1. heeeeeeeeeeeeeelp maths

How many integers 1≤N≤1000 can be written both as the sum of 26 consecutive integers and as the sum of 13 consecutive integers?

2. Physics

Four equal +6.00-μC point charges are placed at the corners of a square 2.00 m on each side. ( = 1/4π = 8.99 × 109 N · m2/C2) (a) What is the electric potential (relative to infinity) due to these charges at the center of this square?

3. Physics

Starting from rest, a skier slides 100 m down a 28 degree slope.How much longer does the run take if the coefficient of kinetic friction is 0.17 instead of 0?

4. statistical probability411

Please help. I didn't get the right answer with this question before: Your English teacher has decided to randomly assign poems for the class to read. The syllabus includes 4 poems by Shakespeare, 5 poems by Coleridge, 2 poems by Tennyson, and 2 poems by

5. MATH

1 My Math problem Intergers 2-(-2) = -4 iS -4 CORRECT 2.Between noon and 3pm, temp dropped 9 degrees (f). It increased 4 degrees (f) between 39m & 5pm and dropped 15 degrees(F) between 5om and midnight.If the temperature was -2 degrees (f) at midnight,

6. Statistics

The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) x 10 11 12 13 14 P(x) 0.37 0.09 0.05 0.14 0.35 (a) Find

7. Math

Gerald can complete a math assignment in 2 hours and a physics assignment in 1 hour. If he has 8 hours to complete a set of assignments, how many math assignments can he complete if he decides to leave the science assignments for the next day? This

8. econ

Suppose the reserve requirement ratio is 20 percent. Assuming no bank holds excess reserves and nobody withdraws cash, a \$10,000 injection of new excess reserves by the Fed can create A) \$2,000 in new checkable deposits B) \$10,000 in new checkable deposits

9. Algebra

If Don Gecewicz invests \$5000 at 9% interest compounded quarterly, find the amount after 4 years.

10. trig

A security camera needs to be set so that the angle of view includes the area from a doorway to the edge of a parking lot.The doorway is 16m from the camera. the edge of the parking lot is 24m for the camera. the doorway is 28m from the edge of the parking

11. Statistics

Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed. (b)

12. Eng

Which of the following sentences is correctly punctuated? A. the company held it's annual party at the convention center. B. Mr. Jones visited the YMCA before becoming a member. C. Mary remembered to buy milk. didn't she? D. The local police asked the

13. social studies

Ben's family purchased a dishwasher so that the family members could save time for more productive activities. what kind of production factor is this?

14. Chemistry

Cyclohexane has a freezing point of 6.6 degree Celsius and a K(f) of 20.0 degree Celsius/m. 1.50g of an unknown solute is dissolved wth 18.0g of cyclohexane. The freezing point of the solution was 1.3 degree Celsius Using this iInformation assuming the

15. Chemistry

What mass of N2O5 will result from the reaction of 6.0 mol of NO2 if there is a 61.2% yield in the reaction?

16. Math

resolve the vector v=[7, 9] into rectangular components, one of which is in the direction of [6, 2]

17. Statistics

Test the following function to determine whether it is a probability function. If it is not, then make it into a probability function. (Give your answers correct to one decimal place.) R(x) = 0.2, for x = 0, 1, 2, 3, 4 (a) List the distribution of

18. Math

Explain It Emily said the larger an object is, the more it weighs. Is Emily correct? Explain why or why not.

19. Statistical probability411

Please help. I didn't get the right answer with this before. A mathematics journal has accepted 14 articles for publication. However, due to budget restraints, only 7 articles can be published this month. How many specific ways can the journal editor

20. Maths

If is a n acute angle and tanx=3 4 evaluate cosx-sinx cosx+sinx

21. Physics

A body of mass 25kg, moving at 3m/s on a rough horizontal floor is brought to after sliding through a distance of 2.5m on the floor. Calculate the coefficient of sliding friction.

