# eric

Newest questions and responses by eric
1. ## Further mathematics

Find the first bank term of a linear sequence is 3 and the 8th term is 3.1.find the common difference

2. ## Physics

Determine the indicator horse power and piston displacement of a machine of the piston area 100m^2 given the piston stroke to be 600cm and indicating mean pressure to be 500kg/m^2. The number of piston stroke per minute is 4

3. ## Physics

A man using 80kg garden tractor on a level surface exert a force of 50N at 65^0 to the ground. Find the vertical force of the garden tractor on the ground

4. ## Law

The tort law in America started with the concept of a. Assault b. Battery c. Trespass^^^ d. Murder Is C correct?

5. ## French

I am wondering how to say bored in French, google translate says ennuyé, but that is wrong, ennuyé means more bothered. Does anyone have better translation?

6. ## Math(Algebra)

My question is, “  A line with slope 3/2 that passes through the point (-2,0)” I have to find an equation. Can someone give me a rough explanation of how to do this, so i can figure this out? Thanks!

7. ## science

Which of the following gases was most likely present in Earth's earliest atmosphere? a. nitrogen b.hydrogen c.argon d.oxygen Help me please!

8. ## Literacy

Does anyone know books with themes of ignorance? I have only found Fahrenheit 451.

9. ## math

Let the sets S = {(n, m) ∈ N × N: n + m = 10} and π1 (S) = {n: there exists m ∈ N such that (n, m) ∈ S}. (Note that π1 (S) ⊆ N.) (a) Show that 8 ∈ π1 (S) and give an example of an element x such that x ∈ N ∖ π1 (S). (b) Show that π1 (S)

10. ## maths

eric scored 82 ,74,and 90 in three test . what mark should she score in the fourth test , so that her average mark for the fourth test would be 85

11. ## Pre-Algebra/Algebra

In an y=my+b equation what is y?

12. ## math

which is the greater length,2 yards or 5 feet

I was just wondering what the tone of the lines, “Your breath moves through the family like the wind moves through the trees“ at the end of the poem “A Voice“. Thanks!

14. ## Physics

When an object is moving at a normal speed, is it's weight larger than when it's stationary?

15. ## Math

The new facility is the square in shape the link of one of the walls is 20 feet how many square feet is the facility

16. ## Statistics

The mean score on a test was 280 and the standard deviation was 20. You want to pick the top 15%. What will be the minimum cutoff score to be in the top 15%?

17. ## Math

If you are dealt 2 cards from a standard deck of 52 cards what is the probability that they will both be aces? Give answers as decimal to 5 decimal places not percent.

18. ## math

The mean score on a test was 280 and the standard deviation was 20. You want to pick the top 15%. What will be the minimum cutoff score to be in the top 15%?

19. ## Math

You survey 1000 new home buyers and find that the mean price was \$185,000 and the standard deviation was \$20,000. How many paid more than \$210,000?

20. ## physics

a) find the total force on the bottom of a cylinder gasoline storage tank 15.0 m high with radius 23.0 m. b) find the total force on the side of a tank.

21. ## Math

The 3rd and 7th terms of an A.P are -1 and 11 respectively. Fine the nth term and the numbers of which must be added to get a sum of 430

22. ## Combinatorics

The game is euchre which uses a 24 card deck (Ace through 9). The dealer picks up the King of diamonds, names diamonds trump, and discards the King of hearts. Dealer holds the K-10-9 diamonds, Ace spades, and 9 of clubs. Q1. What is the probability that

23. ## Algebra

Let f(x)=8 (3)^ x−2 +2 .  The graph of f(x) is stretched vertically by a factor of 3 to form the graph of g(x) .  What is the equation of  g(x) ?   g(x) =

24. ## Algebra

21. simplify (2sqrt5+3sqrt7)^2 show your work. Been confused on it for a while.

