1. physics

an astronaut on the planet zircon tosses a rock horizonally with a speed of 6.95 m/s. the rock falls through a vertical distance of 1.40 m and lands a horizontal distance of 8.75 m from the astronuat. what is the acceleration of gravity on zircon?

2. Chemistry

A 1.42-g sample of a pure compound, with formula M2SO4, was dissolved in water and treated with an excess of aqueous calcium chloride, resulting in the precipitation of all the sulphate ions as calcium sulphate. The precipitate was collected, dried, and

3. chemistry

list the numbers and types of atoms represented by these chemical formulas. a.Fe2O3 b.KMnO4 c.CH3 d.NH4NO3

4. calculus

You are standing at the edge of a slow moving river which is one mile wide and wish to return to your campground on the opposite side of the river. You can swim at 2 mph and walk 3 mph. You must first swim across the river to any point on the opposite

5. PreCalculus

I need help with a Matrix Algebra problem A small school has 100 students who occupy three classrooms A, B, and C. After the first period of the school day, half the students in room A move to room B, one-fifth of the students in room B move to room C, and

6. Could you please check over my english? :)

I'm working on an English assignment and I've answered most of them, but I'm not too sure about these ones.. If you could check over my answers that would be amazing! Thank you so much in advance :) In the following sentences identify the main clause. Find

7. Trig

Which trigonometric function can equal or be greater than 1.000? A Sine B Cosine C Tangent D none of the above

8. Geometric Proofs

Given: line AB is congruent to line AC, Angle BAD is congruent to angle CAD. Prove: line AD bisects BC Picture: An upside down triangle divided inhalf to form two triangles Angle BAD and angle CAD. They share a common side of AD. and point D bisects line

asked by Tengo anos Cuarenta y uno
9. participial phrases

Which sentence contains a participial phrase with an embedded clause? Running, giraffes look like something that was designed in a bad dream. Running when they heard the gunshots, the giraffes fled to safety. Tired and hot, they stopped when they found

10. physics

the great gray-green, greasy zambezi river flowa over victoria falls in south central africa. the falls are approximately 108 m high. if the river is flowing horizontally at 3.60 m/s just before going over the falls, what is the speed of the water when it

11. physics

Two motorcycles are traveling in opposite directions at the same speed when one of the cyclists blasts his horn, which has frequency of 544 Hz. The other cyclist hears the frequency as 522 Hz. If the speed of sound in air is 344 m/s, what is the speed of

12. math

an equilateral triangle has an altitude length of 36 feet. determine the length of a side of the triangle

13. College Algebra

A carpenter is cutting a 3ft by 4ft elliptical sign from a 3ft by 4ft piece of plywood. The ellipse will be drawn using a string attached to the board at the foci of the ellipse. A)How far from the ends of the board should the string be attached? B)How

14. geometry

a regular hexagon is composed of 12 congruent 30,60,90 degree triangles. if the length of the hypotenuse of one of those triangles is 18 square root 3 find the perimeter of the hexagon

15. people

Justin's new telephone number is 663-7589. He frequently tells people that it is 633-7589. He is puzzle as to why he keeps doing that until he realizes that the first three digits of his socils security number are 633. Justin realizes that his problem is

16. Geometric Proofs

Given: line AB is congruent to line AC, Angle BAD is congruent to angle CAD. Prove: line AD bisects BC Picture: An upside down triangle divided inhalf to form two triangles Angle BAD and angle CAD. They share a common side of AD. and point D bisects line

asked by Tengo anos Cuarenta y uno
17. physic:(

Two ice skaters, Daniel (mass 70.0 ) and Rebecca (mass 45.0 ), are practicing. Daniel stops to tie his shoelace and, while at rest, is struck by Rebecca, who is moving at 14.0 before she collides with him. After the collision, Rebecca has a velocity of

47. Chemistry

A compound of the element A and oxygen has a mole ratio of A:O=2:3. If 8.0 grams of the oxide contains 2.4 grams of the oxygen, a. What is the atomic weight of A? b. What is the weight of one mole of the oxide? c. What theoretical weight of the oxide is

