# shan

Most popular questions and responses by shan
1. ## Calculus

The demand function for Sportsman 5 X 7 tents is given by the following function where p is measured in dollars and x is measured in units of a thousand. (Round your answers to three decimal places.) p = f(x) = -0.1x^2 - x + 40 (a) Find the average rate of

2. ## physics

Skater 1 has a mass of 45 kg and is at rest. Skater 2 has a mass of 50 kg and is moving slowly at a constant velocity of 3.2 m/s [E]. Skater 3 has a mass of 75 kg and is moving quickly at a constant velocity of 9.6 m/s [E]. Which skater experiences the

3. ## algebra

Suppose you work in a clothing store. Each week you earn \$250 plus a commission equal to 2.5% of your sales. This week your goal is to earn no less than \$350. Write and solve an inequality to find the amount of sales you must have to reach your goal.

4. ## Calculus

The percentage of alcohol in a person's bloodstream t hr after drinking 8 fluid oz of whiskey is given by the following equation. A(t) = 0.26te-0.3t , (0 t 12) (a) What is the percentage of alcohol in a person's bloodstream after 1/2 hr? After 6 hr? (Round

5. ## engineering mechanics

The resultant if a certain system of forces has x and y components. Determine the components of this resultant with respect to N and T axes rotation 30 degree counterclockwise relative to the x and y axes. Ans. Rn= 500 lb Rt= 266 lb How did it happen?

6. ## Calculus

The concentration of a certain drug (in mg/cm3) in a patient's bloodstream t hr after injection is given by the following function. C(t) = (0.6 t)/(t^2 + 5) Evaluate the limit. (If an answer does not exist, enter DNE.)

7. ## ratio

Divide 6400 in the ratio 5:3

8. ## ENGLISH (ESL)

please need proof Reading Health promotion means what you can do to reduce the health risks and promote the wellness of a human being. This process directed towards enabling people to take action and support them in changing their lifestyle to move toward

9. ## Accounting

Effect of Stock Split Gino's Restaurant Corporation wholesales ovens and ranges to restaurants throughout the Midwest. Gino's Restaurant Corporation, which had 100,000 shares of common stock outstanding, declared a 5-for-1 stock split (4 additional shares

10. ## physics

Two fi gure skaters are moving east together during a performance. Skater 1 (78 kg) is behind skater 2 (56 kg) when skater 2 pushes on skater 1 with a force of 64 N [W]. Assume that no friction acts on either skater. T / I (a) Determine the acceleration of

11. ## physics

A horizontal plank (m = 2.0 kg, L = 1.0 m) is pivoted at one end. A spring. (k = 1.0 x 10. 3. N/m) is attached at the other end find the angular frequence for small oscillations?

12. ## physics

The automobile is originally at rest at s = 0. If its speed is increased by dv/dt = (0.05t2)ft/s2, where t is in seconds, determine magnitudes of its velocity and acceleration when t = 18 s.

13. ## physics

Determine the stopping distances for an automobile going a constant initial speed of 97km/h and human reaction time of 0.50s , for an acceleration a=−6.5m/s2

14. ## physics

You decide to take your dog to the leash-free zone in the park. While playing, the dog runs after a ball and heads 24 m [W 12° S] and then gets distracted by a squirrel and runs 33 m [E 52° S]. Determine the displacement of the dog

15. ## math

Let p represent the statement, "Jim plays football", and let q represent "Michael plays basketball". Convert the compound statements into symbols. Jim does not play football or Michael plays basketball. 1. p q 2. ~p q 3. p q 4. ~(p q)

16. ## physics

A body of mass 5.0 kg is suspended by a spring which stretches 10 cm when the mass is attached. It is then displaced downward an additional 5.0 cm and released. Its position as a function of time is approximately?

17. ## physics

A 0.200 kg block of ice at 15ºC is placed into a pan on a stove, heated to a liquid, and then to vapour with a final temperature of 115ºC. Calculate the total amount of heat required for this process.

18. ## Calculus

Find the absolute extrema of the function. (Round your answer to three decimal places.) f(x) = xe-x2 on [0,2] Absolute maximum value: at x = Absolute minimum value: at x =

19. ## physics

11.2 The baggage truck A has a mass of 800 kg and is used to pull two cars, each with a mass of 300 kg. If the tractive force F on the truck is F = 480 N, determine the initial acceleration of the truck. What is the acceleration of the truck if the

20. ## physics

when one boy is sitting 1.20 meter from the center of he seesaw the girl must sit on the other side 1.50 meter from the center to maintain an even balance . however the boy carries an additional mass pf 14 kg and sit 1.80 meter from the center the girl

21. ## bio

Explain why it is more likely for mistakes in oogenesis to be inherited by the offspring than mistakes in spermatogenesis

22. ## stat

In a certain high school, the probability that a student drops out is 0.08, and the probability that a dropout gets a high-school equivalency diploma (GED) is 0.33. What is the probability that a randomly selected student gets a GED?

