# Brian

Newest questions and responses by Brian
1. ## sociology

What is the best way to characterize the health care that the poor receive? inferior superior because of government insurance the same as care for wealthy people inferior only for the elderly poor about the same as for the average American

asked on December 14, 2018
2. ## health

Which one of the following groups has the highest incidence of diabetes in the U. S.? Hispanic Americans Native Americans Asian Americans White Americans I think it's white americans, but i'm not sure

asked on December 14, 2018
3. ## earth science

what are risks associated with human-caused extinction?

asked on December 11, 2018
4. ## earth science

How are “natural hazard” (hazardous event) and “disaster” defined? What is the connection between them that determines the size of a disaster caused by a hazard? You can use an example to explain the connection.

asked on December 11, 2018
5. ## probability

Busy people arrive at the park according to a Poisson process with rate λ1=3/hour. Relaxed people arrive at the park according to an independent Poisson process with rate λ2=2/hour. Assume that no other people arrive at the park. During the last 10

asked on November 27, 2018
6. ## probability

1. Busy people arrive at the park according to a Poisson process with rate λ1=3/hour and stay in the park for exactly 1/6 of an hour. Relaxed people arrive at the park according to a Poisson process with rate λ2=2/hour and stay in the park for exactly

asked on November 27, 2018
7. ## probability

When you enter your bank, you find that there are only two tellers, both busy serving other customers, and that there are no other customers in line. Assume that the service times for you and for each of the customers being served are independent

asked on November 26, 2018
8. ## probability

Let X and Y be independent Erlang random variables with common parameter λ and of order m and n, respectively. Is the random variable X+Y Erlang? If yes, enter below its order in terms of m and n using standard notation. If not, enter 0.

asked on November 26, 2018
9. ## probability

Consider a Poisson arrival process with rate λ per hour. To simplify notation, we let a=P(0,1), b=P(1,1), and c=P(2,1), where P(k,1) is the probability of exactly k arrivals over an hour-long time interval. What is the probability that we will have “at

asked on November 26, 2018
10. ## probability

For each exam, Ariadne studies with probability 1/2 and does not study with probability 1/2, independently of any other exams. On any exam for which she has not studied, she still has a 0.20 probability of passing, independently of whatever happens on

asked on November 26, 2018
11. ## math

(7z^ m )(nz ^ 3 )=−14z

asked on October 2, 2018
12. ## Physical Science

A rectangular container measuring 20 cm x 47 cm x 68 cm is filled with water. What is the mass of this volume of water in kilograms and grams please?

asked on August 27, 2018
13. ## science

A rectangular container measuring 20 cm x 47 cm x 68 cm is filled with water. What is the mass of this volume of water in kilograms and grams?

asked on August 27, 2018
14. ## life orientation

define the concept risk behavior and explain why it is important for teenager to investigate and be knowledgeable about it

asked on August 19, 2018
15. ## Math

In a game, 5 points are awarded for each game and 2 points are deducted for each game lost,Kyler attempted 15 games,if he got 68 points,how many gamesvdid he lose?

asked on August 1, 2018
16. ## MATH

Find and simplify the diﬀerence quotient for the given function. f(x)= -x^2+2x-1 I need to know how to set up the equations and simplify everything when dividing by h at the end.

asked on June 3, 2018
17. ## Physics

In the Theory of Special Relativity, the momentum of a massless particle is equal to which of the following? A. m0c^2 B. E2c^2 C. E/c D. E/c^2

asked on April 24, 2018
18. ## Physics

In the Theory of Special Relativity, the momentum of a massless particle is equal to which of the following? A. m0c^2 B. E2c^2 C. E/c D. E/c^2

asked on April 24, 2018
19. ## Physics

Physics question regarding reflection. Based on what I got from the reading, the law of reflection states that the angle incoming is the same as the angle outgoing. So I'm assuming the answer is C where the reflection should be about the same as you, but I

asked on March 25, 2018
20. ## Math

a rectangular prism 3cm x 5cm x 6cm is painted and is then cut into 1cm^3 cubes. What is the total unpainted surface area of these cubes? - Please help! I do not understand this question.

