# Questions Asked onSeptember 13, 2012

1. ## physics

in 1993 bicyclist rebecca twigg of the united states traveled 3.00 km in 217.347 s suppose she travels the entire distance at her average speed and that she then accelerates at -1.72 m/s2 TO COME TO A COMPLETE STOP AFTER CROSSING THEfinish line hoew long

2. ## 7th Grade Lit

We brought healthy snacks. What is the complement in the sentence? brought?

3. ## Physics

A jogger runs eastward in a straight line with an average speed of 2.25 m/s for 4.98 min and then continues with an average speed of 1.58 m/s for 2.18 min. (Hint: time is in minutes and velocity is in meters/second) (a) What is her total displacement (in

4. ## English

could someone explain this quote please? I have the idea but my words fail to express it in a correct explanation. The words I use don't fit the explanation very well. (: "...he whose inward and outward senses are still truly adjusted to each other..."

5. ## physics

A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given by x = 19.4t and y = 3.72t − 4.93t2,where x and y are in meters and t is in seconds.

6. ## math

lim delta x to 0 of sin[(pi/6)+delta x]-(1/2) all divided by delta x hope i made that clear. hint given: sin(theta+gamma)=sin theta cos gamma+cos theta sin gamma sorry not sure where to start on this one

7. ## Chemistry

In the condensed structure CH3CH2CHCH double bonded to CHCH(CH3)2 ! CH3 What does it mean when the CH3 is in () followed by the 2?

8. ## history

Which of the following is true of President G. W. Bush? A. He vowed to punish all countries sponsoring terrorism. B. He rejected unilateralism. C. He accepted the United States' role in the International Criminal Court. D. He reluctantly endorsed the Kyoto

9. ## math

6.6*10^-4 --------- = ? 9.54*10^-7 in scientific notation form 3-4 digit answer is required

10. ## math

Ms.sue may I just know the curtisy of why you help students on this website for years are you a retired algebra teacher

11. ## math

if f(X)is 956,what does x have to be?show all steps

12. ## Spelling

What does galleon mean?

13. ## Algebra

What is the square root of -25? Can you please write out the steps of finding it?

14. ## Bio

Assume that a cell culture has a density of 108 cells/mL. You transfer 20 microliters (20 L) of this culture onto a microscope slide. How many cells do you expect will be in this 20 L drop you placed under the microscope?

15. ## Math(Please check)

This is the same equation as before just with different numbers. y=yo + (vo sin Q) t - 1/2gt^2 This time the numbers are: 0 = 1.005 + (3.021 sin 30)t - 1/2(9.8)t^2 4.9t^2 - 1.5105 - 1.005 = 0 This is the part where I am stuck. Did I do this correctly? sin

16. ## College Algebra

What do I do to graph: (x-2)^2+(y-4)^2=9

17. ## science

find the density of metal cylinder if the diameter is 3.02mm and the height is 0.00591km in cm3 the mass of the cylinder is 0.847hg

18. ## 7th Grade Lit

Complements in the sentences. the snake looks hungry- hungry the lizard seemed stunned- stunned its skin is scaly- scaly scales cover a snakes body- not scales or cover, is it snakes? Josh will feed Lizzy- not will or feed, is it Josh? we will photograph

19. ## chemistry

vinegar/water = 0ml/35ml initial mass (g) = 82.420 final mass with AS(g) = 84.925 How do I figure out initial mass of AS (g)= mass of CO2 evolved = moles of CO2(moles)= Mass of NaHCO3 (g)=

20. ## Chemistry

I have a question regarding the titration curve. When the ph is equal pKa that mean there are equal amount of conjugate acid to conjugate base. When a weak acid dissociates for example H3Po4 H+ H2PO4- My problem: I don’t understand how the ph rises

(x)+6=18

22. ## statistics

The data set healthy breakfast contains the ratings of 77 cereals and the number of grams of sugar contained in each searving. A simple linear regression model considering Sugar as the explanatory variable and Rating as the response variable produced the

23. ## physics

an apple is dropped from the top of a building 75 m tall. at the same time a mango is thrown vertically up from the foot of the building with a velocity 30m/s. when and where will the apple and the mango meet?

24. ## Physics

A car slows from 17 m/s to 2.0 m/s at a constant rate of 2.1 m/s2. How many seconds are required before the car is traveling at 2.0 m/s?

25. ## physics

a ball is thrown vertically upward from the top of the building with a velocity 10m/s.it reaches the ground in 5 sec.Find the height of the building the ball strikes the ground?

26. ## Physics

Determine the final velocity of a proton that has an initial velocity of 2.15x10^5 m/s, and then is accelerated uniformly in an electric field at the rate of -1.10x10^12 m/s2 for 1.20x10^-7 s.

27. ## calculus maths

y=lnlog base2 x

28. ## Chemistry --- chemistry ---

what is the difference between an atom and an ion ???

29. ## statistics

Pre- study scores versus post- study scores for a class of 120 college freshman english students were considerated. The residual plot for the least squares regression line showed no pattern. The least squares regression line was y^=0.2+0.9x withwith a

30. ## statistics

A teacher was interested in how many text messages teenagers got per day. He randomly selected 70 students and asked them how many text messages they reveived the previous day.?

31. ## statistics

On a given day the NYSE opening price per share for the 100 largest U.S. corporations has a mean of \$385 and a median of \$92. We can conclude A. The distribution of the price per share is symmetric, B. The distribution of the price per share is skewed to

32. ## fluid power

assume that the input piston has an area of 4.25 inches squared with a force of 3150 pounds what is the pressure in the system

33. ## statistics

On a given day the NYSE opening price per share for the 100 largest U.S. corporations has a mean of \$385 and a median of \$92. We can conclude A. The distribution of the price per share is symmetric, B. The distribution of the price per share is skewed to

34. ## maths

mrs tan bought 10 kg of rice .if she cooked 400g of rice everyday how many days did the bag lasts?

