Storms in the South Pacific can create waves that travel all the way to the California coast, which are 12,000 km away. How long does it take them if they travel at 15.0 m/s?

14. ## physics

Wind gusts create ripples on the ocean that have a wavelength of 5.00 cm and propagate at 2.00 m/s. What is their frequency?

15. ## PHYSICS help!!!!! =)

An object is rotating with an angular momentum 4.00 kg m2/s while being acted on by a constant torque 3.00 Nm. What is the angular speed of precession of the angular velocity of the object? A.1.33 rad/s. B.0.750 rad/s. C.12.0 rad/s. D.zero. E.It depends on

16. ## physics

A freight train has a mass of 1.5 x 10^7 kg . If the locomotive can exert a constant pull of 7.5 X 10^5 N, how long does it take to increase the speed of the train from rest to 80 km /h?

17. ## U.s. history

3. The members of the Niagara Movement denounced Booker T. Washington’s advocacy of -gradual progress for African Americans. -immediate social equality for African Americans. -racial segregation of public schools. -African Americans running for national

18. ## chem

the pressure 15 meters under water is 248 kPa what is the pressure in atm what is the pressure in mmHg

19. ## chemistry

given 2CH3OH+3O2->2CO2+4H2O 1. Calculate number of grams of CH3OH required to react with 34.0L of O2 at STP. 2. How many liters of CO2 at 18 degrees Celcius and 6.94 atm are produced when 3.40 mol of CH3Oh is burned completely. 3. What volume of CO2 is

20. ## algebra

Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What is the approximate length of each side of a block?

21. ## Physics

An air puck of mass 0.23 kg is tied to a string and allowed to revolve in a circle of radius 1.0 m on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a mass of 0.9 kg is tied to it. The

22. ## Chemistry

At room temperature, the surface tension of water is 72.0 mJ·m^–2. What is the energy required to change a spherical drop of water with a diameter of 1.80 mm to three smaller spherical drops of equal size? The surface area of a sphere of radius r is

Multiple Choice 1. What was one cause of revolution in Russia? (1 point) The Russian economy was very strong. People were poor and had hard lives. Russians were content with their government. Prince Alexis died. 2. One cause of World War I was the (1

24. ## physics

Two parallel plate capacitors are identical, except that one of them is empty and the other contains a material with a dielectric constant of 4.2 in the space between the plates. The empty capacitor is connected between the terminals of an ac generator

25. ## English - Ms. Sue help

I need help with the poem "Scott's Goodbye"....it asks if the 4th stanza is slant rhyme. end rhyme. perfect rhyme. internal rhyme I think it is perfect rhyme - but I am not sure -

26. ## chemistry

assuming the reaction goes to completion, determine the final concentration of NH4Cl in the calorimeter. NH4Cl(s)+ H2O(l)-> NH4Cl(aq) concentration of NH4Cl is 1.00M its specific heat is 3.93 and density is g/ml. note: the exact same question was asked for

27. ## Chemistry

Which of these gases would you expect to have the largest van der Waals constant a? a. H2 b. HF c. F2

28. ## chemistry

0.24 grams of benzene (C6H6) is dissolved into 4.9 grams of melted biphenyl. The freezing point of the mixture was determined to be 4.4 degrees below the freezing point of pure biphenyl. Based on these results, what is the Kf of biphenyl? (Use the standard

29. ## chemistry

50ml of water at 49.6 C were mixed with 50ml of water at 25.1 C in a calorimeter also at 25.1 C. The final temperature was 30.1 C Assuming that neither the density of water nor its specific heat capacity change with temperature, calculate the total heat

30. ## Physics

The boom of a crane is 20 m long and is inclined 20ᵒ from the horizontal. A bucket of cement with a mass of 3000 kg is suspended from the upper end of the boom. What is the torque acting on the point where the boom is attached to the crane? A. 5.5 x 105

31. ## algebra

A movie theater charges $6 for an adult and$3 for a child. if the total amount was 1428 and there were 56 more children than adults - then how many children attended?

32. ## Chem

Is this reaction endothermic or exothermic? Ca(C2H3O2)2(s) = Ca2+(aq) + 2C2H3O2-(aq)

33. ## calculus

An auditorium with a flat floor has a large screen on one wall. The lower edge of the screen is 3 feet above eye level and the upper edge is 10 feet above eye level. Assume you walk away fron the screen at a rate of 3 ft/s while looking at the screen. What

34. ## calculus

A hot-air balloon is 150 feet above the ground when a motorcycle passes directly beneath it (traveling in a straight line on a horizontal road). The motorcycle is traveling at 40 mph. If the balloon is rising vertically at a rate of 10 ft/sec, what is the

35. ## economics

Answer the next three questions on the basis of the following production possibilities data for Francia and Galacia. All data are in tons. (3 marks) Francia production possibilities: A B C D E Soup 60 45 30 15 0 Nuts 0 15 30 45 60 Galacia production

36. ## Math

Jillian wants to organize her CD collection into wooden crates. Each crate holds 8 CDs. Jillian has 48 CDs. How can she use a picture to figure out how many crates she needs?

37. ## physics

While fishing, you get bored and start to swing a sinker weight around in a circle below you on a 0.50 piece of fishing line. The weight makes a complete circle every 0.40 .

38. ## trig

Olivia has a pool slide that makes an angle of 25º with the water. The top of the slide stands 4.5 feet above the surface of the water. The slide makes a straight line into the water. How long is the slide?