48. Alg 2

Suppose you deposit a principal amount of p dollars in a bank account that pays compound interest. If the annual interest rate r (expressed as a decimal) and the bank makes interest payments n times every year, the amount of money A you would have after t

49. com156

Quoting, Summarizing, and Paraphrasing a Source Part 1: Summarizing Review the following passage and summarize it in the box as though you were including this information in a research paper. Use the reference to create an appropriate APA-formatted,

50. Physics

A diver springs upward with an initial speed of 2.23 m/s from a 3.0-m board. (a) Find the velocity with which he strikes the water. [Hint: When the diver reaches the water, his displacement is y = -3.0 m (measured from the board), assuming that the

51. healthcare quality management and outcomes

why is risk management important in organizations? what benedits are gained by implementing a risk-management program

52. math

consider the function: f(x)=3sin(2(x-30))-1 determine the first three x-intercepts to the right of the origin, rounded to the nearest tenth of a degree.

53. Algebra

Speed of passenger train is 6mph faster than the freight train. The passenger train travels 260 miles at the same time the freight train travels 230 mph. WHAT would be the speed of both the passenger and freight trains?????

54. algebra

the office jet printer can copy maria's dissertation in 16 min. the jet printer can copy the same document is 8 min if the two machines work together how long would they take to copy the dissertation

55. Statistics

What electrical changes occur in muscles as they get tired? student subjects are instructed to hold their arms above their shoulders as long as they can. Meanwhile, the electical activity in their arm muscles is measured. This is

56. algebra

the number of kilograms of water in a human body varies directly as the mass of the body an 87kg person contains 58kg of water how many kilograms of water are in a 72-kg person

57. world history

What were the goals and results when rejected Darius' peace settlement of all land west of Euphrates river

58. math

a ladder leaning against a wall makes a 60 degree angle with the ground. the base of the ladder is 4m from the building. how high above the ground is the top of the ladder?

59. physics and guns

A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. A 4.97-g pellet is placed against the compressed and latched spring. The spring latches at a compression of [01] cm, and it takes a force of

60. Chemistry

In a chromatography experiment, a solution was prepared by mixing 12.98 mg of isopropanol plus 10.00 mL of an unknown containing some acetone, and diluting to 25.00 mL. Signal of 5.97 and 6.38 were observed for the acetone and isopropanol, respectively. In

61. algebra

the speed of a passenger train is 20mph faster than the speed of a freight train. the passenger train travels 300 miles in the same time it takes the freight train to travel 200miles find the speed of each train.

62. math

What type of graph is best suited for displaying the range and frequency distribution of the number of hours the students in a class spend on homework while still showing each individual amount of time spent on homework?

63. chemistry

If you filled three balloons with eaqual volumes of hydrogen, argon, and carbon dioxide gas all at the same temperature and pressure, which ballon would weigh the most? The least?

64. chemistry

What mass of hydrogen peroxide should result when 1.50g of barium peroxide is reacted with 25.0mL of 0.50 M hydrochloric acid?

65. statistics

Consumer Reports rated airlines and found that 80% of flights involved in the study arrived on time (that is, within 15 minutes of scheduled arrival time). Assuming that the on-time rate is representive of the entire commercial airline industry, consider a

66. physics

Over a time interval of 2.37 years, the velocity of a planet orbiting a distant star reverses direction, changing from +23.4 km/s to -15.7 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) during

67. physics

A 43 kg, 5.3-{\rm m}-long beam is supported, but not attached to, the two posts in the figure . A 23 kg boy starts walking along the beam.How close can he get to the right end of the beam without it falling over?

