# Questions Asked onMarch 14, 2016

1. ## Math

1. The two rectangles are similar. Which is the correct proportion for corresponding sides? the two rectangles are 4 by 12 and 8 by 24. thanks! A) 12/8=24/4 B) 8/4=24/12 C) 12/4=8/24 D) 4/12=24/8 Is the answer C? I'm not quite sure about it but that's what

2. ## world history pls pls help help

How were the Aztec and Inca civilizations different in their public works projects? The Aztecs focused on agricultural innovations, while the Incas focused on road construction. The Aztecs focused on road construction, while the Incas focused on

3. ## physics

figure 3.1 shows a rectangular concrete slab of weight 18000N. It rests on a brick wall and is the roof of a bus shelter. The concrete slab is 3.0 m wide. The wall is 2.5 m from the front of the concrete slab and 0.50 m from the back. The cables behind the

4. ## Maths

The 18th term of an A.p is 25.(a) find it's first term when the common difference is 2.(b) what term of an A.p gives 49

5. ## Language

I am a native of North America by Chief Dan Geirge. Man must love fully or he will become the lowest of the animals. It is the power to love that makes him the greatest of them all…for he alone of all animals is capable of love. Love is something you and

6. ## english

13. Which of the following sentences contains a comma splice? A. Our friend, who travelled from Tennessee, was quite tired when he arrived. B. We need help with organization, structure, and spelling. **C. The pots clanged to the kitchen floor, the kitten

15. ## math help pls pls

The correlation coefficient for blood pressure and amount of vegetables eaten in a group of people is −0.7. Analyze the following statement: High blood pressure is caused by not eating vegetables. Is this a reasonable conclusion? No; blood pressure and

16. ## calculus

The surface area of a sphere initially zero increases uniformly at the rate of 26 cm^2/seconds. Find the rate at which the radius is increasing at the end of 2 seconds.

17. ## calc

A poster is to contain 50 square inches of printed matter with margins of 4 inches at the top and bottom and 2 inches at each side. Find the OUTER dimensions if the total area of the poster is the smallest possible.

18. ## Chemistry

at 500K, Kc for the reaction:H2 +D2 gives 2HD is 3.6 what is the value of Kc for 2HD gives H2 +D2

A cylinder has a radius of 4x + 2 and a height of 5x — 4. Which polynomial in standard form best describes the total volume of the cylinder? A.80pix^3+144pix^2+84pix+16pi B.20pix^2+26pix+8pi **** C.80pix^3+144pix^2+84pix-16pi

20. ## mATH

Brittany is checking whether the pool she wants to buy will fit in her backyard. The pool with the patio measures 4 m by 5 m. Refer to the diagram below. a) Write an algebraic expression, in factored form, for the shaded area. b) When Brittany measures her

21. ## AP Physics

At their closest approach, Venus and Earth are 4.2x10^10m apart. The mass of Venus is 4.87x10^24kg, the mass of Earth is 5.97x10^24kg, and G=6.67x10^-11Nm2/kg2. What is the force exerted by Venus on Earth at that point?

22. ## Health

What is the exchange of gases between the lungs and the blood? A. Internal respiration B. Posterior respiration C. External respiration D. None of the above i'm lost please help me.

23. ## psychology

Because you are bored one afternoon, you decide to try a little experiment. You open your eye very wide, extend your thumb, and then poke yourself in the e ure. Aside from being very foolish and in alot of pain, you may learn something about your eye when

24. ## mathematics

A train takes 5mins to cover a distance of 3km between two stations P and Q. Starting from rest at P, it accelerates at a constant rate to a speed of 40km per hour and maintains this speed until it is uniformly brought to rest at Q. If the train takes

25. ## Physics

A train moving at a constant speed of 100km/h travels east for 40min, then 30o east of north for 20 min, and finally west for 30min. What is the train's average velocity for the trip? The answer is 30 km/h (E 40 N) but I keep getting 66.6 km/h (E 30 N)

26. ## math

1. what is the term for data that are grouped closely together? a. outlier b. liner c. positive d. clustering 2. what association would you expect if you was graphing height and weight ? a. position b. nonlinear c. negative d. none of these 3. what

27. ## Health

What might happen if you lost a lot of your platelets? A. You might bleed for a longer time.

