1. biology

1. Record your observations of the roots of the bean and radish plants in the appropriate data chart. Be sure to include a sketch of each plant’s roots. Answer: Data Chart: Bean Plant Nodules present? Number of nodules Number of pink nodules Number of

2. Geometry

A solid is composed of a cube with side length 6 meters and a hemisphere with diameter 6 meters. Find the volume of the solid.

3. Chemistry

The density of aluminum is 2.70g/cm3. If a cube of aluminum weighs 13.5 grams whatis the length of the edge of the cube. I need help with the formula to figure this one out.

4. chemistry

If 1.8x1014 J are given off in a nuclear reaction, how much matter is converted into energy? Not a clue as to how I would even START to figure this one out - help!!!

5. geometry help

a trapezoid has base lengths of 4 and 19 feet, with an area of 115 square feet. what is the height of the trapezoid?

6. physic

An air column in a glass tube is open at one end and closed at the other by a movable piston. The air in the tube is warmed above room temperature, and a 350 Hz tuning fork is held at the open end. Resonance is heard when the piston is at a distance d1 =

7. Biostatistics

17. A research biologist has carried out an experiment on a random sample of 15 experimental plots in a field. Following the collection of data, a test of significance was conducted under appropriate null and alternative hypotheses and the P-value was

8. propability

In basketball, Nicole makes 4 baskets for every 10 shots. If she takes 3 shots, what is the probability that exactly 2 of them will be baskets?

9. English

I need help writing a paragraph using these words. Retrospect, Inane, Squelch, Subsidize, and Lethargy.

10. algebra

Find the rate of growth of the function a(x)=19(2.046^x

11. Lepelle

Life orientation

12. Science

Using the balanced equation for this reaction, calculate the volume of CO2 that should be produced by the decomposition of 2.21g of CuCO3•Cu(OH)2 at STP.

13. history

The Civil War and Reconstruction Describe and examine the concept of "sectionalism". Describe and analyze the institution of slavery and access its overall socio-economic impact on the South as well as the Civil War. Describe and analyze the causes and

14. Chemistry

Lactic acid, C3H6O3. If the initial concentration of lactic acid is 0.12 mol/L and the pH is 2.39, what is the Ka for lactic acid?

15. math

for math homework it is algebra and we have to use a ti-83 plus calculator to convert things, that's the one our teacher told us. but i do not have one. so i was wondering if anybody knew of a website that i could use a free calcutar online?

16. Precalculus

Simplify cotx sin2x cscx

17. Geometry

The surface area of acone with height 15 cm is 500π square cm. Find the radius of the cone. Round your answer to two decimal places.

18. physic

In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide extra loudness. For example, the note at 110 Hz has two strings at this frequency. If one string slips from its normal tension of 550 N to 520.00 N, what beat

19. life orientation

Describe the life style disease/behaviour and explain 5 factors

20. Calculus

A rectangle is inscribed with its base on the x axis and its upper corners on the parabola y= 12 - x^2. What are the dimensions of such a rectangle with the greatest possible area?

21. Math

7yd 2ft 3in - 2yd 2ft 9 in

22. physics

if a force of 15N acts on a body in the direction of north and another force of 10N in south what is the resultant force acting on the body

23. PHY

Overall, the physical properties of minerals provide a reliable means to identify common minerals. However, certain properties can exhibit a range of characteristics or values making them less useful for identification purposes. Choose 2 physical

24. Mathematics

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice

25. physics

the 2lb box slides on the smooth curved ramp. if the box has a velocity of 30ft/s at A, determine the velocity of the box and the normal force acting on the ramp when the box is located at B and C. assume the radius of curvature of the path is still 5 ft.

26. life orientation

Topic:the practice of high-risk sexual behaviour amongst the adolescence. Describe the life style behaviour and explain 5 factors

27. english

help me to ((write a letter to your year group, inviting students to become part of the team)). In the letter you need to tell them 1)for which activity you are sending a team. 2)what kind of experience or special skills are needed. 3)how members of the

28. Math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice

29. chemistry

The relative rate of diffusion between two gases is 1.656. If the lighter gas is methane (molecular mass=16.05g/mol), what is the molecular mass of the other gas? What might the other gas be?

