Sofia

Most popular questions and responses by Sofia
1. algebra - HELP

1. which solid has one base that is a rectangle and four lateral surfaces that are triangles? (1 point ) triangular pyramid ****** cone rectangular prism rectangular pyramid 2. Sarah needs to cover the lateral area and the base on top of the cylinder? ( 1

2. Calculus 1

You have 8L feet of fence to make a rectangular vegetable garden alongside the wall of your house, where L is a positive constant. The wall of the house bounds one side of the vegetable garden. What is the largest possible area for the vegetable garden?

3. chemistry

which of the following processes is more easily observable for light with a short wavelength? a. the photoelectric effect b. radio transmission c. diffraction d. interference

4. Math

How can you use rate to compare the costs of two boxes of cereal that are different sizes?

5. Chem

Your spaceship has docked at a space station above Mars. The temperature inside the space station is a carefully controlled 24 ∘C at a pressure of 745 mmHg. A balloon with a volume of 414 mL drifts into the airlock where the temperature is -95 ∘C and

6. geometry

Each base of an isosceles triangle measures 42 degrees, 30'. The base is 14.6 meters long. a. Find the length of a leg of the triangle b. Find the altitude of the triangle c. What is the area of the triangle?

7. Math

Predict how many times you will roll a number less than 5 if you roll a standard number cube 250 times.

8. Walk two moons need help

does anyone here read the book walk two moons because i need help

9. physics

A window is 50 long. A stone is falling from a height of 40 cm above the window.find the time taken by the stone to cross the window.

10. chemistry

A 0.509 g sample pure platinum metal was reacted with hcl to form 0.889 g of a compound containing only platinum and chlorine?

12. chemistry

Calculate the pH for each of the following points in the titration of 50.0 mL of a 1.8 M H3PO3(aq) with 1.8 M KOH(aq). before KOH after addition of 25, 50,75,100 ml KOH

13. chemistry

sodium metal reacts with hydrogen gas to yield solid sodium hydride ( NaH ). A reaction mixture contains 10.00 g sodium metal and 0.235 g of hydrogen gas. write a balanced chemical equation for this reaction? what is your limiting reactant? what is your

14. Physics

Four point charges are at the corners of a square of side a as shown in the figure below. Determine the magnitude and direction of the resultant electric force on q, with ke, q, and a left in symbolic form. (B = 4q and C = 6.5q. Let the +x-axis be pointing

15. LA

has anyone read the book Walk Two Moons because i need help? Does anyone know what id the difference between Phoebe's story and Sal's story?

16. Geometry

the side of a regular hexagon is twice the square root of its apothem. find the apothem and side length.

17. Calculus

Consider the function f(x)=(5^x−1)/x. A) Fill in the table values for f(x): x= -0.1, -0.01, -0.001, -0.0001, 0.0001, 0.001, 0.01, 0.1 f(x)= 1.4866, 1.5866, 1.6081, 1.6093, 1.6096, 1.6107, 1.6225, 1.7462 B) Based on the table values, what would you expect

18. physics

When a water gun is fired while being held horizontally at a height of 1.00 m above ground level, the water travels a horizontal distance of 5.30 m. A child, who is holding the same gun in a horizontal position, is also sliding down a 45° incline at a

19. physics

A student sets up an Atwood machine with a frictionless rope, a 4.5-kg mass, and a 9.5-kg mass. What will be the acceleration of the masses? Use the gravitational acceleration found on Earth: g = 9.8 m/s2.

20. science

Ethanol can also be manufactured from glucose, C6H12O6. C6H12O6 2CO2 + 2C2H5OH. A solution containing 18 kg of glucose makes only 0.92 kg of ethanol. Calculate the percentage yield of ethanol.

21. Social Studies

This Canadian landform covers about half of the country. Need help? confused.

22. chemistry

what is the [OH-] in a solution that contains 0.225g of NaOH in 0.250 L of solution

23. math

A Clydesdale drinks about 120 gallons of water every 4 days. At this rate, about how many gallons of water does a Clydesdale drink in 28 days.

24. social studies

large farm in the southern colonies?

25. math

the square root of 5 less than 6 times a certain number is divided by the number and the quotient is 1.Find the number

26. Relative velocity

A pet-store supply truck moves at 25.0 m/ north along a highway. Inside, a dog moves at 1.75 m/s at an angle of 35.0 degrees east of north. What is the velocity of the dog relative to the road?

