# Questions Asked onJanuary 22, 2013

1. ## statistics

The average life of Canadian women is 73.75 years and the standard deviation of the women's life expectancy in Canada is 6.5 years. Using the Chebyshev's theorem, determine the minimum percentage of women in Canada whose life expectancy is between 64 and

2. ## maths

From the top of a cliff 150m high, the angles of depression of two boats are 60 and 30. Find the distance between the boats if they are on the opposite sides of the cliff.

3. ## Math

Emily wants to make a rectangular model with a height of one connecting cube. She wants to make the model in exactly 2 different ways. How many connecting cubes could Emily use to make the model in only two ways

4. ## English

What elements of the Restoration comedy are seen in The Importance of Being Earnest?

5. ## algebra

the question says: the yearbook committee is distributing yearbooks to students by class. Each class has approximately the same number of students. The table shows number of volunteers who helped to distribute the yearbooks to each of the four classes and

6. ## English

What is the function of the characters of Miss Prism and Chasuble?

7. ## chemistry

how to calculate the mass of hydrogen in 150.0 g of ethene

8. ## Chemistry honors

Formula: 2LiOH + CO2 yields Li2CO3 +H2O Suppose a lithium hydroxide canister contains 155grams of LiOH. What mass of CO2 will the cannister be able to absorb? If it is found that after 24 hours of use the cannister has absorbed 102 grams of CO2. What

9. ## Physics

A hotair balloonist, rising vertically with a constant speed of 5.00 m/s, releases a sadndbag at the instant the balloon is 40.0 m above the ground. after it is released, the sandbag encounters no appreciable air drag. a. compute the position and velocity

10. ## English

What is the significance of the repetition of the word absurd in the play?

11. ## Chemistry

a sample of hydrogen effuses through a porous container about 9 times faster than an unknown gas. Estimate the molar mass of the unknown gas.

Glenda bought z containers of laundry detergent at $9 each. She gave the cashier$50. a. Find the change Glenda received in terms of z. b. If z = 3, how much change did Glenda receive?

13. ## math 6

Jordan has as many DVDs as Joseph. If Jordan has 56 DVDs, then how many does Joseph have? 4/5 x 56/1 = 224/5 = 44.40 answer 44 DVD's Is all this correct?

14. ## Chem 1212

An antacid tablet containing calcium carbonate as an active ingredient required 9.19 mL of 0.0956 M H2SO4 for complete neutralization. The mass of the tablet was 0.193 g. What percent of calcium carbonate was in the tablet? Thanks!

15. ## Physics

Bert is standing on a ladder picking apples in his father's orchard. As he pulls each apple off the tree, he tosses it into a basket that sits on the ground 2.2 m below at a horizontal distance of 1.3 m from Bert. How fast must Bert throw the apples

16. ## finite math

A tray contains 14 chocolate chip cookies and 16 oatmeal raisin cookies. How many ways can a child select 4 cookies that include at least 1 chocolate chip cookie?

A jar contains 24 blue marbles, 16 red marbles, and 14 white marbles. Find the simplified ratio of total marbles to red marbles.

18. ## Chemistry

a sample of hydrogen effuses through a porous container about 9 times faster than an unknown gas. Estimate the molar mass of the unknown gas.

19. ## physics

A 920 g empty iron kettle is put on a stove. How much heat in joules must it absorb to raise its temperature form 15.0° C to 93.0° C? (The specific heat for iron is 113 cal/kg · °C.)(1 cal = 4.184 J)

51. ## Intro to Physical Science

A 3-kg stone is dropped from height of 100 m. Find its kinetic and potential energies when it is halfway to the ground.

52. ## Chemistry

How many grams of calcium phosphate (precipitate) could be produced by combining 12.096g of calcium nitrate dissolved in water with 16.498g of rubidium phosphate dissolved in water? Report your answer to 3 decimal places.

53. ## physical sciences

two forces of 5n and 7n respectively act on an object. What will the resultant of the two vectors be at maximum??

61. ## spanish

¿Cómo se llama tu maestra favorita y Qué clase enseña?

89. ## Government & Politics

Which of the following statements regarding the case, McClesky v. Kemp (1987), is TRUE? The Court upheld the constitutionality of the death penalty. The Court ruled that the death penalty did not violate the Fourteenth Amendment simply because minority

90. ## English

Word box avenge cede deluge discretion giddy impact intimidate liberate logical misrepresent optional outright rendezvous rotund saunter sluggish subordinate tint variable verge. I'm going to skip some on my paper so I skipped some numbers. 1. By late

91. ## physics

Two wires have the same cross-sectional area and are joined end to end to form a single wire. The first wire has a temperature coefficient of resistivity of α1 =0.00480 (C°)-1 and a resistivity of 4.90 x 10-5Ω m. For the second, the temperature

92. ## Chemistry

How many grams of calcium phosphate (precipitate) could be produced by combining 12.443g of calcium nitrate dissolved in water with 16.083g of rubidium phosphate dissolved in water? Report your answer to 3 decimal places.

93. ## Math 8 -HELP! (PLZ!)