22. Math

In triangle ABC, points D,E,F are on sides BC,CA,AB respectively such that AD,BE,CF are angle bisectors of triangle ABC. The lines AD,BE,CF are concurrent at I, the incenter of triangle ABC. If ∠BAC=92∘, what is the measure (in degrees) of ∠EIF?

23. math

Amir's class has 24 students. There are 15 boys in the class. Whitch of the following represents the ratio of girls to boys?

24. chemistry

the concentration of urea in a solution prepared by dissolving 16g of urea in 39 g of H2O is ________% by mass. The molar mass of urea is 60.0 g/mol

25. math

You want to put \$4,000 in a simple interest account. It has a 2.5% annual interest rate. How long will it take you to earn \$500 in interest?

26. physics

Consider a horizontal road with such a set of traffic lights, each spaced 100 m apart. A car sits at the first traffic light. At t=0 the light turns green and the car accelerates. What is the maximum time t in secondsthe next light must turn green

27. algebra 2

two resistors are connected in parallel. their resistances are 8 ohms and 17ohms. what is the resistance of the combonation.

28. Physics

A box weighting 200N is pushed on a horizontal floor. What acceleration will result if a horizontal force of 100N is applied to the box.? coefficient of friction is 0.4

29. math

The length a spring stretches is directly proportional to the force applied. If a force of x pounds stretches a spring h inches, how much force is necessary to stretch the same spring m inches? (Assume x = 7, h = 4, and m = 15.)

30. Math

Suppose an equation that describes the path of a diver when diving off a platform is d = -5t^2 + 10t + 20. Where d is the distance above the water in (feet) and t is the time from the beginning of the dive(seconds). After how many seconds is the diver 25

31. math

write 2y^3 without exponents

32. Statistics

The survival rate during a risky operation for patients with no other hope of survival is 87%. What is the probability that exactly four of the next five patients survive this operation? (Give your answer correct to three decimal places.)

33. Chemistry

If 1.62 mold of CS2 burns with 5.65 mol of O2, how many moles of the excess reactant will still be present when the reaction is over? the chemical equation is CS2+3O2=2SO2+CO2

34. English

Rewrite all of the following sentences so they are in the active voice. Some sentences could contain more than one passive verb; correct them all. 1. After a contentious debate, it was decided that the board members would take a 15-minute recess. 2.

35. Biology

What is the defferent of prokaryotic and eukaryotic cells

36. information technology

which wireless protocols is limited to operating in the 5GHz range only

37. Trigonometry

There are four complex fourth roots to the number 4−4√3i. These can be expressed in polar form as z1=r1(cosθ1+isinθ1) z2=r2(cosθ2+isinθ2) z3=r3(cosθ3+isinθ3) z4=r4(cosθ4+isinθ4), where ri is a real number and 0∘≤θi

38. Math

If you roll a die 48 times and 8 of the rolls result in a "5," what empirical probability was observed for the event "5"? (Give your answer correct to three decimal places.)

39. Chemistry--DrBob222

Estimate the number of moles of gas (and mass of gas assuming that it is all N2) inside your family car (or a friends if you don't have one). If the amount of gas was compressed at constant temperature to fit inside a coke can what ould the pressure inside

40. math

write 2y^3 without exponents

41. Statistics

Consider the following. (a) What percentage of a normal distribution is greater than the mean? (Give your answer correct to the nearest percent.) Incorrect: Your answer is incorrect. . % (b) What percentage is within 1 standard deviation of the mean? (Give

A 2.0 kg ball moving with a speed of 3.0 m/!@#\$%^&s, elastically, an identical stationary ball as shown. If the first ball moves away with angle 30° to the original path, determine the speed of the first ball after the collision. the speed and direction

43. Chemistry

Assume you are starting with a 10x solution. how would you make it a 7.5x dilution?

