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Find f''(1/2) using f(x) = ln(1-x).f'(x) = 1/(1-x) * -1 = -1/(1-x) so then using quotient rule: f''(x) = ((-1*-1) - ((1-x)(0)))
1. 2 answers
2. 395 views
What is the derivative of (ln(x))^x ?I have: f(x) = ln(x)^x f(x) = xlnx f'(x) = x/x + 1 * ln(x) f'(x) = 1 + ln(x) Is this
1. 3 answers
2. 506 views
the space shuttle engines cause an upward force of 3 x 10 ^5 N to act on the shuttle. gravity pulls down on the shuttle with a
1. 1 answer
2. 607 views
A large raindrop falling a cloud is acted on by a gravitational force of 4.9 x 10^-3 N directed downward and a force of air
1. 1 answer
2. 617 views
Suggest another solvent you might use instead of ether. Explain your choice giving the advantages and disadvantages of your
1. 4 answers
2. 720 views
A car is at rest on a horizontal road. What is the value of the frictional force? Explain your answer.A bison stands at rest on
1. 0 answers
2. 609 views
You are provided with 5 M solutions of sodium hydroxide and hydrochloric acid for use in this experiment (Separation). How you
1. 1 answer
2. 468 views
You are provided with 5 M solutions of sodium hydroxide and hydrochloric acid for use in this experiment (Separation). How you
1. 0 answers
2. 457 views
Water is leaking out of an inverted conical tank at a rate of 6700.0 cubic centimeters per min at the same time that water is
1. 0 answers
2. 636 views
a piano mover raises a 1000 N piano at a constant speed using a very light rope in a frictionless pulley system. with what force
1. 2 answers
2. 3,638 views
Separation and purificationA mixture of benzoic acid, benzaldehyde and butylamine. What kind of experiment should you design to
1. 1 answer
2. 1,011 views
let F(x) = f(2x) and suppose that the derivative of F(x) = x^(2). Find the derivative of f(2x).
1. 1 answer
2. 406 views
So here is the question:Find and equation of the tangent line to the graph: 4)f(x)=e^(2x) passing through the point (0,0) I find
1. 2 answers
2. 673 views
I have y = sin^2(3^(x))which I rewrite as y = (sin(3^(x)))^2 I got the derivative using the chain rule as the following y' =
1. 1 answer
2. 439 views
An experimenter finds that no photo-electrons are emitted from tungsten unless the wavelength of light is less than 270nm. Her
1. 0 answers
2. 566 views
What is the threshold frequency for the photoelectric effect on lithium (phi= 2.93eV)? What is the stopping potential if the
1. 0 answers
2. 809 views
An FM radio station of frequency 107.7MHz puts out a signal of 50,000W. How many photons/s are emitted?
1. 1 answer
2. 619 views
White dwarf stars have been observed with a surface temperature as hot as 200,000 o C. What is the wavelength of the maximum
1. 0 answers
2. 524 views
How many joules of energy per kilogram of rest mass are needed to bring a spacecraft from rest to a speed of 0.77c?
1. 1 answer
2. 2,040 views
The first one iswhat angle does a 3.8m ladder make with the ground, if it reaches 2.1m up the wall?The second one is A concreter
1. 1 answer
2. 699 views
Each of the following is a typical feature of a fee-based internet back up service EXCEPT ______.backup to external hard drive
1. 0 answers
2. 577 views
Hello, I am currently busy writing an essay and run against a wall:If government decreases the corporate tax rate, what would be
1. 0 answers
2. 551 views
Find the meanSample Value 1- 41.93 2- 12.55 3- 48.07 4- 90.81 5- 18.45 6- 55.81 I came up with 44.60 the online program "said
1. 1 answer
2. 367 views
Show calculations for how you will prepare 250 mL of 0.1 M AgNO3 solution from solid AgNO3 and water Give the reagent amounts
1. 2 answers
2. 700 views
The piperazine content of an impure commercial material can be determined by precipitating and weighing the diacetate:(C2H4)2N2H
1. 1 answer
2. 3,239 views
A 8.5 L sample is collected at 45 degrees C. What will the volume be if the temperature is raised to 70 degrees C.
1. 2 answers
2. 904 views
Hello. I am creating a resume. Under one of my bullet points, I want to say that I write inspirational blogs. How would I say
1. 1 answer
2. 533 views
what is the sum of a profit 0f $8000 and a loss of $13000?I'm realy struggling and need URGENT Help! plz respond
1. 3 answers
2. 915 views
A 56 g sample of peanut oil has a volume of 60.9 cm^3. Calculate the density of the peanut oil.
1. 1 answer
2. 879 views
Solve equation. -6e^8n+8 -3=-23
1. 1 answer
2. 516 views
Explanation of twin paradox in regards to special relativity theory.
