# jose

Popular questions and responses by jose
1. ## Statistics

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.62 and a standard deviation of 0.43. Using the empirical rule, what percentage of the students have grade point averages that are

2. ## physics

A 5.75 µC and a -2.61 µC charge are placed 19.8 cm apart. Where can a third charge be placed so that it experiences no net force?

3. ## math

What is the unit rate? 1500 meters in 6 seconds?

4. ## math

Determine if the Mean Value Theorem for Integrals applies to the function f of x equals the square root of x on the interval [0, 4]. If so, find the x-coordinates of the point(s) guaranteed to exist by the theorem.

5. ## math

Renee is a sales associate at a store. She earns \$80 a week plus a 15% commission on her sales. Last week, she sold \$200 worth of items. What is the total amount Renee earned for the week? How much did she earn from commission?

6. ## physics

As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from

7. ## Pre-Calculus

Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x4 − 3x3 + 29x2, D(x) = 3x2 + 13

8. ## College Chemistry

For each trial, enter the amount of heat lost by the calorimeter, qcalorimeter. Be careful of the algebraic sign here and remember that the change in temperature is equal to the final temperature minus the initial temperature. Report your answer using 4

9. ## math

Irrational Perimeter and a Rational Area of a rectangle. a can = b can = Or, if it's impossible, explain how. Help me I'm confused.

10. ## math

Suppose a 25-foot ladder is leaning against a wall making a 63 degree angle with the wall. How high up th wall is the end of the ladder?

11. ## Chemistry

1. Which metal is the most easily oxidized? A.) highly active metal *B.) moderately active metal C.) slightly active metal D.) an inactive metal 2. What happens in a voltaic cell? *A.) Chemical energy is changed to a electrical energy. B.) Electrical

12. ## chemistry

Calculate the temperature change in the water upon complete melting of the ice. Hint: Determine how much heat is absorbed by the melting ice and then use q =mC*Delta T to calculate the temperature change of the 314 g of water. under the following

13. ## PHYSICS

If the current in a 100 mH coil changes steadily from 25.0 A to 10.0 A in 375 ms, what is the magnitude of the induced emf?

14. ## science

What kind of terrain and landforms would indicate the prior existence of a valley glacier.

15. ## Chemistry

If 100g of Methane are burned in this reaction to cook my dinner, How many moles of Carbon dioxide are produced?

16. ## Physics

Suppose a gust of wind has carried a 52-μm-diameter dust particle to a height of 340 m. If the wind suddenly stops, how long will it take the dust particle to settle back to the ground? Dust has a density of 2700 kg/m^3, the viscosity of 25∘C air is

17. ## Stoichiometry

C3H5+5O2-3CO2+4H2O

18. ## statistics

If boys and girls are equally likely to be born, what is the probability that in a randomly selected family of 6 children, there will be at least one boy? (Find the answer using a formula. Round your answer to three decimal places.)

19. ## Math

Write a measurement division story problem for 5/12 divided by 1/6

20. ## math seriously help me

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear

21. ## physics

A ball is projected upward at time t = 0 s, from a point on a flat roof 10 m above the ground. The ball rises and then falls with insignificant air resistance, missing the roof, and strikes the ground. The initial velocity of the ball is Consider all

22. ## science

which of the following is the best course of action when it comes to using natural resources

23. ## statistics

A company is considering installing new machines to assemble its products. The company is considering two types of machines, but it will buy only one type. The company selected eight assembly workers and asked them to use these two types of machines to

24. ## physics

A thin 12 cm long solenoid has a total of 460 turns of wire and carries a current of 2.1 A. Calculate the magnitude of the field inside near the center.

Question What are the differences between an internal proposal and an external proposal? Also I need to summarize why the two proposal types are different in terms of the following elements: Consider the following scenario: Management at your project

26. ## english

In the United States, cell phones are a very popular item. What are all VERBS both "Action" and "Be."

