isabella

Most popular questions and responses by isabella
1. Physics

During a baseball game, a batter hits a high pop- up. If the ball remains in the air for 6.0s, how high does it rise? Hint: calculate the height using the second half of the trajectory

2. science

Tom is marking the locations of active volcanoes on a world map. Explain how the locations of the volcanoes are related to Earths plates. can you please explain this to me, I don't understand....thx

3. Math

Using 6 as one of the numbers, write a fact family with only two facts. 6 x 7=42 42/7=6 Is correct my answer?

4. Algebra

Write an expression that is equal to 3x2 1/4

5. Algebra

The formula C = 5/9(F-32) can be used to convert Fahrenheit temperatures to Celsius temperatures. a. Gold is liquid for Celsius temperatures C such that 1063 degrees (less than or equal to) C < 2660 degrees. Find a comparable inequality for Fahrenheit

6. math

Manny makes dinner using 1 box pasta and 1 jar of sauce. If pasta is sold in packages of 6 boxes and sauce is sold in packages of 3 jars what is the least number of dinners that Manny can make without any leftovers?

7. Physics

1. How does displacement change with time for a falling object? How might you describe the mathematical relationship between the distance and time of a falling object? Explain the answer using your data, graphs, and kinematic equations.

8. CHEMISTRY

Hello there! I was wondering if you could check my answers for me? I was having trouble and I finally understand. 1. Indicate the oxidation number of carbon and sulfur in the following compounds. A) CO= +2 C) Na2CO3= +4 E) CH4= -4 G) SO2= +4 I) Na2SO4= +6

9. chem-Am I Right????

For 0.10 M ZnCl2 and 0.10 M KAl(SO4)2, find:? a) spectator ions (if any) b) ions expected to hydrolyze (if any) c) net ionic equation for hydrolysis d) expression for equilibrium constant (Ka or Kb) e) value of Ka or Kb My answers are: a) Cl- ; K+ ; SO4^2-

10. Math

Addison is making caramel apples. She has 2 1/2 bags of apples. One full bag has 8 apples, and each apple weighs 5 ounces. Write an expression that could be used to find the total number of ounces of apples Addison has. Then find the total number of

11. Social Studies

"Explain how transportation innovations of the time period affected migration in the U.S" This question is really confusing to me and I need help wording it :-)

12. math

use the number 913,256 write the name of the period that has the digits 913

13. Calculus

Use a Linear Approximation to estimate sin(64∘)−sin(60∘)≈

14. math

A rectangular park has an area of 6 square miles. The width of the property is 3/8 the length of the property. What is the width of the property?

15. Algebra

A restaurant bill of \$2.85 was paid using quarters and dimes only. If twice the number of quarters is 6 less than 4 times the number of dimes, how many quarters were used?

16. geometry

The endpoints of line segment MN are M (-3,-9) and N (4,8). What is the approximate length of line segment MN??

17. Chemistry

Hello there! I was wondering if you could check my answers for me? I was having trouble and I finally understand. 1. Indicate the oxidation number of carbon and sulfur in the following compounds. A) CO= +2 C) Na2CO3= +4 E) CH4= -4 G) SO2= +4 I) Na2SO4= +6

Can you please tell me the roster form and set-builder notation for: N is the set of real numbers that are factors of 12

19. math

An equation is shown below: 3 over 2 multiplied by x plus 7 over 2 equals 2 to the power of x What is the solution to the equation A.X=1 B.X=3 C.X=5 D.X=8 I think it could be d

20. English

Reread the following paragraphs from King's letter, paying attention to the way that he structures his ideas: Paragraph 2 of 12 In any nonviolent campaign there are four basic steps: (1) Collection of the facts to determine whether injustices are alive;

21. Math

Which is greater: three sets of (5 - 2) or two sets of (2 + 3)? Draw diagrams to support your conclusion.

22. Math

Multiplication is defined as repeated addition. Use the word repeated to define exponential form. Justify your reasoning.

23. physics

A 0.2 kg sponge is dropped from rest , pulled down by gravity. How fast will it be traveling in 6.0s , if a 0.5 N force of air resistance acts on it

24. Math

a truck can be rented from company A for \$100 a day plus \$0.60 per mile and company B charges \$50 a day plus \$0.80 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for company A and B are the same.

