# Questions Asked onApril 24, 2016

1. ## Algebra

The table shows the number of hours that a group of friends spent in their first week training to run a marathon. In the second week, they each add five hours to their training times. What are the mean, median, mode, and range of times for the second week?

2. ## precalc

tan(θ + ϕ); cos(θ) = − 1/3 θ in Quadrant III, sin(ϕ) = 1/4 ϕ in Quadrant II evaluate the expression

3. ## math

the table below shows the population of four countries for the year 2006 expressed in scientific notation. Population in 2006 country population Lebanon 3.90x10^6 Mexico 1.08x10^8 Peru 2.84x10^7 Spain 45.5x10^6 of the countries listed, which one had the

Lisa Richter deposited \$5,000 at 4% compounded semiannually for three years. At the beginning of the fourth year, Lisa deposited \$2,500. What would her balance be at the end of five years assuming she is still earning 4% compounded semiannually?

5. ## English

African slaughter rituals should be allowed in the suburbs?

6. ## Math

Arabella's password consists of 1 letter followed by two digits. What is the probability of correctly guessing Arabella's password?

7. ## Math

Samina spent 1\8 of her money to buy books ,1\5 to buy clothes or 1\10 give to charity, if she had still rupees 15 ,more than half of her money ,find the amount she originally had

8. ## Math, algebra 2

You are stacking soup cans for a display in a grocery store. Your manager wants you to stack 120 cans in layers, with each layer after the first having one less can then they layer before it. One can should be in the top layer. If you use all 120 cans, how

9. ## life orientation

make six suggestions on how to combat the violations of human rights identified by you in the previous questions and indicate any organisations you have come about in your research and indicate how they combat the human rights violations or discriminations

10. ## Probability

jeff has 8 red marbles, 6 blue marbles, and 4 green marbles that are the same size and shape. he puts the marbles into a bag, mixes the marbles, and randomly picks one marble. what is the probability that the marble will be blue?

11. ## math

Estimate the circumference of the circle with the given radius or diameter. Use 3.14 for

12. ## life orientation

Critically discuss six ways that the human rights violations influence individuals,groups and the broader south african community

13. ## PHYSICS

What is the potential energy of a 150 kg diver standing on a diving board that is 10 m high?

14. ## math

Describe xenophobic human rights violation that is taking place in your community or in a neighbouring community.give your own position on this issue

15. ## life orientation

critically discuss six ways that the human rights violations influences individuals,group and the broader south African community

16. ## geometry

Find the volume in terms of pi of a sphere with a surface area of 9 pi sq ft

17. ## Chemistry

1.) A closed 5.00 L container is filled with a mixture of 4.00 moles of hydrogen gas, 8.00 moles of oxygen, 12.0 moles of helium, and 6.00 moles of nitrogen. What is the pressure in this container at a temperature of 25 °C? 2.) A closed 5.00 L container

18. ## Algebra

Compare the line passing through the points (−3, −11) and (6, 4) to the line given by the equation y=35x−6. A. They have the same slope. B. They have the same x-intercept. C. The two lines are perpendicular. D. They have the same y-intercept. I say c

19. ## American history

Which of the following occurred after coalition troops entered Kuwait? A. UN passes a resolution demanding Iraqi troops leave Kuwait. B. President H.W. Bush decides to enforce the UN resolution requiring Iraq to pull its troops from Kuwait. C. Iraqi forces

20. ## Absolute and relative change

You are charged \$279 on your credit card for a hotel stay, you call to complain about the unexpectedly high charge, but are told there are a total of 24% taxes for hotel rooms where you stayed. What was the advertised price of the room before taxes?

21. ## Math

A sandwich shop sells a foot-long grinder for \$8 and a calzone for \$6. Which equation shows the relationship between the amount of each type of product sold and the total sales, in dollars? A. 14(x + y) = z; x represents calzones sold; y represents

22. ## Physics

Question Three capacitors, each of capacitance 120 pF, are each charged to 500 V and then connected in series. Determine (a) the potential difference between the end plates, (b) the charge on each capacitor, and (c) the energy stored in the system.

