# Rosie

Popular questions and responses by Rosie
1. ## calculus

Triangle ABC is given where m∠A=33°, a = 15 in., and the height, h, is 9 in. How many distinct triangles can be made with the given measurements? Explain your answer

2. ## Frequency

Calculate the relative frequency P(E) using the given information. 400 adults are polled and 320 of them support universal health care coverage. E is the event that an adult does not support universal health coverage. P(E)=?

3. ## physics

An initially stationary 15.0-kg crate of cheese wheels is pulled via a cable a distance d= 5.70m up a frictionless ramp to a height of h= 2.50m, where it stops. What is the potential energy of the crate after it is lifted? How much work is done during the

4. ## chemistry

the number of moles of oxygen gas needed to react with 4.0 moles mg is

5. ## physics

a metal spoon is placed in one of two indentical cups of hot coffee. Which cup will be cooler after a few minutes?

6. ## general chemistry

A student needs to determine by titration with NaOH the precise %KHP in an unknown sample that is thought to contain approximately 50%KHP. Approximately what mass of sample should the student use in order to use about 20mL of 0.1005 M NaOH to reach the

7. ## Physics

A 1.50 X 10^2g piece of brass(specific heat capacity 3.80 X 10^2 J(kgC) is submerged in 400 mL of water at 27.7 Degrees Celsius. What is the original temperature of the brass if the mixture has a temperature of 28.0 degrees Celsius

8. ## physics

A 2000 kg car is moving with a velocity of 50 km/hr. What is its kinetic energy? If the car reduces its speed by half, by what factor is the kinetic energy changed?

9. ## Science

Contrast mitochondria and chloroplasts. Please. Thanks.

10. ## physics

A 59 kg diver stands at the end of a 32 kg springboard, the spring board is 3 m long. The board is attached to a hinge at the left end, but simply rests on the right support which is half way along the board. What is the magnitude of the vertical force

11. ## Physical Science

So, please check my answers here: 1. Which example identifies a change in motion that produces acceleration? A) A speed skater moving at a constant speed on a straight track** B) A ball moving at constant speed around a circular track C) A particle moving

12. ## physics

A child pulls a wagon by the handle along a flat sidewalk. She exerts a force of 80.0 N at an angle of 30.0 above the horizontal while she moves the wagon 12 m forward. The force of friction on the wagon is 34 N. Calculate the mechanical work done by the

13. ## Physics

A man pushes a 50N box across a level floor at a constant speed of 2.0 m/s for 10 s. Whats the average power output by the man.

14. ## Chemistry

Calculate the molarity of Fe(NO3)3 in Solution A. Solution A: Mass of Fe(NO3)3 solid: 1.21g & Vol of Solution: 100mL In a previous ? Using the mass I weighed 404.0g/mol to calculate moles of Fe(NO3)3 in solid hydrate----I got 0.00300 mol Fe(NO3)3)

15. ## physics

A 15kg object is pushed to the right with a net force of 60N. If a 5kg object experiences the same acceleration, how much force is it being pushed with.

16. ## physical science

What are the distance and displacement of a race car that completes the Indy 500

17. ## Physics

Two dogs are pulling on opposite ends of a bone. One dog pulls to the right with a force of 50N while the other pulls to the left with a force of 40N. Are the forces balanced or unbalanced? How do you know? What is the net force on the bone? Would the

18. ## calculus

Solve the equation 2cos(x)+1=0,0≤x≤2π0≤x≤2π. Show all of your work.

19. ## physics

A block slides down a frictionless ramp. If the ramp angle is 22 degrees and the length of it is 25m. find the speed of the block as it reaches the end of the ramp, assuming it started sliding from rest at the top.

20. ## Probability

Calculate the (modeled) probability P(E) using the given information, assuming that all outcomes are equally likely. n(S) =8, n(E) =4

21. ## Technology, bro!

