# rich

Popular questions and responses by rich
1. ## Chem

In a 1.0× 10–2 M solution of CH3NH3Br(aq), identify the relative molar amounts from highest to lowest for : -Br- -OH- -CH3NH3+ -HBr -CH3NH2 -H3O+ -H2O

2. ## math

Jonah has a large collection of marbles. He notices that if he borrows 5 marbles from a friend, he can arrange the marbles in rows of 13 each. What is the remainder when he divides his original number of marbles by 13?

3. ## literature

Regarding the difference between fiction and nonfiction, which statement is most accurate? A. Nonfiction writers are more often free to move about in time and space. B. Literary fiction does little except inform and specify. C. Nonfiction writers are free

4. ## Physics

a long jumper jumps 10m and leaves the ground at an angle of 45 degrees.determine the speed he leaves the the ground at,

5. ## Physics

A uniform solid sphere rolls down an incline. (a) What must be the incline angle (deg) if the linear acceleration of the center of the sphere is to have a magnitude of 0.23g? (b) If a frictionless block were to slide down the incline at that angle, would

6. ## Math

I'm stumped on this one too: s e e d + i c e d ---------- s p i c e c= ___ d=___ e=___ i= ___ p= ___ s=___ Hint: Solve for s and i. Then is e is even or odd? Thanks for your help.

7. ## Algebra

Suzy is 10 years older than billy, and next year she will be twice as old as billy. How old are they now?

8. ## Math

Nick made an array that has 10 counters.Draw 4 arrays that he might have made.

9. ## Chemistry

If 1.20g of steam at 100.0 celcius condenses into 38.5 g of water, initially at 27 celcius what is final temperature of water

10. ## Math

If the graph of f ′(x) is continuous and decreasing with an x-intercept at x = c, which of the following must be true? The graph of f has a relative maximum at x = c. The graph of f has an inflection point at x = c. The graph of f has a relative minimum

11. ## Finite

The quantity demanded each month of Russo Espresso Makers is 250 when the unit price is \$136. The quantity demanded each month is 1000 when the unit price is \$106. The suppliers will market 750 espresso makers when the unit price is \$72 or higher. At a

12. ## physics

What is the net force acting on a 25-N freely falling object? What is the net force when the object encounters 15N of air resistance? When it falls fast enough to encounter 25N of air resistance?

13. ## physics

Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. A diver releases an air bubble of volume 4.0cm3cm^3 from a depth of 16mm below the surface of a lake, where the temperature is 8.0∘C. What is the volume

14. ## chemistry

1. A current of 3.0A deposited 2.0g of a metal in 20 minutes. (a) calculate the mass of the metal deposited by 1 faraday. (b) determine the atomic mas of the metals given that it is trivalent. [1 faraday =96500c] 2. A quantity of 3.35g of a certain group

15. ## math

a land developer is dividing 20 acres of land into 2/5 of an acre lot. if each lot is \$15,000 what is the total value of the 20 acres.

16. ## math

If painter A can paint a room in three hours by themselves, and painter B can paint the same room in four hours, and painter C can paint the same room in six hours, how long will it take for all three to paint the room together if they do not get in each

17. ## Biology

Which compound has the highest free energy and produces the most ATP when oxidized? A. acetyl CoA B. glucose C. pyruvate D. carbon E. both pyruvate and carbon I've spent the past hour looking for this answer within my textbook or through Google searches. I

18. ## Biochemistry

Which of the following is the correct pH of a 211.7 mL solution (final volume) of pure water after 52.3 mL of 1.00 mM HCl was added?

19. ## science

5a 30 kg girl and a 25 kg boy face each other on friction -free roller blades . the girl pushes the boy ,who moves away at a speed of 1.0 m/s . the girls speed is how many m/s /

20. ## Earth Sciencs

What are the different types of seafloor sediments and what are the factors that control the distribution of each major sediment type? Where does each major seafloor sediment type tend to accumulate in greatest quantity?