1. 1 answer
2. 473 views
A pendulum consists of a swinging mass hanging from a massless string. The hanging mass is 2.0 kg and the string is 400.0 cm
1. 0 answers
2. 706 views
Let t be some ﬁxed real number. Find the volume of the region bounded by y =1/x and the y = 0 on the interval [1, t] rotated
1. 1 answer
2. 388 views
A student places a zinc electrode in a 0.80 M Zn2+(aq) solution which is connected by anelectrolyte to a 1.30 M Ag+ (aq)
1. 7 answers
2. 1,757 views
A box of mass 1.50 kg is given an initial velocity of 12.5 m/s up an inclined ramp that makes an angle of 25.0o with the ground,
1. 3 answers
2. 970 views
A block is sitting on a rough ramp. It is found that a force of F = 200.0 N (directed up the ramp) is required to keep the box
1. 4 answers
2. 778 views
solve the system of equation2x+y=5 y^2-2y=-3x+5
1. 1 answer
2. 421 views
solve each system of equations1.4x-0.5y=1.3 0.4x+1.1y=4.1
1. 1 answer
2. 484 views
assuming the distance between points (2,-3) and (-1,y) is 5 units, find y. how do you set this up?
1. 1 answer
2. 398 views
What is a ritualistic interpretation of the story of Theseus
1. 2 answers
2. 484 views
What is ironic about the death of Jason and Theseus from Greek mythology
1. 1 answer
2. 578 views
The temperature of an object in a experiment is T(t) = 60(1/3)^t + 10, where T is the temperature in degrees C and t is time in
1. 1 answer
2. 580 views
Choosing verbs that agree in Number with Their Subjects:1. Almost everybody (has,have) played games that originated in faraway
1. 7 answers
2. 658 views
Proofreading a Parapgraph for Subject-Verb Agreement, Help with the errors:1.Oridnary houses or a public building sometimes
1. 1 answer
2. 566 views
Does the function satisfy the hypotheses of the Mean Value Theorem on the given interval?f(x)= ln(x) , [1,6] If it satisfies the
1. 1 answer
2. 967 views
A rectangular fence is to be built along a river using the river as one side of the fence.the cost of the fencing for the two
1. 1 answer
2. 653 views
Water flows through a pipe with the inner diameter of 20cm at a speed of 1m/s. How long does it take for the water flowing out
1. 1 answer
2. 780 views
Alex's favorite restaurant is a buffet-style Chinese restaurant downtown. Each time he goes, he chooses 2 appetizers and 1
1. 1 answer
2. 688 views
Dominic drove 324 miles from Salt Lake City,Utah, to Bryce Canyon National Park in 6 hours and 34 minutes. What was his average
1. 1 answer
2. 615 views
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. In one test,
1. 0 answers
2. 560 views
If each voter voted for only one candidate what is the fewest number of voters who would have to vote differently in order for
1. 1 answer
2. 564 views
Given that f(x) = 2x2 – 3, find f(2)
1. 2 answers
2. 395 views
A person in a kayak starts paddling, and it accelerates from 0 to 0.59 m/s in a distance of 0.43 m. If the combined mass of the
1. 1 answer
2. 674 views
What is the pH of a solution in which [H3O^+] = 6.8 x 10^-5 M?What is the pH of a solution in which [OH^-] = 2.5 x 10^-9 M?
1. 1 answer
2. 492 views
If I paid $1000 for a corporate bond and this year the bond paid $60 in interest and I am in the 25% income tax bracket! what is
1. 1 answer
2. 493 views
On a curved roadway of radius 100 m, the suggested speed limit is 35 mph (approximately 16 m/s). What must the coefficient of
1. 1 answer
2. 762 views
Jerrod's bike has a tire diameter of 26 inches. How far will the bike travel in 100 rotations of its tires?
1. 5 answers
2. 2,584 views
draw a diagram that shows the chromosome combinations that are possible in the haploid gametes of an organism with a diploid
1. 1 answer
2. 1,034 views
A bag contains 5 blue, 4 red, 9 white, and 6 white marbles. If a marble is drawn at random and replaced 100 times, how many
1. 2 answers
2. 615 views
The first two terms in a geometric series is 12. The sum of the first three terms of the same series is 62. Determine the first
1. 0 answers
2. 1,068 views
The first term of a geometric series is 4 and the sum of the first three terms of the series is 64. Find the sum of the first
1. 1 answer
2. 650 views
For the geometric series, S4/S8 = 1/17. Determine the first three terms of the series if the first term is 3.
