1. math

Eliza Savage received a statement from her bank showing a checking account balance of $324.18 as of January 18. Her own checkbook shows a balance of$487.38 as of January 29. The bank returned all of the cancelled checks but three. The amounts of these

2. chemistry

ethanol is a common laboratory solvent and has a density of 0.789 g/ml what is the mass in grams of 139 mL of ethanol

3. HISTORY

10. Which of the following statements is true regarding the Korean War? A. Stalin approved the North Korean attack in advance. B. Stalin was outraged by the North Korean attack on South Korea. C. Both Stalin and Mao expected the American response to the

4. physics

A plane is flying horizontally at a height of 500 m and a constant speed of 429 km/h when an object is projected vertically downward at an initial speed of 35.0 m/s. If air resistance is neglected, the average vertical component of velocity between the

5. physics

Reckless Rick driving along the road at 90 km/hr bumps into Hapless Harry directly in fornt of him who is driving at 88 km/hr. What is the speed of the collision?

6. AP Chemistry

For the reaction 3 FeCl2 + 2 Na3PO4 → Fe3(PO4)2 + 6 NaCl , what is the maximum amount of Fe3(PO4)2 which could be formed from 11.26 g of FeCl2 and 13.34 g of Na3PO4?

7. AP Chemistry

The reaction of 8.7 grams of ﬂuorine with excess chlorine produced 3.9 grams of ClF3. What percent yield of ClF3 was obtained? Answer in units of %

8. physics

Tammy leaves the oﬃce, drives 43 km due north, then turns onto a second highway and continues in a direction of 30◦ north of east for 80 km. What is her total displacement from the office? and At what angle is her displacement? (Consider east to be

9. Physics

Review Conceptual Example 7 as background for this problem. Two charges are fixed in place with a separation d. One charge is positive and has twice (n = 2) the magnitude of the other charge, which is negative. The positive charge lies to the left of the

10. Physics

A man is 6 feet tall and wishes to have a "full length mirror" in his house, meaning a mirror that lets him see himself from top to bottom. He goes to the hardware store to get a piece of flat (plane) mirror that is just barely long enough to work. How

11. Chemistry

What is wrong with the names 2-ethyl-4 and 4-dimethylpentane?

12. Science

Ten pounds of liquid water is at a temperature of 180 degrees F at standard atmospheric conditions. Determine the energy required to convert this to water vapor (steam) at a temperature of 212 degrees F.

13. physics

A vehicle moves in a straight line with an acceleration of 5 km/h^2.By how much does the speed change each second?Answer in units of km/h

14. Economics

3. Suppose a firm has a constant marginal cost of $10. The current price of the product is$25, and at that price, it is estimated that the price elasticity of demand is -3.0. a. Is the charging the optimal price for the product? Demonstrate how you know.

15. improving vocabulary skills fourth edition

The first is to her with a stream of personal question:

16. Physics

A truck tractor pulls two trailers, one behind the other, at a constant speed of 100 km/h. It takes 0.640 s for the big rig to completely pass onto a bridge 390 m long. For what duration of time is all or part of the truck-trailer combination on the

17. college

A blue ball is thrown upward with an initial speed of 19.8 m/s, from a height of 0.5 meters above the ground. 2.4 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 7.9 m/s from a height of 22.5 meters above the

18. chems

A cubic piece of metal measures 7.50cm on each edge. If the metal is nickel, whose density is 8.90 {\rm g/cm}^3, what is the mass of the cube?

19. physics

tom the cat is chasing jerry the mouse across the table surface at 1.5 m high, jerry steps out of the way and tom slides off the table at 5m/s. Where will tom hit the floof and what are the velocity components just before impact

20. statistics

4. Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and standard deviation of 4. Do not use web-calculator to answer the following questions. Instead, you need to use the Z

21. math

A wire 320 in. long is cut into two pieces. One piece is formed into a square and the other into a circle. If the two figures have the same area, what are the lengths of the two pieces of wire (to the nearest tenth of an inch)?

22. physics

A car is initially traveling due north at 24.0 m/s. A.) find the velocity of the car after 4.00 seconds if it's acceleration is 1.60 m/s2 due north. B.) find the velocity of the car after 4.00 seconds if it's acceleration is instead 1.95 m/s2 due south.

23. Math

A ship leaves port at 6 am travelling due east at 12mph. Another ship leaves port at 11 am travelling due north at 15 mph. How far apart, to the nearest tenth of a mile are the 2 ships at 11 pm?

