# Rene

Most popular questions and responses by Rene
1. ## College Algebra

The concentration C of a certain drug in a patient's bloodstream t minutes after injection is given by C(t)=50t/t^2+25. Determine the time at which the concentration is highest. Round your answer to the nearest tenth of a minute.

2. ## Trigonometry

How do I prove that sin(x+y)-sin(x-y)=2cosx siny

3. ## Physics

Two ice skaters, with masses of 30kg & 85 kg are at the center of a 30m diameter circular rink. The skaters push off against each other & glide to opposite edges of the rink. If the heavier skater reaches the edge in 40s, how long does the lighter skater

4. ## english

I think that paragraph 3 is more effective than paragraph 1 because it is structured in a better manner and has better rhythm than paragraph1. It also has better structures sentences than paragraph 1. For example in paragraph 1 sentences like, ‘My Aunt

I want to retire in 20 years. I think that I need \$500,000. I have \$200,000 set aside right now. If I earn 5.25%, will I have enough? How much do I need to have today in order to achieve that?

6. ## MATH!!!

Suppose that a person with a reach of 27 inches and a shoulder height of 5 feet is standing upright on a mountainside that makes a 62 degrees angle with the horizontal..Can the person touch the mountain?

7. ## Physics

Two point charges of +1.0 uC and -2.0 uC are located 0.50 m apart. What is the minimum amount of work needed to move the charges apart to double the distance between them? (k=8.99x10^9Nm^2/C^2)

8. ## Science -

"To lift an object weighing 12,000N, how much force is needed on a piston with an area of 0.060 m^2 if the platform being lifted has an area of 3.0 m^2?"

9. ## physics

You look into a shaving mirror and the upright image of your face is 40.0 cm away from you. The image has a magnification of 1.50. (a) How far away are you from the mirror? (b) What is the radius of curvature? all answers should be in cm. thanks.

10. ## Physical science

A 3.0-kg cat runs to the left at 10m/s and a 12-kg dog runs to the right at 4.0m/s what is the total kinetic energy?

11. ## algebra

3square root 98-2square root 50+8square root 32

12. ## English

• Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence. This is what I have can you please let me know if I have done this correctly. 1. Financial planning

13. ## english

this is the assignment can you tell me if i covered what was needed of the assignment? Write two paragraphs, with a total minimum word count of 350 words, explaining what your point of view will be and what you plan to accomplish in your paper. My point of

14. ## Calculus

Find the anti derivative of u^-2(1-u^2+u^4)du. Need steps so I can try to grasp this. Thanks. I couldn't figure out how to write the anti deriv. symbol but it is in front on the u^-2. Thanks

15. ## SOCIOLOGY

WHAT ASPECTS OF THE SOCIAL AND WORK ENVIROMENT IN A FAST-FOOD RESTAURANT WOULD BE OF PARTICULAR INTEREST TO A SOCIOLOGIST BECAUSE OF HIS OR HER SOCIOLOGICAL IMAGINATION?

16. ## Calculus

Find the anti derivative of the following: 1. u^-2(1-u^2+u^4)du 2. (sqrt(x)+ 3/x - 2e^(x))dx The anti derivative symbol is in front of the equations. Also need help on find f(x) so that it satisfies f'(x) = 1+e^x+1/x and f(1) = 3+e. Please show steps so I

17. ## calculus

A program in Senegal has been reducing infant mortality at a rate of 11.1% per year. How long will it take for infant mortality to be reduced by 33%?

18. ## Word Problem

A reservation clerk worked 15.3 hours one day. She spent twice as much time entering new reservations as she did verifying old ones and one and a half as much time calling to confirm reservations as verifying old ones. How much time did she spend entering

19. ## ENGLISH VERBS

WHAT ARE THE VERBS IN THE FOLLOWING SENTENCE: THE GIRL WAS NEVER ON TIME FOR SCHOOL. There is only one verb in that sentence: was. Here is a good webpage that can help you with verbs: http://members.cox.net/lenco1/grammarpractice/verbs/verb.htm =)

20. ## chemistry

mix 10ml NaBr 3.i000M wth 10ml water & 10ml AgNo3 3.3.1000M KspAgBr=5.25.1000 .what is the situation at equilibrium

21. ## Math

Mary brought home 1/2 dozen eggs. He accidently dropped the carton on the flor and 1/3 of the eggs broke. How many eggs does she have left?

22. ## Team building and conflict resolution

You are mentoring a person in another department. This person comes to you and explains that the group she is working with is arguing over procedures employed to accomplish a project. Additionally, the group members do not seem to have much respect for the

23. ## MATH!!!

Suppose that a person with a reach of 27 inches and a shoulder height of 5 feet is standing upright on a mountainside that makes a 62 degrees angle with the horizontal..Can the person touch the mountain? I said no but idk why?