68. Science

A student observed the apparent shape of the moon every night for a period of 60 days. On Day 10 the student observed a full moon. On which day did the student most likely observe a full moon? A. Day 20 B. Day 30 C. Day 40 D. Day 50 I think it's C cause it

69. chemistry

using VSEPR THEORY SHOW WHY 1)BF4- is a tetrahedral molecule 2)SF3+ is a Trigonal pyramidal molecule 3)ICI4- IS A SQUARE PLANER molecule 4IF5 IS A SQUARE pyramidal molecule 5)PF5 IS A TRIGNAL BIPYRAMIDAl molecule

70. social studies

"mission civilisatrice" is best described as A) a movement in which the french tried to implant french culture into first nations peoples B) a french residential school designed to civilize the iroquois C) the french version of social darwinism D a

71. geometry

A farmer has 30yd of fencing and wants to enclose an area beside his barn. What are the dimensions of the region of maximal area, and what is that maximal area if the region is an is isosceles triangle with its base along side of the barn. Given -> legs of

72. physics

two canoeists start paddling at the same time and head toward a small island in a lake. caneist 1 paddles with a speed of 1.35 m/s at an angle of 45 degrees north of east. canoeist 2 starts on the opposite shore of the lake,a distance of 1.5 km due east of

73. Stats

Consumer Reports rated airlines and found that 80% of flights involved in the study arrived on time (that is, within 15 minutes of scheduled arrival time). Assuming that the on-time rate is representive of the entire commercial airline industry, consider a

74. english

How do I cite APA Reference for an online site with no author that reads acknowledege Newpaper articles: The Statesman,The Telegraph Timir Ganguly's web site: Need ASAP Thanks

75. trig

A tree casts a shadow 203 feet long. Find the number of feet in the height of the tree knowing that the angle of elevation of the sun is 16 degrees. Give your answer to the nearest integer. a. 57 b. 56 c. 61 d. 58 e. 55

76. Statistics

What electrical changes occur in muscles as they get tired? student subjects are instructed to hold their arms above their shoulders as long as they can. Meanwhile, the electical activity in their arm muscles is measured. This is

77. physics

The Near Earth Asteroid Rendezvous (NEAR), after traveling 2.1 billion km, is meant to orbit the asteroid Eros at a height of about 15 km from the asteroid's center. Eros is roughly box-shaped, with dimensions 40 km 6 km 6 km. Assume Eros has a density

78. Physics

A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.4 m/s2; after 3.7 s he enters the main speedway. At the same instant, another car on the speedway and

79. physicsss ;o

a 12 V car battery is found to be capable of storing 2.0 kW*h of eletrical energy. for a certain eletric car, it is necessary to develop 10 kW of power to drive at 20 km/h. a)suppose that the car has 10 such batteries. how long(hours)could it run if all 10

80. trig

By expressing 3x as (2x + x) prove that cos3x = 4cos^3x - 3cosx

81. physics/math

Ahhh! I've seen some examples of this type of problem but I can't seem to solve it! Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. The height of the cliff is

82. Physics

A race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 5.4 m/s2; after 3.7 s he enters the main speedway. At the same instant, another car on the speedway and

83. algebra

a long distance trucker traveled 64miles in one direction during a snow strom. the return trip in rainy weather was accomplished at double the speed and took 2 hours less time. find the speed going.

87. physics

The Near Earth Asteroid Rendezvous (NEAR), after traveling 2.1 billion km, is meant to orbit the asteroid Eros at a height of about 15 km from the asteroid's center. Eros is roughly box-shaped, with dimensions 40 km 6 km 6 km. Assume Eros has a density

88. algebra

there are approximately 4lb of muscle for every 5lbs of body weight of a certain animal for a 115-lb animal how much of the weight is muscle

89. Calculus

In a healthy person of height inches, the average pulse rate in beats per minute is modeled by the formula 596/(x^.5) for 30

90. math

In the right triangle below, a = 53 cm, b = 45 cm and c = 28 cm. Find sec(θ) .

