# Questions Asked onNovember 16, 2015

1. ## word problem math

Dixon and his little sister Ariadne stand next to each other on the playground on a sunny afternoon. Their mother measures their shadows. Dixon's shadow is 18 feet long and Ariadne's shadow is 15 feet long. If Dixon is 6 feet tall, how tall is Ariadne?

2. ## chem

Rank the following elements by electron affinity, from most positive to most negative EA value. Rank from most positive to most negative. To rank items as equivalent, overlap them. argon,sodium,iodine,oxygen,phosphorus

3. ## 7th Grade Math Help

It takes Pam 45 minutes to drive to work and 60 minutes to drive home from work. Write the ratio of the time Pam spends driving home from work to the time she spends driving to work in three ways. I got confused so I need someone to help me clear-up my

4. ## Chemistry

State the kind of intermolecular forces that would occur between the solute and solvent in barium nitrate (ionic). Check all that apply. ion-dipole hydrogen bonding dispersion dipole-dipole

5. ## algebra help!

8) While eating in the cafeteria at school, 65%, or 26, of the students in the class ate pizza. find the number of students in the entire class. My guess is 17 students?? PlZ Help!

6. ## math

The area of a square floor on a scale drawing is 100 square centimeters and the scale of the drawing is 1 centimeter:2ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area?

7. ## Physics

A ball rolls over the edge of a table with a horizontal velocity v m/s. the height of the table is 2.1m and the horizontal range of the ball from the base of the table is 16m. What is the initial speed of the ball?

8. ## Social Studies Check my answers!

20. Which best describes the connection the French and Indian War had with the American Revolution? A. As a result of the French and Indian War, France occupied numerous areas under English control. B. As a result of the French and Indian War, England

9. ## chemistry

Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2*9H2O

10. ## History

Which battle marked the turning point of the Civil War? 1. Gettysburg 2. Vicksburg 3. Antietam 4. Fort Pulaski 5. Fort Maria Which is it? I choose 1, am I correct?

11. ## Psychology

Hello, My question is: What could you perceive if you only had one type of photoreceptor? Brightness, colour, both, or neither? The answer that I came up with was: If you only had one type of photoreceptor you would not be able to perceive colour nor

12. ## math

Emily baked 3 batches of 13 sugar cookies each. She ate 2 of the cookies and gave 10 of them to her neighbor. In return, her neighbor gave her half of a batch of a dozen chocolate chip cookies. How many cookies does Emily have?

13. ## chemistry

The following reaction can be written as the sum of two reactions, one of which relates to ionization energy and one of which relates to electron affinity: Li(g)+F(g)→Li+(g)+F−(g) What is the reaction that corresponds to the first ionization energy of

14. ## History

How is reservation life least like life off the reservation? Reservations do not have public schools. Most people living on reservations are Native Americans.************ Only traditional architecture is permitted on most reservations. The federal

15. ## Health

1.Which is NOT a type of Psychotherapy used to treat mental disorders A. insight therapy B. Group Therapy (picked this one) C. Drug therapy D. Cognitive therapy 2.Which is NOT a health professional who treats mental and emotional disorders? A. Psychiatrist

16. ## Math

In science class, Savannah measures the temperature of a liquid to be 50^@ Celsius. Her teacher wants her to convert the temperature to degrees Fahrenheit. What is the temperature of Savannah's liquid to the nearest degree Fahrenheit?

17. ## Language Arts

"Type a paragraph in which you use at least two linking commas, two semicolons, and one colon." Does the paragraph below match the criteria above? My dog, Bruno, is absolutely amazing; he's so many things for a one year old Miniature Pinscher: funny,

1) Which of the following is not a function of the human nervous system? A. regulating heartbeat B. listening to music C. moving oxygen from air into the blood D. signaling the diaphragm to contract 2) An external event stimulates a sensory nerve, which

19. ## Physics

A chameleon extends its tongue to capture a tasty insect. The tongue accelerates at 33 m/s2 for 0.12 seconds to make the capture. what is the speed of the chameleons tongue when it grabs the insect?

20. ## physics

70-kg man jumps off a raft 2 meter squared moored in a freshwater lake. By how much does the raft rise?