asked on January 28, 2018
21. ## Physics

How does the electric potential energy (EPE) between two point charges depend upon their separation s? a. EPE ∝ 1/s b. EPE ∝ s c. EPE ∝ 1/s2 d. EPE ∝ s2 I want to say it's a. since it's part of the formula UE = kq1q2/s but I'm not too sure if that

asked on January 21, 2018
22. ## Calculus

assuming the population of the earth changes at a rate proportional to the current population further, it is estimated that at time t=0, the earth's population was 600 million, at t=300, it's population was 2.8 billion. find an expression giving the

asked on December 1, 2017
23. ## math

which of the following is an example of an open equation? 1)5x+7=12// 2)12+(-8)=4// 3)25=5(5)//4)8+0=8

asked on October 13, 2017
24. ## Language arts

What is the personal pronoun in this sentence? The children showed me their favorite games to play. children me the games My answer is B

asked on September 14, 2017
25. ## algebra

translate into algebraic expression 24 more than twice Greg's age

asked on August 6, 2017
26. ## Bus. Math 123

Problem: Invoice-Nov. 27. Date goods recvd. ? Terms- 2/10 EOM. Last day of discount- ? Final day bill is due ? Complete above.

asked on July 29, 2017
27. ## Science - chemistry

Write the complete ionic equation for the reaction of magnesium phosphate with lead (II) nitrate. Include which ions will be aqueous and which compound will precipitate. (Valences: Mg=+2, PO4=-3, Pb=+2, NO3=-1)

asked on July 9, 2017
28. ## Chemistry 12

The following data was obtained after 25.00ml of benzoic acid was titrated with potassium hydroxide. Volume of KOH used: Trial 1: 27.80ml Trial 2: 27.88ml Trial 3: 27.66ml Initial pH: 3.125 pH at 13.92ml: 5.013 Find the Ka for this sample of citric acid

asked on June 25, 2017
29. ## math/statistics

In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 150 had investments in stock funds. 78 had investments in bond funds. 60 had investments in money market funds. 46 had investments in stock

asked on June 19, 2017
30. ## math/statistics

In the Numbers Game, a state lottery, four numbers are drawn with replacement from an urn containing balls numbered 0-9, inclusive. Find the probability that a ticket holder has the indicated winning ticket. The first three digits in exact order.

asked on June 19, 2017
31. ## math/statistics

In a survey of 400 individual investors regarding subscriptions to the New York Times (NYT), Wall Street Journal (WSJ), and USA Today (UST), the following data were obtained. 120 subscribe to the NYT. 146 subscribe to the WSJ. 68 subscribe to the UST. 36

asked on June 16, 2017
32. ## math

Solve the linear programming problem by the method of corners. Find the minimum and maximum of P = 3x + 2y subject to 3x + 5y ≥ 20 3x + y ≤ 16 −2x + y ≤ 2 x ≥ 0, y ≥ 0 The minimum is P = at (x, y) =

asked on June 10, 2017
33. ## math

A company manufactures x units of Product A and y units of Product B, on two machines, I and II. It has been determined that the company will realize a profit of \$2/unit of Product A and a profit of \$7/unit of Product B. To manufacture a unit of Product A

asked on June 10, 2017
34. ## math

A financier plans to invest up to \$500,000 in two projects. Project A yields a return of 8% on the investment of x dollars, whereas Project B yields a return of 13% on the investment of y dollars. Because the investment in Project B is riskier than the

asked on June 10, 2017
35. ## math

Solve the linear programming problem by the method of corners. Find the minimum and maximum of P = 3x + 2y subject to 3x + 5y ≥ 20 3x + y ≤ 16 −2x + y ≤ 2 x ≥ 0, y ≥ 0 The minimum is P = at (x, y) =

asked on June 9, 2017
36. ## math

A financier plans to invest up to \$500,000 in two projects. Project A yields a return of 8% on the investment of x dollars, whereas Project B yields a return of 13% on the investment of y dollars. Because the investment in Project B is riskier than the

asked on June 9, 2017
37. ## math

A company manufactures x units of Product A and y units of Product B, on two machines, I and II. It has been determined that the company will realize a profit of \$2/unit of Product A and a profit of \$7/unit of Product B. To manufacture a unit of Product A

asked on June 9, 2017
38. ## math

The difference between two numbers is 3. Eight times the larger number is 10 times the smaller number. Write a system of equations describing the given conditions. Then solve the system by the substitution method and find the two numbers.