39. ## physics

A test charge of +2 x 10^-7 C is located 5 cm to the right of a charge of +1 x 10^-6 C and 10 cm to the left of a charge of -1x10^-6 C. The three charges lie on a straight line. Find the force on the test charge? with solution

40. ## Language arts

i need help writing a newspaper article about Johnny Tremain i really don't know how to do a newspaper article cause my language arts teacher wont tell me how to succeed on this? :( im new on connections acadamy so i really don't know. PLEASE HELP!

41. ## Physics

A person standing at the edge of a seaside cliff kicks a stone horizontally over the edge with a speed of 14.3 m/s. The cliff is 47.6 m above the water's surface. How far in meters from the base of the cliff does the stone land?

42. ## chemistry

Q#1:what would you look for in a tlc experiment to determine whether or not your sample was pure? Q#2:could you determine the extent to which your sample may be contaminated with the tlc technique?

43. ## Geometry

Find the coordinates of the circumcenter of triangle DEF D(6,0) E(0,6) F(-6,0)

44. ## physics

blocks 1 and 2 of masses 2 kg and 4kg, respectively, are connected by a light string, as shown above. These blocks are further connected to a block of mass 3kg by another light string that passes overr a pully of negligible mass and friction. Blocks 1 and

45. ## Math

Rick's car gets 29.7 miles per gallon on the highway.If his fuel tanks hold10.45 gallons,then how far can he travel on one full tank.?

46. ## precalculus

Find the focus, directrix, and focal diameter of the parabola. x2 = 5y focus (x, y) = 0, 5/4 directrix:y=-5/4 focal diameter=5 Sketch its graph? my answers seem to be correct but i cannnot sketch the graph correctly.

47. ## physics

A projectile MUST____. List all that apply. a) experience a net downward force b) have a constant speed c) be accelerating d) be changing its velocity e) be moving downward f) have a horizontal motion in addition to a vertical motion

48. ## Physics

A rotating wheel requires 8.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 8.00 s interval is 95.0 rad/s. What is the constant angular acceleration of the wheel? (Do not assume that the wheel starts at rest.)

49. ## PHYSICS!?!@@!

A 2.00-kg sphere is rotating about an axis through its center at 40.0 rev/s with the angular velocity in the +z direction. A torque 10.0 Nm acts on the sphere about the center of the sphere in the +x direction. What is the rate of change of the angular

50. ## physics

A block rests on a frictionless horizontal surface and is attached to a spring. When set into simple harmonic motion, the block oscillates back and forth with an angular frequency of 9.0 rad/s. The drawing shows the position of the block when the spring is

51. ## honors algebra

the volume V of a rectangular prism is given by V=lwh, where l is the length of the prism, w is it's width, and h is its height. The length of a certain rectangular prism is three times its width, and its height is 2 feet less than its width. write a

52. ## possessive form of nouns

Could someone check my work please? 1. the homework for this week the homework for this week this week’s homework(my choice) homework’s week homeworks weeks 2. the handle of the basket the basket’s handle the handle’s basket(my choice) the baskets

53. ## Chemistry

Stomach acid is essentially 0.10 M HCl. An active ingredient found in a number of popular antacids is CaCO3. Calculate the number of CaCO3 needed to exactly react with 250 mL of stomach acid. CaCO3(s)+ 2HCl(aq)= CO2(g)+ CaCl2(aq)+ H20(l)

54. ## physics

A 11.1-kg block rests on a horizontal table and is attached to one end of a massless, horizontal spring. By pulling horizontally on the other end of the spring, someone causes the block to accelerate uniformly and reach a speed of 3.12 m/s in 1.17 s. In

55. ## Chemistry

With the mass percent of Fe, oxalate ion, and water; find the mass percent of potassium ion in the complex iron salt difference. Fe= 11.37% H2O= 12.24% oxalate= 28.01%

56. ## 3rd math

Tessie multiplied 3x4, and then doubled it to find 6x8 .did she get the correct answer ? Explained

57. ## Chemistry

In the "Methode Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is given below. C6H12O6(aq) 2 C2H5OH(aq) + 2 CO2(g) Fermentation of 712 mL grape juice (density = 1.0 g/cm3) is allowed to take place in a

58. ## physics

What is the wavelength of an earthquake that shakes you with a frequency of 10.0 Hz and gets to another city 84.0 km away in 12.0 s?

59. ## Physics

Consider the conical pendulum, a mass on the end of a string, with the other end of the string fixed to the ceiling. Given the proper push, this pendulum can swing in a circle at an angle q of 25.5 with respect to the vertical, maintaining the same height

60. ## Chemistry

What volume of a 0.5 M solution is required to prepare 250 mL of a 0.15M solution? (Note: M = mole per Litre) Is 175ml correct?

61. ## Chemsitry

Stomach acid is essentially 0.10 M HCl. An active ingredient found in a number of popular antacids is CaCO3. Calculate the number of grams of CaCO3 needed to exactly react with 250 mL of stomach acid. CaCO3(s)+ 2HCl(aq)= CO2(g)+ CaCl2(aq)+ H20(l)

62. ## physics

A projectile MUST____. List all that apply. a) experience a net downward force b) have a constant speed c) be accelerating d) be changing its velocity e) be moving downward f) have a horizontal motion in addition to a vertical motion

87. ## chemistry

Microwaves are used to heat food in microwave ovens. The microwave radiation is absorbed by moisture in the food. This heats the water, and as the water becomes hot, so does the food. How many photons having a wavelength of 3.00 mm would have to be

88. ## Physics

car going 15 m/s is brought to a rest in a distance of 2.0 m as it strikes a pile of dirt. how much average force is exerted by the seatbelts on a 90 kg passenger as the car is stopped?

89. ## Science Help!

A light beam has a frequency of 5 x 1015 Hz. What is its wavelength?

