Posts by Kim
Total # Posts: 2,726

soc 203
Which of the following social structures is NOT reflected in the act of a wife adopting her husband’s name and foregoing her father’s (her maiden) name? 
Science
This is just a general question.. Why do you think it is beneficial to average class data instead of drawing conclusions from only data that your group collected? 
Vectors
A plane is steering east at a speed of 240km/h. What is the ground speed of the plane if the wind is from the northwest at 65km/h. What is the plane's actual direction? 
Vectors
A plane is steering east at a speed of 240km/h. What is the ground speed of the plane if the wind is from the northwest at 65km/h. What is the plane's actual direction? 
calculus
If 'a' and 'b' are unit vectors that make an angle of 60 degrees with each other, calculate l 3a  5b l and l 8a + 3b l the 'a' and 'b' have a carat of top of them 
Statistics
I'm confused as to what would n (the sample size) be? would it be 85? 
Statistics
Episodes of dehydration are common at outdoors music festivals. At a particular large annual event, a first aid team has recorded over the years 85 cases on average per day. In 2018, during a weekend they observe 78, 86, 79, and 81 cases. Assuming the distributions of cases is... 
calculus
Suppose the revenue (in thousands of dollars) for the sales of 'x' hundred units of an electronic item is given by the function R(x)= 40x^2e^ 0.4x +30. where the maximum capacity of the plant is 800 units. Determine the number of units to produce in order to maximize ... 
calculus
The net monthly profit, in dollars, from the sale of a certain item is given by the formula P(x) = 10^6[1 + (x1)e^0.001x], where x is the number of items sold. a) Find the number of items that yield the maximum profit. At full capacity, the factory can produce 2000 items per ... 
Statistic
Consumers own laptops of brand X for a certain amount of time before buying a new model. This time duration has a distribution with unknown mean and standard deviation 1.5. The company X expects that consumers will keep their laptop or 3.5 years. After collecting a sample of ... 
Statistics
Consumers own laptops of brand X for a certain amount of time before buying a new model. This time duration has a distribution with unknown mean and standard deviation 1.5. The company X expects that consumers will keep their laptop or 3.5 years. After collecting a sample of ... 
calculus
Thank you very much! I appreciate the brisk response! 
calculus
a) For the function y= e^3x, determine dy/dx, d^2/dx^2 and d^3y/dx^3. b) From the pattern in part a, state the value for ((d^n)y)/(d(x^n)). 
Math
If the third of 6 consecutive numbers is 12, what is their sum? 
math
Order from least to greatest. A.1/4,0.2,1/2 B.1/2,1/4,0.2 C.0.2,1/4,1/2 D.0.2,1/2,1/4 
math
Kyle divided a drink with a volume of 2 1/2 cups into 1/4 portions. How many portions did he he have? 
Algebra
What's the the right order from least to greatest for 1/14, 7/9, 4/5, thank you very much. Kim 
Pre Algebra
Book is 8 1/2 inches and 9 1/4 The perimeter of the textbook? 
Pre Algebra
“A prealgebra book is 8 1 half Click for more options inches by 9 1 fourth Click for more options inches. Determine the perimeter of the textbook. Describe the steps you took to solve this problem. 
Consumer math
Which is not a part of your budget? Primary job gross income Second job realized income Fixed expenses Discretionary expenses**** my answer Am I correct? 
algebra
Solve the system of equations using the linear combination method. {9x+5y=35 2x+5y=0 
Seattle central college
Please help me answer this question 
Seattle central college
Which of the following is author’s opinion a. Olmsted  was appoint superintendent and worker began cleaning the land for construction. b. After a vote by park commissioner, Vaux and Olmsted become the officer design of Central Park. c. Calvert Vaux, a Britsh architect ... 
Math
Explain how you can use mental math to solve the equation 8^(x4)=1. 
math
Use the formula S equals 2 leftparenthesis l w rightparenthesis plus 2 leftparenthesis l h rightparenthesis plus 2 leftparenthesis w h rightparenthesisto find the surface area of a rectangular prism with the following dimensions: length = 2 cm width = 3 cm height = 4 cm... 
math
How could I solve c) and d) without the use of derivatives for the following question? It is estimated that, t years from now, the amount of waste accumulated, Q, in tonnes, will be Q(t)= 10^4(t^2+15t+70) tonnes, t is greater than or equal to 0, t is also less than or equal to... 
