# mar

Newest questions and responses by mar
1. ## Biology

Traits like human height and skin color shows a wide range of phenotype, as opposed to just two of three. From the standpoints of genes and alleles, explain why is this so.

2. ## Math Trig

A ladder 15 m long can so be placed that it will reach a point on a wall 10 m above the ground. By tipping it back without moving its feet, it can be made to reach a point on another wall 8 m above the ground. What is the horizontal distance between the

3. ## chemistry

empirical formula for K 60.0% C 18.5% N 21.5% and P 7.5% I 92.5%

4. ## History

What were the characteristics of English colonies in the Chesapeake region, the Carolinas, the middle Colonies-Pennsylvania, New York, New Jersey, and Delaware-and New England prior to 1700? "The Restoration in the Colonies," and"The Middle Colonies and

5. ## science

Carbon+argon= + =

6. ## algebra

car averages 20 miles per gallon of gas in city driving and 30 miles per gallon in highway driving. At these rates, how many gallons of gas will the car use on a 300-mile trip if 4/5 of the trip is highway driving and the rest is city driving?

7. ## math

Square of a side x are cut from each corner of an 8 inches * 5 inches rectangle, so that its sides can be folded to make a box with no top. Define a function that can represent the volume of this box.

8. ## physics

Soft tissue has a linear attenuation coefficient in the range of μ = 0.35 cm−1 at 30 keV and μ = 0.16 cm−1 at 100 keV. For this problem we use μ = 0.21 cm−1, which applies at around 50 keV incident X-ray energy. (a) What fraction of X-ray photons

9. ## chem

the mass/volume percent of a NaCl solution in which 136 g of NaCl is dissolved in enough water to give a total volume of 4.90 L .

10. ## math age problem

Three years ago, Jim was half as old as Tom. Three years from now, Jim will be half as old as Michael. If Jim's age now is half as old as Michael's age three years ago, How old are Jim, Tom and Michael at present?

11. ## Elementary Statistics

determine whether the given is a statistics or parameter. 1.) There are 50 capitol states in the US. Answer: Parameter 2.) Among the flights included in the sample of flights in Data set 15 in Appendix B, 21% arrived late. Answer: Statistics

12. ## chemistry

600 gallons of 15 M nitric acid were added to a lake. The initial pH of the lake was 5.90 and the final pH was 3.70. What is the volume of the lake?

13. ## chemistry

How do I find the initial rate of reaction for 4.)? 2NO(g)+Cl2(g) ---> 2NOCl(g) [NO] (mol/L) [Cl2] (mol/L) Initial Rate (mol/L * min) 1.) 0.20 1.) 0.10 1.) 0.63 2.) 0.20 2.) 0.30 2.) 1.92 3.) 0.80 3.) 0.10 3.) 2.58 4.) 0.50 4.) 0.50 4.) ???

14. ## chemistry

how do I write the rate of the reaction for the following: Cl(g)+O3(g)-> ClO(g)+O2(g)

15. ## chemistry

the half-life of the reaction, at 34 degrees celsius and Ppan=13.2 torr, is 164.0hr. Calculate the rate constant for the reaction. confused on what to do here

16. ## chemistry

The question is: What statements are true for the standard entropy change for the conversion of ozone to oxygen? The choices to pick from are: 1. Molecular factors predict an increase in entropy 2. Stoichiometric factors predict a decrease in entropy. 3.

17. ## chemistry

sucrose change of H is -2226.1kj/mol fructose change of H is -1265.6KJ/mol calculate the enthalpy change for the hydrolysis reaction of sucrose. sucrose + H2O(l)-> C6H12O6(s)+Fructose Is it just the products-reactants?? I'm confused.

18. ## chemistry

Co2(aq)->Co2(g) calculate the free-energy change for this reaction at 25 degrees Celsius.