25. Math

He said it to his brothers he said it to his sisters what did the witty raindrop exclaim to all the others??????

26. English

How does Hamlin Garland's "The Return of a Private" exemplify the characteristics of regionalism?

27. Math

how to explain to my child this math problem : davia draws a shape with 5 sides .Two sides are each 5 inches long . Two other sides are 4 inches long.The perimeter of the shape is 27 inches . What is the length of the fifth side?

28. Calculus

A conical tank has height 3 m and radius 2 m at the top. Water flows in at a rate of 1.8m^3/min. How fast is the water level rising when it is 2.7 m?

29. Biology

What type of cell does our brain use to control muscle movement? A)sensory neurons B)retinas C)synapses D)motor neurons I think the answer is D, but I'm not 100% sure.

30. math

A race car has a top speed of 330 km/hr. What speed is that in miles/sec?

31. math

write a subtraction problem that has a difference of 1/6.

32. Chemistry

Data Electrodes: V Electrolyte: V(NO3)2 Amps: 6.0 Time (mins): 800 1. Calculate the charge in coulombs that passes through the cell during electrolysis. 2. What is the anode and cathode reaction of this cell? 3. Calculate the mass of metal deposited on the

33. US History

18. Which U.S. president made the following proposal? "A general association of nations must be formed under specific covenants for the purpose of affording mutual guarantees of political independence and territorial integrity to great and small states

34. Algebra 1

A football team has three 15-yard penalties. What real number describes the change in yardage from these penalties?

35. Álgebra

Matt cut a circle into 8 equal sections. He drew an angle that measures the same as the total measure of 3 of the sections in the circle. What is the measure of the angle Matt drew?

36. Math

Will, Micah, and Sue went to dinner. Will paid 1/3 of the dinner bill. Micah and Sue paid in the ratio 2:5. If Sue paid \$6 more than will, how much di the dinner cost?

37. math

Writing to Explain If you know that 7 x 8 =56, how can you use the Commutative Property of Multiplication to find the product of 8 x 7?

38. Math

Find the 8th term of an exponential sequence whose first term is 3 and whose common ratio is 2

39. chemistry

To make a phosphorus fertilizer, agricultural companies use the following reaction: Ca3P2O8 + 2H2SO4 --> CaH4P2O8 + 2CaH4SO6 (fertilizer) If 1.50 * 10^4 grams of H2SO4 are reacted with excess Ca3P2O8 and H2O, how many grams of fertilizer can be made? Hi, I

40. utah state history

Please help Fill in the blank 1.The (blank) settlers were the first ones to develop agricultural practices that were adapted to the arid west. 2.The invention of the (blank) made it possible for farmers to farm much bigger plots of land. 3.The practice of

41. math

everyday when lisa returns from school she puts her change from buying lunch into a jar on her hair dresser. this weekend she decided to count her savings. she found that she had 72 coins all nickels and dimes. the total amount was \$4.95. how many coins of

42. physics

A block of wood of mass 6.0 kg slides along a skating rink at 12.5 m/s^2 [w] . The block slides onto a rough section of ice that exerts a force of 30 N force of friction on the block of wood. The acceleration of the block of wood is 5.0 m/s^2 [E] and it

43. Physics

1. How does displacement change with time for a falling object? How might you describe the mathematical relationship between the distance and time of a falling object?

44. math

How many 1/4 pound burgers can be made from 2 1/2 pounds of beef?

45. physics

A fully loaded Saturn V rocket has a mass of 2.92*10^6. Its engines have a thrust of 3.34*10^7 N What is the unbalanced force of gravity on the rocket at blast off What is the unbalanced force on the rocket at blast off

46. Social Studies

What is the national bird of Cameroon?

47. Chemistry

2C10H22 + 31O2 = 20Co2 + 22H2O What kind of reaction is this?

48. Physics

1. A steam engine converts 150 kg of water completely to steam. The process involves transfer of 4 x 10^8 J as heat. If steam escaping through the safety valve does 2 x 10^8 J of work against outside atmosphere, the net change in the internal energy is: a.

49. language

what is the literary device used in the statement? former indonesian president suharto was sometimes referred to as a puppet master.