90. ## Physics

A sled and rider, gliding over horizontal, frictionless ice at 4.9{\rm m/s} , have a combined mass of 86{\rm kg} . The sled then slides over a rough spot in the ice, slowing down to 2.1{\rm m/s} What impulse was delivered to the sled by the friction force

91. ## stats

You are a travel agent and wish to estimate, with 95% confidence, the proportion of vacationers who plan to travel outside the United States in the next 12 months. Your estimate must be accurate within 3% of the true proportion Find the minimum sample size

92. ## physics

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, it oscillates at a frequency of 14.2 Hz. When another object of mass m2 is hung on the spring along with the first object, the frequency of the motion is

93. ## Physics

A race car starts from rest on a circular track of radius 445 m. The car's speed increases at the constant rate of 0.380 m/s2. At the point where the magnitudes of the centripetal and tangential accelerations are equal, find the following. (a) the speed of

94. ## chemistry (molecular calculations)

If you had 106.35 grams of Cl, how much Na would be required to convert i all to NaCl. I worked this problem and got 41.83 grams of Na, but I'm not sure if this is correct.

95. ## Physics

Two people are talking at a distance of 3.4 m from where you are, and you measure the sound intensity as 1.0 10-7 W/m2. Another student is 4.2 m away from the talkers. What sound intensity does the other student measure? I just don't know how to start this

96. ## American history

Can someone help me go over my answers 1. If you were a reform-minded person who, above all, loathed the social problems associated with alcohol, you would have been especially sympathetic to the (A. WCTU.) B. Mugwumps. C. Comstock Law. D. evangelical

97. ## gas laws

A balloon contains 10.0g of neon gas. With T kept constant, 10.0g of argon gas is added, and the volume of the balloon expands by less than 2 times. Why?

98. ## Physics

crane lifts a 75 kg girder 8.85 m. How much work does the crane do lifting with an upward acceleration of 1.20 m/s ^2?

99. ## physics

a plane flys 350 km south along a straight path with an average velocity of 125 km/h to the south. the plane has a 30 minute layover and then travels 220 km south with an average velocity of 115 km/h to the south. what is the average velocity of the trip

100. ## Math 150

an online quiz is made of 10 multiple choice questions. each question on the quiz has choices a,b, or c. how many different ways are there to complete the quiz answering all 10 questions.

101. ## Math

What are the least and greatest numbers written in the hundredths that could round to 164.8 and explain your answer?

102. ## Physical Science Need Help Please!

A light beam has a frequency of 5 x 1015 Hz. What is its wavelength?

103. ## chemistry (molecular calculations)

If you had 78.2 grams of K, how much oxygen is needed to convert it all to K2O?

104. ## Chemistry

6. Which one of the following statements about chemical bonding is not correct? a) Ionic bonding occurs when one atom donates electrons to another. b) When atoms bond, the resulting compound is of a lower energy state than that of the combining atoms. c) A

105. ## Math

Letter 'C' on this question confuses me, please help! Holly has joined a video rental club. After paying $6 a year to join, she then has to pay only$1.25 for each new release she rents. a. Write an equation in intercept form to represent Holly’s cost

106. ## Math

during a match, pat kicks a football onto the roof of the stand. The stand and the path of the ball are at righ angles to each other. The path of the ball is given by y=2.5x-x^2÷15 The roof of the stand is given by y=x÷2+48 ÷5, where 18

107. ## physics

A 82.5-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, when stretched, behaves like a spring with a spring constant of 1.82 x 103 N/m. He accidentally slips and falls freely for 0.739 m before the rope

Two speakers, A and B, are emitting identical, synchronized (in-phase) sound waves at 240kHz. A person standing a point C hears a relatively loud sound. She then starts walking towards point D, and notices the sound gets quieter, reaching a minimum when

110. ## Math calculus

an automobile starts from rest and travel 4 miles along a straight road in 5 minutes. Use the mean value theorem

111. ## physics

The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 2.9 rev/s in 8.5 s. At this point the person doing the laundry opens the lid, and a safety switch turns oﬀ the washer. The tub slows to rest in 11.6 s.

112. ## physics

The net external force on the propeller of a 3.9 kg model airplane is 6.8 N forward. What is the acceleration of the airplane?

113. ## english

beautiful china figures Are you look for an ideal gift for a friend or loved one?Why not choose one of our beautiful china figures to give to someone special.Each figure comes on a wooden stand with a gold plaque where we will engrave your chosen message.

116. ## 5th grade math word problems

bob started each work on the hour. one day he decided to start work twenty minutes early. he started work when his digital watch had consecutive numbers. what time did he start work

117. ## chemistry

given 2C6H6+15O2->12CO2+6H2O 1. Starting with a confined volume of 4.80L and O2 with a partial pressure of 223.1 torr at 25 degrees C. C6H6 is in excess. The reaction is allowed to proceed to completion. The container is returned to 25C. Both liquid water

118. ## Physics

A ball rolls off the edge of a table that is 1.03 m high, and it strikes the floor at a point 1.40 m from the base of the the table. What is the initial speed in m/s of the ball?

119. ## finite math

three cards are randomly drawn without replacement from a standard deck of 52 cards. What is the probability of drawing an ace on the third draw?

120. ## Chemistry

How many grams are in 50.0 mL 2.0 M of HCl? Please help me!!! I think the answer is 3.57g but I am not sure. Thank you :)

121. ## physics

a 70 kg box is pulled by a rope that exerts a 400 N force at angle of 30 degrees to the horizontal the leading coefficient of kinetic friction id 0.50. draw a diagram. draw a free body diagram . find the acceleration of the box.

