1. physics

An object with mass 3.0 kg is attached to a spring with spring stiffness constant k = 300 N/m and is executing simple harmonic motion. When the object is 0.020 m from its equilibrium position, it is moving with a speed of 0.55 m/s. (a) Calculate the

2. chemistry

Write the standard cell notation for a galvanic cell with a silver cathode and a zinc anode.

3. social studies

what has stood for almost 2500 years on a hill called acropolis and the people of greece built me to honor the godess athena

4. AP CHEM

potassium tetrabromo(ortho-phenanthroline)- cobaltate(III)

5. Precalculus

From a rectangular piece of cardboard having dimensions a × b, where a = 40 inches and b = 70 inches, an open box is to be made by cutting out an identical square of area x2 from each corner and turning up the sides (see the figure). Express the volume V

6. Finance

7. Describe at least two factors of an investment that you would want to consider before putting money into that specific investment. (2-4 sentences. 2.0 points)

7. PHYSICS

A wet bar of soap slides freely down a ramp 12.0 m long, inclined at 74.0 degrees. How long (in seconds) does it take to reach the bottom? (Neglect friction.)

8. maths

in an A.p 6th term is half the 4th term and the 3rd term is 15.How many terms are needed to give a sum that 16 equal to 66.

9. Chemistry

Pentane gas (C5H12) combusts with oxygen gas (O2) to form water (H2O) and carbon dioxide (CO2). Write a balanced chemical equation for this reaction and explain the scientific principle (statement) that requires the balancing of an equation to make it

10. Calculus

Could someone help me setup an equation for this equation? --------------------------------- A city bus system carries 4000 passengers a day throughout a large city. The cost to ride the bus is \$1.50/person. The owner realizes that 100 fewer people would

11. Physics

Find the acceleration produced by a force of 1650N against a friction force of 500N while pushing on a mass of 6.50kg.

12. Physics

A 75.0g bullet is fired at a muzzle velocity of 476 m/s from a gun with a mass of 4.75kg and a barrel length of 60.0cm. a. How long is the bullet in the barrel? b. What is the force of the bullet while it is in the barrel? c. Find the impulse given to the

13. physics

A mass m at the end of a spring vibrates with a frequency of 0.87 Hz. When an additional 602 g mass is added to m, the frequency is 0.59 Hz. What is the value of m?

14. accounting

Classify each of the following items as owner's drawing, revenue, or expense. (a) Advertising expense (b) Commission revenue (c) Insurance expense (d) Salaries Expense (e) Bergman, Drawing (f) Rent revenue (g) Utilities expense

15. tax

In 2011, the Chens' pleasure boat was severely damaged by a hurricane in an area that was declared a federal disaster area. They had AGI of \$110,000 in 2011. The following information relates to the craft: cost basis \$95000 FMV before casualty \$145000 FMV

16. Math

Determine whether Rolle's Theorem can be applied to f on the closed interval [a,b]. (Select all that apply.) f (x) = sin(x), [0, 2π] If Rolle's Theorem can be applied, find all values of c in the open interval (a, b) such that f '(c) = 0. (Enter your

17. tax

At the beginning of 2011, Melissa was permanently transferred from her office in New York City to New Jersey. Her office in NYC is 15 miles from her old NY home. For Melissa to meet the distance test for qualifying moving expense deductions, how many miles

18. Accounting

Blane Company has the following data: Total Sales 800,000, Total Variable Costs 300,000, Fixed Costs 200,000, Units Sold 50,000, What will operating income be if units sold double to 100,000 units?

19. physics

Josh starts his sled at the top of a 2.0 m-high hill that has a constant slope of 25 degrees . After reaching the bottom, he slides across a horizontal patch of snow. The hill is frictionless, but the coefficient of kinetic friction between his sled and

20. Geometry

Area of trapezoid is 80 square units, height is 8 units. What is the lenght of median ?

21. voc 3

She worked really hard on the project. The suffix -ed in the italicized word in the sentence above illustrates that the work happened in the past tense.

22. AP CHEM

formula for bipyridyl

23. physics

Red light (n = 1.520) and violet light (n = 1.538) traveling in air are incident on a slab of crown glass. Both colors enter the glass at the same angle of refraction. The red light has an angle of incidence of 26.50°. What is the angle of incidence of

24. physics

A wooden box weighing 271 N is pushed across the floor by a workman who exerts a horizontal force of 144 N. If the force of friction between the box and the floor is 28 N, what is the acceleration (in meters/second^2) of the box?

25. geometry

the endpoints of AB are A(9,4) and B(5,-4) the endpoints of its image after a dilation are A1(6,3) and B1(3,-3) explain how to find the scale factor. Is there someone that can help me with this problem and explain foe me?

26. chemistry

Think about the various processes that take place in the body or in the natural environment and come up with a list of at least fivethat you believe represent redox reactions. You don't need to include formulas. Jut substances names or provide a

27. chemistry

If one electrode in a galvanic cell is made of zinc (Zn) and one is made of silver (Ag), which metal would be the cathode and which would be the anode? Explain your answer.

28. Physics

A sports car accelerates from a standing start to 85mi/h in 4.61s. a. Find its acceleration in feet per second squared. b. How many feet does it travel in that time?

29. Physics

A cannon at ground level launches a cannon ball at an angle of 30 degrees with a velocity of 28.3m/s. How far will the cannon ball travel?

30. Science

Well water in karst areas is often very hard. What is the role of chemical weathering in producing hard water in aquifers?

31. Physics

A cyclist and her bicycle have a combined mass of 75.0kg. If the frictional force acting against the motion of the bicycle is -23.5N, what force must the cyclist apply to maintain a constant velocity?

32. math

Lena is tiling a square ﬂoor with each side 3 metres long. Tiles cost \$45 per square metre. Which calculation gives the total cost of tiling the ﬂoor (in dollars)?

33. Chemistry

A student titrated 1.852 g of a mixture containing potassium hydrogen phthalate, KHP....? A student titrated 1.852 g of a mixture containing potassium hydrogen phthalate, KHP, with 0.163 M NaOH solution. She recorded an initial buret reading of 0.84 mL and

34. Math

A rectangular prism has a length of 100 cm, a height of 10 cm and a width of 5 cm. What is the volume of the rectangular prism? A. 3100 square centimeters B. 1550 square centimeters C. 5000 square centimeters D. 1200 square centimeters 2. A cylinder has a

35. statistics

The average salary for graduates entering the actuarial field is \$40,000. If the salaries are normally distributed with a standard deviation of \$5000 (σ = 5000), find the probability that a graduate will have a salary over \$45,000: P(X > 45,000).