What is an AUP? A) A description of the words that an organization has for acceptable use of computer and internet. B)A document that tells the technology department how to handle the computers. C) A list of user names D) The directions for downloading and

22. ## Math

The 8th term of 40,10, 5/2, 5/8

23. ## physics

Jason takes off across level water on his jet-powered skis. The combined mass of Jason and skis is 75 kg (the mass of the fuel is negligible). The skis have a thrust of 200 N and a coefficient of kinetic friction on water of 0.1. Unfortunately, the skis

24. ## teacher aide

In the classroom, the reverse mainstreaming/inclusion technique is used A only with mildly retarded students B more often than the resource room for behavior disordered students C to place special needs students in the majority D effectively to teach math

25. ## geography

social, political, and economic changes made under the tokugawa shogunate

26. ## physics

A golf ball with a mass of 0.080kg initially at rest is given a speed of 50 m.s-1 when it is struck by a golf club. A) If the club and ball are in contact for 1.5 millisecond (0.0015 seconds), What average force acts on the ball? B) What impulse was

27. ## art history

Compare and contrast the art and sculpture of Meso-America and Africa. In your discussion, include the purposes for this art and sculpture.

28. ## Math

The air temperature decreases by about 1 degree Fahrenheit for each 300 feet of altitude. a) Find a function T(x) for the temperature at an altitude of x feet if the sea-level temperature is 45∘F. (b) Find T(1000). [Round to two decimals] I considered

29. ## art

what components in this painting creates an illusion of a line?

30. ## physics

a penny dropped from the Empire state building. how far does the penny drop in 6 seconds? how fast will it be moving after 10 seconds?

31. ## teacher aide

I need help! What information is included in the instructional guide that accompanies most audiovisual materials? A How to operate the projection equipment to show the materials B How to duplicate the audiovisual materials C A summary of description of the

32. ## Math

A wire 32 cm long is cut into two pieces. The longer piece is 2 cm longer than the shorter piece. Find the length of the shorter piece of wire

33. ## Instructional Materials: their preparation and use

Please help! If you want to project a microscope slide onto a screen, which machine would you use? A opaque projector B copy machine C bioscope D slide projector I think the answer is D I'm I right.

34. ## biology

In a population with two alleles, B and b, and the allele frequency of b is 0.4. Calculate the allele frequency of heterozygotes if the population is in Hardy–Weinberg equilibrium? Show your work. Thanks for any help in advance!

35. ## calculus

A state charges polluters an annual fee of \$20 per ton for each ton of pollutant emitted into the atmosphere, up to a maximum of 4,000 tons. No fees are charged for emissions beyond the 4,000-ton limit. Write a piecewise de nition of the fees F(x) charged

36. ## history

What caused the Roaring Twenties to come to a grinding halt? Analyze the events of the 1920s that contributed to the demise of the American economy, using economic, social and political variables. (This is an essay 1-3 pages,I am really behind in school

37. ## College Algebra HELP

Use the seven step method described in the book to graph the following rational function f(x)=(2x^2+x-3)/(2x^2-7x) 1) Determine the symmetry of the function 2) Find the y-intercept 3) Find the x-intercept 4) Find the vertical asymptotes 5) Find the

38. ## Calculus

A 6 feet tall man walks away from a streetlight that is 15 feet high at a rate of 5 ft/s. Express the length 's' of his shadow as a function of time. What I have so far: I set up a triangle and used similar triangles to create a ratio (6/s) = (s/d+s) s =

39. ## Physics

A skater of mass 60 kg takes a 20 m radius turn at 12 m/s. Find the skater's angle of lean (between body and vertical)

40. ## geography

how did the mongols conquests promote cultural diffusion

41. ## calculus

The fee per ton of pollution is given by A(x) = F(x)=x. Write a piecewise de nition of A(x). What is the limit of A(x) as x approaches 4,000 tons? As x approaches 8,000 tons?

42. ## Physics

A pitcher throws a fast ball with a speed of 45m/s. The ball has a mass of 0.145kg. How much a) kinetic energy is given to the ball and b)What work was done in throwing the ball? Vo=45 m/s Mass= 0.145kg A) KE? KE= 1/2mV^2 A) 1.5x10^2 kg*m/s B) WK=Change in

43. ## Physics

Jill and Traci are side by side in their cars at a red light. When the light changes, Jill takes off with an acceleration of 2.4m/sec^2. Traci waits 3 seconds and then takes off with an acceleration of 4m/sec^2. How long will it take her to catch Jill?

44. ## physics

How does air within winter clothing keep you warm on cold winter days?