23. ## English

Traditional healers should be allowed to practise and prescribe medicine in hospitals and clinics

24. ## linear modeling

If rain is falling at a rate of ¼ inch per hour, how many inches of rain would you expect after 6 hours?

25. ## Chemistry

The average rate of disappearance of ozone in the reaction 2O3(g) ---> 3O2 (g) is found to be 8.12 x 10^-3 molecules over 15 seconds. What is the rate of appearance of O2 during this interval

26. ## math

a triangle has sides 8cm and 5cm and an angle of 90 between them. calculate the smallest angle of the triangle

27. ## Physics2

A 2.0-microFarad capacitor is charged to 50V and then connected in parallel (positive to positive plate) with a 4.0-microFarad capacitor charged to 100V. (a) What are the final charges on the capacitors? (b) What is the potential difference across each?

28. ## Science

Four equal point charges each 16 microcoulomb are placed on the four corners of square of side 0.2m.Calculate the force on any one of the charge.

29. ## Help Please - Genetics

Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms can be used once, more than once, or not at all. Gene ______ (also called trans-acting regulatory proteins) are proteins that bind to DNA sequences and

30. ## linear modeling

The fair market rental rate for Columbus was \$730 in 2013 and \$551 in 2003. Find the average rate of change for rent in Columbus during this period.

31. ## life orientation

Six ways that the human rights violations influences individuals,groups and the broader south african community

32. ## chemistry

Calculate the de Broglie wavelength (in pm) of a hydrogen atom traveling 450 m/s .

33. ## Math

In trail mix the ratio of cups of peanuts to cups of chocolate is 3 to 2. How much chocolate would be needed if you had 1 or 5 cups of peanuts?

34. ## Absolute and relative change

If gas prices are now \$3.75 and they were up 10% from 6 months ago, how much were gas prices 6 months ago?

35. ## science

An athlete runs along a circular track of radius 20m.Calculate the distance and displacement covered by him after completing one and a half round.

36. ## statistics

Four percent of DVD players manufactured by an electronics company are defective. Suppose six DVD players are randomly selected from the production line. Each DVD player is determined to be defective or non-defective. a. What is the probability that none

37. ## English

English is the language of opportunity why bother to teach indigenous languages?

38. ## Chemistry

To draw the lewis dot structure of H3COH3, Do I need to rearrange the formula as CH3OCH3? If not, On paper I have O H H C O C H H H I am not sure if this is the right structure.

asked by My name is Earl
39. ## Algebra

1.Simplify the radical expression. √5+6√√5 A.5√5 B.7√10 C.7√5 D.5√10 2.Simplify the radical expression. 2√6+3√96 A.14√6 B.14√96 C.5√96 D.50√6 3.Simplify the radical expression. (8+√11)(8-√11) A.53 B.75+16√11 C.-57 D.64+√11

40. ## Chemistry

When the power supplying a 30.0 gallon water heater was turned off, the temperature dropped from 75.0 degrees celsius to 22.5 degrees. How much heat was lost to the surrounding? I know I need to find the energy and or heat lost, but how will i get the mass

41. ## Ic

Write an application that prompts the user for two integers and then prompts the user to enter an option as follows: 1 to add the two integers, 2 to subtract the second integer from the first, 3 to multiply the integers, and 4 to divide the first integer

42. ## Physics

A 2.0-microF capacitor is charged to 50V and then connected in parallel (positive to positive plate) with a 4.0-microF capacitor charged to 100V. (a) What are the final charges on the capacitors? (b) What is the difference across each?