28. ## Health

What is the exchange of gases between the blood and tissue cells? A. Internal respiration B. Posterior respiration C. External respiration D. None of the above A?

29. ## Math

How are hexagons a subcategory of a polygon?

30. ## english

what is the meaning of the Root bell

31. ## social studies

To which system of government is the federal system most similar? A - The Unitary system B - The confederal system C - The Unitary System D - The confenderal System ******

32. ## Chemistry

How do I prepare 1liter of a 93.1% w/w solution of sulfuric acid using 98% sulfuric acid and water?

33. ## maths

The first term of A.P. of 20th terms is 2and its last term is 59 . Find its 6th term from the end .

34. ## Physics

A copper cylinder is initially at 20.0 oC. At what temperature in oC will its volume be 0.39 % larger than it is at 20.0 oC? The linear coefficient of expansion of copper is 28.6x10-6¢XC-1

35. ## Maths

9.9 rounding to the nearest meter

36. ## English

1. I'm worried about my English. - Why don't you practice speaking more? 2. I'm worried about English. - ( ) (Is this correct without 'my' before 'English? What is the difference between #1 and #2? What will be the answer to the question 2?)

37. ## chemistry

If the solubility of gas in water is 5.0g/L when the pressure of the gas about the water is 2.0 atm, what is the pressure of the gas above the water when the solubility of the gas is 1.0 g/L?

38. ## Chemistry

3. The Haber¡VBosch process for fixation of nitrogen is one of the more important chemical reactions ever invented. Without the invention of this process, which is used to make ammonia for fertilizer, the world¡¦s population would not be as large as it

39. ## Language arts, all right?

(During the break between classes, LEE approaches CHANDRA, who is getting a book out of her locker.) LEE: Hi, Chandra. CHANDRA: Hi, Lee. Are you getting used to this new school yet? LEE (hesitantly): Well, I’m finding my classes all right, but…

40. ## math

Jorge has prepared his science project on a piece of poster board that has an area represented by the trinomial x2 + 5x – 50. a) What are the dimensions of the board? b) Write an expression for the perimeter of the board. c) What is the actual perimeter

41. ## Health

In order to reproduce, female sex cells must be fertilized by ________. A. Sperm B. Androgens C. Testosterone D. All of the above A? i'm just making sure i don't want to get a bad grade

42. ## Geometry

Please explain how I am supposed to get this I really don't understand, but I think that I know the answer. Thanks! 1. A conveyor belt carries supplies from the first floor to the second floor which is 12 feet higher. The belt makes a 60 degree angle with

43. ## intro to computers

Which logging category does not appear in Event Viewer by default?

44. ## Health

Endocrine glands ________. A. Do not have ducts to carry their product to a surface B. Do not have ducts to retain their product below surface C. Have ducts that carry their secretory product to a surface D. Have ducts to retain their secretory product

1. Which of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China. **?? b. The Grand Canal in China is a man-made waterway, still used, that is the oldest

46. ## Math

Juan is making the shape of a rhombus. the first three angles are 80 degrees 80 degrees and 100 degrees what is the measure of the fourth angle? A. 60 B. 100

Identity three courses or study field you are interested in following after grade 12

48. ## Chemistry

If the percent (mass/mass) for a solute is 6% and the mass of the solution is 300 g., what is the mass of solute in solution?

49. ## Heath

Shortly after quitting a smoker will A. Develop shortness in breath B. Regain their senses of smell and taste C. Lose circulation in their hands and feet D. Develop rapid Heart beats**

50. ## math

F(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps. I honestly have no idea how to do this. Can someone please explain what I have to do?

51. ## Math

I have a moving truck that gets 12 klms per gallon how car would you go on a 40g tank

52. ## science

When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........

53. ## Health

What is the trachea commonly called? A. Voice box B. Vocal cord C. Windflute D. Windpipe A? i don't get this please HELP ME!!!