19. ## chemistry

what statements are true for the standard entropy change for the conversion of ozone to oxygen? Select all the apply? 2 O_3 (g) > 3 O_2 (g) Molecular factors predict an increase in entropy Stoichiometric factors predict a decrease in entropy. Molecular

20. ## calculus

The number of U.S. citizens 65 and older from 1990 through 2050 is estimated to be growing at the rate of, R(t)=0.063t^2 -0.48t+3.87, (0 less than or = t less than or = 15) million people/decade, where t is measured in decades and t = 0 corresponds to

21. ## physics

A train is moving parallel and adjacent to a highway with a constant speed of 24 m/s. Initially a car is 48 m behind the train, traveling in the same direction as the train at 35 m/s and accelerating at 3 m/s ^2 . What is the speed of the car just as it

22. ## physics

A speeder passes a parked police car at a constant speed of 25.8 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.68 m/s^2. How much time passes before the speeder is overtaken by the police car? Answer in units of s

23. ## English

Can anyone help me figure out what's wrong with this sentence? "The lighthouse is further away than it first appeared."

24. ## statistics

Assume that you are preparing a report on MM207 statistics students at Kaplan University to present to the Kaplan Board of Trustees. Prepare an appropriate graphical representation for each of the following variables. a) The different majors of students

25. ## Physics

Ten meters away from a long straight wire, the field is 10-4 (10 to the negative four) Tesla. What current flows through the wire? I know the answer is 5.0kA but I am not sure what formula to use.

26. ## Mechanics

A hunter aims directly at a target on the same level of 120m away. a.) If the bullet leaves the gun at a speed of 250m/s, by how much will it miss the target? b.) At what angle should the gun be aimed so the target will be hit?

27. ## physics

Amass of 0.5 kg is whirled at 120 rpm in a horizontal circle at the end of a string 2 meters long. Neglecting the force due gravity, find: (a) the angular velocity (b) the centripetal acceleration.

28. ## Accounting

Identify whether each description best applies to a periodic or a perpetual inventory system. a. Provides more timely information to managers. b. Requires an adjusting entry to record inventory shrinkage. c. Markedly increased in frequency and popularity

29. ## accounting

Discuss the ethics of what Amy is doing. Are there any consequences to her actions? How does the store account for Amy’s returns?

30. ## accounting

What items appear in financial statements of merchandising companies that do not appear in the financial statements of service companies? Why is there a difference?

31. ## Accounting

What is the difference between cash basis and accrual basis accounting? Why do accrual-basis financial statements provide more useful information than cash-basis financial statements? Describe when each method (cash basis and accrual basis accounting)

32. ## Current political issues in the US

Could any one help me name some current political issues here in the US? Thanks in advance!

33. ## NEWTON'S LAWS (FORCES)

Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 78.0N is applied to box A . Starting from rest, box B descends 12.3 m in 3.80s . The tension in the rope connecting the two

34. ## physics

Two boxes, A and B, are connected to each end of a light vertical rope, as shown in the following figure. A constant upward force 78.0N is applied to box A . Starting from rest, box B descends 12.3 m in 3.80s . The tension in the rope connecting the two

35. ## acc 280

P3-1 A Tony Masasi started his own consulting firm, Masasi Company, Inc., on June 1, 2008. The trial balance at June 30 is shown on page 129. MASASI COMPANY, INC. Trial Balance June 30, 2008 Account Number Debit Credit 101 Cash \$7,150 112 Accounts

36. ## acc 280

E3-3 Conan Industries collected \$100,000 from customers in 2008. Of the amount collected, \$25,000 was from revenue earned on account in 2007. In addition, Conan earned \$40,000 of revenue in 2008, which will not be collected until 2009. Conan Industries

37. ## math

there are 80 fourth graders in school of these, 35 were boys. what fractional part of the fourth graders were girls

38. ## Chemistry

We're learning about single displacement reactions. What happens when Mg + Zn two nitrate reacts? And when Al + Zn two nitrate reacts? Are there colour changes or precipitates formed?

39. ## PHYSICS

A 69.0 firefighter climbs a flight of stairs 22.0 high. How much work is required?

40. ## algebra

A line passes through (7, –6) and (8, –5).

41. ## math

A group of goats&duck s hav a total of 99 heads n legs among thm. Ther r twice as many ducks as ther r goats. How many r ther of ech?