24. ## Chemistry

How to write the equation for the combustion of ethane C2H6?

25. ## statistics

Suppose we have a set of blood pressures with a mean of 110 Systolic, and a sample standard deviation of 15 points. If we assume a normal distribution of Systolic blood pressures, then between what two values can we be assured 99.7% of all Systolic blood

26. ## Math116

Graph the equation by plotting points 42-6y=0

27. ## government

what are two ways that i as a young citizen can became active in politics?

28. ## Algebra

Solve for n á = (n-2) * 180 / n = 180 – 360/n

29. ## Math

Solve for n á = (n-2) * 180 / n = 180 – 360/n

30. ## Physics

due to conservation of mass, potential energy should always equal to kinetic energy. one possible reason the calculation for kinetic energy might be less than potential energy is _

31. ## English

Need a topic in Macbeth that relates to the Renaissance and today's society.

32. ## Physics

A car accelerates from rest to 30m/s in 10s. What is the car's acceleration?

33. ## calculus

A program in Senegal has been reducing infant mortality at a rate of 11.1% per year. How long will it take for infant mortality to be reduced by 33%?

34. ## calculus

The figure shows the region bounded by the x-axis and the graph of . Use Formulas (42) and (43)-which are derived by integration by parts-to find (a) the area of this region; (b) the volume obtained by revolving this region around the y-axis.

35. ## Accounting

I am working on a problem that wants me to make a balance sheet and income statement for the Argo Sales Company based on some information given that I have no idea how to compute. I have been able to figure out how to do a ratio correctly if I am given the

36. ## Calculus

Consider the function f(x) = x - lnx. Find the intervals on which f(x) is increasing and the intervals where it is decreasing. Also determine any relative max or min.

37. ## Calculus

Use logarithmic differentiation to find the derivative of f(x) = x^x+2 and simplify. Please show steps. Thanks.

38. ## Calculus

Find f(x) so that it satisfies: f'(x)=1+e^x+1/x and f(1) =3+e. Please show all steps so I can follow. Thanks.

39. ## Calculus

Find the antiderivative of (sqrt(x)+3/x-2e^(x))dx. Need steps so I can follow. Thanks

I am looking at buying a new Camry. I think I can talk them down to \$19,000. If the bank is willing to finance it for 60 months at 3.75%, what would my monthly payment be?

41. ## science

Determine the phenotype,give the genotypes that are possible for patrick: A tall head (T) is dominant to short (t) Tall= Short=

42. ## trig

evaluate cos 12*pi

43. ## Math

what does the output is 6 less than one-half of the input mean?

44. ## English

Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. · Use at least five different pronouns in your sentences. Please let me know if I have done this correctly. While away at

45. ## Algebra

Find the LCM of (7+9u), (49-81u^2), and (7-9u) Find the LCM of 15x^8 and 75x^8

46. ## Algebra

Write an equation of the line satisfying the given conditions. Horizontal line through ( -2, -5)

47. ## Physics

How much time is needed to produce 840 joules of work if 100 watts of power is used?

48. ## math

A roll of ribbon contains 92 inches of ribbon. If you need strips of ribbon 4/5 inches long, how many strips could you cut from this roll?

49. ## calculus

Find any relative extrema and any points of inflection if they exist of f(x)=x^2+ ln x^2 showing calculus. Please show work in detail so I can follow. Thanks. The answer is no relative max or min and the points of inflection are (1,1) and (-1,1) but I'm

50. ## Calculus

Find the derivative of f(x)=ln(e^(2x)/((x^2-4)^3) Please show detail so I can use for reference. Thanks!

51. ## Calculus

Consider the function f(x) e^x-1/2x^2. Find all points of inflection if they exist. Please show sign graph and show work in detail so I can follow for future reference. Thanks.

52. ## Calculus

Find f(x) so that it satisfies: f'(x)=1+e^x+1/x and f(1)=3+e. Another tutor was kind enough to give me the anti deriv as x+e^x+ln x+c and that the constant is 2. But I can't figure how to prove it or where to start so I will know for the test. Thanks.

53. ## Calculus

Find f(x) so that it satisfies: f'(x)=1/sqrt(x) and f(4)=2. Please show steps I keep getting stuck at the anti derivative and the constant doesn't solve it so I don't know where I went wrong.

54. ## Calculus

Find the anti derivative of (u^-2(1-u^2+u^4)du. Need steps so I can try to grasp this. Thanks

55. ## Calculus

Determine the equation ofthetangent line in slopeintercept form at x=1 of y^3 +2x^2=1 at x=1. Please show work so I can follow the process. Thanks!

56. ## math 116

8x 4=4x 7 simplify this is what I come up with is this correct? x = 3/4

57. ## Algebra 1

-3x + 6 < 21 I need help in solving this problem step by step. Can anyone help, please? thank you very much.