25. ## Statistic

At peak periods 15 of attempted logins to an email service fail. log-in attempts are independent and each has the name probability of failing. Ann logs in repeatedly until she succeeds A. Find the probability that Ann needs to log in atleast four times

26. ## Statistic

At peak periods, 15% of attempted log-ins to an email service fail. Log-ins attempts are independent and each has the same probability of failing. Ann logs in repeatedly until she succeeds. A. find the probability that Ann needs to log in at least four

27. ## Science

What is the mechanical advantage of a machine that used 600N to overcome a load of 1200

28. ## Math

Kayla has 3 yards of ribbon. She wants to cut the ribbon into pieces that are 1/4 yard long. How many pieces of ribbon will Kayla have

29. ## Chemistry

Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure, except only a single titration was performed which required 16.22 mL of 0.100 M Na2S2O3. The density of the original, undiluted bleach unknown was

30. ## Chemistry

Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure, except only a single titration was performed which required 16.22 mL of 0.100 M Na2S2O3. The density of the original, undiluted bleach unknown was

31. ## algebra

Want to make sure I am doing this correctly. Use the Intermediate Value Theorem for polynomials to show that the polynomial function f(x)has zero between the numbers given. f(x)=3x^2-x-4 ; 1 and 2 3(1)^2-1-4= - 2 below zero 3(2)^2-1-4= 6 above zero Am I

32. ## Chemistry 2

The molar heat of solution of ammonia is −30.50 kJ/mol. What happens to the temperature of water when ammonia is added to it? I simply don't know how to answer this and wouldn't ask otherwise. I would be very grateful for assistance.

33. ## Algebra

I have answered the question but not sure how to check for extraneous solution. x/(5x+4)=3 The answer is -6/7

34. ## Physics

A circus cat has been trained to leap off a 12-m-high platform and land on a pillow. The cat leaps off at v0 = 3.6 m/s and an angle θ = 37°

35. ## Algebra

Need help figuring this problem out. The following points are on the graph of: y=f(x) (-5,0),(-2,2),(0,0),(2,-4) and (4,0) Use theorem to identify the corresponding points on the transformed functions. y = 2f(x-3)-2

36. ## statistics

The closing price of Schnur Sporting Goods Incv. common stock is uniformly distributed between \$20 and \$30 per share. Draw the uniform distribution. What are the height and base?

37. ## Pre Cal

Write an expanded polynomial equation based on the following information. A cubic function with a zero at x=3 (with multiplicity 2), a zero at x=2, and a constance term of 18.

38. ## Math

Sam is hoisting an engine form a pickup truck he is fixing. He hands hoist using 3 rafters on ceiling. Measures the angle the hoist makes at the baseto be 85 degrees and the length across the of chain across rafters to be 80 inches. One length of chain

39. ## Science

why does all the information available state that the maximum amount of table salt that can dissolve in water is: 36-39 g/100 ml @ 20 degrees Celsius. i put 35.7 g in 100 ml over a week ago, check it 3 times daily and a lot of it never dissolved. the water

40. ## statistics

Scores on the GRE​ (Graduate Record​ Examination) are normally distributed with a mean of 541 and a standard deviation of 101. Use the 68-95-99.7 Rule to find the percentage of people taking the test who score between 238 and 844 The percentage of

41. ## Math

How many inches represent 1 mile. Help 3/10 in = 7/8 mile

42. ## Math

I have to find the Unit Price of 64 fl oz = \$2.00 I have concluded that 2 / 64 is the answer but I think there is an easier way to show it please help

43. ## Math

What is the result of converting 1500 yards into miles?

44. ## Calculus

Evaluate the definite integral (low) (high) -π/6 ∫ π/6 2sec(x)tan(x) dx

45. ## Calculus

Find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. f(x) = 4√x [4, 9]

46. ## Calc

Find the critical numbers of the functions. f(0) = 2sec0 +tan0 on the interval [0,2pi]

47. ## Math

Simplify (Log75+log9+log5)÷(log5+log45)

48. ## math

The ratio of two numbers is 3:5, the smallest number is 45 what is the larger number?

49. ## social studis

In this lesson, you learned that government officials represent citizens at the state and local levels as well as at the national level.

50. ## math

in which stem do most of the data fall 1 ,2 3, or 4

51. ## Math

in which system do most of the data fall 1 ,2 3, or 4. plzzzzz help me

52. ## art

this piece of art primarily represents art that

53. ## PE

How does esteem affect the way you behave?