21. ## Math

The top and bottom margins of a poster are 6 cm and the side margins are each 7 cm. If the area of printed material on the poster is fixed at 384 square centimeters, find the dimensions of the poster with the smallest area.

22. ## History

Which of the following is not a way that constitutions grant governments power? A)They explain the purpose of the government. B)They set up the structure of the government. C)They identify from which states federal government leaders will come. D)They name

23. ## Math

The ratio of the quantities of sugar and flour needed to bake a cake is 2:5. What is the quantity of sugar needed for a cake, if 750 grams of flour are used to make it?

24. ## math

A cyclist travels for 60km at x km/h and 180km at y km/h and takes 10 hours altogether for the journey. If the speed are interchange, the journey takes 8.6 (8 whole number 2 over 3) hours. Find x and y.

25. ## Duplessiss primary

Mollys photo album has a total of 97 pictures.each page of the album holds 6 pictures.how many pages can molly fill will there be any pictures left if so,how many use a place value chart using disk to solve.

26. ## Calc

A stone dropped into a still pond sends out a circular ripple whose radius increases at a constant rate of 2.6 ft/s. (a) How rapidly is the area enclosed by the ripple increasing when the radius is 4 feet? The area is increasing at

27. ## Math

Which of the following is the best estimate for the total weight of these cold meats: 1 and seven eights pounds of Bologna, one and a half pounds of ham, and seven eights pound of roast beef? How would I add these fractions? Please help

28. ## Math

Estimate using a rate per 100 19% of 288 =

29. ## History

How is Dante's work different from earlier Medieval literature and why do we still refer to Dante as a Medieval writer?

30. ## Algebra

At the market, a pear costs b cents and an apple costs 7 cents less than a pear. Randy buys 4 pears and an apple. How much does Randy pay in terms of b?

46. ## biology

state one reason why the concentration of glucose in the blood decreases.

47. ## Social Studies

Which of the following statements gives an opinion? New Mexico has a large Hispanic population.********* Undocumented immigrants in New Mexico should have equal rights with documented immigrants. New Mexico's legislature passed a resolution stating its

48. ## Biology

state one reason why the concentration of glucose in the blood increases.

49. ## Biology

What is the overall chemical formula for photosynthsis? 6Co2+6H2O--->C6H12O6+6O2 Where does the energy come from in photosynthesis? From Sunlight? What is the relationship between photosynthesis and respiration Photosynthesis makes the glucose that is used

50. ## Math

Jeremy has two 7 foot~ long boards. What is the greatest number og 15 inch pieces can he cut from the two boards?

51. ## math

the square tile shown has a length of 10.5 inches. What power can you write to represent the are of the tile? Write the power as an expression with a base and an exponent, and then find the area of the square.

52. ## Physics

The interior of a submarine located at a depth of 50 m in seawater is maintained at sea-level atmospheric pressure. Find the force acting on a window 20 cm square. The density of seawater is 1.03 × 103 kg/m3

53. ## English

1. I am too tired to do my homework. 2. I am too tired to read the books. 3. I am too tired to do the project. 4. I am too tired to do the paperwork. 5. I am too tired to finish my homework. 6. I am too tired to finish reading the book. ============ Are

54. ## Chemistry

Experimental results for hydrochloric acid (neutralization) are always a little less negative than the usual constant (-57.35kJ). Suggest reasons for this.

55. ## chemistry

Which is the correct expression for Keq when the chemical reaction is as follows: N2 + 3H2 2NH3.

56. ## Chemistry

A 22.6 mL sample of a weak monoprotic acid, HX, requires 50.0 mL of 0.050 M NaOH to reach the equivalence point. After the addition of 30.0 mL of NaOH, the pH is 4.90. What is the Ka of HX?

69. ## Math

A metal solid cylinder of radius 6 cm and length 12 cm is ,melted and recast into another solid cylinder of length 3 cm. A. Find the base radius of the new cylinder. B. Find the change in total surface area in terms of 3.14.