122. ## social studies

why did the aztec start war?

123. ## Help, Math 8th grade!!!!!

14. Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis. Please help!! I need answer now!! I have been working on this problme for over an hour cant get it, please help,

124. ## Lies

What is a synonym for ugly

125. ## ENGLISH/DEFINITION

WHAT DOES ACOOUNT OUTLIER MEAN BOI?

126. ## Math

Dorian's score of 558 on the writing portion of the 2009 SAT exam placed him in the 72nd percentile. If the mean on this exam was 493, what was the standard deviation?

127. ## english

Word bank agenda amiable befuddle blight boisterous clarity compliant conserve debut gory gross induce leeway limber maze oracle partisan reimburse vacate vagabond You certainly have a right to cheer for your team but try not to become to ___ and unruly

128. ## English

Choose the best way to correct the fragments below. If the item is a complete sentence, choose option d. A.Before we buy or tickets tomorrow. B.Before we buy our tickets, we should check the weather. C.We buy our tickets before. D.This is a complete

What is the area.in square yards of a rectangular Field that is 25 yards long and 20 yards wide.

130. ## chemistry

CH3CH2CH=CHCH3 --KMnO4-> Include all steps of reaction, any additional reagents/conditions needed and the products formed. ive been stuck on this for hours need help please

131. ## Physics

What is the orbital speed of a satellite of mass 490 kg in geostationary orbit?

132. ## physics

A staging that weighs Wstaging supports a painter weighing 170 N. The reading on the left scale is 490 N and the reading on the right scale is 220 N. 490 N 220 N What is the weight of the staging? Answer in units of N

133. ## math

a school is divided into 4 houses,P,Q,R and S.On sports day,the students line up so that a student from P is first in line,then a student from Q then a student from R then a student from S,then a student from P and so on with same order repeating.From what

134. ## physics

A soccer ball kicked with a force of 14.8 N accelerates at 6 m/s2 to the right. What is the mass of the ball?

135. ## art

1. This type of artwork can usually be found on buildings or other public property. (1 point)scraffito intaglio graffiti graphics 2. This is an example of artwork that uses the written word. (1 point)photography calligraphy intaglio scraffito 3. This is

136. ## physics

Fred the otter climbed to the top of an inclined plane. His friend, Giselle the giraffe, suggested that he was so small that gravity would ignore him and he would be unable to slide down. "On the contrary", said Fred, "Since this slope makes an angle of

137. ## Physics HELP!!

Four masses are connected by 27.1cm long, massless, rigid rods. If massA=237.0g, massB=511.0g, massC=257.0g, and massD=517.0g, what are the coordinates of the center of mass if the origin is located at mass A? ^ I already got this part: x coordinate- 13.78

138. ## Spanish Beg. 1 - help

In Spanish, dates are formed by using _________ + ___________ + __________ + __________ + . please help!!!!

139. ## Physics

An advertising firm has contacted your engineering firm to create a new advertisement for a local ice-cream stand. The owner of this stand wants to add rotating solid cones (painted to look like ice-cream cones, of course) to catch the eye of travelers.

140. ## Chemistry

To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object. What kinetic energy must the electrons have in order to resolve a protein molecule that is 5.40 nm in diameter? Take the mass of an

141. ## math

If sinx=3/5,cosy=-12/13,where x and y both lie in 2nd quad.Find the value os sin(x+y).

142. ## Physics

A robot probe drops a camera off the rim of a 105.0 m high cliff on Mars, where the free-fall acceleration is -3.70 m/s2. Find the velocity in m/s with which the camera hits the ground.

143. ## chemistry

what is the name of the 9 carbon continuos-chain alkane?

144. ## physics

How high will an object rise if it is projected upward at a 45 degree angle and an initial velocity of 50 m/s?

145. ## Gas Laws

What equation would I use to solve this problem: The volume of a balloon is 3.78 L at 22.8°C. The balloon is heated to 42.4°C. Calculate the new volume of the balloon.

146. ## Maths

Find the derivatives of these: f(x)=(√(x))sinPix Also: f(x)=√(Cosx+sinx) Steps would be greatly helpful as I will be able to use them as reference. Thank you.

147. ## english - Ms. SUe

My friend Mary is coming with us to the zoo. Identify the underlined part which is My friend Mary complete predicate complete subject simple predicate simple subject I think it is complete subject...?

148. ## Physics

a spring with a spring constant k= 1340 N/m is oriented find the rate of compression

149. ## Physics

A 96.6-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.79 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.14

150. ## Algebra

Task Type: Individual Project Deliverable Length: 3 Parts: See Assignment Details Points Possible: 150 Due Date: 11/5/2012 11:59:59 PM CT Weekly tasks or assignments (Individual or Group Projects) will be due by Monday and late submissions will be assigned

151. ## English

Word bank agenda amiable befuddle blight boisterous clarity compliant conserve debut gory gross induce leeway limber maze oracle partisan reimburse vacate vagabond Choose a word from the word bank to find a word that is most nearly or the same to the words

152. ## Chemistry

How many moles of acid are there in 20 ml of a 2.0 M HCl solution?

153. ## pre-algebra

write 16/19 in decimal notation

154. ## Math

Tell whether the data collected is continuous or discrete. Rose recycles aluminum cans each week. She records the total number of cans she recycles each week. Jackson is at a crab race. He records the distance traveled by his pet crab each minute.

155. ## chemistry

describe basic steps to take re-crystalizing synthesized aspirin. using two solvents to perform this task (ethanol and water)which solvent should be used to dissolve the aspirin and which one should force it out of the solution

156. ## physcis

A soccer ball kicked with a force of 14.8 N accelerates at 6 m/s2 to the right. What is the mass of the ball?

