Missy

Most popular questions and responses by Missy
1. algebra

translate the following phrase into an algebraic expression. "the quotient of a number less seven and twenty."

2. Math

A baker bought some flour. He used to 2/5 of the flour to make bread and used the rest to make batches of muffins. If he used 16 pounds of flour making bread and 2/3 pound for each batch of muffins how many batches of muffins did he make

3. Quantitative Analysis

The dibasic compound B (pKb1 = 4.00, pKb2 = 8.00) was titrated with 1.00 M HCl. The initial solution of B was 0.100 M and had a volume of 100.0 mL. Find the pH at the following volumes of acid added and make a graph of pH versus Va; Va=0, 1, 5, 9, 10, 11,

4. English

Are these right? IF not please help me understand them thank you. Identify the sentence that most strongly relies on emotional language. It took a lot of work, but we finally got the job done. With hard work and dedication, we got the job done.** We had to

5. chemistry

Why is it necessary to heat the hydrate gently at first and then more strongly only after most of the water has been driven off?

6. Math

(6.0x10^5)x(3.0x10^4)=? 18x10^20 18x10^9 1.8x10^20 1.8x10^10 2.(5x10^-2)/(2x10^10=? 2.5x10^-5 2.5x10^-1 25x10^1 25x10^2 3.(2.56x10^6)x(3.56x10^2)=? 9.1136x10^12 91.136x10^8 9.1136x10^8 91.136x10^12 4.In a recent year, the population of California was about

7. Math

The amount allowed in weight per bus is 221 pounds. My friend weighs 60 pounds. For us to ride in a car together how much can you weigh? I wrote this solution. If it is right? if not could you show me the steps? x + 60 < = 161; at most 221 pounds. Is this

8. Chemistry

A 100.0 mL aliquot of 0.100 M weak base B (pKb=5.00) was titrated with 1.00 M HClO4. Find the pH at the following volumes of acid added Va= 0, 1, 5, 9, 9.9, 10, 10.1, and 12mL

9. chemistry help asap

Please check these thanks. 1. In a titration, 33.21 mL 0.3020M rubidium hydroxide solution is required to exactly neutralize 20.00 mL hydrofluroic acid solution. What is the molarity of the hydrofluroic acid solution? Answer: 0.502HF 2. A 35.00 mL-sample

10. Probability and Linear Math

SET UP BUT DO NOT SOLVE THE FOLLOWING LINEAR PROGRAMMING PROBLEM. A financier plans to invest up to \$500,000 in two products. Project A yields a return of 10% on an investment, whereas Project B yields a return of 15% on the investment. Because the

11. chemistry

The weak acid HQ has pKa of 4.89. Calculate the [H3O+] of .025 M HQ. when i did this i got 5.2 x 10 ^-14

12. college algebra

A model rocket is launches upward with an initial velocity of 160 feet per second. The height, in feet, of the rocket t seconds after the launch is given by h=-16t^2+160t. How many seconds after the launch will the rocket be 290 feet above the ground?

13. space

from 1700 to 1800 the greatest number of sunspots was just over what

14. acids and alkalis

Name some alkalis lime. Lye. can you name some other alkalis apart from oven cleaner, soap, toothpaste, moutwash, indigestion medicine and bleach Or other cleaning products Bile in the digestive track is a strong alkali can you name some general things

15. Math

Tom and Lana both need \$15,000 in 3 years. Tom finds an investment in which he can earn 8% compounded annually. Lana finds an investment in which she earns 7 7/8% interest compounded monthly. Who must invest more money now in order to get \$15,000 in 3

16. Trig-Algebra help asap

The adjacent sides of a parallelogram measure 8 cm and 12 cm and one angle measures 60 degrees. Find the area of the parellelogram.

17. Chem 2

Metallic Magnesium can be made from electrolysis of molten MgCl2. What mass of Mg is formed by passing a current of 4.55A through a molten MgCl2 for 3.50 days? Please Help!!