21. ## health

What is the gap between the axon and the dendrite called

22. ## math

Find the area of a sector of a circle if the central angle measures 90 and the radius measures 4 inches. Leave your answer in terms of .

23. ## icp

you wreck a car travveling at 88 m/sec and decelerate at -200/s2 how far will the car crumble in at you.

24. ## statistics

Use the given confidence level and sample data to find a confidence interval for the population standard sigma. Assume that a simple random sample has been selected from a population that has a normal distribution. salaries of college graduates who took a

25. ## physics

A projectile is launched at a speed of 141m/s and an angle of 45 degrees. How fast is it moving at the top of its curved trajectory?

26. ## geometry

This is for SAT prep :( Semicircular arcs AB,AC,BD,CD divide the circle above into regions. The points show along the diameter AD divide it into 6 equal parts. If AD=6, what is the total area of the shaded regions? a.4pi b.5pi c.6pi d.12pi e.24pi Here is a

27. ## human resources

Castle’s Family Restaurant has eight restaurants in the Northern California area with approximately 300-340 employees. Most of the employees work part time, with approximately 40% full time. The operations manager, Jay Morgan, also acts as the HR manager

28. ## literature

Regarding the difference between fiction and nonfiction, which statement is most accurate?

29. ## Calculus 3

Find the magnitude of v. v = -10i + 3j v =

30. ## physics

A light spring having a force constant of 110 N/m is used to pull a 10.0 kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.0 m/s^2 (a)By how much does the spring stretch if it pulls on the sled horizontally? (b)By how much

31. ## Math

Solve: _/_*_+_*_*_/_+_*_=100 Using only numbers 1-9 in any order.

32. ## chemistry

No clue where to start with this...if someone can just help me setup these problems or assist in any way that would be great. 1. d=2.507 g/1.22 mL = 2.054918033 g mL^-1 explain how both the rules for significant figures and the random error calculation

33. ## chemistry to Dr. Bob

Balance the equation: Note: If a chemical species coefficient is "1" then "1" needs to be entered in the field before that species. MnO4– + H+ + C2O42– Mn2+ + H2O + CO2 I'm not exactly sure how to do this question..Help?

34. ## MATH

se a graphing calculator or Excel to find the solution of the system of equations. (If the system is dependent, enter DEPENDENT. If there is no solution, enter NO SOLUTION.) 5x + 3y = 2 3x + 7y = −4

35. ## chemistry

if you want a solution that is .1m in ions what mass of na2so4 must you dissolve in125 grams of water assume total dissolution of ionic solid.

A metal bar with a length of 0.30 m and mass of 0.5 kg is free to slide (no friction) on a set of vertical rails. The rails and bar together have a resistance of 500 ohms. The rails lie in a horizontal magnetic field with a strength of 0.04 T. The mass

37. ## Math

Can you help me with my son's homework question: Maria earned \$110, which is \$86 more than twice the amount Joan earned. How much did Joan earn? a. \$12 b. \$18 c. \$24 d. \$30 I would like to know the 5th grade equation that represents the answer. I guess I'm

38. ## math

How do you calculate the total number cells in a human body given that a cell is 1/1,000 of an inch in diameter and the average human body is 66 inches?

39. ## Information Technology

Choose one of the organizational departments of a business: accounting, finance, HR, or otherwise. What is the role of this department? What type(s) of information does the department need? How does the department use that information?

40. ## justice

No clue where to start with this...if someone can just help me setup these problems or assist in any way that would be great. 1. d=2.507 g/1.22 mL = 2.054918033 g mL^-1 explain how both the rules for significant figures and the random error calculation

41. ## Math

How do figure out the diameter in 1 mile circle

42. ## math

how do I find the number of zeros in the quotient of 8x10 tithe fifth power

43. ## physics

After a jump, a skydiver reaches terminal speed in 10 seconds. Does he gain more speed during the first second of fall or the ninth second of fall? which of these two seconds (1st or 9th) will he fall the greater distance?

