# kiki

Popular questions and responses by kiki
1. ## APChem

Hi I tried to understand this but I don't know why the answer is B: Which one of the following pairs cannot be mixed together to form a buffer solution: A) NaC2H3O2, HCl B)RbOH, HBr C) NH3, NH4Cl D) H3PO4, KH2PO4 E) KOH, HF The answer is B but could you

2. ## Physics

X=1/2at^2 Solve for a Solve for t Can you please show me how to do this Thank u

3. ## Health

what is the section in the 'Medication problem A.C.T.I.O.N. plan ' resource that you would turn to when addressing the situation

4. ## mental health

Describe how you would support a client with acquire brain injury who demonstrated cognitive deficits as a result of his injury . identify a minimum of 2 possible problems you might encounter and what positive intervention strategies you would use.

5. ## Math

Which equation is equivalent to 3 ln 2 – ln 4 + 5 ln x = ln 3 + 2 ln 5? ln 2x5 = ln 75 ln (5x + 2) = ln 75 ln 2x5 = ln 13 ln (5x + 4) = ln 96

6. ## Trig

Write a quadratic equation whose roots are 5 + i radical 2 and 5 – i radical 2 ____ x^2 + _____ x+ ______=0

7. ## Algebra

A high diver is standing on a platform above a pool. Her diving path can be modeled by the function h(t)=-16t^2+8t+12, where h is her height in feet above the water and t is time in seconds. a) How high is the platform (initial height of the diver)? b)

8. ## Math

On a map 1/4 inch represents 20 miles the distance between two cities on the map is 3 3/4 inches how many miles apart are in the two cities?

Determine whether the situation calls for a discrete or continuous random variable. The number of freshmen in the required course, English 101 The braking time of a car I think the first one discrete and the second is continous is this correct?

10. ## APChem

Hi! Thank you for your help... A 25.0 mL sample of 0.723 M HClO4 is titrated with a 0.273 M KOH solution. The H3O+ concentration after the addition of 66.2 mL of KOH is ______M. (The answer is supposed to be 1.00X10^-7) How do I set this problem up? I

11. ## APChem

"The osmotic pressure of a saturated solution of strontium sulfate at 25C is 21 torr. What is the solubility product of this salt at 25C (Hint: calculate molarity from the colligative properties eqn of osmotic pressure and use it in the equilibrium

12. ## health

you are assigned to help Mrs.Smith with meals and housekeeping.Mrs smith has a large collection of tea cups.figurines and glass lamps.She wants you to dust each item separately every time you visit.this leaves no time for you to do other tasks you are

13. ## APChemistry

Hi What is the netionicequation for NaOBr disolving in watr? Thanks!

14. ## Physics

At some point during their orbit, the location of the Earth and Moon relative to the Sun will be as shown in the figure below. What are the magnitude, in N, and direction of the force experienced by the Moon, in degrees below the Sun-Moon line, due to the

15. ## physics

A 2.0-m-tall basketball player is standing on the floor a distance d from the basket, as shown in the figure below. He shoots the ball at an angle of 40.0o above the horizontal with a speed of 10.67 m/s and makes the shot. The height of the basket is 3.05

16. ## Math

Maria cut a pizza into 8 equal slices. She put a slice of pizza on 3 plates. What is the measure of the angle for the slices that are left?

18. ## Trig

If the period of a cosine function is 1/3 what is the frequency of the function?

19. ## Algebra 2

Which circle has the largest circumference? x2 + y2 = 8 (x – 3)2 + y2 = 10 (x + 3)2 + (y + 2)2 = 4 x2 + (y – 2)2 = radical 81

20. ## math

When a single card is drawn from an ordinary 52-card deck, find the odds in favor of getting a red 10 or a black 6. I think the answer is 1:12. Is that correct?

21. ## Biology

Could someone explain what concentration gradient is? My book doesn't give a definition, and the definitions on the web that I've found don't explain it very well.

22. ## Economics 201

Determine the price elasticity of demand for a microwave that experienced a 20% drop in price and a 50% increase in weekly demand quantity. I know I have to use the price elasticity of demand formula, but I keep getting the wrong answer. Can someone please

23. ## Math Help

Two people are selected at random from a group of 6 pilots and 4 engineers. What is the probability that both of them are engineers?