18. Chemistry

A weak acid HA (pKa = 5.00) was titrated with 1.00 M KOH. The acid solution had a volume of 100.0 mL and a molarity of 0.100 M. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 9.9, 10, 10.1, and 12 mL.

19. college algebra

a cub measures n inches on each edge. If a slice 1 inch thick is cut from one face of the cube and then a slice 3 inches thick is cut from another face of the cube, the resulting solid has a volume of 1560 cubic inches. Find the dimensions of the original

20. Math Concentration

Joe has a ring weighing 10 grams made of an alloy of 13% silver and the rest gold. He decides to melt down the rings and add enough silver to reduce the gold content to 69%. How many grams of silver should he add? My set up is: 10 (.13 + .87) = 10 (.13 + X

21. Chemistry

A buffer is prepared by mixing 205 mL of .452 M HCl and .500 L of .400 M sodium acetate. (Ka =1.80 x 10^-5) a) What is the pH? b) How many grams of KOH must be added to .500 L of the buffer to change the pH by .125 units?

22. college algebra

A propane tank has the shape of a circular cylinder with a hemisphere at each end. The cylinder is 6 feet long and volume of the tank is 5pie cubic feet. Find, to the nearest thousandth of a foot the length of the radius x.

23. Chemistry

A solution of vinegar is 5.16% by mass aetic acid, CH3CO2H, in water. Assuming the density of vinegar is 1.00 g/mL, what is the molarity of the acetic acid?

24. Alg 2

Expressions, Equations and Inequalities I am struggling can someone please explain how to get the correct answer choice thank you! 1. Which of the following is equal to (3x/5-7)+7 5x/3 3x/5 3x-35/5 (3x-7)+35 5. name the property of real numbers illustrated

25. Chemistry

At equilibrium, [S(CH2CH2Cl)2] = 350 M, [SCl2]=.325M, and [C2H4] =.273 M for the reaction below. SCl2 + 2C2H4 = S(CH2CH2Cl)2 What is the Kc?

26. Geometry

The average human heart pumps about 60 milliliters of blood for each beat. a. About how many liters of blood does your heart pump each day? b. Do you think a reasonable degree of precision for this question would be to report the answer to the nearest 100

27. Science

Which resource is renewable? A. Coal B. Crude Oil C. Whale Oil D. Natural D. Natural gas I searched Google under the key words "renewable energy sources" to get these possible sources: http://en.wikipedia.org/wiki/Renewable_energy

28. Science

What is special about characteristics properties of matter? A. The state of matter is the same B. The atoms rearrange C. They do not change D. All the properties change I don't understand the ?

29. Math

Given that a cylinder has a volume of 1200cm^3, what is the volume of a cone that has the same height and same radius as the cylinder? explain your reasoning

30. Math

Fantasia Florist Shop purchases an order of imported roses with a list price of \$2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? Using your answer to the question above, what is the net dollar amount of that rose

31. Language Arts

I just need someone to double check my work. :) Here are my answers: 1. C 2. B 3. A 4. B 5. D 6. B 7. A 8. A Here are the questions: Choose the option that correctly identifies the ( underlined words ) in each sentence. 1. (Stretching for 210 miles), the

32. Literature

When you save documents, it is important to check the _____ at the top of the navigation window to ensure saving your file in the current location A.adress bar ** B.insert ribbon C.file type D.file name

33. Math

Why could the mean of the data set below be misleading? ages of teachers: 29, 38, 39, 26, 29, 29, 39, 77, 38, 29

34. chemistry

An electron traveling at 4.3×105 m/s has an uncertainty in its velocity of 1.92×105 m/s. What is the uncertainty in its position?

35. Alegra Beginning

Rachel earns \$6,000 less than twice as much as Tom. If their two incomes total \$48,000, how much does each earn?

36. triginomitry

A cottage under construction is to be 12.6 meters wide. The two sides of the roof are to be supported by rafters that meet at a 50 degree angle.How long should the rafters be?

37. math

Instant dinner comes in packages with weights that are normally distributed with a standard deviation of 0.3 oz. If 2.3 percent of the dinners weigh more than 13.5 oz, what is the mean weight?