27. ## trig

Find the component form of v and sketch the specified vector operations geometrically, where u = 4i − j, and w = i + 5j. v = −u + w v = ( , )

28. ## Ela

Write each phrase below to make it a plural or singular possessive or plural possessive.the backpacks belonging to the girls,the covers of the bookd

29. ## pcc

A volume of 40.0mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4). What was the molarity of the KOH solution if 21.7mL of 1.50 M H2SO4 was needed? The equation is

A satellite is in a circular orbit very close to the surface of a spherical planet. The period of the orbit is 2.23 hours. What is density of the planet? Assume that the planet has a uniform density.

31. ## SCI/275

Compare and contrast the western world view with the deep ecology world view. Challenge one of the world views presented in Visualizing Environmental Science. Which world view is closest to your own? Why?

32. ## applied chemistry

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

33. ## Language arts and writing

The first compact microwave ovens were sold in 1960. Everybody didn't use them until the 1980's.

34. ## verbs

kris enjoys action movies at the theatre

35. ## chem

How many liters of 12.3 molar NaOH stock solution will be needed to make 12.4 liters of a 1.2 molar NaOH solution? Show the work used to solve this problem.

36. ## physics

In the figure , the total resistance is 10.0 kOmega, and the battery's emf is 28.0 V. If the time constant is measured to be 40.0 mu s. Calculate the total capacitance of the circuit.Calculate the time it takes for the voltage across the resistor to reach

37. ## Chemistry

How much water can be produced from the complete reaction of 2.56 L of oxygen gas, at STP, with hydrogen gas answer in units of g.

38. ## Chemistry

How much water can be produced from the complete reaction of 2.56 L of oxygen gas, at STP, with hydrogen gas answer in units of g.

39. ## math

Write three number that are greater than 1,543,000 but less than 1,544,000

40. ## dictionary

What does the italicized n stand for in a dictionary entry

41. ## chemistry

Which of the following statements is NOT true in regards to water, ethanol, and isopropanol? A. Water has the highest boiling point. B. Two lone pairs of electrons are assigned to the oxygen in each Lewis structure of all three molecules. C. Dispersion

42. ## math

wat is1/2 plus 1/3

43. ## Physics

A airplane has a speed of 290 km/h and is driving at an angle of 30 degrees below the horizontal when the pilot releasese a radar decoy. The horizontal distance between the release point and where the decoy hits the ground is 700m. a) How long is the decoy

44. ## math

Find the equation of the line of best fit for the points (-4,10) (-1,5)(2,-1)(3,-6)(5,-7)

45. ## Math

What is the work for the problem 61,125 divided by125

46. ## math

two concentric circle with the ratio of radii as 2:3, what is the ratio of the area? thanks

47. ## Math

A marine surveyor uses a rangefinder and a compass to locate a ship and an island in the vicinity of the coast on which she stands. The rangefinder indicates that the island is 379 ft from her position and the ship is 600 ft from her position. Using the​

48. ## financial math

Rate: 7% Payments: 360 @ \$665.31 Total Interest: \$139,511.60 How much will be repaid for this loan? \$ 239,511.60239,502.40100,000.00 What percentage of this total is total interest? 60.256.258.2 What will be the average amount per payment for interest? \$

49. ## physics

A mass m = 0.068 kg of benzene vapor (Lv = 3.94x105 J/kg) at its boiling point of 80.1°C is to be condensed by mixing with water at 45.0°C. What is the minimum mass of water required to condense all of the benzene vapor? Assume the mixing and

50. ## Math

Marisa says that reflecting a point across the x axis and then reflecting its image across the y-axis will produce the same final image as just reflecting the original point across the line y equals x is this true?

51. ## math

To date, Jay Ward has xumulative earnings of \$ 107,600. This week he is paid \$3,000. What is the total amount of Social Security tax for this week? Assume a rate of 6.2% on \$110,100 for Social Security and 1.45% for Medicare.

52. ## Math

x/(x+1) - 2/(x-1)= 1 I have been trying to solve it but I do not know the steps to solve it.

53. ## algebra

whats the difference between a 16 ounce brick and a carpenter?

