Short answer find the quotient 6x^3-x^2-7x-9 ------------ 2x+3

143,010 questions, page 841
1. Enthalpy (chemistry 105)

23.0mL of water density of water is 1.00 g/mL 1g = 1ml 23g of water Cs of water 4.18 J/(gC) moles= 2.40g/72.0(g/mol)= .033 mass = 23g+2.4g = 25.4g Ti= 14.5 C Tf= 25.0 C Calculate the enthalpy change, ΔH, for this reaction per mole of X. I'm getting -33.4

asked by Bret on October 29, 2017
2. Math

A one-minute advertisement on a local television station during prime time (8-10 p.m. on weeknights) costs the advertiser \$12800. To the nearest cent, how much does the advertisement cost per second? I converted the minute to 60sec. Then divided the cost

asked by Madeline on September 6, 2017
3. Calculus

Use the Shell Method to compute the volume V of the solid obtained by rotating the region enclosed by the graphs of the functions y = x^2, y = 8 − x^2,and x = 1/2 about the y-axis. Here is how I set up the integral: 2 pi integral sign [-2,2] (1/2 -

asked by Anonymous on October 31, 2015
4. Designing Specialty Areas

Which of the following statements is true in regard to woodworking for preschoolers? A. A woodworking center for preschoolers should contain a variety of different types of tools such as hammers, pliers, handsaws, and screwdrivers. B. Preschoolers are

asked by Priscila on March 30, 2017
5. TRIANGLE HELP!!!! (MATH!)

The two triangles above are similar. a. Find x using the ratio of the sides 12 cm and 16 cm: x/20 = 12/16 Show your work. b. Find x using the ratio of the sides 6 cm and 8 cm. Show your work. c. Explain why the answers to (a) and (b) should be the same.

asked by Agal on November 17, 2016
6. Pre-Calc Helppp!!!

Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that B1 is smaller than B2.) a = 39, c = 40, angle A

asked by John on March 31, 2012
7. math

Hi I am trying to help my 4th grade daughter with homework and I am stuck with this question. Please help and explain how you got the answer. Thanks Jill's fish weighs 8 times as much as her parakeet. Together, the pets weigh 63 ounces together. How much

asked by EM on October 17, 2012
8. Probability and statistics

5. The probabilities that the lifetime of a randomly chosen device is below average, average, above average are respectively 0.2, 0.5, and 0.3. The probability that the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals

asked by Arun on March 2, 2012
9. Math

answer to travis has designed a rectangle with an area of 59 square units. his rectangle is the smallest rectangle with whole number side lengths. what are the length and width of the rectangle, explain your reasoning. what is the perimeter of the

asked by Nadia on April 10, 2011
10. Math

Consider the following experiment. Start by tossing 30 dice.Then remove the dice that show 5s and 6s and toss the remaining dice.Repeat until you have 2 dice remaining. toss # 0 1 2 3 4 5 6 7 8 # of dice 30 20 15 11 8 6 4 3 2 Estimate the best function

asked by Mary on January 17, 2010
11. Math

Marco bougth 2 botones of juice.Each botarle is 48 ounces . How many 8 ounces glasses of juice ca Marco pour from the two bottles .? A) Draw a strip diagram for the number of ounces of juice in the two bottles. B) write an equation to find the total number

asked by Susy on November 13, 2014
12. Math

1) You are serving students to find out their opinion of the quality of food served in the school cafeteria . We decided to pull only does tutors who buy hot lunch at the school cafeteria on a particular day. Is your sample random? explain 2) Maria has the

asked by WOW!!!!!! on December 12, 2018
13. gen200

• Identify a problem in your day-to-day life that you would like to solve (e.g., time management). • Using the information from your Week Three readings as a guide, prepare a 700 to 1,050-word paper in which you develop a research strategy to find a

asked by Anonymous on August 5, 2010
14. maths calculus

A centre enters students for English levels one and two end test every year. Some take the paper based version, others online version. For planning purposes you need to assume trend patterns indicate that .the total number of entries each year is always

asked by jigna on February 26, 2007
15. 5th grade math

Part A: find two numbers that have two three and five as factors. what other factors do these two numbers have in common Part b. find three numbers that has 24 and 8 as factors what do these numbers have in common

asked by Skylar on September 18, 2013
16. Math to Ms.Sue (urgent )