44. ## algebra

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 5:15 A.M. IF train B passes the same station at 5:27A.M., at what

45. ## Math

Can someone help me with this math problem: e g g + e g g --------- p a g e a=____ e=____ g=____ p=_1___ How we started: p = 1, and g is greater than 5. Thanks!

46. ## MATH

The bottom of the ladder on a horizontal flat surface rests against a wall. It makes an angle of elevation of 35°. The bottom of the ladder is 42 ft from the base of the wall. How long is the ladder? Round your answer to the nearest whole number.

47. ## Damon

I have a question for Damon. Thank you for answering my question although you lost me when you came up with 37153 instead of 27153. Was this a typo or am I missing sonthing? IF anyone else can tell me I would like the help.

48. ## managerial economics

Question #6 The owner of Taco Joe’s has estimated that if he lowers the price of a burrito from \$2.00 to \$1.50, he will increase sales from 400 to 500 burritos per day. The demand for burritos is A) elastic. B) inelastic. C) unitary elastic. D) perfectly

49. ## Chemistry

I've been stuck on this question for awhile now. I'm having a lot of trouble figuring out how to start it. If you had added exactly 20.00 mL do d.i. water before the titration, calculate the molar concentration of OAc- would have been at the end of the

50. ## math

Cutting a piece of rope into fourths. Each piece is 16 inches long what is the length of the entire rope

51. ## fundamentals of programming

The ACME Company has approached you with a request to develop the psuedocode that will control the operations of their new series of vending machines. The program will be required to maintain the product inventory and money reservoir. The program should do

52. ## Calculus

Find the first 6 terms of the sequence b^1 = 5. B^n = 2b(n -1) when n>1. Then write an explicit definition of the sequence and use it to find the 12th term.

53. ## Finance

1.What would the major difference between ROI and WACC be? 2.What happens when folks use WACC for new items for budgeting purposes and then the price increases or the interest rate changes? 3.What you have to recalculate everything or just explain the

54. ## Geometry

Hi, For one part of my problem I have had to find the equation of a straight line that passes through two points, I have done this but now i need to determine whether a new point lies on this line by using the equation from the first part, how would I do

55. ## algebra

The equation y=-1777x+27,153 can be used to predict the number y of gun deaths in the United states x years after 2000, that is, x=0 corresponds to 2000, x=2 corresponding to 2002, x=4 corresponds to 2004, and so on. Predict the number of gun deaths in

56. ## Science

A 25 l partially filled weather balloon has a volume of 11 L at sea level where the pressure is 1 atm. It rises to an altitude of 6.096km (20,000 feet) where the pressure is only .48 atm. What is the resulting volume? At what pressure would it burst? Use

57. ## Calculus

find coefficient of x^8 in expanding of (x-2)^11

W3 DQ2-sub Hazel is 84, and suffers from debilitating arthritis. Sometimes, she can barely walk. Every time Hazel has been unable to get around, her neighbor Ruth cooks and cleans for her until she feels better. Hazel has offered to pay Ruth, but Ruth

59. ## math

x times 8.625 = 755.65. What is x

60. ## physics

a mettallic rod of lenght l is rotated with speeed v in uniform magnetic field. find induced current if r is resistance.

61. ## Biology

Given the following: Pi + ADP → ATP The change in free energy (∆G) is greater than 0. Question: Can this be used to drive endergonic reactions?

62. ## stats 1040

you play a game in which you win \$4 if you correctly predict the numbers of spots on a fair 6-sided die and you lose \$1 if you don't correctly predict the number of spots. you plan to play 100 times. how do you set up a box model to represent your net

63. ## Energy & Power

If I have zinc@ -.76 & copper @.340. Put 9 in a series, what would my voltage be?