54. ## Physics

An airplane flies 220 km due east, makes a right-angle, and then flies 400 km due north. Find the magnitude of the plane's displacement from it's starting point. Neglect the culrvature of the earth

55. ## math

There are 2 leaves along 3 in.of an ivy vine. There are 14 leaves along 15 in. of the same vine. How many leaves are there along 6 in. of the vine?

56. ## Math

Becca wants to make a giant cherry pie to try to break the world record. If she succeeds in making a pie with a 20 foot diameter, what will be the total distance around the pie?

57. ## Math

Pam served her apple pie on a 13 inch diameter dish. She wanted to tie a ribbon around the dish to make it a little more festive. How long does the ribbon need to be in order to fit around the dish?

58. ## geometry

Given the equation of the circle (x – 9)2 + y2 = 484 , where is the center of the circle located at?

59. ## tax

Business Investigation Expenditures. During January and February of the current year, Big Bang LLC incurs \$3,000 in travel, feasibility studies, and legal expenses to investigate the feasibility of opening a new entertainment gallery in one of the new

60. ## Humanities

What are peer reviewed articles/journals?

61. ## math

if a house square feet is 3,546 sq what is the perimeter of the house

62. ## chem

why is hydrogen gas placed in the 1A column of the periodic table?

63. ## Physics

A car starts from rest and accelerates uniformly to a speed of 50km/h in 18s. If the wheels of the car are 70cm in diameter. Calculate; a.The final angular velocity of the wheels b.angular acceleration

64. ## chemistry

Calculate the relative molecular mass of a gas if a 500cm3 sample at 20¢ªC and 1 atomic mass of 0.66g

65. ## calculus

A cylindrical metal can with an open top is to be constructed. the can must have a capacity of 24pie cubic inches. the metal used to contruct the bottom of the can costs 3 times as much as the metal in the rest of the can. Find the dimensions(radius and

66. ## algebra

one plane left an airport at 11:30 am. A second plane, traveling at 320 mph left the same airport at 1:00 pm and overtook the first plane at 4:30 pm. At what speed was the first plane traveling?

67. ## math

A video game store charges a monthly membership fee of \$7.50 but the charge to rent each movie is only \$1.00 per movie. Another store has no membership fee but it costs \$2.50 to rent each movie. How many movies need to be rented each month for the total

68. ## IPC

IF THE SIDE OPPOSITE A 45 ANGLE IN A RIGHT TRIANGLE 12.5 METERS, HOW LONG IS THE ANGLE?(ROUND THE ANSWER TO THE NEAREST TENTH)

69. ## PHYSICS

The magnetic field inside an air-filled solenoid 39 cm long and 2.0 cm in diameter is 0.85 T. Approximately how much energy is stored in this field?

70. ## PHYSICS

What is the inductance L of a 0.40 m long air-filled coil 3.2 cm in diameter containing 10,000 loops?

71. ## PHYSICS

What is the inductance of a coil if the coil produces an emf of 8.20 V when the current in it changes from -28.0 mA to +31.0 mA in 45.5 ms?

72. ## PHYSICS

A 14 cm diameter circular loop of wire is placed in a 0.58 T magnetic field. (a) When the plane of the loop is perpendicular to the field lines, what is the magnetic flux through the loop? (b) The plane of the loop is rotated until it makes a 36° angle

73. ## chemistry

what is the maximum number of grams of PH3 that can be formed when 6.2 g of phosphorus reacts with 4.0 g of hydrogen to form PH3

74. ## algebra

what is 4 to 4th power and show the process?

75. ## chemistry

how do i convert these 0.25g = how many cgs 400 cm^3 = how many Ls and 400 cm^3 = how many m^3s?

76. ## science

Which of the following is NOT found in animal cells? a. cell wall b. cell membrane c. organisms d. prokaryotes I think the answer is cell wall, but I'm not sure. Cell walls are only found in plant cells as far as I know. yes, a

77. ## math

what is the difference between translation , rotation, relections, and dilation in 8 grade work In 8th grade talk, I recommend you check the examples in your book. OR, if you put your definitions here, I can critique them.