91. chemistry

using VSEPR THEORY SHOW WHY 1)BF4- is a tetrahedral molecule 2)SF3+ is a Trigonal pyramidal molecule 3)ICI4- IS A SQUARE PLANER molecule 4IF5 IS A SQUARE pyramidal molecule 5)PF5 IS A TRIGNAL BIPYRAMIDAl molecule

92. Developmental Psychology

According to continuity theory, the Big Five personality traits

93. Physics

A crate of mass 0.812 kg is placed on a rough incline of angle 35.3 degrees. Near the base of the incline is a spring of spring constant 1140 N/m. The mass is pressed against the spring a distance x and released. It moves up the slope 0.154 meters from the

94. Physics

A crate of mass 0.812 kg is placed on a rough incline of angle 35.3 degrees. Near the base of the incline is a spring of spring constant 1140 N/m. The mass is pressed against the spring a distance x and released. It moves up the slope 0.154 meters from the

95. algebra

a particular hybrid car travels approximately 288mi on 6 gal of gas. find the amount of gas required for a 912-mi trip

96. Math

You are required to design a QBASIC program that receives a student test score and prints out her grade, the grading criteria is as follows =90 is A.

97. trig/precalculus

A crate weighing w pounds sits on a ramp positioned at an angle of x with the horizontal. The forces acting on this crate are modeled by the equation Mwcosx = wsinx, where M is the coefficient of friction. What is an expression for M in terms of x? A. M =

98. History

Compare and contrast the war efforts of the united states to remain neutral in World War 1 and World War 2.

112. algebra

10cm2 of a normal specimen of human blood contains 1.2g og hemoglobin how many grams does 47cm3 of the same blood contain

113. physics

playing shortshop, you pick up a ground ball and throw it to second base. the ball is thrown horizontally with a speed of 22 m/s ditectly toward point a. when the ball reaches the second baseman 0.45 s later, it is caught at ponit b. (a) how far were you

114. chemistry

using VSEPR THEORY SHOW WHY 1)BF4- is a tetrahedral molecule 2)SF3+ is a Trigonal pyramidal molecule 3)ICI4- IS A SQUARE PLANER molecule 4IF5 IS A SQUARE pyramidal molecule 5)PF5 IS A TRIGNAL BIPYRAMIDAl molecule

115. Science

Hi, Could someone help me with this science homework? Symbiotic Relationships in the Baltimore Checkerspot Butterfly's Habitat Under this it has 2 titles: 1. Organisms _______________ _______________ _______________ _______________ 2. Type of symbiosis

116. trig/precalculus

A crate weighing w pounds sits on a ramp positioned at an angle of x with the horizontal. The forces acting on this crate are modeled by the equation Mwcosx = wsinx, where M is the coefficient of friction. What is an expression for M in terms of x? A. M =

117. Physics

A bucket of mass M = 5.47 kg is attached to a second bucket of mass m = 3:52 kg by an ideal string. The string is hung over an ideal pulley as shown in the gure. Mass M is started with an initial downward speed of 2.13 m/s. What then is the speed (m/s) of

118. social studies

"mission civilisatrice" is best described as A) a movement in which the french tried to implant french culture into first nations peoples B) a french residential school designed to civilize the iroquois C) the french version of social darwinism D a

119. chemistry

If you make a solution by dissolving 25.0g of sodium chloride in 100.0 mL of water. What is the boiling point of the solution?

120. math

I need help please help me. There's a chart that has to have 16boxes. It has to be 4 by 4. Lable boxes that are vertical top to bottom 1,2,3,4 and boxes that are horizontal left to right A,B,C,D. Box 1A has to be 28,Box 1C has to be 34, box 2C has to be

121. geometry

An isosceles trapezoid has bases length 19 and 11 centimeters and length 13 centimeters. What is the area of the trapezoid to the nearest tenth?

122. English/Commas

I was asked to put all the commas in the correct place for each sentence. I am unsure about some. Are these correct? Thanks 1. As I understand it, John Pearson has lived in Winston Colorado, a small almost unknown tourist resort since August 10, 2002. 2. I

123. Finite Mathematics

I just need help with the set up of this problem, that's where I'm getting lost. A mining company operates two coal mines, M1 and M2. The company sells the coal to three purchasers: two steel mills P1 and P2, and a power generating station P3. The cost of

135. chemistry

A sample of cesium metal reacted completely with water, evolving 47.0 mL of dry H2 at 31°C and 769 mmHg. What is the equation for the reaction?