35. ## Math Ratios

Peter & Sam won some money in a competition. Peter won 5 times as much money as Sam. Sam won \$4200 less than Peter. a. What was the ration of the amount of money Peter won to the amount of money Sam won to the total amount of money both boys won? b. What

36. ## Math Ratios

The ratio of the number of pupils in Class A to the number of pupils in Class B is 2:5. The ratio of the pupils in Class B to the number of pupils in Class C is 10:3. a. Find the ratio of the number of pupils in Class A to the number of pupils in Class B

37. ## math

What numerical expression for 31 increased by 14?

38. ## Physics

A boat with a horizontal tow rope pulls a water skier. She skies off to the side, so the rope makes an angle of 15.0° with her direction of motion, but in the same direction as the boat is traveling. The tension in the rope is 160 N. How much work is done

39. ## Math Ratios

The ratio of the length of a parallelogram to that of its breadth is 7:4. The length is longer than the breadth by 746.1 cm. Find the perimeter of the parallelogram

40. ## Math Ratios

The ration of the length of a rectangle to its breadth is 9:4. If the perimeter of the rectangle is 104 cm. find the area of the rectangle.

41. ## Statistics

If the interest rate is 3% and a total of \$4,370.91 will be paid to you at the end of 3 yrars, what is the present value of that sum? my answer: \$4,ooo.oo

42. ## English

What are some poetic devices used in Miley Cyrus' The Climb" and explain.

43. ## algebra

A rectangle has a length that is 5 feet more than its width. The area of this rectangle is 84 square feet. What is the width and length of this rectangle?

44. ## physics

if a wire of length 12cm it stress up to 25m what will be the final resistance .it initial resistance is 16ohm?

45. ## Ms.Susu's math

someone tell me what website to go on and find x+z-h=___

46. ## Algebra

three numbers are such that the second is the difference of three times the first and 6 while the third is the sum of 2 and 2/3 the second. The sum of the three numbers is 172. Find the largest number.

47. ## science ( biology)

What are the various method a farmer should do to increase his land fertility by spending less money ???

48. ## Health

What is bone strengthening? A. Activities that produce a force on the bones that promote bone growth and strength B. Activities that produce greater elasticity of joints C. Activities that heal injuries and diseases associated with the bones D. None of the

49. ## health

what is intensity?

50. ## arithmetic

A water tank can hold 56 1/4 litres of water .How much water is contained if it is 8/15 full?

asked by sreemonti mukherjee
51. ## PHYSICS

A Cessna 350 must reach a speed of 35 m/s for takeoff. If the plane accelerates at a steady 3.8 m/s2, how long must the runway be?

52. ## statistics

Suppose that a random variable, X, follows a Normal distribution. Specifically, X~N(10, 4). What is the value for the standard deviation

53. ## history

What writing convention does Jonathan Edwards use to persuade his audience?

54. ## statistics

Suppose that a random variable, X, follows a Normal distribution. Specifically, X~N(10, 4). What is the value for the standard deviation

55. ## Calc

What is lim (x -> 0) of (e^x) / x Thank you!!

56. ## ALGEBRA

Solve 10x + 75 = 150. Round your answer to the nearest hundredth. A. x ¡Ö 1.63 B. x ¡Ö 1.56 C. x ¡Ö 1.75 D. x ¡Ö 1.88

57. ## Geometry

Please explain how to work this problem: A pair of earrings has blue wedges that are all the same size. One earring has a 25 degree yellow wedge. The other has a 14 degree yellow wedge. Find the angle measure of a blue wedge. How do the angle measures of

58. ## Geometry

Solve for x. Find the angle measures to check your work. m

59. ## Pre-Calculus

Need help with this question, don't get it. Given the relation x^2+3x=y^2-2y, what is the new relation if it has undergone: A. vertical expansion by 2 B. Horizontal expansion by 3 C. Vertical compression by 4/5 D. Horizontal compression by 1/5 E.

60. ## Law and Ethics in Allied Health Essay

The U.S. Supreme Court case that applied the right to privacy to abortion is

61. ## science

How does the location of each animal's position in relation to the producers contribute to their size? Be sure to look at the food chain and the amount of energy that is being transferred between the levels.

asked by maria gimenez
62. ## Physics

The ball is thrown vertically upwards from the height of 14.1 meters. It takes 3 seconds till the ball hits the ground. What is the initial speed of the ball?

63. ## earth science

The gently sloping shallow area that extends from the continental shore is the called the continental?

64. ## Psychology

Where are selfish impulses? Examples of social conscience?

65. ## word power

2. Which one of the following words has a negative connotation? [A. Pedagogue] B. Inoculate C. Ophthalmological D. Taxidermy

66. ## word power

14. Michael is entirely _______ in gambling. A. noninterested B. disinterested [C. uninterested] D. misinterested

67. ## physics kinematics

A red car and green car , identical except for their colours move towards each other in adjacent lanes . At time=0 , the red car is at x=0m and the green car is at x=220m . If the red car has a constant velocity of 20km/h the cars will meet AR x=44.5m and

asked by HW HELP THANKS
68. ## Physics

A ball is thrown from a point 1.1 m above the ground. The initial velocity is 20.0 m/s at an angle of 32.0° above the horizontal. (a) Find the maximum height of the ball above the ground. (b) Calculate the speed of the ball at the highest point in the

69. ## word power

17. Psyche, the Greek root of "psychology" and "psychosis" means A. diseased condition. [B. mind or spirit.] C. medical healing. D. mystical healing.

70. ## word power

18. John and I are going to the store. Would you like to come along with [A. me and him?] B. I and him? C. him and I? D. him and me?