36. Math

\$500 was deposited in January @ 5% interest. \$15 per week deposited all year long. How much money was in the account at the end of the year?

37. payroll accounting

Julie Whiteweiler made \$930 this week. Only social security (fully taxable) and federal income taxes attach to her pay. Julie contributes \$100 each week to her company's 401(k) plan and has \$25 put into her health savings account (nonqualified) each week.

38. math

the volume of a cone is 48 pi cubic units. If its dimensions are reduced to one half their original length, what would its new volume be?

39. applied chemistry

A 50.0mL volume of AgNO3, solution contains 0.0285 mol AgNO3 (SILVER NITRATE). What is the molarity of the solution?

ok, i don't have answer to these questions! #8: The interaction of air, water, and _________ causes weather. #9: Violent storms generally form where? #10:clouds form as warm air rises, expands, cools, and becomes saturated, and then _______________

41. Geometry

Find the perimeter of the square. Length is 6.66 yd

42. phsyic

You are camping with two friends, Joe and Karl. Since all three of you like your privacy, you don't pitch your tents close together. Joe's tent is 26.5 from yours, in the direction 21.0 north of east. Karl's tent is 28.5 from yours, in the direction 40.5

43. social studies

who is Elizabeth Cady Stanton??? who is Sojourner Truth???? who is Henry David Thoreau????

ok, i don't have answer to these questions! #8: The interaction of air, water, and _________ causes weather. #9: Violent storms generally form where? #10:clouds form as warm air rises, expands, cools, and becomes saturated, and then _______________

45. math

If I have a \$1000 charge on a credit card charging 1% interest using the adjusted balance method, minimum payment due is \$40. How much will you save in interest charges in june by paying \$80 instead?

46. tax

Under a court-ordered decree of separate maintenance executed in 2011, Rebecca is required to pay her ex-husband, Carl, \$5,000 a month until their youngest son turns age 18. At that time, the required payments are reduced to \$2,500 per month. How much of

47. American Literature

What is significant about the novel's title, My Antonia?

48. Accounting

Paid advertising bill for June, \$1,200.

49. tax

The educator's expense deduction is taken: A. on Form 2106. B. on Schedule C. C. above the line on the Form 1040. D. on the educator's expense form. it it C

50. math

Tiny is ordering a pizza and cant decide between a round pizza with a diameter of 4 inches or a rectangular pizza that is 12 inches by 14 inches. The round pizza is 9.50 and the rectangular pizza is 10.00. Which is larger? How much larger is it? Which

51. Finance

Suppose your bank account will be worth \$4,200.00 in one year. The interest rate (discount rate) that the bank pays is 5%. What is the present value of your bank account today?

52. voc 5

A prefix is added to the beginning of a word to alter its meaning.

53. Geometry

find the perimeter of the trapezoid. L1=9.65yd, L2=9.25yd, L3=10.12yd, L4=6.20yd

54. Earth Science

Which of the following statements best describes the recharge zone of an aquifer? Thank you! A) anyplace that the water table of the aquifer meets the surface B) the boundary between the aquifer and the permeable rock above it C) an area above an aquifer

55. Science

Well water in karst areas is often very hard. What is the role of chemical weathering in producing hard water in aquifers?

56. Chemistry

Calulate the degree of ionization for NH3(aq) in 1.0 M solution, Kb = 3.236E-4. I've seen degree ionization for acids and not bases. Do I need to find the Ka [H+] value of the base to determine the degree of ionization?

57. physics

A 8.0 kg object, moving with a constant velocity of 8.0 m/s, is acted upon by a force of 14 N in the direction of the motion for 6.0 s. What is the velocity (in meters/second) of the object at the end of this time?

58. government

What is the difference between Social Security Disability Insurance(SSDI) and Supplemental Security Income(SSI).

59. physics

A 0.180 kg baseball, traveling 32.0 m/s, strikes the catcher's mitt, which recoils 13.0 cm in bringing the ball to rest. What was the average force (in newtons) applied by the ball to the mitt?

60. Mathematics

A motorist do does the first part of his journey at an average speed of 54km/h. Then he increases the speed to 60km/h for the rest of the journey. If he travels 225km in 4 hours, what is the distance traveled for the rest of his journey? show clear steps.

61. English

Here is the last part I need to rephrase. I need to simplify the description in two, three sentences. Thank you! 1) Sissy is described as so dark-eyed and dark-haired, that she seems to receive a deeper and more lustrous colour from the sun, when it shines

62. Financial Management

Wheel has just paid a dividend of \$2.50 per share. The dividends are expected to grow at a constant rate of six percent per year forever. If the stock is currently selling for \$50 per share with a 10% flotation cost, what is the cost of new equity for the

63. Chemistry

What is the concentration of the SCN- ion in the stock solution of 2.00 x 10-3 M NaSCN in 0.10M HNO3?

64. English

1. Mark an O on the picture you like, and mark an X on the picture you don't like. 2. Mark O on the picture you like, and mark X on the picture you don't like. 3. Check a circle on the picture you like, and check an X on the picture you don't like. 4.

65. algebra

You earned the following scores on five science tests: 75, 82, 90,84, and 71. You want to have an average score of at least 80 after you take the sixth test. a. Write and solve an inequality to find the possible schores that you can earn on your sixth test

66. Physics

A boat has a velocity of 27.5 m/s [S30W]. 34 s later it had a velocity of 24.0 m/s [E66S]. What was its average acceleration?

67. English

Which of the following sentences is punctuated correctly? A. Melissa said that she would never go on a cruise B. Justin asked, "Will tickets be available online"? C. "Of course," Mr. Howard replied "You can buy tickets and rent a car online." I think it is

68. Chemistry

If 4.00 g of metal is plated in the voltaic cell (which contains Ag and Ni with the total potential of 2.98 V) , how much metal is plated in the electrolytic cell (contains Ag and Zn with the total of 1.98 V)? I have no idea how to do this! Help?

A restaurant offers a 13% discount on chicken wings on Mondays. If Travis eats \$7.95 worth of chicken wings on Friday, how much would those wings cost on Monday??? PLEASE SHOW ALL WORK THANKS!!!!! :)

70. Math

The height of a ball t seconds after it is thrown upward from a height of 6 feet and with an initial velocity of 80 feet per second is f (t) = -16t^2 + 80t + 6. According to Rolle's Theorem, what must be the velocity at some time in the interval (2, 3)?