58. ## composition

• Write a paragraph of at least 200 words identifying three challenges that might arise when writing a paper.

59. ## Math

Mary brought home 1/2 dozen eggs. He accidently dropped the carton on the flor and 1/3 of the eggs broke. How many eggs does she have left? Ms. Sue I still don't understand your answer, please. Thank you

60. ## critical thinking 205

How can a person distinguish between the prejudicial and nonprejudicial use of rhetorical? Provide an example of each.

61. ## Intermediate algebra

Seven times the difference of six and a twice a number yields the same result as the same number decreased by one.

62. ## math

You are paid \$40 an hour to wash windows. If you have worked for 4 4/5 hour, how much money have you earned?

63. ## Physics

A certain meter stick is calibrated in millimeters (the distance between two consecutive marks is ONE mm). A student measured the longest edge of a book and found that it was greater than 364 mm and less than 365 mm, but it was CLOSER to 365 mm than 364

I want to buy a house in 3 years. I need to have a down payment of \$20,000. How much do I need to have today in order to have that if I can earn 4.5%?

65. ## math

what is -4x+6=-42?

66. ## english

Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb. • Underline each adjective. • Compare the event to one or more similar events. When

67. ## english

Compare and contrast your abilities as an academic writer now as opposed to when you began at Axia College. Using four comparatives and four superlatives within your responses, explain what has led to these changes and what changes you will make in the

68. ## sentence

can u tell me what this means. i don't under stand it, the home work sheets say they want the kids to " write one sentence about your favorite dr.seuss center "

69. ## math

what is n to the 101 power and how would you use progression to solve it?

70. ## english

Use at least five adverbs and five adjectives to write a brief review of a movie, sporting event, musical performance, or television show. • Bold each adverb. • Underline each adjective. • Compare the event to one or more similar events. When

1. ## Physics

So, let's go. Vf^2{squared final velocity}= Vi^2{squared initial velocity}+2a{acceleration}d{distance}. Acceleration is 9.8 for gravity, good luck my dudes.

posted on January 29, 2019
2. ## science

how do you test luster

posted on September 30, 2018
3. ## chemistry

52

posted on April 17, 2018
4. ## math

655.27

posted on January 28, 2018
5. ## Health JUST NEED ANSWERS CHECKED :)

It's correct just took the test 100%

posted on December 19, 2016
6. ## Chemistry

4g/ml

posted on November 22, 2016

C. 7.75

posted on October 4, 2016
8. ## science

B C A

posted on October 4, 2016
9. ## Math

or 20

posted on October 22, 2015
10. ## Math

i think the answer of the 2 numbers one is 15 and One is 5 it would be 10.

posted on October 22, 2015
11. ## Math

3.6 in simplest form

posted on September 5, 2015
12. ## Physics

The white car leaves the stop sign to make a left turn, the van is coming straight at the White car before impact the van leaves 20ft of skid marks . How fast was the van traveling?

posted on May 24, 2014
13. ## English 101

1. A 2. B 3. D 4. D I want to see if the answers are correct

posted on June 24, 2013
14. ## English 101

1. A 2. B 3. D 4. D

posted on June 24, 2013

posted on December 16, 2012
16. ## College Algebra

Thank you. I looked at the table and 5 was 5 so I thought I was on the right track but just wanted to make sure. Thank you so much!

posted on October 22, 2012
17. ## College Algebra

I thought that could be the solution. I graphed it on my calculator and I come up with a maximum of 5. Does this seem correct?

posted on October 22, 2012
18. ## math

3.375

posted on April 14, 2012
19. ## Algebra I

x=1,000

posted on January 14, 2012
20. ## orientalism of muslim and arab american

UOP student here! I do not get on here to have people do my homework. I look for ideas on how to answer the questions I have not take the answers and turn them into mine.

posted on January 14, 2011
21. ## physics

Chairs in an orbiting spacecraft are weightless. I you were on board and you were barefoot, would you stub your toe if you kicked a chair?

posted on January 3, 2011
22. ## english

Thanks so much

posted on October 30, 2010
23. ## english

Thanks besides that does the second half look alright with the super and comp

posted on October 30, 2010
24. ## english

thank you

posted on October 29, 2010
25. ## calculus

thank you!

posted on September 16, 2010
26. ## PLZ HELP MATH

who is number 2?

posted on March 2, 2009
27. ## Math help

oops the question was suppose to read a rocket shoots striaght up from the launch pad. Five seconds after lift off, an observer 2 miles away notes that the rocket's angle of elevation is 3.5 degrees. Four seconds after that, the angle of elevation is 41

posted on March 2, 2009
28. ## MATH!!!

but that is what im trying to find out..why its is impossible?

posted on March 2, 2009