38. math

The diameter of a pipe is normally distributed with a mean of 0.4 inches and a variance of 0.0004. What is the probability that the diameter of a randomly selected pipe will exceed 0.44 inches?

39. Chemistry

SrH2 +2H2O = Sr(OH)2 + 2H2 You wish to calculate the mass of hydrogen gas that can be prepared from 7.74g of SrH2 and 6.45g of H2O How many moles of H2 can be produced from the given mass of SrH2? How many moles of H2 can be produced from the given mass of

40. TRIG HELP ASAP

I really need help on this problem. A sector has area of 15 in^2 and central angle of 0.2 radians. Find the radius of the circle and arc length of the sector

41. history

the most conspicuous change in American life in the 1840s and 1850s was the rapid industrialization of the Northeast." What changes occurred in this region during the period under consideration and how did these changes tend to draw the Northeast and the

42. math

Instant dinner comes in packages with weights that are normally distributed, with a standard deviation of 0.3 oz. If 2.3% of the dinners weigh more than 13.5 oz, what is the mean weight?

The circumference of a circle is 12.56 centimeters. What is the approx. measure of the circle's radius? A. 2 B. 2.5 C. 4 D. 8 I think that the Diameter would be 4.18 so the radius would be 2.04 or rounded to 2.

44. math

A marathon runner ran 26.2 miles in 2 h 30 min. Find these rates: a. miles per hour b. miles per minute c. minutes per mile

45. Math

1. A baker had 10 sacks containing the following amounts of flour: 4 ½ kg, 3 ¼ kg, 2 ½ kg, 2 ½ kg, 4kg, 3 ¼ kg, 4 ¼ kg, 5kg, 2 ½ kg, 3 ¼ kg 2. Plot the measurements on a line plot. Give the line plot a title and label the axis. 3. If the baker

46. physics

A child ties a rock to a string and whirls it around in a horizontal circle. Assuming a 1.50 m -long string making 20.0 ∘ angle below the horizontal, find the speed of the rock. Find the period of its uniform circular motion.

47. chemistry

how many liters of hydrogen gas can be formed at 722 mmHg at 15 degress C when 5.5 grams of zinc metal with 150 mL of 1.25 molarity HCl solution?

48. social studies

Erica tries to avoid her boss when he's in a bad mood. To keep out of his way, she spends more time doing dreaded but important paperwork, which she usually puts off as long as she can. Her employer's bad moods have the effect of __________ her attention

49. chemistry

Many analytical instruments require liquid nitrogen. While filling an instrument with liquid nitrogen, an analytical chemist slips and spills the contents of the dewer, 25L, onto the floor. Since the boiling point of liquid nitrogen at 1atm is 77.4 K, all

50. chemistry

draw a lewis structure for a resonance form of ClO2- showing the lowest possible formal charges and give the oxidation numbers of the atoms

51. chemistry

2Br- + Cl2 = 2Cl- +Br2 how many moles of chlorine gas, are required to react with 169g of bromide(Br-)?

52. chemistry

Propane is widely usid in liquid form as a fule for barbecue grills and camp stoves for 58.5g of propane, calculate the following quantities. The grams of carbon?

53. history

Who were the major critics of slavery? On what grounds did they attack the institution and what means to end it did they propose?

What is special about characteristics properties of matter? A. The state of matter is the same B. The atoms rearrange C. They do not change D. All the properties change This question needs a science tutor's response. I don't understand the question. Did

55. Math

5% of a number is equal ti 25. Would this be 20 A.S.A.P.

On a recent day, 8 euros were worth \$9 and 25 euros were worth \$27. Write an equation of the form y = kx yo show the relationship between the number of euros and the value in dollars. ___________, where y is dollars and X is euros My answer is \$36 = k32.

57. algebra-trig help asap

Evaluate the expression. Assume that all angles are in quadrant 1. 1. cos(arccos4/5)

58. Trig-Algebra help asap

A regular pentagon is inscribed in a circle whose radius measures 7 cm. Find the area of the pentagon.