11.   Lorenzo has a checkbook balance of \$118.00. He writes two checks, one for \$9.00 and one for \$84.25. He then deposits \$95.00. Finally, he uses his calculator to determine his new balance. Which one of the following series represents the correct

asked by Sarah on January 16, 2015
17. math

9x+5greater than or equal to -40 or 7x+3greater than or equal to -11 solve and graph I got the answer of x greater than or equal -5 or x is greater than or equal to -2 as the solution to this equations, but how do i put this into a soltuion set the way

asked by Jen on January 29, 2010
18. Spanish

2.¿Quién le recomendó ese plato? (su tío) I have to answer this using the double object pronouns. these are the anwers I tried so far: Mi tío me lo recomendó. Su tío se lo recomendó. it is saying that the se lo recomendo is correct. I am missing

asked by Ana on September 18, 2014
19. science

What is the function of the nucleus in a cell? A. The nucleus controls the cell’s activity. B. The nucleus identifies a cell as belonging to a plant. C. The nucleus determines what substances enter and leave the cell. D. The nucleus can be seen under a

asked by I NEED HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! on May 7, 2014
20. Language arts ca

Both "the road not taken" and "o captain! my captain! are analogies. write a paragraph comparing the authors use of analogy. what is analogy? how does frost use analogy in his poem? how does whitman use analogy in his poem? why has each of these analogy

asked by tooti on April 9, 2018
21. Earth's Dynamic Atmosphere

Air pressure doesn't crush everything underneath it because A. air pressure is hypothetical and not a real force. B. air pressure is strong enough. C. things on earth have learned to withstand the constant pressure. D. air pressure is exerted in all

asked by Prisila on December 30, 2017
22. calculus

Let f x   coth x . Use the Graph software posted in Moodle to do the following: (a) Graph f x  . (b) Graph the tangent and normal lines to the graph of f x  at x 1. (c) Graph f x  . (d) From the graphs obtained in parts (a)

asked by fatma on April 19, 2014
23. college algebra

water from a tank is being used for irrigation while the tank is being filled. The two pipes can fill the tank in 6h and 8h, respectively. the outlet pipe can empty the tank in 24h. How long would it take to fill the tank with all three pipes open? round

asked by Zachery on December 12, 2012
24. Social Studies

Which statement best explains why nation-states write constitutions? Constitutions give citizens unlimited powers Constitutions establish nation-states Constitutions allow governments to elect leaders Constitutions help keep government fair Is the answer

asked by Julian on September 28, 2015
25. Math

Q. Timothy has to take out the trash every day at his house. There are 11 trash cans in his house and it takes him 14 seconds per trash can to empty them into the big trash can in the garbage. About how many minutes does he spend emptying the trash in a

asked by Destinee on February 18, 2015
26. Science

In order for a child to inherit a recessive genetic disease, like sickle cell anemia, healthy parents must both A. have the disease B. be homozygous for the mutated gene that causes the disease. C. be carries of the mutated gene that causes the disease D.

asked by Anonymous on October 15, 2014
27. science

1 What is a set of real or complex numbers or elements arranged in rows or columns to form a rectangular array. set matrix determinant real numbers 2 If A.x= λx ,where A= ∣∣∣∣211232−212∣∣∣∣ ,determine the eigen values of the matrix A,

asked by sunday on March 15, 2014
28. Science

Container A and B both container the same kind of liquid. Container A has a volume of 5 mL and Container B has a volume of 8 mL. Which container, if either has the highest density? Explain your Answer.

asked by Rachel on September 3, 2012
29. math

Joan has one more than 3 times as many cassette tapes as Paul has. Together they have 25 tapes. How many tapes does Paul have? ANS: 6 tapes The answer is 6 tapes. Does anyone know how to do this problem?

asked by shelly on November 29, 2007
30. math

A circle has an area of 25 pi cm^2.If a circle is drawn within that circle with a diameter equal to the radius of the first circle, what is the area of the second circle? a. 2 1/2 pi cm^2 b. 4 1/4 pi cm^2 c. 5 1/4 pi cm^2 d. 6 1/4 pi cm^2 e. 7 1/2 pi cm^2

asked by Thomas on January 5, 2014
31. Algebra

Evaluate sqrt7x (sqrt x-7 sqrt7) Show your work. sqrt(7)*sqrt(x)-sqrt(7)*7*sqrt(7) sqrt(7*x)-7*sqrt(7*7) sqrt(7x)-7*sqrt(7^2) x*sqrt 7x-49*x ^^^ would this be my final answer?

asked by Alexa on February 17, 2016
32. Finite Math- Please help!