54. ## Chemistry

We did a titration of calcium hydroxide lab in chemistry, once with and once with edta, we have to calculate the solubility for both, and the ksp, for the hcl I did (concentration)*(Volume of hcl used) then that answer divided by two divided by the amount

55. ## Science

using the equation c3h5+5o2=3co2+4h2o, calculate the mass of c3h8 that can produce 100g of h2o

56. ## world history pls pls help help

What caused the downfall of Ghana? a) Climate change and Berber battles b) Songhai invasions and disease c) Internal revolts d) Depletion of the salt mines is it b or c

57. ## Math

If a punch recipe contains 40% of ginger-ale 25% of Orange Juice 20% of pineapple juice does 15% of sorbet how many cups of sugar are used in 8 cups of punch

58. ## chemistry

Suppose that the microwave radiation has a wavelength of 12 cm . How many photons are required to heat 255 mL of coffee from 25.0 ∘C to 62.0 ∘C? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g⋅K) , as

59. ## math

As dry air moves upward, it expands and in so doing cools at a rate of about 10C for 100m rise, up to about 12 km. a) If the ground temperature is 220, write a formula for the temperature at height x km. b) What range of temperature can be expected if a

61. ## physics

find the angle of projection at the horizontal range is twice the maximum height of a projecyile

62. ## ELA

WHAT TYPE OF WRITING IS THIS (pick on of these:cause&effect,compare&contrast,sequence,chronological order,problem&solution,descriptive) Volcanoes are a feared and destructive force for good reason. A volcano is like a pressure valve for the inner earth,

63. ## chemistry

at certain altitude in the upper atmosphere, the temperature is estimated to be -100 degree celsius and the density just 10^-9 that of the earth's atmosphere at STP. Assuming a uniform atmosphere at STP. Assuming a uniform atmospheric composition, what is

64. ## Calculus Related Rates

A balloon, 50 feet from an observer, is rising at 20 ft/sec. At 5 seconds after lift off 1. How fast is the distance between the observer and the balloon changing? 2. How fast is the angle of elevation changing? I need help on both questions. Thanks in

65. ## algebra

a class recorded the number of movies that each student watched during the summer. draw a histogram to accuratley display this data.

66. ## Physics

A uniform disk with mass 6 kg and radius 1.8 m is pivoted at its center about a horizontal, frictionless axle that is stationary. The disk is initially at rest, and then a constant force 31.5N is applied to the rim of the disk. The force direction makes an

91. ## Trigonometric Identities

Verify/prove that: sinAcosA/1-cosA = sin^2/tanA-sinA

92. ## Trigonometric Identities

Verify/prove that: (cotA+cotB)/(tanA+tanB)+(1-cotAcotB)/(1-tanAtanB) = 0

93. ## Health ASAP HELP

Hey. My mom is grilling me to get this test done. Please help. Some of the chemicals in tobacco products cause cancer. These products are called... (1 point) A. Carcinogens B. Stimulants*** C. Nicotine substitutes D. Cessation devices

94. ## Social studies

What was the impact of the New Deal programs on Georgians? Can anyone give me a link to help me?

Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

96. ## Health

In addition to the urinary tract, what is considered an excretory organ? A. Heart B. Skin C. Larynx D. Muscles C?

97. ## Algebra

Find ALL triples of positive numbers c

98. ## Math

How many bags of fertilizer would I need to cover 1.68 acres

99. ## Physics

A concrete slab of mass 400 kg accelerates down a concrete slop inclined at 35degree. The kenetic friction b/n the slab and slope is 0.60.Determine the acceleration of block.

one of the roots of the quadratic equation x^2-(4+k)x+12=0 fine, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.