71. ## math

A deck is being built around a rectangular swimming pool. The swimming pool is 20 ft × 12 ft and the deck has a uniform width of 6 ft. What is the area of the deck only?

72. ## Math

I need help solving a problem, I am stuck on this one. Write 128 in each one of the following bases a.Five b. Two c. Twelve

73. ## Social Studies

I need help summarizing this article Unbreakable by adam weinstein

74. ## science

If a driver starts out her drive from rest (0m/s) and is traveling at 19.6 m/s two seconds later before entering the water, what was her acceleration?

75. ## Chemistry

prepare some 0.1 HCl by diluting the appropriate volume of stock 'conc' HCl to 1L. The stock acid is 37.4% HCl by weight and has a density of 1.19g/mL . Measure out the required volume with a graduated clyinder

76. ## math Help plz

Noah and Brianna want to calculate the distance between their houses which are opposite sides of a water park. They mark a point A, 120m long the edge of the water park from Briannas house. The meansure

asked by Danielle D
77. ## Maths

the distance, s metres, traveled by a car in t seconds after the brakes are applied is given by s=10t -t^2. Show that it's acceleration is constant, find the the distance the car travels before it stops?

78. ## math HELP plz

Richard is standing between two buildings in a townhouse development. The building on the left is 9m away and the angle of elevation to its security spotlight, A, is 68 degree. The building on the right is 6m away and the angle of elevation to its security

asked by Danielle D
79. ## Math

a balloon is rising vertically at the rate of 2 m/s. an observer is standing on the ground 100m away from a point directly below the balloon. at what rate is the distance between the observer and the balloon changing when the balloon is 160m high?

80. ## english

the chess competition ended right on time.is it pronoun or noun

81. ## calculus

Calculate the following integral: ∫ (square root(9x^2 - 16)) / x^2 I found: ∫ (square root((3x)^2 - (4)^2)) / x^2 x = a sec0 3x = 4 sec0 x = 4/3 sec0 dx = 4/3 sec0tan0 d0 4/3 ∫ [(square root(4sec0)^2 - 16)(sec0tan0 d0)] / x^2 I'm lost from here and

82. ## criminal justice ethics

Define social contract and explane the different views of Hobbs and Locke.

83. ## Math & Chemistry

I having problems converting my answer to just cm. Given: Average Velocity = 1 m/s Water per day = 6,000 m^3/day Want to find the diameter of fluid flow. I am using the equation: D = sqrt(4*q)/(pi*v) q= volumetric flow rate (6,000 m^3/day) v= velocity (1

84. ## Physics

Jen drops a ball with a mass of 0.100 kg from a height of 20.0 m The initial downward velocity of the ball is 5.00 m/s. What is the kinetic energy of the ball after it has fallen 10.0 m?

85. ## Health and Nutrition

What are the major components of protein, the dangers that exist with inadequate amounts of protein, and the risks associated with excessive intake?

86. ## 7th Grade Math

They started at the 34 yard line. They need to get to the 44 yard line for a first down. On the first play they lost 12 yards and on the 2nd play they lost 8 more yards. It is now 3rd down. Please help me. Thank ya

87. ## Lang. Arts

Identify the term that correctly identifies the capitalized word(s) in each sentence. 7. LISTENING TO THE MIX CD MY BROTHER MADE FOR ME, I began to hope he would make me another. a. adverbial phrase b. gerund phrase c. infinitive phrase d. participial

88. ## Math

Can somebody give me three examples of opposites? Kinda like night and day, north and south, just not those. Please? Thank ya, I'd appreciate it.

89. ## english

Identify the term that correctly identifies the capitalized word(s) in each sentence. 7. LISTENING TO THE MIX CD MY BROTHER MADE FOR ME, I began to hope he would make me another. a. adverbial phrase b. gerund phrase c. infinitive phrase d. participial

90. ## math

I have 8 ones and 2 hundreds. I am between 270 and 280. what number am I?

91. ## Physics

A tennis ball is thrown horizontally from an elevation of 20.60 m above the ground with a speed of 19.0 m/s. (a) Where is the ball after 2.00 s for the horizontal and vertical position? (b) If the ball is still in the air, how long before it hits the

92. ## history

With the vital assistance of _______, Theodore Roosevelt established the first comprehensive national conservation policy

93. ## math

The height h, in feet, of a ball above the ground t seconds after being thrown upward with a velocity of 48 ft/s is given by . After how many seconds will the ball be 35ft above the ground?

94. ## english

can you pl answer the following : 1.Please send all applications by post change into passive voice 2."Dont you want to start before it gets too dark ? into reported speech 3.i was scolded for little mistakes when i was a boy I hated it. answer:I hated ....

asked by R S Telagathoty
95. ## Physics

From the edge of the rooftop of a building, a boy throws a stone at an angle 20.0° above the horizontal. The stone hits the ground 4.60 s later, 104 m away from the base of the building. (Ignore air resistance.) What is the maximum height H reached by the

96. ## Math

I have to calculate the percent error for my experiment and I just wanted to make sure that I am doing it correctly. My value was 1.376 and the accepted value was 1.371 so I did [1.376 - 1.371] / 1.371 = 0.0036 X 100 = 0.36% Did I do this correctly?

97. ## math

what is y times y? 2y?