27. Finance

Sully Corp. currently has an EPS of \$2.14, and the benchmark PE ratio for the company is 20. Earnings are expected to grow at 7.5 percent per year. What is the target stock price in 1 year? Assuming that the company pays no dividends, what is the implied

28. chemistry

consider the balanced chemical equation 2H2O2 ---> 2H2) + )O2 A) given 20.0 g of H2O2 how many grams of water will be produced? B) how many grams of H2O2 will you need to get 20.0 g of water ? C) how many grams of H2O2 will you need to get 20.0 g of O2 D)

29. Physics

Four point charges are at the corners of a square of side a as shown in the figure below. Determine the magnitude and direction of the resultant electric force on q, with ke, q, and a left in symbolic form. (B = 4q and C = 6.5q. Let the +x-axis be pointing

30. math

IF delta SIN=12/13 find the other five trigonometric functions value of delta

31. Math

Joel walked 2/5 of a mile to the store, 3/10 of a mile to the library, and 1/20 of a mile to the post office. Let x = the total distance Joel walked. Hw far did he walk? Draw a picture.

32. HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

what is the word you use to tell how you get the macaroni and cheese into a bowl. My mom _______ the macaroni and cheese into my bowl to serve

33. Chemistry

How do you determine the percent composition by mass of a 100 g K2SO4 solution containing a 20-g solute. What is the mole percent composition of the solute, assuming that the solution consists of 100 g water and 20 g of K2S04? For percent composition of

34. algebra

complete table for the following equation 2x+y=9 x y -3 1 4 5 -1

35. Math

(2ab)squared divided by 6/m cubed

36. Geography

Find the equation of the locus of the points that are equidistant from points (-1,0) and (1,0)

37. Math

How do you estimate using rounding or compatible numbers like 0.97x312?

38. English

How do I turn this into a really good thesis statement? In the myth " When Grizzlies Walked Upright" explain how the bears lived in relation to each other before and after the introduction of the female into their clan, and explain how both the bears and

39. algebra

The velocity of an object fired directly upward is given by the equation V=40-18t, where t is in seconds. when will the velocity be between 22 and 31 feet per second? write and solve a compound inequality and graph the solution on a number line.

40. decimals

how is 2.3-20=17.7 reasonable

41. Math

a cardbord gift-box has a surface area of 478cm2 and a volume of 570cm3. what are the length,width,and height of the carbox gift-box? I Need Help

42. math

a motorboat takes 5 hours to travel 45km downstream and then 18 km upstream on a river whose current flow of the rate of 3 km/hr. how fast can the boat travel in still water?

43. health

In plain English what does this mean? Thank you, There are two confidentiality rules (and their respective settings) in MICA. The first confidentiality rule affects suppression of the display of the entire inner table (i.e., the individual cells) of a

44. Math

4m(m-3)+2m squared

45. English

"I love you purely as it turn to closes" what figure of speech is this? thank you sa sasagot :)

46. LA

i am writing a story about my pet and i need help i am not sure if this is good Help!! My Pet Rexie I have known Rexie ever since my baby brother was born. I remember it like it was yesterday; we had just gotten home from school and in my father’s hands

47. Solid mensturation

Find the area of a sector bounded by a 60 degrees central angle in a circle of radius 6 inches

48. Math Check

Are my answers right? 1.) Find the remainder (x^3+2x^2+3x+4)/(x+2) My answer: 2 2.) Find the remainder (x-1)/(x^4-3x^2+2x-1) My answer: -1

49. Pre-Calculus

1.) Which equation represents a function? A. y=-2x+1 B. x=y^2-1 C. y^2=1/3x D. None Of These E. x=4 2.) The zeros of a function f are the x-values for which f(x) = 0. True or False?

50. math

. The ones digit is 0. . The hundreds and tens digits are consecutive numbers. . The digits in the thousands period have a sum of 15, with the hundred thousands digit being the greatest of the threes digits and the ten thousands digit being the least. .

51. Math

A telephone is anchored to the ground by a long cable called a guy wire, at a point 5 meters from the base of the pole, the wire makes an angle of 72.5 degrees with the horizontal. What is the length of the guy wire? HELP ASAP! I forgot how to compute for

52. differential calculus

find the implicit function of x^3+3^y=3xy

53. Math

when a drawing pin falls to the ground, the probability that it lands point up is 0.2. a. Find the probability that a pin does not lend point up. Two drawing pins fall one after the other.

54. math

how do you graph x>y -2 x+y>1 x

55. social studies

what is the production cost of an orange?

56. math

The sum of two numbers is 31.2/3 of one of the numbers is equal to 5/8 of the other.find the two numbers

57. Math

Convert 2m/s to km/h

58. English

What is the direct and indirect object in the sentence. Ana gave me a two pesos today.

59. math

I don't get decimals adding. how do I solve this proble. 2.05+ 3.675. they shouldn't be teaching this in grade 5! :{

60. physics

A ball is thrown from a height h and another from 2h.find the ratio of time taken by the two balls to reach the ground.