45. ## Seven step method

Use the seven step method described in the book to graph the following rational function f(x)=(2x^2+x-3)/(2x^2-7x) 1) Determine the symmetry of the function 2) Find the y-intercept 3) Find the x-intercept 4) Find the vertical asymptotes 5) Find the

46. ## Math

2 part question 1) a cone shaped paper cup has a height of 7 inches and a diameter of 5 inches. What is the volume of the cone? Round answer to the nearest hundredth. 2) if we collect rainwater in the cup in question 1 until the waters depth is 6 inches,

47. ## Geometry-confused!

Find the length of a side of a rhombus whose diagonals measure 10 and 24?

48. ## future value for simple interest

a 5000 loan, taken now with a simple interest rate of 4% per year, will require a total repayment of 5400dllrs. After how many years t will the loan mature?

49. ## teacher aide

Public law 94-142 mandates that A schools must transport students to special sites for education B only certain states must provide special education programs C parents may not participate in a special needs child's education D every special needs child

50. ## Probability

Four coins are tossed. What is the probability of getting more tails than heads and getting at least two heads?

51. ## english

help i need to know if this sentence is parallel Neither the searing pain in my toe nor the blinding rain in my face will keep me from finishing the race.

52. ## Teacher

I'm having problems with this question. In a regular school, the mainstreaming\inclusion technique is A used only with visually impaired students B often impossible with behavior disordered students C frequently a positive experience for regular students D

53. ## Chem (monomers)

Hi I'm having major problems with monomers in proteins. One what is a monomer Two what is it doing in a protien? Much thanks, Rosie A "monomer" is a single unit of a polymer and a polymer is just a bunch of monomers (single units) hooked together. Teflon

54. ## physics

Doyle goes bowling with a cement brick to improve his score. If the brick has a mass of 1.5kg and an initial speed of 5.0m/s upon release a)how much kinetic energy did it possess upon release i.e. when let it go and b)how far will the brick slide before

55. ## Physics

A 0.025kg rubber stopper is swung in a horizontal circle by a 0.95 meter threat that makes 25 revolutions every 15 minutes. a) what is the stoppers speed? b) what is the acceleration? c) what is the value of the centripetal force?

56. ## english

Behaviours of dracula

57. ## chemistry

If 17.5 mL of 0.553 M KOH is needed to neutralize 25.0 mL of an HBr solution what is the molarity od HBr solution

58. ## algebra

factor the polynomial 3h^2+11h+6

59. ## english

What are some behaviours of Dracula? i have two so far: appears during the night leaves two punctures on his victims neck

60. ## english

How should i start to write a victimology about dracula

61. ## biology(really need help!)

What role does the lilac flower play in its natural ecosystem? What is its niche in the food web Are there any ecological issues surrounding the lilac flower(e.g. are its populations decreasing, is it spreading uncontrollably..)

62. ## chemistry

Complete the following reactions, where applicable. If no reaction occurs write N.R A) blank + blank ---> Cu(NO3)2 + PbSO4 B) C6H12O6 + O2 --> blank + blank C) AgNO3 + CuCI2 ---> blank + blank

63. ## english

if dracula is sucking the blood of his vistcms, would it be called homicide or what??

64. ## College Chemistry

Indicate the number of unpaired electrons present in Kr Atom...?

65. ## Probability

If the events A and B are disjoint, A Intersection B =0, P(B) = 0.17 and P(A U B)=0.55. Find P(A)

66. ## Probability

How many ordered lists are possible that contain five objects chosen from seven?

67. ## financial

If I want my rent in 4yrs to be 900dllrs. The owner of the apartment building told me that the rent will increase 3% every year compounded every year. What should be my rent today?

68. ## College Algebra! help!

Consider the following functions f(x)= (7x+8)/(x+3) and g(x)= (3x-8)/(7-x) (a) Find g(g(x)) (b) Find g(f(x)) (c) Determine whether the functions f and g are inverses of each other.

69. ## physics

A wagon is being pushed by a small child along a sidewalk. If the wagon has a mass of 8kg, a coefficient of friction of 0.3 and is accelerating at 0.2m/s what force is the child applying

70. ## Calculus

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be

71. ## Math

There are 24 hours in each day.there are 7 days in one week how many hours are there in a week?

72. ## English

What is the verb or verb phrase in the sentence: Her mother, Naomi, is a tax attorney with her own business.