Hi, I'm having trouble finding the overall output. output at A is pq output at B is ~q+r output at C is ~p(~q+r) What is is the overall output? I'm having trouble getting the EXACT answer with parethesis. Please help!! Thanks and God Bless!!

asked by Lisa on June 11, 2013
33. Chemistry

I'm stuck on the concept of negative and positive charges. A dish has 10 + charges and 10 - charges. 2 of the negative charges are taken away. What is the overall charge? I think the answer is 2+ charges

asked by Glenn on September 9, 2008
34. Psychology

Dr. Wade excitedly explains that the difference between a male and female is apparent in the structure and function of the brain. She is so pleased that you have asked about her research that she eagerly shares slides of PET scans which support her

asked by Melisa on October 9, 2010
35. US History

The English colonies in North America were united by all but which of the following? Answer a uniform language based on the London English dialect traditional English inheritance laws an uncomplicated legal system with few professional lawyers military

asked by Sheree on September 24, 2011
36. chemistry

Hi DrBob thank tou for your help so far its really inspiring I must say:) I have another question though:P Use the table to predict wheter a precipiatate forms if: 25.0 mL of 0.010 mol/L silver nitrate is mixed with 25.0 mL of 0.0050 mol/L potassium

asked by Jessica on March 31, 2008
37. Physics

A block of mass 0.229 kg is placed on top of a light, vertical spring of force constant 4665 N/m and pushed downward so that the spring is compressed by 0.093 m. After the block is released from rest, it travels upward and then leaves the spring. To what

asked by beavis on March 17, 2012
38. English 101

My question is to correct the faulty parallelism.How can we do that. "The streets were not only too steep but also were too narrow for anything other than pedestrian traffic." The structure is parallel. Perhaps the second were isn't needed. Please check

asked by Niraj on June 11, 2007
39. college psych

Which of the following explanations correctly answers the question What causes psychological disorders? a) They are caused by irrational thoughts and unrealistic expectations for perfection b) They are caused by unresolved conflicrs within the unconscious

asked by Michele on December 10, 2008
40. psychology

Myelination of your brain began before you were born and will continue in a part of your brain until you are at least 70 years old. Because of this process: A your brain cells will not be pruned back and die, so you will learn more. B you will retain the

asked by phia on November 30, 2012
41. Math

My child's teacher sent out questions to prepare for a big math test. He does not understand the questions well and I can't seem to get him to grasp it. I know the answer but could you show some easy methods or something, thank you! By the way, this is NOT

asked by Miss Johns on December 10, 2014
42. World History

Which statement BEST explains why Hunduism is one of the world's most complex repligions? A.Hinduism is very similar to Buddhism and Christianity. B.Hinduism is no longer practiced in presents-day India. C.Hinduism grew out of the overlapping beliefs of

asked by ciara on February 19, 2012
43. chemistry

what is the molecular formula of oxide of arsenic in its gaseous state (also I need to explain how this formula came about )?? There are two arsenic oxides. One is As2O3 and the other is As2O5. How did that come about? Please clarify. I assume you have

asked by Angelika on February 15, 2007
44. American History

Which statement below summarizes President Richard Nixon’s policy of Vietnamization. A. Train the South Vietnamese so America can slowly withdraw its troops B.Order an immediate removal of Americans from Vietnam. c. Meet with the North Vietnamese and

asked by Angie on April 7, 2016
45. grammar

In the following sentence select the compound predicate. We could study coins, see jewels, or examine tools. A. study,see B. could study, examine C could study,see, examine D study, see, examine Which of these is the correct answer. I think its D. I am not

asked by Anonymous on October 9, 2009
46. Math ms sue please help

The legs on a kitchen table are 29 7/8 inches high. The top is 48 inches wide and 60 inches long and 1 5/16 inches thick. How high above the floor is the table surface? I got the answer 137 7/8 inches, but I don't think it's correct. Can I get help?

asked by Gabby on September 11, 2013
47. English

Today is the first day of middle school. How do you feel? 1. I feel hopeful and nervous. 2. I feel expected and nervous. 3. I feel excited and nervous. 4. I feel ______ and nervous. ---------------------------------------------------------- Can we answer

asked by rfvv on April 17, 2018
48. calculus

answer the questions about the following function f(x)= 10x^2/x^4+25 a. is the point (-sqrt 5,1) on the graph b. if x=3, what is f(x)? what point is on the graph of f? c. if f(x)=1, what is x? what points are on the graph? d. what is the domain of f? e.