157. ## Algebra 2

Plan A charges $5 per minute plus a one time monthly fee of$75 and plan B charges $7 per minute, plus a one time monthly fee of$25. After how many minutes will the total cost of the two equations be the same?

158. ## quemistry

arrange the following groups of elements in order of increasing ionization energy : a. Be,Mg,Sr. b. Bi,Cs,Ba. c. Na,A1,S

159. ## physics

what is acceleration of an object over a 4second period if its starting velocity is 8 m/s and it velocity is 20 m/s?

160. ## math

the population of Ling is partly english and partly french.If 80% speak english and 70% speak french,what percentage speak both languages?

161. ## math

simplify 10 to the -4 power

162. ## simple interest

if i deposit 3,500 dollars at and intrest rate of 71/2% per year for 5 years what would my interest amount be?

163. ## Science

1. A certain radar installation transmits electromagnetic radiation with a wavelength of 2.5 cm. What is the frequency of this radiation? 2. For the radar above, how many seconds will it take for a signal to reach an airplane 15 km away, and return to the

164. ## physics

A crate of mass 96 kg is loaded onto the back of a flatbed truck. The coefficient of static friction between the box and the truck bed is 0.14. What is the smallest radius of curvature, R, the truck can take, if the speed with which it is going around a

165. ## social studies

What physical feature is in Africa that is located in the north and separates it from Europe?

166. ## Math

Word Bank agenda amiable befuddle blight boisterous clarity compliant conserve debut gory gross induce leeway limber maze oracle partisan reimburse vacate vagabond Ms. Fillmer explained with such ____- how to go about changing a tire that I felt that even

167. ## finite math

three cards are randomly drawn without replacement from a standard deck of 52 cards. What is the probability of drawing an ace on the third draw?

168. ## Physics

A girl riding a bicycle at 2.16 m/s throws a tennis ball horizontally forward at a speed of 1.38 m/s relative to herself. The tennis ball lands 1.84 m horizontally from the point at which the girl released the ball. How high above the ground was the ball

169. ## English

Word bank agenda amiable befuddle blight boisterous clarity compliant conserve debut gory gross induce leeway limber maze oracle partisan reimburse vacate vagabond The high point of the social season was the formal ____ of young ladies at the annual

170. ## Physics

A 5-m-long string, fixed at both ends, has a mass of 9 g. If you want to set up a standing wave in this string having a frequency of 298 Hz and three antinodes, what tension should you put the string under? I got 0.009kg(a984.68m/s)^2/5=7090 N it still

171. ## American history

2. The Wilmot Proviso was a proposed amendment to a military appropriations bill that would A. permit the slavery issue to be determined by popular sovereignty. B. regulate competition between free and slave states. C. ban slavery in territories acquired

172. ## math

a cabinet will inclose a rectangular loud speaker system and will have an internal volume of 2.4 cubic feet. The height will be 1.5 times the width. What are the dimesnions of the enclosure that can be constructed at a minimum cost?

173. ## Chem 1A

Would I use half reactions to balance: Cl_2 --> Cl- + ClO_3- ?

174. ## MATH FIFTH GRADE MATH!!!!!!!!!!!!!!!!!!

WHICH DATA LANDMARK BEST REPRESENTS THE NUMBER OF HOURS A TYPICAL STUDENT WATCHES TV-------------------- THE MEAN, MEDIAN, OR MODE

175. ## math

what is 4x8????

176. ## english

In this case: Your teacher is carrying a pile of heavy books. Offer help. what is better to say? Shall I carry that for you? or Sorry, can I help you? Thanks :) Minnie

178. ## Finance

United Technology Corporation (UTC) has $40 million of convertible bonds outstanding (40,000 bonds at$1,000 par value) with a coupon rate of 11 percent. Interest rates are currently 8 percent for bond of equal risk. The bonds have 15 years left to

179. ## Trigonometry

simplify using imaginary number i. Division: square root of -5/square of -7.

180. ## Math

A bag contains 10 marbles: 1 red, 2 blue, 3 green, and 4 yellow. I reach into the bag and pick 5 marbles at random. Determine the probability that my pick has: (a) At least 2 yellow marbles. (b) At least 2 yellow marbles and at least 1 green marble. (c)

181. ## Physics

sofa wont fit through the door so i lift the 86.1 kg sofa 17.2 m from the street. how much time will the lift take?

182. ## math

what is a median using math what graph do you use when your listing peoples favorite sport and height how many types of grapha are there please name all

183. ## physics

find the change n momentum of a 1120-kg car that increases its speed / what minimum force is need to do this?

184. ## math

If p is an odd prime, prove that (2/p)=(-1)^[(p^2-1)/8]

185. ## chemistry re crystalizing

describe basic steps to take re-crystalizing synthesized aspirin. using two solvents to perform this task (ethanol and water)which solvent should be used to dissolve the aspirin and which one should force it out of the solution

186. ## math

A Japanese beetle has a lenght between0.3 and 0.5 inch. Find two lenghts that are within the given span. Write them as fractions in simplest form.

187. ## Physics HELP!!

What is the vector product of (4, -3, -5) and (5, -4, 2)? A. (-26, -33, -1) B. 22 C.(20, +12, -10) D.(9, -7, -3) E.(14, -17, -1)

188. ## precalculus

Verify the identity. csc t − sin t/csc t= cos2 t

189. ## physics

The net external force on the propeller of a 3.9 kg model airplane is 6.8 N forward. What is the acceleration of the airplane?

