# Tricia

Popular questions and responses by Tricia
1. ## Algebra

A student scores 83 and 91 on her first 2 tests. Write and solve a compound inequality to find the possible values for a 3rd test score that would giver her an average between 85 and 90 inclusive. I know she has to score between 81 & 96 but I'm not sure

2. ## Chemistry help needed

How do I prepare 90% formic acid from conc. formic acid (98%-100% of density 1.22g/ml)? Please help me check if my calculations are correct. Assuming conc. formic acid is 99%, 0.99 X 1.22 = 1.2078 Add 1.2078 / 9 = 0.1342ml H2O to 1ml of conc. acid to have

3. ## Statistics

According to a survey, 21% of residents in a country over age 25 had earned at least a bachelor's degree. You are performing a study and would like at least 10 people in the study to have earned a bachelor's degree. a)How many residents of the country do

4. ## Algebra

What is a solution for-the inequality y>1.9? -9 -2 2 1.9 My answer is if it has to be greater then 1.9 the answer must be 2.0 from those 4 choices.

5. ## trig

A spring is attached to the ceiling and pulled 17 cm down from equilibrium and released. After 3 seconds the amplitude has decreased to 16 cm. The spring oscillates 13 times each second. Assume that the amplitude is decreasing exponentially. Find an

6. ## Pre Calc

from the top of a 250 ft lighthouse the angle of depression to a ship in the ocean is 18 degrees. how far is the ship from the base of the light house?

7. ## Finance

If I have \$40,000 of pre-tax what are the differences between \$1,000 tax credit versus a \$1,000 tax deduction for a single taxpayer in the 25% tax bracket?

8. ## Mathmatics

a. Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine: (cos^4)x (or cos*x to the 4th power) b.Use an appropriate Half- Angle Formula to Find the Exact value of the expression: 1. tan 15(Degrees) 2. cos

9. ## Science

How do I prepare 1% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml)? Thank you very much for your help.

10. ## world civilization 2

which of the following pairings is correct? Berthe Mariost-cubist, Emile Zola-abstractionist, Vasily Kandinsky-abstract, gustav flaubert-romanticsm

11. ## Math

How is finding a part of a whole similar to finding a part of a set? How is it different?

12. ## PHYSICS

1.)what is the magnitude of the force experienced by a proton moving at 3 km/s inside magnetic field of strength 0.05T 2.)an electron is moving at 2x10^5 m/s through a uniform magnetic field of 1.4x10^-3 T.what is the magnitude of magnetic force if the

13. ## chemistry

My motorcycle has a capacity of 4.5 gal of octane. If I combust all of the octane, what is the volume of CO2 generated by my motorcycle on one tank of gas? Assume that I burn all of the octane into CO2 on a warm day in June, where it is 80 degrees F

14. ## chemistry

A sample of aluminum metal containing 9.1080 x 10 to the 25 power atoms is drawn into a cylindrical wire with radius r=0.833 mm. how long must the wire be in meters?

15. ## parts of speech

Which verb tense indicates continuing action? A. Present B. Past perfect C. Future D. Progressive

16. ## MATH116

Two forces of magnitudes 60 Newtons and 80 Newtons make an angle of 30 with each other and are applied to an object at the same point. Find the following: 1. the magnitude of the resultant force, and 2. to the nearest degree the angle it makes with the

17. ## Science, Chemistry

I have been told that to prepare 1L of 70% H2SO4 from concentrated sulphuric acid (96% with density 1.84g/ml), I should use the following equation to find out the volume of conc. acid needed (Vml). V x 1.84 x 0.96={(1000-V)+ 1.84V}0.7 i.e. V= 594ml of conc

18. ## science

Is the universe finite or infinite? What is the universe made of?

19. ## math

-(-2)^3+0.2-/2-11/-4=-5 How to show work for the answer -5

20. ## English

How do I diagram this Sentence?? Then said she, Sit still, my daughter, until thou know how the matter will fall: for the man will not be in rest, until he have finished the thing this day

21. ## Math

I need help with setting up this problem. It took Melanie 1/3 of an hour to ride her bike 2 3/4 of a mile. How many miles per hour can Melanie ride her bike?

22. ## Roque

An equal number of pennies, dimes, and quarters were used to convert \$18 to coins. How many coins, in total, were used?

23. ## chemistry

If 5.00 g of PCl5 is reacted with excess water, how many grams of H3PO4 and HCl would be produced?