54. ## Physics

A batted baseball leaves the bat with a velocity of 41.4 m/s at an angle of 51.2°. If the ball just barely clears the 3.05 m (10 ft) center field wall, a. How long was the ball in the air? ___s b. What must the range be from home plate to the center field

55. ## Physics

Physics teacher has this question for hw. 38. An electric powered model car starts from rest and moves in a straight-line for 4.0 s. The relationship between time and position is x^2+ 2 t^2 = 32, t in seconds and x in cm. Find the velocity at t= 1 s & t =

56. ## Chemistry

When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 26.4 g of carbon were burned in the presence of 82.1 g of oxygen, 11.7 g of oxygen remained unreacted. What mass of carbon dioxide was produced? Express your answer to one

57. ## Educational Technology and Online Learning

what is the purpose of the introduction in an expository essay

58. ## Math

Whats the function rule when inputs 2,3,4,5 and outputs 2,5,8,11?

59. ## Maths

Ruby has 20 oranges. she eats 3/5 of the oranges. How many oranges did she eat

60. ## Maths

how to solve 150 pupils went to concert.3/4 of the number of boys was equal to 1/7 of the number of girls. how many boys went to the concert?

61. ## Geometry

A vertical pole 24ft. high is to be braced securely by four wires attached 8ft. from the top. If the wires are fastened to stakes in the level ground at the vertices of square with its center at the foot of the pole and sides 20ft., what should be the

62. ## Chemisty

Will Cd(OH)2 precipitate if 10.00 g of Cd(NO3)2(s) (MM = 236.42 g/mol) is added to 0.500 L of a 0.800 M NH3 solution?

63. ## Math

The large rectangle shown, is composed of five congruent smaller rectangles, each with whole number dimensions. If the perimeter of each smaller rectangle is 20 com, find the are of the entire large rectangle in sq cm.

64. ## Physic

A large concave mirror has radius of 6.32m. To magnify an object 1.25m tall by a factor of +2.5 Must the object be placed Will the image appear to be Describe the image 3 things What is the image height

65. ## Physic

A large concave mirror has radius of 6.32m. To magnify an object 1.25m tall by a factor of +2.5

66. ## Chemistry

Using the equation: 2C2H6 + 7O2--> 4CO2 + 6H20 How many moles of CO2 are produced by the reaction of 21.0 mol O2? Again, not sure how to write it correctly, but if I multiply 7O2 by 3, then I should do the same to the other side of the equation to make it

67. ## Chemistry

Using the equation: 2C2H6 + 7O2--> 4CO2 + 6H20 How may moles of 02 are needed to react with 4.0 mol of C2H6? I think the answer is 14, because if you double the C2H6 to make 4.0 mol, then in the equation you will need to double the O2 to 14. Is this

68. ## math

A number plus itself, plus twice itself, plus 4 times itself, is equal to -104. What is the number?

69. ## math

A pair of dice is rolled.What is the probability that the sum of the pips is either an even number on a multiple of 3? total number of space is 36.

70. ## Math

An enclosed rectangular garden is 6 meters by 15 meters. Additional fencing within the garden can divide it into three smaller plots, two of them square and one rectangular. What is the least number of meters of additional fencing that is needed?

71. ## Algebra

Tell whether the lines for each pair of equations are parallel perpendicular of neither y=-3x+7 -2x+6y=3 Tell whether the lines for each pair of equations are parallel perpendicular of neither y=(-1/5)x=6 -2x+10y=5

72. ## Algebra (Urgent)

Which of the following lines are perpendicular to the line y=-1/4x+6 (you may choose more than one answer) 4x-y=2 y=4x 4x+y=6 1/4x-y=6 -4x+y=3

73. ## Physics

Three positive point charges are located at the corners of a rectangle. Find the electric field at the fourth corner if q1 = 5 nC, q2 = 6 nC, and q3 = 7 nC. The distances are d1 = 0.6 m and d2 = 0.2 m. (Let the positive x-direction be to the right, and the