136. math

for the event of rolling one die, find a.P(rolling atlease a 3) b.P( ROLLING AN ODD NUMBER)

137. Marh

Add or subtract to solve . Teri has 42 cent. Her mom give her 19 cent .now teri has

138. Physics

A bucket of mass M = 5.47 kg is attached to a second bucket of mass m = 3:52 kg by an ideal string. The string is hung over an ideal pulley as shown in the gure. Mass M is started with an initial downward speed of 2.13 m/s. What then is the speed (m/s) of

139. Algebra

The cost, in millions, to remove x% of pollution in a pond is modeled by the equation: . What is the cost to remove 75% of the pollution? Hint: Plug in and calculate, do not convert to a decimal. what value of x would make the equation undefined? Hint:

140. Math

Problem solving Marie takes 22cent from her coin bank.Now she has 49cent left .how much did she start with?

141. Algebra

The cost, in millions, to remove x% of pollution in a pond is modeled by the equation: . What is the cost to remove 75% of the pollution? Hint: Plug in and calculate, do not convert to a decimal.

142. math

In the right triangle below, a = 53 cm, b = 45 cm and c = 28 cm. Find sec(θ) .

143. math

What is the relationship between centimeters and meters?How do you convert one unit to the other

144. Science

What Temperature would you get after the First 5 Minutes of Putting 4 Ices into a 99 degree warm water? After The Second 5 MInutes? YOu Might need to do this experiment at home. But May anyone Please Help and tell me it in Farenheit so i can confirm my

145. chemistry

Compound C (MW = 550) is provided at a concentration of 25g/100mL. 1mL is taken and compound D is to be added (MW = 1025, concentration = 75mM) to give a final ratio of compound C:D of 4:1 . What volume of compound D is to be added? ''DR BOB 222 IT IS A

146. algebra

jack usually mows his lawn in 4 hours mariltn can mow the same yard in 7 hours how much time would it take for them to mow the lawn together

147. physics

A gas of volume 2m^3 at 27C is heated to 327C at constant pressure. What is its new volume?

148. physics

You throw a 1kg ball out of a window 12 meters above the ground with horizontal speed. It lands on the ground 5 meters from the building after 1 second. Ignore air resistance, A) How fast did you throw the ball? B) What was the ball's initial velocity? C)

149. trig

Find the exact values of the inverse function arcsin 1/2

150. Trigonometry

In the right triangle below, a = 53 cm, b = 45 cm and c = 28 cm. Find sec(θ) .

151. math

Tim works at a hardware store has 8 1/2 pounds of nails to be sorted into bags. How many bags will Tim be able to fill if he puts 1/4 pounds of nails into each bag?

152. science

1. What was wrong or why do you think people rejected Wegner's idea of continental drift? 2. Explain why some partly molten lava rises toward Earth's surface.

153. Math - Exponentials

How do I approach the following problem. Please don't give answer but just guidance as to how to approach these in general. I need to be able to solve without a calculator. 3^(2x+1)-16(3^x)+5=0

154. chemistry

By reference to Molecular orbital Theory and giving the appropriate MO diagrams explain why the bond in N2 is very strong short (bond dissociation entalpy 945 kjmol-1,bond length 109.8 pm) while that in O2 is weaker and longer (bond dissociation entalpy

155. chemistry

explain what is meant by the term 'Hybridisation' in molecular orbital theory and show how the concept can be used to explain the structure and bonding in ethane C2H6 ETHENE C2H4 AND ETHYNE C2H2

156. physics

Calculate the Mechanical Advantage for an incline plane that raises the load to 2.4 meters and has a length of 13.8 meters.

157. Physics

Before starting this problem, review Multiple-Concept Example 6. The left ventricle of the heart accelerates blood from rest to a velocity of +20.6 cm/s. (a) If the displacement of the blood during the acceleration is +2.87 cm, determine its acceleration

168. English

Hello. I'll appreciate some help. Do you think it's possible to use "accent" in the same meaning and context as "stress" or "emphasize", for example: "He accented that the administration would take further measures to stabilize the situation"? Thank you

169. Biology

What is the difference between thromboplasin and factor Xa? I have in my notes that they both convert prothrombin to thrombin.