190. ## Calculus

use implicit differentiation to find dy/dx if x^3+y^3=6xy

191. ## Calculus

use implicit differentiation to find dy/dx if x^3+y^3=6xy

192. ## maths

simplify: 9X2 ---- 21X2

193. ## ACT Math

Carlos goes to a local deli for lunch and orders a sandwich. He needs to choose a bread, a meat, a vegetable, a cheese and a source. How many sandwich combinations are possible? Assume Carlos always pick only one item from each category. Bread: Italian,

194. ## Science 8R - help

Homework - Look around your house and give an example of each phase of matter phase of matter is gas, liquid, and solid????? right???

195. ## math

rewrite each expression using the distrubitive property 6x + (-5x)

196. ## Math

How do I factor (ab+3a-5b-15) by grouping?

197. ## math

14 +(-2-(-2)to the 3rd) power

1. Which of the following examples of dialogue shows the correct punctuation? (1 point) Madison said, "We should all go to the hardware store". Madison said, "We should all go to the hardware store." Madison said "We should all go to the hardware store."

199. ## Physics

Frida hits a volleyball so that it moves with an initial velocity of 6.76 m/s straight upward. If the volleyball starts from 1.84 m above the floor, how much time will it be in the air before it strikes the floor?

200. ## Physics

Find the gravitational force exerted by a 0.525 kg mass on a 0.109 kg mass 2.04 m away.

201. ## math

compounded- what would be the amount of compound interest on $12,000 invested for one year at 6%, compounded quarterly? round your answer to the nearest tenth. could you show me the work please ? i had$737.00 is that answer correct?

202. ## physics

The atmospheric pressure above a swimming pool changes from 771 to 772 mm of mercury. The bottom of the pool is a rectangle (11 m cross 21 m). By how much does the force on the bottom of the pool increase?

203. ## math

x^2=-11x-10 ?

204. ## Alegabra

Russell Gossman is training for the Olympics. He wants to know the distance across Lake Royal, so he can write in his training logbook how far he rows each day. If from one point on the shore to one side of the lake is 13 km and from the same point to

205. ## science

what is an artery thattakes the oxygen rich blood to the rest of the body from the heart

207. ## math

5x^2-20x=0 ? How to simplify

208. ## Math

Rick's car gets 29.7 miles per gallon on the highway.If his fuel tanks hold10.45 gallons,then how far can he travel on one full tank.?

209. ## Physics

Two people are talking at a distance of 3.4 m from where you are, and you measure the sound intensity as 1.0 10-7 W/m2. Another student is 4.2 m away from the talkers. What sound intensity does the other student measure?

210. ## chem

what is the ph of a solution in which 250.0 ml of .200 M HNO3 is added to 280.0 ml of .150 Ba(OH )

211. ## Math

Tens and hundred digits are equAland ones and thousands have a sum equal to one of the middle digits the entire digit sum is 21 what year was it made in

212. ## Math, Physics

The pressure in a fire hose is 20 atm. How high can a firefighter spray water from this hose? One atm is about 1×105 Pa. The density of water is 1.0 g/ml, or 103 kg/m3. The acceleration of gravity, g, is 9.8 m/s2.

213. ## chemistry

What role does RNA play in proteomics and why?

214. ## chem

If an albumin solution replaces starch inside the dialysis tube, would it be detected in the liquid outside the dialysis tube

Explain, in several paragraphs (no more than four), the implications of the Malcolm Gladwell article, "How David Beats Goliath." Apply some aspects of the article to your experience and future.

216. ## math

How do you write this problem in algebraic expression (four different people came in today; and each bought one third of a box and 13 candies)

217. ## Math

An object is acted upon by two forces, u and v, with direction angles €u and€v, respectively. Find the direction and magnitude of the resultant force. U= 30lb €u = 0degrees v= 90lb €v =60 degrees

218. ## psychometric test

Hi i have been given an experiment paper on personality, in this we have to come up with an updated version of Eysencks (EPI) questionnaire. This is to measure extroversion only ,we are measuring concurrent validity. Im having difficult in answering the co

219. ## physics

How high will an object rise if it is projected upward at a 45 degree angle and an initial velocity of 50 m/s?

220. ## math

compare and order 7/12, 2/3, and 6/15

221. ## physics

an object accelerates at 0.8m/s2 when a resultant force of 200n is acting on it what is the mass of the object

222. ## Physics

True or false: If two planets have the same mass but the second one has twice the gravity, it must have four times the radius

223. ## English

Correct the sentence or choose D if it is complete. Bring money for snacks. A.Bring money for snacks when we go to the zoo. B.Will you bring money for snacks? C.You should bring money for snacks. D.This is a complete sentence. No correction is necessary I

224. ## English

Correct the following sentence or choose D if correct. The oldest animal at the zoo. A.At the zoo, the oldest animal. B.Saw the oldest animal at the zoo. C.The tortoise is the oldest animal at the zoo. D.This is a complete sentence. No correction is

225. ## physics

A tow truck does 3.5 k j of pulling horizontally on a stalled truck to move 2.8 m horizontally in the direction of the force. What is the magnitude of the force.

226. ## biology

i need help with my genisis essay and it cant involve religion

227. ## math

5x^2=45 How to simplify?

228. ## algebra

How do you graph y=4^x

229. ## problem solving

An average-size female spider and a large spider can lay a total of 2100 eggs at one time. the large spider lays 20times the number of eggs as the average-size spider. how many eggs does the average sized spider lay

230. ## Physics

Please help The year is 2115. There is a high jump competition on planet Mars. An athlete of mass 72 kg who has been clearing a height of 2.44 m on Earth just the week before is competing here. What is the height this athlete can expect to clear in this

231. ## Calculus

Find the absolute maximum & minimum of the function f (x)=e^x for any closed interval [a,b] Justify your answer.

