# Questions Asked onMarch 28, 2013

11. ## Algebra

A theater company's annual profit is modeled by the equation P= 0.2x^2-6.8x, where x is the number of plays performed in a year. How many plays must the company present in order to make a profit?

12. ## Geometry

Find the surface area of a cylinder whereas diameter is 9 ft and height is 24 ft

13. ## Simple Calculus

The sequence \{x_n\}_{n=1}^{n=20} is defined as x_n = (-1)^n n. What is the sum of all the terms in the sequence?

14. ## physics

At most, how many bright fringes can be formed on either side of the central bright fringe when light of wavelength 656 nm falls on a double slit whose slit separation is 3.45 × 10-6 m?

15. ## Simple Calculus

Evaluate \displaystyle \lim_{x \to 0} \frac{\sqrt{2}x}{\sqrt{2+x}-\sqrt{2}}.

16. ## Simple Calculus

Let y = x^3 + ax^2 + bx. If (x,y) = (2,64) is a point on the curve and the slope of the tangent at x=-1 is 3, what is the value of a+b?

17. ## Simple Calculus

If f(x)=(x+1)^3(x^2-1)^2, what is the value of f'(2)? Details and assumptions f'(x) denotes the derivative of f(x).

18. ## Chemistry

How many mL of 12M HCl is needed to create 350mL of 0.125M HCl?

19. ## Probality

in a case in riverhead, New York, nine different crime victims listened to voice recordings of five diffent men. All nine victims identified the same voice as that of the criminal. If the voice identified were made by random guesses, find the probality

20. ## chemistry

How many milliliters of 0.602M hydrochloric acid (HCl(aq)) must be added to 15.00mL of 0.538M sodium hydroxide (NaOH(aq)) to reach the equivalence point? Report your answer to 2 decimal places.

21. ## physics

A pail with water (mass = 15 kg) is raised using a pulley system, if the pail accelerates upward at a rate of 1.45 m/s^2, how much is the tension on the rope?

22. ## Estimation and Computation

The ratio of boys to girls in a class is 2:3. If a student is chosen at random to be on the student council, what is the probability it will be a girl?

23. ## Math

if 4/3 x 3/4 =5k whats k

24. ## math

the ages of a son and father are in the ratio 3:8. if the son is 35 years younger than his father. find their ages.

25. ## Life orientation

In 10-15 lines,critically discuss 5 ways in which human or environmental problem impacts on the community.Provide relevant sources to support your claims.

26. ## Life orientation

Community organizations that are involved in supporting HIV

27. ## physics

a 125 cm long string has a mass 2.0g and it is stretched with a tension of 7.0 IN between fixed support

28. ## fuuast

young, innovative, or high-tech firms often adopt the strategy of ignoring history or attempting to do something radically new.in what ways will this strategy help them? in what ways this strategy hinder them?

29. ## Algebra

solve for x: (1) (3/4x) + (5/6) (2) [(6x-7)/4] + [(3x-5)/7]

30. ## Stats

The scatter diagram of the lengths and widths of the petals of a type of flower is football shaped; the correlation is 0.8. The average petal length is 3.1 cm and the SD is 0.25 cm. The average petal width is 1.8 cm and the SD is 0.2 cm. 1. One of the

31. ## Stats

The scatter diagram of the lengths and widths of the petals of a type of flower is football shaped; the correlation is 0.8. The average petal length is 3.1 cm and the SD is 0.25 cm. The average petal width is 1.8 cm and the SD is 0.2 cm. 1. One of the

32. ## math

The pie chart shown in Figure A-6 illustrates the favorite foods of a selected group of fiveyear- old children. A total of 5,280 children were polled in order to construct this chart. According to the information provided in the chart, how many children

33. ## Life orientation

In 10 to 15 lines critically discuss 5 ways in which human or environmental problem impact on the community.Provide relevant sources to support

34. ## Algebra help needed please!!