asked on May 14, 2017
39. ## math

Determine graphically the​ x-value when y equals 3y=3 in the given equation. y equals 5 minus x y=5-x

asked on May 13, 2017
40. ## C++ programming

Elevator Bank Design and Implementation 1 Project Description The goal of this project is to design and develop C++ code and algorithms to control a bank of elevators, which services many oors and transports people \eciently ", that is, as per the given

asked on May 4, 2017
41. ## Math

the thirteenth term of an arythmeticprogression is 27. given that the seventh term equals to three times the second term, find: the first term nd the common difference of the progression

asked on April 12, 2017
42. ## Life

Fill In My Blank Spaces

asked on April 7, 2017
43. ## math

Sam has twice as many books as Jim. If Sam gives 12 books to Jim, they will have the same number of books. How many books to they have altogether?

asked on March 26, 2017
44. ## Calculus

Suppose the integral from 2 to 6 of g of x, dx equals 12 and the integral from 5 to 6 of g of x, dx equals negative 3 , find the value of the integral from 2 to 5 of 3 times g of x, dx

asked on February 26, 2017
45. ## Pre-Calculus

How do I solve the equation: 3 = 2.1 sin[(pi/6)t - 5pi/6] + 3.2

asked on February 19, 2017
46. ## Math

If cscØ = 4/3, find sinØ + sinØ cot^2 Ø

asked on February 6, 2017
47. ## Precalculus

Every point in the plane has exactly two polar coordinates. A)The statement is true because every point in the plane has a unique polar representation. B)The statement is false because left parenthesis r comma theta right parenthesis equals left

asked on January 12, 2017
48. ## Precalculus

Find the magnitude and direction angle θ of the vector. u=4(cos102°i+sin102°j)

asked on January 11, 2017
49. ## Physics

A ball with mass m=1kg and speed vo=5m/sec elastically collides with a stationary, identical ball (all resting on a frictionless surface so gravity is irrelevant). A student measures the top ball emerging from the collision at at speed vt=4m/sec at an

asked on January 9, 2017
50. ## History

Which adjective best describes Ming China’s position toward European trade? a.diplomatic b.equivalent c.inviting d.restrictive

asked on January 4, 2017
51. ## Math

It takes Marty 1 1/4 hours to get ready for school. If 1/5 of that time is used to shower, what fraction of an hour does it take him to shower?

asked on January 3, 2017
52. ## stats

If a student answers 40 multiple choice questions, each with four possible answers, by guessing randomly, the probability that she answers at least 15 correctly

asked on November 7, 2016
53. ## Math

Place grouping symbols to make the equation true: 3x5-8+7-3/6=13

asked on November 3, 2016
54. ## calculus

Cars on a certain roadway travel on a circular arc of radius r. In order not to rely on friction alone to over­ come the centrifugal force, the road is banked at an angle of magnitude 0 from the horizontal. The banking angle must satisfy the equation rg

asked on November 3, 2016
55. ## calculus

A patrol car is parked 50 feet from a long warehouse The light on the car turns at a rate of 30 revolutions per minute. How fast is the light beam moving along the wall when the beam makes the fol­ lowing angles with the line perpendicular from the light

asked on November 3, 2016
56. ## calclus

A fish is reeled in at a rate of 1 foot per second from a bridge 15 feet above the water. At what rate is the angle between the line and the water changing when 25 feet of line is out? (Assume the fish stays near the surface of the water.)