101. ## Trigonometric Identities

Verify/prove the following: (sinA+tanA)/(1+secA) = sinA ______________________________ tanu = 1+sinu-cos^2u/cosu(1+sinu) __________________________________ cotu = (2+cscu/secu)-2cosu ______________________________ tanAsinA/tanA+sinA = tanA-sinA/tanAsinA

102. ## Health

The food molecules that cannot be ________ need to be eliminated from the body. A. Ingested B. Digested C. Regurgitated D. All of the above A? plz help don't get this quiestion

103. ## math

a student’s grade in a class is simply the mean of five 100-point exams a. If the student has grades of 77, 73, 97, and 89 on the first four exams, what is the students’ grade before taking the last exam? b. What is the lowest score that the student

104. ## Social studies

Why were military and the defense industry important to Georgia? I'm not sure?

105. ## science

how does the weight placement in a rocket effect the distance

106. ## math

how to right this in scientific in scientific notation. (2.74×10^7)+(5.6×10^7)=

107. ## physics

A 13 gram sample of an unknown metal at 26.5°C is placed in a Styrofoam cup containing 50.0 grams of water at 88.6°C. The water cools down and the metal warms up until thermal equilibrium is achieved at 87.1°C. A 10 percent of heat lost by water is

108. ## Algebra

What is the GCF of the terms of 8c^3+12c^2+10c ? I am confused between 2 and 2c. Which one is it?

109. ## Math

Using Normal Tables, Find The Probabilities Of P( -1.50 < Z < 2.50)

110. ## Physics

Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.

111. ## Microeconomics

You are asked to examine the market for luxury housing in the southern Westchester town of Quietville. This kind of housing is said to be a normal good. In Quietville a substantial proportion of the people who buy luxury homes are people who work in the

112. ## biochem'

A flask contains 300 ml of 0.4M NaCl. ¿How many moles of NaCl are in 15ml?

113. ## Algebra

There is a circular garden in the middle of a square yard. The radius of the circle is 4x. The side length of the yard is 20. what is the area of the part of the yard that is not covered by the circle? a. 4x(5) b. 8x^2(5-pi) c. 16x(25+pi) d.

Poets use imagery and words with different connotations and denotations. In a paragraph, define and provide an example of imagery, connotation, and denotation. Then, explain how poets use these elements to contribute to tone in a poem. Support your answer

115. ## MATH

NEED HELP WITH THIS THANKS!!!TOGETHER, RYAN AND MAX HAD 195 BASEBALL CARDS. ONCE MAX GAVE 3/8 OF HIS CARDS TO ANOTHER FRIEND, HE AND RYAN HAD AN EQUAL NUMBER OF CARDS. HOW MANY MORE CARDS DID MAX HAVE THAN RYAN IN THE BEGINNING?

116. ## Chemistry

You start with a 20ml mixture of two compounds. After distillation you end up with 10ml of distillate 1 and 8.4ml of distillate 2. What is the relative volume percent of each compound in the pre-distilled mixture? (Do I just do: volume percent of

117. ## Math

please show me how to do this... A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work. Sn: 12 + 42 + 72 + . . . + (3n - 2)2 = n(6n^2-3n-1)/2 Also, please show

118. ## Physics

A 313 μF defibrillator capacitor is charged to 4.94×103 V. When fired through a patients chest, it loses 95 % of its charge in 40 ms. What is the resistance of the patients chest?

119. ## English

In Romeo and Juliet, why doesn't Juliet want to marry Paris? 1: She is already married 2: She is in love with Romeo 3:Paris hasn't won her affection 4:All of the above I'm torn between 2 and 4..please help. I know she is married at the end of act II, but I

120. ## math

Syntax error from line 1 column 53 to line 1 column 60. Unexpected '0'. expressed as the quotient of two integers in simplest form? I don't know?

121. ## Calc/Physics

Find the following questions at the depth of 25\text{m}. The gravitational acceleration is g = 9.8\text{m/s}^2 and the density of water is \rho = 1000\text{kg/m}^3. a. Find the hydrostatic force on a square steel plate with sides 2\text{m} placed

122. ## physical chemistry

the rate constant for a reaction at 30 degrees is found to be exactly twice the value at 20 degrees. calculate the activation energy

123. ## Chemistry

Why does a compound with a high vapor pressure boil at a lower temperature than a compound with a lower vapor pressure?