Is a a GOOD, RESOURCEFUL, UNDERSTANDABLY website for GRADE 8 MATH (NYS) that explains about slope intercept form. Please because I really don't understand it.

94. ## Physics

A car sits in the parking lot. Above is a cargo plane, flying horizontally at 61 m/s. At the exact moment the plane is 182 m directly above the car, a crate accidentally falls from its cargo doors. Relative to the car, where will the crate land? Enter m as

95. ## geometry

give the following determine the set (A'U'B)n(AUB)' U ={1,2,3,4,5,6,7,8} A={1,2,3,7,8} B={1,3,4,6}

96. ## Pre-Calculus

State the domain and range of the relation y = 2x + 3 My answer: y= 2x+3 y= 2(1)+3=5 domain: 1 range: 5 This is how my book showed me how to do it. I just wanted to make sure I did it right. If not could you please give me an example?

97. ## Math

The table below shows the relationship between the number of cafeteria tables and the number of seats for students Number of tables n, 3 5 7 9 11 Number of seats s 36 60 84 108 132 3n 36s 5n 60s 7n 84s 9n 108s 11n 132s Which equation could be used to

98. ## Physics

A 46.6 kg crate is at rest on a level floor, and te coefficient of kinetic friction is 0.32. The acceleration of gravity is 9.8M/s^2. If the crate is pushed horizontally with a force of 201.67 N, how far does it move in 3.42s? Answer in units of m

Which of the following ratios are equivalent to five-twentieths? (Hint: There is more than one equivalent ratio.)

100. ## math

The stadium capacity allows for players, radio and newspaper reporters, and stadium workers in addition to spectators. How many of these people could be at a game? Victory Stadium: Stadium Capacity - 42,500 General Admission Seating - 31,750 Reserved

Account for the following observation: 1)Ammonia is exceptionally soluble in water. 2)Hydrogen fluoride ,HF, has a higher boiling temperature than methane, CH4. 3)The boiling temperature of ammonia (NH3)is -33˚C but that of phosphine (PH3) is -88˚C

102. ## Physics

The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas? a. 2 m3 b. 1 m3 c. 0.5 m3

103. ## math

Sheila has a 12 gallon gas tank in her heavily packed van. On a recent trip she drove a total of 90 miles with the air-conditioner on the entire way. The gas gauge read exactly 3/4 of a tank at the start of the trip, and exactly 1/4 of a tank at the end of

104. ## pre- algebra

Write a rule for the linear function in the table. x f(x) 1 3 2 2 3 1 4 0 A. f(x) = 4x B. f(x) = x – 4 C. f(x) = x + 4 D. f(x) = 4 – x

105. ## math

Marie bought 8 pounds of applesbfor 0.82 per pound and paid for them with a ten dollar bill. How much should she get back in change

106. ## math

list a set of at least 12 numbers that has a minium of 28 maximum of 34 median of 30 mode of 29

107. ## Chemistry :(

Calculate the molality, % percent composition by weight, and the mole fraction of HCl in an aqueous 12M HCl solution that has a density of 1.20 g?mL Please help :(

108. ## Dynamics

The acceleration of a particle moving along a straight line is inversely proportional to its speed with the constant of porpotionality being k. The body starts from the position s = x0 ^i with initial speed v0. Determine the velocity of the particle as a

109. ## math

I've been asked to practice writing statistical questions about different topics by conducting a survey or experiment. I understand how to write them by conductin a survery but having trouble understanding what is meant by experiment. For instance of of

110. ## social studies

why do some school districts feel obligated to push patriotism in their school?

111. ## SpanishHELP? :/

B. Conjugate the verb in the right form to complete the sentences. 6. ¿Cómo ____________ (ser) su casa ideal? 7. ¿A quién ____________ (regalar) tú una caja de chocolates? 8. ¿Qué ____________ (pedir) yo en un restaurante vegetariano? 9. A nosotros

112. ## Physics

The pressure of a gas in a cylinder with a movable piston is increased from 45 kPa to 90 kPa. If the temperature is held constant, and the initial volume of the gas in the cylinder is 0.5 m3, what is the final volume of the gas? a. 2 m3 b. 1 m3 c. 0.5 m3

113. ## Physics

A ball rolls off the edge of a balcony at 8.0 m/s. Find its speed after 3.8 s in the air. Use g = 10. m/s2 and enter m/s as unit.

114. ## math

One hundred six of the two hundred sixty three students in the auditiorium were boys. How many girls were in the auditiorium

115. ## Chemistry

Prepare 250 cc n/10 KMno4 solution

117. ## Physics

A 2kg mass, initially at rest, is shot from a spring (k=550N/m) which is compressed by 1.3m. The 2kg mass hits a stationary 6kg mass (the actual collision lasts 0.02seconds). After the collision the 2kg mass is travelling 11m/s to the left. To the right of

118. ## Physics

Brittany throws a slingshot pellet directly at a target that is far enough away to take 0.190 s to reach. How far below the target does the pellet hit? Enter m as unit. How high above the target should she aim? Enter m as unit.

