# Questions Asked onApril 23, 2013

1. ## AP Chem

CH3CH2NH2(aq) + H2O(l) CH3CH2NH3+(aq) + OH-(aq) Kb = 5.0e-4 Ethylamine, CH3CH2NH, a weak base reacts with water according to the equation above. A 50.0 mL sample of a ethylamine solution is found to have a pH of the solution 11.60. (a) Write the expression

2. ## Statistics

A sport preference poll yielded the following data for men and women. Use a 5% significance level and test to determine if sport preference and gender are independent. Sport Preferences of Men and Women Basketball Football Soccer Men 20 25 30 75 Women 18

3. ## statistics

2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 3. If we are focused on 68% of the normal distribution, what percentage of the distribution is left in the upper tail only? 4. What value

4. ## earth

On the windward side of the mountain, should the relative humidity of the parcel change as it rises from 2000 m to 4000 m?

5. ## MAnagerial Economics

In the long Run Who play a dominant role. Options:- Income, Demand, Supply, Price.

6. ## Statistics

Based on information from Harper's Index, 37 out of a random sample of 100 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of 100 Americans who did attend college, 41 claim that they believe in

7. ## physics

Consider three charges q1 = 6.0 µC, q2 = 1.8 µC, and q3 = -2.8 µC, arranged as shown below. Q1 is positive and is 3 cm away from Q2. Q2 is also positive and is 2 cm away from Q3 which is negative. (a) What is the electric field at a point 1.0 cm to the

8. ## Psychology

An essential part of scientific thinking is not only how to use statistics correctly, but also how to identify the misuse of statistics. Our textbook authors suggest that students should: Answer distrust all statistics because they convey a false

9. ## Chemistry

Galena(PbS) and cerussite(PbCO3)are two ores of lead. A mining company is considering which of these two ores to use for the extraction of lead. The equations for the reactions occurring are process using galena: 2PbS+3O2 ---> 2PbO+2SO2 2PbO+C ---->

10. ## Math

What is the difference between exploratory and formal studies?

11. ## Psychology

Dr. Allen is trying to determine the best method by which to draw a comparison between the amount of time his students spend in the library to the grade point average of his students across the spectrum. Which research design should Dr. Allen follow, and

12. ## Life orientation

in 10-15 lines discuss ways in which pollution impacts the community.

13. ## math

i have a test tomorrow and im still not sure how to do this. can you please help me? p={a,b,c} Q={a,c,d,f} Q-P=?

14. ## history

what was One major reason for religion’s growing appeal in the 1950s?

15. ## maths

express -108a^4b^3 whole cube root in the simplest form?

A Competitive Coup in the In-Flight Magazine. When the manager for market intelligence of AutoCorp, a major automotive manufacturer, boarded the plane in Chicago, her mind was on shrinking market share and late product announcements. As she settled back to

17. ## Math

What is the difference between experimental and ex post facto research designs?

18. ## Psychology

Consider the interpretation of psychological findings. You are taking a multiple choice assessment, similar to this one, when you encounter a quandary. You see a series of four possible answer choices, two of which seem very plausible conclusions. What do

19. ## landmark project

did any workers die while building the palace of fine

20. ## Math

Suppose f(x) is a polynomial of degree of 5 and with leading coefficient 2009. Supposdm further that f(1) = 1, f(2) = 3, f(3) = 5, f(4) = 7, f(5) = 9. What is the value of f(6). The answer given in book is 241091. Please work the complete solution.

21. ## Physics

Suppose that we repeat the experiment shown in the video, but we replace one of the cylinders with a cylinder that has twice the radius (and use larger containers of water). If the height of the original cylinder is \rm h, how deeply must we submerge the

22. ## Chem

An electrochemical cell based on the decomposition of H2O2 can be constructed based on the half-reactions in the table below. Half-Reaction | Standard Reduction Potential, E° H2O2+ 2e- => 2 OH- | 0.88 V O2+ 2 H2O + 2e- => H2O + 2 OH- | -0.15 V (d)

23. ## Math

To determine whether a pancreas is functioning normally, a tracer dye is injected. A normally functioning pancrease secretes 4% of the dye each minute. A doctor injects 0.5g of the dye, and checks twenty minutes later. He finds that 0.35g of the dye

24. ## Math

The interquartile range of a data set is the ? of the ? quartile and the ? quartile. and........ In a box-and-whisker plot, one whisker represents about ?percent of the data.