71. maths

the sum of the 4th and 6th terms of an A.P is 42. the sum of the 3rd and 9th terms of the progression is 52. find the first term, the common difference and the sum of the first ten terms of the progression.

72. kuwait

You are camping with two friends, Joe and Karl. Since all three of you like your privacy, you don't pitch your tents close together. Joe's tent is 19.5 from yours, in the direction 21.5 north of east. Karl's tent is 41.0 from yours, in the direction 41.0

73. Physics

An F-18 with a weight of 22500 lb lands on a carrier with a speed of 120mph. If the run-out of the arresting cable is 160ft, what is the plane's acceleration in feet per second squared?

74. Physics

Find the mass of a motorcycle that weighs 1850N.

75. Geography

How does the physical geography influence the Kite Runner

76. Physics

Which object has a greater momentum, a stationary tractor-trailer or a tossed tennis ball? Explain your answer please.

77. math

8 pens cost \$4 more than 8 pencils. Harry paid \$8 for 4 pens and 4 pencils. What was the cost of a pencil?

78. physics

a 25000000 gr rocket is propelled from rest by an engine that produces a 312500 kgm/s2 for 1.375s A) What is the sleds acceleration? B) What is the velocity after 1.375s?

79. English

Writeacher, I really need your help to rephrase just this part. Thank you very much in advance! 1) Mr. Gradgrind turns his attention to (picks on?) Bitzer, "perhaps because he chanced to sit in the same ray of sunlight which, darting in at one of the bare

80. Physics

Electrical conductivity in liquid solutions depends on the presence of free 1) neutrons 2) protons 3) molecules 4) ions explain please I really don't understand this question

81. Physics

Explain how a tennis racket can apply an impulse to the tennis ball.

82. Physics

Provide an example of an elastic collision and an inelastic collision.

83. Chemistry

Determine the molarity of a sodium hydroxide solution? if 37.34 mL of it are required to neutralize 1.922 g of citric acid. balanced equation- 3NaOH(aq)+H3C6H5O7-->3H2O(l)+NaC6H5O7(aq… ***Plesae show steps.

84. Math

x+7+(x-2)+2x+5+3x

85. statistics

between z=1.45 and z=2.12 greater than z =1.75 or less than z= -0.90 exactly equal to z= 1.50 if the equation resulted from regression analysis involving a set of ten (x,y) data point. what is the value of y when x = 3

86. college algebra

3 = 4 ------------- x-8 x=2 how do you solve this

87. Math

Use a radius of 50 and 3 for pi to estimate the area. Then use a radius of 40 and 3 for pi to estimate the area. Is your answer reasonable? Why?

88. MTED402

THERE WERE 390 ADULT AND CHILDREN TICKETS THAT WERE SOLD AT A PLAY. THE THEATRE SOLD 2.25 TIMES MORE ADULT TICKETS THEN CHILDREN TICKETS. IF ADULT TICKETS COST \$8 AND CHILD TICKETS COST \$3. WHAT WAS THE TOTAL REVENUE FOR THE AMOUNT OF TICKETS SOLD?

89. math

Jamal buys 59 stickers. Stickers come in packs of 5 or 8. How many packs of 5 stickers does Jamal buy? 8 stickers?

90. math

what is the probability of a correct answer if 54 are correct out of 180?

91. math

write two situations that would use the numerical expression 27/9

92. Chemistry

How much heat is associated with the burning of 2.27 g of methane in the following unbalanced reaction: CH4(g) + O2(g) →CO2(g) + H2O(g)?

93. PHYSICS

Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 28.0 in a direction 60.0 west of north. Jane walks 11.0 in a direction 30.0 south of west. They then stop

94. Science

if the chemical equation is CaCO3(s) + 2HCl(aq) > CaCl2(aq) + H2O(l) +CO2(g) and represents the reaction of an antacid, CaCO3, with a acid,HCl. why might someone using this antacid experience discomfort due to gas pains?

95. Maths

A moment ago, 80% of the children in a hall were girls. 48 girls and 2 boys left the hall. The remaining children were then told to form groups of 9. In each group, there were 2 boys. How many children were there in the hall first?

96. art

I need help for acrylic paintings

97. Thesis statement

I need to write my own classification and division Essay of 200 words about the versions of English spoken using mother tongue as a sample. I'm having Trouble developing a good thesis statement. Please help!

98. Latin

How do u change a cardinal number in to ordinal number.

99. English Grammar: Verbs

What are the verbs in these sentences? I just want to check my work. Gasping, Matty called for his gift to come. There was no sense of how to direct it. He became aware, suddenly, that he had been chosen for this. Thanks in advance!

100. prealgerbra

What is the answer to x/8-12=10 we need to find x i don't get how to do it need it quickly please help me

101. Algebra

Help please (x^3 + 3x^2 - 2x+7)/(x+1)=11 I don't how how to solve this at all-the answer should be 11 but I don't have a clue how to get it-please show me this one so I can hopefully do my homeowrk-we did this in class today but I don't understand it

102. math

The odds against Pat winning the election are 5:9. With these odds, what is the probability that Pat will win the election?

103. physics

When you want to pull downward to lift something, the main advantage of passing a rope upward and through a single pulley,rather than just up over the branch of a tree ,is that the pulley?

104. math

the probability of an event is 7/10. Find the odds in favor of this event occurring.

105. math

at camp, miriam learned how to use a pottery wheel. she can make 3 bowls in 2 hours. how long will it take her to make a set of 12 bowls?

106. math

bob is making a design that is 5 inches by 8 inches.how many 1 inch square tiles dose he need to fill the area of the design?

107. Mcmaster

A pendulum consists of an object of mass 2.26 kg that hangs at the end of a massless bar, a distance 2.02 m from the pivot point. Calculate the magnitude of the torque due to gravity about the pivot point if the bar makes an angle of 54° with the

108. calculus

find the domain of the function a) f(x,y) = e^(-xy) b) h,(u,v)= √(4-u^2 - v^2)

109. physics

regards bungee jumping How accurately must the weight of the jumper be known?

110. Calculus

Could someone explain this question please. Suppose the population (in thousands of a certain species of insect after t months is described by the function p(t)=4t+ (100t)/(t^2+400) + 500. Determine the maximum population in the first three months.

111. Algebra

How far does a rider travel in one turn of each Ferris wheel? This is the first chart Measure Ferris Wheel Diameter (ft) 250 Height, including base 264 # of passenger cars 36 #of people per car 60 This is the second chart Measure Cosmo Clock Diameter (ft)

112. trig

if sin a=4/5 and is quadrant 2 and sin b= 8/17 and is in quadrant 1, find cos (a-b)

113. trig.