I have a few questions I need help with! 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give the solution in terms of a parameter. -3x+y-z=-4 6x-2y+2z=8 -12x+4y-4z=-16 2. Solve

35. ## Algebra help!

1.) Solve the system by triangularizing the augmented matrix and using back substitution. -x-y+z=1 x-y-4z=-7 4x+y+z=6 2.) Perform the indicated row operation, then write the new matrix. -4 4 | 4 9 -6 | 5 -2R1+ R2 ---> R2 3.) Solve the system by

36. ## Trigonometry question?

Let ABCD be a square, and let M and N be the midpoints of BC and CD respectively. Find sin

37. ## Solve the inequality

Solve the inequality algebraically 8x-3 ≥ -3x^2

38. ## Biology dilutions

This is the homework exercise: You want to add 0.13 ul of DNA to 4.87 ul of extraction mix to have a final total of 5.0 ul of sample. But you don't want to make 0.13 aliquots because it is too small. Make a dilution to accomodate for the small aliquot. Any

39. ## chemistry

Pure water has a density of 1.00 g/ml at 297 . Calculate the molar concentration of pure water at this temperature. Would i just convert grams to moles, and ml to liters?

40. ## algebra

The following polynomial is prime. 2q² + 9q + 1

41. ## english

Which of these are epics? A.Gilgamesh B.Beowulf C.The Odyssey D.All of the above E.I'm not sure.

how do i convert milligrams to grams- i am in fifth grade-easiest way please.

43. ## E

Which is the best way to learn new material? A. Use techniques that appeal only to your preferred learning style. B. Review notes every day. C. Consistently study the same way. D. Use techniques that appeal to all three learning styles

44. ## govenment

Virginia ratified the constitution with the help of all of the following men EXCEPT: a. Washington c. Henry b. Jefferson d. Madison

45. ## algebra

Determine whether the following is a polynomial. 937g2h3 - 238gh2 + 54gh

46. ## govenment

The government set up by the Articles of Confederation had a. no legislative or judicial branch. b. only a legislative and an executive branch. c. only a legislative branch, consisting of a unicameral Congress. d. only a legislative branch, consisting of a

47. ## govenment

When crafting the new Constitution, the Framers drew from their experiences with which of the following? a. the governments of ancient Greece and Rome b. the writings of Rousseau and Locke c. their own State governments d. all of the above

48. ## Math

the perimeter of a rectangular field is 140m. If the length is increased by 15m and breadth is decrease by 5m, the length will become 3 times the breadth. Find the length of breadth of the field.

49. ## Lit

What works has become a classic expressions of the meaning of American democracy?

50. ## math

A supply company sells packs of paper by the box. Each box contains the same number of packs of paper, P. Which equation could be used to find the total number of packs of paper, T, that would be in B boxes ordered?

51. ## chemistry

A certain weak base has a Kb of 8.40 × 10-7. What concentration of this base will produce a pH of 10.34?

52. ## Statisitics

In a large section of a Chemistry class, the points for the final exam are normally distributed, with a mean of 72, and a variance of 81. Grades are to be assigned according to the following rule: the top 10% receive As, the next 20% receive Bs, the middle

53. ## Fluid Mechanics

2. The discharge through a Francis turbine rotating at 150 rpm is 1.5 m3s-1. The outer and inner diameters of the turbine runner are 1500 mm and 1000 mm respectively. The runner thicknesses at entry and exit are 100 mm and 250 mm respectively. The power

54. ## Algebra multiple choice!

I have a few questions I need help with! Please explain if my answer was not right how you got to it. I got 1.) B 2.) A 3.) C 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give

55. ## Math

47 Fahrenheit = Celsius give answer in decimal form, to the nearest tenth?

56. ## Use the remainder theorem

Use the remainder theorem to find the remainder when f(x) is divided by x+2 whether x+2 is a factor of f(x) f(x)=2x^6-8x^4+x^2-5 Remainder is=

57. ## Quick Math Question

How do I add time? If a person worked 4 1/2 hours on Monday, 4 1/2 hours on Tuesday and 2 hours on Wednesday, does that add up to 12 hours? If not, how much more time would the person need to work the next day to equal 12 hours?