30. math

At football practice, players do a 20-minute warm-up before starting their practice drills. After the practice drills, they do a 10-minute cool-down. The expression 20+d+10 describes the length of practice, where d is the number of minutes the practice

31. Math

Find the surface area of a right octagonal pyramid with height 2.5 yards, and its base has apothem length 1.5 yards.

32. physics

a toy spring gun is used to shoot 28-g bullets vertically upward. the un deformed length is 150 mm, it is compressed to a length of 25 mm when the gun is ready to be shoot and expands to a length of 75mm as the bullet leaves the gun. a force of 45 N is

33. Writing

Am I using comparatives and superlatives correctly in these sentences? •When I started school, my writing skills were limited, now I have more knowledge on how to write correctly. •I have not had the easiest time understanding certain materials. •It

34. study unit:: main ideas

(1) Do you endjoy being out in the fresh air? (2) Does nature restore your spirits? (3) You might want to consider hiking as a hobby. (4)It's a hobby you can begin with very little expense. (5) All you need to start is a good pair of hiking shoes. The

35. science

a ball is thrown from a point 100m above the ground with speed 20m/s.find the velocity,direction and magnitude with which it strikes the ground?

36. Science

Copper wires are a great example of the fact that metals are very?

37. accounting ..urgent pls

can you help please.. PROB 1: A, B and C shared the profit of Rs. 9,00,000 in the ratio of 2:2:1 without providing for interest on B’s loan, B granted a loan of Rs. 4,00,000 in the beginning of accounting year. Where as the partnership deed is silent on

38. art appeciation

If Gianlorenzo Bernini's Apollo and Daphne were to be moved from the Galleria Borghese in Rome where it now stands into the Ufizzi Gallery, the most ideal place to install it would be

39. Physics

A 5 gram bullet is fired and embeds into a 30 gram block of wood resting on a 2 m tall post. After the collision, the piece of wood lands 15 meters from the base of the post. Find the initial speed of the bullet.

40. u.s.history

Module 4: Topics and Objectives Industrialization, Immigration, the American West, and the Progressive Era Describe and evaluate the Industrial Revolution and its social, political, economic, and cultural impacts on Americans. Describe and examine the

41. behavioral science

if a girl likes a boy and wants to hint to him she likes him humans r habitat creatures how would the girl show or tell the boy?

42. Math

Use the intermediate value theorem to show that f(x) has a zero in the given interval. Please show all of your work. f(x) = 3x^3 + 8x^2 - 5x - 11; [-2.8, -2.7] I'm not understanding all this questions...

43. Math - Possible or Potential rational zeros

List all possible (or potential) rational zeros for the polynomial below. Find all real zeros of the polynomial below and factor completely over the real numbers. Please show all of your work. f(x) = x^4 - 7x^3 - 3x^2 + 19x + 14

44. algebra

find the quotient 9a^2-b^2/3a-b

45. math

the distance of fencing reqired for 75 acres but fist changing it to meters squared i think that it is 304 969 m sq but i still don't know how much fence wire i need foe the circunferance please ckeck my work and give me the correct answer

46. Organic chemi

I have a calculated enantiomeric excess value of 7% for my limonene experiment, what exactly does that mean? that i only isolated 7% of the proper R-limonene isomer and the rest 93% is the S isomer?

47. Chemistry

If 200 mL of 3.70 M aqueous Ba(OH)2 and 980 mL of 0.837 M aqueous HClO4 are reacted stoichiometrically according to the balanced equation, how many milliliters of 3.70 M aqueous Ba(OH)2 remain? Round your answer to 3 significant figures. Ba(OH)2(aq) +

48. math

answer this putt these numbers in order from least to greatest 3/5,1/4,1/2,2/5

49. algebra 2

What is 36x^3-33x^2-33x-6/9x+3

50. English

How is the best way to write the explaination on the changes that you would make to revise the paper. I know what needs to be corrected, but I am not sure how to word it in a paragraph. The Dark Knight was the most popular film of 2008. Unlike most popular