98. ## physics

A small sphere with a charge of 2.40 is attached to a relaxed horizontal spring whose force constant is 90.0 . The spring extends along the axis, and the sphere rests on a frictionless surface with its center at the origin. A point charge is now moved

99. ## math

a square storage bin measures 15 feet on a side filled with corn

100. ## Education

Design a series of three presentations/activities for parents and students at your school wherein cultural diversity is honored and respected. Your plan should include a purpose for each activity, a description of the target group you are addressing, an

101. ## math

word form for 34,235,345

102. ## Math

1. (6.0 x 10^5) x (3.0 x 10^4) = a. 18 x 10^20 b. 18 x 10^9 c. 1.8 x 10^20 d. 1.8 x 10^9 2. (5 x 10^-2) ÷ (2 x 10^3) = a. 2.5 x 10^-5 b. 2.5 x 10^-1 c. 25 x 10^1 d. 25 x 10^2 3. (2.56 x 10^6) x (3.56 x 10^2) = a. 9.1136 x 10^12 b. 91.136 x 10^8 c. 9.1136

103. ## statistics

IQ scores are normally distributed with a mean of 105 and a standard deviation of 18. Assume that many samples of size n are taken form a large population of people and the mean IQ score is computed for each sample. If the sample size is n=64, find the

104. ## history

What caused the rapid population growth of homo sapiens

105. ## health

Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth

106. ## chemistry

an essay on use of radon in prediction of earthquakes

107. ## Math

1. What is the product of (5.1 x 10^3) x (3.2 x 10^3)? a. 16.32 x 10^6 b. 1.632 x 10^7 c. 16.32 x 10^9 d. 1.632 x 101^0 2. What is the product of (7.28 x 10^-2) x (9.1 x 10^-2)? a. 6.6248 x 10^-3 b. 66.248 x 10^-4 c. 6.6248 x 10^4 d. 66.248 x 10^-3 3. What

108. ## math

The coffee shop shop has nine apple pies cut into fourths. Each piece sells for \$1.50. How much are all the pieces worth?

109. ## writing

Can someone check my answers for me? True or False... 1. TRUE you should use a comma before the word “and.” 2. FALSE The following is a sentence fragment: It no longer flies. 3. TRUE In the following sentence, the ()'d word is used correctly: The

110. ## math

A trucker is looking on a map of two roads he could take to get to Nelson. One has a grade of 20% and the other has an elevation of 15 degrees. Which road would be steeper? How do I figure this out?

111. ## english

life is full of choices, so i must learn to make good ones.life is a noun choices which other one

112. ## physics

A river flows due east at 2.00 m/s. A boat crosses the river from the south shore to the north shore by maintaining a constant velocity of 11.0 m/s due north relative to the water.

113. ## physics

An airplane flies 200 km due west from city A to city B and then 270 km in the direction of 31.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C?

114. ## math

what are the four step in solveing an equation? I thought it was "pemdas" but i was woprnd is that just one of the steps?

115. ## physics

A) A ball is thrown vertically upward with a speed of 27.6 m/s from a height of 1.9 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s2. Answer in units of s B) How long does the ball take to hit the ground after

116. ## math

1. What is the product of (5.1 x 10^3) x (3.2 x 10^3)? a. 16.32 x 10^6 b. 1.632 x 10^7 c. 16.32 x 10^9 d. 1.632 x 101^0 2. What is the product of (7.28 x 10^-2) x (9.1 x 10^-2)? a. 6.6248 x 10^-3 b. 66.248 x 10^-4 c. 6.6248 x 10^4 d. 66.248 x 10^-3 3. What

5a-4=6a+12

118. ## Chemisty/Physic

How can I find the pipe diameter when given the velocity = 1 m/s and the volumetric flow rate = 6000 m^3/day and flow area = 6000 m^2/s So that everything cancels leaving me with meters so I can write my answer in cm.

119. ## science

what is the density of liquid in a baloon that weighs 20N on a spring scale if the baloon has a volume of 0.75L what is the liquid density g/ml

120. ## plz help ms sue

1. What is the product of (5.1 x 10^3) x (3.2 x 10^3)? a. 16.32 x 10^6 b. 1.632 x 10^7 c. 16.32 x 10^9 d. 1.632 x 101^0 2. What is the product of (7.28 x 10^-2) x (9.1 x 10^-2)? a. 6.6248 x 10^-3 b. 66.248 x 10^-4 c. 6.6248 x 10^4 d. 66.248 x 10^-3 3. What

121. ## chemistry

It takes 62 mL of 0.124 M KOH to neutralize46.7 mL of H2SO4 solution. What is the concentration of the H2SO4 solution?

122. ## science

what is it called when a moving object shows a(n) (blank) in speed with time

123. ## physical science

what is the density of a peice of wood that has a mass of 25.0 grams and a volume of 29.4cm cubes?

124. ## Math

One road has a grade of 20% and the other has an elevation of 15 degrees. Which road would be steeper? How do i figure this out?

125. ## HIT 212

A 58 yr old patient with rectal bleeding was seen in the office of a gastroenterologist provide advice about this case. The specialist conducted a comprehensive history and exam, and medical decision making was high. The consultant documented his findings

126. ## chemistry

What volume of 6.58 M HNO3 is required to prepare 671 mL of a 2.7 M HNO3 solution?

127. ## chemistry

What mass of MgSO4 · 7H2O is required to prepare 300 mL of a 0.61 M MgSO4 solution? Answer in units of g

128. ## PHYSICS

A speeder passes a parked police car at a constant speed of 25.1 m/s. At that instant,the police car starts from rest with a uniform acceleration of 2.86 m/s^2. 1) How much time passes before the speeder is overtaken by the police car? Answer in units of s

asked by Willow Newman
129. ## ap chemistry

What volume of 6.58 M HNO3 is required to prepare 671 mL of a 2.7 M HNO3 solution? Answer in units of mL

130. ## math

Reboot, Inc. is a manufacturer of hiking boots. Demand for boots is highly seasonal. In particular, the demand in the next year is expected to be 3,000, 4,000, 8,000, and 7,000 pairs of boots in quarters 1, 2, 3, and 4, respectively. With its current

131. ## chemistry

It takes 62 mL of 0.124 M KOH to neutralize 46.7 mL of H2SO4 solution. What is the concentration of the H2SO4 solution? Answer in units of moles/liter