58. ## physics

body floats 1/3 of volume outside the water and 3/4 of its volume outside another liquid.what is the density of ether liquid?

59. ## Math

the sum of 5 consecutive whole numbers is 2005. what is the sum of all the digits of these 5 numbers

60. ## Quantum Physics

Suppose we ran m steps of Grover's algorithm on some function f (which has one marked element y) and the resulting superposition was exactly |y⟩. (a) What was the state after the (m−1)-th step? Note that you can describe the superposition by specifying

61. ## math

if in a spinner of 1-8 if the probability of even numbers is 4/8 and probability of multiple of 3 is 2/8. isn't the answer 6/8/

62. ## Algebra Multiple choice revised!! HELP

I have a few questions I need help with! Please explain if my answer was not right how you got to it. I got 1.) B 2.) A 3.) C 1. Solve the system by triangularizing the augmented matrix and using back substitution. If the system is linearly dependent, give

63. ## science

1. For the three cubes shown below, determine their surface area, volume and surface area to volume ratio. Then, circle the one you believe would be the most efficient and write a summary stating why.

64. ## Algebra 2 ..

Please explain on how to do each of these! *Let (x) be defined for all positive integer values of xas the product of all even factors of 4x. For example, (3)=12x6x4x2=576. What is the value of (5)? Someone says that it is f(5)= 20x10x2x4=1600 I DO NOT GET

65. ## government

how did the watergate scandal gain attention? and why was an investigation launched?

66. ## Chemistry

Titration of 0.6500g of an acid requires 182.42 mL of 6.020x10^-3 N NaOH to reach the endpoint. What is the mass of an equivalent of this acid?

67. ## Chemistry

How do you distinguish between fluorene and acetanilide? Suggest methods other than melting point and chromatography.

68. ## Algebra Multiple choice!!! Help

1.) Find the values of a, b, and c that will make the statement true. [5 a -2] [5 102] [3 4 –b] = [-3 -4 3] [2c 5 9] [-2 5 9] a.) 8R1-R2--> =R2 b.) -8R1-R2 -> =R2 c.) –8R1 +R2 -> =R2 d.) 8R1-R2 -> =R2 2.) Solve the system by triangularizing the

69. ## math

the diamond taxi company charges an initial fee of $3.00 plus$2.00 per mile for each ride. a) using the table show the cost (C) of taking a taxi 0-5 miles number of miles cost(c) 1 ? 2 ? 3 ? 4 ? 5 ? can you show me to do the number of miles for 1 and then

70. ## algebra

The perimeter of a triangle is 47 miles. The first side is 5 miles less than twice the second and the third is 2 miles more than the first. Find the lengths of each side.

71. ## algebra......

Given f(x)=(x−1)(x−2)+(x−2)(x−5)+(x−3)(x−8), what are the sum of the roots of f(x)?

asked by i need help from anyone!
72. ## PHYSICS!!!!

An 80 kg man is riding in an elevator from the first floor to the 34th floor. The elevator and man are moving at a constant speed. What is the net force on the man in Newtons.

73. ## Product of Roots of Sums of Products of Difference

What is the product of all roots to the equation ++(x−1)(x−2)(x−3)+(x−2)(x−3)(x−4)(x−3)(x−4)(x−5)+(x−4)(x−5)(x−6)(x−5)(x−6)(x−7)+(x−6)(x−7)(x−8)=0?

74. ## ALGEBRA(Sum of Absolute Value Differences)

As x ranges over all real values, what is the minimum value of f(x)=x−123+x−456+x−789?