44. algebra

Graph function using the techinique of shifting, compressing, strecthing and /or reflecting f(x)=5(x+4)^2+1

45. geomerty

A manufacturer made a container that looked like the Washington Monument to fill with raisins, as shown. Find the volume of the container the base is 2 in and 2 in the height is 5 in then the triagle is 2 in. There is a line between the h 5 and the 2

46. geometry

I need to find the base, height, and volume of a triangu;ar prism. the front is 8 cm and the side bottom line is 19 cm

47. Chemistry

What is the volume of HCl stock (37%) you must add in order to make up a 10.0% diluted HCl solution, if the final volume to be achieved is 600mL?

48. physics, thermo

calculate the heat required to produce 1.7 kg of wet steam at 2000 kpa from water at 160 degrees celsius and a dryness fraction of 81%, answer in kj.

49. Maths

If is a n acute angle and tanx=3 4 evaluate cosx-sinx cosx+sinx

50. Mathematics

Let x,y,z be non-negative real numbers satisfying the condition x+y+z=1. The maximum possible value of x^3y^3+y^3z^3+z^3x^3 has the form a/b where a and b are positive, coprime integers. What is the value of a+b?

asked by hope any one can help
51. statistics

My mean is 175.5 My standard deviation is=90.57 Sample=25 Formula to be used: P(X>190)=P((X-mean)/s sqrt of my sample is = 5 (Which is the square root of 25.) (190-175.5) / 90.57/5) 14.5/18.114 calculator says 0.8004858120790548746825659710721 I check the

52. Science

80.00 kg man catches a puck moving at 20 m/s, man is initially at rest. Man and puck move together after collision. The pucks mass is 0.16 kg, what is the final velocity?

53. science

Should humans be concerned with the extinction rate? And discuss whether or not humans strive to preserve representative samples of all biomes on the planet.

54. Chem

The molar weight of MgSO4 is 120.366gmol-1. What is the mass/volume percentage of a 2.5M water solution of MgSO4?

55. physics

A homogeneous ball with mass m=1 g and total charge q=10^−3 C (uniformly distributed) is placed on a horizontal xy plane. The balls starts rolling without slipping under the influence of a uniform electrostatic field E(vector) =(E,0,0) with E=1 V/m. Find

56. Maths

If is a n acute angle and tanx=3 4 evaluate cosx-sinx cosx+sinx

57. algebra

Graph the following function using the technique of shifting, compressing, strecthing and/or reflecting Find domain and range of the function g(x)=2sqrtx-3+7 domain=___ (interval notation) range=_____ (interval notation)

58. Maths

If is a n acute angle and tanx=3 4 evaluate cosx-sinx cosx+sinx

59. geometry

A manufacturer made a container that looked like the Washington Monument to fill with raisins, as shown. Find the volume of the container. The base has the front and sides as 2 and 2 inches the height is 5 in and the 2 inches.

60. Mathematics

Find the number of pairs of non-negative integers (n,m), such that 1≤n

asked by hope any one can help
61. Statistics

Consider the probability function. (Give your answers exactly.) P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. (b) Find the standard deviation.

62. statistics

Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends

63. math

Calvin's River Crossing Attempt 180 points Calvin is playing a game of Dungeons and Dragons. In order to make it across the river, he needs to throw six 4-sided dice, and have their sum be a multiple of 5. How many different dice throws result in Calvin

64. Maths

Pipe A takes twice the time to fill up the pool as pipe B does.The pool can be filled up in 2 h when both pipes are opened How long will it take each pipe to fill it up alone Plz slove it in Linear equation

65. Statistics

Suppose a box of marbles contains equal numbers of red marbles and yellow marbles but twice as many green marbles as red marbles. Draw one marble from the box and observe its color. Assign probabilities to the elements in the sample space. (Give your

66. Introduction of Psychology

Mr. Lunn's class is walking down the hall using walking feeet. This is an example of an: a.permissive disicipline b.an awareness of registers c.rule bonding d.altruism

67. Trigonometry

Given that sin(2θ)=2/3, the value of sin^6θ+cos^6θ can be written as a/b with a and b as coprime positive integers. Find a+b.