43. ## LO

a newspaper article to warn people against engaging with fraud

44. ## statistics

Individual M&M plain candies have weights that are normally distributed with a mean weight of 0.8565 g and a standard deviation of 0.0518 g. If you randomly select 465 M&M plain candies, what is the probability that their mean weight will be less than

45. ## Chemistry

0.0045 M HNO3 calculate the H3O concentration

46. ## Life orientation

Identify your human rights violation or discriminations and explain in and introductory pharagraph why you choose the specific human rights violation or discrimination

47. ## Quantitative, stastics and business

The distribution of annual earnings of all bank tellers with five years of experience is skewed negatively. This distribution has a mean of Birr 15,000 and a standard deviation of Birr 2000. If we draw a random sample of 30 tellers, what is the probability

48. ## Chemistry

You prepare a buffer solution by dissolving 2.00 g each of benzoic acid, C6H5COOH and sodium benzoate, NaC6H5COO in 750.0 mL of water. What is the pH of this buffer? Assume that the solution's volume is 750.0 mL.

49. ## english

1. Reich says, “When we see the contrast between the values we share and the realities we live in, that is the fundamental foundation for social change.” What do you think about that statement? How would you describe the disconnect between American

50. ## Math

Scores on the LSAT are approximately normally distributed. In fact, published reports indicate that approximately 40 percent of all test takers score at or between 145 and 155, and about 70 percent score at or between 140 and 160. The full range of scores

51. ## English

Traditional healer should be allowed to practise and prescribe medicine in hospitals and clinics

52. ## statistics

A math test consists of 17 multiple choice questions, each with five possible answers (a, b, c, d, e), only one of which is correct. Assume that a student takes the test and randomly answers the questions. What is the probability that the student will get

53. ## life orientation

ways that the human rights violations influences individuals,groups and south african broader

54. ## Math

If there are seven children lining up for recess, how many different ways can they line up?

55. ## Math

Seth uses a school camera to take pictures for the yearbook and for the school paper. Last month he took 270 pictures for the yearbook and 180 pictures for the school paper with this camera. Which proportion can be used to determine p, the percentage of

56. ## Quantitative, stastics and business

A company has three machines A, B and C which all produce the same two parts, X and Y. of all the parts produced, machine A produces 60%, machine B produces 30%, and machine C produces the rest. 40% of the parts made by machine A are part X, 50% of the

57. ## Stastics

Can someone help me and let me know if what I have solved is correct. A researcher randomly surveyed 300 high school seniors and determined 225 stated they drive a car to high school. We are interested in the population proportion of seniors who drive a

How this corruption and fraud impact negatively in the country e.g tax/ service delivery

59. ## Math

into the​ air, and its height h in feet after t seconds is given by h left parenthesis t right parenthesis equals negative 16 t squared plus 96 t plus 3h(t)=−16t2+96t+3. ​(a) What is the height of the baseball when it is​ hit? ​(b) After how many

60. ## Algebra

Samina spent 1\8 of her money to buy books ,1\5 to buy clothes or 1\10 give to charity, if she had still rupees 15 ,more than half of her money ,find the amount she originally had

62. ## statistics

the marks of 100 students in an examination are normally distributed with mean of 25 marks and a standard deviation of 10 marks. Given that the pass mark is 20, estimate the number of students who passed the examination.

63. ## Anti-Derivatives

A stone is dropped from the edge of a roof, and hits the ground with a velocity of −170 feet per second. Assume the acceleration due to gravity is -32 feet per second squared. How high (in feet) is the roof? I have found s which is 16^2 but I do not know

An equation is shown below: 4(2x - 5) = 4 Part A: How many solutions does this equation have? (4 points) Part B: What are the solutions to this equation? Show your work. (6 points)

65. ## Absolute and relative change

You are charged \$16.05 for a meal. Assume sales tax is 7%, what was the menu price for the meal?

66. ## Math

Scores on the LSAT are approximately normally distributed. In fact, published reports indicate that approximately 40 percent of all test takers score at or between 145 and 155, and about 70 percent score at or between 140 and 160. The full range of scores

67. ## Phys1

A 2μF capacitor is charged to 50V and then connected in parallel with a 4μF capacitor charged to 100 V.? Determine (a) the charge and potential difference of the system, (b) the charge on each capacitor of the system, (c) the energy stored in the system,

68. ## Life orentatlon

Evaluate the physical social and economic consequences of this crime to the offender. How did this corruption and fraud impact negatively in the country: for example service delivery, tax, expense of trial

69. ## Research

How much did the watsons goes to birmingham trip cost in all. Including food, gas, motels,etc.