A ladder 20 feet long leans against the side of a house. Find the height from the top of the ladder to the ground if the angle if the angle of elevation of the ladder is 80°

114. calculus

Find dz/dy and dz/dx Let z = ∫e^(sin(t))dt from x to y a = x b = y I tried thinking about it like a chain rule but even then i'm a little unsure. I know dz/dt = e^(sin(t)). Can you please point me in the right direction if i'm supposed to use the chain

115. Math

\$500 was deposited into an account at the first of the year. Interest earned was 5%. An additional \$15 was deposited each week. How much was in the account at the end of the year?

116. trig.

A ladder 20 feet long leans against the side of a house. Find the height from the top of the ladder to the ground if the angle if the angle of elevation of the ladder is 80°

117. English

I need to write a poem in the style of an American romantic poet. I don't really understand how to incorporate that into a poem. My poem is supposed to be about nature with the five senses. Can someone please explain to me how i create an american romantic

118. grammar6786

choose the correct answer: Q1. Our teacher, along with several others, (is, are) judging the essays. i put (is) Q2. Which of the scouts is the one who (has, have) the map? i put (has) Q3. The orchestra will play a new medley of songs that (appeals, appeal)

119. math

Will an object 52" x 9" fit into a space 49" x 41"?

120. physics

Two sheets of polaroid are arranged with their polarisation axes at angles of 0 and 90 degrees relative to the horizontal. Randomly polarized light is shone so that it passes through both filters. What fraction of the light is transmitted? A further, third

121. physics

The figure is taken from a paper (Am J Sports Med 2004 32: 477) on injuries to the anterior cruciate ligament due to forces applied by the patella tendon. Take a particular case where the attachment force on the tibia is 5610N when the leg is oriented with

122. ELA

Which of the following is the best way to rewrite this? F.Sometimes the Coffins helped disguise themselves by putting elegant clothing on the travelers. G.The Coffins sometimes helped themselves by disguising the travelers in elegant clothing. H.Sometimes

123. math

The last time you ordered paper you paid \$5.00 per ream. The current price is \$4.70 per ream. What is the percent of decrease in price?

124. mechanics

Two 20kg weights are hung from light strings that pass over frictionless pulleys. The ends of the strings are connected to a small, light spring balance, S, calibrated in kg. The pulley axes are mounted on the wall of a lift in a 50-storey building. What

125. US HISTORY

is there a limited amount on how much alcohol an industry can produce???

126. writing to explain

The perimeter of rectangle Y is equal to its area. Rectangle Z has the same perimeter as rectangle Y. The length of rectangle Z is 5 inches an the width is 3 inches. Explain how you can find the length and width of rectangle Y.

127. calculus

Let z = ∫e^(sin(t))dt from x to y a = x b = y I tried thinking about it like a chain rule but even then i'm a little unsure. I know dz/dt = e^(sin(t)). Can you please point me in the right direction if i'm supposed to use the chain rule.

128. voc 1

The root word bic means two

129. Physics-Charges

A wall has a negative charge distribution producing a uniform horizontal electric field. A small plastic ball of mass 0.0261 kg, carrying charge of −102 μC, is suspended by an uncharged, nonconducting thread 0.369 m long. The thread is attached to the

130. voc 2

I don't want to discourage you, but the test is rather difficult. The prefix of the italicized word in the sentence above is not

131. ELA

The meaning of this sentence can be improved by adding which phrase to the end of (20)? (19)Sometimes, the Coffins helped the travelers disguise themselves by putting on elegant clothing.(20)Other people helped. A.by staying away B.by doing useful things

132. Math

Find the volume of a tank in the form of horizontal cylinder whose radius is 2.6 yd, and length is 8.4 yd. report your answer to the nearest tenth of a cubic yard, and use 3.14.

133. Maths

In a class 40 students,31 play football,26play hockey and 13play volleyball.19 play football and hockey,8play both football and volley,and 7play both hockey and volleyball. Each student plays at least one of the three games. i. Illustrate the information

134. Maths

Mr Jones takes 4 hours to paint a fence. Mark his son takes 6 hours to paint the same fence. How long does it take for them both to paint the fence?

135. Math

Calculate the area of a circular patio that has a radius r=3 yd. Use 3.14

136. US HISTORY

I need to end an essay on prohibition era and these are my subtopics: crimes, laws, and prohibition movements

137. math

If one runs at a rate of 4.2 miles per hour. If she ran this rate for 48 minutes. How far did she run?

138. U.S History

Why was there an Agricultural boom during WW1? Why did the boom come to an end?

139. social studies

ok, in 1837 who was Horace Mann?????

140. English

I urgently need you to have a look at the following sentences. I really hope you are not looking after your grandchildren today. 1) Your account (description) of historical events is incomplete and occasionally wrong. In addition, you failed to cover the

141. tax

Taxpayers who contribute to or withdraw from an HSA during the year must: A. attach a written note to their tax return. B. file a Form 8889 and attach it to their Form 1040. C. do nothing. D. report it on Schedule A. is it B

142. Science

The following DNA sequence represents a eukaryotic gene. Indicate which is the template and which is the coding strand, determine where transcription begins (assume it ends at the end of the sequence presented), write out the nucleotide sequence of the

143. tax

For the deduction of self-employment taxes, which of the following statements is correct? A. They are taken as an itemized deduction on Schedule A B. They are not deductible C. They are 80% deductible as a for AGI deduction D. They are 50% deductible as a

144. English

I need examples of selflessness in Robin Hood and Jeremiah Johnson - I have Robin Hood but don't know about Jeremiah Johnson

145. US HISTORY

How does Prohibition on alcohol during the 1900's affect today life

146. English

Rewrite each of the following sentences so that related ideas are expressed in similar or parallel structures. 1.)People differ in their fingerprint patterns, in how they talk, and in their dental patterns. 2.)Computers are used to analyze voice patterns,

147. algebra 1

The perimeter of a rectangular deck is 175 feet. The length of the deck l is 6 feet longer than 2 tines the width

148. Math

2 students had a contest to see who could run the farthest in 3 minutes. Felipe ran 2/3 mile. Emanuel ran 3/4 mile. Which is one way to correctly compare these fractions? A.8/126/8 C.15/20

149. Statistics

A poll of 92 students found that 48% were in favor of raising tution to pave new parking lots. The standard deviation of this poll is 3%. What would be the standard deviation if the sample size were increased from 92 to 195?

150. spelling

sentence using the word custom and lawyer

151. Geometry

Find the perimeter of the triangle. L1=12.5 in, L2= 10.6 in, L3= 9.5 in.