25. ## math

find the present value of the following future amount. 600,000 at 6% compunded semiannually for 25 years what is the present value

26. ## UL Lafayette

Suppose that 2000 is loaned at a rate of 9% , compounded monthly. Assuming that no payments are made, find the amount owed after 4 years.

47. ## Physics

An object is placed 19.6 cm to the left of a diverging lens (f = -7.84 cm). A concave mirror (f = 11.2 cm) is placed 27.3 cm to the right of the lens Find the final image distance, measured relative to the mirror (cm)

48. ## Stats

A production process produces an item. In a recent study, the company found that 20% of all items produced were defective. Each item is inspected before being shipped. 10% of the items were misclassified( labeled as defective when they were good or labeled

49. ## Algebra

A circular mirror is surrounded by a square metal frame. The radius of the mirror is 5x. The side length of the metal frame is 15x. What is the area of the metal frame? Write your answer in factored form.

50. ## Chem

Ca(s) + 2H+(aq) → Ca2+(aq) + H2(g) An experiment is performed to determine the volume of hydrogen gas produced when calcium reacts with excess HCl(aq) as represented by the net ionic equation above. A 0.0720 g sample of pure calcium and a solution of 1.0

51. ## Physics

A 43 g ice cube at 0 C is placed in 882 g of water at 81 C. What is the final temperature of the mixture? The specific heat of water is 4186 J/kg · C and its latent heat of fusion is 3.33 × 105 J/kg . Answer in units of C

52. ## Algebra 2

Suppose you are researching the eating habits of people your age. What sampling method could you use to find the percent of students in your grade who eat five servings of fruit and vegetables each day? What is an example of a survey question that does not

53. ## math

please show me how to solve this (2x - 5y) power of 2 i am having a problem with the way to step by step please solve this

54. ## Life Orientation

Identify and describe 3 environmental health hazards that cause ill health, crisis and or disasters

55. ## Angular Resolution

An astronomer wants to determine whether or not he or she can photograph Castor and Pollux at the same time on a 5 x 8 inch plate using a lens system with a 1200 mm focal length. If the two stars are approximately 5 degrees apart, will it be possible to

56. ## calculus

The radius of a cone increases at the rate of 0.3 inches per minute, but the volume remains constant. At what rate does the height of the cone change when the radius Is 4 inches and the height is 15 inches?

57. ## science

Why do you have to filter the Ca(OH)2 solution before loading it into the burette?

3m=12

59. ## chemistry

concentrated sulfuric acid is typically 18.1 M H2 SO4. Calculate the volume in mL of concentrated sulfuric acid needed to prepare 125 mL of a 0.100 M H2SO 4 solution

60. ## algebra

find the vertex of 400-16tsquared

if the sides of a cube are measured with an error of 2% use differentials to estimate the relative error in the volume df= 3x^2 * dx df= 3x^2 * 1/50 df= 3/50*x^2 is this right?

62. ## statistics

What is the probability that 10 of 100 apples will be < 130 g? mean=173 std deviation=34?

63. ## algebra

what ca be concluded from the box below x+3>7 then x+3-3>7-3 a:x-3 b:x+3-3>7-3 c:

64. ## Social Stuides

Which problems in the 1890s led farmers to take political action?

65. ## algebra

if x is a x real number what is the sum of x and the opposite of x a-1 b-0 c:-x d- x+1/x

66. ## Math

What is the difference between Descriptive and casual studies?

67. ## life orientation

in 10-15 lines critically discuss 5 ways in which the human or environmental problem impact on the community

68. ## algebra 2

a two-digit counting number has a value that is 13 greater than 3 times the sum of the digits. If the units digit is 1 greater than the tens digit, what is the number

69. ## Pre Calculus

Use a calculator to evaluate csc 3ð/14 A. 1.604 B. 1.279 C. 47.686 D. 42.314 E. .739

70. ## Math

Why 1/2 of 1 is 1/2, what is half of 2,3, and 4/

71. ## Math

Let Alpha and Beta be the zeros of the cubic polynomial x^3 + ax^2 + bx + c satisfying the relation Alpha * Beta = 0. Prove that : c^2 + ac + b + 1 = 0. Please work the complete solution.