70. ## Economics

A detail explanation with graphs ,of the milk would have been determined in the absence of government involvement in the market

71. ## Chemistry

Consider the following reaction in water: P4 (s) + 6 H2O (l) → 2 PH3 (g) + 2 H3PO3 (aq) If you allow 23.42 g of P4 to react what would be the pressure that the dry gas would exert on a 15.00 mL container at STP. Assume all of the phosphorus reacted. This

73. ## life orientation

Three human rights violations and their examples

75. ## science

A 5 C charged is placed on the 0 cm mark of a meter stick and a - 4 C charged is placed on the 50 cm mark what is the electric field at the 30 cm mark

76. ## math(counting)

an anagram of a word is obtained by permuting its letters. a-how many anagrams does the word "MAIRE" have b-Same question for the word "OISEAU"

77. ## Algebra 1

Explain why the two equations below have the same solutions. x + 3y = −1 −2x − 6y = 2 A. The two equations have the same slope, so they have the same solutions. B. The second equation is a multiple of the first equation, so they have the same

78. ## Life orientation

Three courses or study fields you are interested in following after grade 12 and two reason why you find this suitable course for each choice

79. ## Science

Why is it important for the substances to start at the same temperature??

80. ## Chemistry

Balanced chemical equation for H2O + SO2 --> O3 + H2S + SO3?

81. ## Math

24 oz. of soda cost \$1.29. At that rate, how much would you expect 30 oz. of soda to cost?

82. ## cs 2

WRITE A PROGRAM THAT WILL ASK FOR A PRICE. IF THE PRICE IS GREATER THAN 1000, COMPUTE A 10% DISCOUNT FROM THE ORIGINAL PRICE. DISPLAY THE COMPUTED DISCOUNT.

83. ## Phys

Three capacitors, each of capacitance 120 pF, are each charged to 500 V and then connected in series. Determine (a) the potential difference between the end plates, (b) the charge on each capacitor, and (c) the energy stored in the system.

84. ## Math

M varies directly as n and inversly as the squere of p. If m=3 when n=2 and p=1.find m in terms of n and p.

85. ## organic chemistry

Apart from the fact that between the two structures, only cyclohexe-4-ene-cis-1,2-dicarboxylic acid has the OH group shown on the IR spectrum. In what other majors way will the IR spectrum of cyclohex-4-ene-cis-1,2-dicorboxylic anhydride differ from the IR

86. ## Statistics

For a set of scores with a mean of 111 and a standard deviation of 8, what is the percentile rank of 90? (round to two decimal places, no leading zeros)

87. ## Chemistry

Calculate the energy required to change the temperature of 256.7 mL of water at 22.0 degrees celsius to ice at a temperature of -25.5 degrees celsius. It also tells me to look up the heat of fusion and specific heat. I don't know what I need the heat of

88. ## Texas History

How did World War II improve the economy of Texas?

89. ## math

Write all possible 2 digit numbers,sum of whose digits is 12.

90. ## chemistry

If 1 L HCl has a molarity of 0.10 M, what molar concentration of 1 L AgNO 3 is needed for HCl to completely react? How much product (moles and volume) will be formed? HCl(aq)+ AgNO3(aq) ->AgC(s)+HNO3(aq)

91. ## English

Identify the subject, object, and verb in this sentence. Online classes require good time-management skills.

92. ## Physics2

Three capacitors, each of capacitance 120 pF, are each charged to 500 V and then connected in series. Determine (a) the potential difference between the end plates, (b) the charge on each capacitor, and (c) the energy stored in the system

asked by HELP Me! ASAP ^_^
93. ## math

Carol's mom wants to lay some carpet in their living room. The room measures 9 feet by 12 feet. How many square feet of carpet does Carol's mom need for the room?