124. ## math

Mrs coombs have 10 kids and need to split 5/8 of bacon

125. ## Chemistry

List three ways in which the yield of ammonia in the reaction above can be improved for a given amount of H2.

126. ## Math

y-6¡Ý12 Solve this pleae.

127. ## Maths

How to convert 13million to scientific notation?

Multiple choice (show your work if any): 1) Two point charges q1=-10^-5 C and q2=-9×10^-5 C are placed respectively at two points A and B 40 cm apart. The electric field is null at a point C of [AB] such that : a) AC=50cm b) AC=10cm c) AC=20cm d) point C

129. ## English

In a classic tragedy what causes the downfall or destruction of the hero? A: The actions of the antagonist or villain? B: The hero's nobility and royal bloodline? C: The hero's personal defect in their lives? I pick c is this correct..thank you

130. ## math

Mrs Carter class has 30 kids and need to split 7/8 slices of bacon

131. ## english

This question is based on the following passage, which contains some errors. The sentences are numbered to help you answer the question. (1) As soon as Loraine arrived in town, she phoned Dee. (2) However Dee was not home. (3) Discouraged, by this Loraine

132. ## math

Five runners are entered in a race. Assuming there are no ties, in how many different ways can first and second places be awarded?

133. ## English

In Romeo and Juliet, why doesn't Juliet want to marry Paris? A: She is all ready married B: She is in love with Romeo C: Paris hasn't won her affection D: All of the above I'm torn between B and D. Please help...this paper has been haunting me...I need to

134. ## Health

If you don't like another person's qualities it is best not to spend time with them? True False I think it is true...Is this correct?

one of the roots of the quadratic equation x^2-(4+k)x+12=0 find, 1)the roots of the equation 2)the possible values of k please show your workings thanks in advance.

136. ## math

Mrs Carter class is having a pizza party and have 15 kids and need to split 5/8 of pepperoni

137. ## math

The cloth has an area of 20 square feet. What could be the dimensions of the piece of cloth?

138. ## Health

Why does the blood returning to the heart have very little oxygen in it? A. The heart is not pumping oxygen fast enough . B. The cells throughout the body use the oxygen .

139. ## Health

Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs. A. 5 to 7 seconds B. 3 to 5 seconds C. 1 to 3 seconds D. 7 to 9 seconds B?

140. ## life orientation

identify three courses or study fields

141. ## Health

Which organ is part of both the respiratory system in the digestive system? A. Epiglottis B. Nose C. Larynx

142. ## Biology

Number of ATP by oxidative phosphorylation from a 24 carbon fatty acid? I have 96 because fatty acids go to CoA (2ATP) and the Krebs (22ATP). Glucose has 6C and so you add 2+22ATP and multiply by 4 to get 96. Is this right? If not, how do I figure this

143. ## physics

After placing a 0.500 m dent in the landlords van, the two management students are told they and their 200 daN beer freezer have to go. The new ramp is inclined at an angle of 32.1 o relative to the horizontal. The coefficient of static friction between

144. ## physics

Women and overweight people often experience backpain. Let us explore the reason for this. Assume the women has a weight of 60.0 daN before pregnancy. Suppose she gains 10.0 daN during pregnancy, due to weight of the fetus, placenta, amniotic fluid, etc.

145. ## math

In Mrs.Marshall's classroom, 6/7 of the students play sports. Of the students who play sports, 4/5 also play an instrument. If there are 35 in her class how many play sports and an instrument?

146. ## Language Art's HELP ASAP!

12.)Which of these strategies would be most effective in helping conclusions about characters in a play? A.)Trying to picture each character's costumes B.)Focusing on one character's lines in particular C.)Observing characters' interactions with one

147. ## Health

Which profession should a person who suffers from chronic asthma probably stay away from? A. Criminal attorney

148. ## English

In Act II we see Friar Lawrence dealing with herbs and flowers and talking about their chemical properties. This is what literary device? 1:Simile 2:Foreshadowing 3:Personification My answer is foreshadowing..is this correct? Thank you

149. ## English

Shakespeare is known for writing in what style? 1: Prose 2:Lambic Pentameter 3: Parliament My pick is #2 is this correct?