132. ## Math

HOW MANy DIDGETS ARE IN THE Graham's number NOT INCLUDING COMMAS?

asked by The Curse Word Destroyer, age 11
133. ## chemistry

How many milliliters of 5.5 M HCl must be transfered from a reagent bottle to provide 23 g HCl for a reaction? Answer in units of mL

134. ## chemistry

Sulfuric acid (H2SO4) is a very strong diprotic acid. If 0.062 moles of sulfuric acid is mixed with water to make 200 mililiter of solution, what is the molarity of H+? Answer in units of M

135. ## chemistry

We have an aqueous solution that contains 47% (by mass) of a hypothetical solute Z. The formula weight of the solute Z is 209 g/mol. The density of the solution is observed to be 1.3 g/mL. What is the molarity of Z in this solution? Answer in units of

136. ## chemistry

When 0.025 moles of aluminum sulfate are dissolved in enough water to make 115 milliliters of solution, what is the molarity of sulfate ions? Answer in units of M

137. ## Algebra

Word problem: The sum of two numbers is 26.4. One number is five times the other number. Find the numbers. It's probably: x+y=26.4 x=5y But, I could be wrong and I don't know where to go from there.

138. ## chemistry

Calculate the molality of CsCl in a 19% by mass aqueous solution.

139. ## Finance

200 million common stock price is \$50 per share and market value added (MVA) is 30 million how many common shares are current outstanding.

140. ## math

my daughter is working on 5n + 2n - (3-10N) can someone walk me through how to solve problems like this I have not been in school in over 20yrs. I think you have to work () first? but really do not know HELP please thank you

141. ## math

step by step on how to calculate the annual payment on a loan with a million dollar loan, the interest rate is 6.5% for 10 years.

142. ## physics

A ping pong ball is rolling across a table at 2.1 cm/s. When the ball is 1.32 m away from the edge your little brother starts to blow on it. If the little doofus hopes to prevent the ball from falling off the edge, what minimum acceleration must be

143. ## math

The bottom of the ladder is 5 feet tall from the wall. the ladder is 13 feet long. about how high is the wall?

144. ## biology

how does a dictionary illustrate a form of classification?

145. ## physics

How many times as large a centripetal acceleration is required of a car rounding a curve at 45.1 MPH as for one rounding the same curve at 10.8 MPH? That is, what is the ratio of the centripetal acceleration required for the faster car to the same for the

146. ## physics

Two bicyclists, starting at the same place, are riding toward the same campground by different routes. One cyclist rides 1040 m due east and then turns due north and travels another 1540 m before reaching the campground. The second cyclist starts out by

147. ## math

Your ladder is 26' long. The bottom of repunzel's window is 24 feet high. hOW FAR FROM THE TOWER SIDE SHOULD YOU PLACE THE BOTTOM OF YOUR LADDER TO RESCUE rA PUNZEL?

148. ## Algebra II

9x+y is less than or equal to 1700 9x+3y is less than or equal to 1800 4x+8y is less than or equal to 2400 ***I need help plugging in numbers for x and y. The numbers don't have to be the same for each question.

149. ## math

write a subtraction problem involovig regrouping that has ted reading 304 pages. answer your question

150. ## science

what are controls and variables?????????

151. ## Math 8R - Help!!!!!!!!!!!!!!!!!!!

14. Subtract -5 from -14 -14 - (-5) 16. Subtract -6 from 18 18 - (-6) 18. From 14 subtract -2 22. Subtract 17 from 8 I already know how to solve this just have trouble formatting it. How do I do it for number 18 and 22???? Please help

152. ## algebra

what size paper cup shoud you use to make the most money? How much money will you make if you sell all of the lemonade if you have 15 gallons of lemonade to sell (1 gall = 3785 cm)

153. ## statistics 251

how do i find the standard deviation and sample variance for \$7448, \$4911, \$9051, \$6374, \$4227

i had to read these 2 passages on was a silly poem about birds ball and the othe was a passage about woodpeckers that was true ihave to give to thngs in common and 2 things different i am trouble giveing the different ones

155. ## math

in a lunch room 36 fifth graders and 27 fourth graders are siting in equal groups. all the students in each group are in the same grade. what is the greatest number of students that can be in each group?

156. ## Physical Science

waves moving on a lake have a speed of 2.0 m/s and a distant of 1.5m between adjacent crest. what is the frequency of the waves? find the period of the wave motion?

157. ## 7th Grade Science

Identify 5 characteristics common to plants and describe them?

158. ## math

in a lunch room 36 fifth graders and 27 fourth graders are siting in equal groups. all the students in each group are in the same grade. what is the greatest number of students that can be in each group?

159. ## Math /Algebratic thinking

If the product of two whole numbers greater than 1 is 63, what could th ewhole numbers be?

160. ## math

a 25 foot ladder leans against the wallit touches the wall 24 feet off the ground if you slide the base of the ladder back 10 feet off the ground how far does it slide down the wall?

161. ## math

a 25 foot ladder leans against the wallit touches the wall 24 feet off the ground if you slide the base of the ladder back 10 feet off the ground how far does it slide down the wall?

162. ## physics

Sheena can row a boat at 2.90 mi/h in still water. She needs to cross a river that is 1.22 mi wide with a current flowing at 1.55 mi/h. Not having her calculator ready, she guesses that to go straight across, she should head 60.0° upstream. (a) What is

163. ## Math

I'm a number grater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit could not be greater and it is. 1 more than my hundreds digit. What number am I?

164. ## math

how can i use a tether board to help me in math?

165. ## math

equation d=55h the distance a person drives when traveling 55mph. (h=time in hours, d+ distance in miles.Use equation to complete the table.)