asked on November 2, 2016
57. ## Calclus

A point is moving along the graph of y = 1/(1 + x^2) so that dxldt = 2 centimeters per minute. Find dy/dt for the following values of x. (a) X = -2

asked on November 2, 2016
58. ## calclus

A point is moving along the graph of y = 11(1+x2) so that dx/dt = 2 centimeters per minute. Find dy/dt for the following values of x. (a) X = -2 (b) X = 0 (c)X=2 (d)X=10

asked on November 2, 2016
59. ## calculus

A point is moving along the graph of y = x2 so that dx/dt is 2 centimeters per minute. Find dy/dt when (a)x = 0 and (b)x = 3.

asked on November 2, 2016
60. ## Calculus

All edges of a cube are expanding at the rate of 3 centimeters per second. How fast is the volume chang­ ing when each edge is (a) 1 centimeter and (b) 10 centimeters?

asked on November 2, 2016
61. ## calculus

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at the rate of 10 cubic feet per minute. The diameter of the base of the cone is approx­ imately three times the altitude. At what rate is the height of the pile changing

asked on November 2, 2016
62. ## Calculus

A spherical balloon is inflated with gas at the rate of 20 cubic feet per minute. How fast is the radius of the balloon increasing at the instant the radius is (a) 1 foot and (b) 2 feet?

asked on November 2, 2016
63. ## Math

The length of a rectangular board is 10 cm longer than its width. The width of the board is 26 cm. the board is cut into 9 equal pieces. What is the area of each piece? What are the possible dimensions of each piece?

asked on October 13, 2016
64. ## Physics

If C⃗ = -5 i^ - 3 j^ - 4 k^, what is C⃗ × j^? If = -5 - 3 - 4 , what is × ?

asked on September 21, 2016
65. ## US history

how did the Virginia colony survive with the help of the English colonists?

asked on September 19, 2016
66. ## Geometry

A rectangular prism is measured 84 cm(l) x 42cm (w) x 56cm h. What is the largest size cube that fits the dimensions of the prism? Number of cubes required? Maximum length of the edge of the cube that fits 64cm, 42cm, and 56cm is _____cm. Number of

asked on September 9, 2016
67. ## Math

simplify 10×10^4+2.8×10^6

asked on September 6, 2016
68. ## Statistics

How do I answer: A normal distribution has a standard deviation equal to 39. What is the mean of this normal distribution if the probability of scoring above x = 209 is 0.0228

asked on September 1, 2016
69. ## Algebra

I need some help on this math problem. 3c^2 - 5c - 7.8 = -2.2

asked on August 22, 2016
70. ## math

can someone explain how to solve just not answer: IxI if x = 12 the I are a bar?

asked on August 17, 2016
71. ## Math

On a 20 question math test, your teacher gives you five points for every correct answer and takes away one point for each incorrect answer. If you score 70 on the test, how many did you get correct?

asked on June 19, 2016
72. ## Math

On a 20 question math test, your teacher gives you five points for every correct answer and takes away one point for each incorrect answer. If you score 70 on the test, how many did you get correct?

asked on June 19, 2016
73. ## Geometry

Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.

asked on June 3, 2016
74. ## Math- Geometry

Explain why knowing a combination of four pairs of equal sides or equal angles guarantees one of the congruence relationships.

asked on June 3, 2016
75. ## Math

Prove that an exterior angle of a triangle is equal to the sum of the non adjacent interior angles of that triangle. Use the following variables in your proof. Exterior angle=w Interior adjacent angle= x Interior non adjacent angle1= y Interior non

asked on June 2, 2016
76. ## Math

A 2-digit number is twice the difference of its digits. What is the number?

asked on May 24, 2016
77. ## Math

A 2-digit number is twice the difference of its digits. What is the number?

asked on May 24, 2016
78. ## Math

Six apples cost as much as four pears. Each pear costs \$4 more than each Apple. What is the cost of one pear?

asked on May 22, 2016
79. ## Calculus

Evaluate as limit approaches 0. (Without using l'hopital's rule. ( Sqrt(4+sin(x))-2 ) / (3x)

asked on April 28, 2016
80. ## Chemistry

Calculate the total amount of heat that must be added to convert 15.7g of ice at its melting point to steam at 100.0°C

asked on April 20, 2016
81. ## Science

A transformer with 1890 turns in its primary coil has to decrease the voltage from 4620 V to 220 V for home use. How many turns should there be on the secondary coil?