167. ## Science

I asked this question before but i wrote it wrong. Here it is agian. What is the warmest area in Arizona during the winter time? Plese help! Thanks for all your help! :)

168. ## math

Need help on one more category for a statistical question that could be answered by conducing an experiment. The category is vacation destinations. I easily thought of a question for survey on vacation destinations but can't think what you could experiment

169. ## working in a pharmacy

when a sale is lost a.forget it as soon as possible b.it is usually the customers fault c.it is usually the assistants fault d.the loss may have been due to the customer,the assistant,or the product my answer is d

170. ## critical thinking

Why is Wikipedia acceptable as a quick reference but not for research?

171. ## math

what is the unit rate 3 for 5

172. ## Math

2- digit number. There are nine tens. The sum of its digits is 12. What is the number?

173. ## Physics

A 2.0kg block hang from a vertical spring causes it to stretch by 200cm. If the 2.0kg block is replaced by a 0.50kg mass and the spring is stretched and released, what are the frequency and period of the oscillations? Please help and provide solutions and

174. ## Differential Equations

Find the general solution of the differential equation specified. 1) dy/dt= 1/(ty+1+y+1) 2) dy/dx=sec y I got y(x)=arcsin(x) for the second one. I'm not sure what to do with the first one.

175. ## chemistry

the aqueous solution of copper sulphate & zinc sulphate appear how

176. ## English

Word box avenge cede deluge discretion giddy impact intimidate liberate logical misrepresent optional outright rendezvous rotund saunter sluggish subordinate tint variable verge. I'm going to skip some on my paper so I skipped some numbers. 14.After the

177. ## Physics

A football is kicked 65 m. If the ball is in the air for 4.3 s, find its horizontal velocity vx. Enter m/s as unit and use g = 10. m/s2. What is its initial vertical velocity vy? Enter m/s as unit. With what initial speed was the football kicked? Enter m/s

178. ## computer information

I am tring to find as much information on the digital Divide in the USA?

179. ## World History

What was the effect of expanding voting rights?

180. ## probability

for a small regional airline, the number of claims for missing luggage averages 70 per week. a. what is the probability that on a given day, there are fewer than 3 claims made against the airline? b. what is the probability that there are more than 3

181. ## Algebra

x+y=x-5 I want to get y alone on one side, so if I subtract x from both sides, what would be x - x?

182. ## Math

What is the average of 4, 12, 23, 11, 5

183. ## Math

I have to come up with an equation that calculate if I blink my eyes 22 times per 10 seconds, how many times would I blink in 1,000,000 seconds? Need an equation to prove my answer of 2,200,000 times

184. ## working in a pharmacy

the area of the counter around the cash register should be used to display a.typical pharmacy lines b.gifts c.open sellers d.products to treat the common cold my answer is a

185. ## physics II

What is the magnitude of the earth's gravitational field at the location of the ISS?

186. ## Math

The algebraic relation d= 0.0056s2 +0.14s models the relation between a vehicle's stopping distance d, in metres and its speed s, in km/h. a) What is the fastest you could drive and still be able to stop within 80m? b) What is the stopping distance for a

187. ## science

What is the gravitational potential energy of a 2kg ball on planet earth raised 15 meters in the air?

188. ## calculus 1

Evaluate the limit limit t^4 − 625/t^3 − 125 t → 5

235. ## math exam prep question

Simplify: 1/4a+2 + 4/6a+3 I got 14/6(2a+1) but I don't think it is right

236. ## algebra

would you help me write a logic application for andy has the cards1,5,and 7 belle has the crds 5,4,and 7 carol has the cards 2,4 and 6 whats the salient facts of the problem? explain the strategy for solving the problem? present a step by step solution for

241. ## Chemistry

How many equivalents are in 1.75L of a 8.2M solution of sulfuric acid.

242. ## Math

I need help finding discounts and sales tax.Please write out the steps so I fully can undestand the concept Thank You!!

243. ## math

Change to mixed fractions 287\37. B 840\64. C 200\90. D 872\36

244. ## Pre Algebra

If I blink 22 times in 10 seconds, how many times would I blink in 1,000,000 seconds. Need an algebraic or? expression to show my calculation. I have an answer of 2,200,000 blinks in 1,000,000 seconds

245. ## science

the name given to the type of DNA found in telomeres

246. ## math

On the first day of their 2598 mile trip , the curtis family drove 683 miles.how many more miles do they have to drive until they complete their trip

247. ## Lit

Sterling Browns Riverbank Blues. Who do you think Brown wrote this for and who was the audience?

248. ## English

Which is proper grammar? 1.)The maid comes in and does the massage. OR 2.)The maid comes in and do the massage. I personally think it is the first one, but i need your opinion.

249. ## algebra

simplify: (x3)2*x

279. ## working in a pharmacy

understanding terms used in the pharmacy will enable you to a.impress the pharmacist b.identify your customers real condition c.explain the effects of perscription medicines to your customer d.prescribe a drug to ease your customers condition my answer is

280. ## Math

5x^2+5x-2 how to find the root?

281. ## working in a pharmacy

an oder is accompanied by a document called a a.packing slip b.brochure c.statement d.order form my answer is a

282. ## math

2,6,10,14, what is the next number at ate a/30 place. a/n=-2+4n a/30=?