51. accounting ..urgent pls

please help me to solve this problem. THANK YOU AND MAY GOD BLESS YOU ALWAYS. L. Carson agrees to pay \$10,000 each to to C. Ames and D. Barker for 1/3 of their interest in the Ames-Barker partnership. At the time of the admission of Carson, each partner

52. accounting ..urgent pls

PLEASE HELP ME AND YOU ARE ALL BRIGHT AND I NEED YOUR HELP FOR SOLVING THIS PROBLEM. PROBLEM 1: CARE p’ship at December 31 had cash amounting to \$20,000, noncash assets \$100,000, liabilities \$55,000, and the following capital balances: Cassandra \$45,000

53. Math

Need help on figuring out the function rule for a set of numbers. x:y -3,0 -1,14 1,28 3,42

54. Stoichiometry

How much 6M HCl and NaHCO3 are required to make 1 quart of CO2?

55. geometry

Complete the following statements about the measures of angles in the figure shown, where and state the generalization that supports each statement.

56. Social Studies

What Indian tribe helped Lewis and Clark build a canoe?

57. Grammar

Write one paragraph (150 word minimum) about the most helpful information you have learned from your other second block course on how to make financial decisions. Identify the topic sentence by [] and the clincher by {}. **Is this correct? [From my

58. world history

in what regions did latin christendom expand during the period of the early mongol expansion?? britan and spain the middle east and spain prussia and north africa finland and estonia I answered middle east and spain am i correct

59. calculus

3. A deposit of ___(i)___is made into an account paying an interest rate of 5% compounded annually. How many annual payments of ___(iii)___can be made from this account? a) (i)\$100,000 (ii)\$10,000 b) (i)\$200,000 (ii)\$20,000 c) (i) 10x (ii) x d) (i) 10x

60. Inequality

Hi, can someone explain how to solve this inequality... 2x^3 - 7x^2 < 8x - 28 Thanks, Armando

61. algebra

find the quotient 6x^3-5x^2-13x+13/2x+3

62. algebra

the area of a rectangular swimming pool is given by 4x^2+9x+2ft^2.One side length of the pool by 4x+1feet. What is an algebraic expression for the other side lengeth of the pool and simplify and include correct units as a part oy your answer. please help

63. physics

the horizontal or x component of the ball's acceleration is 870 m/s2 and the vertical or y component of its acceleration is 1500 m/s2. The ball's mass is 0.33 kg.

64. Synonym

Hey What's a synonym for the word 'pantheon' where it applies to all the gods of a religion, say Ancient Egyptian? Thanks!

65. Algebra

If 10,000 is invested at 4.8% simple interest, how long will it take for the account balance to grow to 11,200.

66. english

What is the topic sentence? Nearly everyone is familiar with the dark silhouette of the giant saguaro, its arms thrust stiffly out. However, few people have actually seen this awe-inspiring plant in its natural habitat, since it is found only in the desert

67. english

In the book 1984, who wrote the song that the proles sing?

68. Spanish

For some reason these ones were tricky for me :/ 30. "Mi abuela está en el hospital." "Qué lástima! _______" a. No vale la pena b. ¿Qué te duele? c. No lo sabia d. ¿Qué tienes? C or D..? 31. A mis hermanos menores las peliculas de terror ______. a.

69. English

Are these sentences grammatically correct? The girl got married in 2010 and had one child, Sara Lee, afterwards. The girl went from being a cashier to a millionaire.

70. Physics

How much energy would your body need to provide for the following : a)sweating and evaporation of 1kg of water from your skin. b)heat loss by radiation at the rate of 100 wats for 12 hours. (the specific latent heat of vaporisation of water is 2.3MJkg-1)

71. Physics

A 5 gram bullet is fired and embeds into a 30 gram block of wood resting on a 2 m tall post. After the collision, the piece of wood lands 15 meters from the base of the post. Find the initial speed of the bullet.

72. Chemistry

2LiOH + CO2 yields Li2CO3 + H2O will the astronauts survive and how much water is made if there is 2.00 kg LiOh and expel 35kg of CO2?