94. ## Physics

A car drove 17m/s [N] for 10 seconds, and then speeds up to 25m/s [S] for 7.4 seconds. What is the average speed of the car?

95. ## math

Quang drew a 9x9 grid. Vanessa drew a 12x12 grid. They each shaded 1/3 of their grid squares. Who shaded more squares? Why did Quang and Vanessa each shaded a different number of squares?

96. ## chemistry

If 1 L HCl has a molarity of 0.10 M, what molar concentration of 1 L AgNO 3 is needed for HCl to completely react? How much product (moles and volume) will be formed? HCl(aq)+ AgNO3(aq) ->AgC(s)+HNO3(aq)

97. ## counseling

During the initial session, counselors should be sure to assess clients for each of the following problems except for:

)Describe the importance of chromatin remodeling process to transcription. Select the four correct answers. a) These alterations can be used to activate transcription of a gene by hiding its enhancer sequences. b) These alterations can be used to activate

My values: 0.012 0.008 0.005 0.0035 0.0025 0.002 0.0018 0.0017 For a graph.. What scale on the x axis should I go by to plot these values... The time is the y axis which I know the scale... But I can't think of a scale to go by for these values

100. ## Physics help

a wave with a frequency of 3.1 hz and a wavelength of 0.3 meters experiences a lengthening of wavelength to 2.6 meters what is the new frequency of this wave? a wave generator produces a wave with a frequency of 45 hz and a wavelength of 1.9 meters. If the

101. ## Math

rectangular area for cattle and uses a straight portion of a river as one side of the​ rectangle, as illustrated in the figure. Note that there is no fence along the river. If the farmer has 16001600 feet of​ fence, find the dimensions for the

102. ## chemistry

If 1 L HCl has a molarity of 0.10 M, what molar concentration of 1 L AgNO 3 is needed for HCl to completely react? How much product (moles and volume) will be formed? HCl(aq)+ AgNO3(aq) ->AgC(s)+HNO3(aq)

103. ## math

In a GP, the sum of the 3rd and 4th terms is -4 /3, and the sum of the 4th and 5th terms is -4 /9. Find the 6th term

104. ## Math

Find the area between the two curves y=x^4-10x^2+36 and y=3x^2

105. ## ALGEBRA

jOSH IS WRAPPING A BOX THAT IS 5 FEET LONG 14 FEET WIDE AND 3 FEET TALL WITH WRAPPING PAPER. hOW MUCH WAPPING PAPER WILL HE NEED TO COVER THE BOX?

106. ## Finance

If your bank pays an annual interest rate of 1.5% of balance exceeds \$750 and it averages \$815 but it falls below \$750 for 4 months do you get the other 8 months interest or you get none because of the 4 months it fell below?

107. ## math

four girls bought each a swimsuit and decided to borrow among themselves. How many possible ways can they dress up knowing that each girl can use the same swimsuit only once?

108. ## Math

by completing the​ square, what value should you add to each side of the​ equation? x^2- 7x=5

109. ## math(counting)

in how many different ways can 3 boys and 2 girls sit on a bench? in how many different ways can they sit knowing that the boys have to sit near each other and the girls also

110. ## math

Alyssa is making iced tea for a family picnic. She wants to make sure that each person can have at least 2 cups. If there are 30 people coming to the picnic, how many gallons of iced tea should Alyssa make?

111. ## American history

Which of the following was a contributing factor to the economic crisis of 2008? A. balanced budget and decreased federal deficits B. lower taxes and more disposable income for families C. indiscriminate and risky banking practices D. increased federal

112. ## chemistry buffer

Calculate the amount of sodium acetate to be added to 100ml of a 0.100M acetic acid (pka=4.76) solution to obtain a buffer of pH 4.50.