23. ## physics

1.6 Determine the maximum weight of the flowerpot that can be supported without exceeding a cable tension of 50 lb in either cable AB or AC. Note that the 2 cables make an angle 60 and 53.1 respectively with the horizontal

24. ## algebra

Suppose you measured the diameter of a tree trunk to be 5 cm. The actual diameter can vary by at most 0.4 cm, due to the error in measuring a non-flat surface. Write an absolute value inequality for the range of acceptable diameters and solve the

25. ## Finance Homework

Washington-Pacific invests \$2 million to buy a tract of land and plant some young pine trees. The trees can be harvested in 15 years, at which time W-P plans to sell the forest at an expected price of \$4 million. What is W-P's expected rate of return?

26. ## physics

The collar has a weight of 8 lb. If it is released from rest at a height of h = 2 ft from the top of the uncompressed spring, determine the speed of the collar after it falls and compressed the spring 0.3 ft.

27. ## social studies

How did the geography of ancient Greece cause it to separate into independent communities?

28. ## physics

You are 1.7m tall and your eyes are 8cm from the top of your head. How tall must a vertical plane mirror be to see your entire length? Also how far from the ground is the top of the mirror?

29. ## geometry

a self supporting ladder placed so that the angle between the ladder and the ground is 75.5" can be used to test whether the ladder can support a certain load. The diagram represents a ladder placed next to a window that is 20feet above the ground. What is

30. ## physics

500g of water at 40 deg C and 200g of a mixture of ice and water are combined. The final temperature is 10 deg C. How much of the original 200g mixture was ice?

31. ## Calculus

Use the four-step process to find the slope of the tangent line to the graph of the given function at any point. f(x) = 16 - 10 x Step 2: f(x + h) - f(x) = Step 4: f'(x) = lim(h->0)(f(x + h)- f(x))/h =

32. ## physics

A toy car (200 g) moves by shooting a plastic ball (50 g) horizontally out the back. The average acceleration of the car is 1.2 m/s 2 [E] and there is negligible friction acting on each part of the toy. T / I C (a) Draw an FBD for each object. (b) Identify

33. ## Calculus

In a study prepared in 2000, the percentage of households using online banking was projected to be f(t) = 1.7e0.71t , (0 t 4) where t is measured in years, with t = 0 corresponding to the beginning of 2000. (Round your answers to three decimal places.) (a)

34. ## English

No wonder can last more than three days All good things are three are the same statements ? conquer is opposite of overpower 2 submit 3 subject 4 vanquish 5 master .

35. ## physics

The motion of a particle is described by x = 10 sin (piet +pie/2 ). At what time ( in second ) is the potential energy equal to the kinetic energy ? here is what i have done so far where am i going wrong V=pie10cos(piet + pie/3) V^2 = pie^2 100cos^2(piet+

36. ## math

tanx+secx=2cosx (sinx/cosx)+ (1/cosx)=2cosx (sinx+1)/cosx =2cosx multiplying both sides by cosx sinx + 1 =2cos^2x sinx+1 = 2(1-sin^2x) 2sin^2x + sinx-1=0 (2sinx+1)(sinx-1)=0 x=30 x=270 but if i plug 270 back into the original equation i get undefined

37. ## math

the diagonals of a parellelogram are 20 cm and 30cm long and intersect at an angle of 25 degrees. Find the sides of the parellelogram

38. ## physics

A baseball bat makes contact with a ball 1.05 meters above the ground and the ball moves away at a 41.5 degree angle from the horizontal. It's a homer!! The ball lands in the bleachers 133.5 meters away from home plate, 4.1 meters above the ground. How

39. ## economics

Is your school currently producing at capacity? What considerations might inhibit full capacity utilization?

40. ## physics

600g of water is mixed with 20g of steam at 100 deg Celcius. What is the final temperature if the original temperature of the water is 25 deg Celcius

41. ## math

I have decided that a 300 foot tall tower needs an extra guide wire. The location I have chosen is 1000 feet from the base of the tower. What angle does the wire make with the ground and what length will the wire be?

42. ## Economics

GDP=520 Government spending decreases by 15 Taxes decrease by 20 Investment increases by 30 Net Exports decrease by 30 MPC=.75 What is the new equilibrium GDP?

43. ## physics

Brandy is made by distilling ethyl alcohol, which is done by boiling the alcohol until it turns into a gas. How much heat is required to completely distil 0.750 kg of ethyl alcohol?

44. ## Math

The play sold 88 tickets. The adult tickets sold for \$8 and the kid tickets sold for \$5. The total amount collect for tickets was \$614. How many tickets of each type were sold?