232. ## chemistry

CH3CH2CHCHCH3 --HIO4-> | | HO OH Include all steps of reaction, any additional reagents/conditions needed and the products formed. ive been stuck on this for hours need help please

233. ## calculus

okay i need to find the derivative of f(x)=πsin2x and f(x)=cosπx^2 ---------------- π is pi and if you could show steps it would be GREATLY appreciated. thank you so much!

234. ## calculus

The Horizontal Assymptote for the graph of f(x) = (-6x3 +2x + 5)/(x3-1) is the horizontal line with equation y=___

235. ## Maths

Find the derivatives of these: f(x)=√

236. ## College Algebra

Find a polynomial function f(x), with real coefficients, that has 1 and 3+2i as zeros, and such that f(-1)=2 (Multiply out and simplify your answer)

237. ## math

please graph 4x^2/(x^3-1) and show asymptotes

238. ## Physics

An airplane has a mass of 2.04 × 104 kg and takes off under the influence of a constant net force of 2.18 × 104 N. What is the net force that acts on the plane's 86.0-kg pilot?

239. ## French

Fill in the blanks. On regarde la carte ____ de commander. Pierre ___ a(accent grave) italien au lyce(accent aigu)e.

240. ## writing. to pilgrims

Subject. writing to pilgrims. I need help on 3 reasons why pilgrims should not eat turkey for thanksgiving and examples with it.

241. ## English

None of us could possible overlook the ___ error the waiter made in adding up our check gross?

242. ## science

summerize how isostatic adjustments affect isostasy

243. ## Physics

A helicopter drops a box from 120m in the air. a. Determine the time the box is in the air. b. determine the velocity the box would have right before it hits the ground c. Before the helicopter had a horizontal velocity of 55/s. Determine the distance the

244. ## spelling

eioubdhrs unscramble

245. ## English

I think we should visit the monkeys first. Identify the word visit in the sentence... complete predicate complete subject simple predicate simple subject I think it is simple subject? yes?

246. ## Chemistry

A 5ml, 10ml, 15 ml, and 20ml Aliquot of 0.010 M sodium salicylate solution was diluted to 100 ml in four different 100ml volumetric flasks with the iron (III)Chloride solution. What are their concentrations.

247. ## Calculus

Consider f(x)=x^3-x over the interval [0,2]. Find all the values of C that satisfy the Mean Value Theorem (MVT)

248. ## medical coding/billing

I need help finding the ICD-9-CM code for excision of left flank tissue mass. Layered closure measuring 4cm with margins prior to excision?

how do I write an equation for "fifteen decreased by twice n equals 13"

250. ## math question

How do you write 1/2 as a percent?

251. ## English - Ms, Sue

After that, we can get some popcorn at the snack bar. Identify can get some popcorn at the snack bar... complete predicate complete subject simple predicate simple subject I think it is complete predicate - yes?

252. ## science

whats silicons biggest isotope and which one is the smallest?

253. ## math

I need to write a multiplication or division equation with a variable for the unknown for this problem: Maddie plants 3 seeds in each of 15 plots.

254. ## trigonometry

Suppose (x, y) =(4, -5) and θ is an angle in standard position with (x, y) on its terminal side. What is the degree measure of angle θ? im not sure how to do this one problem plz show step by step

255. ## algebra

six people ate one tenth of a pie and there was two fifth left. How much pie did she start with?

256. ## math

kevin has a rabbit,a ferret,a gerbil,and a turtle. he feeds them in a different order every day. in how many different orders can kevin feed his pets

257. ## Physics

average force

258. ## Physics

An airplane is flying in a horizontal circle at a speed of 106 m/s. The 81.0 kg pilot does not want the centripetal acceleration to exceed 6.16 times free-fall acceleration. Find the minimum radius of the plane’s path. The acceleration due to gravity is

259. ## Calculus

Can I simplify (x^.75)((200-3x)^.5)?

260. ## general chemistry

The gas with a pressure of 1100 at 175 is cooled to 0 °C find out what the Pf= in torr

261. ## probablility

you have blue, yellow and green marbles. 24 marbles in bag, how many are blue

262. ## math

A Trapezoid has an altitude of 12 cm.. its parallel sides measure 10 and 8 cm .. Whats the area

263. ## Science

I need help with static electricity and generating current electricity.

264. ## Pre-calculus

A sailboat leaves port and sails for 7 miles NE and then 9 miles NW. If the speed remains constant, what bearing would take the sailboat home?

what is 1 minus 1-sixth minus 11 eighteenths?

266. ## algebra

*simplifying rational expressions a. 6x+12/4-x b. 3x^2/12-2x

267. ## english

What is right? You might be taller, but I can jump higher! or .. I could jump higher?

268. ## chemestry 130

6.00 moles H2S*6.02*10^23/1 mole H2S

269. ## Math

What is the next number in the pattern 20,000;4,000;800;160;____

270. ## Math

Identify the property or rule shown by each number sentence: 5 * (2*4) = (5*2) *4

271. ## precalculus

Write the trigonometric expression in terms of sine and cosine, and then simplify. cos u + sin u tan u

272. ## Social work

Select a culture that you are familiar and describe the structure and culture of that community?

273. ## science

FORGET IT I WILL ASK SOMEONE ELSE:(

274. ## physcis

A soccer ball kicked with a force of 14.8 N accelerates at 6 m/s2 to the right. What is the mass of the ball?