24. ## math

On the first day in each month, Enid deposited \$4 into her bank account and Jim deposited \$3 into his. They opened these accounts on May 15, 1990. On December 31, 1990, they each had \$72 dollars in their account. How much did each person deposit on May 15?

25. ## math

a sprinkler is placed in the corner of a rectangular yard,if the sprinkler has a of reach 26 feet and the yard is 30 feet long and 40 feet wide how many square feet of the lawn will not be watered by the sprinkler? 30ft-26ft = 4ft, 40ft-26ft=14 14ft * 4ft

26. ## Geometry

John is painting the side of a building that is 30ft tall. The ladder is at a 68 degree angle with the ground. while standing on the ladder the highest point John can reach is 4 ft above where the ladder touches the wall. What is the shortest ladder John

27. ## Algebra 2

I've been stuck on this problem forever. Can someone please explain to me what to do from here? The design of a digital box camera maximizes the volume while keeping the sum of the dimensions at 6 inches. If the length must be 1.5 times the height, what

28. ## Algebra

A soda machine has flavors cola, root beer, an lime.Second machine has lemon, orange, cola, and cherry. What represents all flavors in the 2 machines? My answer: cola, cola, root beer, lime, lemon, orange, and cherry

29. ## Finite Math

Malika Agwani starts her career at the age of 25 and makes equal monthly deposits for 35 years into an annuity that earns 6.25% compounded monthly. She plans on retiring the age of 60 and would like to withdraw \$3000 monthly for 25 years, bringing the

30. ## Finite Math

Laurie and Craig have purchased a new home. They paid \$25,000 down and have a 15-year mortgage for which they pay \$980 per month. If the interest is 8.25% compounded monthly, what did the house that Laurie and Craig purchased originally cost?

31. ## chemistryyy

The escape velocity of planet earth is 11.2 km/s. At what temperature would helium atoms be able to escape the earth's gravitational pull? (Note: you're calculating the average speed here, which means roughly 50% of the atoms would escape at any given

a. Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine: (cos^4)x (or cos*x to the 4th power) b.Use an appropriate Half- Angle Formula to Find the Exact value of the expression: 1. tan 15(Degrees) 2. cos

In lab, I weighed out and found the molarity of 1.108g Na2C2O4 and 1.100g K3Fe(C2O4)3. I titrated an average of 0.0335L of the sodium oxalate solution with KMnO4(potassium permanganate). I then titrated an average of 0.0169L of K3Fe(C2O4)3 X 3H2O with

34. ## Lab/Chemistry

In lab, I weighed out and found the molarity of 1.108g Na2C2O4 and 1.100g K3Fe(C2O4)3. I titrated an average of 0.0335L of the sodium oxalate solution with KMnO4(potassium permanganate). I then titrated an average of 0.0169L of K3Fe(C2O4)3 X 3H2O with

35. ## chemistry

using the ideal gas law or the combined gas law,why does the air pressure inside the tires on my motorcycle increases during the time I am riding it. Consider what factors are being kept constant and what are changing and how. What if I weigh alot?

36. ## chemistry

My motorcycle has a capacity of 4.5 gal of gasoline. If I combust all of the octane to power my motorcycle, what is the volume of CO2 generated from just my motorcycle on one tank of gas?Assume that I burn all of the gasoline into CO2 on warm day in June,

37. ## chemistry

50.0ml of an aqueous solution of 2.50M H3PO4 are mixed with 75.0 ml of an aqueous solution of 4.00 M Ca(OH)2. The resulting precipitate is washed and isolated using filtration. What mass of Ca3(PO4)2 is obtained?

38. ## chemistry

Rhodium metal currently costs \$1251. per troy ounce (note this is different than a regular ounce! 1 troy ounce = 31.1035g). What would the cost be in dollars to purchase enough gold to form a solid square based pyramid with base dimensions 0.750m by 0.750m

39. ## math

tha are of a rectangular wall of a barn is 72 square feet. its length is 10 feet longer than twice its width. find the length and width of the wall of the barn

40. ## Algebra

Simplify radical terms, including fraction power expressions. Review the expression below and describe how to simplify the expression: ã100 Please help, I just do not know how to describe this.

41. ## Algebra

Simplify radical terms, including fraction power expressions. Review the expression below and describe how to simplify the expression: 16 1/2 Please help, I just do not know how to explain this.