59. college algebra

on a ship, the distance d that you can see to the horizon is given by d=1.5 square root h, where h is the height of your eye measured in feet above sea level and d is measured in miles. How high is the eye level of a navigator who can see 16 miles to the

60. chemistry

How many milliliters of 16.0 M HNO3 stock solution wouuld be required to prepare 100.0mL of 3.00 M HNO3? Use the formula M1V1=M2V2

61. Physics

Would someone please show me a way to work this out A ball is dropped from the top of a building 150 m high. (Ignore air resistance) A. How long does it take the ball to hit the ground? B. What is the speed of the ball when it hits the ground?

62. chemistry

How many grams of Li3N can theoretically be produced from 1.77 moles of Li? 6Li+N2 = 2Li3N

63. latin

translate to good enMonete, custodes, militem infelicem. Apud viros avaros hodie est.

64. TRIG HELP ASAP

I need help trying to find the major and minor axis on this problem: x^2+3y^2-6x+24y+6=0

65. psychology

Researchers have found that, during childhood: A) girls' gender schemas are more rigid than boys' gender schemas. B)when boys play with girls, the boys lose status. C)boys like it when girls dress and behave like boys. D)girls express stronger preferences

if the break-even point in dollar sales for a company is \$360,000 and the company's contribution margin ratio is 30% and the company expects a profit of \$84,000, what would the sales have to total?

67. Chemistry

A sample of natural gas at STP is 78% CH4 and 22% C2H6 by volume. How many moles of each gas are present in 1.60L of the mixture? Assume ideal gas behavior

68. chemistry

CaCO3 = CaO +CO2 after a 15.8g sample of calcium carbonate was heated in an open container to cause decompostition the mass of the remaining solid was determined to be 9.10g. calculate the mass of carbon dioxide produced.

69. Science

What is the deepest soil layer? A. subsoil B. topsoil C. bedrock D. humus http://www.enchantedlearning.com/geology/soil/ a becouse you have to use process of elemenation bedrock its bedrock because bedrock it in fact the deepest layer of soil to tell you

70. Math

Jane is 5 years younger than Mary. How old is Jane if Mary is 23 years old? Please show step so I can understand how you get the answer .Because word problem confuse me.Thank you in advance

On a recent day, 8 euros were worth \$9 and 25 euros were worth \$27. Write an equation of the form y = KX yo show the relationship between the number of euros and the value in dollars. ___________, where y is dollars and X is euros My answer is \$36 = k32.

72. algebra-trig help asap

Evaluate the expression. Assume that all angles are in Quadrant I. 14. tan(arccos 3/5)

73. Algebra-Trig help asap

A rhombus has sides of 5 cm each and one diagonal is 6 cm long. Find the area of the rhombus.

74. Trig-Algebra help asap

A regular octagon is inscribed in a circle with a radius of 5 cm. Find the area of the octagon.

Can you please check these answers thanks 1. A ladder 14 feet long is leaning against a house. The foot of the ladder is 4.8 feet from the house. Find the angle of elevation of the ladder and the height it reaches on the house. Answer: 13.2=height 18.9

76. social studies

When Andrew became a Roman Catholic priest, making the vow of celibacy was difficult, but he remained true to his commitment. Andrew found along the way that he had a talent for sculpting and began creating exquisite pieces of religious art. Sigmund Freud

77. social studies

Which of the following ways of measuring explicit memory usually produces the best results? A)Relearning B) Recall C)Recognition D) Referral I chose B. Am I right?

78. chemistry

how many moles of Cl2 will be produced from the reaction of 9.61 moles of HCl? MnO2 + 4HCl = MnCl2 +Cl2+2H2O

79. history

Compare and contrast the way of life of Southern white women and black women during the 1840s and 1850s. How did the institution of slavery affect them both? How did the way of life of Southern white women compare to that of women in the North?