78. ## Math

You’ve decided to paint your room instead of using wallpaper. You know you will need to apply two coats of paint to fully cover the walls. One gallon of paint will cover 400 square feet. How many quarts of paint will you need to purchase if there are 4

79. ## Geometry

In right triangle ABC,

80. ## Math

Fraction equal to 1 that has a denominator of 12

81. ## History

What can you infer about the northeastern states by looking at the maps ?

82. ## Chemistry

The molar heat capacity of C6H6(ℓ) is 136J/mol · ◦C and of C6H6(g) is 81.6 J/mol · ◦C. The molar heat of fusion for benzene is 9.92 kJ/mol and its molar heat of vaporization is 30.8 kJ/mol. The melting point of benzene is 5.5◦C, its boiling point

83. ## science

A student throws a ball upwards from the ground level where gravitational potential energy is zero. At a height of 15 m, the ball has a potential energy of 60 J, and is moving upwards with a kinetic energy of 40 J. Ignoring air resistance, the maximum

84. ## Math

A sum of money was shared among Aaron,Ben,and Charles in the ratio 2:5:7.If Charles's share was \$1,180 more than Aaron's share,what was the original sum of money shared?

85. ## Algebra

What is the answer for 2-11×^2-8×+6×^2

86. ## Chemistry

How many grams of Oxygen are needed to react with 100g of Nitrogen monoxide?

87. ## PHYSICS

A car, moving along a straight stretch of highway, begins to accelerate at 0.024 m/s 2 . It takes the car 61.8 s to cover 1 km. How fast was the car going when it first began to accelerate?

88. ## geometry

the perimeter of a angle is 40 inches the ratio of lengths is 3:4:6: find the shortest side lengths

89. ## Math

Micah has a new remotely controlled car that has a circular range with a radius of 30 feet. What is the area of the circular range?

90. ## Chemsitry

A student reacts 0.506 grams of aluminum with excess KOH and H2O according to reaction one from the lab manual. 2Al + 2KOH +6H2O ---> 2K[Al(OH)4]+3H2 Enter your answers in numerical format. How many moles of aluminum was reacted? How many moles of

91. ## Chem 1C

the hydrolysis of sucrose is a part of the digestive process. to investigate how strongly the rate depends on our body temperature, calculate the rate constant for they hydrolysis of sucrose at 35C given that k=1.0 mL/(mol*s) at 37C and that the Ea=108

92. ## math

Sally graphs the geometric sequence an = 2(3)n - 1 on a coordinate plane where she plots an on the y-axis and n on the x-axis. This graph is the same as the graph of which type of function? A) cubic B) linear

93. ## algebra

find the periodic payments necessary to accumulate the amount given in a sinking fund. Assume end of period deposits and compounding at the same intervals as deposits. \$70,000 in a fund 7% per year, monthly payments for 5 years Thank you your time is

94. ## Geometry

At a campground, a rectangular fire pit is 5 feet by 4 feet. What is the area of the largest circular fire that can be made in this fire pit? Use 3.14 for π. Round to the nearest square inch.

95. ## Math

On friday,a cold front came through the city at 8am that dropped the outside temperature at an average rate of 2 degrees every half hour. Which integer represents the change in temperature from 8am to 11am

96. ## math

Two cars leave Kansas City at the same time. One car is moving east and the other west. After 5 hours, the cars are 575 miles apart. One car is traveling 15 miles per hour faster than the other. Let S = the speed of the slower car and F = the speed of the

97. ## math-circles

The area of two circles are in a ratio of 4:9. If both radii are integers, and r(1) - r(2) = 2, what is the radius of the larger circle?

98. ## math

In pallelogram, ABCD, E is the midpoint of DC, AE intersecs BD at point O, the area of triangle DOE is 12cm^2, what is the area of triangle AOB?

99. ## triangles

In triangle ABC, AB = 12, AC= 9, D is a point on AC, AD = 3. E is a point on AB, so that triangle ADE is similar to ABC, what is the length of AE? (two different answers)