42. ## Algebra

I am not sure how to solve this problem. Could someone please help and explain the proper steps. Determine the annual net cost if the Annual interest of 2.5% is paid if the balance exceeds \$750, \$8 monthly fee if the account falls below minimum balance

43. ## Algebra

I am not sure how to solve this problem. Could someone please help and explain the proper steps. Annual interest of 2.5% paid if the balance exceeds \$750, \$8 monthly fee if the account falls below minimum balance \$815, account falls below \$750 during 4

44. ## accounting

How do I figure out taxes associated with stock purchased in 2010 for \$1000 held for 5 mths. Then sold for \$1200 I am in the 28% tax bracket? (I must use the IRS regulations for capital gains in effect in 2010.) I really want to understand how to work this

45. ## Algebra

I do not the correct steps to solve for this problem. I know I have to first remove the negatives but from there I get confused. This is all the further I could get. Please help. The negative numbers are powers and the problem is a fraction. C-3D-2 C3D2

46. ## Math

How do I figure out -144/4 to find out if it is a natural number,a whole number, an interger, if it is a rational or irrational number,or a real number? I don't want direct answers i would like to understand how I would go about solving to figure it out on

47. ## math

theta is an angle in standard position with a domain of 0 degrees < theta < 350 degrees and cot theta = -(24)/(7). Find all possible values of theta (accurate to 0.1 degree if necessary).

48. ## chem

As little as 1.oomg of Arsenic in 1-L of water can kill you. Calculate the following. Assume the density of the solution is 1.00g/cc. a.) How many moles of arsenic in 1 mg? b.) What is the mass percent of the solution? c.) What is the concentration in ppm

49. ## chem

A 0.050 L solution of H2SO4 requires 200.0 mL of 4.0 M NaOH for phenophthalein to turns pink to colorless. What is the molarity of the original H2SO4 solution? I got 4M but my instructor said it's 8M how did he get that? Pls need help figuring it out.

50. ## chemistry

Processed cheese must be at a pH of 5.5 to 5.9 to prevent the growth of unwanted microorganisms. If sample of cheeese has an [OH^-]of 7.76*10^-9, what does it mean? Show calculation. I really need help with please. Kindly show me !@#\$%^& to compute it

51. ## math

How many athletic association membership cards 1 3/8 inches wide can be cut from stock 24 3/4 inches wide?

52. ## math

Katie had a pack of twenty four cards numbered 1- 24. She arranged the cards into 6 piles. No more than 2 piles had the same number of cards the numbers on the cards in each pile added to the same total. What was the total and how could this be solved

53. ## math

A student has a mean score of 88 on five tests taken. What score must she obtain on her next test to have a mean (average) score of 80 on all six tests?

54. ## science

which solution is made entirely of gases? cough syrup,soda,helium,or clean air.

55. ## algebra 2

during the first part of a trip, a canoeist travels 47 miles at a certain speed. the canoeist travels 16miles on the second part of the trip at a speed 5mph slower. the total time for the trip is 4 hours. what was the speed on each part of the trip.

56. ## geometry

YW is a bisector of

57. ## ISCOM

Taylor Inc. manufactures widgets. There is a particular assembly line for Widget X. This assembly line includes the assembly of various raw materials, subassemblies, and packing of the finished widget. Currently, approximately 27% of the total labor time

58. ## Psychology

Explain proactive and retroactive interference and how you might counteract their effects while studying in order to facilitate maximum absorption of information into long-term memory.

59. ## college

Trace the memory system from stimuli into long-term memory. Discuss the features of each step and factors that enhance or impede information flow in each step of the process.

60. ## Math

Solve 4y-3 less than 7y-4 is the answer less than 2?

61. ## math

Solve 4y-3 less than 7y-4

62. ## math

Make up a set of 7 numbers having the following landmarks: mode: 21, median: 24, maximum: 35, range: 20

63. ## math

How do i expand and simplify (2x+5) (3x-4) 6x^2-8x+15x-20 6x^2+7x-20 Is this right??

64. ## Math

How do i expand and simplify (2x+5) (3x-4) 6x-8x+15x-20 6x+7x-20 13x-20 Is this right??