75. ## math

the diamond taxi company charges an initial fee of $3.00 plus$2.00 per mile for each ride. a) using the table show the cost (C) of taking a taxi 0-5 miles number of miles cost(c) 1 ? 2 ? 3 ? 4 ? 5 ? can you show me to do the number of miles for 1 and then

76. ## Trig

Use a half-angle identity to find the exact value for sec(x/2) if sinx = -12/13 ; 3pi/2 < x < 2pi

77. ## Chemistry

1. Which of the following metals is oxidized by calcium ions? *potassium zinc iron lead 2. The first electrochemical cell was invented by ____. Michael Faraday *Alessandro Volta James Maxwell Benjamin Franklin 3. Why can't a lead storage battery be

78. ## government?

Which feature did the State constitutions and the Articles of Confederation have in common? a. royal governors b. bill of rights c. principle of popular sovereignty d. a strong executive elected by popular vote

79. ## Management

The bulbs manufactured by a company gave a mean life of 3000 hours with standard deviation of 400 hours. If a bulb is selected at random, what is the probability it will have a mean life less than 2000 hours? Question: 1) Calculate the probability. 2) In

80. ## Algebra

Paula Scott, a massage therapist needs 3 ounces of a 20% lavender oil solution. She has only 5% and 30% lavender oil solutions available. How many ounces of each should Paula mix to obtain the desired solution?

81. ## Algebra

Mr. and Mrs. Abdullah invest a total of $10,000 in two savings accounts. One account pays 5% interest and the other 6%. Find the amount placed in each account if the accounts receive a total of$540 in interest after one year.

82. ## Management

The price P per unit at which a company can sell all that it produces is given by the, function P(x) = 300 — 4x. The cost function is c(x) = 500 + 28x where x is the number, of units produced. Find x so that the profit is maximum., Question:, 1) Find the

83. ## physics

A bridge is supported at both ends (500m between supports). A Car (250 Kg) is at 100m from the left support. A truck (4000 Kg) is at 200m from the left support. Find the forces on the supports

84. ## Algebra

An air plane can travel 560 miles per hour with the wind and 480 miles per hour against the wind. Determine the speed of the plane in still air and the speed of the wind.

85. ## chemistry

Phosphoric acid is a triprotic acid with the following pKa values: pKa1=2.148 pKa2=7.198 pKa3=12.375 You wish to prepare 1.000 L of a 0.0200 M phosphate buffer at pH 7.11. To do this, you choose to use mix the two salt forms involved in the second

86. ## algebra 1

write an algebraic expression that could be used to represent the perimeter of the triangle below. write the expression in simplest form. triangle 3x+1 3-x 2x+4 A: 6x+2 B: 5x-8 C: 4x+8 D: 6x-2

87. ## Algebra

Two cars start at the same point at Alexandria, verginia, and travel Ans 50mph, 55mph 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed of each car.

88. ## Algebra

Two cars start at the same point at Alexandria, verginia, and travel 2 opposite directions. One car travels 5 miles per hour faster than the other car. After 4 hours, the two cars are 420 miles apart. Find the speed of each car.

89. ## math

Part 1 : Store equipment is purchased on January 1, 2002 at a cost of $14,000 and$1,000 was spent on its installation. The depreciation is written-off at 10% on the original cost every year. The books are closed on December 31, every year. Instructions:

90. ## Algebra

The floor of a shed has an area of 54 sq.feet. Find the length and width if the length is 3 feet less than twice its width.

91. ## Statistics

An orchestra consists of 25 members. The youngest member is 32 years old. She leaves and is replaced by a new member who is 30 years old. By how much does the replacement change the average age of the members of the orchestra? By how much does the

92. ## math

The total weekly cost (in dollars) incurred by Lincoln Records in pressing x compact discs is given by the following function. C(x) = 2000 + 2x - 0.0001x2 (0x 6000) (a) What is the actual cost incurred in producing the 1041st and the 2141st disc? (Round

93. ## queen of peace academy

If 1g of sodium-24 has decayed from a sample that was orinally 2g. How old is the sample?

94. ## Statistics

Weights of male mountain lions follow the normal distribution with a median of 150 lb and an interquartile range of 8.2 lb.  Find the 75th percentile of the weights. Find the 95th percentile of the weights.