Algebra2
g(x)=5x1 solve g(x)=17 
Algebra
5+i/2i I’m lost on this question and don’t know how to finish here is what I got 5+i/2i*3 on both sides? 
Trig
Show that the following statement is an identity by transforming the left side into the right side. sin?(csc? ? sin?)= cos^2 ? 
accounting
thank you 
accounting
The ABC Company has a policy to capitalize an asset with a threshold of $5,000 per item or a project/program. The ABC Company has an ongoing rolling replacement project/program to replace 20% of all computers annually. In addition, the ABC Company uses straight line method, ... 
Math
I received an D+ for a final grade what did I get on the final 
Math
Use synthetic division to find the zeroes of the function f(x) = x^3 + x^2 +4x+4 Need help on this we have a test when i go back to school please help this was an example given and i dont understand it. 
Criminal justice
As interpreted by the US Supreme Court which of the following individual rights is not guaranteed by the bill of rights? A right to have an attorney A right to an appeal A right to a trial by jury*** A right to due process I believe it is a right to a trial am I right? If not ... 
Statistics
According to a recent survey, 65% of all customers will return to the same grocery store. Suppose 11 customers are selected at random,what is the probability that A) exactly 5 will return? B) all 11 will return? C) at least 6 will return D) at least one will return E) how many... 
statistics
The Middlecreek Branch of the National Bank of Virginia has 10 real estate loans over $1,000,000. Of these 10 loans, 4 are "underwater." A loan is underwater if the amount of the loan is greater than the value of the property. The chief loan officer decided to ... 
Physics
An acrobat of mass 53.2 kg is going to hang by her teeth from a steel wire and she does not want the wire to stretch beyond its elastic limit. The elastic limit for the wire is 2.37 × 108 Pa. What is the minimum diameter the wire should have to support her? 
Physics
In an aviation test lab, pilots are subjected to vertical oscillations on a shaking rig to see how well they can recognize objects in times of severe airplane vibration. The frequency can be varied from 0.0190 to 38.3 Hz and the amplitude can be set as high as 2.08 m for low ... 
Science
How many atoms are in 0.64 moles of strontium 
Computer
Write a C++ program that uses 2 functions the first is to read an array of students’ grades and return the sum of the all grades to the main program. And the second function will receive the sum of all grades from the main program and calculate and print the average of ... 
Computer
Pseudocode that gets 2 numbers from user and prints them in order until the user enters the first value of the trio as negative. 
geometry
I don't know what to do. 
geometry
I don't want the answer I want to be taught how to solve it. Okay so the question is diameter=25in. A=(3.14)(12)^2 Then there is a circle with a line through it and it says 14yd. Okay so I am assuming I solve the area first A=(3.14)(12)^2=452.16 But after that 
Math
Finally, Kevin has a client who would like to invest into an account that earns 3.2% interest, which is compounded annually. The client opens the account with an initial deposit of $4,000, and deposits an additional $4,000 into the account each year thereafter. How much money ... 
Math
The client wants to know how long it will take for an initial deposit of $30000 to double at an annually compounded interest rate of 2.0% What is the doubling time (assuming no withdrawals or additional deposits are made)? 
Math
Tracy became interested in the maximal height for throwing a ball. On the internet, she finds that the maximum pitching speed of professional baseball players is 150 feet per second (about 105 miles per hour). The equation for the height y (in feet) after t seconds of a ball ... 
Math/ help please
In another calculation, Rachel needs to evaluate the expression 5fifth root square ( 400^2). What is the value of this expression? 
Math
Betty has worked out the financing of her coffee shop. She plans to use the money in a savings account for her startup costs. The savings account was opened by her grandmother five years ago. To figure out the annual interest rate, Betty needs to evaluate the expression fifth... 
Adding and subtracting positive and negative numb
Betty is in the process of opening her own business – a coffee shop in downtown Fargo, North Dakota. With the Grand Opening a month away, she runs the numbers involved in her upfront expenses: $5,400 for local advertising, $2,700 for the security deposit and first month&#... 