I am stuck on a question on The Integumentary System, the question is Water molecules in the blood pass through the walls of the (blank) into the sweat glands. I am not sure, can someone help me, thanks.

62. English

This is for "When Grizzlies Walked Upright" explain? How did the bears lived in relation to each other? How did the bears lived in relation to each other before and after the introduction of the female into their clan How did both the bears and the female

63. math

A salmon has to swim 25 miles upstream. It seems 7 miles each day and drifts 5 miles at night. How many days does it take for the salmon to first reach the 25 mile mark?)

64. physics

A converging lens is 50cm away from the object. if the distance of the image from the object is 120cm and greater than four times the focal length of the lens, what is the focal length of the said lens?

65. Integers (urgent)

For what integer values of x is x+1-2 positive?

66. Child development

What is an advantage of a cross-sectional design?

67. basic family health

discuss the nutrition and health promotion contribution to family health and development

68. psyc 106

A newspaper iditorialist argues that the use of dsm-iv diagnostic labels is destructively antidemocratic, because it enables an elite ccorps of mental health professionals to subtle control the values and life-styles of the rest of the society. i need

69. science

in the digstive system,what is the defenition or function of th Appendix?

Directions: Using inverses simplify the expression. 5^log5x I know that the answer is x but i have no idea how...

71. World Gepgraphy

What is cultural and political cleansing?

72. chemistry

A weather ballon with a 2 meter diameter at ambient temperature holds 525 grams of helium. what type of electric probe could be used to determine the pressure inside the ballon?

What is the real birthdate of Kalpana chawla ,the first indian,asian woman astronaut who died over texas skies on february 1 st 2003?

74. grammar

What is meant by passive voice? explain it with best examples.

75. Math

The sale price for a house was \$ 50,000. It was on sale for 5% off. Original Price?

76. Government

What are some of the reasons as to why the President is given almost unlimited military powers http://www.law.cornell.edu/constitution/constitution.articleii.html#section2 Article I, Section 2

77. Math

There are 22 events at an indoor track and field meet.the ratio of track events to field is 8:3.hiw many of the events are track events?

78. Math

Solve 5x-3 over 2=4

79. Math

Simplify 3x -(5x+2)

80. Math

Find the Largest share \$360 000 is divided in the ratio 3:4:5

81. physics

Runner A is initially 5.3 km west of a flagpole and is running with a constant velocity of 8.1 km/h due east. Runner B is initially 4.7 km east of the flagpole and is running with a constant velocity of 7.8 km/h due west. How far are the runners from the

82. English

It time love led us to eternity what figure of speech is this? thank you po sa sasagot :)

83. Social

What is scale

84. Pre-Calc

An airplane’s velocity with respect to the air is 630 mph, and its heading is 𝑁 30° 𝐸. The wind, at the altitude of the plane, is directly from the southeast at 45° and has a velocity of 45 mph. Draw a figure that gives a visual representation of

85. physics

A ball is thrown from a height h and another from 2h.find the ratio of time taken by the two balls to reach the ground.

86. physics

A window is 50 long. A stone is falling from a height of 40 cm above the window.find the time taken by the stone to cross the window.

87. networking

what is the difference between vlan and subnetting ?

88. CHEMISTRY HELP

how many hao's exhibited by S16? my answer is 4?

89. social studies

i need help. I do not know what caused the world war II. Can you guys help me?

90. social studies

i was wondering if you guys can help me with social studies i really need help What happened to Cuba when the Soviet Union broke up? my answer is they do not have food or tools

I forgot to bring my ready common core book for reading. I need to do pages 248 and 249

92. Pre-Calc

Can someone check this? Thanks! :) Which pair(s) of functions are inverses? There may be more than one correct answer. a.) f(x) = x - 12, g(x) = x + 12 b.) f(x) = 3x, g(x) = 1/3x c.) f(x) = 4x, g(x) = -4x d.) f(x) = 2x + 1, g(x) = 2x - 1 My answer: A & C

93. spanish

How to write 25,350

94. Child development

A correlation coefficient can range in value from A. +1.00 to -1.00 B. -1.00 to 0 C. 0 to +1.00 -100 to +100

95. chemistry

Show that a conventional x-ray generator is incapable of generating x-rays of wavelength as low as 10-11m. Do this by determining the identity of the target (in atomic number, Z) which would be needed to generate such x-rays.

96. chemistry

Chemical analysis of a silicon crystal reveals gallium at a level of 3.091×10−8 atomic percent. Assuming that the concentration of thermally excited charge carriers from the Si matrix is negligible, what is the density of free charge carriers (free

97. Math

Ben has 8 1/2. Pizzas to serve. How many pizza 1/4 pizza sized serving does he have??

98. management

with example, ilustrate the function of management

99. history

Im writting an essay on the reformation and the renaissance can somebody proofread my essay