95. ## mathematics

what is a rectangular area model?

96. ## math

The Thompson Company uses standard costing and has established the following direct material and direct labor standards for each unit of Lept. Direct materials: 2 gallons at $4 per gallon Direct labor: 0.5 hours at$8 per hour During September, the company

97. ## Trig

Simplify (sin^2)*(67.5deg) - (cos^2)*(67.5deg) and then evaluate exactly.

98. ## Math

Jimmy jumped into a lake from a 12-foot-high cliff with an initial upward velocity of 7 feet per second. Find the time in seconds it took Jimmy to enter the water. Use the model for vertical motion given by the equation h = -16 t squared + vt + s

99. ## English

Red Scarf Girl - I need a 3-4 sentence summary, central idea, and a quote from the book that would support the central idea.

100. ## Math

a park is 3/4 mile long and 1/2mile wide. Which fraction represents the ratio of the parks length to its width? I did it by 3/4 divided by 1/2 this equals 1 1/2 or 3/2 Is this correct?

101. ## math

a lab assistant wants to make 5 liters of 27.8% acid solutions. if solutions of 50% and 13% are in stock, how many liters of each must be mixed to prepare the solution?

102. ## social studies

did Millard Fillmore want woman rights ?

1. A person's belief that he or she needs a drug to feel good or function normally (1 point) addiction psychological dependence emphysema tolerance 2. A large, dome-shaped muscle below the lungs (1 point) trachea alveoli diaphragm emphysema 3. Smoke that

104. ## AP Macroeconomics

Japan, the European Union, Canada, and Mexico have flexible exchange rates. Suppose Japan attracts an increased amount of investment from the European Union. Using a correctly labeled graph of the loanable funds market in Japan, show the effect of the

105. ## math

Find the average cost function C associated with the following total cost function C. C(x) = 0.000007x3 - 0.06x2 + 110x + 76000 C(x) = ?? (a) What is the marginal average cost function C' ? C'(x) = ?? (b) Compute the following values. (Round your answers

106. ## Math

Write 2.97 as a fraction, decimal and percent

107. ## math8

there are two box and whisker plots class a: median=83 maximum #=100 minimun#=70 upper quartile=85 lower quartile=80 class b: median=80 maximum= 100 minimum=60 upper=90 lower=70 what describes the results? the medians for the two classes are the same. (i

108. ## concepts to population health

Why is it important to use rates for comparison of health and disease among subpopulations?

109. ## Spanish

5. Fill in the blank with the correct form of the verb jugar. yo __________ My Answer: yo juego 6. Fill in the blank with the correct form of the verb jugar. nosotros __________ My Answer: nosotros jugamos 7. Fill in the blank with the correct form of the

110. ## spanish

15. If you do an activity every day, which expression would you use to express that? siempre *todos los días nunca muchas veces a veces 16. If you do an activity always, which expression would you use to express that? *siempre nunca todos los días muchas

111. ## Public speaking

Public speaking has been formally studied since: A. the 5th century. B. the 20th century. C. recently. D. communication courses were offered at universities. is it B 2. Early study of public speaking was known as: A. public communication. B. rhetoric. C.

112. ## Public Speaking

For communication to take place, there has to be: A. transmission of the message. B. medium. C. sharing of meaning. D. absence of noise. is it A 2. Which is NOT a benefit of studying public speaking? A. Creates good first impression on others B.