Math/ compound interest
The next morning, Kevin meets with a client who would like to invest $20,000 into an account that pays 3.2% interest, which is compounded annually. How much money is in the account after 5 years if no withdrawals or additional deposits are made? 
Math/multi step equation
The following formula relates the distance s (in feet) traveled by a vehicle during an emergency stop to the time t (in seconds) it takes to arrive at a complete stop: s=16t^2 At the scene of an accident, Bill uses skid marks to determine the braking distance of one of the ... 
Math
Thank you 
Math
Bill is concerned about the frostbite risk for workers clearing snow. The weather report predicts the air temperature will be 15 degrees Fahrenheit. Joe comes up with an equation relating air temperatures caused by the wind and wind speed: y = 5/ 3 x38.3 where x is the ... 
Math
Intrigued by this formula, Anne applies it to determine the size of her own dog’s head. Anne again uses the formula relating the estimated shoulder height H (in centimeters) of a dog to the internal dimension of the skull D (in cubic centimeters): H=1.016 D  31.2. Anne&#... 
Math
Betty decides to support local artists by hanging their artwork in her shop. When decorating the coffee shop, Betty comes across the following formula for placing pictures on her walls: 1 third open vertical bar A12 close vertical bar plus 2 over 3 open vertical bar a close... 
Math
Betty decides to compare the diagonals of both the square and rectangular tables customers will use in the coffee shop. Her measurements show that the square tables have a side length of 34 inches and the rectangular tables are 29 1/ 3 inches wide and 35 inches long. She uses ... 
Math
I don’t understand the steps here. 
Math
Betty has the option of using three types of tables in her coffee shop: square tables with a side length of 42 inches; rectangular tables 26 inches wide and 73 2/3 inches long; and round tables with a diameter of 36 inches. Which of the tables has the largest area? What is the... 
Math
What is the total amount of time that Joe will spend driving to and from the development site? 
Math
Joe is the owner and CEO of Pinecrest Enterprises, a real estate development company in Boise, Idaho. The company has taken on a new development project outside of town, and Joe wants to drive out to survey the proposed development site. The site is 30 miles away from Joe’... 
Math
Sorry I didn’t realize. This what I want to find out for Betty How much money does Betty need to cover these upfront items? 
Math
Ok I got it now 
Math
C=600x+220 for the total cost C (in millions of dollars) for the development, where x is the average cost (in millions of dollars) of a single family home. I didn’t release I didn’t write the equation out. 
Math
Thank you 
Math
What is the value of a & b? I don’t understand. 
Math
I don’t know how to set this problem up. 
physics
T=sqrt(2 times height) *gravity T= sqrt{(30)*9.8} T= sqrt(3.06) T= 1.7 seconds Therefore it would take 1.7 seconds Max height : 1.7 seconds * 9.8 m/s^2 =16.66 m or 17 meters approx Therefore the max height reached is approx 17 m 
biology
how many copies of genome are present in a diploid cell in G1 phase? 
Please help needed urgent
q = 168 kj delta H= 92.2 kj/mol n=? n= q/ delta H n= 168 kj / 92.2 n= 1.82 n= m/Molar mass of NH3 m= n* MM m= 1.82 moles * 17.03 g/mole m= 31.02 g Therefore, approx . 31.02 grams of NH3 is produced 
Chemistry
I'm gonna try the second one delta V = 0.750 L 0.250L = 0.50 L P= 0.933atm w= Pdelta V w =  0.993 atm *0.50 L w=  0.4965 atm *L In Joules: 0.4965 L* atm *101.3 J/ 1 L*atm= 50.31 joules I think 50.31 joules of work is done (since energy is absored q is positive) 
science
Woman weighs= 55 kg cup of coffee = 94 mg of caffeine LDL = 400 mg/ kg Cup of coffee ( 8 oz) How many cups would it take to reach the LDL? 
Math
How did you get this answer ? 