113. ## American history

The growth of the service economy in the 1990's caused A. an increase in American blue-collar jobs, such as coal mining and steel making. B. a decrease in new small businesses. C. a new industry-based economy. D. an increase in white-collar jobs, such as

114. ## Maths

Use the binomial series to find the Taylor series about 0 for the function f(x) = (1 + x)−3/5, giving all terms up to the one in x4. I have the answer; f(x)=1-3/5(x) +12/25(x^2) -52/125(x^3) + 234/625(x^4) but i am not sure how to work out the interval

115. ## math

Logan bought 12 cookies at the bakery. If 1/3 were chocolate chip, 1/3 were mint, and 1/3 were peanut butter, how many of each kind of cookie did Logan buy?

116. ## Math

A gallon of paint covers about 400 ft². How many gallons would you need to paint the walls of a room 10 feet wide, 14 feet long, and 8 feet tall?

117. ## Maths

in a game you have to guess what a number is through some clues the clues you are given are the hundreds digit is twice as large as the thousands digit the ones digit is the largest the sum of the digits is 14 the tens digit is two less than the ones digit

118. ## math

the power (P) generated in a electrical circuit is proportional to the square of the current ( L amps) . when the power is 108, the current is 6 amps. a_ write down the relationship between P,L and the constant of variation k . b_ calculate the value of k

119. ## Chemistry

A 0.18 g sample of unknown was placed in a flask and dissolved in 125 mL of deionized water. A solution of HCl (0.13 M) was used to titrate the sample, and 16 mL was required to reach the endpoint. What is the formula weight of the unknown?

120. ## chemistry

The pH of human blood needs to be between 7.35 and 7.45. You want to prepare a buffer solution that gives a pH of 7.40. You decide to use a sodium phosphate buffer: the acid is H2PO− 4 and the conjugate base is HPO2− 4 . You want the concentration of

121. ## chemistry

I posted a question several days ago: The pH of human blood needs to be between 7.35 and 7.45. You want to prepare a buffer solution that gives a pH of 7.40. You decide to use a sodium phosphate buffer: the acid is H2PO−4 and the conjugate base is

122. ## French

I have to do a blog and I have to include a cultural question in the blog, but I cannot come up with anything as I don't study French Culture. Can somebody please give an idea. Thank you

123. ## Chemistry

What is the final concentration of a solution if 15-mL of a 2.4-M solution was diluted to 100-mL and this process was repeated two more times? Please help me how to work out the problem. I am not just looking for an answer. I really want to learn.

124. ## math

What is the value of the rational expression below when x is equal to 4? (x+20/x+4)

384,239

126. ## STATS

A survey found that 36% of students still enjoy doing research in a library. A random sample of 326 students showed that 105 of them will continue to go to library. If the critical value is -1.65 what is your decision.

127. ## life orientation

examples of human rights discriminations or violations

128. ## Math

You've received an invoice for 3,000\$ with terms of 3/10,1/20,n/30 how much wld you have to pay if payed in 12days

129. ## Math

A quadratic function has a vertex of (3,-6) and the point (-1,10) lies on the graph of the function. Write the function in standard form. If you could help me with this question, that would be great. Thanks in advance.

130. ## Social Studies

What was daily life like in: the city of Rome for the Roman family for the Roman women for the Roman slaves

131. ## Urgent help Maths Ms sue

Use binomial series to find the Taylor series about 0 for the function f(x)=(1+x)^-3/5 giving all terms up to the one in x^4. Then use this series and Taylor series for sin x to find the quartic Taylor polynomial about 0 for the function f(x)=

132. ## math

according to a map the distance between hilltop and valleyfloor is 1 1/4 inches. if the map uses a scale of 1/4 inch to represent 1 mile inches what is the actual distance in mile from hilltop and valleyfloor?

133. ## Social Studies

What is Mardi Gras?

134. ## math

a board of 4 members is going to be formed from the 30 students of a class. The board is formed of a president a vice president a secretary and a treasurer. What is the number of possible boards knowing that each of the 30 students can occupy any post?