166. ## Math

Use the following table to answer questions. x y 1 7 3 ? ? 11 7 13 ? ? What are the values of x and y in the last row of the table? What is the rule for this table?

167. ## Physics

A dolphin wants to swim directly back to its home bay, which is 0.85 km due west. It can swim at a speed of 4.30 m/s relative to the water, but a uniform water current flows with speed 2.83 m/s in the southeast direction. (a) What direction should the

168. ## physics

With an average acceleration of −1.6 m/s^2, how long will it take a cyclist to bring a bicycle with an initial speed of 13.3 m/s to a complete stop? Answer in units of s

169. ## geometry

what is the answer to 40 feet

170. ## college algebra

2x+y=-2 (1) x+y-z=-4 (2) 3x+5y+z=0 (3) solve the system need help quick!

asked by ann :)
171. ## math

there are 5 national parks in louisiana. mississippi has 7 national park. alabama has 5 national parks. think about adding those three numbers. which two numbers would you add first? why?

172. ## math (4th)

steven has a six digit number on his bike. A 2 is in the hundred thousands place, a 6 in the ones place, and a 1 in the hundredths place. Write two different numbers that could be on his bike

173. ## math

a checkerboard has 8 squares on a side. at the beginning of a game of checkers, each player has 12 checkers on a board. how many squares do not have checkers on them at the beginning of the game?

174. ## World History

How did civilized culture survive the rise and fall of regional states? During the Sumer, Babylon time period

175. ## Math

Malika read 36 to 40 pages of her book each day. Whichc ould be the total number of days it took for her to read all 228 pages of her book? A.2 B.4 C.6 D.8 E.10 C?

176. ## physics

A particle undergoes two displacements. The first has a magnitude of 160 cm and makes an angle of 105.0° with the positive x axis. The resultant displacement has a magnitude of 140 cm and is directed at an angle of 35.0° to the positive x axis. Find the

177. ## Chemistry

15.0 moles of gas are in a 6.00L tank at 298.15K. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300 L^2*atm/mol^2 and b=0.0430 L/mol. I found the idea gas

178. ## Math/algebra

Conrad taxi service charges \$1.50 for the first mile and \$0.90 for each additional mile. How far can Mr. Kulp go for \$20 if he gives the driver a \$2 tip. Write a let statement; represent the additional miles in terms of the total travelled. Write an

179. ## Math

Marian bought 17 dozen cookies for a school party. THe price of the cookies ranged from \$4 to \$6 per dozen. Which could be the total cost of the cookies not including tax? A.30 B.60 C.90 D.120 E.150 C? Mr.Emerson's truck travels an average of 18 milers per

180. ## Math

How many different arrangements of seven letters can you make if you have seven distinct letters

181. ## social studies

Which of the following islands or group of islands does NOT qualify as a state? a. Hawaii b. Japan c. Cuba d. Australia

182. ## math

Find all the values of x in the interval [0,2π] that satisfy the equation: 8sin(2x)=8cos(x)

183. ## physics

The basic function of the carburetor of an automobile is to atomize the gasoline and mix it with air to promote rapid combustion. As an example, assume that 31.0 cm3 of gasoline is atomized into N spherical droplets, each with a radius of 8.00 10-5 m. What

184. ## Math

How many seven-digit numbers are there when 0 and 1 cannot be the leading number?

185. ## adv algebra

name the property that each equation illustrates 83+6=6+83

186. ## Math

I am lost, need to know how to do these types of problems. How many one-to-one correspondences are there between the sets {a,b,c,d}and{1,2,3,4}if in each correspondence A. a and c must correspond to even numbers B. b must correspond to 3? C. b must

187. ## college algebra

12x+4y+2z=-7 (1) 3x-12y+6z=-4 (2) 9x-16y+4z=-3 (3) solve the system just need the steps how to do it

asked by ann :)
188. ## math

Tom has somee cubes that are two proudest cm on each side. How many of them will fit into a box that is a cube with each side four cm long?

189. ## math

are these numbers ordered from the least to the greatest 0,1.square route of 2.3/2.square root of 3

190. ## social studies

Does church qualify as a state?

191. ## math

how do i get the answer to this question. the base of an isosceles triangle is half as the two equal sides. write the area of the triangle as a function of the length of the base

(3x3-3)2%3+3

193. ## college algebra

12x+4y+2z=-7 (1) 3x-12y+6z=-4 (2) 9x-16y+4z=-3 (3) solve the system. show steps and answers i tried this problem really difficult

asked by ann :)
194. ## math

what is the value of |x+3|+5x-7 for x =9

195. ## math

x^2 < x+12 in interval notation. Im not sure how to work with the x^2

196. ## math

Nina walked 15 yards to Paul's house. They then went hiking. Which rule shows how many yards Nina walks for every yard Paul walks? A p=n+15 B n=p+15 C p=15-n D n=p-15

2/3x3/5

198. ## algerbra 2

the perimeter of the rectangular playing field is 462 yards. The length of the field is 5 yards less than the triple width. What are the dimensions of the playing field.

199. ## Physics

In an action movie, the villain is rescued from the ocean by grabbing onto the ladder hanging from a helicopter. He is so intent on gripping the ladder that he lets go of his briefcase of counterfeit money when he is 130above the water. If the briefcase

200. ## math

Find a formula for the inverse of the function. y = ln(x + 1)

201. ## S.S

How do I write a one page essay on 'If I were a settler, where would I settle and what would my surroundings be?'

202. ## algebra

three students are running a race .how different ways can they finish the race

203. ## Math

If there are 5 teams in one league and 6 teams in another league and if each team from one league plays one team from the other league once how many games are played?