31. Computers

The Romance World Cruise Line provides special gifts for passengers who are newlyweds, as well as for those who have been married more than 40 years. Design a pseudocode for a program that accepts a couple's last name, ship cabin number, and number of

32. physics

A certain car is capable of accelerating at a rate of 0.57 m/s^2.How long does it take for this car to go from a speed of 56 mi/h to a speed of 66 mi/h? 1mi/h = 0.447 m/s.Answer in units of s

33. physics

a steel beam is 12.0 m long when installed at 23 degrees celsius.Find the change in the beam's length if the temperature changes from -32.0 degrees celcius to 55 degrees celcius?

34. physics

A red ball is thrown down with an initial speed of 1.2 m/s from a height of 25.0 meters above the ground. Then, 0.6 seconds after the red ball is thrown, a blue ball is thrown upward with an initial speed of 22.9 m/s, from a height of 0.8 meters above the

35. Chemistry

Given 1.7 g of hydrobromic acid (48%) calculate the number of mL. (MW HBr: 80.91 g/mol, density: 1.49 g/mL)

36. English

1.In MLA documentation, the citation goes ______ the quotation marks, but ______ the period. a)after; before b)before; after c)in between; before ~ d)in between; after 2.When a writer cites materials used from the Web, it is important to cite the ______ as

37. math

explain how you would write the number. that is 2 tens more than 53.

38. ap geometry

m is the midpoint of segment jk. jm=x/8 and jk=3x/4 subtracted by 6. find mk

39. Math

What is the difference between the measured values of 1.05m and 1.050m? What factor of a measurement tool determines the sig figs of a measured value? The two values are different because of their sig figs, the first has 3 and the other has 4. I think that

40. Eng091

I am woorking on supporting details or is this topic sentence. I am answering these the way I think they are but will someone please double check for me, I just want to be sure I am understanding this right. Finally, he began throwing a tennis ball for his

41. vocab

What is a compound sentence for abnegation?

42. physics

A crate has a mass of 27 kg. What applied force is required to produce an acceleration of 3 m/s2 if the frictional force is known to be 98 N?

43. english

are these correct proper nouns sam - burger king - she - the girl regular noun microphone - table - spoon - milk

44. math

Wendy took a trip from city A to city B, a distance of 560 mi. She traveled part of the way by bus, which arrived at the train station just in time for Wendy to complete her journey by train. The bus averaged 40 mi/h, and the train averaged 110 mi/h. The

45. Chemistry

The density of acetone, a common solvent found in nail polish remover, is 0.793g/mL. How much acetone (in g) is in a 450-mL bottle? How much acetone (in g) is in a 1.00-wuart bottle?

46. Physics

A body is projected at an angle 30 degree to the horizontal with kintic energy E.The kinetic energy at the topmost point is?

47. calculus

I need help with the following problem: From a point 50 meters from the bottom of a radio tower along level ground, the angle of elevation to the top of the tower is 67 degrees. What is the height of the tower?

48. physics

A water-skier is being pulled at a steady speed in a straight line. her mass plus the mass of the ski is 65 kg. the pull of the tow rope on her is 520 N. a...i) What is the vertical component Y of the push of the water on the ski?? ....ii) What is the

49. math

A rancher with 7000 yds of fencing wants to enclose a rectangular field that borders a straight highway and then wants to devide it into two plots with a fence parellel to the highway. If no fence is needed along the highway, what is the largest area that

50. Physics

An open box with a square base (see figure) is to be constructed from 160 square inches of material. The height of the box is 3 inches. What are the dimensions of the box? (Hint: The surface area is S = x2 + 4xh.) 1 . in. (length) × 2 . in. (width) × 3 .

51. statistics

3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same

52. Math

Quadrilateral ABCD has vertices at A(6,3), B(3,9), C(6,6) and D(12,3).It is reflected across the y axis. What are the new coordinates. Explain

53. physics

A small rock is thrown vertically upward with a speed of 13.0from the edge of the roof of a 37.0 tall building. The rock doesn't hit the building on its way back down and lands in the street below. Air resistance can be neglected. A) What is the speed of

54. Math

A particle A of mass 2.11 kg collides with another particle B of mass 3.86 kg. Their initial velocities are u1 = 2.16i + 0.88j and u2 = 0.7i + 1.12j just before impact. After collision, they both merged and becomes a composite particle, which travel with a

55. college physics

A water-skier is being pulled at a steady speed in a straight line. her mass plus the mass of the ski is 65 kg. the pull of the tow rope on her is 520 N. a...i) What is the vertical component Y of the push of the water on the ski?? ....ii) What is the

56. algebra

2x^3+7x^2-18x-63

57. Physic Help

In heavy rush-hour traffic in Atlanta, you drive in a straight line at 21 mph for 5 miles. Then you have to stop for 10 minutes and finally drive slowly by a car wreck that is 2 miles away at a steady 15 mph. After the wreck, the road is clear, and you can