135. ## calculus

Find the critical numbers for the function f(x) = 2x / sqrt(x-1)

136. ## Math

You are making poster board boundary markers in the shape of square pyramids for a relay race. If you are including a 10-inch square as the bottom and you want the slant height to be 12 inches, how much poster board do you need? A: 340 inch B: 360 inch C:

137. ## Programming

I am having a problem with something. i nead to assing values to parameters from input.dat file without using fscanf. i need to use the terminal like a.outoutput.out i have a file like this GEN 0.0 2.1351 0.00001 500 o PEND 0.12 0.1 0.15 0.5 0 0.16 0.11

138. ## algebra

The hypotenuse of a right triangle is 8m long. One leg is 2m longer then the other. Find the lengths of the legs. How would you solve this equation?

139. ## Global Studies

Was China's one child policy only for Han Chinese or was it for everyone? I have found lots of conflicting information on this. Thank you!

140. ## Chemistry

Given info: Time(s). (ClO) mol/L 0.0. 0.012 4.0. 0.008 8.0. 0.005 12.0. 0.0035 16.0. 0.0025 20.0. 0.002 24.0. 0.0018 28.0. 0.0017 Calculate the average rate of the overall reaction

141. ## chemistry

how do i calculate a weight/vol % from a molarity given the density? Molarity is 0.0303 M density = 1.52 g/mL, molar mass is 41.99 g/mol.

142. ## math

Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and 1 point is given for a free throw. In how many ways can Joe score 15 points? My answer: 6 ways is this correct or incorrect please help

143. ## maths

Solve the equation z^5=-1 giving the solutions in polar form I've got z^5 =1 but just not sure as its a negative

144. ## Algebra

1.What is the domain of the function? Y=√3x+3 A.x≤-1 B.x>1 C.x≥-1 D.x

145. ## calculus

Find the maximum value of the function f(x)=(x^2+9x-3) / x^2

146. ## Science

I am doing an extension to get into the AP Biology course offered by my school. This particular extension asked me to use vinegar and baking soda aswell as some basic scientific tools to find the concentration of acetic acid in vinegar. I wanted to know

147. ## Chemistry

What is the wavelength of light (in nm) if the energy of the wave is 1.33x 10^-19 J? How do I work this problem out????

148. ## maths

in a GP, the sum of the 3rd and 4th terms is -4/3 and the sum of the 4th and 5th terms is -4/9. Find the 6th term.

149. ## life orientation ?

Is it a violation of my human rights to be asked the same question time after time, day after day, week after week until I am ready to scream?

150. ## math

George has 20 hats. If 1/4 of them are baseball caps and the rest are all different styles, How many hats are not baseball caps?

151. ## Economics

Demographic transition during the agricultural age means high infant and child mortality is accompanied by high birth rates and population increases occur?

152. ## Chemistry

Zn (0.85M) + Cu (1.10M) in an electrochemical cell. what is the conc of the zinc ion?

153. ## Life orientation

Identify three human rights violation or discrimination

154. ## algebra

resistance of 8 and 12ohm are joined in parallel calculate the total resistance?

155. ## Math2

Sketch the graph of this quadratic function: f(x)= 3(x-2)^2 -10. Be sure to explain the steps you take. **I don't need help with the graph part but I need to find the x and y intercepts, the equation of the axis of symmetry and the coordinates of the

156. ## Math

Claudia has test scores of 78, 88, 84, 92, 76, 98. If she wants to end up with a ''B'' average, what does she need to score on her next test? Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and

157. ## Maths

How many terms are in 4x to the power2 minus 5x plus7

158. ## Math

A bakery charges \$0.10 for a cookie that is 2 inches in diameter. If the price is proportional to the area, how much do they charge for an extra large cookie that is 8 inches in diameter? Assume that each cookie is shaped of a circle. A: \$0.40 B: \$0.80 C:

159. ## Absolute and relative change

In one region the number of students in Math 101 is 20% more than the number of students in Math 123. If there are 480 students in Math 101, how many students are in Math 123?