204. ## Social Culture

I am trying to analyze and interpret the following quotation: The confrontation of Western civilization with other peoples whose values were often dramaticdally opposed to the West's..suggests that by the daWN OF THE TWENTIETH CENURY, THE TRADITION AND

205. ## Chemistry

I'm doing a chemistry lab called colorimetric equilibrium study of a complex ion. But I just have one question which is how to obtain CS which is the total stoichiometric molarity of thiocynate ion and CF which is iron (III) iron. Fe+3 + SCN --> Fe(NCS)^+2

206. ## AP US history

By violating the Navigation Acts and developing their own trading patterns, were the American colonies also creating their own mercantile system?

207. ## Chemistry

How can you predict the heat of combustion for a substance with no carbon atoms?

208. ## Math

Conrad taxi service charges \$1.50 for the first mile and \$0.90 for each additional mile. -How far can Mr. Kulp go for \$20 if he gives the driver a \$2 tip. -Write a let statement; represent the additional miles in terms of the total travelled. -Write an

209. ## physics

A boat that travels at a speed of 6.75 m/s in still water is to go directly across a river and back, as shown in the figure below. The current flows at 0.50m/s At what angles must the boat be steered? How long does it take to make the round-trip? (Assume

210. ## physics and intrumentation

A dose of 07ml contains 25.3 mCi @ 10:30 am. Use the information to answer all. A. What is the concentration of this dose? B. What was the original concentration at 8am? C. What would be the volume of a 25 mCi dose at 11:00am? D. whatis the ratio of

asked by l warrior
211. ## Math

During the past 6 weeks Sean spent between \$12 and \$18 for a lunch each week. Which could be the total amount that he spent on lunches for the past 6 weeks? A.Less than 80 B.between 60 and 120 C.between 120 and 180 D.between 180 and 240 E.more than 240 B?

212. ## world history

Compare and Contrast the various models of trading post empires that were created by the Europeans during the Early Modern Era. please help! thank you:)

213. ## Vocabulary

Does this sentence demonstrate the correct usage of the word "contrast"? One contrast between a laptop computer and an iPad is the iPad is smaller than a laptop computer.

214. ## English

Also, we thought wrongly that (she, her) sitting in for him would decrease our work load. Is the correct answer ( her )

215. ## grade six math

I am a number between 7 million and 8 million. All my digits are odd. All the digits in my thousand period are the same. All the digits in my units period are the same. The sum of my digits is 31. What number am i

216. ## physics

In a marathon race Chad is out in front, running due north at a speed of 3.87 m/s. John is 98 m behind him, running due north at a speed of 4.63 m/s. How long does it take for John to pass Chad?

217. ## Math

A diver is working 10 feet below the surface of the water. The gap between the water and the deck of his support barge is 1/8 of the total length of the air hose and 2/3 of the total length remains on the reel. What is is maximum working depth?

218. ## research

Define the distinctions between primary, secondary, and tertiary sources in a secondary search

219. ## Math

Conrad taxi service charges \$1.50 for the first mile and \$0.90 for each additional mile. How far can Mr. Kulp go for \$20 if he gives the driver a \$2 tip. Write a let statement; represent the additional miles in terms of the total travelled. Write an

220. ## physics

An object is released from rest on a planet that has no atmosphere. The object falls freely for 5.02 m in the ﬁrst second. What is the magnitude of the acceleration due to gravity on the planet? Answer in units of m/s can someone help me please? i tried

221. ## AP Calc

What are the zeros (roots) of the function 2x/((x^2)-1) ? Would it just be (0,0)? Thanks in advance!

222. ## ESL

What does statement of option mean?

asked by hannia option mean
223. ## 5th grade math

The moon is about 240.000 miles from Earth. What is this distance written as a whole number multiplied by the power of ten?

224. ## English

1. This tea is to go. 2. This tea is for here. (What is the part of speech of 'to go' and 'for here'? And what is the meaning of both?)

225. ## Math

Write two different multiplication problems that use the factors 4 & 5. Make one problem about arrays. Make the other problem about TIMES AS MANY.

226. ## physics

A car acclerates uniformly from to a rest to a speed 23.7 km/h in 6.5 s.Find the car travels during the time.(Displacement with constant uniform accleration).My only problem is the conversion

asked by A person

How do you determine the ymax? I know you have to use Q which I have values that were given to me as well as vo values but I am not sure what to do with these values.

228. ## algebra

algebra with pizzazz!In music,what does allegro means?

229. ## math

jane have 4 nickels, 6 pennies, 4 dimes, and 2 quarters. she picks a coin at random. what is the probability that she will pick a nickel or a dime/

230. ## math

A chemical distillation tower, 110 m high is supported by cables of length L that reach from the top of the column to the ground at a distance D from the base of the tower. If D is 1/3 the length of a cable, find L and D.

231. ## math

How many liters of gasoline are there in 165 gal (US) of a methanol-gasoline blend that is 11.0% by volume?

232. ## math

It is estimated that one third of one per cent of the Earth’s surface receives more energy from the sun than the total projected needs for the year 2014. Assuming the Earth’s surface to be 1.97 x 108 square miles. Find the area in acres.

233. ## Statistics

The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 167 and a variance of 9. The material is considered defective if the breaking strength is less than 158 pounds. What is the probability that a single,

234. ## math

what is the answer to "construct a segment whose length is EF - CD and by the way a segment symbol is above the EF and CD

10^4/5^2

236. ## physics

The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car?

237. ## Algebra

If n(A U B)=22, n(A ∩ B)=8, and n(B)=12, find n(A) If n(A)=8, n(B)=14 and n(A ∩ B)=5, find n(A U B)

238. ## PHYSICS help!!!!!!

An air-traffic controller notices two aircraft on his radar screen. The first is at altitude 850 m, horizontal distance 19.6 km, and 27.0° south of west. The second aircraft is at altitude 1100 m, horizontal distance 17.4 km, and 18.0° south of west.