73. algebra

use the rational root theorem to list the possible rational roots for each of the following equations f(x)=x^2+2x+1 f(x)=x^2-2x+5 f(x)=x^2+4x-5

74. Physics

A bullet with mass 4.91 g is fired horizontally into a 1.981-kg block attached to a horizontal spring. The spring has a constant 6.25 102 N/m and reaches a maximum compression of 6.38 cm.

75. Physics

A bullet with mass 4.91 g is fired horizontally into a 1.981-kg block attached to a horizontal spring. The spring has a constant 6.25 102 N/m and reaches a maximum compression of 6.38 cm. a) find the initial speed of the bullet-block system. b) find the

76. Science

Choose the correct answer in parenthesis. 150 million years ago the continents were ---(closer together / farther apart)--- than they are now. South America and Africa used to be ---(together / apart)---. 100 million years into the future, the continents

77. Socials Studies (URGENT)

1. Why did Canada go to war in Korea and why was this war significant for Canada and the UN? Went to Korea to aid the south against the north from communism. (Don't know why it was significant. Any help?) 2. Describe two instances which Canada influenced

78. Geometry

A rectangular prism with 2 little square bases of a radius of 1m. It's height or rectangular length is 5m. Please help me find the surface area. The answer should be less than 50m².

79. Math

John said that he had been working for the highway department for about 9.75 years. Which of the following could be the actual amount of time, in years, that John had been working for the highway department. f) 9.25 g) 9.35 h) 9.65 i) 9.95

80. Math

Find all complex zeros for the following polynomial function. Please show all of your work. f(x) = x^4 - 91x^2 - 900 Hi, I need help... I'm not understanding this complex zero..

81. Math - Real number system

Solve the following equation in the real number system. Please show all of your work. x^4 + 6x^3 + x^2 - 24x - 20 = 0 Help!!!!

82. English

Can you please check these two sentences? 1) He contrasts natural behaviour, which he regards as good to social behaviour, which was governed by reason and social conventions. 2) Long, low-neck T-shirts, which reach up to the tighs, are very popular among

83. chemistry

Help! The concentration of a solution of hydrochloric acid is 1•00 ± 0•05 mol dm−3 and the volume is 10•0 ± 0•1 cm3. Calculate the number of moles and state the absolute uncertainty.

84. Spanish

Please unscramble these Spanish words mincara, carbaa, tauerdis, tagsur, suar, qarilaul, caars, sotrecnat, piormcatr, bajra, gelral.

85. math

perform the indicated operations 3 √6-6 √150

86. Math - potential zero

List all possible (or potential) rational zeros for the polynomial below. Find all real zeros of the polynomial below and factor completely over the real numbers. Please show all of your work. f(x) = x^4 - 7x^3 -3x^2 + 19x + 14 Help

87. physics

the 3 lb block A rests on a surface for which the coefficient of kinetic is Mk=.30 determine the distance the 8-lb cylinder B must descend so that A has a speed of Va = 5ft/s starting from rest.

88. physics

the 2lb box slides on the smooth curved ramp. if the box has a velocity of 30ft/s at A, determine the velocity of the box and the normal force acting on the ramp when the box is located at B and C. assume the radius of curvature of the path is still 5 ft.

89. English

im studying the poem entitled 'Aunt Jennifer's Tigers' by Adrianne Rich and in a review of this poem they say that 'poets use of the word 'chivalric' refers to tigers stalking their domain' what does it exactly mean?

90. math

7x+5/0.4 + 5-3x/0.5 = 4x/0.25

91. English

Could you please check these adjectives referring to personality? Thank you very much. 1) I'm outgoing, sensible, sincere, touchy and hard-working. 2) I'm quite confident about myself. I'm anxious about next week's biology test. 3) If I were you, I'd study

92. English

I forgot to add these two sentences. Thank you. I'm annoyed with his behaviour. I'm annoyed/irritated/angry with him about his behaviour (??). I'm bored with my present job/I'm fed up with my job/I'm tired of my job.