80. accounting

On July 1, 2010, Brower Industries Inc. Issued \$32,000,000 of 10-year, 12% bonds at an effective interest rate of 13%, receiving cash of \$30,237, 139. Interest on the bonds is payable semiannually on December 31 and June 30. The fiscal year of the company

81. Geometry

Can you check these multiple choice questions thanks. 1. What is the length of a rectangle that has an area of 20 square meters and a perimeter of 18 meters. A. 10 meters B. 2 meters C. 5 meters D. 9 meters Answer: B 2. Find the minimum perimeter of a

82. math

The diameter of a pipe is normally distributed with a mean of 0.4 inches and a variance of 0.0004. What is the probability that the diameter of a randomly selected pipe will exceed 0.44 inches?

What do all desert plants have in common? A. all have prickles or thorns B. all can survive without water C. all can live without much rain D. all are poisonous to desert animals i think it is B hmmmmm? no water at all? hey k. i picked b cause all plant in

84. math

5 pies shared equally among 8 neighbors how much each neighbor get

85. math

if a tree is 10 ft tall after 2 yr. and 25 ft tall after 5 yr. find the rate of change of growth if y is the height and x is the number of years

86. math

the product of two mixed numbers that are each between 4 and 5 is between 16 and 25. I think that is false. am I correct

87. math

All other conditions being equal, does a z or t value with larger magnitude have a larger or smaller corresponding P- value?

88. Trig-Algebra help asap

A rhombus has sides of 5 cm and one diagonal is 6 cm long. Find the area of the rhombus.

Please check these answers thanks. 1. The shadow of a vertical pole is 24.8 feet long when the angle of elevation of the sun is 42degrees 0.0'. Find the height of the pole. Answer: 22.3=height 2. From a point on a lighthouse 108 feet above water, the angle

90. French

Can you check these. I'm not really sure how to do these so I need a little help and examples. Part 1: Des promoms interrogatifs et relatifs Complétez en utilisant qu'est-ce qui ou qu'est-ce que. 1. ---------- se passe? Answer: Qu'est-ce qui 2.

91. Geometery

Find the measures of the requested angles. In the figure, ABF measures 41° and DBG measures 93°. Find the measures of , , and . A) ABD = 52°, GBC = 46°, EBC = 52°, and FBE = 131° B) ABD = 41°, GBC = 46°, EBC = 41°, and FBE = 134° C) ABD = 49°,

92. chemistry

.0815 moles NO are reacted with .0789moles O2 gas to form NO2 gas according to the following equation: 2NO +O2=2NO2 determine the molar amounts of NO, O2 and NO2 after complete reaction.

93. chemistry

how many moles of CO2 are produced from 2.90 moles of C3H8? C3H8 + 5O2 yields 3CO2 +4H2O

94. Chemistry

If a precipitation reaction occurs when a solution of one species is added to a solution of the other, enter the formula, including the state, of the soluble product. If there is no reaction, enter the formula and state of all ions in solution, separate by

95. Chemistry

If a precipitation reaction occurs when a solution of one species is added to a solution of the other, enter the formula, including the state, of the soluble product. If there is no reaction, enter the formula and state of all ions in solution, separate by

96. science

rearrange this equation 2 make x the subect. 6y = 9 - 3x so first i add 3x to both sides which makes it 3x - 6y = 9 then do i divide both sides by 9 or wat?? can sum1 help me out here If they mean by "Make x the subject" the same as "Solve for x", then add

97. Science

Which is the best description of bedrock A. Dark soil, rich in humus B. Coarse soil with little humus C. Decaying plant and animal matter D. Solid rock with some cracks b cause its the best

98. Science again...

What other form is released by a radio. A. Heat Energy B. Mechanical Energy C. Ultraviolet Radiation UV? Can you get a tan from your radio? What is that sound...is it mechanical energy? IS the radio warm? Heat energy because c is something to do with the

99. Science

Which mixture will separate quickly when left uncovered out in the open? A. Air B. Cola C. Concrete D. Seawater Cola in the open loses its dissolved carbon dioxide.