64. ## Physics

Please help me solve this, most likely simple, problem. I am just starting to learn physics and am finding it very confusing. If you could include a key to explain any formulas used it would be very helpful thank you. I have calculated GPE to be 1500J but

65. ## math

a piece of rope 80 centimeters long must be cut into 2 pieces. Each piece of rope will be used to form a rectangle. Where would the rope be cut if the area of 1 rectangle must be 1/4 the area of the other rectangle

66. ## Math

What is the value of x in the following problems, y=0 in all of them. y=5+2(3+4x) y=5-2(3+4x) y=5-2(3+-4x)

67. ## MATH

simplify |-7+2|-|-4|

68. ## Chemistry

Calculate the weight % of HOAc in pure Vinegar?

69. ## math

I'm purchasing a board to build a bookcase. Want to divide the board into 1. 75 foot sections. I need six sections what size board do I need

70. ## pools

how much water will a 10 foot by 36 inch pool hold?

71. ## math

What would the measurements be using the 1/4 in.= 9 ft to represent a 27 ft square?

72. ## algebra

Hi, how can I solve this equation using algebra? y= 9x+50, many thanks

73. ## math

how to Ifind scale factor if 1/4 inch =2feet

74. ## chemistry

.592grams of na2so4

75. ## math 123

f(x)=ax+b f(-2)=27 and f(1)=15 find the value of x when f(x)=-5 how do you work this out?? thanks so much

76. ## genetics

you want to build a protein that is 10 amino acids long with the number of different amino acid that can be used how many unique protein could you7 construct.? B)How would this information be encode in your genome?

77. ## soil

which soil resists wind erosion best

1. ## Physics

n9iggaballs

posted on November 8, 2019
2. ## math

Good way of calculation

posted on June 22, 2019
3. ## Math

so B

posted on January 31, 2018
4. ## Chemistry

H2O

posted on October 17, 2017
5. ## Algebra

2+(15x)

posted on March 24, 2017
6. ## math

It does not work.

posted on February 7, 2017

a

posted on January 16, 2017
8. ## math

I dont know

posted on November 28, 2016
9. ## math

Which symbol makes the sentence true? 3/8 ______ 5/14.

posted on October 2, 2016
10. ## Physics

Thank you very much, with a little googling I can follow along with your first answer. Thank you very much for your help.

posted on April 26, 2016
11. ## Chemistry

The density is .9944 grams per mL

posted on March 9, 2016
12. ## Chemistry

I have the molarity and it was .188

posted on March 9, 2016
13. ## Chemistry

(3.0L H20)(1000g/L)(1 mol/18g) = 166.7 mol H2O

posted on June 5, 2015
14. ## college algebra

Assuming that you mean squared (2x10^2)(3.5x10^2)= 200*350= 70,000= 7*10^4

posted on April 4, 2014
15. ## math

You only rearranged them. You solved for y in terms of x

posted on March 3, 2014
16. ## English; grammar

"Grammar" not "grammar"

posted on March 2, 2014
17. ## math

x x+3 10 x+10>x+3 x+x+3>10 2x>7 x>3.5 4, 7, 10

posted on March 2, 2014
18. ## French

Do you have them in black?

posted on February 27, 2014
19. ## Spanish

Abuelito is the affectionate personal form of grandfather(abuelo) so it is better translated "grampa"

posted on February 27, 2014
20. ## English

Remember that participles are a form of a verb.

posted on February 27, 2014
21. ## maths

total is -85 divided by 10=-8.5

posted on February 27, 2014
22. ## maths

Reiny's solution just tells us the max number of days not how many days were actually used. We know that 15 more days were used than originally planned with the full 300. 300d= the sum of the progression

posted on February 27, 2014
23. ## math

7*10 man days After 5 days or 35 man days there are now 10 men to do 35 man days of work 35/10=3.5 days to finish the work for a total of 8.5 days

posted on February 27, 2014