24. ## APChem

Is this true or false?:A buffer can be destroyed by adding too much strong acid. I thought that a buffer can be destroyed by adding too much weak acid, but I'm not sure...

25. ## Calculus

Based on a preliminary report by a geological survey team, it is estimated that a newly discovered oil field can be expected to produce oil at the rate of R(t) = 800t^2/(t3 + 32)+ 5 (0 ≤ t ≤ 20) thousand barrels/year, t years after production begins.

26. ## math

Explain how to graph information from the table

27. ## math fractions

Lana`s toy boat can sail 7 1/2 yards in 4 1/6 minutes. How far would it sail in 8 3/4 minutes if it kept the same pace?

28. ## math fractions

Sophie jogs four and one-fourth miles in seven-eighths hour. How far would she run in four and one-half hours if she kept the same pace?

29. ## History

What was the effect of this cartoon in 1867? It demonstrated the weakness of the veto power. It showed that the president was well equipped for his job. It emphasized the authority of the U.S. Constitution. It validated the need for more control of the

30. ## Math

A car was purchased for \$36,730. The following equation can be used to predict the value of the car based on it age, where t stands for the time in years: A = 36730(.82)t. If the car was purchased in March 2002, what will its value be in September 2009?

31. ## Chemistry

At STP 4 liters of O2 contains the same total number of molecules as 1L of NH3 2L of Cl2 8L of He 4L of CO2

32. ## Math

In the accompanying diagram, abcd is a rectangle with ab as a diameter of semicircle o. Diagonal bd is drawn in rectangle abcd. The length of bd exceeds the length of ab by 1, and ad=5. Please help thank you

33. ## math

what is the difference between the two expressions below: -4squared (-4)squared can you please help, thank u

34. ## math

can you please help me represent the total nummber of calories in x peanuts and y potato chips if each peanut contains 6 calories and each potato chip contain 14 calories. thank u

35. ## math

can u please help me. represent the total number of days in w weeks and 5 days represent the total number of days in w weeks and d days thank you

36. ## Geometry

To find the height of a tree, a man stands at point T. His height RT=6 ft. He stands 15 feet from point S and 25 feet from point U. What is the height of the tree, QU? A.)12 ft B.)15 ft C.)16 ft

37. ## psychology

What are the effects of type of processing and channel of presentation on recall of words? HELP!!!!!!!!!!!

38. ## physics

Two asteroids, each with a mass of 6 million kilograms are attracted gravitationally with a force of 0.75 N. How far apart are their centers?

39. ## APChemistry

If you have CL2 + H2o ---> H+ + Cl- + HOCl and you are given [HOCl] = 0.06 M and you have to find pH.... can you assume that [HOCl] =[H+] = 0.06 M since H+ and HOCl both have a coefficient of 1? Thank you

40. ## APChemistry

If you have CL2 + H2o ---> H+ + Cl- + HOCl and you are given [HOCl] = 0.06 M and you have to find pH.... can you assume that [HOCl] =[H+] = 0.06 M since H+ and HOCl both have a coefficient of 1? Thank you

41. ## APChemistry

If you have CL2 + H2o ---> H+ + Cl- + HOCl and you are given [HOCl] = 0.06 M and you have to find pH.... can you assume that [HOCl] =[H+] = 0.06 M since H+ and HOCl both have a coefficient of 1? Thank you

42. ## APChemistry

Hi If I had 40 mL of 0.1 M HOBr and mixed that with 10 mL of 0.5 M Ca(OH)2 how would I go about calclating the pH? (i don't know if titration is right because equivalence, halfway pts, etc.. are not specified).. Thank you very much.

A shoe store carries one brand of shoe in 3 styles, 5 sizes, and 4 colors. How many different shoes are available for this one brand?

The mean height of 5 students is 61.8. If one of the students leaves, the mean height becomes 60. What is the height of the absent student?