152. American Literature

Explain the meaning of one example of Cather's use of animals to describe human behavior.

153. physical

When they start to move,car A exerts a force of 600N on its end of the towrope.The frictional force on car B when it accelerates,is 300N And its masses is 1200kg(a)calculate car bs initial acceleration(b)after a while the cars move at a constant velocity

154. Math

Chuck listed the prime factors of a number 2,3,7 Did Chuck list the prime factors of 21,35,42,or 45? A.21 B.35 C.42 D.45 C?

155. managerial economics

Explain why the cost structure associated with many kinds of information goods and services might imply a market supplied by a small number of large firms. (At the same time, some internet businesses such as grocery home deliveries have continually

156. American Government

The president's fast track authority was revoked in _____ but restored in _____. 1.)1978, 1995 2.)1945, 1965 3.)1980, 1987 My answer4.)1994, 2002

157. trig

solve each equation for è, giving a general formula for all of the solutions: 6. tanè=-1 7. sin(è/2)=1/2 Please show step by step on how to solve these. Im not sure on how to do them. Thank you for your help!

158. English

Here is the secomd part of my rephrase. I urgently need to rephrase point 5 (symplifying it). 1) He addresses one of the pupils, identifying her by her number in the class, not by her name. She introduces herself as Sissy Jupe. 2) He takes offence at this

159. tax

Mrs. Gonzales must use a wheelchair. Upon advice from her physician, she installed an elevator and widened the front entrance of her house in 2011, incurring \$15,000 and \$4,000 in costs, respectively. Mrs. Gonzales originally purchased her house for

160. biomecular sciences

I need to calculate beta-galactosidase units for a lab and i am really having a hard time. please show me how to calculate. A B C OD 600 .166 .109 .105 0d420 A1 .74 A2 1.40 B1 .16 B2 .33 C1 .10 C2 .11 average of 420 = 1.07-A, .25 = B, .15 = C, and .18 for

161. Bio Anatomy

What is the difference between bone matrix (compact) and intercellular matrix (in spongy bone)? Thanks

162. Chemistry

How would you get the concentration(ppm) of a sample from absorbance? Absorbance of standard = 2.55 Absorbance of sample = 2.31 Wavelength of machine 345nm slit lenght = 1cm time = 2s The metal being tested is Copper and the concentration of the standard

163. spelling

sentence using word lawyer

164. Math

I forget how do you do this problem? -y < -x-2

165. voc 4

She is the youngest person in the class. The suffix in the italicized word in the sentence above is most .

166. math

Given 4 12 20 28 sequence explain how the pattern grows

167. chemistry

If 4.00 g of metal is plated in the voltaic cell (which contains Ag and Ni with the total potential of 2.98 V) , how much metal is plated in the electrolytic cell (contains Ag and Zn with the total of 1.98 V)? I have no idea how to do this! Help?

168. pre algerbra

What is the answer to x/8-12=10 we need to find x i don't get how to do it

169. tax

During 2011 Shakira paid following expenses: prescription medicines \$525 doctors and dentists \$1050 vitamins and ibuprofen \$ 275 health club membership fee \$ 450 what is the total amount of medical expenses (before application of adjusted gross income

170. Ms.Sue (ONLY)

can you plz help me in science? PLZ HELP ME! YOU HELP ALL THE TIME! *begs* plz help! i am my knees!!!!! (really i am!) its called "science 8th grade"

171. Finance

Suppose your bank account will be worth \$4,200.00 in one year. The interest rate (discount rate) that the bank pays is 5%. What is the present value of your bank account today?

172. voc 8

In order to change the meaning of the word teach from "to give instruction" to "to give instruction with" you would add the prefix . teaching

173. science

If you can only answer just one that's just as helpful too! thanks what unit of measurement is used to measure different colors of white light? how often do you zero a spectrophotometer?

174. accounting

Schumacher Company uses the perpetual inventory system, and it engaged in the following transactions during 2012: 1) Started the business by issuing common stock for \$7,500 cash 2) Paid cash to purchase \$5,000 of inventory 3) Sold inventory that cost

175. math

Fill in the missing digit: _.4 x 2.4 +3.28 + 16._ _ = 19.6_

176. tax

For 2011, Jorge, a single father, reported the following amounts relating to his investments: Net investment income from interest \$7000 interest expense on a loan to purchase stock 2000 interest expense on funds borrowed in 2010 to purchase land for

177. physics

A pistol is fired horizontally and the bullet has a muzzle velocity (speed with which the bullet leaves the barrel) of 31.3 m/s. The gun is 50 m above the surrounding terrain. a) How far away does the bullet land measured horizontally from a point directly

178. history

Which of the following is associated with the development of chain stores? A. R. H. Macy B. John Wanamaker C. Marshall Field D. F. W. Woolworth I think its d is that correct

179. physics

A truck of mass 8000 kg is accelerating at 5.0 m/s2 up a hill of inclination 4 degrees to the horizontal. The friction forces on the truck add up to 550 N. a) Draw a neat FBD of the truck indicating all the forces acting on it. b) What force does the truck

180. English

I'd like you to check the first part of the rephrase. I'll post you the rest in my next post. Thank you. 1) In Chapter 2 Thomas Gradgrind, is introduced as a rigid, narrow-minded man, who seems to be concerned only about facts with a total disregard for

181. CHEMISTRY! Help?

If 4.00 g of metal is plated in the voltaic cell (which contains Ag and Ni with the total potential of 2.98 V) , how much metal is plated in the electrolytic cell (contains Ag and Zn with the total of 1.98 V)? I have no idea how to do this! Help?

182. tax

Which of the following interest expenses incurred by Amanda is treated as personal interest expense and, therefore, not deductible as an itemized deduction? A. Interest expense on personal credit cards B. Bonds purchased with accrued interest C. Interest

183. physics

A flatbed truck is carrying a 2540 kg crate of heavy machinery. If the coefficient of static friction between the crate and the bed of the truck is 0.540 , what is the maximum rate (in meters/second^2) that the driver can decelerate when coming to a stop,

184. tax

During 2011, Sam paid the following taxes:

185. math

find the points on the given curve at which the curvature is a maximum? a)y=e^-x b)y=lnX

186. Statistics

How do I discover which data set in a problem is more spread out? Do I look at the numbers, or do I look at a histogram or any other type of graph?