170. english

Should i use the word by, of, as..in this sentence? John doesn’t know who or what to believe, for he has never experienced the cruelties by white people, like his father had.

171. Physics

True or False: If a cannon fires a cannonball in an easterly direction, the tendency of the cannon to move to the west is a result of the principle of conservation of energy.

172. oceanography

What is the relative density of seawater. granite rock. basaltic rock. mantle

I have a question about mediation I hope someone can help me. Describe the best style of mediation and the steps in the mediation process that should be used:

174. marine systems

What 3 physical factors determine the distribution of life in the ocean?

175. physics

a truck is moving 15m/s North. after 7.9 has elapsed it is moving 55m/s North. determine the truck's acceleration and determine its displacement during the elapsed time.

176. math-probability

betsy goes running 2 days out of 7 and james goes running 5 days out of 7. What is the probability that one of them is running on any given day.

177. Intermediate Math

Rationalize the denominator. 2 / squareroot7+squareroot3 Please show steps

178. Intermediate algebra

The number of trout in America, since 1970, is given by the following: y = x2 + 3x + 2 Where x is the number of years and y is the number of trout in the millions. What is the number of trout in the years 1975, 1980, and 1985? Describe the trend of the

179. Calculus

I'm doing test corrections, and it's been a few weeks since we did this, so I'm a little fuzzy. I'm supposed to find the zeros, relative extrema, and inflection points of f(x) = x^3 - 6x^2 + 3x + 10. The zeros would be -1, 2, and 5 right? Then I would take

180. physics

The fist ball is thrown up ward with avelocity of 20m/s at the same instant. The second ball is dropped at 40m hight from the first ball at what time the two ball collide each other?

181. Language Arts

On the sentence, "The choir sat/set their hymnals on the bench." Would the correct verb be set?

182. Chem

Can someone explain the difference or how to tell between internal/external standard, standard addition and how it relates calibration standards?

183. Economics

what is an economist view on this statement "It is not from the benevolence of the butcher, the brewer, or the baker that we expect our dinner, but from their regard to their own interest."

184. plz plz plz help in science

An elastic object strikes to ground and compress when it touches the ground. What is energy transformation? a- gravitational to electric b- electric to gravitational c- A ---Answer i don't know which one is right for the second one. A study shows treatment

185. statistics

A consumer at a bread factory would like to know if there are differences (gender) in bread preferences. Forty adults were randomly selected and asked the following questions: Which type of bread do you prefer? They were instructed to only pick one bread

186. statistics

A researcher has collected statistics pretest scores for students representing 3 different age groups 18-30 31-45 45 and up 3 5 10 7 10 2 9 9 8 6 8 8 4 6 5 Do hypothesis test using ANOVA to find if significant difference. Use alpha .05. All hypothesis

187. MATH

Show that the direct sum of two integral domains (E and H) is never an integral domain.

188. algebra

a sample of 144 firecrackers contained 8 duds how many duds would you expect in a sample of 2016 firecracker.

189. math

a refreshment stand at the fair was open for 3 hours. four people each took turns working at the stand for the same amount of time hoe many minutes did each person work ?? HELP PLEASE !!!

190. calculus

what is the domain of f if f(x)=2cos(4x+pie)-1

191. Chemistry

Element X has three isotopes, ^22X, ^23X, and ^25X. The relative abundances are 60%, 35%, and 5% respectively. What is the average atomic mass foe element X? Show Work Please :)

192. Math for Liberal Arts

You have a 5 minute hour glass and an 8 minute hour glass. You need to cook something for exactly 9 minutes. How will you use the two hour glasses to determine the exact time? There is no way to determine where the halfway mark is with the hourglasses.

193. English

I left out the last two sentences. Thank you. 1) Walton is the double of Frankenstein since he manifests the same ambition, the wish to overcome (go beyond is possible?) human limits in his travelling towards the unknown. 2)Frankenstein and his creature

194. precalc

write 196x^2-256y^2+17=12561 in standard form, show work.