150. ## solomon mahlangu high

Identify three courses or study fields you are interested in following after grade12 write them down in order of preference

151. ## history

list a emotional, and social benefit of physical activity

152. ## probability theory

in how many ways could a band of singers and 5 drummers be selected from 4 singers and 6 drummers.of a band of 7 members are to be selected from a team of 4 singers and 6 drummers.find the probability of including 2 singers

153. ## English

Sonnet 130 by Shakespeare My mistress’ eyes are nothing like the sun; Coral is far more red than her lips’ red; If snow be white, why then her breasts are dun; If hairs be wires, black wires grow on her head. I have seen roses damask’d, red and

154. ## Physics

What amount of energy is needed to change 1 kg of O degrees Celsius ice to 10 degrees Celsius water?

155. ## physics

A 313 μF defibrillator capacitor is charged to 4.94×103 V. When fired through a patients chest, it loses 95 % of its charge in 40 ms. What is the resistance of the patients chest?

156. ## Math

Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and

157. ## ratios/algebra

During class elections 64 students voted for candidate A .if the ratio of votes for candidate a is to the votes for candidate B was 8:5,how many votes did candidate B receive?

158. ## Physics HW Plz help

What is the frequency of a blue light with a wavelength of 487nm?

Read the following paragraph and answer the question that follows: Musical theatre changed my life. When I was a child, I was always a problem for my parents. I never wanted to go to school, study my homework, or do my chores. No one knew how to control

160. ## child development

Activity I can do for Intasc Standard 3: Learning Environment and for Intasc Standard 2- Learning Difference For #2 I did "Identifying Colors."(Bananas are yellow, cherries are red) what can i do for #3

161. ## physics 11th class

Calculate the power of a crane in watts which lifts a man of 100kg to a height of 10m in 20sec

162. ## Health

The ________is about the size of a walnut and encircles the urethra as it leaves the urinary bladder. A. Testis B. Gonad C. Thyroid gland D. Prostate gland D?

163. ## Drama

[Piedmont, later that day outside the stable...] What does this line tell the reader? a. which character are onstage **?? b. where and when the scene takes place c. how the characters are to act d. whether this is a comedy or tragedy

164. ## Geometry

Triangle ABC and

165. ## math

Eben rolls two standard number cubes 36 times. Predict how many times he will roll a sum of 4.

166. ## Maths

20 pupils,8 males, 3 males wear glasses whats the probability that the first student is mals and wears glasses?

167. ## Geometry

Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains, leave the station at the same time, after

168. ## math

A T-Rex has two children. Their ages are consecutive integers that total 33. How old are they both?

169. ## math

Luis draws 1 card from a deck, 39 times. Predict how many times he draws an ace. John and O'Neal are playing a board game in which they roll two number cubes. John needs to get a sum of 8 on the number cubes to win. O'Neal needs a sum of 11, if they take

170. ## Math

Arrange these numbers from least to greatest: 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3. A. 2 over 5 comma text end text − 3 over 7 comma text end text 2 over 3 B. − 3 over 7 comma text end text 2 over 5 comma text end text

171. ## Biology

How much ATP energy would you get from a tripeptide that, upon hydrolysis and deamination, makes two acetyl CoA and one pyruvate molecule and undergo aerobic respiration?

172. ## Science Experiment Help (pt 2)

did the experiment (correctly this time), still need help with the answer to this question: What other mixture can be separated by crystallization? thnx for the help!

173. ## English

In classical tragedy what causes the downfall or destruction of the hero? 1: The actions of the antagonist or villain 2:The hero's nobility and royal bloodline 3: The hero's personal defect in their lives My choice is #2 is this correct?

174. ## Language

of these sentences is using appositive phrase correctly? a. The Grand Canal, which is the oldest man-made waterway in the world, is still used today in China.•• b. The Grand Canal in China is a man-made waterway, still used, that is the oldest in the

175. ## Health

What does estrogen promote? A. Development of testes B. Development of breasts C. Development of lips D. All of the above i don't know this one

176. ## Math

How many possible lunch combinations can I choose from with 12 meats, 20 side items, 7desserts, and 8 drinks?