Chemistry
A 8.07g sample of impure Ag2O decomposes into solid silver and O2(g). If 395mL of O2(g) is collected over water at 25 degrees Celsius and 749.2 mmHg barometric pressure, then what is the percent by mass of Ag2O in the sample? The vapor pressure of water at 25 degrees Celsius ... 
english
how does the men's final choice lead to the end of the story two friends 
world history
what parts of europe still has an agricultural economy in the early twentieth century 
English
Actually i'm taking a quiz with that question and the only two that overlap is the first one, so I'd have to assume that's what the answer is. 
Maths
Have you tried dividing 59761/1591? 
College Paper
How do I critique an article using 2 journal articles in a paper. What outline can I follow in writing my paper. 
English
The assignment was originally due on Tuesday; however, the instructor changed to due date to Thursday. Would this be correct? 
English
Pedros’ and Marleys’ books will be published in October. Is that the correct answer? 
English
Oh sorry i thought i put an xx for 4. My answer for 4 is D. Can you explain to me why its wrong. 
English
1.What is the correct way to punctuate the end of this sentence? Did the baseball player say, “I can do the splits” Did the baseball player say, “I can do the splits?” Did the baseball player say, “I can do the splits”? xx 2. Which sentence ... 
social studies
why was solon important? A. he was the macedonian king who united Greece B. he set up salaries for officials so poor people could serve C. he was the general who defeated the persian invaders D.he ended slavery for people who fell in debt i think its A please help 
English
Parents want their children to go to college however they do not always have the funds to send them 
geometry
square 1 has a side length of x, and square 2 has a side length of y. Square 2 is formed by joining the midpoints of the sides of square 1 in order. If x=2, find the ratio of the are of square 1 to the area of square 2 
math
License plates consist of letters and/ or digits. Calculate the number of licence plates that could be formed in each province or territory. Assume all numbers and letters are possible. a) Ontario, with 4 letters followed by 3 digits b)Québec, with 3 letters followed by... 
math
Caleb needs to create an 8digit password using only numbers. How many different passwords are there if he wants to use 00 exactly once? 
math
A salesperson needs to visit 15 different offices during the week. In how many ways could she visit 3 different offices each day from Monday to Friday? 
Algebra
I am supposed to be learning how to divide polynomials by monomials but im stuck please help. (4x³ + 10x² + 3a) ÷ 2x² 
Chemistry
A sample of 2.50 g LiI is added to 75.0 mL of water initially at 21.0°C. After stirring and dissolving, the temperature of the solution is 24.3°C. Assume that the specific heat of the solution is 4.184 J/g°C, the density is 1.00 g/mL, and the calorimeter constant ... 
calculus
from a cardboard box 12 in by 8 inches are cut out so the sides can be folded up to make a box . What dimentions will yield a maximum volume? What is maximum volume? we got our V = 4x^340x^2+96x V'=12x^280x +96 then we know to use quadratic equation I get 20( +/) sqrt ... 
Geometry Proofs
I don't think it's doable. You might not have been given enough information. Are you sure you included it all? 
Economic part 2
I think the answer is c 
Economic part 2
Two countries shown in the chart ranked higher in overall development than the United States did. The United States had a higher per capita GDP than these countries. What factors accounted for the higher rankings of these countries? A. Iceland had the highest rankings in all ... 
Trig
*35 degrees 
Trig
Morana is trolling for salmon in Lak Ontario. She sets the fishing rod so its tip is 1 m above the water and the line enters the water at an angle of 45 degrees. Fish have been tracked at a depth of 45km. What length of line must she let out? 
Statistics
Suppose x is a uniform random variable with values ranging from 20 to 70. Find the probability that a randomly selected observation is between 23 and 65. 
Statistics
Suppose x is a uniform random variable with values ranging from 40 to 60. Find the probability that a randomly selected observation exceeds 54. *** Im not sure how to do this. I thought I needed a standard deviation. 
Mathfractions
A receipt requires 1/2 cup of flour for every batch of cookies. How many full batches of cookies can be made with 5 1/2 flour? 
physics
A 75.0 kg person bends his knees and then jumps straight up. After his feet leave the floor, his motion is unaffected by air resistance and his center of mass rises by a maximum of 13.5 cm. Model the floor as completely solid and motionless. With what momentum does the person ...