50. Home Economics

1. How can disposal of fullness be done on the sleeve head?

51. chemistry

Calculate the mass of ethanol that must be burnt to increase the temperature of 150g of water by 75 degrees celsius, if exactly 75% of the heat released by this combustion is lost to the surroundings. Also it is given that the heat of combustion of ethanol

52. Math

a truck can be rented from company a for 100 a day plus 0.60 per mile and company b charges 50 a day plus 0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and b are the same. Please answer in

53. Help!!!

An electric field of intensity 4.27 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true. (a) The plane is parallel to the yz-plane. (b) The plane is

54. math

Karen says, "When I have a factor with exactly 2 zeros at the end, my answer will always have 2 zero at the end." Do you agree? Explain. Thanks

55. Algebra 1

Find all values of k so each trinomial can be factored using integers. 3s^2 +ks - 14

56. utah state history

fill in the blank 1.The (blank) settlers were the first ones to develop agricultural practices that were adapted to the arid west. 2.The invention of the (blank) made it possible for farmers to farm much bigger plots of land. 3.The practice of (blank) made

57. physics

You are driving down the road and hit a bump which causes your fishing tackle box to bounce out of the bed of your pickup. The box decelerates at a rate of 3 m/s¶ and skids 24 meters before coming to a stop. How fast were you traveling when the box fell

58. math

how many different rectangles have an area of 5 square units?

59. physics!!!

An electric field of intensity 4.27 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true. (a) The plane is parallel to the yz-plane. (b) The plane is

60. Spanish

Enter the correct conjugation of the "-ar" verb for each sentence: 1. Tú y yo _____ cuadernos nuevos. (necesitar) 2. ¿_____ ustedes los nombres de mis amigos? (olvidar) 3. Nicolás _____ un regalo a su abuela. (presenter) 4. Yo _____ a Dios. (alabar)

61. algebra

Find the pattern and fill in the missing entries. in(x) | out(y) | 23 2 | 8 -2 | -4 8 | 26 0 | ? ? | 302 1.5 | ?

62. math

if sue has 27 coins in all, totaling 2.10, of only dimes and nickels, and there are more dimes, how many more dimes than nickels does she have?

63. math

Helga's summer job put her in charge of the local soccer and basketball programs. To get ready, she ordered 50 balls, making sure there were 10 more soccer balls than basketballs.

64. physics

A block of wood of mass 6.0 kg slides along a skating rink at 12.5 m/s^2 [w] . The block slides onto a rough section of ice that exerts a force of 30 N force of friction on the block of wood. The acceleration of the block of wood is 5.0 m/s^2 [E] and it

65. physics

A certain string breaks when a force of 225 N is exerted on it. If two people pull on opposite ends of the string , each with a force of 175 N , will the string break? What actions reaction pairs of forces would be involved?

66. Math

Marty ate 1/4 of a pizza. Rob ate 1/5 of a pizza. How could Rob have eaten more pizza than Marty?

67. Social Studies

Document Based Question Essay Question: The debate over the extent of federal power with regard to the states dominated the political scene the first twenty years of the post-Revoluntionary War United States and would set the stage for future division

68. Calculus

Let f(x)=sqrt(x+2) and use the Linear Approximation to this function at a=14 with Δx=0.3 to estimate f(14.3)−f(14)=Δf≈df=

69. Math

Gabriel has read 150 pages of a 236 page book.If he reads 9 pages a day, in how many days will he finish the book?

70. Math

Celeste multiplied 44 x 5 =202. Is her product reasonable?Explain why or why not?

71. Algebra 1

Can anyone help me with this two-step equation: 10=0.3x-9.1

72. water vapor

When the weather is hot, and the inside of the house is cold, why do droplets of water form on the windows? Do they form on the outside or inside of the windows? Thanks. Water droplets form because of condensation. Here is a site that that talks about

73. English

Rewrite each of the following sentences so that related ideas are expressed in similar or parallel structures. 1.)People differ in their fingerprint patterns, in how they talk, and in their dental patterns. 2.)Computers are used to analyze voice patterns,

74. Math

Sandra was thinking of a quadrilateral. All 4 sides are the same length and are parallel. There are 4 right angles. Which quadrilateral is she thinking of?