asked by Help--Please help!!!! on December 16, 2012
49. Physics

When is the average velocity of an object equal to the instantaneous velocity? a) always b)never c) only when velocity is constant d)only when velocity is increasing at a constant rate c) would be the answer since you could cross out a). I do know that

asked by Tammy on September 9, 2007
50. science

When is the average velocity of an object equal to the instantaneous velocity? a) always b)never c) only when velocity is constant d)only when velocity is increasing at a constant rate c) would be the answer since you could cross out a). I do know that

asked by Tammy on September 6, 2007
51. critical thinkng

Three of the following statements about a verb are true. Which statement is false? A. A verb can express action. B. A verb can express a state of being. C. A verb takes the place of adjectives. D. A verb makes a statement about the subject of a sentence.

asked by Saddia on March 22, 2015
52. chemistry

Concerning the following reaction at equilibrium: 3Fe(s) + 4H2O(g) Fe3O4(s) + 4H2(g), increasing the concentration of the Fe(s) would: Answer A. Shift the equilibrium to the right B. Shift the equilibrium to the left C. No change D. Increase the value of

asked by ken on July 21, 2012
53. statistics

A survey found that women's heights are normally distributed with mean 62.4 in and standard deviation 2.8 in. The survey also found that men's heights are normally distributed with a mean of 68.9 in. and standard deviation 2.8. Complete parts a through c

asked by slomomo on March 5, 2015
54. English

Here is the second part. Thank you very much. Hopefully you can have a look at it, too. 1) The Ministry of Truth, which exercises complete control over all media in Oceania, employs Winston at the Ministry's Records Department, where he doctors/alters

asked by Henry2 on January 22, 2012
55. Physics ~really need help!~

1) A 1 kg mass moving at 1 m/s has a totally inelastic collision with a 0.7 kg mass. What is the speed of the resulting combined mass after the collision? 2) A cart of mass 1 kg moving at a speed of 0.5 m/s collides elastically with a cart of mass kg at

asked by Isis on February 25, 2013
56. Physics please check

A lunch tray is being held in one hand, as the drawing illustrates. The mass of the tray itself is 0.280 kg, and its center of gravity is located at its geometrical center. On the tray is a 1.00 kg plate of food and a 0.210 kg cup of coffee. Obtain the

asked by Mary on April 24, 2007
57. trigonometry

a yardstick, held vertically on a level surface, cast a shadow 1 foot 8 inch long. Find the tangent of the angles that the rays of the sun make with the horizontal

asked by ivan on June 19, 2016
58. Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

asked by Precious on February 14, 2013
59. Calculus 2 II

integral from 0 to 1 of x-4/(x^2-5x+6) I do believe we can integrate with partial fractions, and I should factor it in order to create a linear case 1 thingy so then, it will be: x-4/(x-2)(x-3) After that, I will find the value of a/(x-2) + b/(x-3). But I

asked by Hanky7 on February 25, 2015
60. Environmental Science

What levels of environmental analysis must a Federal agency charged with building public works consider for each project? What are the criteria for choosing each of these? I tried Googling for info on this question, but I can't find anything good. Thanks

asked by Eric on February 15, 2008
61. Mechanics

An areoplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.how large a torque is required to give it angular acceleration of 20rad/sec^2

asked by Precious on February 14, 2013
62. social studies

I have to think about the needs of fur traders, Aboriginal hunters, and farmers (for ex: land, water, and food). Then I have to tell how these and three other needs might come into conflict. So, the problem is that I cannot think of any other needs. is

asked by pkd on October 5, 2010
63. Implicit Differentiation

Find the slope of the tangent line to the curve (a lemniscate) 2(x^2+y^2)^2=25(x^2–y^2) at the point (–3,1) . I know that we are supposed to use chain rule for this problem but i think i am messing up on the algebra. Can someone please help me, i keep

asked by jasmineT on February 18, 2012
64. To: Mystery Chicken

You'll find this article interesting -- re your essay. http://www.cnn.com/2010/OPINION/09/10/clark.islamic.center.language/index.html?eref=mrss_igoogle_cnn

asked by Ms. Sue on September 10, 2010
65. English / Grammar Check

Can you please tell me if this sentence is in formal language and the grammar is correct? In the novel Manhattan Transfer, manifestation of the fake social face occurs. The characters use masks, because they have trouble trying to find their real self.

asked by Unknown on October 12, 2009
66. physics

An object has a mass of 2kg and rests on a surface where the coefficient of friction is .2. (a) Find the acceleration of 10 m/sec squared (b) Assume Vi=0, how long does it take to travel 100m? (c) What is the velocity at this time?

asked by Elise on February 2, 2011
67. physics.