86. math

setup an equation or expression to model the situation below: in one year, sales for a company increase at a constant rate. after two months, the company sells 12,500 products, and after 8 months, the company sells 30,000 products. If the constant rate of

87. sculpture

I have Art III Ceramics. I need a concentration piece to make at least 5 sculptures. I decided on pandoras box. the 5 emotions that were chosen were hope, sickness, vanity, jealousy, and lazyness. I know this is an uncreative way to get a concentration

88. math

order 3/10 from least to greastest

89. Math Algebra 2

Mr. Mullett has designed a playground for his 4 kids. This playground is awesome. The playground equipment is top of the line, multiple slides, swings, climbing wall and the playground area also includes a trampoline. What he doesn’t have is a sidewalk

90. Physics

Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in

A race car is one lap behind the lead race car when the lead car has 57 laps to go in a race. If the speed of the lead car is 66.2 m/s, what must be the average speed of the second car to catch the lead car just before the end of the race (i.e., right at

92. statistics

1. The table below presents data for a sample of people who completed a religious survey. Age Gender Denomination Church Attendance 56 1 7 4 46 2 6 5 49 2 6 5 49 1 1 5 27 2 9 5 51 1 4 2 47 2 2 3 67 1 5 4 49 2 2 6 33 1 12 6 55 2 9 5 40 1 7 5 62 1 8 6 47 2 6

104. ENGLISH

In which sentence is race used as a noun? A. Tom will race with four other boys. B. Tom won the race. C. If you race across town, you'll be on time. D. Don't race the motor when you're starting the car ITS C RIGHT?

105. matha

the sum of area and perimeter ofintegral right angle triangle is 288. find the sides.

106. cicivs

does hawaii have waterways? If yes, please name the waterways of hawaii and how it can help to shape the lives of people living in Hawaii. Please somebody help me because I looked all over my online civics book and i did research on waterways of Hawaii and

107. medical coding

What is..in the ICD-10-CM may be synonyms or provide a list of various conditions included within a code classification

108. Calculus

I need help with the following problem: You're in a hot air balloon with your support crew on the ground. Attached to the balloon are two tether cords of length 350 feet and 400 feet that your crew attached to the ground. These cords form an angle of 50

109. chemistry

What is the pH of an aqueous solution of a weakly acidic drug that is 40% dissociated and has a pKa =4.7?

158. College Math

How do you solve a quadratic equation using the indian method?

159. math

setup an equation or expression to model the situation below: what is the volume of a box that can be created from a sheet of metal that measures 12 inches by 30 inches? assumer there is no top to the box.

160. math

setup an equation or expression to model the situation: a rectangle that would fit inside of the curve y=-x^2+8

161. Prealgebra

2/3(7x+6/7)=-160/63

162. math

setup an equation or expression to model the situation below: find the shortest distance from the point (2,4) to the curve y=4x^3+1

163. HIS 103

How has the nature and technology of warfare evolved, from earliest times to 1500 CE?

164. Math

Jarrod wants to save $245 to buy a Wii gaming system. If he was saving$35 each month, how long would it take him to have the needed money? 7 months? The border between Texas and Mexico is 248 miles. If there are 32 countries along the border, about how

165. HISTORY

During the turbulence of the 1960s, black activism focused primarily on A. stopping the Vietnam War. B. supporting the nonviolent strategies of Martin Luther King, Jr. C. expanding voting rights. D. expanding economic opportunity. I THINK IS D. IS THAT

3x/y - 5

167. Math

7. If 6x=secӨ and 6/x=tanӨ then find the value of (X2-1/X2)

168. math

is surface area squared? if I got 201 meters for the surface area would it be: 201 meters or 201 meters ^2

169. math

ajay gets 20 percent less marks than that of vatsals marks. by what percentsvatsals marks is more than Ajays marks

170. math

how to simplify the following,please step by step 56x^7+21x^4+63x^3

171. Math

An external sinusoidal force is applied to an oscillating system which can be modelled by a model spring and a damper. The general solution of the equation of the motion is given by, x = 5 + 3.071cos(2πt – β) + 3.14exp(-7.96t) cos(αt + φ) where α,

172. social studies

Is there 51 states? Is DC considered as 5lst or Puerto Rico 51st

173. accounting

If sold inventory had cost 1500 for 2750 on a account under terms 2y10, ny45

174. math

Some 4 digit numbers have 4 digits that have a sum of 23. what is the smallest such number that is a multiple of 4?

175. social studies

what countries that wanted to populate the New World.