45. ## science HElp

Ph scale Which on is true A substance with ph is twice as acidic as substance with ph of 4. A subtances with ph 3 is 10 as acidic as substance with ph of 4. A substance with ph 3 twice as alkies as substances with ph 4. a substancs with ph 3 10 time alkies

46. ## English Help

Please check grammatical errors. "Paradise lost" is a very interesting and religious story. The write make a point to describe the unfaithfulness of angles and fall of human from the heaven. The basic theme of the poem is man‘s first disobediently to

47. ## physics

A horse runs off of a 11 meter high cliff into the sea. The horse is running at a speed of 3.6 m/s. How much time does the horse spend in the air? How far from the base of the cliff is the horse when it hits the water?

48. ## ITT

use the eight step strategy to graph f(x)=-3x2-12x-5 find the vertex find x and y intercepts determine the number of points to graph graph the parabola

49. ## ENGLISH (ESL)

PROOF READING A nurse was working in ER, during her shift, she see a patient who is having a fever of 101 degree F. The patient also has a open wound on his left leg, the wound is red, painful, swollen, and foul-smelling pus is showing signs of infection.

50. ## Math

A spider crawls at a speed of 1.17 miles per hour , at this rate how long will it take the spider to crawl 3/4 mile?

51. ## physics

jane hits a golf ball on a flat fairway. The ball leaves the ground at a 14.5 degree angle and lands 193 meters away. How long was the ball in the air? How fast was the ball moving when it left the ground?

52. ## physics

an image in a convex mirror is 12cm tall and 30cm from the mirror.IF the focal length is 50cm, where is the object and how tall. i got 7.5cm for the object height but a convex mirror always gives a reduced image?

53. ## math

the graph of a quadratic function has x-intercepts -1 and 3 and a range consisting of all numbers less than or equal to 4. Determine an expression for the function.

54. ## PHYSICS

an open tube is .86m long. Find the fundamental frequency and frequency of the next harmonic if the Temp=10deg celcius also if you closed one end of the tube what would the new fundamental frequency be?

55. ## Math

Find each product mentally using the distributive property show the steps that you used

56. ## Economics

GDP=375 Government spending increases by 50 Taxes increase by 50 MPC=.9 What is the new equilibrium GDP?

57. ## Finance Homework

If you deposit \$2,000 in a bank account that pays 9% interest annually, how much would be in your account after 14 years? Round your answer to the nearest cent.

58. ## physics

A stone A is dropped from rest down a well, and in 1 s another stone B is dropped from rest. Determine the distance between the stones another second later. The well is 80ft deep

59. ## physics

A jet starts of at a point A and is flying horizontally. And person is standing at a point B on the ground which is to the right of point A. When the jet is directly over the person, the person hears sound coming from point A. The average air temp is 20

60. ## physics

A spring balance has a scale that reads from 0to50 kg.The length of the scale is 20cm.A body suspended from this balance,when displaced & released, oscillates with period of 0.6 s.What is the weight of the body?

61. ## Calculus

A major corporation is building a 4325 acre complex of homes, offices, stores, schools, and churches in the rural community of Glen Cove. As a result of this development, the planners have estimated that Glen Clove's population (in thousands) t yr from now

62. ## Phy new

____​2.​An object is thrown vertically upward with a speed of 25 m/s. How much time passes before it comes back down at 15 m/s? (Air resistance is negligible.)

63. ## math

In an 8 inch square cake pan and a 10 inch square cake pan. what is the difference in volume each pan will hold. each pan is 1.5 inches high

64. ## physics

design an experiment that will allow you to determine the length of the soccer field from one set of goal posts to a single goal post at the other end of the field.you may only use one metre stick,and two retort stands.you are not permitted to walk onto

65. ## math

in a survey of 260 dancers: 172 knew the ballroom dances 145 knew latin dances 102 knew swing dances of these, 65 knew the ballroom and swing dances. 93 knew ballroom and latin dances 56 knew latin and swing dances 31 dancers indicated they knew all 3

66. ## science

2 waves are travelling through container one has apmlitude of 3 cm and other is 9 cm ?wich one is strong wave?

even though carbon dioxide puts out a burning splint it does not confirm the presence of the gas why?

even though carbon dioxide puts out a burning splint it does not confirm the presence of the gas why?

69. ## math

solve the following trig equation : 7 = 8sin(1/2)x. I can solve this using the half-angle indentity. But i need to solve this using period and phase change equation. how do i do this?

70. ## algebra

the weight (in kg) of each student in a group of students is 9 times his height (in feet) write a linear equation with x representing the height (in feet) and y representing the weight i kg of the student

71. ## English

Is the following sentence a transitive verb? The strawberries contained vitamin c?