195. COM

What should you consider when searching for useful sources? How do you know when sources are reliable? What are some red flags that indicate you should avoid a particular source?

196. Algebra

Can anyone solve this PPPPPlease 5/x-3 + 2/x+3= -7x/x^2-9

197. Language Arts

having some trouble deciding between which verb completes the sentence. Would it be "A bell lays or lies on its side? Also having trouble on the sentence, "The piano sets or sits on a platform." Thanks...

198. Physics

True or False: If a sphere of mass M and radius R and a cylinder of mass M and radius R start rolling down a ramp from the same location at the same time, they both reach the bottom of the ramp at the same time.

199. English

Could you please check these sentences? Thank you. 1) Prospero lost his dukedom because of a plot set up by his wicked brother Antonio together with the king of Naples. 2) Prospero is not native to the island. 3) Thanks to his magic art Prospero subdued

200. chemistry

What is the pH of 14g of Ca(OH)2 dissolved to 350ml

201. math

Aimi is making Valentine's Day cards for everyone in her class. She plans to use a whole sheet of paper for each of her 5 closest friends. She will use 1/2 of a sheet of paper for everyone else in the class. She has 15 sheets of paper. How many cards can

202. History

Why Do You Think It Was Hard For Spain To Maintain It's Empire ?

203. English

what is the complete subject and complete predicate on the following sentances 1. Angela's favorite program changes the colors and sixes of images. 2. Graphic artists can choose a percentage of red, blue or yellow. 3. They can also focus a photograph, or

204. English

e.g. He has a sweet car. (What is the meaning of 'sweet' in the sentence?)

205. Trig

How do you find cosine, tangent, and cotangent periods?

206. math

Jackie is making window curtains for her window.Each curtain will be 108 inches long.Fabric is sold in yards.What is the length of each curtain in ysrds? A. 3 yards B. 9 yards C. 27 yards D. 36 yards

207. Math- Really need help!

A consumer at a bread factory would like to know if there are differences (gender) in bread preferences. Forty adults were randomly selected and asked the following questions: Which type of bread do you prefer? They were instructed to only pick one bread

208. socials

UN which was United Nations was to keep peace, but how it not work? It not tell us that.

239. English

Is it "'un-acknowledged" or "unacknowledged" or neither of these and there is no such word? (I'm trying to write an essay.) Thanks!

240. math

Estimate each product: 3.87 X 25=

A researcher has collected statistics pretest scores for students representing 3 different age groups 18-30 31-45 45 and up 3 5 10 7 10 2 9 9 8 6 8 8 4 6 5 Do hypothesis test using ANOVA to find if significant difference. Use alpha .05. All hypothesis

242. Algebra

Solve: squareroot 2x-1 - squareroot x+3 = 1 please show steps

243. Algebra

Solve by completing the square: x^2-6x+3=0 please take me step by step

244. pigskin

I need help with week 14 please!!

245. trig

By expressing 3x as (2x + x) prove that cos3x = 4cos^3x - 3cosx

246. english

Fill the bags with donated gifts for the orphanage. The word BAGS is what kind of compliment? I.e. predicate adjective, direct object, indirect object, predicate nominative

247. Algebra 1 Concepts and Skills

"Write Equation of a line" USE: Y-Y1=M (x-y1); replace(x1,y1) and M. How would I take that formula and use it on a problem like,,, y-2=-5(x+6)??????

248. Agriculture marketing

How can you use the Futures Market Information for “store or not to store” decision when it comes to grains?

249. physics

You throw a 1kg ball out of a window 12 meters above the ground with horizontal speed. It lands on the ground 5 meters from the building after 1 second. Ignore air resistance, A) How fast did you throw the ball? B) What was the ball's initial velocity? C)

250. physics

You throw a 1kg ball out of a window 12 meters above the ground with horizontal speed. It lands on the ground 5 meters from the building after 1 second. Ignore air resistance, A) How fast did you throw the ball? B) What was the ball's initial velocity? C)

251. math 208

the number N of state and federal inmates in millions during year X, where X> 2002, can be aproximated by the formula N= 0.03x - 58.62. determine the year in which there were 1.5 million inmates

252. Math

Do you have any ny state number and operation booklets for 7th graders.