187. math

i have 3 numbers 10,7,and 6 and need to make them work in 35...but it cant be like 7 into 35 it has to be all 3 numbers and can be used more than once but after another number like 10 + 7 +10 ect

188. Math

Mr.Mike wants to leave the waitress a 12% tip. Estimate the tip if he should leave if the family's bill is \$32.46. Please show ALL WORK.......THANK YOU!!!!! :)

189. history

Which of the following statements about the provisions of the Compromise of 1850 is true? A. The New Mexico Territory was absorbed into Texas. B. The slave trade was abolished in the District of Columbia. C. The principle of popular sovereignty was

190. chemistry

1. Which of these chemical formulasCl2, KCl, Ar, or NO2represents both an element and a molecule? 2. A miner finds a small mineral fragment with a volume of 5.74 cm3 and a mass of 14.4 g. What is the density of that mineral fragment?

191. math

find each missing number. 1.)19/n = 0.76 2.)n:20 = 0.55 3.)n = 1:10 (n is a decimal) 4.) n% = 1:100 5.) n% = 33:100 6.) 99% (n is a decimal) 7.) n/25 = 17:25 8.) 41:n = 0.82 9.) n/25 = 0.08 10.) 21:n = 0.21

192. tax

Which of the following expenses is deductible, but subject to the 2% limitation on Form 1040, Schedule A; Job Expenses and Most Other Miscellaneous Itemized Deductions? A. A blue suit for an accountant B. Appraisal fees on the sale of a personal residence

193. calculus

Find the equation of a parabola with vertex(5,-3)and the axis of symmetry is parallel to the y-axis and pass through the point(9,5)

194. math

find to the nearest minute, all positive values in the interval 0° ≤ θ < 180° that satisfy the equation 2 tan^2 θ - tan θ = 3

195. statistics

A normal distribution has a mean of µ = 100 with standard deviation = 20. If one score is randomly selected from this distribution, what is the probability that the score will have a value between X = 80 and X = 100?

If the time elapsed is 4.26 min, what is the value of the rate constant, k? ln[R]t / [R]o = -0.0237 I am not sure how to slove this. Is Rt 4.26 min

197. math

find to the nearest minute, all positive values in the interval 0° ≤ θ < 180° that satisfy the equation 2 tan^2 θ - tan θ = 3

198. Math

Need Answer to the Following Please: Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four different digits to form a four-digit number that is NOT divisible by 7. The digits 1238 cannot be arranged to create a four-digit number that is

199. AP CHEM5

Micheal recives a 9.8% raise. He currently earns \$1,789.46 per month. Estimate the amount by which his monthly earnings will increase. Help please I do not understand this problem!! :) SHOW ALL WORK PLEASE & THANK YOU!! :)

201. calculus

Let z = ∫(e^sin(t)dt) from x to y a = x b = y I tried thinking about it like a chain rule but even then i'm a little unsure. I know dz/dt = e^sin(t). Can you please point me in the right direction if i'm supposed to use the chain rule.

202. statistics

34 percent of the undergraduate students in a large university have full-time jobs. A random sample of 26 undergraduate students are selected. What is the variance of the number of students who have full-time jobs in such a sample? Calculate to two decimal

203. math

How do I discover which data set in a problem is more spread out? Do I look at the numbers, or do I look at a histogram or any other type of graph?

204. math

Jan ate 1/8 of a pizza. Then she ate 1/3 of the pizza. Later she ate 1/4 of it. How much did she eat in all? Thank you!

205. English

17. Which sentence contains a verb in the simple past tense? A. She has obeyed her father. B. She obeyed her father. C. She obeys her father. D. She had obeyed her father.

206. english

when Odysseus described his reputation for guile to Alcinous, he is revealing A)internal conflict B)character C)external conflict D)irony

207. physics

How large a force (in newtons) is needed to accelerate a 3 metric-ton vehicle from rest to a speed of 50 km/hr in 4 s?

209. physics

An airplane is flying NW with a ground speed of 600 Km/h. If a 125 Km/h wind from the W suddenly hits the airplane, find the airplane's new speed and direction relative to the ground.

210. Calculus-help~

A certain fast food restaurant wants to determine the increase in revenue per cheeseburger if sales are \$45,000. Let the function [p=(120000-x)/(30000)] represent the price of x cheeseburgers.

211. Physics

Please Help me on these: 3. What mathematical expression tells you to what percentage the charge is after n t1/2's? (All these should be multiplied by 100% to obtain the percentage.) 2- n V*C e-t/τ R*C 1 - 2^- n ((((((((((( I think this is right what do

212. Math

One end of a rope is tied to the top of a pole which is 30cm long and the rope is pulled tant then the other and is tied to a peg on the level ground.the angle of elevation which the rope makes with the ground is 55 degree celsius. Find the distance from

213. physics

A penny is dropped from a 300ft high bridge. a. How long does it take for the penny to reach the ground below? b. What is the velocity of the penny upon impact?

214. physics

You throw a 134 g ball straight up to a height of 43.0 m. (a) Assume that the displacement of your hand is 0.70 m as you throw the ball straight up. How long is the ball is in your hand? (b) Calculate the average force exerted by your hand while you are

215. HCT

The data shown below shows the amount in dollars spent on groceries in one day by 30 people. 204 210 227 218 254 256 238 242 253 227 251 243 233 251 241 237 247 211 222 231 218 212 217 227 209 260 230 228 242 200 1 mark a. Is it a continuous or a discrete

216. calculus

Let z = ∫e^(sin(t))dt from x to y a = x b = y I tried thinking about it like a chain rule but even then i'm a little unsure. I know dz/dt = e^(sin(t)). Can you please point me in the right direction if i'm supposed to use the chain rule.

217. Chemistry

A solution is prepared by mixing 3.5 g of nitric acid with enough water to make 8.00 L of solution. Find the [H3O+], [OH-], pH and the pOH

218. Biology

As a nurse in a hospital, your observe that certain kinds of pain may be allievated by mere offering of a drug, potent or not. To test this hypothesis, two pain drugs and placebo randomly adminstered to patients following surgery. Time is recorded in hours

a jar contains 4 blue marbles and 1 yellow marble. If Carol picks one marble without looking, what is the probability that she will pick a blue marble? a 1 out 5 b 1 out of 4 c 3 out of 4 d not here

220. bio

how does the small intestine complete the digestion of lipids?

221. physics

okay a race car's velocity increases from 4 m/s to 36 m/s over a 4 s time innterval, its average acceleration would be 10 m/s 2 ? would this question be true ?