72. ## World Geography

Cultures often develop along with science and ____________.

73. ## Chemistry

how many joules and calories are produced from the reaction CaCl2+H2O=HCl+CaOH

74. ## Math

An equilateral triangle ABC has AB=20√3. P is a point placed in triangle ABC and D,E and F are the foot of the perpendiculars from P to AB, BC and AC, respectively. If PD=9 and PE=10, what is the value of the length of PF? Please work the complete

75. ## calculus

the telephone company is planning to introduce two new types of executive communications systems that it hopes to sell to its largest commercial customers. It is estimated that if the first type of system is priced at x hundred dollars per system and the

76. ## Shakespeare

What are Shakespeare beliefs, attitude, time, heritage, and experiments.

77. ## life orientation

in 10-15 lines critically discuss 5 ways in which Hiv/Aids impact on the community

78. ## Macroeconomic 668

If the mortgage rate rises from 5% to 10% yet the appreciation of houses that consumers can buy rises from 2% to 9% would you be more likely or less likely to buy a house as an investor?

79. ## Chemistry

3. Using Bohr’s model of the atom, calculate the energy required to move an electron from a ground state of n = 2 to an excited state of n = 3. Express your answer in both J/photon and kJ/mol.

80. ## Math

Let p and q be the roots of the polynomial mx^2 + x(2 - m) + 3. Let m1 and m2 be two values of m satisfying p/q + q/p = 2/3. Determine numerical value of m1/(m2)^2 + m2/(m1)^2. Please work the complete solution.

81. ## Statistics

The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is mound-shaped and symmetric with a mean of 24.6 mpg and a standard deviation of 11.2 mpg. If 30 such cars are tested, what is the probability the average

82. ## matemáticas

Why did the Boy sheep plunge off a cliff while chasing the fiel sheep?

83. ## Physics

Find the potential difference across each resistor in the figure below. (R1 = 5.24 , R2 = 3.85 , R3 = 3.30 , R4 = 2.00 ) VR1 = V VR2 = V VR3 = V VR4 = V |----|------| | | | ___ ___ ___ 12V 3V 18V - - - | | | | | | | | | R1 R2 R4 | | | |_____|_R3__|

84. ## math

slope = -2, passing through (0, -3) equations for each line point-slope, slope-intercept form

85. ## Physics

When UV light of wavelength 295nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.50eV. What is the work function of the metal? W0 in eV

86. ## Physics

Photons of energy 12eV are incident on a metal. It is found that current flows from the metal until a stopping potential of 8.0V is applied. What would happen if the wavelength of the incident photons was tripled? Would the energy be 4eV,so 12/3=4, and

87. ## English

I need help understanding this topic question - "The banality of horror is what is truly frightening".

88. ## math

Submit the two equations that represent the cost of going to the gym based on if we join or do not join. Identify the number of times a person would go and have the costs of the 2 plans be the same.

89. ## Physics

A gamma-ray photon produces an electron-positron pair, each with a kinetic energy of 275keV . What was the energy of the photon? E=in MeV What was the wavelength of the photon? wavelength in m Please help thank you!

90. ## math

Submit the two equations that represent the cost of going to the gym based on if we join or do not join. Identify the number of times a person would go and have the costs of the 2 plans be the same.

91. ## math

Submit the two equations that represent the cost of going to the gym based on if we join or do not join. Identify the number of times a person would go and have the costs of the 2 plans be the same.

92. ## Life Orientation

5 ways in which the human or environmental problem impact on the environment about HIV/AIDS

93. ## statistics

The daily sales of a retail store are normally distributed with a standard deviation of $500. If the probability that sales will be less than$10,000 in any one day is 40%, what are the mean daily sales?

94. ## Life Orientation

5 ways in which the human or environmental problem impact on the environment about HIV/AIDS

95. ## math

write five million two hundred eighty in standard notation

96. ## physics

A uniform rod of mass M = 326 kg is in the shape of a semicircle of radius R = 6 m. Calculate the magnitude of the force on a point of mass m = 74 kg placed at the center of the semicircle, as shown in the figure.