176. statistics

The lifetime of a 2 volt non-rechargeable battery has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. What is the z- score for batteries with lifetimes of 520 hours

177. chemistry

if 14.7g of na reacts with 7.9g og br how many grams of nabr are found

178. statistics

The most common intelligence quotient (IQ) scale is normally distributed with mean 100 and standard deviation 15. What score would put a child 3 standard deviations above the mean

179. statistics

The most common intelligence quotient (IQ) scale is normally distributed with mean 100 and standard deviation 15. What score would put a child 3 standard deviations above the mean

180. physics

A plane flies south at 220 km/h and is blown west by a 90. km/h wind. Calculate the resultant speed.

181. statistics

The lifetime of a 2 volt non- rechargeable battery has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours.What is the z- score for batteries with lifetimes of 600 hours

182. HISTORY

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

183. physics

A motor boat heads east across a river at 5.1 m/s. The river flows south at 2.1 m/s. Calculate the resultant speed.

184. geometry

a Street in san franscico has a 20% grade-that is it rises 20' for every 100' horizontally. Find the angle of elevation of the street?

185. ANT101

Yanomami kinship vs American kinship? is there trully any difference, we look out for whats best for ourselves and our family?

186. Math

Anthony estimated the following problem: 15,296 + 28,281 He rounded to the ten thousands place. His estimate was 40,000. Did he underestimate or overestimate? Explain.

187. College Math

What would 10 to the 16th power be?

it is a three digit whose ten digit is 3 its hundred digit is 4 more than its one digit, which is an odd number less than 5 no two digits are the same I need help on how to do this. too many years for mommy

189. math

Does (-4a)^2 = 16a^2 or -4a^2 ???

-8

191. english

Many greek tables had three legs that ended in feet shapec like paws. Am I correct in saying this is adjective clause

192. math

solve the absolute value 3/2x+4/-1=11 // stands for brackets could someone explain /2x+7/26 /2x-1/=3 I do not understand if someone could help

193. statistics

For a population with a mean of 250 and a standard deviation of 47, return each of the following z scores to raw scores on this variable. a. 0.54 b. -2.66 c. -1.0 d. 1.79

194. algebra

evaluate the expression for variables -(4h-1)/1+h;h=2 /-4b-8/+/-1-b^2/+2b^3;b=-2 9c-6d+4c-3d 9/9-8x=2x+3 If anyone could please help me, these I have not been able to figure out. Any help is appreciated. Thank you

195. physics

A crane uses a block and tackle to life a 25 kN boulder to a height of 26 m. a. how much work is done on the stone? put your answer in scientific notation. b. if the work is done in 15s, what is the power output in watts and in horsepower?

196. Algebra

.428571428571 with the digits 4,2,8,5,7,1 repeating indefinitely in that order. What digit is in the 200th place. To the right of the decimal point? Is the answer 8? Please show your work.

197. chemistry

Why is it important to list what you already know about a problem ?

198. science

Suppose you are presenting a science project that compares the temperatures of several different substances. Would you present your findings using degrees Farenheit, Celcius, or Kelvin? Explain.

199. chem

Pka=pH when[HA]=[A- ]. What is [A-]/[HA] WHEN PH=PKA+1 AND WHEN pH=pka-1

200. math

A box with a square base and no top is to be made from a square piece of cardboard by cutting 4-in. squares from each corner and folding up the sides, as shown in the figure. The box is to hold 196 in3. How big a piece of cardboard is needed?

115=-5(1+4b)

202. chemistry

5.0% glucose has a specific gravity of 1.02. what is the mass of 470mL of glucose solution.

203. physics

Independent variable is volume, in cubic meters (m3). Dependent variable is pressure, in pascals (Pa). Data points are (0.1, 40), (0.5, 8), (1, 2), (4, 1), (5, 0.8), (8, 0.5), (10, 0.4). Following the directions above, write a mathematical expression for

204. english III AP class questions

So I've signed up for Ap this year. I was wondering, do the teachers expect us to know the meaning of terms such as: grammatical functions, rhetorical appeals, brevity, metonymy, and so on? We've been given a packet that gives a article we're supposed to

205. math

2x^3+7x^3-18x-63

54x^5-16x^2

207. Grammar

Is this grammatically correct? However, through influence by Lord Henry Wotton with his words, “Don’t squander the gold of your days, listening to the tedious, trying to improve the hopeless failure, or giving away your life to the ignorant, the

208. Physics

A rock thrown straight up with a velocity of 29 m/s from the edge of a building just misses the building as it comes down. The rock is moving at 44 m/s when it strikes the ground. How tall was the building? The acceleration of gravity is 9.8 m/s Answer in

209. math

if the measure of angle a is 48 degrees then what is the measure of angle b and angle c?