177. ## math

The ratio of cats to dogs at jazzy Jen's pet store is 3 to 5 .If there are 24 animals at the pet store,how many of them are cats?

178. ## Working with children with special needs

A teacher wants to know why Ben, a preschooler, wakes up every morning at about 3:00 and refuses to go back to sleep. The teacher should

179. ## MATH

1. What data are represented by the stem-and-leaf plot below? 3 | 7 8 9 4 | 1 3 7 5 | 2 4 Key: 4 | 1 means 41 a. 37, 38, 39, 41, 43, 47, 52, 54 b. 73, 83, 93, 14, 34, 74, 25, 45 c. 7, 8, 9, 1, 3, 7, 2, 4 d. 37, 38, 39, 14, 34, 74, 25, 45 2. Find the mode

180. ## Math (geometry)

Earth's diameter at the equator is about 7926 miles. A jet flies 550 miles per hour. How long would it take the jet to fly halfway around the equator?

181. ## English

What's your personality? What are you like? 1. I'm kind of introverted. 2. I'm kind of introvert. 3. I'm kind of introvertish. 4. I'm kind of extroverted. 5. I'm kind of extrovert. ----------------- Are the answers all grammatical? Which ones are commonly

In orders to study law at bloemfontein university how many points should I get

183. ## Math

How many groups of 2/3 are in 2?

184. ## Math

A three-digit integer has been divided by 9. As a result, the sum of the digits decrease by 9. How many three-digit numbers possess this property?

185. ## Math

Given a number, a strange calculator can only do the following: multiply it by 2 or by 3, or to raise it to the power 2 or 3. Starting with the number 15, what can be obtained by applying this calculator 5 times consecutively? A) 2^8 . 3^5 . 5^6 B) 2^8 .

205. ## Chemistry-DrBob222

Where did you get 5E-5. Is this how you set it up? 0.01 x 0.05 = 5E-4 If so, is it supposed to be 5E-4 instead of 5E-5? What is the equilibrium constant for a weak acid HA that dissociates 1% at an initial concentration of 0.05 M according to the following

206. ## calculus

Find the radius of the base and altitude of a right circular cone of maximum volume that could be inscribed in a sphere at radius 10 meters.

207. ## Chemistry

What is the mass of Na2SO4 is needed to make 1.5 L of 3.0 M solution? Na=23 g.: s = 32 g: O=16g.)

208. ## Calculus

Use the integral identity: ∫(a-1) (1/(1+x^2))dx=∫(1-1/a) (1/(1+u^2))du for a>1 to show that: arctan(a)+arctan(1/a)=π/2

209. ## Geometry

Two model trains begin at the toy train station and travel continuously on two circular tracks of equal length. The first train completes a circuit in 20 seconds and the second train in 15 seconds. If both trains leave the station at the same time, after

210. ## Chemistry-DrBob222

Is the answer for part c 0.91? A 1.0 L ball containing Ar at 5 atm is connected to a 10.0 L ball containing N2 at 2atm. A)Calculate the partial pressures and mole fractions of Ar and N2 after the valve is opened and the gases are allowed to mix (they fill

211. ## Pre-Calc

If tan theta equal - square root of 22 divided by 11 and pie/2 is less than theta and theta is less than pies, what is the cos of theta in simplified rationalized form

212. ## Chemistry-DrBob222

I got an answer of -1.34 x 10^3 KJ/mol. A 10.00 mL aliquot of 0.100 M NaOH is added to 15.00 mL of 0.100M HCl in a coffee cup calorimeter. The initial temperature of the two dilute liquids were both 25.0 degrees C and the final temperature of the mixture

213. ## Happy Pi Day, 2016

http://abcnews.go.com/Technology/pi-day-2016-extra-special/story?id=37630134

214. ## physics

When the ray of light travels from air to glass slab and strikes the surface of separation at 90 degree , then it ..........