97. ## physics

A satellite is in circular orbit around the Earth at a distance of 4.74RE with a speed of 3.63 km/s. With what speed would the satellite hit the Earth's surface if somehow it suddenly stopped and fell to Earth? Ignore air resistance.

98. ## history

which president raises soft money in order to help democrat candidates in the 1996 election

99. ## Midpoint Help / Math

M(-4,-2) is the midpoint of RS. If S has coordinates (-2,5), find the coordinates of R.

100. ## physics

A spy satellite was launched into a circular orbit with a height of 599 km above the surface of the Earth. Determine its orbital speed and period. (The mass of the Earth is 5.97 1024 kg, and the radius of the Earth is 6370 km.)

101. ## algebra

frank can wash the car in 2/3 the time his younger brother,joe,can wash the car.they worked together and washed the car in 40 minutes.how long would it have taken each boy working separately?

102. ## physics

The distances from the Sun at perihelion and aphelion for Pluto are 4.410 109 km and 7.360 109 km, respectively. What is the ratio of Pluto's orbital speed around the Sun at perihelion to that at aphelion?

103. ## physics

A satellite is placed between the Earth and the Moon, along a straight line that connects their centers of mass. The satellite has an orbital period around the Earth that is the same as that of the Moon, 27.3 days. How far away from the Earth should this

104. ## algebra1

the school bought a new copy machine which makes 20 copies per minute.the old machine makes 12 copies per minute.francine needs 100 copies,so she uses both machines.how long will it take to have the copies

105. ## life orientation

Describe the life style disease or behavior and explain 5 factors that contribute to cancer

106. ## HCS/335

what is the historical and current impact of the biomedical issue?

107. ## math

Dirk has two pet mice. Among other things, he feeds them cup of dry pellets every week. How much dry food will he need for a year?

108. ## chemistry

What is the final temperature of 1370 g of water, originally at 20.9°C, if it absorbs 47.6 kJ of heat?

109. ## math

hermione puts $1000 into an account on january 1, 2008. if the account is compounded continuously at a rate of 7.9%, in what month of what year will the account reach$100,000? Is the correct answer January,2069?

110. ## maths

the frst term of AP is 4 and the last term is 79.given that the sum of the AP is 996, find the number of terms and the commmon difference.

111. ## 5th grade math (word problems)

Problem: A receipe for 4 dozen cookies requires 1 1/2 cups of flour. How much flour is needed for 1 dozen? work: 4 divided by 1 1/2 = 4/1 x 3/2 = 4/1 x 2/3 = 8/3 cups of flour Can you explain why i don't need to change 4 dozen to 48 and then divide by 1

112. ## HCS/335

the future of embryo

113. ## Math

Write 70,633.29 two other ways.

114. ## Life orientation

8 ways in which the flooding impacts within the community

You work with the following system: 2X(g) Y(g) At, equilibrium, [Y]=3[X]. If K=10, calculate the [Y] at equilibrium.

116. ## math

what is e = mc square

117. ## Chemistry

What is the ph at the equivalence point for a titration of 250 mL of 0.17M piperidine with 0.17 M nitric acid. (piperidine: Kb = 1.3 x 10-3)

118. ## Math

Tom has a bag filled with 10 green balls, 5 red balls and 5 blue balls, what part on toms bag has green balls

119. ## Algebra 2

a) The average height of sunflowers in a field is 64 inches with a standard deviation of 3.5 inches. Describe a normal curve for the distribution, including the values on the horizontal axis at one, two, and three standard deviations from the mean. b) If

120. ## english

which words should be caoitalized in this sentence st. patricks day is on march 17 every day.

121. ## math

A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this

122. ## physicis

A 8.30 kg object with a speed of 34.0 m/s strikes a steel plate at an angle of 45.0 degrees with the normal to the plate, and rebounds at the same speed and angle on the other side of the normal. What is the change (in magnitude only) of the linear

123. ## L o

Provide recommendationson how to address the topic of water pollution

124. ## physicis

A pellet gun fires ten 3.00 g pellets per second with a speed of 840 m/s. The pellets are stopped by a rigid wall. What is the average force (in newtons) exerted by the pellets on the wall?