222. Mechanics M1

A rabbit runs in a horizontal straight line ABC across a field (a)the rabbit runs from rest at A with a constant acceleration of 0.8 m/s^2 and reaches B after 3 seconds, find its speed at B

223. physics

a kitten pushes a ball of yarn rolling toward it at 1.00 cm/s with its nose, displacing the ball of yarn 17.5 cm in the opposite direction in 2.00 s. What is the acceleration of the ball of yarn ? a) 8.75 cm/s2 b) 10.75 cm/s2 c) 9.75 cm/s2 d) need more

224. science

How do the atmosphere, lithosphere and hydrosphere interact with each other?

225. math

the ratio of boys to total of students is 2:5.the number of girls of the student is 3. there are 123 girls.how many boys are there?

226. Mechanics M1

A girl swims across a river. When she swims in still water, she swims at 1.25 m/s, the river flows parallel to its banks at v m/s. The girl aims to swim upstream at angle θ degree to the river bank so that her resultant velocity of 1 m/s is along AB,

227. Physical science

The engine of a car is being lifted out of the car by using a pulley system. The weight of the engine is 8000N. Use a scale diagram to determine the horizontal force, F1 that a mechanic has to use to hold the engine in such a position that the rope makes

228. Chemistry

What kind of orbital is designated by the quantum numbers (3,1,1,1/2)? Answer s, p, d, or f only.

229. math

What is 30 inches increased by 30%?

230. Chemistry

assuming the vinegar solution has a density of 1.01 g/mL, calculate the percent by weight of actic acid (CH3CO2H) in your sample of vinegar. How does the value compare with 5% the value for the % acetic acid in normal vinegar? Thanks!

231. Chemistry

A buffer is prepared by mixing 0.30 mole of formic acid (HCNO2) and 0.20 mole of sodium formate (NaCHO2) in enough water to make 0.50 liter of solution. Ka of formic acid is 1.7 x 10-4. Calculate the pH of the resulting buffer solution.

232. Science

PLEASE HELP ME!!!!! Which requires more energy? Heating up a 350 mL cup of coffee from 25C to 65C? or Warming the surface of a Lake (2,000,000,000 mL) from 28C to 29C. and Prove your answer.

233. tax

during 2011 sam paid following: property tax on residence (paid from escrow account) \$1550 Property tax portion of car registration (based on value) \$400 property taxes on land held for long term appreciation \$350 What amount can Sam deduct as property

234. physics

A high-speed sander has a disk 8.00 cm in radius that rotates about its axis at a constant rate of 1100 revolutions per minute. Determine the angular speed of the disk in radians per second.

235. Chemistry

The molar mass of an unknown salt is 63.5. If 4.81 g is added to 81.1 mL of water the temperature changes from 20.95oC to 21.62oC. What is the molar heat of solution (J/mol) of the salt? (Assume all of the heat is transfered to the water) Express your

236. chemistry

what are van der waals forces

237. Chemistry

Given the following hypothetical equations, 2A + B → 3C + 2D ΔH = -46.7kJ C → B ΔH = 13.1kJ 2E → B ΔH = 84.5kJ, what is the enthalpy change (kJ) for the following reaction? A → D + 2E

238. statistics

The following is a sample of 19 Novemeber utilily bills(in dollars) from a neighorhood: 52,62,66,68,72,74,74,76,76,76,78,78,82,84,84,86,88,92,96. Find the five-number summary.

y=log(100493/40000*x-1) y=atan(100493/40000*x+1) y=exp(-100493/40000*x+1) Note you will need 2 integrals to represent the area. Approximate the area of the region bounded by the given curves. I can do it with two but kinda struggling over here please

240. Math

Explain why are precise measurements important?

241. physics

a wagon is being pulled by a rope that makes at 25o angel with the ground . thee person is pulling with a force of 103N along the rope . determine the horizontal and vertical components of the vector

242. math

If you deposit \$10,000 in a savings account now, what interest rate compounded continuously would be required for you to withdraw \$15,000 at the end of 6 years? B. A savings and loans facility offers a CD with a monthly compounding rate that has an APY of

243. geometry

April wants to add a ribbon border to the circular rug in her living room. If the area of her rug is 113.04 square feet, how long does the ribbon need to be?

244. statistics

what is the percentile for the data value. In a data set with a rane of 60.07 to 115 and 300 observations, there are 207 observations with values less thsn 85.4. Find the percentile for 85.4.

245. Chemistry (stoichiometry)

18.5 grams of calcium chloride reacts with 25.7 grams of sodium phosphate and produces calcium phosphate and sodium chloride. What is the limiting reactant? (show work)

246. Algebra

How many books that are 5/6 inches wide will fit on a shelf that is 15 inches long?

247. Math

find the value of expression. 3*45/9-2(10-)-4/2

248. CALC 2a

f(x)=x^3-3x^2-3x-8/(-3x^2-4x-6) Find the equation of the non-vertical asymptote. What is the smallest value of x at which f(x) intersects its non-vertical asymptote? please help i have no idea how to solve this thanks!

249. Chemistry

A sample of oxygen is collected over water at a total pressure of 592.2 mmHg at 27C. The vapor pressure of water at 27C is 26.7 mmHg. What is the partial pressure of O2? ***Please show steps

Solve the equation. Show your work. 3m^2=-6m

Mike bought 3 tennis and 2 badminton rackets for \$300. If he buys 2 badminton and 2 tennis rackets, he pays \$240.How much is a tennis racket?

252. statistics

Of all 3- to 5-year old children, 56% are enrolled in school (p=0.56). We are looking at a sample of 500 (n=500) such children, and this is thought to follow a binomial distribution. Use the normal approximation to the binomial to find the probability that

253. Physical science

Using the kinetic theory and explain why the weather balloon will burst at high heights?

254. Chemistry

during a molar volume of oxygen experiment indicate how each of the following errors would affect (increase, decrease, or no change) your calculated value for the molar volume of O2 at STP. 1.) Your sample was not completely decomposed. 2.) After you

255. Ela- Ms.Sue Plz!

COuld someone help me with my homework? I need to write a thesis statement for a research paper on steve job

256. Calculus-verify

What is the second derivative of f(x) = 5/3x^(3) - x^(3/2) + 6? Second derivative of f(x) = 5/3x^(3) - x^(3/2) + 6 is f''(x)=10x + 3/(4sqrt of x)

257. physics

Two vectors and have magnitude = 3.08 and = 3.08. Their vector product is = -5.07 + 2.00 . What is the angle between and

258. Math

Classify the given number. - 4/9

259. physics

The scalar product of vectors and is +53.0 . Vector has magnitude 6.00 and direction 28.0 west of south. If vector has direction 39.0 south of east, what is the magnitude of ?