93. Spanish

23. "¿Qué enviaste?" "_______" a. Una carta. b. un correo c. Una cuadra d. Un sello A? 25. Necesito comprar unos libros en español. Vamos ______. a. a la biblioteca b. a la estación de policia c. al estadio d. a la libreria D? 28. No tengo dinero. Creo

94. AIG

What is the difference between executive and non executive pay? Contrast the principle diff between executive pay with non-executive. What are the controversies associated with the growing disparity between the compensation packages?

96. Statistics/Probability

Suppose it is known that a new treatment is successful the cases. If it is tried on 15 patients, find the probability [Use binomial distribution]. (a) at most 6 will be cured (b) twelve or more will be cured (c) at least two will be cured.

98. operating system

Two processes communicating using (memory locations “variables” or files).

99. algebra

(a) A graph of is shown in the figure, where y _ L(x). As the weight of the plane increases, what can be said about the length of the runway required?

100. Algebra 2/ trig

sin theta= 7/25, 0< theta < pi/2 cos beta=8/17, 0, beta, pi/2 Find(theta+ beta)

101. Physics

An Electricity account shows that a household has used 1400 units of electrical energy during a three month period. Calculate : a)the number of joules of energy used in this time. b)the average number of joulesof energy used perday . c)the average power

2cos^2+sin=1

103. Biology

Wha advantage could the following traits be to the organism ? a) Larger leaves b)Green Leaves c) More seeds d) Brightly coloured flowers

104. english

I am stuck with being able to complete this assignment and I was wondering if some1 could help me with it. I don't (can't) fail this 1. I already completed my english assignment but I totally bombed it and they want me 2 complete this assignment 2 b able 2

105. Anatomy

Describe how air is modified by the nasal passages, and describe the special structures that allow this modification

106. Anatomy

Describe how olfaction is accomplished by the nasal passages

107. Anatomy

Describe 4 lung volumes that are measured by a spirometer

108. Anatomy

Describe each part of the respiratory passage regarding tissue, and why that tissue would be appropriate for that area. THANK YOU!

109. Science

150 million years ago the continents were (closer together / farther apart) than they are now. South America and Africa used to be (together / apart). 100 million years into the future, the continents (are / are not) in the same positions as they are now.

110. Health

What would be the change in the heart that occurs during excersise? What is going to pick up and increase in heart rate and blood pressure? What is going to bring it back to homeostasis?

111. MAth

-8 - 12 + 28 + 4(-3)

112. math

help! im just a seventh grader! i need a problem made up for me about how to solve the surface area of a Dodecahedron so i can help see if my theory is right or wrong!

113. History

Is the White Australia Policy and the Immigration Restriction Act the same or different?

114. Math

Use the given information about a polynomial whose coefficients are real numbers to find the remaining zeros of the polynomial. Degree: 6 Zeros: -6 + 13i^3, -8 + s^2i, -3 - 4i

115. MATH

WHAT IS 2/6 OF \$60

116. Political Science

Can anyone help me connect how the movie Robocop connects to Fascism?

117. science

unsramble LMDEAIOTBNCL

118. math

simplify 5d+3(2-3d)

119. life orientation

critical discuss human or environmental problem impacts on the community

120. chemistry

what are some examples of suspensions?

121. algebra

find the quotient y^4+3y-1/y^2-3

122. chemm.

how many significant figures are in 9.800x10^4 ?

124. math

rationalize the denominator 10/√21

125. Body Structures & Functions

The blood level of the brain gets the messeage and sends a releasing factor for_________ to the ________ gland.

126. Physics

Can someone plz answer my 2 previous question ???

127. english

What is the epigrammatical style in poetry? And what could be the examples of it in the work of Emily !@#\$%^&inson?

128. geometry

Why do only three types of regular polygons tesellate the plane and what are they?

129. Pre-Calc

How do I solve this equation? x+5 = sqrt(x+5)

130. Statistics

1. The sociologist surveyed the households in a small town. The random variable X represents the number of dependent children in the households. The following is the probability distribution of X: X 0 1 2 3 4 P(X) 0.07 0.20 0.38 k 0.13 (a) Find the missing

131. computer science

Give five difference between hardware and software?

132. Science

How does respiratory and cardiovascular system obtain nutrients?