72. ## ENGLISH (ESL)

A nurse was working in ER, during her shift, she see a please need proof reading . patient who is having fever of 101 degree F. The patient also has open wound on his left leg, the wound is red, painful, swollen, and foul-smelling pus is showing signs of

73. ## Calculus

Find the indicated limit given the following. lim_(x->a)f(x) = 8 lim_(x->a)(2f(x)) =

74. ## Calculus

Complete the table by computing f(x) at the given values of x. (Round your answers to three decimal places.) f(x) = 2x^2 - 7 x 6.9 6.99 6.999 7.001 7.01 7.1 Use these results to estimate the indicated limit (if it exists). (If an answer does not exist,

75. ## bay highschool

For each of following situations ,identify what creates on one of the forces that creates the motion described (there may be many) A. a flag flag back and forth at the top of a flagpole. B.a soccer ball is passed from one player to another C. a large piece

76. ## early childhood

how can Brain Development Research Influence Early Childhood Curriculum

77. ## physics

Brandy is made by distilling ethyl alcohol, which is done by boiling the alcohol until it turns into a gas. How much heat is required to completely distil 0.750 kg of ethyl alcohol?

78. ## understanding psychology

when physical energy has resulted in a response in a sense organ, it is clear that:

79. ## math

one million tickets are sold for a lottery in which a single prize will be awarded. (a) if you purchase one ticket, determine your odds against winning (b) if you purchase 10 tickets, determine your odds against winning

80. ## MATH

. Let p, q, and r be the following statements: p: Jamie is on the train. q: Sylvia is at the park. r: Nigel is in the car. Translate the following statement into English: (p ~q) r

81. ## math

a survvey of vegetable gardeners showed the following: 69 grew tomatoes 25 grew cucumbers 30 grew zucchini 18 grew both tomatoes and cucumbers 21 grew both tomatoes and zucchini 14 grew both cucumber and zucchini 12 grew all 3 12 had none of these 1. how

82. ## Finance

Corporate bonds issued by Johnson Corporation currently yield 8.5%. Municipal bonds of equal risk currently yield 6%. At what tax rate would an investor be indifferent between these two bonds? Round your answer to two decimal places. The answer I keep

83. ## science

why is high pressure so important in plant oil extraction

84. ## science

what are three challanges with managing non renewable resources

85. ## physics

a concave mirror of diameter 40m is used with a 6cm tall object placed 20 cm from it. Where is the image? Can you check my solution Radius(R)=20cm Distance object(do)=20cm (2/R)=(1/do)+(1/di) (1/di)=(2/R)-(1/do) why do they give you the object height i

86. ## physics

a concave mirror of diameter 40m is used with a 6cm tall object placed 20 cm from it. Where is the image? Can you check my solution Radius(R)=20cm Distance object(do)=20cm (2/R)=(1/do)+(1/di) (1/di)=(2/R)-(1/do) why do they give you the object height i

87. ## math

solve 0=(3^0.5)tan(x+(pi/6))+1 and find all general solutions

88. ## physics

Find the length of string and speed of wave in string if frequency of given wave is 850 hz and the wavelength is 0.26m? The string is in a tube that is closed at both ends. I found the speed using v=freqeuncy*wavelength. How do i find the length of the

89. ## Math

The sum of 14 and ricks age is 70

90. ## math

I am a 6 digit number my 8 is worth 8*1000 .one of my 4's is worth 40. The other is worth 1/10 as much.My 5 is worth 50,000.MY 3 is worth 3(100's).My other number is 1. What number am I?

91. ## Economics

GDP=500 Government spending decreases by 20 Taxes increase by 20 Investment decreases by 20 MPC=.8 What is the new equilibrium GDP?

92. ## Economics

GDP=500 Government spending decreases by 20 Taxes increase by 20 Investment decreases by 20 MPC=.8 What is the new equilibrium GDP?

93. ## English

Can any one help me on an essay about importance of education

94. ## english

What does the backdoor of Pichot’s symbolize for Grant? please write in paragraph form

95. ## Fraction

We solve fraction left to right or right to left. Eg. 3/4+1/5-4/4 I mean asked does we have to do addition first or subtraction.

96. ## Decimal division

2 /25 = .08 why we add 0 with decimal, in some questions we don't add 0. Plz explain .

97. ## Math

The perimeter of a rectangle is 160 inches the length exceeds the width by 72 inches. Find the length and width?

98. ## visual arts

how to make a theme about death and life?

99. ## Algebra

The function p(d)=1+d/33, gives the pressure in atmospheres (atm), at the depth d in the sea (d is in feet). Note that p(0)=1 atm, p(33)=2 and so on. Find the pressure at 40 feet? I am lost please help? Thanks!