160. ## science

H2SO4 is labeled 93.2% and density 1.94g/cm3. Find moles in H2SO4?

161. ## Math

Use classical probability to calculate each probability. Assume individual outcomes are equally likely. Round your answer to the nearest millionth if necessary. Consider parents with four biological children. Find the probability that all four siblings are

162. ## math

Problem 10.1. In an International Peace Congress, presidents of 40 different countries are to meet. The newspaper called “World News” wants to publish, on its cover page, photos of every handshake that will take place between every two presidents at

163. ## Math

In the figure below

164. ## Calculus

a(t)=4sin3t;v(0)=1,s(0)=6 I'm trying to find expression for s(t). Should I wait till the end to add find and add constant. I got [1/9(13t-4sin(3t))+6] and it was wrong.

Solve for following applying spherical trigonometry... 1.Papua New Guinea (37° 45'N, 122°27'W)(since course was 260°) distance travelled =2250nm. A) use law of cosine to calculate a and thus altitude:or B) use law of sine to calculate N and thus

166. ## Calculus

An equation of the line with slope -1 that passes through the point (2,5) is y=-x+7

167. ## chem

factors that influence NMR intensity? All that my textbook says is "the intensity of NMR is influenced by many factors" that is not helpful at all >_>

168. ## math

Taylor series: f(x)=(1/16 +x)^(-1/4) =2-8x+80x^2 -960x^3..... and through differentiation g(x) = (1/16 +x)^(-5/4) =32-640x+11520x^2 but i then need to integrate about 0, h(x)=(1/16 +x)^(3/4) not really sure where to start out the integration one

169. ## mathematics deferential

y= ¡Ìsin x+¡Ìsin x+sin x+.............infinity

170. ## life orientation

Identity human rights violation or discrimination

171. ## math

Problem 10.1. In an International Peace Congress, presidents of 40 different countries are to meet. The newspaper called “World News” wants to publish, on its cover page, photos of every handshake that will take place between every two presidents at

172. ## Chemistry

I have a .01 M solution of N2, and the concentration of H2 in the same solution is .02. What is the Ksp.

173. ## Maths

I have 20 chocolates if somebody eats 2/5 and another person eats 1/5 how many chocolates are left

174. ## Science- Density

I'm having difficulty understanding density. I am trying to relate the concept of density to brownies. Should a brownie with baking soda have a higher or lower density compared to a brownie with no baking soda? Does a thick brownie mean a high or low

175. ## Research

How much did the watsons goes to birmingham trip cost in all. Including food, gas, motels,etc.

176. ## math

The Ruderman's swimming pool is 2m(shaded), 3m, 4m, 5m,and 6m. What is the total area of the pool? What is the area of the shaded part of the pool?

177. ## Calculus quick question pls

Why is there no vertical asymptote on F(x) = x/(x^2+1) What i learned is that to find vertical asymptote you have to set the denominator To 0 and solve for x ? In that case I find that x=-1,1

178. ## Math

Given the geometric sequence: 19, 17111, 1539121, ⋯ Find an explicit formula for an, where the first term is a1=19. an= Find a6=

179. ## Math

What are 2 numbers that are less than 13 and the LCM is 36?

180. ## math

Claudia has test scores of 78, 88, 84, 92, 76, 98. If she wants to end up with a ''B'' average, what does she need to score on her next test? answer: Claudia need to get 86 in order to have a b average

181. ## Analytical Chemistry

Calculation Of K2mno4 In Lab Class?

182. ## mathslit accounting life science tourism

what am I become with these sub guys help plz

asked by mlingo high by malondy
183. ## english

How to write a research paper?

184. ## english

there weren't no parking spaces

185. ## Chemistry- Dr.Bob222

Is there an actual value for the buffer capacity of acetic acid? I need to know the actual value, so that I can calculate the percent error for my lab.

186. ## PROB

What is minimum sample needed if you know the SD is 22.36 and an accuracy of 3.06 and you want a confidence level of 90%