80 N and 60 N force act concurrently on a point. find magnitude of the vector sum if the forces pull -in the same direction -in opposite direct. -at right angles to each other seriously, i don't understand what you are supposed to do

asked by hi, on January 17, 2008
68. Physics

(ii) For the wheel of diameter 10 cm, find its final speed after traversing a distance of 10 m down an incline of 25º. Assume it starts from rest. I know i have to use the conversation of enrgy formula but how do i apply it to this instance?

asked by Oisin on August 9, 2010
69. Differential Calculus

Given that p=(2q^2-5)^2. when q=3, it is increased by 0.7%. find the appropriate percentage in p. solution dp = 2(2q^2-5) (2dq) dp = (4x(18-5)(0.7%) dp = 4(13)(0.7%) am lost from here is dp=52x0.7/100= 0.364% Responses Differential Calculus - bobpursley,

asked by matrix school 2 on August 14, 2009
70. Geometry

For the given dimensions, find the area of each figure. If necessary round to the nearest hundredth. 1.Rectangle with base 4m and height 2cm. 2. Square with side length 3.5 in. 3. Circle with diameter 9cm.

asked by Ronnie on July 8, 2013
71. english

Hi, I'm looking for the following poem. I need a version that has it divided into three parts. I couldn't find it online. If anybody could help that would be great!

asked by manny on September 15, 2007
72. Art

Ancient native Americans chose willow strips to make baskets because they were easy to blend and A-east to find B-rare and valuable C-multi-colored D-waterproof

asked by Lauren on February 10, 2015
73. algebra

find the amount of money in an account after 10 years if a principal of \$2500 is invested at 3.5% interest compounded quarterly. show work please I got 2250 but my book shows 3542.27

asked by jaimecarlon on May 10, 2015
74. Math

The Tao Inc. purchased an asset for \$170,000 with a salvage value of \$8,500 have a useful life of four years. Find the depreciation expense for the first year using the 150% declining balance method.

asked by Jason on November 10, 2009
75. physics

a bullet of mass 20g travelling at 16m/s penetrates a brock of wood and it comes to rest in 0.5seconds.find(a)the acceralation (b)the average redating force(c)the depth of the penetration

asked by luckson mulanshi on February 1, 2016
76. Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

asked by Precious on February 14, 2013
77. Mechanics

An aeroplane propeller has a 100kg and radius of gyration of 0.6cm.find its moment of inertia.How large a torque is required to give it angular acceleration of 20rad/sec^2

asked by Precious on February 14, 2013
78. education

I know how to do a annotated biblography but doing an outline is harder for me. I don't know where to find more info on Should Teachers Have the Authority to Remove Disruptive Students from Their Classes Permanently? I think im going to do this one for my

asked by scooby91320002 on July 16, 2008
79. physics: waves

A simple pendulum of length 1 m is released when it makes an angle of 6 degrees with the vertical. Find: a) The speed at the lowest point; b)If the mass of the bob is 260 g, what is the total energy? Thank You

asked by Asp on February 3, 2014
80. geometry

#24. A cylindrical water well is 1,200 ft. deep and 6 in. across. Find the lateral surface area of the well. Round to the nearest square foot. (Hint: Convert measures to a common unit.)

asked by tmouery on March 10, 2013
81. ART & DESIGN

IN ART & DESIGN CAN YOU TELL ME WHAT A RECTANGLE WITH THE WORD "LINE" INSIDE IT MEANS? Since this is not my area of expertise, I searched Google under many different key words, but I couldn't find any applicable sources. Sorry that I could not help. Thanks

asked by JANE on September 7, 2006
82. Calculus

I don't know how to go about this question. The number of elephants in a park is estimated to be p(t)=7500/(1+749e^-0.15t) Where t is the time in years and t=0 corresponds to the year 1930. Find the inverse p(t) and the interpretation of that.