75. AP United States History

Instructions: Use the following documents (most) and your knowledge of the period to answer the question. Question: Evaluate the following statement: "By the time of Abraham Lincoln's election in November of 1860, there was significant support in the North

76. math

q = 200 − 5 p What is the (instantaneous) rate of change of revenue with respect to price when the price is \$ 12? At what price is the derivative of revenue with respect to price exactly zero?

77. statistics

The weight of a product is normally distributed with a mean of 4 ounces and a variance of .25 "sq ounces." The company wants to classify the unit as a scrap in a maximum of 1% of the units if the weight is below a desired value. Determine the desired

78. Maths

Find the largest no that divides 630 and 940 leaving reminders 6 and 4 respectively

79. The Open Boat (Short Story)

Who is the narrator of The Open Boat? A) The oiler B) The captain C) The correspondent D) The cook I think it's the correspondent, but I'm not sure. Someone help, please?

80. Florida studies weekly

why can't we fnd many of the remains of the spanish missions in florida this period?

81. Calculus

For the function below, determine the intervals of concavity: f(x)=xlnx I tried doing it but the second derivative would always be f''(x)=1/x, so it would be concave up at x>0 and concave down at x

82. Math

Sara has some fish,2 birds, and 5 hamsters.she has 6 fewer hamsters than fish. How many fish does she have?

83. math

A cookie recipe calls for 2 1/4 cups of flour. If Gustavo wants to make 1 1/2 times the recipe, how much flour does he need? 2 1/4 + 1 1/2 9/4 + 3/2 * 2 9/4 + 6/4 = 15/4 = 3 3/4 Is correct?

84. Calculus..

5. Eliminate the parameter and write the corresponding rectangular equations: x=3-2sin theta and y=1+5 cos theta

85. Algebra 1

A beauty salon buys bottles of styling gel for \$4.50 per bottle and marks up the price by 40%. For what price does the salon sell each bottle?

86. algebra

The United States Department of Agriculture reported in Vegetables and Melons Outlook in 2007 that the average America consumes about 7.4 x 10^3 potato chips in a year. Since Idaho had about 1.5 x 10^6 people in 2007, how many potato chips would Idaho

87. Calculus

For the following function, find the relative max's or min's using any method. I'm having a hard time finding the critical points...

88. social studies

in which cultural region is Shreveport located ? a) cajun country b) crossroads c) plantation country d) sportsmans paradsise

89. physics

Using newtons third law of motion, and action reaction pairs explain the following situations A person with ordinary shoes is able to walk on a sidewalk A rocket accelerates in the vacuum of outer space Thanks for the help, any would be great!

A company is considering a \$250 million investment in land that it will hold for 25 years. The pretax net cash flows are \$40 million per year and land prices are expected to rise at a rate of 7% per year. The opportunity cost of capital is 13%, inflation

91. Maths

Find the largest no that divides 630 and 940 leaving reminders 6 and 4 respectively

92. Algebra

LS 154. Find the measure of angle x. Identify the two angles that form the larger angle. 2 Write a subtraction equation. Subtract to find the measure of x. The measure of x

93. math

please help im stuck 8. Use the function rule f(x) equals three x minus 2. Find the output f(one point 5). (1 point)2.5 –2.5 6.5 –6.5

94. social studies

1. Under which cultural element would zydeco be categorized ? a) religion b) food c) music d) dance What did the earliest festivals celebrate ? a) harvests b) music c) native foods d) religious ceremonies

95. math

To estimate how many more people live in Atherton than Needles, which is closer to exact answer: rounding to hundreds or thousands? Explain. Artherto 7,127 Needles 5,346

96. Earth/Space Science

Some scientists have hypothesized that meteorites have periodically bombarded Earth and caused mass extinctions every 26 million years. How might this hypothesis be tested?

97. Algebra 1

Two musical notes played at the same time produce harmony. The closest harmony is produced by frequencies with the greatest GCF. A,C,and C sharp have frequencies of 220,264,and 275, respectively. Which pair of these notes produces the closest harmony?

98. science

Describe the benefits of the human genome project.

99. Calculus Applied Integrals

A cylindrical tank of 22.1m high with radius 12.2m is filled to 10m high with water. How much work must be done to pump all the water out of the tank? (density of water is 1000\ kg/m^3) I used similar triangles somewhere in my calculations to find the