275. ## Fundamentals of Taxation

Taxable income includes: a. child support b. sick pay c. welfare payments d workers compensation payments

276. ## Fundamentals of Taxation

A taxpayer can exclude from income interest received from: a a savingsaccount established at a local bank b. a credit union c. a seller-financed mortgage transaction d. municipal bonds issued by the state.

281. ## math

what %of the numbers are multiples of both 2 and 3

282. ## math

evaluate the following expression if a= -2, h=5 and w= -8 aw^2(w is squared)-hw I did (-2)(-8)^2-(5)(-8) (-2)64-(5)(-8) -128-(5)(-8) -128-(-40) -128=40= -88 I believe this is correct but I want to make sure. Thank you for your help

283. ## math

what % of the numbers are factors of 100

284. ## Chemistry

If 32.6 g of aluminum is produced, how many moles of aluminum nitrate is reacted?

285. ## math

what %of the numbers are prime numbers

286. ## Precalc

Prove or disprove the following identity. cos(-x) - sin(-x) = cos(x) + sin(x)

287. ## math

how many multiples of 11 are there between 200 and 500

288. ## Precalc/Triangles

Draw and solve any triangles satisfying alpha = 29 degrees a = 7 c = 14 I realize I need to draw a non-right triangle and label the sides but I am completely confused one what to do after I draw the triangle

289. ## Trig Identity

Prove or disprove the following identity sin^4theta - cos^4theta = sin^2theta-cose^2theta

290. ## math

What properties of light do the frequency and amplitude of light waves represent?

291. ## English

After that, we can get some popcorn at the snack bar. Identify "Can get some popcorn at the snack bar" complete predicate complete subject simple predicate simple subject I think it is complete predicate - tell me I'm right... :)

292. ## Fundamentals of Taxation

Taxable income includes; a child support b sick pay c welfare payments d workers compensation payments would the answer be a

293. ## Prove or disprove?

cos(X+pi/6) + sin(x-pi/3) = 0 I am working with one side but I am not sure if I can subtract at all here.

294. ## math

last year bob's age was a square number and next year it will be a cube number.How old is Bob now?

295. ## maths

A 3 cm cube is painted on all its faces.It is then cut into 1 cm cubes.How many cubes will have paint on exactly 2 faces?

296. ## Calculus

Find an equation of the tangent line to the curve for the given value of t. x=t^2-2t, y=t^2+2t when t=1

297. ## English

You certainly have a right to cheer for your team but try not to become too _____ and unruly partisan? You told me partisan was wrong but its my only word left

298. ## Physics

In 0.369 s, a 14.2-kg block is pulled through a distance of 3.60 m on a frictionless horizontal surface, starting from rest. The block has a constant acceleration and is pulled by means of a horizontal spring that is attached to the block. The spring

299. ## Physics

A certain light truck can go around a flat curve having a radius of 150 m with a maximum speed of 29.0 m/s. With what maximum speed can it go around a curve having a radius of 88.0 m?

300. ## English

What are the minor affirmative claims to the gap between rich and poor widening?

301. ## Molecular calculations (chemistry)

If you had 19 grams of F, how much Ca would you need to convert all of the F to CaF2?

302. ## Art History

During the early 20th century, Americans saw themselves as different than Europeans and used art to reflect this idea. true or false?

303. ## math

from hundreds chart,what % of the numbers are multiples of both 2 and 3

305. ## Basic Algebra

-1/4 (x-8) +1/2 (x+2) =x+3

306. ## Prove or Disprove

Cos(X+y)cos(x-y)= cos^2theta - sin^2theta I foiled the left side as a start because I can kind of see sin^2+cos^2=1 but I can't finish.

307. ## math

a basketball player scored 40 times during one game. she scored a total of 65 points, two for each two point shot and one for each free throw. how many two point shots did she make? how many free throws

308. ## math

from hundreds chart,what % of the numbers are factors of 100

309. ## Math

The difference between the two numbers is 14. The LCM of the two numbers is 16. Find the two numbers

310. ## math

from hundreds chart,what % of the numbers are prime numbers

311. ## Spanish Beg. 1 - help (anyone???)

Most nouns ending -o and -os are _____________. Most nouns ending in -a and -as are ___________. please help!!!! is there any website that could help me with these questions

312. ## History

What is the North American Bourgeoisie belief between 1763 and 1783?

313. ## Windows Infrastructure

You need to download a large document (100 Mb) from your local network. This document contains the blueprints for a multi-million dollar invention and should not fall into the hands of competing companies. Which should you use to download this document: a

314. ## physics

Fred the otter climbed to the top of an inclined plane. His friend, Giselle the giraffe, suggested that he was so small that gravity would ignore him and he would be unable to slide down. "On the contrary", said Fred, "Since this slope makes an angle of

315. ## math

What is 3^-2 (it is 3 to the -2 squared) I thought the answer was 1/9 and my friend thought it is .1 repeated .1 with the line over it can you tell us which one of us is correct? Thank you

316. ## principles of health and wellness

I am trying to make a list of some complimentary and alternative health care options for people who have breast cancer, is there anyone who can help me?

317. ## Physics

How much force is required to accelerate 5kg at 15m/sec?

318. ## chemistry

1. To make the following saline solution (375ml 0.5% w/v sodium chloride) what would you weigh out? What volume of water would you use?

319. ## math

What is 5^-2? I got 1/25 Is this correct? THANK YOU SO MUCH FOR YOUR HELP

341. ## physics

The pressure in a fire hose is 20 atm. How high can a firefighter spray water from this hose? One atm is about 1×105 Pa. The density of water is 1.0 g/ml, or 103 kg/m3. The acceleration of gravity, g, is 9.8 m/s2.

342. ## Math

whats factorization?