73. ## Math

A marathon covers 26 miles and 385 yards. If a runner averages 1.8 meters per second, how long in hrs will it take to complete the marathon?

74. ## ALGEBRA

Create 2 equations to the following: How many hamburger buns and hot dog buns can I buy for \$20 if the hamburger buns cost \$2 a package and hot dog buns cost \$1.50 a package?

75. ## math

A Thai restaurant offers the curry special: curry vegetables with your choice of beef, chicken tofu or shrimp. Choose yellow curry, green curry or red curry. Drink included: tea or soda. If a customer makes all choices randomly, what is the probability

76. ## Organic biochemistry

How to draw the skeleton structure for diethylammonium bromide?

77. ## Probability

Four Coins are tossed. Describe the sample space S, probability of getting more tails than heads and probability of getting at least two heads.

78. ## Math

Liwanag sold 37 tickets to Manila Zoo. Adult tickets cost Php 3.50 and child tickets cost Php 1.25. She collected 73.25 from the sales of the tickets. How many of each kind were sold?

79. ## Math

Six years ago, Jim was four times as old as Fe. In four years, he would be twice as old as Fe. How old are they now?

80. ## numerical analysis

find the smallest positive root of the equation f(x)=2sinx+x-2=0 using the false positive method.

81. ## Compute

Compute the indicated quantity P(A probability B) = .1, P(B) = .5. Find P(A interception B).

82. ## Probability

Let A and B be two events with P(A interception B)= 0.2, P(B) =0.15, and P(A U B)= 0.75. Find P(A)

83. ## physics

A net force gives a 10th kg object an acceleration of 2.0m/s . If the same force were applied to a 20 kg object what would its acceleration be?

84. ## calculus

Given f(x) = x3, evaluate lim h->o f(a+h)-f(a)/h

85. ## us history

what question was resolved with the great compromise?

86. ## Math

The probability that Owen will score a goal in the next month is 0.4. The probability that Wasim will score a goal in the next month is 0.25. What's the probability that both boys will score and why?

87. ## Physics

Jason approaches a rotary in her 3,500kg Mercedes. Its radius of curvature 95m but his speed is 25m/s. The acceleration is 6.6 m/s^2. What is the coefficient friction between his tires and the road? I know Mu mg=mv^2/R but I am unable to complete my

88. ## geography

compare geography of japan and greece

89. ## math

Joe needed two boards measuring 1 foot 9 inches and 3 feet 5 inches to complete his project. He wanted to find a total of the amount of wood he would need to buy? How would I simplify this?

90. ## math

Name the shape. Plane shapes. It does not have 4 sides. all of it sides are equal. All of its angles are acute.

91. ## math (find my grade)

1% of my grade 82% 4% of my grade 76% 2% of my grade 100% 100% 100% 100% 100% 100% 100% 100% 82% could you please find my average. thank you!!!!

92. ## geometric sequences

given the geometric sequences:9 90/17, 900/289 find an explicit formula for an, where the first term is a1=9 an= a10=

93. ## geography

how geography affects the way of life in japan

94. ## Probability

How many unordered sets are possible that contain four objects chosen from thirteen?

95. ## Math

A company charges \$42 per cubic yard of concrete. How much will it cost to pour a sidewalk that is 45 inches wide, 70 feet long, and 4 inches deep?

96. ## Physics

Kati observes a force of 15 Newtons stretch a spring a distance of 0.450m. a) what is the elasticity coefficient of the spring and b) how much force must be done to stretch the spring a distance of 0.750m? a) F=Kx 15=K(0.450) 15/0.450=k 33N=k It seems off

97. ## Physics

Eli went for his driving test in an ice storm. He told the registry tester not to worry. He can negotiate an exit ramp at 35 km/hr that has a radius of curvature of 95m. a) What was his speed in meter/second? b)Find required angle for his banked curve to

98. ## Chemistry

How much energy in kJ is needed to heat 7.0L of water from35 degrees Fahrenheit to boiling point 100 degrees Celsius. If the density of water is 1.0g/cm^3 and the heat capacity of water is Cp= 4.184J/g degrees Celsius

99. ## Math

Randolph runs a home appliance repair business and charges a service call fee of \$85 plus \$15 per half hour for his labour. Write an equation for calculating the total charges, C, in terms of hours of labour, H. Plot the graph of C vs. H and define the