68. theology

there are no variations within the catholic liturgy. all liturgy is identical worldwide. true or false?

69. Eng

What is the simple predicate of the following sentence? The Saturn rocket made travel to the moon possible. A. Possible B. Moon C. Travel D. Made Answer is C

70. econ

Congress' control over the Fed is a. substantial because it can cut off necessary appropriations b. limited because the Fed is not dependent on Congress for the funds to support its operations c. substantial because the members of the Board of Governors

71. social studies

how does a society answer the three economic questions about the production and consumption of goods and services?

72. English

Rewrite all of the following sentences so they are in the active voice. Some sentences could contain more than one passive verb; correct them all. Convicted murderer Jonathan Walters was walked to the electric chair at 5 a.m. in the company of the warden.

73. algebra

For the given functions f and g, find the following and state the domain of each result f(x)=sqrtx;g(x)=3x-2 a) (f times g)(x)=___ What is the domain of f times g? b) (f/g)(x)=____ what is the domain of f/g?

74. algebra

For the given functions f and g, find the following and state the domain of each result f(x)=sqrtx;g(x)=3x-2 a) (f times g)(x)=___ What is the domain of f times g? b) (f/g)(x)=____ what is the domain of f/g?

75. algebra

Find the average rate of change of f(x)=-3x^2+1: a) From 1 to 3____ b) From 3 to 5____ c) From 1 to 4______

76. Eng

In the sentence "I want to sleep when I'm tired," the words "to sleep" are a/an A. indirect object. B. predicate adjective. C. prepositional phrase. D. infinitive phrase. Answer is D

77. science

A chemical reaction in which to or more substance undergo a chemical union to form more complex substance is a what reaction?

78. Mathematics

Given the set of integers {1,2,3,…,801}, what is the maximum number of sets we could distribute these numbers into such that the sum of each set is exactly the same?

asked by hope any one can help
79. chemistry

diffusion helps detecting leakages in cylinders or gas stoves

80. Maths

Iam stuck with this question including negative sign. Please I need help. Determine the magnitude and direction of this vectors (a) -8i + 6j (b) -5i - 12j

81. Maths

Iam stuck with this question including negative sign. Please I need help. Determine the magnitude and direction of this vectors (a) -8i + 6j (b) -5i - 12j

82. maths

State the coordinates of a point whose position vector is as follows: (a) -4i + 8j (b) 6i - 7j

83. math

Jack has 222 lego cubes, each of side length 1. He puts them together to form a rectangular prism. If the perimeter of the base of the prism is 10, what is the height of the prism?

84. math

A sphere of radius 32√ is tangent to the edges AB, AD, AA1, and the face diagonal CD1 of the cube ABCDA1B1C1D1. The volume of the cube can be written as a+bc√, where a, b are integers and c is a square-free positive integer. What is the value of a+b+c?

85. life orientation

5 ways in wich the human or environmental problem impacts on the community

86. intermediate algebra

The Burbank Buy More store is going to make an order which will include at the most 60 refrigerators. What is the maximum number of TVs which could also be delivered on the same 18- wheeler? Describe the restrictions this would add to the original graph. I

1. The atmosphere of Earth is an example of a ______solution.(1point) liquid-liquid gas-liquid gas-gas** solid-liquid Am I correct?

88. life orientation

provide recommendations on how to address the topic that you identify in the previous question

89. Physics

Two ends of the narrow coil are connected to the terminals of an oscilloscope. The solenoid, which was orginally 40cm long is rapidly extended to 140cm long in 50ms. Assume the solenoid is pulled at uniform speed at both ends.. B=3.02*10-3 T magnetic flux

90. medical coding

what is the icd9 procedure for suture repair with layered closure of the hand 4.0cm

91. factroing monomials

5x^2-15 if you factor it it equals 5(x^2-3) right?