125. ## Life orientation

Community organization that are involved in supporting or giving redress homelessness

126. ## math

An alcohol solution consists of 6 gallons of pure water and x gallons of alcohol, x > 0. Let f(x) be the ratio of the volume of alcohol to the total volume of liquid. [Note that f(x) is the concentration of the alcohol in the solution.] (a) Find a possible

127. ## algebra 1

What is b^2-b/2

128. ## LIFE SCIENCE(G12)

state two effects of gibberellin on seed germination

129. ## Ife orientation

10 ways in which the environmental health hazard can impact negatively on one's health

130. ## Social Stuides

What were the Wild West myths and realities of Western life?

131. ## government

What is best answer below with regard to the quantity of end items procured with a given procurement appropriation, the Secretary of Defense (1). Can authorize any quantity of items to be procured. (2). Cannot exceed the quantity specified in the defense

132. ## Science-Greenhouse Effect

Jaws of the Water ACT TWO At rise we see DAD, TINA, and MARK rushing in and out of the living room. Each enters carrying important items—such as sleeping bags, rain gear, and gallons of water—sets them down, and exits. All three come in together, and

134. ## physics

A particle moves through an xyz coordinate system while a force acts on it. When the particle has the position vector vector r = (2.00 m)ihat - (3.00 m)jhat + (2.00 m)khat, the force is vector F = Fxihat + (7.00 N)jhat - (5.30 N)khat and the corresponding

135. ## algebra 1

Solve rational equation 1. 2/b-2=b/b^2-3b+2 + b/2b-2

136. ## Numbers

How many positive integers less than or equal to 1000 are common multiples of the three numbers 8,100, and 40

137. ## chemistry

How would you figure: How much energy, in kJ, is absorbed by 23.8 g of acetone when it evaporates if its molar heat of vaporization is 32.0 kJ/mol? Acetone formula is C3H6O

138. ## math

kate cut a pizza into fourths. karl cut a pizza of the same size into sixth. After they each ate some pizza, they had the same fraction of pizzas left. What fraction of each pizza was left?

139. ## Physics

Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.

140. ## Trigonometry

If sinx−cosx=1/2 then cot^2 (2x)=a/ b, where a and b are coprime positive integers. What is the value of a+b ?

141. ## Afrikaans

We will do a oral about intstrunent in Afrikaans,help!!,Icant write in Afrikaans.

142. ## Trigonometry

Given that cos(3x)=acos^x−bcosx is a trigonometric identity, what is the value of a+b ?

143. ## Eco103

Given The demand function of a product q=f (a)= 3600-15p find the maximizes total revenue and quanty sold

144. ## Trigonometry

Given that cos(3x)=acos^3(x)−bcos(x) is a trigonometric identity, what is the value of a+b

145. ## chemistry

When totally digested by acid and rocessed into a sample of one liter solution volume for spectroscopy, a 3.21 gram sample of alloy yeilded an absorbance of 0.288. Calculate the percent by wieght of iron in the alloy sample

146. ## Life Orientation

Suggest 5 recommendations on how to address the environmental problems within your community or any other community within South Africa and globally

147. ## Medical Billing and Coding

1. You're an outpatient coder in Dr. Smith's office. When you code procedures, you're probably using _______ codes. A. ICD-10-CM B. ICD-9-CM C. HCPCS D. CPT ANSWER 2. You're a coder who's reviewing the record of a 62-year-old woman who was admitted to the

148. ## Social Stuides

What were the Wild West myths of the West?

149. ## Math

A rectangular solid has a volume of 40 cubic centimeters. If the dimensions are all reduced to 1/2 their original size, what will be the new volume of the rectangular solid?

151. ## social studies

information on checks and balances for president, congress, supreme court\ examples for each

152. ## environment

Name 2 institution or community organisation that are involved in surporting or giving redress to the disaster of air pollution and explain how this organisation are involved in providing a safe and healthy invironment

153. ## Chemistry

The question is: What is the molarity of the copper (II) chloride solution your teacher provided? Show calculations. Obtain the true molarity of the copper (II) chloride solution and calculate percent error. I have done this so far trying to answer the

154. ## Life orientation

Name 2 institution or community organisation that are involved in surporting or giving redress to the disaster of air pollution and explain how this organisation are involved in providing a safe and healthy invironment

155. ## Physics H

What is the speed of light moving through a medium of index of refraction 2.45?