113. ## math

The population mean length of a hospital stay for surgery is 5.5 days and the standard deviation is 1.9 days. What percentage of patients are hospitalized for 3.9 days or less? I've read the book and looked at the explanation that it gives and it's not

114. ## science

can you describe the process of cellular respiration.include the words:sugar,energy,carbon dioxide,and water

115. ## Spanish

I tried on 8 but i didn't get 9. I do not know how to do these, so please help. Thank You. 8. Which of these sentences is correct? Juego baloncesto. Juego a la baloncesto. *Juego al baloncesto. 9. Which of these sentences is correct? Juego al golf. Juego

116. ## Public speaking

In a world of ____________, communication skills help us to interact with people whose backgrounds are different from our own. A. careers B. changes C. technology D. personal relationships A is the only option tat makes sense to me but i'm not sure if its

117. ## Statistics

Hello. I would like to ask a college statistics question. Q. One hundred draws are made at random with replacement from the box [1,2,2,5]. The draws come out as follows:17 [1]'s, 54 [2]'s, 29 [5]'s. Fill in the blanks, using the options below; show work.

118. ## calculus

determine the point of intersection of the tangents at the points of inflection to the curve f(x)= x^4 – 24x^2 – 2

119. ## Math Plz help

survey about the student government program at a school finds that of 245 students: 218 students like the program 27 students think the program is unnecessary If a circle graph were made from this data, what would the measure of the central angle be for

120. ## math

how many posts will be needed if the fence has 47 sections?

121. ## Finite Math

The reading list for a literature class has 6 fiction and 8 nonfiction books. A student is to write a report on 5 books from the list during the semester. The report must include at least 1 and at most 4 reports of fiction books. In how many ways can the

122. ## math

a copy machine makes c copies in m minutes according to the equation c=60m. what is the unit rate of copies per minute? I think it is m but not sure, can you help me understand how to figure out this equation. Thanks

123. ## chem

In an excess of NH3(aq), Cu2+ ion forms a deep blue complex ion, Cu(NH3)42+, which has a formation constant Kf = 5.6 1011. Calculate the Cu2+ concentration in a solution prepared by adding 4.8 10-3 mol of CuSO4 to 0.500 L of 0.32 M NH3.

124. ## math

how many posts will be needed if the fence has 47 sections?

125. ## psychology

Janet has been attending Killian High School for three years. At the beginning of her senior year, she is enrolled in Ms. Brosham's AP English Class. She heard from her two older siblings that Ms. Brosham was a hard-nosed, crusty teacher who did not

126. ## Algebra Multiple Choice help!!

I need help with these! I got B for 1. C for 2. and D for 3. Thanks for the help! 1.) Find the values of a, b, and c that will make the statement true. [5 a -2] [5 102] [3 4 –b] = [-3 -4 3] [2c 5 9] [-2 5 9] a.) 8R1-R2--> =R2 b.) -8R1-R2 -> =R2 c.)

127. ## english

Special education services for young children are with disabilities a. cannot be enforced through laws b. depend on parent efforts c. do not involve the head Start program d. are rooted in federal legislation My answer is d.

129. ## chemistry

Phosphoric acid is a triprotic acid with the following pKa values: pKa1=2.148 pKa2=7.198 pKa3=12.375 You wish to prepare 1.000 L of a 0.0200 M phosphate buffer at pH 7.11. To do this, you choose to use mix the two salt forms involved in the second

130. ## Statistics

A hospital claims that the mean waiting time at its emergency room is 25 minutes. A random sample of 16 patients produced a mean wait time of 27.5 minutes with a standard deviation of 4.8 minutes. Use the 1% level of significance to test is the wait time

131. ## Statistics

DM Co. sells computer parts by mail. The company claims that at least 90% of all orders are delivered on time. A sample of 150 orders showed that 129 were mailed on time. Is the company’s claim true? Test using the 2.5% level of significance. Use the 5

Siberian tigers originated in the far northern continent of Asia. The climate is extremely cold, since much of the land is within the Artic Circle. They were forced south over time and now reside in Southeast Asia, such as India, Thailand and Cambodia.

133. ## physics

A 92-kg man's thighbone has a relaxed length of 0.56 m, a cross-sectional area of 6.0 10-4 m2, and a Young's modulus of 1.2 1010 N/m2. By how much does the thighbone compress when the man is standing on both feet? 1 µm

134. ## Grammar (Ms. Sue)

I apologize for asking the same question, but I misunderstood the directions. The following sentences are written in the present tense. Rewrite each sentence in each of the other five tenses. 1). I collect. 2). You split. 3). They teach. 4). We give. 5).