74. ## Physics

In the bloodstream, an erythrocyte (red blood cell) of mass m moves with velocity v to the right. Ir collides head-on with a leukocyte (white blood cell) of twice its mass moving to the left with three times its speed. After the collision, the became stuck

75. ## Physics

A spring with k=1400N/m is firmly anchored to the bottom of a swimming pool. A diver in full SCUBA gear with total mass of 100kg and density of 0.65g/cm3 holds on to the top of the spring. The system reaches a new static equilibrium. After the print is

76. ## Physics

Imagine a horizontal spring with an elastic constant of 26.5 N/m, held in place just above an air table. If a 2.00 kg mass traveling at 1.50 m/s slams axially into the end of the spring, by how much will it be compressed in bringing the mass to rest?

77. ## Introduction to computers

You call the help desk to report a problem you are having on your computer. The technician asks you what operation system you are running. You know it is windows 7 but you forgot which version . How can you find out.

78. ## Introduction to computers

Which Microsoft operating system started the process of authenticating users with a username and password

79. ## Introduction to computers

The command prompt found on Windows 7 and Windows 8 is very similar to the interface of what past operation system.

80. ## Chemistry

Is nickel 2 chloride an anion or cation ?? Is sodium chloride an anion or cation ?

81. ## physics 11

A swimmer swims perpendicular to the bank of a 20.0 m wide river at a velocity of 1.3 m/s. Suppose the river has a current of 2.7 m/s [W]. (a) How long does it take the swimmer to reach the other shore? (b) How far downstream does the swimmer land from his

82. ## math

From cape to home is 500km I drive from Home at a 100km/h how long will it take in hours

83. ## Algebra 2

Solve the following sequence systems algebraic ally x+2y=17 x-y=2

84. ## Algebra 2

Create an explicit equation for each recursively defined sequence below a1=17,an+1=an-7

x-3/x=3/5

86. ## physics

While John is traveling along a straight interstate highway, he notices that the mile marker reads 256 km. John travels until he reaches the 144 km marker and then retraces his path to the 173 km marker. What is John’s resultant displacement from the 256

87. ## Algebra 2

Solve each system 3x-9y=3 and 2x=16-y

88. ## Algebra 2

Solve each system 6x-2y=10 and 3x-2=y

89. ## Algebra 2

For the function f(x)=square root 3x-2 find the value of the expression below. What value of x makes f(x)=6

90. ## Kitondo boys

A triangle has vertices X(2,2) ,Y(4,2)and Z(3,4).The triangle is enlarged by a scale factor 2 through the origin.What are the coordinates of the image?

91. ## Physics

Basically... distance is 4 km Takes 4 min to go down river Takes 6 min to come up How fast is the river?

92. ## Statistics/probability

You are considering two mutual funds for your investment. The possible returns for the funds are dependent on the state of the economy and are given in the accompanying table. State of the Economy Fund A Fund B Good 20% 40% Fair 10% 20% Poor -10% -40% You

93. ## Physics-Trajectory

A particle's trajectory is described by x =(12t3−2t2)m and y =(12t2−2t)m, where t is in s. What is the particle's speed at t=0s ? What is the particle's speed at t=5.0s ? Express your answer using two significant figures. What is the particle's

94. ## Physics

Three forces are exerted on an object placed on a tilted floor. Forces are vectors. The three forces are directed as shown in the figure. If the forces have magnitudes F1 = 2.0 N, F2 = 17.0 N and F3 = 15.0 N, where N is the standard unit of force, what is

95. ## Physics

The components of vector A⃗ are Ax = + 3.90 and Ay = -4.00. What is the angle measured counterclockwise from the +x-axis to vector A⃗ ?

96. ## Physics-VECTORS

Find the vector's magnitude and direction. Part A A⃗ = 4 i^− 8 j^ A =? θA =?

97. ## Physics

A rocket-powered hockey puck moves on a horizontal frictionless table. The figure below shows the graphs of vx and vy, the x- and y-components of the puck’s velocity. The puck starts at the origin. The graph of the X-velocity is v=8t cm/s and the

98. ## Chemistry

a) Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 degrees Celcius, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 13.8 g of biphenyl in 32 g