92. Eng

Which one of the following statements is an example of a complex sentence? A. Neap tide is the best time for digging clams. B. Sparrows as the bird feeder compete for seeds. C. The earth was spinning when Lucas firs saw Lucille. D. The crescent moon is a

93. life orientation

ways in which one can take responsibility to provide a healthy and safe environment

My word problem after receiving her paycheck, Shane gave \$15 to her brother and bought a sweatshirt for \$`8. Sh put half of the remaining money into her savings account. If she \$46 eft, what was the amount of her paycheck. Answer \$107

95. life orientation

describe the lifestyle disease (cancer) or behaviour and also mention 5 factors that contribute to the disease

96. maths

5x^(3)+ 6x^(2)+8 =(Ax+1)(x-2)(x+B)+x-5C

97. algebra

10y-6=12

As a small business owner operating from home, Give major examples to your Board of Revenue to avoid tax payment.

99. Biologyyy

Please can someone give me an interessting title for a project on hepatitus c

100. algeba

1 1/2x-4 2/3=11/6 not sure on how to put fractions in on the computer.

101. math

if you had 250 in your account, then deposited x dollars in the account, How do you write a expression that shows the new balance? a) 250-x, b) 250x c) x+250 d) 250/x

102. Math

Can you show and easy way to show this formula in the form of an equation Example: a = b × r/100

103. math

f=795.8 c=0.o10 what is l

104. physics..

Two ends of the narrow coil are connected to the terminals of an oscilloscope. The solenoid, which was orginally 40cm long is rapidly extended to 140cm long in 50ms. Assume the solenoid is pulled at uniform speed at both ends.. B=3.02*10-3 T magnetic flux

105. MATH

I have 5 nickels 6 pennies and 8 dimes in a box. i select one at random. What is the probability that it was a penny or a dime ?

106. geo

I need to find the the height of the prism, the volume of the prism, and the area of the base. The front has a measurement of 8 cm and the line on the side has 19 cm. can you please help me.

107. social

Crisis Management What can the government, individual and society do to combat crisis like a. Bomb blast / terrorist attack b. Earthquake c. Floods d. Fire accident.

108. Pre-Cal

convert è = -2 to rectangular equation form

109. Calculus

Find the area between the two curves y1= x^2 - 4x + 5 and y2 = 2x - 3, finding the points of intersection algebraically.

110. Life Orientation

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

How many permutations σ of the set {1,2,…,15} are there such that σ(1)=1,∣σ(n)−σ(n−1)∣≤2 for 2≤n≤15? Details and assumptions σ(n) denotes the nth position of the permutation.

112. Algebra 2

How do you simplify?: -4x/x-x^2

113. algebra

find three rational numbers of 8362 that will come to the right of the following numbers on the number line

114. main ideas

what purpose dose question 3-6 serve in the paragragh . Myfamily has a quaint cottage at a small private lake. The cottage is about 75 years old but we try to keep it in good condition

115. Maths

State the position vector of A(3,4)

116. math

Let S be a set of 31 equally spaced points on a circle centered at O, and consider a uniformly random pair of distinct points A and B (A,B∈S). The probability that the perpendicular bisectors of OA and OB intersect strictly inside the circle can be

117. geometry

Find the surface area of the cone. in pie the radius is 3 cn the height is 18

118. physic

a sportcar moving from rest 0 to 100km/h ..there hanging a pendulum in the car..what will be the angle pendulum can make with vertical line??

119. physics

Many of you may have noticed the phenomenon that basketballs get flat if the weather is cold. If a basketball was inflated to a gauge pressure of 60,000 Pa when the temperature outside was 20∘C, what is the gauge pressure inside the basketball in

120. physics

An airplane of a certain density and shape flies at a constant speed. To do so, it must fly with a certain velocity v0. If the size of the airplane is scaled up in length, width, and height by a factor of two, it can only fly above a new velocity v1.