260. physics

A ship leaves the island of Guam and sails a distance 280 at an angle 38.0 north of west.In which direction must it now head so that its resultant displacement will be 115 directly east of Guam? (Express your answer as an angle measured south of east) How

261. math

a ladder is leaning againt the side of a building. The ladder is 10 feet away from the building and touches the building at a point 24 feet above the base. How long is the ladder?

262. Statistics

New data is added to change the mean time to 6 mninutes and 10 seconds with standared deviation 2 minutes and 5 seconds. The mean depth is now 115.5 feet with standard deviation 31.6 feet. If the association is still negative and r^2=.68, find the slope of

263. math

How do i find 40% of 4,800? What is the strategy?

264. CAlculus

using chain rule find the derivative of y=xsin1/x

265. bio Anatomy

What is the difference between bone matrix (compact) and intercellular matrix (in spongy bone)? Thanks

266. Physics

a frictionless roller coaster car of mass m = 719 kg tops the first hill with speed v0 = 15.2 m/s at height h = 48.9 m. How much work does the gravitational force do on the car from that point to (a) point A, (b) point B, and (c) point C? If the

267. physics

A pulsar is a rapidly rotating neutron star that continuously emits a beam of radio waves in a searchlight manner. Each time the pulsar makes one revolution, the rotating beam sweeps across the earth, and the earth receives a pulse of radio waves. For one

268. painting acrylic

when mixing colors to paint flat areas,what should I do?

(t+7/3)^2

270. physics

A CD has a mass of 17.4 g and a radius of 6.01 cm. When inserted into a player, the CD starts from rest and accelerates to an angular velocity of 20.0 rad/s in 0.901 s. Assuming the CD is a uniform solid disk, determine the net torque acting on it.

Next to Willow,our school is in the Dark Ages. How does the author organize the support for this argument? A.By using cause and effect B.By using comparisons C.By using problem and solution D.By using opinions B?

272. algebra

(3/4x-1/6)(3/4x+1/6)

273. math

related to last question -- why is the probability the same for yyy, xxx,zzz on the spinner with x y z thanks

274. literature09998

The Tragedy of Macbeth act 1 ___c__ 1.Lady Macbeth seems more __ than her husband. a. compassionate c. ambitious b. patient d. gentle __b__ 2. The play takes place in which country? a. Denmark c. England b. Scotland d. France act 2 __d__ 3. When Macbeth

275. trigonometry

If the height of the building is 250 feet, what is the distance from the top of a building to the tip of its shadow? A. 75.4 feet B. 113.1 feet C. 0.003 feet D. 331.3 feet

276. Chemistry

Write the standard line notation for each cell below. Mn2+ + 2 e- --> Mn E = -1.18 V Fe3+ + 3 e- --> Fe E = -0.036 V

277. Thesis statement

I need to write my own classification and division Essay of 200 words about the versions of English spoken using mother tongue as a sample. I'm having Trouble developing a good thesis statement. Please help!

278. ACC 290

When might an accountant use cash basis accounting without violating GAAP?

1. The employees of Abs “R” Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. They decide to pool their resources to purchase the company. This would be called a _______ buyout. A.

280. I really need help..(Algebra)

Solve the equation. Show your work. 3m^2=-6m

281. English

Writeacher, I really need your help to check these sentences!! Too many mistakes. 1) Lady Macbeth compared the Duncan's murder with a painted devil, a picture that scared only children who thought it was real. Correction: Lady compares dead and sleeping

282. physical science

what was the kinetic energy of each car before breaking

283. math

Express this ratio as a unit rate \$2.40 per dozen

284. Physics - Waves

he largest tension that can be sustained by a stretched string of linear mass density μ, even in principle, is given by τ = μc2, where c is the speed of light in vacuum. (This is an enormous value. The breaking tensions of all ordinary materials are

285. physics

A pendulum has a period of 0.70 s on Earth. What is its period on a planet where the acceleration of gravity is about 0.51 that on Earth?

286. geometry

the adjacent angle of parallelogramare in the ratio of 2:3 find themeasure of all the angles

287. science

What are the main differences and similarities of the superior appendicular skeleton and inferior

288. Science

The distance from one molecule in a body to the nearest molecule in the body occupying a similar position and moving in the same direction is a

289. science

The wavelength of a wave is 20cm.fifteen of these waves move past a point per second.calculate da frequency

290. ELA

What change should be made in this sentence? These are used in the dark of night for carrying former slaves to the next stop on their journey. A.Change these to they B.Change are to were C.Change for to and D.Make no change B?

291. Physics

A winning basketball shot in the last second of a game is launched with an initial speed of 12.2 m/s, 68 degrees above horizontal, and at a height of 2 m above the floor. The ball passes through the basketball hoop mounted at 3.05 m above the floor. A.

292. ACC 290

What is an example of an accrual?

293. communication

What is required to get to the connotative level?

294. Calculus

Show that a,b,c, and d are positive integers when, ((a^2+1)(b^2+1)(c^2+1)(d^2+1))/abcd≥16

295. Square roots

The diagonal of a square has length square root 2 X s, where s is the length of a side of the square. What is the length of the diagonal in a square with sides that are 13 cm? Round your answer to the nearest tenth.

296. Math/ Algebra

Give an example of a function using a set of at least 4 ordered pairs. The domain will be any four integers between 0 and +10. The range will be any four integers between -12 and 5. Explain why your example models a function. Give an example of at least

297. calculus

find the second-order partial derivatives of f(x,y)=x^3 + x^2y^2 + y^3 + x+y and show that the mixed partial derivatives fxy and fyx are equal

298. calculus

If 0 degrees < x < 180 degrees, what values of x, to the nearest degree, are the solution to the equation 2tan to the square x + 5tanx - 12 = 0

299. math

Height of a box. Suppose a box has a volume of 100 cubic centimeters and that the area of the bottom of the box is 50 square centimeters. Find the height of the box?

300. english immigration

I need help explaining experiences english immigrants had while travelling to the united states in the 1920s. Also, how they gained entrance into the counrty and experiences at Ellis Island

301. Physics

A projectile mass of 0.500 kg is shot straight up with an initial speed of 28.0 m/s. A. How high would it go if there were no air friction? I got this answer, it is 40 m. B. If the projectile rises to a maximum height of only 34.0 m, determine the

302. Ela

What is the best way to combine these 2 sentences? (7)Levi Coffin had been a teacher. (8) Became a merchant. A.Levi Coffin had been a teacher, and he was a merchant. B.Levi Coffin had been a teacher, and then he became a merchant. C.Levi Coffin had been a