70. ## Chemistry (Check)

The bond strengths of the compounds HF, HCl, HBr, and HI are as follows: compound bond strength, kJ/mol HF 569.87 HCl 431.62 HBr 366.35 HI 298.407 Briefly explain why the bond strengths are ranked in this order. My guess is: They are ranked in this order

71. ## Math

Janet wants to put 45 sunflower seeds, 81 tomato plants, and 63 corn stalks in her garden for the following season. If she puts the same number of plants in each row and if each row only has one type of plant, what is the greatest number of plants that

72. ## PHYSICS

A dentist's chair with a patient in it weighs 2180 N. The output plunger of a hydraulic system begins to lift the chair, when the dentist's foot applies a force of 73.6 N to the input piston. Neglect any height difference between the plunger and the

73. ## algebra

Write a quadratic equation with roots of 4 + 3i and 4 – 3i. Show all your work.

74. ## maths

there are 20 apples and 15 oranges in a bin.if some apples are removed from the bin so that the probability of randomly drawing an apple becomes 2/5.how many apples must be removed from the bin

75. ## physics

If a standing wave with 10 antinodes occurs at a frequency of 44.1 Hz, at what frequency would you look for the n = 2 standing wave?

76. ## Math

1. There are 20 guests at a party. The host has 8 gallons of punch. He estimates that each will drink 2 cups of punch. If this estimate is correct, how much punch will be left over at the end of the party? 2. A typical lap around a track in the United

77. ## english

15. Suppose the following sentence appears in the sports section of the newspaper: Lorton's experienced linemen performed well in handing Jefferson High's Eagles a crushing defeat. What word in the sentence is most clearly a loaded word? A. Experienced B.

78. ## Math

the perimeter of a rectangular garder is 100 feet the length of the garden is 8 feet longer than twice the width I need 2 linear equations

79. ## Physics

Suppose you measure a standing person's blood pressure by placing the cuff on his leg 0.580 m below the heart. Calculate the pressures you would observe if the pressures at the heart are 121 over 80 mm Hg. Assume there is no loss of pressure due to

80. ## Chemistry

Hydrocarbon burn in excess oxygen yields 4.4g of carbon(iv)oxide and 2 of 7g of water. Find the empirical formula of hydrocarbon

81. ## Math

Student A, B and C con complete a puzzle in 20 min, 15 min, and 30 min respectively. If all three student work together, how long will it take to complete the puzzle?

82. ## algebra

a swimming pool is 60 ft long and 35 ft wide. a model of the pool is 9 in long. how wide is the model

83. ## chemistry

at 25 celcius, how many dissociated OH ions are there in 8.0x10^-1 L of aqueous solution with pH 4.73?

84. ## Math

If the original building is 810 meters tall, what was the scale used to make the model?

85. ## chemistry

0.60g of a gaseous hydrocarbon E when completely burnt in oxygen gave 1.76g of carbon dioxide. WHAT IS THE EMPIRICAL FORMULA OF E?

86. ## science

a fighter plane dives straight down with an acceleration of 3g . what is the magnitude and direction of pilot's effective (or apparent) weight if his real weight is w?

87. ## algebra

The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.

88. ## physics

A 4 . 7 kg mass weighs 39 . 95 N on the surface of a planet similar to Earth. The radius of this planet is roughly 6 . 2 × 10 6 m. Calculate the mass of of this planet. The value of the universal gravitational constant is 6 . 67259 × 10 − 11 N · m 2 /

195. ## college algebra

reciprocal function of (3x-5)/(x-2)

2c-4x

197. ## English

Yosemite offers so much to see. Plan to stay awhile! There are more than 3,500 accommodations in Yosemite and its surrounding communities and gateways, each with something unique to offer. ==================== There are two Yosemites in this passage. What

198. ## algebra

the sum of 12 and twice my age

199. ## math

solve the inequality by first clearing the fraction 4/5>=2/3-2/7x

200. ## Social Studies

who was the commander of the forces that fired the first shot of the civil war

201. ## math

what is two divisible by

202. ## nothing

just wanted to say good luck with the school week and work week everybody.

203. ## math

-13x=-78 -6 6 -1,014 1,014 .....

204. ## math

R/9 = -4

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