42. ## PHYSICS

An object of mass M = 1,284 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50 degrees with the horizontal. What is the magnitude of the force that is exerted by the inclined surface on the object? (I'm using

43. ## math0301

How do i translate this phrase into algebric expression and how do i label. Twice the difference of a number and eight

44. ## algebra

Please help, very lost Evaluate the exponential function for three positive values of x, three negative values of x, and at x=0. Show your work. Use the resulting ordered pairs to plot the graph; submit the graph via the Dropbox. State the domain and the

45. ## algebra

Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this. log[5] (5x - 1) = 1

46. ## psychology

Joe ,aq high school junior , is considering a career in medicine but he is unsure if he want to commit himself to several more years of schooling .with whom is he most likely to consult with on this issue a)best friend b)girlfriend c)parents d)guidance

where do i put commas? where were you at 10 am on feburary 14 1992

48. ## english

It's always best not to start trouble that you can't finish.

1. ## Statistics

TTTTHHTHHHH

posted on June 1, 2018
2. ## biology

Traits like human height and skin color shows a wide range of phenotype, as opposed to just two of three. From the standpoints of genes and alleles, explain why is this so. answer my question

posted on November 1, 2017
3. ## English 12

1 B "the second coming" 2.A "gazing up into... 3.D go to heaven 4.C dark and somber 5.B "curse,bless me.. 6.A green as grass 7.D the school master 8.B parallelism 9.C desolate 10.A understatement 11.C discouraging 12.B it could no longer.. 13.D a

posted on June 27, 2017
4. ## physics

F=ma =0.5×4 =2N

posted on May 17, 2017
5. ## Accounting

1. Capital : 183750 Labor: 146774

posted on March 15, 2017
6. ## Math - Possible or Potential rational zeros

2x^5+9x^3+3x^2-6

posted on October 3, 2016
7. ## Math

dependent variable

posted on November 15, 2015
8. ## Science

Leigh is right everybody I just got a 100%

posted on November 13, 2015
9. ## Math

3.3

posted on April 21, 2015
10. ## chemistry

ok so 34+273=307 307X1/2=153.5 .693/153.5=.0045 I think its a second order reaction what do I do for that??

posted on February 14, 2015
11. ## chemistry

I'm not really sure what liquid H20 kj/mol is?

posted on February 2, 2015
12. ## chemistry

The question is: What statements are true for the standard entropy change for the conversion of ozone to oxygen? The choices to pick from are: 1. Molecular factors predict an increase in entropy 2. Stoichiometric factors predict a decrease in entropy. 3.

posted on February 2, 2015
13. ## Physics

Apparently you must use sine instead of cosine. Im still on a mission to find out why though.

posted on December 2, 2014
14. ## calculus

so it would not be 50 either but 5?

posted on December 1, 2014
15. ## calculus

posted on December 1, 2014
16. ## calculus

how did you get the 150? I was thinking it would be 50

posted on December 1, 2014
17. ## Quantum Physics

a) What quantum state do you have to input in order to get output |00⟩ ? b) What quantum state do you have to input in order to get output |11⟩ ?

posted on March 16, 2013
18. ## Current political issues in the US

It would be very much helpful if you specify those issues you mentioned (: Thanks!

posted on November 16, 2011

19. a

posted on June 21, 2011
20. ## finance

What major benefits do corporations and investors enjoy because of the existence of organized security exchanges?

posted on May 7, 2011
21. ## Math

what's the 32.2ft/s^2

posted on May 1, 2011
22. ## math

there are 80 fourth graders in school of these, 35 were boys. what fractional part of the fourth graders were girls

posted on March 23, 2011
23. ## Economics

animation

posted on March 23, 2011
24. ## Childcare

A. STYROFOAM

posted on July 13, 2010
25. ## chemistry

what two? metals that will not generate hydrogen gas when treated with an acid

posted on March 31, 2009
26. ## Mitosis

the phases of mitosis are prophase, metaphase, anaphase, and telophase.

posted on March 29, 2008