asked on April 1, 2016
82. ## Physical Science

A 20.0-Ù resistor and a 45.0-Ù resistor in parallel are connected to a 120-V dc source. (a) What is (are) the current(s) through the resistors? current through the 20.0-Ù resistor: Incorrect: Your answer is incorrect. . A current through the 45.0-Ù

asked on March 30, 2016
83. ## English

Nine Haikus During a Drought In the dusty lane A frog waits for a puddle To fall from the sky Which form best describes this poem? A. limerick B. Haiku C. Concrete D. Narrative My choice is B. Haiku What about the poem best supports the answer to the

asked on February 18, 2016
84. ## science

A bullet of 29g is shot from a gun of mass 20kg with a muzzle velocity of 200ms if the bullet is 30cm long.determine. a)acceleration of the bullet b)the recoil velocity of the gun

asked on February 15, 2016
85. ## physics

4. A gun’s bullet was launched horizontally with a speed 600m/s. It fell to the ground 300m away from the gun. a. How long was the bullets flight? b. At what height was the gun’s barrel at the moment of the shot? 5.

asked on February 9, 2016
86. ## physical science

A golfer on a level fairway hits a ball at an angle of 38° to the horizontal that travels 85 yd before striking the ground. He then hits another ball from the same spot with the same speed, but at a different angle. This ball also travels 85 yd. At what

asked on February 1, 2016
87. ## Chemistry

Given that ΔH (fusion) of water is 6025 J/mol, Cp,m(ice) = 37.7 J K–1 mol–1, and Cp,m(water,liquid) = 75.3 J K–1 mol–1, calculate ΔG (in J) for the freezing of 89 moles of water at 1 atm pressure and the constant temperature T = 14.4 °C. I got

asked on January 28, 2016
88. ## engineering science

calculate the work done required to push a car for 420 meters up an melon the force required to push the car is equal to 615n

asked on January 22, 2016
89. ## chemistry

A sample of nitrogen has a volume of 50.0L at a pressure of 760mmHg. What is the volume of the gas at each of the following pressures if there is no change in temperature? A. 1500mmHg B. 4.00 atm C. 0.500atm

asked on January 14, 2016
90. ## Math

Jane buys a coat that is \$18 off the orinigal price. This is a 30% discount. What is the original price of the coat? Please explain how to get answer? Thanks

asked on January 13, 2016
91. ## math

Taylor's home street address number has five digits. Two digits have values of 60,000 and 300.the last digit is 9.the value of each of the other digits is ten times the value of the digit on it's right. What's Taylor's home street address number.

asked on January 10, 2016
92. ## math

Susie loves Starbucks coffe today,while waiting to place her order for her salted caramel macchiato , she noticed the prices for the three sizes that were available 12oz for \$3.60 16oz for \$4.96 20oz for \$5.20 which size is the better unit rate

asked on January 9, 2016
93. ## Math

Missing base 1/9= [. ] with exponent 2 please explain how I can get the answer thanks

asked on December 15, 2015
94. ## Math

Missing exponent of 1/169=(1/13) please explain how I can find the missing exponent

asked on December 15, 2015
95. ## English

Background Your favorite cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to apply at similar stores in your town. But you also know she

asked on December 5, 2015
96. ## math

if i ran 1&5/8 mile and than later ran 9/10 of a mile what is the amount

asked on November 17, 2015
97. ## Chemistry

How many ml of water must be added to 40.0 ml of 2.50 m koh to prepare a solution that is 0.212 m?

asked on October 23, 2015
98. ## Southridge

What's the process if the input numbers are 1,2,3,4,5 and the output numbers are 2,5,10,17,26

asked on September 29, 2015
99. ## Math

On a ruler that measures both metric and English units, we see that 1m=39.37 in. This implies that 2m = 78.74 in. Use this information to write an equation to convert x in. to y meters.

asked on September 28, 2015
100. ## math

simplify: 5-(-3)^2 -6

asked on August 25, 2015