239. ## geometry

I honestly need help on this question. Determine whether statement(3)follows from statements(1)and(2)by the law of detachment or law of syllogism.If it does,state which law was used.If it does not,write invalid. (1)If n is an integer,then n is a real

240. ## Calculus

Calculate the following integral: ∫ sec^4 (3x)/ tan^3 (3x) dx For this one, can I bring up the tan to tan^-3?

241. ## physics

Rocket-powered sleds are been used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 533 m/s in 2.45 s and can be brought to a stop again in 2.37 s. Find the acceleration of the sled while accelerating.

242. ## Help with Calculating Probabilities

Anon: Do you know how to calculate probabilities like P10, P20, P30...? I do not understand lot of this statistics stuff and desperately need help. Thanks

243. ## MATH, Calc

P=0.3e^0.08t find the rate of growth.

244. ## 7th Grade Math

a nanosecond is 0.000000001 of a sec. what is the length as a power of 10. Please help me. Thank ya.

245. ## 6th grade Math

I need some help figuring out how to work the word problem below. It says in 2000, the population of the United States was 280 million people. Between 1990 and 2000, the population grew by about 12%. What was the US population in 1990? The answer choices

246. ## math

(x+6)-(2x+7)-3x=-9

247. ## Science Struggle

Rocket-powered sleds are been used to test the responses of humans to acceleration. Starting from rest, one sled can reach a speed of 533 m/s in 2.45 s and can be brought to a stop again in 2.37 s. Find the acceleration of the sled when braking. Answer in

248. ## simple subject

what is the simple subject in this sentence Jenna enjoyed working and Patrick enjoyed work.

249. ## Math

A steel wire,when bent to form a square encloses an area of 484cmsq. If the same wire is bent to form a circle,find the area of the circle. Gve me ful sltn plz nd ans is 616cmsq.

asked by Simran kaur
250. ## Math

What is the rule for: Domain: 1, 3, 5, 7 Range: 1, 2, 3, 4 Thanks!

251. ## Math

A tile is in the shape of a parellogram of base 5cm and corresponding height equal to 3cm.Calculate the number of tiles required to cover an area of 45m^2. Plz gve me fst reply nd ful soltn nd ans is 3000tiles

asked by Simran kaur
252. ## Math

The length of each side of a rhombus is 10cm.if area of its diagonal is 12cm.find its area. Gve me ful sltn nd ans. Is 96cmsq.

asked by Simran kaur
253. ## Math

If there are 5 teams in one league and 6 teams in another league and if each team from one league plays one team from the other league once how many games are played?

254. ## Math

The area of trapezium is 60cmsq. The two parllelogram sides are 16cm nd 24cm.find the distnce btwn the 2 parlelogrm sides. Ans is 3cm

asked by Simran kaur
255. ## Math

The diagonal of a rhombus are 16cm nd 8cm long.find the measure of the side of a sq. Whose area is the same as that of the rhombus gve me ful sltn nd ans. 8m

asked by Simran kaur
256. ## algebra 1

mrs. karen had 11 students who took a test the top score was 50 and the lowest was 12 find the data set if the median was 20 and the mean was 25. Please help

asked by amelia reed
257. ## World History

how were the ancient aryans a civilization even though they did not have a writing system

258. ## physics

The driver of a truck slams on the brakes when he sees a tree blocking the road. The truck slows down uniformly with an acceleration of -5.60 m/s2 for 4.20 s, making skid marks 62.4 m long that end at the tree. With what speed does the truck then strike

259. ## Economics

Suppose that a tour bus business incurred implicit costs of \$600,000 and explicit costs of \$7 million in a specific year. If the firm sold 125,000 tours at \$60 per person, its accounting: A) profits were \$100,000 and its economic profits were \$500,000. B)

260. ## physics

A sprinter explodes out of the starting block with an acceleration of + 2.02 m/s2, which she sustains for 1.12 s. Then, her acceleration drops to zero for the rest of the race. What is her velocity at (a)t = 1.12 s and (b) at the end of the race?

261. ## physics

A jogger accelerates from rest to 5.78 m/s in 3.51 s. A car accelerates from 19.7 to 32.1 m/s also in 3.51 s. (a) Find the magnitude of the acceleration of the jogger. (b) Determine the magnitude of the acceleration of the car. (c) How much further does

262. ## english

The chess copetition ended ob time pronoun or noun

263. ## Chemistry

"The sun emits UV radiation that can have serious health consequences. In particular, so-called UVB radiation is mostly absorbed by the ozone layer in the upper atmosphere (altitudes of 10 - 50 km), but the part that reaches the earth can cause DNA

264. ## physics

Janet jumps oﬀ a high diving platform with a horizontal velocity of 1.84 m/s and lands in the water 2.9 s later. How high is the platform? The acceleration of gravity is 9.8 m/s 2 . Answer in units of m

265. ## PHYSICS

The engine of a 1250 kg car provides a forward directed force of 3,560 N. If the car accelerates at a rate of 2.60 m/s2, what is the total resistive force (wind resistance, friction, etc.) acting on the car?

266. ## Economics

2. If a firm increases all of its inputs by 60 percent and its output increases by 90 percent, then you know that: A) it is encountering diseconomies of scale. B) it is encountering economies of scale. C) it is encountering constant returns to scale. D)

267. ## Precalculus

Please help...a computerized spin balance machine rotates a 25 inch diameter tire at 480 revolutions per minute. (a) find the road speed in miles per hour at which the tire is being balanced (b) at what rate should the spin balance machine be set so that

268. ## Math (Algebra 2)

The points (2,1), (4,0), and (-4,k^2) are collinear. What is the value of k?

269. ## 5th grade English

What is the simple predicate in this sentence? The lion is nicknamed the King of the Beasts. Would it be "is" or would it be "is nicknamed"? Thanks!