45. ## English

Paragraph One: the Resume Statement I need to write a one paragraph resume statement. This paragraph will go at the top of my resume, and convince the human resource officer to take my application seriously. It must be persuasive. Paragraph Two: The

46. ## Social Studies

1. why did sugar plantations produce such high profits a. sugar can was easy and cheap to grow b. the colonial governors placed a high tax on sugar c. europe had a high demand for sugar, molasses, and rum*** d. spanish plantation owners sold tons of sugar

47. ## Statistics

Assume the weights of Farmer Carl's potatoes are normally distributed with a mean of 7.0 ounces and a standard deviation of 1.3 ounces. He bags his potatoes in groups of 6. You buy a bag and the total weight is 36 ounces. Here we determine how lucky or

48. ## english

Which of the following is a reason to use parallel sentence structures in a literary analysis essay?

49. ## language arts

The seven wonders of the world is mostly about which of the following. A.The pyramids of Egypt. B.Architecture around the world. C.Incredible ancient structures. D.Respected building techniques. I think its's B or C.

50. ## Math

Draw and label examples of all rectangular prism built with 16 unit cubes

51. ## math fractions

1 3/10+2 1/7+2/5

5 1/3-2 3/7

53. ## math fractions

seven-twentyfourths*one and seven-eighths/three and one-half

54. ## math fractions

eleven*two and two-thirds/one and four-sevenths

55. ## math fractions

one and two-sevenths/one and nine-fourteenths

56. ## math

six*one and one-fourth*one and two-thirds

57. ## math fractions

one and five-sixths/one-half/twelve

3 3/7*2 7/12

59. ## math fractions

The teacher gives each pair of students one and fourteen-fifteenths liters to water their plants in the garden. If the pairs of students share the water evenly how much water does each student get

60. ## math fractions

12 liters of water flow out of the faucet every three-fifths minute. How much water flows out each minute?

61. ## mental health

Describe how acquired brain injury can affect the family.

62. ## Physics

If a string is vibrating in four parts, there are points where it can be touched without disturbing its motion. Explain how many points exist

64. ## Physics

Spark timer acceleration lab How do you determine the acceleration from the slope of your best fit line?

65. ## Trig

If sec A =5/4 and A is an angle in Quadrant IV, find the value of cos A. A. -4/5 B.4/5 C.-5/4 Is it choice A

66. ## Trig

If 0 ≤ x ≤ 2π, which equation is a line of symmetry for the graph of y = cos x? x = 0 x = 2π x = π y = 0

67. ## Math

The parents of twin boys started a college fund when the boys were 5 years old. They decided to invest \$6,000 into an account that compounds quarterly at a rate of 8.6% annually. If the parents do not invest any additional money into this fund, how much

68. ## Global history

Which of the following provides evidence that imperialism left a lasting impact on many colonial territories? A. Many African and Asian nations are based on former colonial boundaries. B. Many former colonies are still ruled by European governments C.

69. ## Chemisty

At STP 4 liters of O2 contains the same total number of molecules as 1L of NH3 2L of Cl2 8L of He 4L of CO2

70. ## chemistry

caculate 230 ml of 1.1 molarity HCl solution

71. ## math

can you please help. If a plane travels 550 kilometers per hour, represent the distance it will travel in h hours. thank you

72. ## physics

A 1400kg car starts at rest and rolls down a hill from a height of 12m. (a) how much kinetic energy does the car have at the bottom of the hill?(b) how fast is the car going at the bottom of the hill? Can someone explain how to do it!

73. ## CHEMISTRY

Explain, in terms of particles, concentration, and reaction rate, what you expect to happen when methane gas (CH4) and hydrogen sulfide gas (H2S) are sealed in a flask and reach a state of equilibrium. CH4 (g) +2 H2S (g) -->

74. ## apchemistry

thank you for your help before---also, what can i react with BaO to get some noticable consequence---how can i show that what MgO was involved in the reaction?

75. ## APCHemistry

Hi these are the posts from earlier---i just had a quetsion about your response: ""Apchemistry - DrBob222, Monday, April 26, 2010 at 7:10pm Your thinking is ok. All ionic solids, although composed of ions, are locked into place by the crystal lattice

76. ## math

Determine whether the situation calls for a discrete or continuous random variable. The number of freshmen in the required course, English 101 The braking time of a car I think the first one discrete and the second is continous is this correct?