asked by Lilly on January 28, 2016
83. Calc

The base of a solid is the unit circle x^2 + y^2 = 4, and its cross-sections perpendicular to the x-axis are rectangles of height 10. Find its volume. Here's my work: A for rectangle=lw A=10*sq(4-x) V= the integral from -4 to 4 of sq(4-x^2)*10dx But that

asked by Alice on February 1, 2017
84. Calculus

I don't know how to go about this question. The number of elephants in a park is estimated to be p(t)=7500/(1+749e^-0.15t) Where t is the time in years and t=0 corresponds to the year 1930. Find the inverse p(t) and the interpretation of that.

asked by Lilly on January 28, 2016
85. university bahrain

Q4. Many organizations find themselves in the apparently contradictory position of having high levels of financial investment in inventory, but at the same time frequently running out of stock of important components and materials.

asked by ali bahaj on December 25, 2014
86. religious education - Re teachers

I need to write an essay about baptism in different churches. please could someone help find a website that explains it simply. I was off school sick after having an operation when we did most of the work and missed alot of the information I need. thankyou

asked by kyla on March 14, 2009
87. georgia history

what was the main reason for British and colonization of north America? A) to find gold B) to spread Catholicism C) to increase wealth through mercantilism D) to build a strong alliance with the spanish

asked by zack on September 27, 2018
88. math

suppose that your bank pays 10% interest, compounded semiannually. Use table 12-2 of your text to find how much should be deposited now to yield an annuity payment of \$400 at the end of every six months, for 4 years.

asked by Anonymous on November 1, 2016
89. Physics

A stone whirled at the end of a rope 30cm long, makes 10cm complete revolutions in 2seconds.Find A. The anngular velocity in radians per second B. Linear speed

asked by Glory on August 19, 2018
90. english

4. In which one of the following sentences does the subject come after the verb? A. Brock traveled over miles of dirt roads. B. On the next street, you'll find the shoe shop. C. Whenever he's in town, Jeremy likes to go fishing. D. Where is my Elvis CD? I

asked by Leo on May 15, 2013
91. Algebra

Find the measure of each line segment whose algabraic expressions is given when x= 5 and y=4. Does that mean I have to label the sides, like if there's an "x" on one side of a rectangle I should substitute a 5? I just need to check on this as there are

asked by Anonymous on September 15, 2007
92. history

what was the primary goal of Hernando de Soto as he explored the American southeast? A.to find gold B.to conquer land. C.to convert Native Americans. D. to develop trade partnerships.

asked by somebody help i am new on October 15, 2014
93. dynamics

find the angle of bangking highway curve of 90m radius designed to accomodate cars travelling at 160 kph, if the coefficient of friction between tires and the road is 0.60.

asked by sisi on May 17, 2015
94. Physics- Final exam review

A proton with kinetic energy 100 keV is moving in a plane perpindicular to a uniform magnetic field of magnitude 2.3 T. Find the radius of its orbit. Not sure what equation to use or how to solve

asked by Tim on April 29, 2012
95. Alg2

Radioactive iodine is used to determine the health of the thyroid gland. It decays according to the equation y=ae -0.0856t where t is in days. Find the half-life of this substance. Round to the tenths place.

asked by Rock on December 8, 2011
96. science

Our teacher wore a t-shirt with red lettering that read "if what you're reading is blue you're running to fast" and asked us to find out what it means. Any body have a clue, I was wondering about doppler.

asked by Mike on March 19, 2008
97. Chemistry

I posted this last night, A 0.500L vessel initially contains 0.0125 mol of H2S2 . Find the equilibrium concentrations of H2 and S2. Kc = 1.67 x 10^-7 2 H2S 2 H2 + S2 I have come up with this equation so far, but I am lost now because I don’t even know if

asked by Veronica on June 8, 2014
98. math

An isosceles trapezoid ABCD has bases AD = 17 cm, BC = 5cm, and leg AB = 10cm. A line is drawn through vertex B so that it bisects diagonal AC and intersects AD at point M. Find the area of ΔBDM.

asked by Diya on April 14, 2018
99. Calculus

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y= 2e^(−x), y= 2, x= 6; about y = 4. How exactly do you set up the integral? I know that I am supposed to use the washer method but I

asked by Jed on February 26, 2015
100. algebra 1

how do you find the rate of change and explain what it means for thhe situation? heres the table: Time(hours) Distance(miles) 4 260 6 390 8 520 10 650

asked by alex on December 31, 2007