253. socials

[4:06:00 PM] shreya2010: question: Helping my brother Mohammad. What was foreign policy of canada in 1950's and 1970's.We are not sure what policy was. 1950's canada policy was to stay with u.s no matter what lend hand whenever they ask. and in 1970, it be

254. math

how to find the first three zeros to the right of origin in a sinusoidal function?

255. Algebra

HELP!!!!!!!If 59 people use 15,045 cans in 1 year. How maNY CANS are used in a city with a population of 1,562,000???

256. English

In a slang expression, what is the use of 'chilling'? 1. play with friends 2. hang out (with friends) 3. cool, excellent Which one is right?

258. math

The trigonometric function sin(-8 x) is equal to one of following:

261. math

What is the length of this piece of string measured to the nearest 1/4 inch.

263. pharcare

human development and its dominant characteristics,please give me the link I can't find it.thanks:)

264. Science

How do fluids move towards rocks??? plz answer me :D

265. psychology

What are the effects of type of processing and channel of presentation on recall of words? HELP!!!!!!!!!!!

266. Gov

Who is sometimes viewed as 2nd powerful federal official after the president?

267. Physics

Why did the chicken cross the road?

268. social studies

two primary resources we can use to understand the culture of canada's first nations and inuit before the arrival of the first explorers.

269. Algebra

Solve (x-1)^2 = 16 please show steps

270. Can anyone do statistics?

I am trying to get help with my statistic hw. There are ANOVA test and hypothesis testing. If someone is able to help me please let me know! So far noone has been brave enough!

Y+3/2Y-5=6/7

272. Math

Find the accumulated value of quarterly deposits of three hundred dollars each immediately after the 32 deposit If the deposits earn 10% quarterly for the first five years and 12% for the last three years.

273. algebra

how high is a tree that casts a 30ft shodow at the same time a 12ft pole casts a shodow which is 6ft long

274. math

Divanna scored 67% on her last test, If she had paid closer attention to signs, she would have had 2 more problems right and would have scored 80%. Write the expression for how many problems in all she would have answered correctly.

275. chemistry

Jenny please show me in better detail the set up of the answer.

276. algebra

question can u answer 6x + 12 = 30

277. chemistry

a gas solution contains 5 moles H2 and 10 moles of oxygen. what is the mole fraction of hydrogen and oxygenin the solution formed?

278. math

What is the length ofthis piece of string measure to the mearest 1/4 inch? A. 1 3/4 B. 2 1/4 C. 2 3/4 D. 3 1/4

279. Scientific Method sort of relating to science

What are Two Factors that can affect how fast water evaporates?

280. science

what are some good high school science fair project ideas that i can do in one month?

281. oceanography

how did the ocean form?

282. Social studies

How can I study my Western states for a test

283. English

Is it correct to use the simple past when referring to Poe's ideas and the present when referring to the characters in his tales? 1) Poe believed(simple past) that this impulse, which was hidden in every material and spiritual portion of the universe,

284. math

Hi would you please show how to know if the function is differentiable or not ? please show me the answer with examples

285. political science

why don't the presidents use the cabinet as a board of directors?

286. MATHS

a gun is fired at a distance of 24.3km away from man. he hears the sound after 27 second. find the speed of sound at which it travels.

4x+y

289. confidentiallity in allied health

when should the computer bureau destroys or erases records,should the erasure be verified by the bureau to the physician?

290. English

In a slang expression, what is the use of 'chilling'? 1. play with friends 2. hang out (with friends) 3. cool, excellent Which one is right? English - Ms. Sue, Tuesday, December 13, 2011 at 8:38pm 2. is correct. ----------------------- Thank you. What is

291. math 208

what year did were there 1.5 million inmates in the state and federal prisions

3(d+2)-d=16

30=3c+2(3c-3

294. math

7k-8k=1 how would you do this?