135. ## physics help

The upper surface of a cube of gelatin, 6.9 cm on a side, is displaced 0.67 cm by a tangential force. If the shear modulus of the gelatin is 946 Pa, what is the magnitude of the tangential force?

136. ## physics

A 62.0 skier is moving at 6.10 on a frictionless, horizontal snow-covered plateau when she encounters a rough patch 3.30 long. The coefficient of kinetic friction between this patch and her skis is 0.330. After crossing the rough patch and returning to

137. ## math

The scatter diagram of midterm scores and final scores in a large class is football shaped. For about 80% of the students, the regression estimate of final score based on midterm score is correct to within 15 points. For about 95% of the students, the

138. ## chemistry

The triprotic acid H3A has ionization constants of Ka1 = 9.9× 10–2, Ka2 = 2.7× 10–8, and Ka3 = 5.9× 10–11. a). Calculate the following values for a 0.0570 M solution of NaH2A H+ ?? [H2A^-/H3A]?? b). Calculate the following values for a 0.0570 M

139. ## math

need to know how to find the distrbutive property of 50x62,159= (50x )+(50x )+(50x100)+(50x50)+(50x9)

140. ## Science

Explain why .100 m NaCl in water does not have a freezing point equal to a) -0.183 degrees Celsius b) -0.366 degrees Celsius

141. ## chemistry

What is the molarity (moles per liter) of an aqueous solution that is prepared by dissolving 5.58g NaOH (MW=40) in enough water to make 250mL of solution?

142. ## chemistry

What mass of KNO3 (MW=101) is needed to prepare 45omL of 0.250 M KNO3 in water?

143. ## Math

All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion: 1. List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was

144. ## statistics

Undergraduates in a large university class were asked to record the time they spent on the most recent homework. In a histogram of the recorded times, the height of the bar over the interval “1 hour to 3 hours” is 4% per hour. The height of the bar

145. ## statistics

The scatter diagram of the lengths and widths of the petals of a type of flower is football shaped; the correlation is 0.8. The average petal length is 3.1 cm and the SD is 0.25 cm. The average petal width is 1.8 cm and the SD is 0.2 cm. (a)One of the

146. ## philosophy

I am to write a two page dialogue between Socrates and a person. I was thinking about writing about domestic violence. What do you think about that subject. Should I use statistics and numbers regarding this issue.

147. ## standardized Testing

Is it possbile to score in the 100th percentile on a given standardized test?I would think no but why not?

Solve for x? 0 = -9/5 x -9

149. ## Grammar (Ms. Sue)

What is the present progressive tense of "study"?

150. ## Lang. Arts

"Great works are performed, not by strength, but by perseverance.” The quote from Samuel Johnson at the beginning of the story suggests that the story will be about A.the roles people perform in life. B.making adjustments to goals. C.developing stronger

151. ## Math

Let log 2 = a, log 3 = b and log 7 = c. Express the indicated logarithm in terms of a, b, and c. 1-log3 5 (3 is the subscript of the log) ans:(1-a)/b, i need someone to show me the step bcus my ans is different from the given ans. my ans=(1/a)-b.

152. ## math

mary jogged 5 7/10 miles on monday and 4 1/8 miles on tuesday. Raul jogged 6 1/2 miles on monday and 3 4/5 miles on tuesday. How much farther did raul jog on monday than tuesday.

153. ## physics

A horizontal spring with k = 45 N/m is attaches a 1.0kg block to a spring hung from the ceiling. A block is pulled down to a spot that is 30.0cm from the spring's rest position. What is it's new acceleration?

154. ## physics

An apple (m = 125g) is attached to a vertical spring (from a ceiling) that has a k value of 55 N/m. The apple is held up so the spring is un-stretched. When the apple is released, a) how far will the spring stretch? b) How fast will it be going when it has

155. ## Chemistry

I was just wondering how I would determine the pKb of a weak base that was titrated with a strong acid on a titration curve at the EQUIVALENCE POINT. And from this, how would I find the pH? PLEASE HELP!!