1. 1 answer
2. 2,432 views
A ferris wheel has diameter of 24 m and is 4 m above ground level at its lowest point. Assume that a rider enters a car from a
1. 3 answers
2. 990 views
An Aluminium wire of 1mm diammeter below the critical temperature of 1.2 K. iTS CRITICAL MAGNETIC FIELD IS 0.01t, What is the
1. 1 answer
2. 447 views
A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 92.9 m/s2
1. 1 answer
2. 548 views
School is planning to purchase a new copy machine. The principal has narrowed the choice to two models. Superfast Deluxe and
1. 3 answers
2. 664 views
A block of mass m1 = 4.90 kg sits on top of a second block of mass m2 = 14.5 kg, which in turn is on a horizontal table. The
1. 0 answers
2. 601 views
A train traveling at a speed of 110 km/h uniformly decelerates for 20 seconds. During that time it travels 450 m.a. What is the
1. 1 answer
2. 570 views
A crowbar is 4.000 metres long and has its pivot 50.000 centimetres from one end. A force of 2000.000 newtons is applied to the
1. 1 answer
2. 816 views
Forty-four percent of customers who visit a department store make a purchase. The probability, rounded to four decimal places,
1. 1 answer
2. 3,157 views
Forty-four percent of customers who visit a department store make a purchase. The probability, rounded to four decimal places,
1. 2 answers
2. 812 views
cos 2(pi/4 + x) = ?
1. 1 answer
2. 419 views
what are the current administration's policies related to crime? I can not find this information, all I can find is articles
1. 1 answer
2. 458 views
Please help me figure out what I am searching for in this question.•Discuss your first theory(Rational Theory) and how
1. 3 answers
2. 602 views
If the following integers were plotted on a number line with twenty-five, which integer would appear on the same side of zero
1. 5 answers
2. 539 views
In a poll of 700 selected people in the USA who are 50 years or older, 20% said they would prefer a complete overhauling of the
1. 1 answer
2. 488 views
It is claimed the average age of employee in a large company is 50. A sample of 36 employees is taken and the average age was
1. 1 answer
2. 469 views
There are 8 standard classifications of blood type. An examination for prospective laboratory technicians consists of having
1. 1 answer
2. 1,508 views
Given f(x) = 2 cos[3(x - 60)]+4.Graph one complete cycle of the above function when -180<x<180.
1. 1 answer
2. 383 views
The third term of a geometric series is 24 and the fourth term is 36. Determine the first term and common ratio.
1. 1 answer
2. 701 views
If you drag a file into a compressed folder, it is ________ to that folder.
1. 1 answer
2. 434 views
Alicia Eastman deposited $2,000 in a savings account at the Biltmore Bank paying 6% ordinary interest. How many years will it
1. 1 answer
2. 524 views
Alvin, Calvin and Melvin are running laps around a track. Alvin runs a lap every 4 minutes, Calvin runs a lap every 6 minutes
1. 2 answers
2. 563 views
Test the following function to determine whether it is a probability function. If it is not, then make it into a probability
1. 0 answers
2. 679 views
Consider the probability function. (Give your answers exactly.)P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. (b)
1. 5 answers
2. 501 views
Find z, given the following. (Give your answer correct to two decimal places.)x = 56, ì = 45 and ó = 5.3 z =
1. 1 answer
2. 365 views
Find the area under the standard normal curve between z = 0.7 and z = 2.15, P(0.7 < z < 2.15). (Give your answer correct to four
1. 1 answer
2. 1,013 views
The survival rate during a risky operation for patients with no other hope of survival is 87%. What is the probability that
1. 1 answer
2. 645 views
Consider the probability function. (Give your answers exactly.)P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. (b)
1. 0 answers
2. 427 views
Test the following function to determine whether it is a probability function. If it is not, then make it into a probability
1. 0 answers
2. 609 views
Find P(A or B). (Give your answer correct to two decimal places.)P(A) = 0.35, P(B) = 0.5, and P(A and B) = 0.18
1. 0 answers
2. 403 views
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y.x 7 7 5 5 7 y 95
1. 6 answers
2. 2,553 views
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y.x 7 7 5 5 7 y 95
1. 1 answer
2. 997 views
If real numbers a and b satisfy a^2 + b^2 = 64, what is the distance between the lines ax + by = 1 and ax + by = 417 ?
1. 0 answers
2. 402 views
An operation produces A−1/A from a fraction A= m/n, where m ≠ n and m ≠ 0. If the initial value of A is 24/47 and the
1. 0 answers
2. 450 views
If positive integers x and y satisfy the equation xy−5x−10y+43=0, the sum x+y is constant. What is the value of x+y?
1. 1 answer
2. 451 views
What is the remainder when f(x)=x^2220 + x^2215 + x^2210 + … + x^10 + x^5 + x^0 is divided by x^4 + x^3 + x^2 + x + 1?Note
1. 1 answer
2. 405 views
Stacey used her 20% discount card to buy 7 cans of tomatoes and 15 cans of mushrooms for $10.64. The next day Brian spent $ 7.21
1. 1 answer
2. 1,180 views
The equation of the line tangent to (x^2+y^2)^4=16x^2y^2 at (x,y)=(−1,1) is ay = bx + c, where a, b and c are positive
1. 1 answer
2. 382 views
An operation produces A−1/A from a fraction A= m/n, where m ≠ n and m ≠ 0. If the initial value of A is 24/47 and the
1. 0 answers
2. 405 views

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