65. ## Maths

How do i expand and simplify (2x+5) (3x-4)

66. ## Chemistry pls help

I have a chemistry question Please advise how do I prepare 1L of 75% H2SO4 from concentrated H2SO4 (98% of density 1.84g/ml)? Do you have an equation which i can use? Someone gave me the following equation but I do not understand it. Vx1.84x0.98={(1000-V)+

67. ## critical thinking

property owned by black residents in Washington D.C 1830-1860 property value(dollars)-no. of owners 1830 1840 1850 1860 1-200 26 30 21 8 200-400 20 35 58 51 400-600 13 26 32 69 600-800 7 16 20 61 800-1000 2 5 11 48 1000-1500 2 8 19 69 1500-2000 1 1 1 21

68. ## critical thinking

2) Which of the following, if true, would best explain the material presented in the table? A) The total value of property owned by Black residents in Washington during the 1830-1860 period was similar to that in other cities during this period. B) Rising

69. ## critical thinking

2) Which of the following, if true, would best explain the material presented in the table? A) The total value of property owned by Black residents in Washington during the 1830-1860 period was similar to that in other cities during this period. B) Rising

70. ## critical thinking

Which of the following, if true, provides the strongest support for an archaeologist’s conclusion that a particular stretch of ancient stone-paved road was part of the Inca road system?

71. ## accounting

what accounts would be impacted by a \$30,000 cash payment to a \$125,000 loan (assuming there is no interest on the loan)?

72. ## Accounting

I am struggling with the operating activities section of this as in what titles of accounts I should use in this section and do they decrease or increase the net income 2005 2004 Assets Cash . . . . . . . . . . . . . . . . . . . . . . . . . . . . \$ 53,875

73. ## Primates

Where can I find information regarding when different types of primates showed up in earth's history?

74. ## unscramble MAUSULT

MAUSULT is the word so could some1 plz help me unscramble it thx n advane Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) thx u so much writeacher thats the word thx a mil take care the ans is mutuals

75. ## precalc

3x to the third power

1. ## science

a biosphere

posted on June 10, 2020
2. ## History8

Damon is correct... The evaporation causes the water level to increase and decrease, frequently.

posted on April 3, 2020
3. ## chemistry

You could use carbon cycle as one; light and dark reactions in biology.

posted on November 10, 2017
4. ## college algebra

If 30.6 out of every 100 pregnant women in Indiana deliver their babies by C-Section, how many pregnan t women out of 83,900 would be expected to deliver by C-Section? (round to the nearest woman)

posted on September 11, 2016
5. ## Economics

"Two firms produce the same good and compete against each other in a Cournot market. The market demand for their product is P = 204 - 4Q, and each firm has a constant marginal cost of \$12 per unit. MR1"

posted on December 18, 2015
6. ## Math

4 x 9 = 36 4 represents how many shelves 9 represents how many books are in each shelf 36 represents how many books are in each shelf You're Welcome

posted on December 3, 2015
7. ## math

Thank You!

posted on August 21, 2015
8. ## Algebra

That was my question I guess do you have to show it twice if it's in both machines?

posted on October 4, 2014
9. ## Algebra

Your correct. I went back to the homework sheet and it looks like that mark but the quality of the sheet is so poor I missed it the 1st time. Thank you

posted on October 4, 2014
10. ## Algebra

Thank you very much.

posted on October 4, 2014
11. ## Pre Calculus

cot^2 X - tan^2 X + sec^2 X = csc^2

posted on July 6, 2014
12. ## chemistry

you're right, I was actually just trying to research it the search bar. Sorry

posted on March 6, 2014
13. ## maths

try to make all your denominators the same then add or subtract as needed.

posted on February 26, 2014
14. ## chemistry

that's all I needed thank you so much, turns out I was way off

posted on February 23, 2014
15. ## chemistry

I do have the added note that the answer to this problem is not the volume of the atmosphere - instead you are determining the volume of the atmsophere displaced by the CO2 generated from my motorcycle exhaust

posted on February 23, 2014
16. ## chemistry

I am too, gold, I think. thanks sooo much for your help

posted on February 2, 2014
17. ## Algebra

Thank you so much. Could you help me with one more? It is the same type of question but the problem is different. ã100.

posted on September 25, 2013
18. ## Algebra

Sorry I was supposed to determine the annual net cost.

posted on August 6, 2013
19. ## Math

Thank you very much, that has helped me so much. :-)

posted on July 24, 2013
20. ## MOD 4 CHILD DAY CARE MANAGEMENT

posted on May 26, 2012
21. ## Stress Management Techniques

Thnx guys i got a 100 on my exams n i just changed the top numbers 16,17,20 to the ones below and it was correct...so trust me its not a lie... Date Graded 02/28/12 Examination 986889RR Grade 100

posted on February 28, 2012
22. ## Math

I don't get it what do you mean by that?

posted on March 21, 2010
23. ## math

so Y would equal 2?

posted on March 21, 2010
24. ## Chemistry help needed

Thank you for your explanation.Is there any formula that we can apply universally for preparations of this nature(w/w)?

posted on December 18, 2008