156. ## pre calculus

Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x^2+y^2-12x-4x+36=0 How on earth do I do this?

157. ## Grammar (Ms. Sue)

How am I supposed to write the capitalized word in present progressive tense? "People (LIVE) today in a way that is very different from the way their parents and grandparents once lived."

I need help with these! I got B for 1. C for 2. and D for 3. Thanks for the help! 1.) Find the values of a, b, and c that will make the statement true. [5 a -2] [5 102] [3 4 –b] = [-3 -4 3] [2c 5 9] [-2 5 9] a.) 8R1-R2--> =R2 b.) -8R1-R2 -> =R2 c.)

159. ## Grammar (Ms. Sue)

Is this correct way to write the word "borrow" in present progressive tense? "Today, the average American is borrowing more money than ever before."

160. ## Algebra

Graph the function. Compare the graph with the graph y= x² 1. y=x²+5

161. ## physics

What are the first, second, and third frequencies audible from a 20 cm long organ pipe when (A) only one end is open and when (B) both ends are open. The speed of sound through the air inside the organ pipe is 343m/s. (Hint: if a harmonic does not exist,

162. ## programming

The village of Ringwood conducted a census and created records that contain household data, including income. Ringwood has exactly 75 households. Write a program into which a village statistician can enter each of the 75 household income values, and

163. ## Math

the larger of the two numbers is 8 more than twice the smaller. The sum of the numbers is 10 less than three time the larger. Find the numbers

164. ## Maths

What is the sum of all integer values of n satisfying 1≤n≤100, such that n2−1 is a product of exactly two distinct prime numbers?

165. ## programming

Create the logic for a program that prompts a user for three numbers and stores them in an array. Pass the array to a method that reverses the order of the numbers. Display the reversed numbers in the main program.

166. ## math

The ocean covers about 71% of the Earth’s surface. If the total surface area of the Earth is about 510 million square kilometers, how many square kilometers are covered by the ocean?

167. ## Intermidete Algebra

A rectangle's length is twice its width and it's perimeter is 48m. Find the dimensions.

168. ## Maths

Let f be the function defined as f(x)=x2 in the domain [−7,+7]. The range of f(x) is [a,b]. What is the value of a+b?

169. ## public speaking

public speaking has been formally studied since

170. ## Maths

What is the sum of all integer values of n satisfying 1≤n≤100, such that n2−1 is a product of exactly two distinct prime numbers?

171. ## vocab

Industry antonym??

172. ## Maths

What is the sum of all integer values of n satisfying 1≤n≤100, such that n^2−1 is a product of exactly two distinct prime numbers?

173. ## Maths

Given tanθ=−4/3, where π/2

174. ## Math

What is 9/20 in simplest form?

175. ## ECONOMICS

Singer Taylor Swift has a monopoly over a scarce resource: herself. She is the only person who can produce a Taylor Swift concert. Does this fact imply that the government should regulate the prices of her concerts? Why or why not?

176. ## Maths

How many integers satisfy the inequality ∣10(x+1)/(x^2+2x+3)∣≥1?

177. ## Algebra

Suppose you buy flour and cornmeal in bulk to make flour tortillas and corn tortillas flour costs 1.50lb cornmeal costs 2.50lb you want to spend less than 9.50 on flour and cornmeal and you need at least 4lb altogether a) write a system of inequalities

178. ## public speaking

communicating effetively helps us to succeed in areas of

179. ## Math

-5(t-8)-(t+7)=6

Write the equation for the depreciation of the value of your car for t years at 14% per year.

181. ## dividing fractions

What is 4/9 divided by 1 1/2

a copy machine makes c copies in m minutes according to the equation c=60m. what is the unit rate of copies per minute? I think it is m but not sure, can you help me understand how to figure out this equation. Please help! Thanks