77. ## math

Attendance records at a school show the number of days each student was absent during the year. The days absent for each student were as follows: 8 2 4 3 2 7 6 0 9 3 3 4 2 4 6 Create a dot plot for this data

78. ## math-word problem

Media Services charge \$20 for a phone and \$30/month for its economy plan. The equation C=30t +20 describes the total cost, C of operating a media service phone for t months. The total cost for 10 months of service is... My answer is \$320 for 10 months

79. ## math

Finding the domain of G(X)=4/4-3X So would the domain be 3 then?

80. ## APChem

If an air bubble passes unnoticed through the tip of a buret during a titration (where a weak nonvolatile acid HA is the analyte) , the calculated molar mass of HA would be too high, too low, or not affected? I thought it would be too high, since an air

81. ## APChem

does anyone know a good website i could look at so i could answer this question: ? Explain how indicators work using a chemical reaction as part of your explanation. Any websites? please? thank you!!

82. ## chemistry

What is the molecular structure of the molecule AlCl3? What characteristic is notable about the structure that helps us to understand the acidic nature of AlCl3?Write a chemical reaction between AlCl3 and NH3 ignoring any reaction between AlCl3 and the

83. ## poem

Is this a good title? Believe in yourself If there ever is a time That you shall fall Pick yourself up And stand up Be proud who you are Every single day Believe in yourself And you succeed that way Think about your future Think about your dream Push

84. ## science

A bicyclist was riding down a road. At 2.0 s, his speed was 2.0 m/s. At 5.0 s, his speed was 8.0 m/s. What was his acceleration from 2 to 5 s?

85. ## Geometry

Use an algebraic equation to find the measures of the two angles described below. Begin by letting x represent the degree measure of the​ angle's complement. The measure of the angle is 18 degrees greater than its complement. What is the measure of

86. ## Statistics

Annual starting salaries for college graduates with degrees in business administration are generally expected to be between \$30,000 and \$45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. Given

87. ## Physics

A blood sample placed in a centrifuge is subjected to a force of 4.8 10-11 N when the centrifuge is operated at 126 rev/s. What is the diameter, in cm, of the centrifuge?

88. ## Civic

A nonprofit organization does not issue stock shares or distribute its extra funds to ownership or shareholders. If all businesses were required to operate a nonprofit organization, how might that hurt a free market economy? A. People would be less likely

89. ## math

There are 24 inches of ribbon in each spool. Margaret needs 384 inches of ribbon. Which equation can Margaret use to find the number of spools, s, she needs?

90. ## Math

Why do you have to use estimation to find the number of triangles you need for the string? (I need Help Please!!!!)

Who gave the Statue of Liberty to the United States?

92. ## Sewing

List and draw five sleeves of your choice not types like reglan or set in but examples

93. ## geography

how are bays and headlands formed

94. ## History

1) Why did The British want to expand control into the Ohio Valley in the mid 17,000s? A) to force the French out of North America B)to put French settlers there under English rule C)to demonstrate Britain’s strength to France and Spain D)to gain access

95. ## Pre algebra

Which expression can be written as 9•(12+7)? A) 9+(12+7) B)(9+12)•(9+7) C)9•12+7 D)(9•12)+(9•7)

96. ## Math

Help thanks...what are some examples, no, all examples of isopentagons that you know of/can think of? I'm making some tessellations and I only know one type. Thanks in advance.

97. ## World History

Which factor was a challenge to the expansion and control of Roman territory? its location on the Mediterranean Sea its available local resources its lack of military leadership its location near Celtic and Germanic tribes

98. ## Is this correct? Algebra

9. Joe wants to fence a rectangular pen for his goats. the length of the pen should be at least 60 ft, and the distance around should be no more than 260 ft. Which system of inequalities and graph represent the possible dimensions of the pen? I want to

99. ## Statistics

I don't understand this at all.. Assume that the weights of Chinook Salmon in the Columbia River are normally distributed. You randomly catch and weigh 40 such salmon. The mean weight from your sample is 24.1 pounds with a standard deviation of 3.5 pounds.