242. ## Math

Suppose you have 36 yards of fencing to build a fence around a rectangular backyard garden. The width is 18 yards less than twice the length. Find the length and width of this garden.

243. ## physics

In the dangerous “sport” of bungee-jumping, a daring student jumps from a balloon with a specially designed elastic cord attached to his ankles. The unstretched length of the cord is 25.0 m, the student weighs 700 N, and the balloon is 36.0 m above the

244. ## math

order the fractions 1/3 2/5 2/9 1/3 and 4/1 from least to greatest

245. ## Physics

21. The Mariana trench is located in the Pacific Ocean at a depth of about 10300 m below the surface of the water. The density of seawater is 1025 kg/m3. If an underwater vehicle were to explore such a depth, what force would the water exert on the

246. ## maths

express a^8b^6c^7 whole root 4 in the simplest form??

247. ## Math Geo

Estimate the radius of a circle with the circumference of 272.2 inches. Help me with the steps please?

248. ## physics

Kelli weighs 392 N, and she is sitting on on a playground swing that hangs 0.4 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.1 m above the ground. If Kelli moves through the lowest point at 1.5 m/s, how much work was

249. ## science

If solid iodine sublimes to produce iodine gas:write down the equation for the reaction

250. ## Life orientation

Give me 3 institutions or community organizations that are involved in giving redress to floods problems

251. ## physics

Kelli weighs 392 N, and she is sitting on on a playground swing that hangs 0.4 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.1 m above the ground. If Kelli moves through the lowest point at 1.5 m/s, how much work was

252. ## maths

what is pure surd of 3/4root32?

253. ## Algebra Math

The function given by f (x) = 9/5 x + 32 converts x degrees Celsius to an equivalent temperature in degrees Fahrenheit. (a) Is f a one-to-one function? Why or why not? (b) Find f -1(x) and interpret what it calculates

254. ## Science question

A battery is not used in flashlight microwave portable radio cell phone I think microwave?

255. ## Math

What are 2 prime numbers between 100-199 such that the tens digit is a prime number, the ones digit is a prime number, and the tens and ones digit taken together are 2 digit prime number.

256. ## social studies

With regard to the quantity of end items procured with a given procurement appropriation, the Secretary of Defense: Can authorize any quantity of items to be procured. Cannot exceed the quantity specified in the defense appropriation act. Can acquire as

257. ## chemistry

which melts at a low temp in a solid nonelectrolyte what type of solid is it

258. ## math

Let x-2 be a factor of f(x)=x^3-x^2+ax+b. Find the relationship between a and b

259. ## Economics

b) If you were the head of the Japanese Central Bank, how would you respond if your goal was to keep the interest rates at the original equilibrium level (before the increase in the taxes) in the money market?

260. ## Chemistry

What is the pH of a solution that is 0.0100 M in HCN and 0.0200 M in NaCN?

261. ## math

a rectangular garden with an area of 2112 square feet is to be located next to a barn with fencing on three sides and the barn acting as the fourth side.Write a function that gives the length of fencing needed if the length of the side parallel to the barn

262. ## To Sweetkay

DO NOT post entire tests or exams here. That promotes cheating. =(

263. ## geometry

Tamika draws a line that would cut a 8. square in half. She says she makes 2 smaller squares. Is Tamika Correct?

264. ## books

I need to write a Year 9 English Unit on the novel,"Strange Objects" by Gary Crew. I can't seem to find any resources to assist me. Can you help direct me to finding some???? thanks

265. ## geometry

Blake draws a diagonal to cut a trapezoid. He says he is left with two triangles. Is Blake correct?

266. ## chemistry

how many liters are occupied by 0.908 mol of nitrogen at 108 degrees C and 0.858 atm pressure?

267. ## math

a map has the scale of 1 inch =80 miles.what is the actual distance,in miles,between two towns that are 4 1/2 inches apart on the map?

268. ## social science

A paragraph explaning how the swahili langauge came into being

269. ## us history

What was life like for nurses during the civil war and what incidents happend

estimate cube root of 25 by linear approximation f(x+delta(x))= f(x) + (df(x)/x) * deltax 3 + 1/3x^(-2/3) * -2 3 - 2/3x^(-2/3) 3 - (2/3* ((cube root(9))) is this right? thanks